Merge GNU Make 4.2.1 into master
Test: none
Change-Id: Id4ee1eb80ac33ae1f44f55cd1832897aac1dc058
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0764966
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,62 @@
+# Development artifacts
+ID
+TAGS
+.*gdbinit
+.gdb_history
+*~
+#*
+.#*
+
+# Configure artifacts
+ABOUT-NLS
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache
+config.cache
+config.h
+config.h.in
+config.log
+config.status
+configure
+stamp-h1
+
+# Build artifacts
+.deps
+gmk-default.h
+loadavg
+make
+*.o
+*.exe
+*.dll.a
+*.obj
+*.lib
+*.pdb
+*.sbr
+
+# Windows build artifacts
+WinDebug/
+WinRel/
+GccDebug/
+GccRel/
+
+# Distribution artifacts
+.dep_segment
+.check-git-HEAD
+ChangeLog
+Makefile.DOS
+NMakefile
+README
+README.DOS
+README.OS2
+README.W32
+SMakefile
+build.sh
+build.sh.in
+config.ami
+config.h-vms
+config.h.W32
+configh.dos
+make-[0-9]*/
+make-[0-9]*.tar.*
+checkcfg.*.log
diff --git a/.purify b/.purify
new file mode 100644
index 0000000..dc1b1d9
--- /dev/null
+++ b/.purify
@@ -0,0 +1,12 @@
+# Solaris (2.5.1) has a couple if issues.
+#
+suppress plk malloc; setvbuf "libc*"; main "main.c"
+suppress umr kstat_read; kstat_chain_update; kstat_open; getloadavg
+suppress umr kstat_chain_update; kstat_open; getloadavg
+
+# The command line options stuff leaks a little bit. No big deal.
+#
+suppress mlk malloc; xmalloc "misc.c"; decode_env_switches "main.c"
+suppress plk malloc; xmalloc "misc.c"; decode_env_switches "main.c"
+suppress mlk malloc; xmalloc "misc.c"; concat "misc.c"; decode_env_switches "main.c"
+suppress plk malloc; xmalloc "misc.c"; concat "misc.c"; decode_env_switches "main.c"
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..9b6212f
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,88 @@
+-----------------------------------
+
+GNU make development up to version 3.75 by:
+ Roland McGrath <roland@gnu.org>
+
+
+Development starting with GNU make 3.76 by:
+ Paul D. Smith <psmith@gnu.org>
+
+ Additional development starting with GNU make 3.81 by:
+ Boris Kolpackov <boris@kolpackov.net>
+
+
+GNU Make User's Manual
+ Written by:
+ Richard M. Stallman <rms@gnu.org>
+
+ Edited by:
+ Roland McGrath <roland@gnu.org>
+ Bob Chassell <bob@gnu.org>
+ Melissa Weisshaus <melissa@gnu.org>
+ Paul D. Smith <psmith@gnu.org>
+
+-----------------------------------
+GNU make porting efforts:
+
+ Port to VMS by:
+ Klaus Kaempf <kkaempf@progis.de>
+ Hartmut Becker <Hartmut.Becker@hp.com>
+ Archive support/Bug fixes by:
+ John W. Eaton <jwe@bevo.che.wisc.edu>
+ Martin Zinser <zinser@decus.decus.de>
+
+ Port to Amiga by:
+ Aaron Digulla <digulla@fh-konstanz.de>
+
+ Port to MS-DOS (DJGPP), OS/2, and MS-Windows (native/MinGW) by:
+ DJ Delorie <dj@delorie.com>
+ Rob Tulloh <rob_tulloh@tivoli.com>
+ Eli Zaretskii <eliz@gnu.org>
+ Jonathan Grant <jg@jguk.org>
+ Andreas Beuning <andreas.buening@nexgo.de>
+ Earnie Boyd <earnie@uses.sf.net>
+ Troy Runkel <Troy.Runkel@mathworks.com>
+
+-----------------------------------
+Other contributors:
+
+ Janet Carson <janet_carson@tivoli.com>
+ Howard Chu <hyc@highlandsun.com>
+ Ludovic Courtès <ludo@gnu.org>
+ Paul Eggert <eggert@twinsun.com>
+ Ramon Garcia Fernandez <ramon.garcia.f@gmail.com>
+ Klaus Heinz <kamar@ease.rhein-main.de>
+ Michael Joosten
+ Jim Kelton <jim_kelton@tivoli.com>
+ David Lubbren <uhay@rz.uni-karlsruhe.de>
+ Tim Magill <tim.magill@telops.gte.com>
+ Markus Mauhart <qwe123@chello.at>
+ Greg McGary <greg@mcgary.org>
+ Thien-Thi Nguyen <ttn@gnuvola.org>
+ Thomas Riedl <thomas.riedl@siemens.com>
+ Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+ Carl Staelin (Princeton University)
+ Ian Stewartson (Data Logic Limited)
+ David A. Wheeler <dwheeler@dwheeler.com>
+ David Boyce <dsb@boyski.com>
+ Frank Heckenbach <f.heckenbach@fh-soft.de>
+
+With suggestions/comments/bug reports from a cast of ... well ...
+hundreds, anyway :)
+
+-------------------------------------------------------------------------------
+Copyright (C) 1997-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
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+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
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+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
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+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
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+ Finally, every program is threatened constantly by software patents.
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+ The precise terms and conditions for copying, distribution and
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+ TERMS AND CONDITIONS
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+ 0. Definitions.
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+ "This License" refers to version 3 of the GNU General Public License.
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+in force. You may convey covered works to others for the sole purpose
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+sale, or importing the Program or any portion of it.
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+hereafter acquired, that would be infringed by some manner, permitted
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+patent license under the contributor's essential patent claims, to
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+available, or (2) arrange to deprive yourself of the benefit of the
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+license to downstream recipients. "Knowingly relying" means you have
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+
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+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
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+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
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+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/ChangeLog.1 b/ChangeLog.1
new file mode 100644
index 0000000..c37b139
--- /dev/null
+++ b/ChangeLog.1
@@ -0,0 +1,4997 @@
+Tue Oct 29 20:57:36 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.
+
+ * remake.c (update_file_1): Check for deps still running before
+ giving up if any dep has failed.
+
+Sat Oct 26 16:20:00 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h [uts]: #undef S_ISREG and S_ISDIR if defined.
+
+Fri Oct 25 19:50:39 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.17.
+
+Thu Oct 24 16:58:36 1991 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * job.c (start_job): Don't check for empty cmds before tweaking the
+ command_ptr. Just let construct_command_argv do it.
+
+Tue Oct 22 20:21:03 1991 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * remake.c, arscan.c [POSIX]: <fcntl.h> instead of <sys/file.h>.
+
+ * make.h [POSIX]: Declare vfork as pid_t.
+
+Mon Oct 21 15:37:30 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.16.
+
+ * job.c (construct_command_argv, construct_command_argv_internal):
+ Take new 2nd arg RESTP. If non-NULL, stop parsing at newline, and
+ store addr of the NL in *RESTP.
+ (start_job): Don't chop expanded cmd lines up; use above code to do it.
+ * function.c (expand_function: `shell'): Pass RESTP==NULL.
+
+Sat Oct 19 15:36:34 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.15.
+
+Fri Oct 18 15:26:55 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (start_job): If on the same cmds->command_lines elt, look
+ at cmds->lines_recurse[CHILD->command_line - 1] instead of
+ [CHILD->command_line].
+
+ * dir.c [sgi]: <sys/dir.h>, not ndir or anything else.
+
+Thu Oct 17 16:28:55 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * file.c (print_file_data_base): Remove unused var.
+
+ * make.h [NeXT]: No #define ANSI_STRING.
+
+Tue Oct 15 20:08:41 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.60.14.
+
+Fri Oct 11 16:23:52 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * make.h: Use PATH_MAX for getwd defn.
+
+ * make.h: Move getcwd/getwd outside of #ifndef POSIX, and make it
+ #if USG||POSIX.
+
+Thu Oct 10 11:53:31 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.60.13.
+
+ * read.c (read_all_makefiles): When processing MAKEFILES, save the
+ malloc'd ptr to be freed, instead of freeing part-way thru it.
+
+ * remake.c (update_file_1): Don't tweak FILE->also_make.
+ (update_file): Do it here. After calling update_file_1, set the
+ command_state, update_status, and updated members of each also_make
+ elt to FILE's values.
+
+Tue Oct 8 14:56:04 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.60.12.
+
+ * remake.c (notice_finished_file): Set command_state of FILE and
+ its also_make chain to cs_finished here.
+ * commands.c (execute_file_commands), job.c (child_handler),
+ remake.c (remake_file): Don't set it before calling
+ notice_finished_file.
+
+ * file.h (struct file): Changed `also_make' to struct dep *.
+ * job.c (delete_child_targets), file.c (print_file_data_base),
+ remake.c (notice_finished_file), implicit.c (pattern_search):
+ Use dep chain instead of array of file names.
+
+Mon Oct 7 17:04:33 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.60.11.
+
+ * arscan.c: Declare open.
+ * misc.c: Declare {get,set}{re,}[ug]id.
+ * variable.c (target_environment): Declare getenv.
+
+Sat Oct 5 15:13:03 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * make.h [NeXT]: <string.h> instead of <strings.h>.
+
+Fri Oct 4 16:05:41 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * default.c (default_suffixes, defualt_suffix_rules): Add .texi
+ just like .texinfo.
+
+ * Version 3.60.10.
+
+ * job.c: Move vfork decl into make.h.
+
+Fri Sep 27 18:45:30 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * compatMakefile (glob/libglob.a): Pass CC value to submake.
+
+Thu Sep 26 00:08:15 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * load.c (load_average): Made not static.
+
+ * load.c [ultrix && vax]: Define LDAV_TYPE and LDAV_CVT for Ultrix 4.2.
+
+Tue Sep 24 00:17:20 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.9.
+
+ * read.c (record_files): Warn about extra cmds even if the target's
+ name begins with a dot. I think the lusers can handle this.
+
+Mon Sep 23 22:33:26 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h, arscan.c: Don't declare bcmp, bzero, or bcopy if they're
+ #define'd.
+ * make.h: Declare write and open.
+
+ * default.c (default_suffixes, default_suffix_rules,
+ default_variables): Add .C just like .cc.
+ * make.texinfo (Catalogue of Rules): Document .C.
+
+ * make.man (-w): Fix gramo.
+
+Fri Sep 20 17:18:16 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h: No text after #endif.
+
+Sun Sep 15 16:20:46 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.60.8.
+
+ * implicit.c (pattern_search): In the second pass, recurse on rule
+ deps that don't have a %. Why did I make it not do this?
+
+Fri Sep 14 18:29:39 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * read.c (record_files): For extra cmds, use the last ones given.
+ If the target's name doesn't begin with a dot (bletch!!), emit a
+ two-line warning, one line giving the old cmds' location and the
+ other the new cmds' location.
+
+ * misc.c (makefile_error, makefile_fatal): New fns.
+ * make.h: Declare them.
+ * Use them instead of error/fatal for all msgs including a file
+ name and line number.
+
+Thu Sep 13 16:35:54 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * make.h: Declare define_default_variables.
+ Declare ar_parse_name, instead of ar_name_parse (M-t).
+
+Mon Sep 10 18:35:40 1991 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * Version 3.60.7.
+
+ * make.texinfo (Variables: Setting): Say whitespace is removed if
+ "immediately after =", rather than simply "after =".
+
+ * job.c: Don't declare wait #ifdef POSIX.
+
+ * make.h [__GNUC__]: #undef alloca and then #define it.
+
+ * main.c (main): When pruning makefiles which might loop from the
+ read_makefiles chain, look at all `prev' entries of double-colon rules.
+
+Fri Sep 7 00:41:53 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * main.c (main): Only remove makefiles with cmds but no deps from
+ the list of makefiles to be rebuilt if they are :: targets.
+ : targets with cmds and no deps are not dangerous.
+
+Wed Sep 5 17:35:51 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (defines): Add comment that some compilers take
+ ENUM_BITFIELDS but produce bogus code.
+ (LOAD_AVG): Fix examples to \ "s.
+ (LOADLIBES): Add comment that SGI Irix needs -lmld for nlist.
+
+Tue Sep 4 20:26:26 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.6.
+
+Fri Aug 30 19:34:04 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (update_file_1): When checking the command_state of
+ deps, check through the prev chain.
+ (update_goal_chain): When a target is finished, start checking its
+ prev (if it has one) instead.
+
+Wed Aug 7 17:32:03 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * rule.c (convert_to_pattern): Allow files with deps to define
+ suffix rules (really this time).
+
+Mon Aug 5 17:09:21 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * misc.c (user_access, make_access): Do saved-IDs (USG) flavor
+ #ifdef POSIX.
+
+ * file.c (enter_file): Strip ./s here.
+ * read.c (parse_file_seq): Not here.
+
+Tue Jul 23 23:34:30 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile: Added comment that -lPW alloca is broken on HPUX.
+
+Thu Jul 18 03:10:41 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.5.
+
+ * read.c (read_makefile): Ignore lines containing chars that are
+ all isspace, not just all isblank.
+
+ * make.texinfo (Copying): @include gpl.texinfo, rather than copying
+ the text.
+ * gpl.texinfo: New file (symlink to /gd/gnu/doc/gpl.texinfo).
+ * GNUmakefile: Put gpl.texinfo in distribution.
+
+Tue Jul 16 12:50:35 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * make.h: #define _GNU_SOURCE before including headers.
+ Include <ctype.h> and define isblank if <ctype.h> doesn't.
+ * commands.c: Don't include <ctype.h> here.
+ * *.c: Use isblank instead of explicit ' ' || '\t'.
+
+Mon Jul 15 17:43:38 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * function.c (expand_function: `filter'/`filter-out'): Fixed to not
+ loop infinitely.
+
+Fri Jul 12 12:18:12 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * function.c (expand_function: `filter'/`filter-out'): Rewritten to
+ handle filter-out of multiple patterns properly. Also no longer
+ mallocs and reallocs for temp array; uses alloca and a linked-list
+ instead.
+
+Wed Jul 10 22:34:54 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.4.
+
+ * make.texinfo: Moved some @groups that were outside @examples to
+ be inside them.
+
+ * load.c [apollo] (load_average): Define using special syscall for
+ Apollo DOMAIN/OS SR10.n.
+
+Thu Jul 4 12:32:53 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * make.texinfo (Missing): Added Unix excessive implicit rule
+ search; mention that POSIX.2 doesn't require any of the missing
+ features.
+ (Top): Updated printed manual price to $15.
+
+Wed Jul 3 18:17:50 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * file.c (rename_file): Carry over last_mtime when merging files.
+ * remake.c (f_mtime): Tail-recurse after renaming VPATH file, to
+ check for saved date in existing renamed-to file.
+
+ * remote-cstms.c (start_remote_job): Use PATH_VAR.
+
+ * commands.c [POSIX || __GNU_LIBRARY__]: Don't declare getpid.
+
+ * compatMakefile (glob-{clean,realclean}): Run clean/realclean in glob.
+ (clean, realclean): Require those.
+
+ * make.h: Always declare environ.
+ Don't declare old glob functions.
+
+ * GNUmakefile: Make no-lib deps for load.c and remote.c.
+
+Tue Jul 2 18:35:20 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.60.3.
+
+Mon Jul 1 16:58:30 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (multi_glob): Don't pass GLOB_QUOTE flag to glob.
+
+ * make.h [POSIX]: Include <unistd.h>, and don't declare things that
+ should be there.
+
+ * main.c (main) [USG && sgi]: malloc a buffer for broken sgi stdio.
+
+Sat Jun 29 11:22:21 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * function.c (expand_function: `shell'): Use alloca for the error
+ msg buffer, instead of assuming an arbitrary max size.
+
+Fri Jun 28 18:15:08 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c [POSIX] (search_path): Do real 1003.1 goop to get NGROUPS_MAX.
+
+Wed Jun 26 11:04:44 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * default.c (define_default_variables): New fn.
+ (install_default_implicit_rules): Code for above fn moved there.
+ * main.c (main): Do define_default_variables before reading the
+ makefile.
+
+Tue Jun 25 17:30:46 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * main.c (main): Quote ; in MAKEOVERRIDES.
+
+Tue Jun 18 13:56:30 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * compatMakefile: Fixed typo in comment.
+
+Tue Jun 11 00:14:59 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.60.2.
+
+Mon Jun 10 14:46:37 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h: Always include <sys/types.h>.
+ [POSIX]: Include <limits.h> and #define MAXPATHLEN to be PATH_MAX.
+
+ * default.c (default_suffix_rules: .texinfo.dvi): Use $(TEXI2DVI).
+ (default_variables): Define TEXI2DVI.
+
+Thu Jun 6 16:49:19 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.60.1.
+
+ * make.h (SIGNAL): Cast handler arg to SIGHANDLER type.
+
+Wed Jun 5 06:00:43 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * read.c (multi_glob): Use POSIX.2 `glob' function.
+ If a glob pattern matches nothing, leave it as is (a la sh, bash).
+ Also, if can't find USER for ~USER, leave it as is (a la bash).
+
+Mon Jun 3 16:36:00 1991 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * compatMakefile: Rewrote comments about -Ds to be easier to use.
+
+ * make.h, arscan.c, remake.c, main.c, dir.c, job.c: Changed tests
+ of _POSIX_SOURCE to POSIX.
+
+ * job.c: Take getdtablesize out of #ifdef __GNU_LIBRARY__.
+ Put separately #ifdef USG.
+
+ * COPYING: Replaced with version 2.
+ * Changed copyright notices to refer to GPL v2.
+
+Thu May 30 00:31:11 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h: Don't declare sigblock for POSIX.
+
+ * main.c (main, log_working_directory) [USG]: Get getcwd failure
+ mode from errno, not passed buffer like BSD getwd.
+
+ * misc.c (child_access): New fn to set access for a child process;
+ like user_access, but you can't change back.
+ * make.h: Declare it.
+ * job.c (exec_command): Use it in place of user_access.
+
+Wed May 29 23:28:48 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (default_variables) [pyr]: PC = pascal.
+
+Tue May 28 20:24:56 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (print_variable): Put a newline before `endef'.
+
+Sat May 25 02:39:52 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.60.
+
+Wed May 22 19:41:37 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.59.5.
+
+Thu May 16 13:59:24 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (main): Do USGr3 setvbuf behavior #ifdef APOLLO.
+ Don't handle SIGCHLD #ifdef USG (Apollo is USG but defines SIGCHLD).
+
+Fri May 10 14:59:33 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * remake.c [sgi]: Don't include <sys/file.h>.
+
+Wed May 8 01:54:08 1991 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * make.h (SIGHANDLER): #define as (void *) #if __STDC__,
+ else (int (*)()).
+ (SIGNAL): Use it to cast return value.
+ * main.c (main): Cast SIG_IGN to SIGHANDLER when comparing.
+ * job.c (block_signals, unblock_signals): Use SIGNAL instead of signal.
+
+ * main.c: Declare mktemp to return char*, not int.
+
+ * job.c (new_job): Don't increment files_remade.
+ * remake.c (notice_finished_file): Do it here.
+
+ * read.c (do_define): Don't clobber DEFINITION[-1] on empty defns.
+ Free storage that is no longer needed.
+
+Wed Apr 24 20:49:48 1991 Roland McGrath (roland at churchy.gnu.ai.mit.edu)
+
+ * misc.c (message): New fn to print informational msgs with
+ leading "make: " or "make[N]: ".
+ * make.h: Declare it.
+ * remake.c (update_file): Use it instead of printf.
+
+Fri Apr 19 05:52:45 1991 Roland McGrath (roland at churchy.gnu.ai.mit.edu)
+
+ * main.c (main): When there are no targets, if there were no
+ makefiles, print a different error message, which mentions makefiles.
+
+Tue Apr 16 03:22:45 1991 Roland McGrath (roland at geech.gnu.ai.mit.edu)
+
+ * remake.c (update_file): Print "nothing to be done" instead of "is
+ up to date" if FILE->cmds == 0.
+
+ * job.c [!WIFEXITED]: Define if not already defined.
+
+Thu Apr 11 18:00:50 1991 Roland McGrath (roland at wookumz.gnu.ai.mit.edu)
+
+ * arscan.c (ar_name_equal): Fixed truncation comparison.
+
+Tue Apr 2 16:17:35 1991 Roland McGrath (roland at churchy.gnu.ai.mit.edu)
+
+ * glob.c: Use common version from djm.
+ * dir.c: Snarfed #ifdef mess for <dirent.h> or whatever from glob.c.
+ (dir_file_exists_p): Ignore directory entries with d_ino==0.
+
+Mon Apr 1 20:49:45 1991 Roland McGrath (roland at albert.gnu.ai.mit.edu)
+
+ * Version 3.59.4.
+
+Fri Mar 29 19:16:18 1991 Roland McGrath (roland at albert.gnu.ai.mit.edu)
+
+ * job.c (free_child): Free CHILD->environment and its elts.
+
+Sat Mar 23 14:08:09 1991 Roland McGrath (roland at albert.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Don't ignore lines containing only
+ comments if they start with a tab. Such lines should be passed to
+ the shell for it to decide about the comments.
+
+ * job.c (free_child): Free CHILD->command_lines and its elts, not
+ CHILD->commands (which is obsolete).
+ * job.h, job.c: Remove obsolete `commands' member of `struct child'.
+
+Sun Mar 17 18:40:53 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * remake.c (update_file): Print a msg for a top-level up-to-date
+ phony target (a different one than for a real file).
+
+ * read.c (conditional_line): Boundary check so we don't check the
+ value of the -1th elt of the stack (which is bogus).
+
+Sat Mar 16 16:58:47 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * read.c (conditional_line): Don't evaluate an if* when we're
+ already ignoring. Instead, just push a new level, with a value of
+ 1, to keep ignoring.
+
+Tue Mar 12 00:16:52 1991 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * Version 3.59.3.
+
+Mon Mar 11 23:56:57 1991 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Quote backslashes
+ when building the shell -c line.
+
+Fri Mar 8 01:40:18 1991 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * job.c (exec_command): Call user_access rather than setgid(getgid()).
+
+ * misc.c (remove_comments): Renamed from collapse_line; took out
+ collapse_continuations call.
+ * make.h: Change decl.
+ * read.c (read_makefile): Collapse continuations on the line buffer
+ immediately after reading it. Call remove_comments rather than
+ collapse_line (which is now defunct).
+
+Thu Feb 21 18:06:51 1991 Roland McGrath (mcgrath at cygint.cygnus.com)
+
+ * misc.c (user_access, make_access): New fns to toggle btwn permissions
+ for user data (files and spawning children), and permissions for make
+ (for taking the load average, mostly).
+ * make.h: Declare them.
+ * job.c (start_job): Call make_access before wait_to_start_job, and
+ user_access after.
+ * main.c (main): Call user_access before doing much.
+
+Mon Feb 3 15:02:03 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * Version 3.59.2.
+
+Tue Jan 29 20:30:50 1991 Roland McGrath (roland at cygint.cygnus.com)
+
+ * read.c (read_all_makefiles): Use allocated_variable_expand to expand
+ `$(MAKEFILES)', since the results are used across calls to
+ read_makefile, which could clobber them.
+
+Wed Jan 23 00:24:10 1991 Roland McGrath (roland at cygint.cygnus.com)
+
+ * main.c (main): Call install_default_implicit_rules after reading
+ makefiles, not before.
+ * default.c (install_default_implicit_rules): If a suffix-rule file
+ entry has cmds, don't give it any from default_suffix_rules.
+
+Fri Jan 17 17:39:49 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * arscan.c: Added support for AIX archives.
+
+ * remake.c: Don't include ar.h.
+ * main.c: Removed unused atol decl.
+ * arscan.c (ar_scan): Declare arg FUNCTION to return long int.
+ * ar.c (ar_touch): Don't perror for an invalid archive.
+ * make.h: Declare lseek as long int.
+
+ * job.c [hpux]: Define getdtablesize a la USG.
+
+Sun Jan 12 21:08:34 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * Version 3.59.1.
+
+Fri Jan 10 03:48:08 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * job.c (search_path): Take new arg, place to put full pathname (rather
+ than mallocing it).
+ (exec_command): Pass it, using auto storage.
+
+ * main.c (print_version): Updated copyright years.
+
+Wed Jan 8 19:46:19 1991 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * job.c [_POSIX_SOURCE]: Just #include <sys/wait.h>, and define macro
+ WAIT_NOHANG in terms of waitpid.
+ [!_POSIX_SOURCE && (HAVE_SYS_WAIT || !USG)]: Don't #include <signal.h>
+ (make.h does).
+ Define macro WAIT_NOHANG in terms of wait3.
+ (child_handler): #ifdef on WAIT_NOHANG, not HAVE_SYS_WAIT || !USG.
+ Use WAIT_NOHANG macro instead of wait3.
+
+ * file.h (struct file.command_state): Remove unused elt.
+
+Wed Dec 26 18:10:26 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * commands.c (set_file_variables): If FILE got its commands from
+ .DEFAULT, make $< == $@ (4.3 BSD/POSIX.2d11 compat).
+
+Mon Dec 24 17:36:27 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * default.c (default_variables): Rename 2nd LINK.s defn to LINK.S.
+
+Fri Dec 14 15:05:25 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * vpath.c (selective_vpath_search): Check for makefile-mentioned before
+ checking for actual existence. The old order loses if the containing
+ directory doesn't exist (but a rule might make it).
+
+ * make.h [__GNUC__]: Don't #define alloca if already #define'd.
+
+ * rule.c (convert_to_pattern): Don't look at the target constructed for
+ the empty rule when making the null-suffix rule. Construct it over
+ again, since the former may have been freed already.
+
+Thu Dec 13 17:21:03 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * make.h [__GNU_LIBRARY__]: Include <unistd.h> to get random fn decls.
+
+Wed Dec 12 17:12:59 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * make.h, arscan.c, glob.c: Only include <memory.h> #ifdef USG.
+
+ * variable.c (define_variable_in_set): Replace env_overrides check that
+ wasn't really redundant (undoing Sep 28 change). Add comment saying
+ why this check is necessary.
+
+ * job.c, main.c [DGUX]: Needs siglist like USG.
+
+Mon Dec 11 01:19:29 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * default.c [M_XENIX]: For rules that are different for Xenix, use the
+ generic Unix version #ifdef __GNUC__.
+
+ * main.c [M_XENIX]: Use USGr3-style setvbuf call.
+
+ * read.c (find_percent): Do backslash folding correctly, not leaving
+ extra crud on the end of the string.
+
+Sun Dec 10 21:48:36 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * job.c: Don't declare wait3 if it's #defined.
+
+ * GNUmakefile, compatMakefile, make.texinfo: Change make-info
+ to make.info.
+
+Thu Dec 7 21:20:01 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * make.h [STDC_HEADERS || __GNU_LIBRARY__ || _POSIX_SOURCE]: Use
+ ANSI <string.h> and names for str/mem functions.
+ Use <stdlib.h> to declare misc fns rather than explicit decls.
+ [_POSIX_SOURCE]: Don't declare kill (<signal.h> will).
+ Include <sys/types.h> before <signal.h> because some braindead
+ nonconformant 1003.1 implementation needs it.
+ * misc.c: Don't declare malloc, realloc. Do it in make.h.
+ * arscan.c, glob.c: Use sequence for string fns from make.h verbatim.
+ * make.h (S_ISDIR, S_ISREG): Declare if necessary.
+ * commands.c (delete_child_targets), job.c (search_path), read.c
+ (construct_include_path): Use S_ISfoo(m) instead of
+ (m & S_IFMT) == S_IFfoo.
+ * dir.c, glob.c [_POSIX_SOURCE]: Use dirent.
+
+Wed Nov 29 22:53:32 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * Version 3.59.
+
+Tue Nov 28 16:00:04 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * arscan.c (ar_name_equal) [APOLLO]: Don't do `.o' hacking. On Apollos
+ the full file name is elsewhere, and there is no length restriction (or
+ so I'm told).
+
+Thu Nov 23 17:33:11 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * load.c [hp300 && BSD] (LDAV_CVT): Define for this system.
+
+Tue Nov 21 07:58:40 1990 Roland McGrath (roland at albert.ai.mit.edu)
+
+ * read.c (record_files): Fix trivial bug with deciding to free storage
+ for a file name.
+
+Thu Nov 16 06:21:38 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * compatMakefile ($(bindir)/make): Install it setgid kmem.
+
+Thu Nov 1 16:12:55 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * GNUmakefile (make-*.tar.Z): Use `h' option to tar (dereference
+ symlinks), to grab texinfo.tex from wherever it lives.
+
+Tue Oct 30 16:15:20 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * Version 3.58.13.
+
+Fri Oct 26 14:33:34 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * GNUmakefile: make-*.tar.Z: Include texinfo.tex.
+
+Tue Oct 23 19:34:33 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * main.c (define_makeflags): When there are no flags to write, make
+ sure the array has two leading nulls, since `MAKEFLAGS' is defined from
+ &flags[1].
+
+ * main.c (default_keep_going_flag): New variable (constant one).
+ (command_switches: -k, -S): Use above for default value.
+ (define_makeflags): Only write flag/flag_off switches if they are on,
+ and either there is no default value, or they are not the default.
+
+Mon Oct 22 16:14:44 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * main.c (struct command_switch): New member `no_makefile'.
+ (command_switches: -n, -q, -t): Set no_makefile == 1.
+ (define_makeflags): Take new arg MAKEFILE: if nonzero, don't use
+ options whose `no_makefile' flags are set.
+ (main): Call define_makeflags with MAKEFILE==1 before remaking
+ makefiles, and again with MAKEFILE==0 before remaking goals.
+
+Tue Oct 2 17:16:45 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * Version 3.58.12.
+
+Mon Oct 1 15:43:23 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * arscan.c [HPUX]: Use PORTAR==1 format.
+
+Sat Sep 29 16:38:05 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * make.h, remake.c, arscan.c: Don't declare `open'.
+
+Fri Sep 28 04:46:23 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * variable.c (define_variable_in_set): Remove redundant -e check.
+
+Wed Sep 26 00:28:59 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * job.c (start_job): Set RECURSIVE from the right elt of
+ CHILD->file->cmds->lines_recurse.
+
+ * commands.c (chop_commands): Don't botch the line count for allocating
+ CMDS->lines_recurse.
+
+ * Version 3.58.11.
+
+ * job.c (start_job): Don't always increment CHILD->command_line! Only
+ do it when CHILD->command_ptr has run out! (Dumb bug. Sigh.)
+
+Thu Sep 20 02:18:51 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * GNUmakefile [ARCH]: Give explicit rule for remote.{c,dep} to use
+ variable `REMOTE' for more flags.
+ ($(prog)): Link in $(LOADLIBES).
+
+Wed Sep 19 02:30:36 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * commands.h (struct commands): New member `ncommand_lines', the number
+ of elts in `command_lines' et al.
+ * commands.c (chop_commands): Set `ncommand_lines' elt of CMDS, and
+ don't put a nil pointer at the end of `command_lines'.
+ * job.h (struct child): New member `command_lines' to hold
+ variable-expanded command lines.
+ * job.c (new_job): Store expanded command lines in `command_lines'
+ member of new child. Don't clobber FILE->cmds.
+ (start_job): Use CHILD->command_lines in place of
+ CHILD->file->cmds->command_lines.
+
+ * variable.h, variable.c, job.c, expand.c: Undo yesterday's change,
+ which is no longer necessary since we have cleverly avoided the issue.
+
+ * job.c (start_job): Don't variable-expand each command line.
+ (new_job): Do them all here, storing the expansions in the array.
+
+Tue Sep 18 01:23:13 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * variable.h (struct variable): Remove `expanding' member.
+ * variable.c (define_variable_in_set): Don't initialize it.
+ * expand.c (struct variable_expanding): New type, a linked list
+ containing `struct variable' pointers.
+ (variables_expanding): New variable, the chain of variables currently
+ being expanded.
+ (recursively_expand): Don't test and set `expanding' member.
+ Instead, run through the `variables_expanding' chain looking for a link
+ referring to V to find self-reference. Add a new link to the chain,
+ describing V, before recursive expansion, and pop it off afterward.
+ * job.c (child_handler): Save `variables_expanding' and clear it before
+ calling start_job, and restore it afterward. This avoids major lossage
+ when the SIGCHLD comes in the middle of variable expansion.
+
+Mon Sep 17 14:46:26 1990 Roland McGrath (roland at geech.ai.mit.edu)
+
+ * job.c, commands.c: Don't define sigmask.
+ * make.h: Put it here instead.
+
+ * variable.c (target_environment): If `.NOEXPORT' was specified as a
+ target, only export command-line and environment variables, and
+ file-origin variables that were in the original environment.
+
+ * make.man: Add missing ?roff control for `-I' option description.
+
+Thu Sep 13 14:10:02 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * load.c [UMAX]: Move #include <sys/sysdefs.h> to [not UMAX_43].
+
+Wed Sep 12 15:10:15 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * expand.c (recursively_expand): Don't use `reading_filename' and
+ `reading_lineno_ptr' if they're nil.
+
+Thu Aug 30 17:32:50 1990 Roland McGrath (roland at geech)
+
+ * Version 3.58.10.
+
+Tue Aug 28 04:06:29 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * job.c [USG] (unknown_children_possible): New variable, set nonzero
+ when it's possible for children not in the `children' chain to die.
+ (block_signals) [USG]: Set it.
+ (unblock_signals) [USG]: Clear it.
+ (child_handler) [USG]: Don't complain about unknown children if
+ `unknown_children_possible' is set.
+
+ * read.c (do_define): Make sure there's enough space for the newline,
+ so we don't write off the end of allocated space.
+
+ * arscan.c (ar_name_equal): Fixed to work when MEM is AR_NAMELEN-1 but
+ NAME is not the same length.
+
+Sat Aug 25 16:17:14 1990 Roland McGrath (roland at geech)
+
+ * job.c (construct_command_argv_internal): Use a static char array for
+ a constant, since old C has no auto aggregate initializers.
+
+Thu Aug 23 16:11:03 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * job.c (search_path): If PATH is nil or "" use a default path.
+
+Wed Aug 22 01:05:32 1990 Roland McGrath (roland at churchy.ai.mit.edu)
+
+ * Version 3.58.9.
+
+ * job.c (exec_command): Don't take PATH and SHELL args. Get them from
+ ENVP.
+ (child_execute_job): Don't take FILE arg, and don't pass path and shell
+ to exec_command.
+ (start_job): Don't pass FILE arg to child_execute_job.
+ * function.c (expand_function: `shell'): Ditto.
+ * main.c (main): Don't pass path and shell to exec_command.
+
+Fri Aug 17 23:17:27 1990 Roland McGrath (roland at geech)
+
+ * job.c (construct_command_argv_internal): New fn broken out of
+ construct_command_argv. Takes strings SHELL and IFS instead of doing
+ variable expansion for them. Recurse to make an argv for SHELL,
+ passing SHELL==0. When SHELL==0, don't recurse for shell argv; make a
+ simple one using /bin/sh.
+ (construct_command_argv): Do the variable expansions and call above.
+
+Thu Aug 16 19:03:14 1990 Roland McGrath (roland at geech)
+
+ * read.c (multi_glob): For ~USER/FILE, if USER isn't found, don't
+ change the file name at all.
+
+Tue Aug 7 18:33:28 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * function.c (expand_function: `suffix'/`notdir'): Don't kill the last
+ space if we never wrote one.
+
+ * function.c (expand_function: `suffix'): Retain the dot, like the
+ documentation says.
+
+Mon Aug 6 14:35:06 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.58.8.
+
+ * main.c (decode_switches): For positive_int and floating cases, move
+ SW past the arg (and don't set it to ""), so another switch can follow.
+
+Fri Aug 3 00:43:15 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * job.c (child_execute_job): Use unblock_signals instead of
+ push_signals_blocked_p (0).
+
+ * main.c (fatal_signal_mask): New variable, mask of signals caught with
+ fatal_error_signal.
+ (main): Set it.
+ * job.c ({block,unblock}_children): Renamed to {block,unblock}_signals.
+ Block/unblock both child signal and signals in fatal_signal_mask.
+ (children_blocked_p_{stack,max,depth}, {push,pop}_children_blocked_p):
+ Renamed from children to signals. Use {block,unblock}_signals instead
+ of {block,unblock}_children.
+ * commands.c (fatal_error_signal), job.c (wait_for_children, new_job,
+ child_execute_job, main, log_working_directory), function.c
+ (expand_function: `shell'), job.h: Rename {push,pop}_children_blocked_p
+ to {push,pop}_signals_blocked_p.
+ * job.c (child_handler): Call {block,unblock}_signals instead of just
+ {block,unblock}_remote_children. We need to block the fatal signals.
+
+Thu Aug 2 22:41:06 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * main.c, function.c: Fixed typos in comments.
+
+ * file.c (print_file_data_base): Fix computation of avg files/bucket.
+
+Tue Jul 31 22:11:14 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.58.7.
+
+Wed Jul 25 16:32:38 1990 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * arscan.c (ar_name_equal): Fixed to really do it right.
+ (ar_member_pos): Fixed order of args.
+ * ar.c (ar_member_date_1): Ditto.
+
+Fri Jul 20 15:30:26 1990 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * arscan.c (ar_name_equal): Rewritten. Accounts for a possible
+ trailing slash in MEM.
+
+ * remake.c (f_mtime): Keep track of whether ARNAME is used and free it
+ if not. Also free MEMNAME.
+ * ar.c (ar_member_date, ar_touch): Ditto.
+
+ * arscan.c (arscan) [HPUX or hpux]: Treat same as USGr3 PORTAR==1.
+
+ * make.h: If NSIG is not defined, but _NSIG is, #define NSIG _NSIG.
+
+ * compatMakefile: Don't use $* in explicit rules.
+
+ * default.c (default_variables: "PREPROCESS.S"): Include $(CPPFLAGS).
+
+ * remake.c (f_mtime): If FILE is an ar ref, get the member modtime.
+
+ * function.c (string_glob): Terminate the string properly when it's
+ empty.
+
+Wed Jul 18 11:26:56 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.58.6.
+
+ * commands.c (set_file_variables): Fixed computation for ^F/?F elt len.
+
+Sat Jul 14 13:41:24 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * job.c (construct_command_argv): Always use
+ allocated_variable_expand_for_file instead of variable_expand_for_file
+ because we might be called from inside a variable expansion (for the
+ `shell' function).
+
+ * function.c (expand_function: `shell'): Free the arglist's storage
+ correctly. construct_command_argv only allocates ARGV and ARGV[0].
+
+ * job.c (children_blocked_p_idx): Renamed to children_blocked_p_depth.
+ (push_children_blocked_p, pop_children_blocked_p): Use ..._depth
+ instead of ..._idx, and do it right!
+
+Wed Jul 11 15:35:43 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.h (SIGNAL): New macro to replace `signal' calls. Does arg and
+ ret value casts to (void *) #ifdef __STDC__ to avoid conflicts btwn
+ ANSI and BSD `signal' and handler types.
+ * main.c (main), job.c (child_handler): Use it.
+
+Fri Jul 6 00:00:38 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * ar.c (ar_member_date, ar_touch): Pass 2nd arg to f_mtime.
+
+ * read.c (read_makefile): Search the include path for MAKEFILES
+ variable makefiles (TYPE == 1), like it says in the manual.
+
+ * file.h (struct file), main.c (struct command_switch): Remove trailing
+ commas from enums.
+
+ * commands.c (execute_file_commands): Remove unused variables.
+ * commands.h: Declare chop_commands.
+ * make.h: Declare uniquize_deps.
+ * main.c (main): Remove unused variable.
+ (decode_switches): Remove unused label.
+ * remake.c: Include "ar.h" for ar_parse_name decl.
+ * implicit.c (try_implicit_rule): Remove unused variable.
+ * function.c (expand_function: `shell'): Declare fork, pipe.
+ * ar.c: Declare ar_name_equal.
+
+ * GNUmakefile: If using gcc, add warning flags to CFLAGS.
+
+ * remake.c: Remove decl of ar_member_date, since it's done in make.h.
+
+ * remake.c (f_mtime): For ar refs, allow the archive to be found via
+ VPATH search if we're searching, and change the ar ref accordingly.
+
+ * ar.c (ar_parse_name): New global fn to parse archive-member
+ references into the archive and member names.
+ (ar_member_date, ar_touch): Use it.
+ * make.h: Declare it.
+
+ * remake.c (f_mtime): After doing rename_file, do check_renamed instead
+ of assuming rename_file will always set FILE->renamed (which it won't).
+
+ * vpath.c (selective_vpath_search): Only accept prospective files that
+ don't actually exist yet are mentioned in a makefile if the file we are
+ searching for isn't a target.
+
+Wed Jul 4 04:11:55 1990 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * remake.c (update_goal_chain): Do check_renamed after calling
+ file_mtime.
+ (check_dep): Ditto after update_file.
+
+ * file.c (rename_file): Prettied up long message for merging cmds.
+
+ * remake.c (update_file_1): Get each dep file's modtime, and allow for
+ it being renamed, before checking for a circular dep, since a renaming
+ may have introduced one.
+
+Tue Jul 3 18:15:01 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * ar.c (ar_touch): Don't free ARNAME since enter_file holds onto the
+ storage.
+
+ * function.c (string_glob): Don't leave a trailing space.
+
+ * read.c (do_define): Allow leading whitespace before `endef'.
+
+Mon Jul 2 14:10:16 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * implicit.c (pattern_search): No longer take NAME arg. Instead take
+ ARCHIVE flag. If ARCHIVE is nonzero, FILE->name is of the form
+ "LIB(MEMBER)"; rule for "(MEMBER)" is searched for, and LASTSLASH is
+ set to nil. Since NAME was only non-nil when it was the archive member
+ name passed by try_implicit_rule, this change easily allows turning off
+ LASTSLASH checking for archive members without excessive kludgery.
+ (try_implicit_rule): Pass ARCHIVE flag instead of file name.
+
+ * Version 3.58.5.
+
+ * commands./c (set_file_variables): Don't kill last char of $(^D) elts.
+
+Sat Jun 30 00:53:38 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * ar.c (ar_member_date): Don't free ARNAME since enter_file holds onto
+ the storage.
+
+ * arscan.c (ar_scan) [sun386 && PORTAR == 1]: Treat like USGr3.
+
+Wed Jun 27 14:38:49 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * main.c (main): Put a newline on the debugging message when deciding
+ not to remake a makefile to avoid a possible loop.
+ Only decide not to remake makefiles that have commands (as well as
+ being targets and having no deps).
+
+Fri Jun 22 12:35:37 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * default.c (default_variables): Define `LINK.s' and `LINK.S'.
+ (default_suffix_rules): Define .S.o rule.
+
+ * job.c (construct_command_argv): If we decide to go the slow route,
+ free all storage for the chopped args.
+ (start_job): Free the argument list's storage correctly.
+ construct_command_argv only allocates ARGV and ARGV[0].
+
+Tue Jun 19 18:27:43 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.58.4.
+
+Fri Jun 15 21:12:10 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * glob.c: New version from ai-lab which doesn't do [^abc].
+
+Thu Jun 7 00:30:46 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * dir.c: Copied dirent vs direct et al mess from glob.c.
+
+ * glob.c: Replaced with updated version from djm.
+ * glob.c: Check macro DIRENT instead of _POSIX_SOURCE for <dirent.h>.
+ __GNU_LIBRARY__ implies DIRENT and STDC_HEADERS.
+
+Thu May 31 22:19:49 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * vpath.c (vpath_search): Don't stop the loop if a pattern matches but
+ the search fails. All matching patterns have their paths searched
+ (like it says in the manual).
+
+ * make.texinfo (Rules: Directory Search: Selective Search): Say that
+ multiple `vpath' directives with the same pattern DO accumulate, not
+ supersede earlier ones.
+
+ * vpath.c (print_vpath_data_base): Increment the count of vpaths on
+ each loop iteration, rather than letting it stay zero.
+
+ * Version 3.58.3.
+
+ * job.c (block_children, unblock_children): Made static.
+ (push_children_blocked_p, pop_children_blocked_p): New functions to
+ push and pop whether children are blocked or not.
+ * job.h: Declare push_children_blocked_p, pop_children_blocked_p and
+ not block_children, unblock_children.
+ * commands.c (fatal_error_signal), job.c (wait_for_children, new_job,
+ child_execute_job), main.c (main, log_working_directory): Use sequences
+ of push_children_blocked_p (1) and pop_children_blocked_p () instead of
+ explicitly blocking and unblocking children.
+ * function.c (expand_function: `shell'): Don't unblock children. The
+ push-pop sequence in wait_for_children makes it unnecessary.
+
+Tue May 29 21:30:00 1990 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * read.c (do_define): Don't include the last newline in the definition.
+
+ * function.c (expand_function: `shell'): Call construct_command_argv
+ before forking and don't fork if it returns nil. Free the argument
+ list's storage before finishing.
+
+ * job.c (start_job): Free the storage for the child's argument list
+ in the parent side of the fork after the child has been spawned.
+
+ * job.c (start_job): If construct_command_argv returns nil, go to the
+ next command line.
+
+ * job.c (construct_command_argv): Use the shell if the command contains
+ an unterminated quote.
+
+Wed May 23 19:54:10 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.58.2.
+
+ * read.c (read_makefile): Parse "override define" correctly.
+
+Thu May 17 15:25:58 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * arscan.c [USG]: Don't declare memcpy and memcmp. <memory.h> should
+ do this anyway (and lack of declarations is harmless).
+
+ * remote-customs.c: Renamed to remote-cstms.c for System V.
+ * remote.c [CUSTOMS]: Changed accordingly.
+
+Sun May 13 14:38:39 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * GNUmakefile: Use same cmds for doc tar.Z as for dist tar.Z (so the
+ contents go in make-N.NN).
+
+Thu Apr 26 19:33:25 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.58.1.
+
+Wed Apr 25 20:27:52 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * job.c (init_siglist): Don't do SIGUSR1 and SIGUSR2 if they are the
+ same as SIGIO and SIGURG (true on Cray).
+
+Tue Apr 24 20:26:41 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * arscan.c (ar_scan): Do behavior for PORTAR == 1 and USGr3 also
+ #ifdef APOLLO.
+
+Wed Apr 11 10:00:39 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * job.c (exec_command): Set the effective GID to the real GID. Somehow
+ this code got lost.
+
+ * implicit.c (pattern_search): Use the right index variable when
+ seeing if we need to expand FILE->also_make.
+
+Sun Mar 4 09:18:58 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.58.0.
+
+ * remake.c (remake_file): Treat non-targets without commands under -t
+ the same as anything else without commands.
+
+Sat Feb 24 17:46:04 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * default.c (default_variables: PREPROCESS.S): Removed $< from defn.
+
+ * main.c (main): Ignore arguments that are the empty string, rather
+ than feeding them to enter_file and barfing therein.
+
+Wed Feb 14 16:28:37 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * main.c (main): Call construct_include_path after doing chdirs.
+
+Thu Feb 8 13:43:44 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.58.
+
+Sat Feb 3 22:06:55 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.57.7.
+
+ * make.texinfo (Implicit: Catalogue of Rules): For RCS, noted that
+ working files are never overwritten by the default rule.
+
+Thu Feb 1 17:27:54 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * rule.c (count_implicit_rule_limits): Redid loop control to not run
+ twice on freed rules.
+
+ * GNUmakefile: Made `.dep' files be architecture-specific too.
+
+ * main.c (main, log_working_directory) [USG]: Block children around
+ calls to `getwd' (actually `getcwd' on USG), because that function
+ sometimes spawns a child running /bin/pwd on USG.
+
+Tue Jan 30 14:02:50 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * function.c (subst_expand): Pay attention to SUFFIX_ONLY, putz.
+
+Wed Jan 24 21:03:29 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * make.man: Fixed repeated word.
+
+ * make.texinfo (Missing): Reworded a buggy sentence.
+
+Mon Jan 22 12:39:22 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * main.c (print_version): Added 1990 to copyright notice.
+
+ * Version 3.57.6.
+
+Sat Jan 20 11:52:01 1990 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * file.c (rename_file): Don't free the storage for the old name, since
+ it might not have been malloc'd.
+
+ * job.c (construct_command_argv): Call
+ allocated_variable_expand_for_file instead of variable_expand_for_file
+ to expand `$(SHELL)'.
+
+ * make.texinfo (Bugs): Change address from roland@wheaties.ai.mit.edu
+ to roland@prep.ai.mit.edu.
+
+Tue Jan 16 19:22:33 1990 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.57.5.
+
+Sun Jan 14 16:48:01 1990 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * job.c (start_job): Only call wait_to_start_job for the first command
+ line in each sequence.
+
+Thu Jan 4 14:27:20 1990 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * load.c [LDAV_BASED] (wait_to_start_job): Loop while job_slots_used >
+ 0, not > 1.
+
+ * job.c (search_path): Don't return a pointer to local storage.
+ Allocate data space for the pathname instead.
+
+ * function.c (expand_function: `shell'): Don't write garbage if the
+ child wrote no output.
+
+Wed Jan 3 15:28:30 1990 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.57.4.
+
+ * file.h (struct file): New member `renamed', a `struct file *' that is
+ the place this file has been renamed to (or nil).
+ (check_renamed): Macro to check for a file having been renamed.
+ Dereferences the renaming and sets the given variable.
+ * file.c (rename_file): Completely rewritten. Renames in place if
+ possible, or moves FILE to a different hash bucket if there is no
+ existing file with the new name. If there is an existing file with the
+ new name, FILE is merged into it and FILE->renamed is set to point to
+ it.
+ * variable.c (merge_variable_sets): New fn to merge two variable sets.
+ (merge_variable_set_lists): New fn to merge two variable set lists.
+ * variable.h: Declare merge_variable_set_lists.
+ * remake.c (update_file_1, check_dep): Run `check_renamed' after
+ calling file_mtime, check_dep.
+ (update_file): Same after update_file_1.
+ (update_goal_chain, update_file_1, check_dep): Same after update_file.
+
+ * read.c (uniquize_deps): New fn, broken out of record_files, to remove
+ duplicate deps from a chain.
+ (record_files): Use it.
+ * implicit.c (pattern_search): Use uniquize_deps.
+
+ * file.h (file_mtime_1): New macro, like file_mtime, but take second
+ arg, passed to f_mtime.
+ (file_mtime): Implement as file_mtime_1 (file, 1).
+ (file_mtime_no_search): New macro: file_mtime (file, 0).
+ * remake.c (f_mtime): Take new arg SEARCH. Only do VPATH and `-lNAME'
+ searching if it is nonzero.
+ * main.c (main): Use file_mtime_no_search for makefiles.
+ * remake.c (update_goal_chain): Use file_mtime_no_search if MAKEFILES.
+
+ * main.c (printed_version): New variable, init'd to zero.
+ (print_version): Set it to nonzero before returning.
+ (die): If -v and !printed_version, call print_version before clean up
+ and death.
+
+ * main.c (log_working_directory): Keep track of whether or not the
+ "Entering" message has been printed, and return without printing the
+ "Leaving" message if not.
+
+ * main.c (decode_switches): Don't complain about missing args before
+ checking for a noarg_value elt in the command_switch structure.
+
+Tue Jan 2 15:41:08 1990 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.texinfo (Commands: Recursion: Options/Recursion): Document
+ special case of -j.
+
+ * make.texinfo, main.c, job.c: Changed copyright notices to include
+ 1990.
+
+ * make.texinfo (Top): Fixed introductory paragraph, which said that
+ `make' itself (instead of the manual) has various chapters.
+ (Variables: Advanced: Substitution Refs): When pxref'ing about
+ `patsubst', use node `Text Functions', not `Functions'.
+ Add an xref about `patsubst' after description of $(var:a%b=c%d).
+ (Functions: Syntax of Functions): Explain why mixing delimiters in
+ function/var refs is unwise. Clarify fn arg evaluation order.
+ (Options): Reworded sentence about `-e'.
+ (Implicit: Implicit Variables): Don't say `RM' is unused.
+ Say the dflt values for the flag vars is empty unless otherwise noted,
+ since some have defaults.
+ (Implicit: Pattern Rules: Pattern Examples): Clarified use of $< and $@
+ in first example.
+ (Implicit: Last Resort): Don't say the .DEFAULT example creates files
+ "silently". It's automatic, but not silent.
+ (Implicit: Search Algorithm): Fixed confusing ungrammatical sentence
+ for item 5.1.
+ (Archives: Archive Update): Added missing `next' pointer.
+ (Archives: Archive Symbols): Note that GNU `ar' deals with this
+ automatically.
+
+ * job.c (search_path): New fn, to search for an executable file in a
+ search path (broken out of exec_command).
+ (exec_command): Take fourth arg, the shell program to use (if
+ necessary). Use search_path for the program, and the shell program.
+ Pass args "file args ..." to shell program (with no -c), where FILE is
+ the full pathname of the program (script) to be run.
+ (child_execute_job): Pass shell program to exec_command.
+ * main.c (main): Ditto.
+
+ * main.c (main): Don't write a message if exec_command returns, because
+ it will never return.
+
+Fri Dec 22 16:19:58 1989 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * default.c (default_variables: "LINK.cc"): Use $(C++FLAGS) instead of
+ $(CFLAGS).
+
+Wed Dec 20 09:58:48 1989 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * job.c (new_job): If start_job set the child's `command_state' to
+ `cs_finished', call notice_finished_file.
+
+Sun Dec 17 19:45:41 1989 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * Version 3.57.3.
+
+Wed Dec 13 17:57:12 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * rule.c (convert_to_pattern): Accept files with dependencies as
+ suffix rules.
+
+Thu Nov 30 15:47:13 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.57.2.
+
+ * function.c (expand_function: `shell'): Don't clobber BUFFER and then
+ try to free it.
+
+ * remake.c (update_file_1): Took code to force remake of nonexistent
+ deps out of #if 0, and changed the test to nonexistent non-intermediate
+ deps. In version 4, I think removing this test completely will
+ implement the new feature that if a: b and b: c and c is newer than a,
+ b need not be remade.
+
+Sun Nov 26 16:12:41 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * compatMakefile (load.o, remote.o): Use $*.c instead of explicit file
+ names so that using VPATH works.
+
+Tue Nov 21 14:57:18 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.57.1.
+
+Fri Nov 10 03:28:40 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remake.c (check_dep): Set *MUST_MAKE_PTR if FILE does not exist after
+ being updated. (The exact opposite test was here before; why???)
+ (update_file_1): Set a dep's `changed' member after updating it if it
+ is phony and has commands (because they will then always be executed).
+
+Thu Nov 9 13:47:12 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * load.c [UMAX]: #ifdef UMAX_43 include different headers for the
+ `inq_stats' call.
+ * compatMakefile (LOAD_AVG): Document UMAX_43.
+
+ * Version 3.57.0.
+
+ * commands.c (chop_commands): New function to chop commands into lines.
+ * job.c (new_job): Break that code out, and call chop_commands.
+ * remake.c (remake_file): Call chop_commands before looking at
+ FILE->cmds->any_recurse.
+
+ * make.texinfo (Running: Goals): Don't say that the default target
+ won't be taken from an included makefile.
+
+ * remake.c (update_file_1): #if 0 out setting MUST_MAKE if a dep
+ doesn't exist.
+
+Fri Nov 3 15:53:03 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.57.
+
+ * variable.c (try_variable_definition): Don't calculate useless value.
+
+ * main.c (define_makeflags): Fixed -j propagation.
+
+ * commands.c (execute_file_commands): Removed unused variable.
+
+Sun Oct 29 11:11:15 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (execute_file_commands): If the commands are empty, call
+ notice_finished_file before returning.
+
+Sat Oct 28 23:06:32 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remake.c (update_file_1): Don't always update a target that has no
+ deps. Only do this for double-colon targets.
+
+Wed Oct 25 16:36:16 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * main.c (main) [hpux]: hpux == HPUX.
+ * compatMakefile (defines): Document that HPUX should be defined.
+
+Tue Oct 24 19:19:48 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.8.
+
+ * job.c (exec_command): Fixed what mode bits are checked.
+
+ * remake.c (update_file_1): "No cmds and no deps actually changed"
+ loses if ! FILE->is_target.
+
+ * make.texinfo (Variables: Setting): Don't say that spaces after a
+ variable definition are ignored (since they aren't).
+
+Mon Oct 23 14:34:23 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.7.
+
+ * remake.c (update_file_1): If, after being updated, any dependency
+ does not exist, remake the target.
+
+ * remake.c (update_file_1): Always update if FILE has commands but no
+ deps.
+
+ * commands.c (execute_file_commands): If we return early because there
+ are no commands, set FILE->updated.
+
+Thu Oct 19 18:47:37 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * arscan.c (ar_scan) [M_XENIX]: Don't run atoi or atol on the
+ `struct ar_hdr' members that are int or long int on Xenix.
+
+Sat Oct 14 10:43:03 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * arscan.c (ar_scan): Cosmetic clean ups.
+ (ar_name_equal): New function to compare names, handling truncated
+ member names and special `.o' truncation.
+ (ar_member_pos): Use ar_name_equal.
+ * ar.c (ar_member_date_1): Use ar_name_equal.
+
+ * Version 3.56.6.
+
+ * file.h (struct file): Made `update_status' a `short int', and moved
+ it before `command_state' so the bitfields can be packed better.
+
+ * remake.c (files_remade): Made global.
+ (notice_finished_file): Don't increment files_remade.
+ * job.c (new_job): Do.
+
+ * job.c (start_job): Don't return a value. Always set
+ CHILD->file->command_state to either cs_running or cs_finished.
+ (new_job, child_handler): Don't expect start_job to return a value.
+ Instead, look at the file's command_state.
+
+ * commands.c (chop_commands): Merged into job.c (new_job).
+ * commands.h: Don't declare chop_commands.
+
+ * job.c (start_job): Made static.
+ (new_job): New function to create a `struct child' and call start_job.
+ (free_child): New function to free a `struct child'.
+ (child_handler, new_job): Call it.
+ * job.h: Don't declare start_job. Do declare new_job.
+ * commands.c (execute_file_commands): Call new_job.
+
+ * commands.c (execute_file_commands): Don't set FILE->update_status if
+ start_job fails.
+
+ * function.c (expand_function): Don't use `reading_filename' and
+ `reading_lineno_ptr' if they're nil.
+
+Fri Oct 13 18:16:00 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * read.c (find_semicolon): New function to look for an unquoted ; not
+ preceded by an unquoted # in a string.
+ (read_makefile): Call it before expanding the line. If it finds a ;,
+ cut the line short there before expanding it. If not, call it again
+ after expanding.
+
+ * commands.c (execute_file_commands): Don't check FILE->command_state.
+ We won't get called unless it's cs_not_started.
+
+ * read.c (read_makefile): Call collapse_line on the variable-expanded
+ rule line after checking for ; and #.
+
+ * job.c (start_job): When there are no more commands, always return 0.
+ * commands.c (execute_file_commands): Don't put the new child in the
+ `children' chain unless FILE->command_state is cs_running.
+
+ * read.c (read_makefile): Rewrote ;-handling to only do it once (why
+ did I do it twice??) and to check for a # before the ;.
+
+ * job.c (start_job): Set CHILD->file->update_status to 0 when we run
+ out of commands. Set it to 1 before returning failure.
+ (child_handler): Don't set C->file->update_status to 0 when start_job
+ returns success and commands are not running.
+
+ * read.c (read_makefile): If there is a # before the ; for commands,
+ forget the ; and commands.
+
+Thu Oct 12 15:48:16 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * job.c (child_execute_job): Pass -c to the shell.
+
+Wed Oct 11 18:41:10 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.5.
+
+ * main.c (define_makeflags): Cleaned up to keep better track of dashes
+ written, etc.
+
+ * function.c (expand_function: `shell'): When converting newlines to
+ spaces in output, search with `index' calls rather than a simple loop.
+
+ * main.c (main): Make sure stdout is line-buffered.
+
+ * main.c (decode_switches): Always check for missing switch arg.
+
+Mon Oct 9 17:17:23 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.4.
+
+Sat Oct 7 00:32:25 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (set_file_variables): #ifdef NO_ARCHIVES, still set $@ and
+ $%.
+
+ * commands.c (set_file_variables): Include a trailing slash in the
+ directory variables (@D, etc.).
+
+ * job.c (child_handler): Call notice_finished_file after changing a
+ child's state to `cs_finished'.
+ * remake.c (update_file_1): Don't call notice_finished_file if
+ FILE->command_state == cs_finished.
+
+Wed Oct 4 16:09:33 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.3.
+
+Tue Oct 3 21:09:51 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * read.c (read_all_makefiles): When setting elements of MAKEFILES from
+ the contents of read_makefiles, make sure we're using the right
+ element.
+
+ * dir.c, glob.c [USGr3 || DIRENT]: Don't define d_ino as d_fileno.
+
+ * Version 3.56.2.
+
+ * remake.c (update_file_1): Return zero after calling remake_file if
+ FILE->command_state != cs_finished. Test update_status thoroughly.
+
+ * commands.c (execute_file_commands): Don't call notice_finished_file.
+
+ * remake.c (remake_file): Return immediately after calling
+ execute_file_commands.
+
+Sat Sep 30 14:57:05 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.1 (alpha).
+
+ * file.h (struct file): Made `update_status' not be a bitfield, since
+ some broken compilers don't handle it right.
+
+ * function.c (expand_function: `join'): Don't clobber the pointers and
+ then try to free them.
+
+ * job.c (exec_command): Fixed & vs = precedence problem.
+
+Thu Sep 28 17:29:56 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remake.c (update_file_1): Fixed typo in debugging output.
+
+ * remake.c (library_file_mtime): Search for /usr/local/lib/libLIB.a
+ after /usr/lib/libLIB.a.
+
+Tue Sep 26 16:07:58 1989 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * read.c (conditional_line): For `ifeq (a, b)', swallow space after the
+ comma.
+
+Sun Sep 24 13:25:32 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * function.c (patsubst_function): If BY_WORD and the match is not a
+ full word, update the text pointer correctly.
+
+ * function.c (expand_function: `word'): Don't lose track of the second
+ arg's expansion and free something else instead.
+
+Fri Sep 22 16:15:29 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.56.
+
+Thu Sep 21 14:28:42 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * main.c (main): Make an array of the mtimes of the makefiles before
+ updating them, and compare their file_mtimes against this later. Don't
+ re-exec if a makefile was successfully updated but didn't change. If a
+ makefile failed to be remade and no longer exists, die. If a makefile
+ failed to be remade, but changed anyway, re-exec. If a makefile failed
+ to be remade, but is unchanged, continue on.
+
+Wed Sep 20 18:02:07 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.55.6.
+
+ * implicit.c (pattern_search): Maintain an array CHECK_LASTSLASH of the
+ CHECK_LASTSLASH flag values used to match each member of TRYRULES.
+ When making FILE->stem, if CHECKED_LASTSLASH[FOUNDRULE], prepend the
+ part of FILENAME before LASTSLASH.
+
+Tue Sep 19 17:44:08 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * dir.c (dir_file_exists_p): Check for FILENAME being nil before
+ checking for it being "".
+
+ * main.c (define_makeflags): Fixed test for whether a flag/flag_off
+ option was non-default. Also changed to generate a string that Unix
+ Make will grok (except for FP/int values and new flags).
+
+ * job.c (child_execute_job): Don't use the shell's -c option.
+ Also fixed an off-by-one bug in the ARGV -> shell arg list copying.
+
+Mon Sep 18 15:17:31 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.55.5.
+
+ * read.c (parse_file_seq): Check the beginning of the file name for a
+ `./', not the two chars after the end of the name (Q rather than P).
+
+ * job.c (child_execute_job): Include all of ARGV in the arg list for
+ the shell.
+
+ * main.c (define_makeflags): Don't include floating and positive_int
+ options in !PF.
+
+ * job.c (exec_command): Set the effective gid to the real gid before
+ execing.
+
+ * job.c (child_execute_job): Don't clobber the arg list when execing
+ the shell.
+
+Sun Sep 17 15:27:19 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * main.c (define_makeflags): Moved all the checking inside the switch.
+
+ * load.c [LDAV_BASED] (load_average): When we can't get the load
+ average, return zero instead of running off the end.
+
+ * file.c: Include variables.h.
+ * job.c: Declare dup2 and {block,unblock}_remote_children.
+ * file.h: Declare f_mtime.
+ * job.c: Don't declare construct_command_argv, since job.h does.
+ * function.c, main.c, load.c, remake.c: Include job.h.
+ * load.c [LDAV_BASED] (load_average): Declare nlist.
+ * variable.h: Declare print_file_variables.
+ * job.c [!USG]: Don't declare sigsetmask.
+ [!USG]: Declare getdtablesize.
+ Don't declare load_average. Do declare wait_to_start_job.
+ Declare vfork, gete[gu]id, execve.
+ * commands.c: Declare remote_kill, getpid.
+ * make.h: Declare kill, exit, sigblock, pipe, close, ctime, open,
+ lseek, read.
+ * make.h [not USG]: Declare sigsetmask.
+ * job.h: Declare wait_for_children and {block,unblock}_children.
+
+ * dir.c (dir_file_exists_p): If FILENAME is nil, read in the whole
+ directory.
+ (find_directory): When we want to read in the whole directory, call
+ dir_file_exists_p with nil instead of "".
+
+ * file.h (struct file), job.h (struct child),
+ variable.h (struct variable): Use bitfields for flags.
+ * make.h (ENUM_BITFIELD): If GCC or #ifdef ENUM_BITFIELDS, define as
+ :BITS, else empty.
+ * compatMakefile (defines): Document ENUM_BITFIELDS.
+
+Sat Sep 16 12:38:58 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.55.4 (alpha).
+
+ * GNUmakefile (dist): Depend on default and doc.
+
+ * load.c [LDAV_BASED]: Include <nlist.h> rather than <a.out.h>; #ifdef
+ NLIST_NAME_UNION, use n_un.n_name instead of n_name.
+ * compatMakefile (LOAD_AVG): Document NLIST_NAME_UNION.
+
+ * job.c [USG-ish]: Don't redefine WIF{SIGNALED,EXITED} if they're
+ already defined.
+
+Fri Sep 15 13:59:42 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * glob.c, dir.c [USGr3 or DIRENT]: If neither d_ino, nor d_fileno is
+ defined, define d_ino as d_fileno.
+
+Thu Sep 14 18:29:38 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * job.c: Don't declare exec_command static.
+
+ * make.texinfo (Name Index): Changed title to include directives.
+
+ * Version 3.55.3 (alpha).
+
+ * make.texinfo (Running: Options): Document -e.
+
+ * main.c (main): Always give imported environment variables origin
+ `o_env'.
+ * variable.c (define_variable_in_set): Under -e, if ORIGIN, or an
+ existing variable's origin, is `o_env', make it `o_env_override'.
+
+ * load.c: Use the symbol KERNEL_FILE_NAME instead of KERNEL_FILE.
+ * compatMakefile: Changed the comment for `LOAD_AVG' accordingly.
+
+Thu Sep 7 16:46:26 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.55.2 (alpha).
+
+ * variable.c (print_variable_set), rule.c (print_rule_data_base),
+ file.c (print_file_data_base): If NO_FLOAT is defined, don't use
+ floating-point for printing statistics.
+ * compatMakefile (defines): Document NO_FLOAT.
+
+ * make.h (HASH): New macro to add the hashing value of one char to a
+ variable.c.
+ * file.c (lookup_file, enter_file, rename_file): Use it.
+ * dir.c (find_directory, dir_file_exists_p, file_impossible_p): Ditto.
+ * variable.c (define_variable_in_set, lookup_variable): Same here.
+
+ * variable.c, file.c, dir.c: Don't define *_BUCKETS if they are already
+ defined.
+
+ * compatMakefile (defines): Added comment about defining NO_ARCHIVES.
+ (ARCHIVES, ARCHIVES_SRC): New variables for {ar,arscan}.[oc].
+ (objs, srcs): Use $(ARCHIVES) and $(ARCHIVES_SRC).
+ * commands.c (set_file_variables), dir.c (file_exists_p),
+ remake.c (touch_file, name_mtime), implicit.c (try_implicit_rule,
+ pattern_search), make.h: If NO_ARCHIVES is #defined, don't do any
+ archive stuff.
+
+ * commands.c (set_file_variables): Don't kill the last char of
+ directory names in $([@*<%?^]D).
+
+Wed Sep 6 15:23:11 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * default.c (default_terminal_rules {%:: %,v}, {%:: RCS/%,v}): Don't
+ run co if the target exists.
+
+ * glob.c (glob_match): [!xyz], rather than [^xyz], means none of [xyz].
+
+ * glob.c: Misc minor cosmetic changes.
+
+Tue Sep 5 14:49:56 1989 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * load.c [LDAV_BASED] (load_average): Check for == -1, rather than < 0
+ to see if lseek fails. On some systems, `avenrun' is at an offset >
+ (2**31)-1, and lseek succeeds, returning a negative value.
+
+Mon Sep 4 11:07:58 1989 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * rule.c (new_pattern_rule): Return `int' instead of `void': nonzero if
+ the passed rule was used, zero if not.
+ (install_pattern_rule): Pay attention to the return from
+ new_pattern_rule, and don't set the rule's `terminal' flag or give it
+ commands unless it's used.
+ (create_pattern_rule): Same idea.
+
+ * dir.c (find_directory): Removed unused variable.
+
+ * commands.c (execute_file_commands): Removed unused variable.
+
+ * read.c (record_files): Don't use NAME after freeing it.
+
+Sat Sep 2 00:33:19 1989 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * Version 3.55.1 (alpha).
+
+ * function.c (string_glob): Don't add spaces after file names that
+ aren't added. (Also means don't add spaces without checking the size
+ of the buffer.)
+
+ * remake.c (update_goal_chain): Don't remove makefiles with cmds and no
+ deps from the chain.
+ * main.c (main): Do it here, before calling update_goal_chain.
+
+ * remake.c (update_goal_chain): When updating fails, change STATUS even
+ if MAKEFILES is set. Also stop remaking when updating fails if not
+ under -k and MAKEFILES is not set.
+
+ * remake.c (remake_file, update_file_1, notice_finished_file),
+ commands.c (execute_file_commands), make.h, commands.h: The functions
+ remake_file, notice_finished_file, and execute_file_commands no longer
+ return values, and their callers no longer expect values returned.
+
+ * remake.c (notice_finished_file): Don't set FILE's modtime to now if
+ it is a non-target with no commands.
+
+Fri Sep 1 00:04:39 1989 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * read.c (read_all_makefiles): After freeing each element on MAKEFILES,
+ replace it with the name stored in read_makefiles by read_makefile.
+
+ * remake.c (update_file_1): Don't decide not to remake if FILE has no
+ cmds and no deps actually changed if FILE doesn't have any deps.
+
+ * file.c (remove_intermediate): Remove precious files that also have
+ the `dontcare' flag set.
+
+ * remake.c (update_file_1): Don't always remake if FILE has cmds but no
+ deps; only if FILE is double-colon. (I don't know why this should be
+ done for double-colon targets, but that's what Unix make does.)
+
+ * load.c [LDAV_BASED] (load_average): Write error messages if the
+ various system calls fail. Keep track of if we've failed before.
+ The first time we fail, write a message saying -l won't be enforced.
+ The first time we succeed after having failed, write a message saying
+ -l will be enforced again.
+
+ * remake.c [USG]: Don't #include <sys/file.h>
+
+ * load.c [generic Unix LDAV_BASED]: #include <fcntl.h> #ifdef USG,
+ else <sys/file.h> instead.
+
+ * job.c [USG && !USGr3 && !HAVE_DUP2]: Remove redundant
+ #include <errno.h> and declaration of `errno'.
+ [...] (dup2): Fixed so it won't always lose.
+
+ * default.c (default_suffix_rules: .texinfo.dvi): Copy, rather than
+ move, the aux and index files, so the TeX run can use them.
+
+ * compatMakefile: Remove redundant comment.
+
+ * load.c [generic Unix LDAV_BASED]: Include <a.out.h> instead of
+ <nlist.h>, since the `struct nlist' declaration in <nlist.h> varies
+ more than the one in <a.out.h>.
+ (load_average): Use the `n_un.n_name' field of the `struct nlist',
+ since the <a.out.h> declaration uses the union.
+
+ * main.c (main): For the temporary files made for stdin makefiles, set
+ the `intermediate' and `dontcare' flags.
+ * file.c (remove_intermediates): Don't print any messages for files
+ whose `dontcare' flag is set. (The only files that will be
+ intermediate and `dontcare' will be the temporary files made for stdin
+ makefiles.)
+
+ * job.c (exec_command): Made global.
+ * job.h: Declare it.
+ * main.c (main): Use exec_command when re-execing.
+
+ * make.h: Declare environ.
+ * make.c: Don't.
+
+ * job.c (child_execute_job): New function to perform everything done in
+ the child side of a fork (for a job or `shell' function).
+ (start_job): Call it.
+ * job.h: Declare construct_command_argv and child_execute_job.
+ * function.c (expand_function: `shell'): Use child_execute_job.
+
+Thu Aug 31 18:42:51 1989 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * function.c (expand_function: `shell'): Remove a trailing newline
+ instead of turning it into a space.
+
+ * main.c (main): Do init_siglist #ifdef HAVE_SIGLIST.
+
+ * job.c [WTERMSIG || (USG && !HAVE_SYS_WAIT)]: Test each W* macro
+ separately and define all those that aren't defined.
+
+Sat Aug 26 15:13:21 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * ar.c (ar_name): Return zero for `(foo)'.
+
+ * Version 3.55.
+
+ * make.texinfo (Rules: Multiple Targets): Make this node's `next'
+ pointer point to `Static Pattern'.
+ * make.texinfo (Makefiles: MAKEFILES Variable): Make this node's `prev'
+ pointer point to `Makefile Names'.
+
+ * make.1: Renamed to make.man.
+ * compatMakefile: Define `mandir' and `manext'.
+ (install): Depend on $(mandir)/make.$(manext).
+ ($(mandir)/make.$(manext)): Depend on make.man and copy it to $@.
+ ($(bindir)/make): Use `make' rather than $<; so Unix make can grok it.
+
+Thu Aug 24 03:35:48 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * variable.c (target_environment): Allow variables that start with
+ underscores.
+
+Wed Aug 23 22:50:32 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * variable.c (target_environment): Reject variables that don't start
+ with letters.
+
+Tue Aug 22 04:14:29 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * GNUmakefile (make-$(version).tar.Z): Put make.1 (the Unix manual
+ page) in the tar file.
+
+ * variable.c (target_environment): Don't write variables with origin
+ o_default (i.e., ones from default.c).
+ * make.texinfo (Commands: Recursion: Variables/Recursion): Document
+ that default variables are not put in the environment.
+
+ * remake.c (update_file_1): Remake all targets with commands but no
+ deps.
+
+Sat Aug 19 06:03:16 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (update_file_1): In the final loop, set the deps'
+ `changed' members if they are newer than FILE.
+
+ * remake.c (update_goal_chain): Under -d, print a message if we decide
+ not to remake a makefile so as to avoid a possible infinite loop.
+
+Fri Aug 18 20:30:14 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (remake_file): Cleaned up.
+
+ * commands.c (execute_file_commands): If the commands are empty, set
+ FILE->update_status to zero before returning.
+
+ * remake.c (notice_finished_file): Set `last_mtime' fields to zero
+ instead of calling name_mtime; file_mtime will do that later if anybody
+ cares.
+
+Thu Aug 17 10:01:11 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * make.texinfo (Rules: Wildcards: Wildcard Examples): Give this node a
+ `prev' pointer.
+
+ * Version 3.54.9 (alpha).
+
+ * make.texinfo: Fixed some @nodes.
+
+ * remake.c (check_dep): Don't set *MUST_MAKE_PTR if FILE doesn't exist
+ after running update_file.
+
+ * remake.c (notice_finished_file): If FILE has no commands, pretend its
+ modtime is now.
+
+ * remake.c (update_file_1): In the loops that call update_file on the
+ deps, compare modtimes before and after (unless deps are still being
+ made) and set the deps' `changed' members. Do not set the `changed'
+ members in the loop that prints the newer/older debugging messages.
+ * remake.c (update_file_1): If no deps changed and FILE has no
+ commands, decide it doesn't need remaking.
+
+ * remake.c (update_file_1): Print a debugging message if we take
+ commands from default_file.
+
+ * make.texinfo (Rules: Directory Search: Selective Search): Removed
+ note about warning for `vpath' with a constant pathname, since it isn't
+ warned about anymore.
+
+ * remake.c (update_goal_chain): If MAKEFILES, remove makefiles which
+ are targets and have no deps.
+ * make.texinfo (Makefiles: Remaking Makefiles): Document that makefiles
+ will not be remade if they are targets but have no dependencies.
+
+Tue Aug 15 00:00:08 1989 Roland McGrath (roland at apple-gunkies.ai.mit.edu)
+
+ * remake.c (notice_finished_file): Increment files_remade for non-phony
+ files if they didn't exist before (even if they still don't).
+
+ * job.c: Include <errno.h> and declare errno.
+
+ * job.c (exec_command): If the execve fails with ENOEXEC (Exec format
+ error), return instead of exiting the child process.
+
+ * job.c (start_job): In the child side, if exec_command fails, try
+ using the shell.
+
+ * job.c (start_job): In the child side, call unblock_children instead
+ of sigsetmask.
+
+ * remake.c (notice_finished_file): Under -n or -q, always increment
+ files_remade for non-phony files.
+
+ * rule.c (intall_pattern_rule): Use find_percent.
+
+ * vpath.c (vpath_search): Pass the `percent' members to
+ pattern_matches.
+
+Mon Aug 14 23:30:24 1989 Roland McGrath (roland at apple-gunkies.ai.mit.edu)
+
+ * vpath.c (struct vpath): New member `percent', to hold a pointer into
+ the pattern where the % is.
+ (construct_vpath_list): Call find_percent on the pattern and set the
+ new `percent' member.
+ * read.c (read_makefile): Don't run find_percent on `vpath' directive
+ patterns.
+
+ * function.c (pattern_matches): Take new arg PERCENT, a pointer into
+ PATTERN where the % is. If PERCENT is nil, copy PATTERN into local
+ space and run find_percent on it.
+ (expand_function: `filter', `filter-out'): Pass new arg to
+ pattern_matches.
+ * read.c (record_files): Pass PATTERN_PERCENT to pattern_matches for
+ static pattern rules. Save the percent pointer into implicit rule
+ targets, and pass them to create_pattern_rule.
+ * rule.c (convert_to_pattern): Pass new arg to create_pattern_rule.
+ (create_pattern_rule): Take new arg TARGET_PERCENTS, nil or an array of
+ pointers into the corresponding elements of TARGETS, where the %s are.
+
+Sun Aug 13 00:29:19 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.8.
+
+ * README.templatate, README-doc.template: New files, turned into README
+ and README-doc to go into the two distribution tar files.
+ * GNUmakefile: Added a rule to edit the version number in
+ README.template and README-doc.template, producing README and
+ README-doc.
+
+ * remake.c (update_goal_chain): If -n or -q is in effect for a
+ makefile, and it got updated, don't change STATUS, so we can still
+ return -1 (meaning nothing was done). This avoids an infinite loop on
+ "make -n Makefile".
+
+Sat Aug 12 23:14:24 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (notice_finished_file): Treat -q the same as -n.
+
+ * remake.c (update_goal_chain): Fixed handling of return from
+ update_file. If -n or -q is in effect, ignore it.
+
+ * job.c (start_job): Don't test for -t. We should never get called in
+ that case.
+
+Fri Aug 11 04:09:14 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * function.c (expand_function): Removed unused variables.
+ (handle_function): Removed unused variable.
+
+ * main.c (main): Removed unused variable.
+
+Wed Aug 9 09:37:10 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.7.
+
+ * remake.c (notice_finished_file): If FILE's modtime actually changed,
+ increment files_remade.
+ (remake_file): Don't increment files_remade.
+
+ * remake.c (update_file): Don't print "up to date" messages for
+ phony files.
+
+ * job.c (child_handler): Don't set C->file->update_status to 1 if
+ start_job returns nonzero under -n or -t.
+
+ * expand.c (variable_expand): Count parens in $(foo:a=b) refs.
+
+ * main.c: Removed old declaration of `glob_tilde' (which hasn't existed
+ for a few months).
+
+Tue Aug 8 23:53:43 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * job.c (exec_command): Fixed to not ignore the last path component and
+ to do the right thing with an empty path.
+
+Fri Aug 4 15:58:19 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (library_file_mtime): Look for libLIB.a, not /libLIB.a.
+ Do VPATH search on libLIB.a, not /usr/lib/libLIB.a
+
+Thu Aug 3 20:42:00 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * job.c [HAVE_SYS_WAIT or not USG]: If WIFSIGNALED is not defined by
+ <sys/wait.h>, define it as (WTERMSIG != 0).
+
+Tue Aug 1 19:25:34 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (remake_file): If FILE has no commands and is a target,
+ don't set its time to now. The time gets reset by notice_finished_file
+ anyway, and it isn't needed since check_dep checks for nonexistence.
+
+ * Version 3.54.6.
+
+ * read.c (read_makefile): Don't read off the end of the string after an
+ `include'.
+
+ * job.c (exec_command): New function to search the path for a file and
+ execute it.
+ (start_job): Use exec_command rather than execvp.
+
+ * read.c (read_makefile): Expand `include' directive args before
+ parsing them. Allow trailing whitespace after filename.
+
+ * variable.c (target_environment): Put makelevel + 1, rather than
+ makelevel, in the `MAKELEVEL' envariable.
+
+Sat Jul 29 10:27:04 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * remake.c (notice_finished_file): Don't get the new modtime of phony
+ files.
+
+ * remake.c (remake_file): Run commands instead of touching under -t if
+ FILE->cmds->any_recurse is set.
+
+ * commands.h (struct commands): Add new member `any_recurse', to be set
+ nonzero if any `lines_recurse' element is nonzero.
+ * commands.c (chop_commands): Set the `any_recurse' member.
+
+ * commands.c (execute_file_commands): Split chopping of commands into
+ lines into new function chop_commands.
+ * commands.h: Declare chop_commands.
+
+ * read.c (read_makefile): Test for a line beginning with a tab after
+ checking for conditional lines, but before all other checks.
+
+Fri Jul 28 18:10:29 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * read.c (read_makefile): Match directives against collapsed line
+ and use that for their args.
+
+ * read.c (read_makefile): Warn about extra text after `include'.
+
+Tue Jul 25 14:34:25 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * make.texinfo (Rules: Directory Search: Selective Search): Fixed
+ example to use correct `vpath' syntax.
+
+Mon Jul 24 12:10:58 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.5.
+
+ * job.c (start_job): In the child side, unblock SIGCHLD.
+
+Fri Jul 21 18:25:59 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * make.h: Don't include <sys/types.h> #ifdef sun.
+
+Mon Jul 17 14:29:10 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * implicit.c (pattern_search): If ar_name (FILENAME), don't check for
+ directory names.
+
+ * job.c (wait_for_children): Changed "waiting for children" message to
+ "waiting for unfinished jobs".
+
+Fri Jul 14 13:17:13 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * load.c (load_average): Use an unsigned offset into kmem.
+
+Thu Jul 13 18:44:49 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * variable.c (pop_variable_scope): Don't free the head of the chain of
+ variables in each bucket twice.
+
+Tue Jul 11 06:45:24 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * GNUmakefile: Include COPYING in the doc tar file.
+
+ * variable.c, read.c, misc.c, job.c, function.c: Replace some identical
+ "for" loops with next_token or end_of_token calls.
+
+Mon Jul 10 16:55:08 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.4.
+
+ * compatMakefile: Documented new conditionals.
+
+ * job.c: Don't define sys_siglist if HAVE_SIGLIST is defined.
+ Don't define dup2 if HAVE_DUP2 is defined.
+
+ * job.c (child_handler): Interpret the return from start_job correctly.
+
+ * remake.c (update_file_1): Don't write "target not remade because of
+ errors" message under -n or -q.
+
+ * read.c: Declare getpwnam.
+
+ * glob.c: Use <dirent.h> if DIRENT is defined.
+ [USG]: Don't declare memcpy, since <memory.h> does.
+
+Fri Jul 7 20:53:13 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * misc.c (collapse_line): Copy the line over in the right place.
+
+Fri Jul 7 18:33:24 1989 Roland McGrath (fsf at void.ai.mit.edu)
+
+ * remake.c: Conditionalize inclusion of <sys/file.h> on not
+ USG, since HP-UX defines a `struct file' there.
+
+Fri Jul 7 12:11:30 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * job.c: If WTERMSIG is defined by <sys/wait.h>, define WAIT_T as int,
+ and don't define other macros; this covers HP-UX.
+ If WTERMSIG is not defined, use int or union wait based on USG and
+ HAVE_SYS_WAIT; this covers BSD and SysV.
+
+ * Version 3.54.3 (alpha).
+
+ * job.c [USG and not USGr3]: Include <errno.h> and declare errno.
+
+ * job.c (unblock_children [USG]): Declare child_handler.
+
+ * job.c: Renamed WRETCODE to WEXITSTATUS.
+ [HAVE_SYS_WAIT or not USG]: Undefine WTERMSIG, WCOREDUMP, and
+ WEXITSTATUS before defining them. The HP-UX <sys/wait.h> defines them.
+
+ * main.c (main): If there are no goals, fatal AFTER printing the data
+ base under -p.
+
+Thu Jul 6 22:43:33 1989 Roland McGrath (roland at apple-gunkies.ai.mit.edu)
+
+ * glob.c [USG]: #define rindex as strrchr.
+
+ * job.c [USG]: Include <sys/param.h> and #define getdtablesize() as
+ NOFILE.
+
+Wed Jul 5 09:36:00 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.2 (alpha).
+
+ * expand.c (variable_expand): When expanding recursive variable
+ references (${${a}}), use the correct delimiters in the constructed
+ variable reference.
+
+Mon Jul 3 18:29:26 1989 Roland McGrath (roland at apple-gunkies.ai.mit.edu)
+
+ * compatMakefile: Clear out and redefine the .SUFFIXES list because
+ silly Sun 4 make defines .cps.h.
+
+ * compatMakefile: Fix comment about -DNO_MINUS_C_MINUS_O.
+
+ * remake.c: Include <sys/file.h> for O_* on 4.2.
+
+ * commands.c: Define sigmask if it's not defined.
+
+Fri Jun 30 07:33:08 1989 Roland McGrath (roland at apple-gunkies.ai.mit.edu)
+
+ * remake.c (remake_file): Don't always increment files_remade.
+
+ * variable.c (push_new_variable_scope): Zero the new variable hash
+ table.
+
+Thu Jun 29 17:14:32 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * expand.c (variable_expand): When terminating the variable expansion
+ buffer, use variable_buffer_output instead of a simply zero store,
+ because the buffer may need to be enlarged.
+
+Wed Jun 28 16:53:47 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.54.
+
+ * default.c (default_suffixes): Added `.ln'.
+ (default_suffix_rules): Changed lint rules to use -C.
+
+Thu Jun 22 20:49:35 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * job.c (start_job): Set `environ' to CHILD->environment before execing
+ in the child process!
+
+Tue Jun 20 17:23:13 1989 Roland McGrath (roland at spiff.ai.mit.edu)
+
+ * compatMakefile: Put job.h and rule.h in `srcs'.
+
+ * Version 3.53.
+
+Mon Jun 19 16:25:18 1989 Roland McGrath (roland at spiff.ai.mit.edu)
+
+ * job.c (start_job): If there are no more commands, return nonzero
+ under -n or -t.
+
+ * compatMakefile (make): Pass `-f' to mv.
+
+ * GNUmakefile: If `ARCH' or `machine' is defined, make $(ARCH)/*.o and
+ $(ARCH)/make instead of *.o and make.
+
+ * function.c (string_glob): Don't try to use freed storage!
+
+ * read.c (readline): If there is only one byte of space in the buffer,
+ enlarge the buffer before reading more.
+
+ * arscan.c [M_XENIX]: Miscellaneous minor changes for Xenix.
+
+Sun Jun 18 13:07:45 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * GNUmakefile (depend): Split commands into two lines so they won't be
+ so long when variable-expanded.
+
+ * compatMakefile: Documented MINUS_C_MINUS_O meaning. The line
+ describing it got removed when the USG/wait stuff was documented.
+
+Sat Jun 17 22:56:54 1989 Roland McGrath (roland at hobbes.ai.mit.edu)
+
+ * Version 3.52.
+
+Mon Jun 12 17:45:11 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remake.c (check_dep): Drop circular dependencies instead of fataling.
+ (update_file_1 already does this.)
+
+ * default.c (default_suffix_rules): For .s -> .o, put the -o flag to
+ the assembler before the source file name.
+
+Sun Jun 11 12:00:52 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.51.
+
+ * make.texinfo (Features): Noted 1003.2 requirement of `+' meaning.
+
+ * file.c (remove_intermediates): If !SIG, write a single "rm" command
+ line, listing all files.
+
+ * read.c (read_makefile): Don't free the storage for the passed
+ filename, since it might not be malloc'd. When doing an included
+ makefile, free the name's storage.
+ (read_all_makefiles): Use variable_expand to find the value of
+ `MAKEFILES'. Free the storage for the names of -f makefiles.
+ (read_makefile): Allocate storage for the makefile name in the
+ `struct file' in read_makefiles.
+
+ * make.texinfo (Running: Instead of Execution): Document the effect of
+ + and $(MAKE)/${MAKE}.
+
+ * make.texinfo (Functions: Foreach Function): Document that if the
+ iteration variable was undefined before the `foreach' call, it will be
+ undefined after the call.
+
+ * commands.c: Split into commands.c, job.h, and job.c.
+
+ * rule.c (try_implicit_rule, pattern_search): Moved to new file
+ implicit.c.
+
+ * rule.c: Split into rule.h, rule.c, and default.c.
+ * default.c (install_default_pattern_rules): Renamed to
+ install_default_implicit_rules.
+ * make.h, main.c (main): Renamed uses.
+
+ * make.c: Renamed to misc.c.
+
+ * make.c (main, log_working_directory, decode_switches,
+ decode_env_switches, define_makeflags, die, print_version,
+ print_data_base): Moved to new file main.c.
+
+ * commands.c (execute_file_commands): Don't collapse backslash-newlines
+ here. When chopping the commands up into lines, don't chop at
+ backslash-newlines.
+ (start_job): Collapse backslash-newlines after printing the line.
+
+ * commands.c (start_job): Don't collapse backslash-newlines here.
+ (execute_file_commands): Collapse backslash-newlines before chopping
+ the commands up into lines.
+
+ * commands.c (set_file_variables): Initialize the length counters for
+ $^ and $? to zero!
+
+ * commands.c (start_job): Use vfork instead of fork. Someone else says
+ the child and parent DO have separate file descriptors.
+
+ * variable.c: Split internals into variable.c, function expansion into
+ function.c, and variable expansion into expand.c.
+ * function.c (handle_function): New function to check for a function
+ invocation and expand it.
+ * expand.c (variable_expand): Use handle_function.
+ * variable.c (push_new_variable_scope): New function to push a new
+ empty variable set onto the current setlist.
+ (pop_variable_scope): New function to pop the topmost set from the
+ current setlist and free its storage.
+ * function.c (expand_function: `foreach'): Push a new variable scope
+ for the iteration variable and pop the scope when finished.
+ * variable.h: Declare new functions.
+ * variable.c (initialize_variable_output): New function to return a
+ pointer to the beginning of the output buffer.
+ (save_variable_output): New function to save the variable output state.
+ (restore_variable_output): New function to restore it.
+ * expand.c (variable_expand): Use initialize_variable_output.
+ (allocated_variable_expand): Use {save,restore}_variable_output.
+ * variable.c (current_setlist): Renamed to current_variable_set_list
+ and made global.
+
+Sat Jun 10 00:11:25 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remake.c (library_file_mtime): Check for libNAME.a in the current
+ directory before doing VPATH search.
+
+ * variable.c (print_variable_set): Don't write "# Variables", and write
+ fewer blank lines.
+ (print_variable_data_base): Precede the variables with "# Variables".
+
+ * make.c (main): Print the data base under -p after doing everything
+ else, just before exitting. This way it gets info determined in
+ updating the goal targets.
+
+ * variable.c (print_variable_data_base): Split into print_variable,
+ which prints one variable, and print_variable_set, which prints a set.
+ Replaced with a call to print_variable_set for the global set.
+ (print_file_variables): New function to print a given file's local
+ variables.
+
+ * file.c (print_file_data_base): Call print_file_variables to print
+ each file's local variables.
+
+ * commands.c (set_file_variables): Actually define the values for
+ the $^ and $? variables!!!
+
+ * make.texinfo (Implicit: Pattern Rules: Automatic): Document new D and
+ F versions of $^ and $?.
+
+ * commands.c (start_job): In the child fork, use getdtablesize and a
+ loop to close all file descriptors other than 0, 1, and 2. We need to
+ do this since not only the bad stdin pipe, but also some directories,
+ may be open.
+
+ * commands.c (start_job): Use fork instead of vfork, because a vfork
+ parent and child share file descriptors, and our child needs to diddle
+ with stdin.
+
+ * variable.c (initialize_file_variables): When created a new variable
+ set, zero out the hash table.
+
+ * variable.c (target_environment): Don't use variables whose names are
+ not made up of alphanumerics and underscores.
+
+ * remake.c (update_file_1): Set the `parent' member of each dependency
+ to FILE before updating it.
+
+ * file.h (struct file): Add `parent' member.
+
+ * variable.c (initialize_file_variables): Don't take second arg PARENT.
+ Use FILE->parent instead. If FILE->parent->variables is nil, recurse
+ to initialize it.
+
+ * variable.h: Declare {allocated_}variable_expand_for_file.
+
+ * variable.c (allocated_variable_expand): Now
+ allocated_variable_expand_for_file, calling variable_expand_for_file,
+ and taking second arg FILE.
+ (allocated_variable_expand): New function, a wrapper around
+ allocated_variable_expand_for_file, passing a nil second arg.
+
+Fri Jun 9 12:11:45 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (start_job): On the child side of the fork, always close
+ the bad stdin file descriptor.
+
+ * commands.c (struct child): New member `environment', to hold the
+ environment for the child.
+ (execute_file_commands): Set the new childs `environment' member to nil
+ before calling start_job.
+ (start_job): Set up CHILD->environment before running the commands if
+ it is nil.
+
+ * make.c (main): Don't call new_environ. `shell' functions will now be
+ run with the environment make was called with.
+
+ * commands.c (child_handler): Don't check C->command_ptr before calling
+ start_job since we now have to check C->file->cmds->command_lines and
+ it's easier to let start_job handle all that.
+
+ * commands.c (struct child): New member `command_line', to hold an
+ index into file->cmds->command_lines.
+ (execute_file_commands): Set the new child's `command_line' to 0 and
+ its `commands' and `commands_ptr' to nil.
+ (start_job): When CHILD->command_ptr runs out, increment
+ CHILD->command_line and run the corresponding line from
+ CHILD->file->cmds->command_lines. Run it even under -t, -q, or -n if
+ the CHILD->file->cmds->lines_recurse element for that line is set.
+
+ * commands.c (execute_file_commands): Chop CMDS up into lines, setting
+ its `command_lines' and `lines_recurse' members, if it wasn't already
+ chopped.
+
+ * commands.h (struct commands): New members `command_lines' and
+ `lines_recurse'. The first is an array of chopped-up lines; the second
+ is an array of flags, each nonzero if the corresponding line is
+ recursive.
+
+ * variable.c (variable_expand_for_file): If FILE is nil, just do a
+ vanilla variable_expand.
+ (expand_function: `shell'): Pass second arg (as nil) to
+ construct_command_argv.
+
+ * commands.c (construct_command_argv): Use variable_expand_for_file on
+ `$(SHELL)' and `$(IFS)' instead of lookup_variable to check those
+ variables. This handles file-local and recursive values correctly.
+ To support this, take an additional argument FILE.
+
+ * variable.c (initialize_file_variables): New function to initialize
+ FILE's variable set list from PARENT's setlist. PARENT is the
+ immediate dependent that caused FILE to be remade, or nil if FILE is a
+ goal. (When user-level per-file variables are implemented, PARENT
+ should be passed as nil when defining per-file variables.)
+
+ * variable.c (variable_expand_for_file): New function to expand a line
+ using the variable set of a given file, and reporting error messages
+ for the file and line number of that file's commands.
+
+ * variable.h: Don't declare lookup_variable_for_file.
+
+ * variable.c (lookup_variable_*): Turned back into lookup_variable. It
+ now uses current_setlist.
+ (global_setlist): New static `struct variable_set_list', a setlist
+ containing global_variable_set.
+ (current_setlist): New static `struct variable_set_list *', a pointer
+ to the current variable set list.
+ (define_variable): Define in the current top-level set, not the global
+ set.
+
+ * commands.c (set_file_variables): New function to set up the automatic
+ variables for a file in its own variable set.
+ (execute_file_commands): Use set_file_variables.
+
+ * variable.c (new_environ): Replaced with target_environment, taking an
+ argument FILE, and returning an environment for FILE's commands.
+
+ * variable.c, variable.h: Remove all global special variable pointers.
+
+ * variable.c (define_variable_for_file): New function like
+ define_variable, but takes additional arg FILE, and defines the
+ variable in the variable set at the top of FILE's chain.
+ (lookup_variable_for_file): New function like lookup_variable, but
+ takes additional arg FILE, and looks the variable up in all of FILE's
+ variable sets.
+
+ * file.h (struct file): New member `variables', a `struct
+ variable_set_list' containing the list of variable sets used in the
+ expansion of the file's commands.
+
+ * variable.c (variables): Replaced with static `struct variable_set'
+ global_variable_set.
+ (define_variable): Now define_variable_in_set, taking additional
+ argument SET, the `struct variable_set' to define it in.
+ (define_variable): Use define_variable_in_set with global_variable_set.
+ (lookup_variable): Now lookup_variable_in_set, taking additional
+ argument SET, the `struct variable_set' to look it up in.
+ (lookup_variable): Use lookup_variable_in_set with global_variable_set.
+ (lookup_variable_in_setlist): New function to look up a variable in a
+ `struct variable_set_list' using lookup_variable_in_set.
+
+ * variable.h (struct variable_set): New structure, containing a hash
+ table and the number of hash buckets.
+ (struct variable_set_list): New structure, containing a link for a
+ linked-list, and a `struct variable_set'.
+
+ * commands.c (start_job): Under -n, return what the recursive start_job
+ call returns, since it might actually start a child.
+
+ * make.texinfo (Rules: Wildcards): Document ~ and ~USER expansion.
+
+ * commands.c (execute_file_commands): If start_job returns
+ failure, but -t is set, set FILE->update_status to success.
+ (start_job): If -t is set, and the commands are not recursive, return
+ failure (is is done for -q).
+
+ * remake.c (touch_file): New function to touch FILE.
+ (remake_file): Use touch_file. When touching a file, still do
+ execute_file_commands.
+
+ * remake.c (remake_file): Don't check question_flag (-q), since we
+ can't know here if the commands are recursive.
+
+ * commands.c (start_job): Don't use the `recursive' member of
+ CHILD->file->cmds. Instead, check for leading +s and $(MAKE) or
+ ${MAKE} in the command line here.
+
+ * commands.h (struct commands): Remove `recursive' member.
+
+ * rule.c (install_default_pattern_rules): Remove use of `recursive'
+ member.
+
+ * read.c (record_files): Don't check commands from $(MAKE) and set
+ their `recursive' member.
+
+ * commands.c (fatal_error_signal): Treat SIGQUIT like SIGINT, SIGHUP,
+ and SIGTERM, but don't send it to ourselves because it will cause a
+ core dump.
+
+Thu Jun 8 20:30:04 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.50.
+
+ * variable.c (variable_expand): Use allocated_variable_expand instead
+ of expand_argument in a few places.
+
+ * variable.c (allocated_variable_expand): Do static variable shuffling
+ here instead of using expand_argument.
+ (expand_argument): Use allocated_variable_expand.
+
+ * variable.c (recursively_expand): New function to recursively expand
+ its argument (a `struct variable'), returning the malloc'd value.
+ (variable_expand): Use recursively_expand.
+
+Sun May 28 12:49:27 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (main): Fixed buggy fix in deciding to increase space for
+ command-line variable definitions. (First it never did it, then it
+ always did it; now it does it when necessary.)
+
+Sat May 27 14:01:54 1989 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * make.c (main): Fixed bug in deciding to increase space for
+ command-line variable definitions.
+
+Fri May 26 15:48:01 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * read.c (multi_glob): Use allocated_expand_variable for checking
+ `HOME' variable for ~ expansion, since this may be called from inside a
+ `wildcard' function expansion.
+
+ * variable.h: Declare allocated_expand_variable.
+
+ * variable.c (allocated_expand_variable): New function to do variable
+ expansion in an allocated buffer, rather than the static one.
+
+ * make.c (main): Don't set glob_tilde (it no longer exists).
+
+ * variable.c (string_glob): Use multi_glob and parse_file_seq.
+
+ * read.c (multi_glob): Do ~ expansion here.
+
+ * glob.c (glob_tilde, glob_filename): Removed ~ expansion.
+
+ * variable.c (define_variable, lookup_variable): Use a smarter hashing
+ algorithm (the same one used for files and directories).
+ (VARIABLE_BUCKETS): Increased to 523.
+
+ * file.c (enter_file, lookup_file, rename_file): Use a smarter hashing
+ algorithm, spreading the bits about somewhat.
+
+ * make.c (log_working_directory): Under `-p', precede the directory
+ message with a `#'.
+
+ * make.c (print_version): Under `-p', precede each line with a `#'.
+ (print_data_base): Precede the header line with a `#' and include the
+ date and time on it.
+
+ * vpath.c (print_vpath_data_base): Precede non-directive
+ lines with `#'s.
+
+ * commands.c (print_commands): Precede the non-command line with a `#'.
+
+ * rule.c (print_rule_data_base), file.c (print_file_data_base): Precede
+ non-rule lines with `#'s.
+
+ * dir.c (print_dir_data_base): Precede all lines with `#'s.
+
+ * variable.c (print_variable_data_base): Changed format so that it can
+ be makefile input. Lines that are not variable definitions are
+ preceded with `#'. Nonrecursive variable definitions are made with all
+ dollar signs doubled to reproduce the initial value. Recursive
+ variable definitions containing newlines are done with `define'
+ directives. Nonrecursive variable definitions containing newlines, and
+ variable names containing :, =, or newlines, will come out garbled.
+
+Wed May 24 00:20:04 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.49.
+
+Tue May 23 19:18:00 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * variable.c (expand_function: `filter'/`filter-out'): Use
+ find_percent instead of pattern_p.
+
+ * variable.c (expand_function: `patsubst'): Pass new args (both nil)
+ to patsubst_expand.
+ (variable_expand): For $(var:pat%=rep%) references, pass new args to
+ patsubst_expand so as to avoid find_percent and thus disallow
+ quoting the %s.
+
+ * read.c (record_files): Pass new args to patsubst_expand.
+
+ * variable.c (patsubst_expand): Take two new args: PATTERN_PERCENT
+ and REPLACE_PERCENT. Each of these, if non-nil, means that PATTERN
+ (or REPLACE) has already been run through find_percent, and
+ PATTERN_PERCENT (or REPLACE_PERCENT) is the result.
+
+ * make.h: Declare find_percent instead of pattern_p.
+
+ * read.c (pattern_p): Changed to find_percent, returning a pointer
+ to the %, or nil if there is none.
+ (record_files): Take another arg, PATTERN_PERCENT, a pointer to the
+ % in PATTERN.
+ (read_makefile): Pass PATTERN_PERCENT to record_files.
+
+ * make.texinfo (Rules: Static Pattern: Static Usage,
+ Rules: Directory Search: Selective Search,
+ Functions: Text Functions): Documented that `%' can be quoted.
+
+ * variable.c (expand_function: `filter'/`filter-out'): Use pattern_p
+ to allow quoted %s in patterns.
+
+ * variable.c (patsubst_expand): Use pattern_p on PATTERN and REPLACE
+ to allow quoted %s. Quoting backslashes are removed from REPLACE
+ even if PATTERN contains no unquoted %.
+
+ * read.c (pattern_p): Made global.
+ * make.h: Declare pattern_p.
+
+ * read.c (pattern_p): New function to search for an unquoted % in a
+ string. Backslashes quote %s and backslashes. Quoting backslashes
+ are removed from the string by compacting it into itself. Returns
+ nonzero if an unquoted % was found, zero if not.
+ (record_files): Use pattern_p to check for implicit rules.
+ (read_makefile): Use pattern_p to check for static pattern rules.
+ Also use it to allow quoted %s in `vpath' patterns; warn about
+ `vpath' patterns with no %s.
+
+Mon May 22 16:31:52 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * glob.c (glob_filename): Replace a `1' with the `l' that should
+ have been there. This incidentally stops it from dumping core.
+
+ * glob.c (glob_filename): If the path is just a directory, with no
+ file name pattern, return the directory alone.
+
+ * glob.c (glob_tilde): New global variable (int), defaults to zero.
+ (glob_filename): If glob_tilde is nonzero, expand ~ or ~USER.
+
+ * variable.c (string_glob): Keep a static allocated buffer for file
+ names taken from the list, instead of allocating and freeing one
+ every time.
+
+Fri May 19 18:06:26 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.c (decode_switches): Get floating numbers from the right string.
+
+Sun May 14 13:48:04 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * commands.c (delete_child_targets): When deleting `also_make'
+ files, include the target's name in the message:
+ make: *** [foo] Deleting file `bar'
+
+Sat May 13 17:34:26 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (max_load_average, default_load_average): Default to -1.
+
+ * load.c (wait_to_start_job): Return if max_load_average is < 0.0,
+ not equal.
+
+Fri May 12 16:08:05 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * variable.c (variable_buffer_output): Don't try to do pointer
+ arithmetic between objects not in the same array.
+
+Wed May 10 15:55:29 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * rule.c [M_XENIX] (default_suffix_rules, default_variables): Minor
+ changes to allow for strange compiler syntax.
+
+ * rule.c (default_variables): Don't include "> $@" in
+ $(PREPROCESS.S), since it's already in the .S.s rule.
+
+ * file.c (enter_file): Make a new double-colon file the `prev'
+ member of the bottom `prev' file (the one whose `prev' is nil).
+
+ * read.c (do_define): Append newlines after copying the lines into
+ the value buffer, so we end up with a trailing newline.
+
+ * make.c (print_version): If the global variable
+ `remote_description' is not nil or "", append "-%s" (its value) to
+ the version number.
+ * remote-*.c: Define remote_description appropriately.
+
+Sun May 7 15:15:53 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (error_status): Converted to new function child_error,
+ taking new arguments TARGET_NAME and IGNORED, and writing an error
+ message: "*** [target] Error 1" (or signal #, etc.), appending
+ " (ignored)" if IGNORED is nonzero.
+ (child_handler): Use child_error instead of error_status.
+
+ * compatMakefile (all): Don't depend on `doc'.
+
+ * compatMakefile (clean): Don't remove make-info*.
+ (realclean): New rule, depends on `clean', removes tags, TAGS,
+ and all Info and TeX files.
+
+Thu May 4 17:00:46 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * variable.c (print_variable_data_base), file.c
+ (print_file_data_base), rule.c (print_rule_data_base),
+ Use floating-point for averages and percentages.
+
+ * make.c (print_data_base): Print messages before and after the data
+ base information.
+
+ * commands.c (print_commands): Changed output format to separate
+ lines in commands and prefix them with tabs.
+
+ * dir.c (print_dir_data_base): Changed output format slightly.
+
+ * vpath.c (struct vpath, construct_vpath_list,
+ selective_vpath_search): Remove the `exists' member and its uses.
+
+ * vpath.c (print_vpath_data_base): New function to print all
+ selective and general VPATH search paths (for -p).
+
+ * make.c (print_data_base): Call print_vpath_data_base.
+
+ * file.c (print_file_data_base): Changed format to look more like a
+ makefile rule. Now reports all information in the `struct file'.
+
+ * rule.c (print_rule_data_base): Changed format of display from:
+ %: (terminal)
+ depends on: RCS/%,v
+ to:
+ %: RCS/%,v
+ is terminal.
+ references nonexistent subdirectory.
+ Also include number and percent that refer to nonexistent
+ subdirectories.
+
+Thu Apr 27 15:45:40 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.c (main): Figure out the level of recursion before writing
+ the `Entering directory' message.
+ * variable.c (define_automatic_variables): Don't figure out the
+ level of recursion from `MAKELEVEL'. It's now done in main.
+
+ * Version 3.48.
+
+Wed Apr 26 16:39:17 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (child_handler): Set `update_status' to zero when there
+ are no more commands.
+
+ * make.c (log_working_directory): If MAKELEVEL > 0, indicate the
+ recurson in the message (make[1]: ...).
+
+ * commands.c (child_handler): Change status to `cs_finished' when
+ commands fail.
+
+ * commands.c (start_job): Return 0 (success) if there were no more
+ commands for the child.
+ (child_handler): Change the status to `cs_finished' when start_job
+ fails to start the commands.
+
+ * make.c (main): Don't handle SIGEMT if it's not defined.
+ Do handle SIGDANGER if it is defined.
+
+ * commands.c (child_handler): Reorganized inner loop so that it
+ doesn't try to inspect the child before finding it.
+
+Tue Apr 25 16:28:24 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.c (end_of_token): Fixed bug wherein backslashes caused
+ immediate return.
+
+ * Version 3.47.
+
+ * make.texinfo (Implicit: Pattern Rules: Automatic): Document
+ setting of `$*' for explicit rules. Add note clarifying that
+ automatic variables, though referred to in the documentation as
+ `$<', etc. are no different than `$(<)', etc.
+
+Fri Apr 21 18:00:12 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * file.c (enter_file): Don't strip leading `./'s.
+
+ * read.c (parse_file_seq): Strip leading `./'s.
+
+Thu Apr 13 17:26:41 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.texinfo (Commands: Parallel, Running: Options): Document that
+ -l with no argument removes a previous load limit.
+
+ * make.c (struct command_switch): New member `default_value'.
+ (default_job_slots): Default value (of 1) for -j.
+ (default_load_average): Default value (of 0, unlimited) for -l.
+ (command_switches): Use default values for -j and -l.
+ Also, -l without an arg now means no load limit.
+ (define_makeflags): Don't write positive_int or floating options
+ whose values are their defaults.
+
+ * make.c (main): Under -w, write a `Leaving directory' message
+ before re-execing.
+
+Tue Apr 11 16:46:29 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.46.
+
+ * Makefile: Provide an easy place for system-specific definitions
+ (-DUSG, etc.) and extra object files (for whatever).
+
+ * make.texinfo: Miscellaneous fixes from RMS.
+
+Mon Apr 10 19:31:34 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * rule.c (pattern_search): Put rules with `subdir' flags set in
+ TRYRULES, since these might be valid with VPATHs. In the TRYRULES
+ loop, don't do lookup_file or file_exists_p calls for dependencies
+ of rules with `subdir' flags set, but still do vpath_search calls
+ and intermediate-file searches.
+
+Thu Apr 6 16:33:00 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.texinfo (Implicit: Pattern Rules: Automatic): Document the
+ new definition of $* for explicit rules.
+
+ * commands.c (execute_file_commands): If FILE->stem is nil, figure
+ out if FILE->name ends in a suffix in the .SUFFIXES list; if so,
+ store the name sans suffix in FILE->stem (and $*).
+
+Wed Apr 5 15:24:48 1989 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * file.c (remove_intermediates): Don't use `file_exists_p' to check
+ for the existence of intermediate files, because the hashed
+ directories will probably be out of date.
+
+ * commands.c (child_handler): Free the good stdin before running the
+ next command line.
+
+ * commands.c [USG] (init_siglist): Don't case SIGEMT if it's not
+ defined. Do case SIGDANGER (for IBM RT) if it is defined.
+
+ * commands.c: Changed `SYS_WAIT' to `HAVE_SYS_WAIT'.
+ (child_handler): Use `wait3' if HAVE_SYS_WAIT is #defined.
+
+ * file.c (enter_file): If any `./'s are stripped off, allocate a new
+ copy of the shortened name.
+
+ * rule.c (pattern_search): Allocate the right length strings for
+ `also_make' members.
+
+Sat Apr 1 13:28:38 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.45.
+
+ * GNUmakefile: Make a separate tarfile of the DVI and info files.
+
+ * make.c (define_makeflags): If a switch that takes an argument has
+ its default value, put the switch in MAKEFLAGS with no arguments.
+
+ * make.c (command_switches): Pass `-l' in MAKEFLAGS.
+
+Wed Mar 29 17:50:05 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * GNUmakefile: Don't include the DVI and info files in the dist.
+
+ * commands.c (child_handler): Don't call
+ check_changed_{directories,vpaths}.
+
+ * make.h: Don't declare check_changed_{directories,vpaths}.
+
+ * vpath.c (check_changed_vpaths): Removed this function.
+
+ * dir.c (struct directory): Remove `modtime' member.
+ (find_directory): Don't set `modtime' member.
+ (check_changed_directories): Removed this function.
+
+ * remake.c (update_file_1): Set FILE->command_state to cs_finished
+ if it didn't need to be remade.
+
+ * remake.c (update_file): Only write the "up to date" message if the
+ target went from `not_started' state to `finished' state without
+ incrementing the count of files remade.
+
+ * commands.c [USG] (init_siglist): If both SIGCHLD and SIGCLD are
+ defined, don't put them both in the `switch'.
+
+Tue Mar 28 15:37:02 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * file.c (rename_file): Change FILE's name!!!
+
+ * rule.c (create_pattern_rule): Set the `terminal' member of the new
+ rule after calling new_pattern_rule, which zeros it.
+
+ * rule.c (default_variables): Use $(C++) in $(COMPILE.cc)!
+
+Sun Mar 26 15:52:30 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Makefile: Added a `clean' target.
+
+Fri Mar 24 15:08:46 1989 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * Version 3.44.
+
+ * file.c (rename_file): If a `struct file' for the renamed-to name
+ exists, and it is a target or has deps or commands, barf.
+ If not just remove the old one for put in the new one.
+
+ * remake.c (update_file_1, check_dep): Changed it back so that equal
+ modtimes to NOT make dependencies be considered newer. RCS checks
+ out files with equal modtimes as the RCS files, so this screws it.
+
+ * make.h, glob.c: If __GNUC__ is defined, use __builtin_alloca.
+
+ * Makefile: Use variables `ALLOCA' and `ALLOCASRC' so systems
+ without a good standard alloca can get it from the Emacs
+ distribution (or somewhere).
+
+ * dir.c: Don't include <sys/stat.h>, since make.h does.
+
+ * make.c: Removed debugging version of getwd.
+
+Thu Mar 23 16:16:27 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.43.
+
+ * remake.c (update_file_1): If a dependency loop is found, don't
+ fatal. Emit an error message and remove the dependency.
+
+ * remake.c (library_file_mtime): Fixed to use the right names.
+ (update_file_1, check_dep): Consider a dependency "newer" than its
+ dependent if they have the same modification time.
+
+Wed Mar 22 19:31:35 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * file.c (remove_intermediates): Don't try to remove nonexistent files.
+
+Mon Mar 20 10:21:22 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.42.
+
+ * rule.c (default_variables): Set F77 to $(FC) and F77FLAGS to
+ $(FFLAGS) so explicit rules expecting these (which are in System V)
+ will work. However, there is no way to make setting these affect
+ the implicit rules, unless we trash FC and FFLAGS (which BSD uses).
+ [USG]: Set GET to `get' rather than `/usr/sccs/get'.
+
+Sun Mar 19 20:00:27 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * vpath.c (construct_vpath_list): Don't replace VPATH[ELEM] with
+ dir_name (V), because the latter may get freed.
+
+Sat Mar 18 15:01:39 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.41.
+
+ * make.texinfo: Cleaned-up edition 0.1 Beta from RMS and Bob Chassell.
+
+ * file.c (rename_file): If a file with the new name already existed,
+ use the same storage space, after freeing the old file's name, deps,
+ and `also_make' member, preserving the link in the chain.
+ Also write an error message telling the user to report the incident;
+ I don't think this should be able to happen, but I'm not sure.
+
+ * file.c (rename_file): Don't add the hash values of the old and new
+ names together! Reset HASHVAL before computing the second value.
+
+ * dir.c (check_changed_directories): Zero the new file hash table
+ after allocating it.
+
+ * dir.c (dir_file_exists_p): If FILENAME is "", return 1 if the
+ directory exists.
+
+ * vpath.c (check_changed_vpaths): New function to run through the
+ search paths of all VPATHs, making the `exists' members correspond
+ to reality.
+
+ * commands.c (child_handler): Call check_changed_vpaths.
+
+ * make.h: Declare check_changed_vpaths.
+
+ * vpath.c (struct vpath): New element `exists', an array of char
+ flags; exists[N] is nonzero if searchpath[N] exists.
+ (construct_vpath_list): Set the `exists' member.
+ (selective_vpath_search): Don't search directories whose `exists'
+ elements are zero.
+
+ * read.c (read_makefile): Set the `dontcare' flag of makefiles
+ from the MAKEFILES variable if they were not mentioned anywhere but
+ in the MAKEFILES variable.
+
+ * read.c (read_makefile): Don't write an error message if fopen
+ fails for a makefile from the MAKEFILES variable.
+
+ * dir.c (struct directory): Add `modtime' member to record the
+ modification time of the directory when it was opened.
+ (check_changed_directories): New function to check all known
+ directories; if their modtimes have changed since they were opened,
+ their file tables are cleared and they are reset to be read in.
+
+ * commands.c (child_handler): Call check_changed_directories before
+ returning.
+ make.h: Declare check_changed_directories.
+
+Tue Mar 14 20:07:13 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.40.
+
+ * make.c (print_version): Made the copyright say 1988, 1989.
+
+ * read.c (read_all_makefiles): Don't set *MAKEFILES to the name of
+ the end of the read_makefiles chain, since the latter may be from an
+ included makefile. (Why did I do this before?)
+
+ * make.c (main): Set argv[0] to "" if it was nil. Don't put the
+ command-line variable definitions into argv[0], only into the MAKE
+ variable!
+
+Sun Mar 5 20:44:08 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * ar.c (ar_member_date, ar_touch): Remove the trailing ) from the
+ member name.
+
+Fri Mar 3 18:15:15 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (construct_command_argv): Initialize NEW_ARGV to 0. At
+ `slow' label, if NEW_ARGV is not 0, free it; then allocate 4 strings.
+
+Tue Feb 28 14:29:39 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.39.
+
+ * COPYING, make.texinfo: New GNU General Public License, version 1.
+
+ * *.c, *.h, Makefile: New copyright notices for the new GNU General
+ Public License, version 1.
+
+ * commands.c [USG]: Define WRETCODE correctly (again).
+
+ * variable.c (expand_function: `shell'): Don't capture the standard
+ error output of the shell command.
+
+ * ar.c (ar_touch, ar_member_date): Allocate MEMNAME with the right
+ length.
+
+ * load.c [not UMAX] (load_average): Don't clobber the first nlist
+ member when trying to set the second!
+
+Thu Feb 23 13:13:53 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * commands.c (child_handler): Really ignore errors under -i and for
+ - lines, don't just print a different message.
+
+ * make.c (decode_switches): Fixed handling of arguments (or lack
+ thereof) to switches.
+
+Wed Feb 22 16:25:39 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * commands.c (construct_command_argv): Don't clobber LINE when
+ checking the IFS variable.
+
+Sun Feb 19 11:17:07 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * load.c [UMAX, not NO_LDAV] (load_average): Return 0.0 rather than
+ randomness when calls fail.
+
+ * Version 3.38.
+
+ * commands.c (fatal_error_signal): If handling a user kill signal
+ (TERM, INT, HUP), wait for the children without printing the
+ "Waiting for children" message, since they will die quickly.
+
+ * Version 3.37.
+
+ * remote-stub.c (remote_status): Take another arg, BLOCK. If this
+ is nonzero block waiting for remote children. If not, return 0 if
+ we would have to block.
+
+ * commands.c (child_handler) [not USG]: If called as a signal
+ handler, use wait3 and don't block.
+ [USG]: If called as a signal handler, return after handling one child.
+
+Sat Feb 18 13:37:04 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * file.c (snap_deps): Process all double-colon entries of each file,
+ not just the first one.
+
+ * Version 3.36.
+
+ * remote-stub.c: remote.c renamed.
+ remote.c: Just include remote-stub.c
+
+ * commands.c (child_handler): If we were called as a signal handler,
+ return after handling one child.
+
+ * commands.c [not USG]: Include <signal.h> and define `sigmask' if
+ <signal.h> doesn't.
+ (block_children, unblock_children): Use sigmask rather than
+ bitshifting explicitly (and incorrectly).
+
+ * remote.c (remote_kill): New function to send a signal to a
+ remote child.
+
+ * commands.c (fatal_error_signal): If we get a SIGTERM, send one to
+ each living child. If we get a SIGTERM, SIGINT, or SIGHUP, delete
+ all pending targets before waiting for children.
+ (struct child): Add new member `deleted'.
+ (start_job): Initialize `deleted' member to 0.
+ (delete_child_targets): New function to delete a given child's
+ targets, unless the `deleted' flag in the `struct child' says they
+ have already been deleted. Sets this flag before returning.
+
+Thu Feb 16 18:32:07 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c [USG]: Define `WRETCODE' correctly (X & 0xff00).
+
+Tue Feb 14 16:05:00 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (construct_command_argv): Don't make the 0th element of
+ the argument list be "sh" when executing /bin/sh, because start_job
+ uses the 0th element as the program name.
+
+Sun Feb 12 17:42:05 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.35.
+
+ * read.c (readline): Put a null in the beginning of the buffer
+ before starting the reading loop.
+
+ * read.c (read_makefile): Made main reading loop while
+ !feof (infile), and removed EOF check after calling readline.
+
+Sun Feb 5 19:52:38 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * remote.c (block_remote_children, unblock_remote_children): New
+ (stub) functions to block and restore asynchronous notification of
+ remote child death.
+
+ * commands.c (block_children): Call block_remote_children.
+ (unblock_children): Call unblock_remote_children.
+ (child_handler): If called as a signal handler, block remote
+ children on entry and unblock them before returning.
+
+ * commands.c (child_handler): For unknown children, if they are
+ remote, give their remote ID; if local, give their PID and make's.
+
+ * commands.c (execute_file_command): Don't put a new child in the
+ chain unless start_job succeeds. Block children before calling
+ start_job, and unblock them after putting the child in the chain and
+ incrementing `job_slots_used' (if start_job succeeded).
+
+ * commands.c (block_children, unblock_children): Make these globally
+ visible (not `static').
+ commands.h: Declare block_children and unblock_children.
+
+ * variable.c (expand_function: `shell'): Use
+ `shell_function_completed'. Block children before forking and
+ unblock after `shell_function_pid' is set properly and
+ `shell_function_completed' is reset to 0.
+
+ * commands.c (child_handler): When the child of the `shell' function
+ completes, set `shell_function_completed' to 1 if it actually ran,
+ or -1 if it didn't (due to fork or exec failure).
+
+ * commands.c (block_children, unblock_children): New functions to
+ block and unblock the child termination signal.
+ (wait_for_children): Use block_children and unblock_children.
+ (execute_file_commands): Block children around the critical section
+ wherein a new child is put on the chain.
+
+ * make.c (main): Change the environment to contain the correct
+ MAKELEVEL before re-execing.
+
+Sat Feb 4 18:28:48 1989 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.34.
+
+Fri Feb 3 16:36:49 1989 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * rule.c (default_variables): Fixed $(LINK.c).
+
+Wed Feb 1 18:05:07 1989 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Version 3.33.
+
+ * version.c: Removed copyright notice, since this is a one-line file.
+
+ * commands.c (error_status): Made it return BUF, rather than running
+ off the end (this apparently worked on Sun 3s for some reason).
+
+ * ar.c, commands.c, dep.h, load.c, make.c, make.h, read.c, remake.c,
+ rule.c, variable.c, Makefile: Changed copyrght notices to cover 1989.
+
+Mon Jan 30 15:51:28 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.32.
+
+Fri Jan 27 20:09:24 1989 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * remake.c (remake_file): Don't touch phony targets.
+
+ * rule.c (convert_to_pattern): Fixed an incorrect length passed to
+ savestring.
+
+ * variable.c (expand_function: `shell'): Close the read side of the
+ pipe on the parent side of the fork.
+
+ * commands.c (start_job): On the child of the fork, close the
+ BAD_STDIN fd if we're not using it.
+
+ * read.c (record_files): A file beginning with a dot can be a
+ default target if it also contains a slash (as in `../foo').
+
+ * commands.c (wait_for_children): For BSD, block SIGCHLD rather than
+ ignoring it to avoid a race condition when child_handler is returning.
+
+ * commands.c (child_handler): Do blocking waits.
+ (error_status): Return a string describing exit status. (Split out
+ of child_handler).
+
+ * read.c (multi_glob): Change VECTOR to VEC for Alliant.
+
+Thu Jan 5 00:06:51 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.31.
+
+ * make.texinfo (Features): Noted $(foo:PAT=SUB) from SunOS 4.0.
+
+ * make.texinfo (Options/Recursion): -d and -p go in the environment.
+
+ * load.c: Include "commands.h".
+
+Wed Jan 4 17:49:25 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * make.c (switches): -d and -p can come from the environment and are
+ put into it.
+
+ * read.c (record_files): Fixed the checking for duplicate deps so it
+ doesn't clobber the first one.
+
+ * make.texinfo: Documented default implicit rule changes.
+
+ * rule.c: Revamped default suffix rules. They now use Sun's style
+ of using variables `COMPILE.c', `LINK.c', etc. for each suffix, and
+ use `TARGET_ARCH' and `TARGET_MACH' variable where appropriate.
+ Also support Modula-2 compilation (suffixes .sym, .def, and .mod).
+ Ratfor Yacc support is gone, since nobody has yacc -r.
+ All EFL support is gone, since nobody uses EFL.
+
+ * ar.c, arscan.c: Don't assume `long int' and `int' are the same.
+
+ * commands.c [USG]: Fixed wait status bit encoding.
+ [USG and not USGr3] (dup2): Define this for SysVr2.
+
+ * make.h, dep.h, make.c [iAPX286]: Make allowances for this
+ brain-damaged compiler.
+
+ * make.texinfo (Variables: Flavors): Fixed a typo.
+
+Tue Jan 3 18:09:31 1989 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * ar.c (ar_member_date, ar_touch): Truncate member names to 15 chars.
+
+ * Version 3.30.
+
+ * commands.c [SYS_WAIT]: If this is defined, use BSD <sys/wait.h>
+ and wait3 even if USG.
+
+ * read.c (record_files): Defining .DEFAULT with no deps or commands
+ clears its commands.
+
+ * rule.c (default_suffixes): Added `.sh'.
+ (default_suffix_rules): Added single-suffix .sh rule, copies source
+ to target and makes target executable.
+ make.texinfo (Catalogue of Rules): Documented .sh rule and its use
+ in conjunction with SCCS.
+
+ * rule.c (set_default_suffixes): Define variable `SUFFIXES' to the
+ default list ("" under -r).
+ make.texinfo (Suffix Rules): Document `SUFFIXES' variable.
+
+ * rule.c (default_variables), make.texinfo (Implicit Variables):
+ Variable AR defaults to `ar', ARFLAGS to `rv', and RM to `rm -f'.
+
+ * rule.c (install_default_pattern_rules): Default variables are made
+ recursive.
+ (default_variables): Added "CPP", defined to "$(CC) -E".
+ (default_suffixes): Added `.S', before `.s'.
+ (default_suffix_rules): New rule for .S to .s, runs CPP.
+ All rules that use CPP now include "$(CPPFLAGS)".
+ make.texinfo (Catalogue of Implicit Rules, Implicit Variables):
+ Documented above changes.
+
+ * commands.c [USG] (sys_siglist): Don't define.
+ [USG] (init_siglist): New function to initialize sys_siglist.
+
+ * make.texinfo (Variables: Reference): Documented `$(foo:PAT=SUB)'
+ references.
+
+ * variable.c (variable_expand): A reference `$(foo:PAT=SUB)' is
+ equivalent to `$(patsubst PAT,SUB,$(foo))'.
+
+ * variable.c (variable_expand): Free the storage for the expansion
+ of a recursive variable when it is nod longer needed.
+
+ * variable.c (variable_expand): When checking for `$($(foo))', use
+ lindex so as not to search for the second `$' outside the parens.
+
+ * make.c (struct stringlist, main, decode_switches): Changed `index'
+ member to `idx'.
+
+Sat Dec 24 16:02:32 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (wait_for_children [USG]): Handle SIGCLD with SIG_DFL,
+ rather than SIG_IGN. Ignoring SIGCLD reportedly makes wait return -1.
+
+ * arscan.c [USGr3]: Define PORTAR to 1 (as with sun386).
+ (ar_scan [USGr3]): Remove trailing slashes from member names.
+
+Thu Dec 22 17:54:05 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * make.texinfo (Makefiles: Overriding Makefiles): New node
+ documenting use of .DEFAULT to have one makefile defer unmakeable
+ targets to another.
+
+ * make.texinfo (Implicit: Using Implicit, Implicit: Last Resort):
+ Mention empty commands and xref node `Empty Commands'.
+
+Wed Dec 21 20:12:40 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.29.
+
+ * make.c (struct command_switch, command_switches, et al): New
+ member `noarg_value', if not nil, ptr to value to use if no arg is
+ given to a switch that would otherwise require one. The -j option
+ can now be given w/o an arg, to mean infinite jobs.
+ * commands.c: If job_slots is zero, infinite jobs.
+
+ * read.c (read_all_makefiles, read_makefile): Make makefiles precious.
+
+ * make.c (decode_switches): For a positive_int or floating option,
+ if we moved to the next argument word, but found no argument for the
+ option, move back to the correct word.
+
+ * make.c (decode_switches): If we got any unknown options, die after
+ processing all arguments.
+
+ * GNUmakefile: Moved `include depend' to the end, so the default
+ goal will be set before then.
+
+ * load.c (wait_to_start_job [Unix, UMAX]): Merged into one version
+ under #ifdef LDAV_BASED. Only loop while we have jobs running.
+ Sleep for increasing amounts (increase one second per iteration)
+ before checking the load average (after the first check).
+ Get the load average from function load_average.
+ (wait_to_start_job [not LDAV_BASED]): Always return.
+ (load_average [UMAX]): Fetch load average for Encore UMAX.
+ (load_average [not NO_LDAV]): Fetch load average from /dev/kmem.
+ [not NO_LDAV]: Define LDAV_BASED.
+
+Tue Dec 20 18:54:50 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.28.
+
+ * commands.c (wait_for_children): Take second arg, ERROR. If
+ nonzero, and there are children, print a message on stderr.
+ (execute_file_commands, fatal_error_signal): Pass second arg.
+ * make.c (die), remake.c (update_goal_chain), variable.c
+ (expand_function: `shell'): Ditto.
+
+Sat Dec 17 01:05:38 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * commands.c (start_job): Call wait_to_start_job before forking.
+
+ * load.c (load_average): Converted to wait_to_start_job.
+
+ * remote.c: New file for remote execution functions.
+ (start_remote_job_p): Return nonzero if the next job should be run
+ remotely.
+ (start_remote_job): Start a remote job and return an ID for it.
+ (remote_status): Get status of dead remote children.
+
+Fri Dec 16 16:51:07 1988 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * commands.c (start_job): If start_remote_job_p () returns nonzero,
+ call start_remote_job to start the job rather than fork and exec.
+ (child_handler):
+
+ * commands.c (execute_file_commands): Moved load average checking to
+ start_job.
+
+ * commands.c (child_handler: USG): Record the pid wait returns.
+
+ * load.c (UMAX): Added some #include's needed for UMAX.
+
+ * read.c (multi_glob), variable.c (string_glob): Ignore a (char **)
+ -1 return from glob_filename.
+
+ * variable.c (variable_expand): Make sure we don't increment past
+ the end of the string we were passed.
+
+ * variable.c (variable_expand): Terminate the expansion.
+
+ * file.c (rename_file): If there is already a file under the new
+ name, set its contents equal to FILE's (ick).
+
+ * variable.c (define_automatic_variables): Pass all the args to
+ define_variable when defining MAKELEVEL!
+
+ * commands.c (execute_file_commands): If max_load_average > 0, and
+ we have children running, don't start up another child until the
+ load average goes below max_load_average.
+
+ * make.c: New variable `max_load_average'.
+ (struct command_switch, decode_switches, decode_env_switches):
+ Handle floating-point (double) args.
+ (command_switches): Added `-l' switch to set `max_load_average'.
+
+ * load.c (load_average): New file and function to return a double
+ that is the current load average (1.00 scale).
+ * GNUmakefile, oldMakefile: Pass flags in $(LOAD_AVG) for load.c.
+
+Thu Dec 15 15:22:08 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Makefile: Renamed to oldMakefile.
+ * GNUmakefile: Make Makefile from oldMakefile and depend.
+
+ * read.c (read_all_makefiles): When putting the default makefiles in
+ the read_makefiles chain so they will be remade, put them in the
+ right order.
+
+ * remake.c (update_goal_chain): If MAKEFILES is nonzero, always make
+ in serial, and return as soon as one goal whose `changed' member is
+ nonzero is successfully remade.
+
+ * commands.c: Don't include <sys/fcntl.h>.
+
+ * commands.c (construct_command_argv): Added ` to sh_chars.
+
+ * make.h: Don't declare construct_makeflags.
+
+ * make.c (main): Set up MAKEFLAGS and MFLAGS and make an environment
+ both before and after reading the makefiles, so the makefiles can
+ use them and possible change them, and later children will get the
+ right information.
+ (construct_makeflags): Replaced with define_makeflags (static void),
+ which defines the two variables.
+ * variable.c (define_automatic_variables): Don't define MAKEFLAGS
+ and MFLAGS.
+
+Mon Dec 12 14:40:31 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * Version 3.27.
+
+ * commands.c (child_handler): Reset the handler to ourselves when
+ called for USG, since it has no safe signals.
+
+ * commands.c: For USG, use an int rather than a `union wait' for
+ wait calls, and dissect it with bitmasks.
+ (child_handler): No wait3 system call in USG. Since we can't
+ protect from hanging, always return immediately if we have no
+ children we know about and we're not running a `shell' function.
+ (There is still the danger of hanging waiting for a child that died
+ without our being notified.)
+
+ * remake.c: Include <fcntl.h> instead of <sys/file.h>. What we need
+ is really in <fcntl.h>, and while BSD <sys/file.h> includes
+ <fcntl.h>, USG doesn't.
+
+ * make.c (main): Figure out the program name before doing anything
+ which might need it (in a call to error or fatal).
+
+ * dir.c, glob.c: Use `struct dirent' and <dirent.h> for USGr3.
+
+ * arscan.c (ar_scan): Added missing & before buf (which is an int)
+ if SARMAG is not defined (SysV).
+
+Fri Dec 9 18:44:13 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Version 3.26.
+
+ * dir.c (find_directory, dir_file_exists_p): Keep track of how many
+ directories we have open and don't let it be more than
+ MAX_OPEN_DIRECTORIES (currently 10).
+
+ * variable.c (expand_function: `foreach'): Use expand_argument
+ rather than variable_expand so each repetition doesn't clobber the
+ last!!!
+
+Mon Dec 5 15:58:46 1988 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * Version 3.25.
+
+ * Makefile: Define `install' target.
+
+ * GNUmakefile: Don't include GNUmakefile or depend in the
+ distribution file.
+
+Wed Nov 30 15:53:42 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * commands.c (execute_file_commands): Don't clobber a null into
+ random storage if there were no $^ and/or $? words.
+
+ * remake.c (check_dep): Set *MUST_MAKE_PTR nonzero if a dependency
+ doesn't exist.
+
+ * ar.c (ar_member_date, ar_touch): Make sure the modtime of the
+ archive file itself is known before we fetch or change the modtime
+ of one of its members.
+
+ * read.c (read_makefile): Expand variable and function references
+ before parsing rules so variable can contain special characters
+ (colons and semicolons).
+
+Sat Nov 26 11:36:31 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * variable.c (expand_function: `filter', `filter-out'): Fixed so
+ that filter-out works right.
+
+ * variable.c (expand_function: `filter', `filter-out'): Made these
+ functions use each word of their first argument as a pattern.
+
+Fri Nov 25 10:51:47 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.24.
+
+ * read.c (record_files): If a target is listed more than once in a
+ single rule (that defines commands), give a warning message rather
+ than the counter-intuitive message saying commands were already
+ defined (in the same place).
+
+ * make.c (fatal, error): Made them both take 6 args since there is
+ at least one error message that need that many. Too bad vfprintf is
+ not universal!
+
+ * Version 3.23.
+
+ * read.c (read_makefile): Moved the construction of the `struct
+ commands' into record_files. Call record_files before recursing for an
+ included makefile so the higher-up will determine the default goal.
+ (record_files): Take arguments COMMANDS, COMMANDS_IDX and
+ COMMANDS_STARTED and construct a `struct commands.
+
+Thu Nov 24 14:36:33 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.22.
+
+ * make.c (main): Made it a fatal error if we can't move back to the
+ directory we started in before re-execing.
+
+ * make.c (main): Get the current directory before doing anything
+ else, so we know it even if we don't need it for the value of
+ `MAKE', since we might want it when re-execing.
+
+Wed Nov 23 13:34:44 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.21.
+
+ * read.c (record_files): Eliminate duplicate deps in a chain.
+
+ * variable.c (expand_function: `sort'): Pass the right number to
+ qsort, not one less.
+
+ * remake.c (remake_file): Always call notice_finished_file if
+ FILE->command_state == cs_finished.
+
+ * commands.c (execute_file_commands): Call notice_finished_file to
+ set FILE's status correctly when start_job fails (because it's out
+ of commands or running under -n).
+
+Fri Nov 18 15:31:12 1988 Roland McGrath (mcgrath at saffron.Berkeley.EDU)
+
+ * Version 3.20.
+
+ * remake.c (update_file_1): Set the `update_status' of FILE to
+ nonzero and set FILE's `updated' bit if we have decided to give up
+ on remaking FILE because of errors in the dependencies.
+
+ * rule.c (pattern_search): Debugging messages use `dependency' (vs.
+ `dependent') properly.
+
+ * make.texinfo (Conditionals: Conditional Syntax): Function index
+ entries for `ifndef' and `ifneq'.
+
+ * variable.c (define_automatic_variables): Define `MAKELEVEL' to the
+ decimal number of the makelevel, since it may be malformed or blank.
+
+ * remake.c (remake_file): Call notice_finished_file after touching.
+
+Sat Nov 12 19:29:34 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.19.
+
+ * GNUmakefile (dist): Pass the `-f' flag to compress.
+
+ * vpath.c (build_vpath_lists): Check for VPATHS being nil after
+ constructing the general VPATH list from the `VPATH' variable.
+
+Fri Nov 11 08:02:26 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (fatal, error): Made error messages for recursive runs be
+ shorter.
+
+Thu Nov 10 16:51:36 1988 Roland McGrath (mcgrath at basil.Berkeley.EDU)
+
+ * Version 3.18.
+
+ * read.c (read_makefile): Made it eat leading spaces and formfeeds
+ (but not tabs), like it's documented to.
+
+ * read.c (read_makefile): Let included makefiles determine the
+ default goal, as is done by System V Make.
+
+Tue Nov 1 19:03:08 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * variable.c (new_environ): Don't increment VCNT when a variable is
+ rejected.
+
+Fri Oct 28 16:54:15 1988 Roland McGrath (mcgrath at basil.Berkeley.EDU)
+
+ * Version 3.17.
+
+ * rule.c (convert_to_pattern): Don't use the same storage for a name
+ in two rules since new_pattern_rule may free this storage when a
+ rule is discarded.
+
+ * rule.c (new_pattern_rule): Undid useless change I made Oct 25.
+
+Thu Oct 27 19:17:53 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.16.
+
+ * GNUmakefile, Makefile: Fixed a typo in a comment.
+ * Makefile: Removed malloc.o from object file list.
+
+ * variable.c: Removed old debugging #define's for xmalloc and
+ xrealloc so non-ANSI cpp's won't barf.
+
+ * make.c (main): Made local array for temp file name static so
+ compilers that don't do auto aggregate initialization won't barf.
+
+ * read.c: Removed static declaration of copy_dep_chain since it is
+ no longer static.
+
+Tue Oct 25 16:59:30 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * rule.c (new_pattern_rule): If we threw out the new rule because it
+ matched an old one and OVERRIDE was zero, don't put the freed
+ pointer in the chain!
+
+Wed Oct 19 15:07:43 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Version 3.15.
+
+ * variable.c (expand_function: `sort'): Don't do the sorting and
+ writing out if there were no words in the first place.
+
+ * remake.c (remake_file): Only fail with a "no way to make" message
+ for a dependency (non-target) file. If we don't know how to remake
+ a target file, pretend it was successfully remade and is very new.
+
+ * remake.c (remake_file): Don't increment `files_remade' for a
+ non-target file we don't know how to remake.
+
+ * read.c (record_files): Don't die with "both : and :: entries" for
+ a file whose `is_target' flag is not set.
+
+Tue Oct 18 17:24:11 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * variable.c (expand_function: `patsubst', `subst'): Free the right
+ things!
+
+ * variable.c (expand_function: `subst'): Don't clobber the
+ pointer to the end of the second arg and then try to use it!!!
+
+Mon Oct 17 16:44:45 1988 Roland McGrath (mcgrath at catnip.Berkeley.EDU)
+
+ * variable.c (expand_function: `patsubst'): Don't clobber the
+ pointer to the end of the second arg and then try to use it!!!
+
+ * variable.c (expand_function: `word' function): Made it parse its
+ second argument correctly.
+
+ * ar.c (ar_touch): Return 1 rather than -1 for on errors.
+
+Sat Oct 15 15:12:16 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.14.
+
+ * GNUmakefile: Removed explicit rule for make.dvi since the built-in
+ implicit rule now works.
+
+ * rule.c (default_suffix_rules): Fixed .texinfo.dvi rule yet again
+ so that it really works, now that parens are counted.
+
+ * remake.c (update_file_1): Set FILE's `updated' flag after calling
+ remake_file if it failed or finished immediately.
+
+ * remake.c (update_file): Use the `updated' flag rather than the
+ command state to decide if a file was fully considered, and
+ therefore might give an "up to date" message.
+
+ * variable.c (expand_function): Made all functions that take more
+ than one argument count parens of the appropriate flavor in their
+ args and ignore commands nested in parens.
+
+Fri Oct 14 18:35:00 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * read.c (read_all_makefiles): Pass second arg to read_makefile for
+ default makefiles.
+
+Thu Oct 13 16:40:08 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.13.
+
+ * GNUmakefile: Added an explicit rule for make.dvi since the
+ built-in .texinfo.dvi implicit rule is screwed up.
+
+ * rule.c (default_suffix_rules): Added a comment that the
+ .texinfo.dvi rule does not work because of an ahem, feature of Make
+ that at some point will be fixed--er, enhanced to alleviate this
+ difficulty.
+
+ * rule.c (default_suffix_rules): Fixed Texinfo -> DVI rule (again).
+
+ * make.texinfo (Commands: Execution): Documented new competing for
+ standard input among children.
+
+ * commands.c (struct child): Added `good_stdin' flag to tell if this
+ child has the stdin that doesn't point into nirvana.
+ (good_stdin_used): New variable to tell if any child has the good
+ standard input.
+ (child_handler): Reset `good_stdin_used' if a dead child's
+ `good_stdin' flag is set.
+ (start_job): Give the new child the good standard input if
+ `good_stdin_used' is no set, and set the child's `good_stdin' flag
+ appropriately.
+
+ * rule.c (default_suffix_rules): Changed Texinfo -> DVI rule to work
+ better (I hope).
+
+ * read.c (read_all_makefiles): Stop reading default makefiles after
+ one is found.
+
+ * read.c (read_makefile): Reset `reading_filename' and
+ `reading_lineno_ptr' after recursing for an included makefile.
+
+ * GNUmakefile: New GNU Make-specific makefile that does everything
+ Makefile does plus distribution stuff, and doesn't contain any hacks
+ to try to work with Unix make.
+
+ * Makefile: Removed distribution stuff.
+
+ * make.c (main): Use mktemp to construct the names of temporary
+ files used for standard input makefiles.
+
+ * make.c (main): Don't turn standard input into a broken pipe.
+
+ * commands.c (start_job): Keep two extra file descriptors around: a
+ good standard input, and a bad one that reads from a broken pipe.
+ On the child side of the fork, if there are other children, give
+ this one the broken pipe so they won't compete; if this is the only
+ one, give it the good standard input.
+
+ * make.h: Declare notice_finished_file.
+
+ * commands.c (execute_file_commands): Use noticed_finished_file
+ after waiting for the child when there is only one job slot.
+
+ * remake.c (notice_finished_file): New function to re-check mtime's
+ and such things to be done when commands finish.
+ (update_file_1): Use notice_finished_file.
+
+ * commands.c (child_handler, execute_file_commands): Use new
+ variable `job_slots_used' to record the number of jobs currently
+ running, rather than diddling with `job_slots'.
+ (execute_file_commands): Increment `job_slots_used' before calling
+ start_job and decrement it on failure to avoid race condition.
+ If there is only one job slot, wait for the child to finish and
+ return its status so commands are run in linear order, as if there
+ were no parallelism.
+
+Wed Oct 12 15:59:03 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * remake.c (remake_file): Don't print a "No way to make" message for
+ targets whose `dontcare' flags are set.
+
+ * read.c (read_all_makefiles): Set the `dontcare' flag of the
+ `struct file' each default makefile added to the chain.
+
+ * file.h (struct file): Add `dontcare' member.
+
+ * read.c (read_all_makefiles): When no default makefiles are found,
+ put the names of all those tried in the `read_makefiles' chain so
+ they will be updated if possible, giving their `struct dep's'
+ `changed' members the value of 0 so we won't care if they cannot be
+ found or remade.
+
+ * make.texinfo (Makefiles: Remaking Makefiles): Documented that
+ default makefiles will be remade if not found.
+
+ * read.c (read_all_makefiles): If no default makefiles can be found,
+ go through the list of default names, trying to make one, stopping
+ if one is made.
+
+ * remake.c (remake_file): Set STATUS to 0 after successfully touching.
+
+ * dir.c (file_impossible, file_impossible_p): Don't clobber FILENAME
+ to "" and then try to to a strcmp on it!!!
+
+Mon Oct 10 16:09:18 1988 Roland McGrath (mcgrath at cinnamon.Berkeley.EDU)
+
+ * make.c (main): Don't do `dir_load (".")'.
+
+ * rule.c (count_implicit_rule_limits), vpath.c
+ (construct_vpath_list): Test the existence of a given directory by
+ `dir_file_exists_p (DIR, ".")' and assume that if this returns zero,
+ it means the directory really does not exist.
+
+ * dir.c (struct dirdata): Replaced with `struct directory' for
+ directories, each containing a chain of `struct dirfiles', one for
+ each file (real or impossible).
+ (dir_load): Removed.
+ (find_directory): New function to find the `struct directory' for a
+ named directory and return it (possibly creating a new one).
+ (dir_file_exists_p): Read the directory on the fly if its stream is
+ still valid (and ever was) if the file we're looking for is not
+ already in the hash tables.
+ (file_impossible, file_impossible_p, dir_name, print_dir_data_base):
+ Use the new directory/file scheme.
+
+ * make.texinfo: Miscellaneous editorial changes and clarifiactions.
+
+ * commands.c (struct child): Remove `environ' member.
+ (child_handler, start_job, execute_file_commands): Remove use of
+ `environ' member and new_environ.
+
+ * make.c (main): Call new_environ after reading makefiles.
+
+ * variable.h: Declare `new_environ' to return void.
+
+ * variable.c (new_environ): Put the environment in `environ' and
+ return void.
+
+Fri Oct 7 15:48:39 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Version 3.12.
+
+ * Makefile: Don't make the uncompressed tar file.
+
+ * variable.c (expand_function: `shell' function): Made it not expect
+ read to null-terminate the buffer.
+
+ * Makefile: Made it use a temporary symlink to . rather than a
+ temporary directory to make the distribution tar file.
+
+Thu Oct 6 17:52:35 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.11.
+
+ * make.texinfo: Fixed a line that got garbaged somehow.
+
+Mon Oct 3 16:14:39 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * make.c (main): Try to move back to the directory we started in
+ before re-exec ourself.
+
+ * remake.c (update_file_1): A double-colon target with no deps
+ always needs to be remade.
+
+ * remake.c (remake_file): Changed "No way to make" message to say
+ `target' rather than `file'.
+
+Sun Oct 2 12:50:47 1988 Roland McGrath (mcgrath at catnip.Berkeley.EDU)
+
+ * remake.c (update_file_1): Set FILE->update_status to the return
+ value of remake_file.
+
+ * rule.c (convert_to_pattern): Fixed swapped lengths passed to
+ xmalloc for source/target suffixes.
+
+ * make.texinfo: Documented that MAKEFLAGS and MFLAGS are read in
+ from makefiles. Updated the `Features' section a bit.
+
+ * make.c (main): Read switches from MAKEFLAGS and MFLAGS variables
+ after reading in makefiles.
+
+ * make.c (main): Put a line "/tmp/foo:;" rather than ".PHONY:
+ /tmp/foo" in front of temp files made for stdin makefiles.
+
+ * remake.c (update_file): Test the state of the right `struct file'
+ for double-colon files.
+
+ * make.c (main): Put a ".PHONY: /tmp/foo" line in front of temp
+ files made for stdin makefiles so they won't be remade when we
+ re-exec. Kludge-o-matic!!
+
+ * remake.c (update_goal_chain): Judge files as being finished based
+ on their `updated' flag, not their state.
+
+ * read.c (read_makefile): Don't check for FILENAME being "-".
+ (read_all_makefiles): Set each element of MAKEFILES to the name put
+ in READ_MAKEFILES by read_makefile, since read_makefile may free the
+ storage for the name it is passed, and someone might want to look at
+ the elements of MAKEFILES again.
+
+ * make.c (main): For each `-f' flag with arg `-' (standard input),
+ read standard input into a temp file and pass the temp file's name
+ to read_all_makefiles, after making sure it will not be remade.
+
+ * make.c (construct_makeflags): Always put out `-j1'.
+
+Sat Oct 1 00:19:59 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * commands.c (execute_file_commands): If commands are nothing but
+ whitespace, set the state to `cs_finished' before returning 0.
+
+ * make.c (decode_switches): Allocate space for args in stringlists
+ so they can be freed later.
+
+ * make.h: Declare `makelevel'.
+
+ * variable.c (makelevel): Moved to make.c (and made global).
+
+ * make.c (fatal, error): Print the makelevel if it's > 0.
+ (perror_with_name): Use error rather than calling fprintf directly.
+ (pfatal_with_name): Use fatal rather than fprintf and die.
+
+ * variable.c (new_environ): Don't put default variables (origin
+ `o_default') into the environment; they just take up space.
+
+ * read.c (read_makefile): Don't add FILENAME to the chain of read
+ makefiles if it's "-" (standard input).
+
+ * remake.c (update_goal_chain): Set STATUS correctly when nothing
+ happens (as well as in all other situations).
+
+ * make.c (construct_makeflags): Put a `-' before each switch and
+ spaces between them.
+
+ * Version 3.10.
+
+ * commands.c (wait_for_children): Don't check if `children' is nil.
+ This is the case when waiting for the child of a `shell' function.
+
+ * dir.c (dir_load): Don't add a hash-table entry for directory
+ DIRNAME and filename "" if DIRNAME doesn't exist.
+
+ * commands.c (execute_file_commands): Return 0 after start_job
+ returns 1 (failure) under the -n flag.
+
+ * remake.c (remake_file): Set the state to `cs_finished' when not
+ calling execute_file_commands.
+
+ * remake.c (update_goal_chain): Second arg is now MAKEFILES, nonzero
+ meaning to disable -t, -q, and -n for each target unless the target
+ was also given on the command-line.
+
+ * read.c (read_makefile): Enter the `struct file's for the makefiles
+ added to the `read_makefiles' `struct dep' chain.
+
+ * remake.c (update_goal_chain): Made it not enter the files for the
+ goals in the chain. It will already have been done.
+
+ * rule.c (convert_to_pattern): Null-terminate the names of targets
+ and deps of the pattern rules properly.
+
+Fri Sep 30 18:56:20 1988 Roland McGrath (mcgrath at nutmeg.Berkeley.EDU)
+
+ * make.c (main): Call install_default_pattern_rules.
+
+ * make.h: Declare copy_dep_chain.
+
+ * read.c (copy_dep_chain): Moved to make.c (and made global).
+
+ * make.c (main): Call update_goal_chain to update goals.
+ Update read makefiles and re-exec self if they change.
+
+ * remake.c (update_file): Make this function static.
+ (update_goal_chain): New function to update a `struct dep' chain of
+ goals, waiting until they are all finished before returning.
+
+ * make.h: Don't declare update_file. Declare update_goal_chain.
+
+ * make.c (main): Call snap_deps, etc. that were in read_all_makefiles.
+
+ * read.c (find_makefile): Removed this function.
+ (read_all_makefiles): Don't update makefiles, don't diddle with
+ pattern rules, don't call snap_deps, etc. Return a `struct dep'
+ chain of all makefiles read.
+ (read_makefile): Now takes two args: FILENAME and TYPE, which is 0
+ for a normal makefile, 1 for MAKEFILES variable or 2 for an included
+ makefile. Add a `struct dep' containing the name of the makefile
+ (as it was found in the search path for type 2s), and TYPE in the
+ `changed' member to the global `read_makefiles' chain.
+
+ * make.h, rule.c (displace_pattern_rules,
+ add_displaced_pattern_rules): Removed these functions.
+
+ * read.c (read_makefile): Variable-expand the name of an `include'd
+ makefile before calling find_makefile on it.
+
+ * file.c (snap_deps): If the `struct file' for a `struct dep'
+ already exists, free the `struct dep's `name' member before setting
+ it to nil (since this info is in the `struct file').
+
+ * read.c (copy_dep_chain): Made it copy each name rather than
+ leaving multiple `struct dep's with the same pointers.
+
+Thu Sep 29 19:08:13 1988 Roland McGrath (mcgrath at catnip.Berkeley.EDU)
+
+ * make.c (decode_switches): Fixed second decode_env_switches call to
+ use correct length of "MFLAGS" (6, not 5).
+
+ * read.c (read_makefile): Don't stop reading when readline returns
+ zero lines read. Only stop when the stream reaches EOF. This makes
+ it recognize the last line of a makefile without a newline.
+
+ * remake.c (remake_file): If we don't know how to make FILE, set its
+ command state to `cs_finished'.
+
+ * remake.c (update_file): Don't write the "up to date" message if
+ update_file_1 returned a nonzero status.
+
+Wed Sep 28 16:30:07 1988 Roland McGrath (mcgrath at catnip.Berkeley.EDU)
+
+ * commands.c (child_handler): Set the `update_status' member
+ properly for ignored errors.
+
+ * rule.c (convert_to_pattern): Made it not care about if the target
+ suffix comes before the source suffix in the .SUFFIXES list.
+
+ * make.texinfo: Misc editorial changes.
+
+ * commands.c (wait_for_children): Return immediately if `children'
+ is nil (there are no children).
+
+Tue Sep 27 15:33:14 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Version 3.09.
+
+ * commands.c (struct child): New member `command_ptr' to hold the
+ current position in the commands. The `commands' member is never
+ changed.
+ (start_job, child_handler, execute_file_commands): Use new method
+ for `commands' and `command_ptr' members.
+
+ * make.c (decode_env_switches): Skip past an invalid letter (instead
+ of looping forever).
+
+ * commands.c (struct child): Add `environ' member to hold the
+ environment for this child.
+ (execute_file_commands): Get a new environment from new_environ and
+ put in the the new `struct child's `environ' member.
+ (child_handler): When freeing a child, free its `commands' member, the
+ elements of its `environ' array and its `environ' member itself.
+ (start_job): Set `environ' to the child's `environ' member before
+ exec'ing the command.
+
+ * variable.h, variable.c (new_environ): Made it return the new
+ environment, not putting it in `environ'.
+
+ * remake.c (update_file): Don't give a "is up to date" message
+ unless no files were remade and the state went from `cs_not_started'
+ to `cs_finished', so repeat calls to finish jobs won't get the message.
+
+Mon Sep 26 16:26:08 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * Version 3.08.
+
+ * make.texinfo (Commands: Execution): Documented that children will
+ be waited for rather than killed.
+
+ * commands.c (fatal_error_signal): Wait for children.
+ (kill_children): Removed this function.
+
+ * make.c (main, die): Wait for children to die, don't kill them.
+
+ * variable.c (expand_function): Use wait_for_children.
+
+ * make.c (main): Use wait_for_children rather than child_handler.
+
+ * commands.c (wait_for_children): New function to block waiting for
+ children, insuring that child_handler is not called recursively.
+ (execute_file_commands, kill_children): Use wait_for_children.
+
+ * commands.c (child_handler): Start up additional commands in a
+ sequence after an ignored error.
+
+ * remake.c (update_file): Don't print "`foo' is up to date" messages
+ when update_file_1 returns while commands are executing.
+
+ * remake.c (update_file_1): Pass the file name to name_mtime, not
+ the bloody `struct file', dammit!!
+
+ * commands.c (child_handler): Print out the "*** ..." error message
+ when not under -i. (I somehow forgot this.)
+
+ * remake.c (update_file_1): Use name_mtime rather than file_mtime to
+ re-get the mtime of a file whose commands have finished.
+
+ * make.c (command_switches, decode_switches, decode_env_switches):
+ Make all switches that take string args allow them right after the
+ switch letter.
+
+ * commands.c (child_handler): Check for a child being the `shell'
+ function's command returning and set the global variable for
+ expand_function to check.
+
+ * variable.c (expand_function): For the `shell' function, instead of
+ waiting for the child shell ourselves, let child_handler do it and
+ loop around waiting for something to happen.
+
+ * make.c (print_version): Made the copyright year static, not dynamic.
+
+ * make.h, make.c: Remove construct_argv function.
+
+ * make.c (main): Say "no goal target" instead of "no target".
+
+ * make.texinfo (Commands: Parallel): Don't send SIGKILL.
+
+ * commands.c (kill_children): Don't send SIGKILL to children that
+ aren't killed by the first signal.
+
+ * make.c (main), commands.c (kill_children): Decide between SIGCHLD
+ and SIGCLD based on whether or not SIGCHLD is defined, not on USG.
+
+ * Makefile: Link make with $(LOADLIBES).
+
+ * read.c (construct_include_path): Fixed another bad xrealloc call.
+
+ * make.c (decode_switches): Fixed an xrealloc call with no first arg.
+
+Sat Sep 24 01:16:21 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * Version 3.07.
+
+ * remake.c (update_file_1): If deps are running, set state to
+ `cs_deps_running' and return 0. If deps are done, run commands.
+
+ * commands.c (child_handler): Made it delete non-precious targets
+ killed by fatal signals.
+
+ * make.texinfo: Documented parallelism.
+
+Fri Sep 23 16:52:27 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * remake.c (update_file_1): Don't return if FILE's state is
+ `cs_deps_running'. In that case, we need to run through and check
+ the states of all our dependencies.
+
+ * commands.c (execute_file_commands): Decrement `job_slots' after
+ starting a new job to run file commands.
+
+ * commands.c (start_job): Made it set the state to `cs_running'.
+
+ * make.c (main): Fixed usage of `g', `lastgoal', and `goals' in the
+ goal-making loop.
+
+ * commands.c (child_handler): When commands finish, set the
+ corresponding file's `update_status' and `updated' flags as
+ appropriate, and reset the modtimes of the file and any `also_make'
+ files it has.
+
+ * remake.c (remake_file): Don't re-set `last_mtime' and set `updated'.
+
+ * commands.c (fatal_error_signal): Don't swallow all the children
+ with a loop around `wait ((union wait *) 0)'!!!
+
+ * make.c (struct command_switch): Added `positive_int' type.
+ (switches): Added -j (job_slots).
+ (construct_makeflags, decode_switches, decode_env_switches):
+ Handle`positive_int'-type switches.
+
+ * glob.c (glob_vector): Rename local variable `vector' to `VeCtOr'.
+ This is said to avoid a conflict with some system's global `vector'
+ variable.
+
+ * variable.c (expand_function): Made the `shell' function use
+ construct_command_argv and do its own child control and piping.
+
+ * make.c (main): Turn standard input into a broken pipe after
+ reading in all makefiles (the last time it will be needed).
+
+ * commands.c (struct child): Remove `pipe_fd' member. We don't use
+ pipes any more.
+ (start_job): Return 0 for success, 1 or failure (rather than void).
+ Don't use pipes. Don't turn the child's stdin into a broken pipe.
+ (child_handler): Print "*** Error" messages when necessary.
+ Die on failed commands when -k was not given.
+ (execute_file_commands): Check the return of start_job and remove
+ the child from the chain and return failure if it is nonzero.
+
+ * make.c (die): New function to clean up and exit.
+ (fatal, pfatal_with_name): Use die.
+
+Thu Sep 22 14:27:11 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * commands.c (struct child): Added `commands', `pipe_fd', and
+ `noerror' members to keep track of info about a command thread.
+ (start_job): New function to start a job and update the argument
+ `struct child' to reflect its status.
+ (execute_file_commands): Merged run_file_commands back in.
+ Made it use new start_job function.
+
+ * rule.c (freerule): Don't free the `struct commands' of the
+ discarded rule. It may be used in more than one place.
+
+ * commands.c (execute_command_line): Made it not try to delete the
+ possibly partly-made file. The child_handler function will do this.
+ (fatal_error_signal): Ditto + call kill_children.
+
+ * make.h: Declare job_slots.
+
+ * make.c (main): Collect goals in a dep chain and run through this
+ chain waiting for a child, eliminating finished goals, updating all
+ remaining goals, and quitting if they fail and not -k.
+
+ * commands.c (child_handler): If called with SIG < 0, - SIG is the
+ max number of children to bury.
+
+ * commands.c (child_handler): If called with SIG as zero,
+ block waiting for running children.
+ (kill_children): Call child_handler with zero rather than SIGCHLD.
+
+ * remake.c (update_file_1): Use the `command_state' member of FILE
+ and its dependencies to determine what commands are running, what to
+ do, etc. If commands or dep commands are running when we are
+ called, return success (0). If commands finished since the last
+ time we were called, return their status.
+
+ * commands.h: Declare kill_children.
+
+ * commands.c: Define `struct child' to keep track of child
+ processes, with the chain in `children'.
+ (child_handler): New function to catch child-termination signals
+ (SIGCHLD, or SIGCLD for USG), store the returned status in the
+ appropriate structure, take the now-obsolete `struct child' out of
+ the chain, and free its storage.
+ (execute_file_commands): Put all of the stuff invloving running the
+ commands into new function run_file_commands. Execute_file_commands
+ now does process management for the commands, while
+ run_file_commands (which is run in a subprocess) runs the commands.
+ (kill_children): New function to kill all running children by
+ sending them signal SIG. If there are any children still living
+ after they are all sent SIG, they are all sent SIGKILL.
+
+ * make.c (main): Catch SIGCHLD (SIGCLD for USG) with child_handler.
+
+ * commands.h: Declare child_handler function.
+
+ * commands.c (execute_file_commands): Check the `command_state'
+ member of FILE and return 0 if it is `cs_running' or
+ `cs_deps_running' and return the stored status if it is `cs_finished'.
+
+ * file.h (struct file): Added `command_state' member.
+
+ * commands.c (execute_command_line): Add `$' to the list of
+ characters special to the shell.
+
+Wed Sep 21 15:57:41 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * read.c (read_all_makefiles): Call convert_to_pattern before
+ recomputing the limits after adding the displaced rules.
+
+ * make.c (main): Move calls to snap_deps, convert_to_pattern, and
+ build_vpath_lists to read_all_makefiles.
+
+ * read.c (read_all_makefiles): Install the default pattern rules
+ before checking to remake the makefiles, displace these rules before
+ reading in the makefiles, and then add the displaced rules to the
+ chain after reading in all the makefiles.
+
+ * make.c (main): Don't call install_default_pattern_rules or
+ count_implicit_rule_limits.
+
+ * make.h: Declare displace_pattern_rules and
+ add_displaced_pattern_rules.
+
+ * rule.c (displace_pattern_rules, add_displaced_pattern_rules): New
+ functions to stow the chain and add the stowed chain on the end of
+ the current chain.
+
+ * make.texinfo (Implicit: Search Algorithm): Fixed PREV reference.
+
+ * make.c (main): Call construct_include_path right after decoding
+ the switches.
+
+ * read.c (find_makefile): Use rename_file.
+
+ * file.h: Declare rename_file.
+
+ * file.c (rename_file): New function to rename a `struct file' and
+ put it in the correct hash bucket.
+
+ * read.c (find_makefile): New function to find and update a makefile.
+ (read_all_makefilese): Use find_makefile.
+ (read_makefile): Don't do updating. Removed UPDATEIT arg.
+
+ * remake.c (update_file_1): Took out setting the `updated' member to
+ -1 rather than 1 sometimes.
+
+ * make.c (main): Made it print version info before doing anything else.
+
+ * remake.c (library_file_mtime, f_mtime): Removed use of last two
+ arguments to vpath_search.
+
+ * rule.c (pattern_search): Removed use of last two arguments
+ to vpath_search.
+
+ * vpath.c (vpath_search, selective_vpath_search): Removed unused
+ DIRPREFIX and DPLEN args.
+
+ * read.c (read_makefile): Also turn off -n when updating makefiles.
+
+Tue Sep 20 17:01:10 1988 Roland McGrath (mcgrath at pepper.Berkeley.EDU)
+
+ * Makefile: Put tags files in the tarfile.
+
+ * read.c (read_makefile): Get the modtime of the makefile via a stat
+ call so that a later file_mtime call won't do VPATH search for it.
+
+ * read.c (read_makefile): Don't turn off -t and -q if the makefile
+ was a command-line target.
+
+ * make.c (main): Enter command-line targets as files and set their
+ `cmd_target' members.
+
+ * file.h (struct file): Added `cmd_target' member.
+
+ * read.c (read_makefile): Temporarily turn off -t and -q while
+ updating makefiles.
+
+ * make.c (main): Don't use arg 0 from other_args (which is now
+ argv[0]; i.e., the program's name).
+
+ * read.c (read_makefile): Only return nonzero if commands were
+ actually run to remake the makefile.
+
+ * remake.c (update_file_1): Set FILE->updated to -1 if no commands
+ were actually run (because no update was done or -t was given).
+
+ * make.c (decode_switches): Fixed bug wherein xrealloc was passed
+ bad args if it tried to expand other_args->list.
+
+ * read.c (read_all_makefiles): Made it not look at the `MAKE'
+ variable, just use argv[0].
+
+Sun Sep 18 17:34:11 1988 Roland McGrath (mcgrath at paris.Berkeley.EDU)
+
+ * read.c (rerun_make): New function to re-exec make.
+
+ * make.c (construct_makeflags, construct_argv): New functions to
+ construct the `MAKEFLAGS' variable and to construct an arg list from
+ parsed info.
+
+ * read.c (read_makefile): New arg UPDATEIT, if nonzero, says to
+ update the makefile as a target before reading it in. When reading
+ included makefiles, pass this as zero. Now returns nonzero if the
+ makefile was updated, zero if not.
+ (read_all_makefiles): Pass a nonzero UPDATEIT arg to read_makefile
+ for all default and -f makefiles and all makefiles from the
+ `MAKEFILES' variable. If any of the makefiles has changed, re-exec
+ self to re-read them.
+
+ * remake.c (update_file): Print a "File `foo' up to date'" message
+ under -p.
+
+ * commands.c (execute_file_commands): Allocate one byte for each of
+ $^ and $< rather than zero if they are to be empty.
+
+Fri Sep 16 13:59:59 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Version 3.06.
+
+ * make.c (command_switches): Fixed entry for `-o' switch.
+
+ * make.texinfo: Renamed -c switch to -C.
+
+ * make.c: Renamed -c switch to -C.
+
+ * Miscellaneous de-linting.
+
+ * read.c (record_files): Made it not free the storage for the name
+ if it started with `./' and was therefore not quite the same as in
+ the `struct file'.
+
+ * read.c (record_files): If commands were specified twice, the error
+ message specifies in what files and at what line numbers.
+
+ * make.c (main): If any of the signals we usually fatal on were
+ ignored by the parent (probably a shell), ignore them.
+
+ * make.c (main): Print version info for -v, -p, or -d.
+ (print_data_base): Don't print version info. It will be done in main.
+
+ * variable.c: Increased number of hash buckets to 257.
+
+ * file.c: Increased number of hash buckets to 1007.
+
+ * rule.c (count_implicit_rule_limits): Moved comptation of
+ `maxsuffix' to convert_to_pattern, since that function uses
+ `maxsuffix', and must be called before count_implicit_rule_limits.
+
+ * rule.c (pattern_search): If an existent (non-intermediate)
+ dependency was found via a terminal rule, set its
+ `tried_implicit' flag, so it will never have implicit rule search done.
+
+ * glob.c: Bug fix to avoid alloca(0).
+
+ * arscan.c: USG and Sun386i fixes.
+
+Thu Sep 15 19:40:26 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * make.texinfo: Fixed some typos and spelling errors.
+
+Wed Sep 7 14:20:39 1988 Roland McGrath (mcgrath at helen.Berkeley.EDU)
+
+ * make.c (decode_switches): Fixed bug wherein a bad option would
+ give a useless error message and loop forever.
+
+Tue Sep 6 14:36:02 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.texinfo: Documented `shell' function.
+
+ * variable.c (expand_function): New function `shell', does
+ backquote-style command expansion of its arg.
+
+ * commands.c (execute_command_line): Second arg OUTBUF, if not nil,
+ gets filled in with a malloc'd buffer containing the piped stdout of
+ the command.
+ (execute_file_commands): Use above (pass nil).
+
+Mon Sep 5 17:03:49 1988 Roland McGrath (mcgrath at hecuba.Berkeley.EDU)
+
+ * Makefile: Added copyright notice.
+ Added a comment about defining `NO_MINUS_C_MINUS_O' if necessary.
+
+ * Version 3.05.
+
+ * rule.c (default_suffix_rules): Don't pass `-o' switches with `-c'
+ switches if `NO_MINUS_C_MINUS_O' is #define'd.
+
+ * make.texinfo: Documented `GNUmakefile'.
+
+ * read.c (read_all_makefiles): Made it try default makefile
+ `GNUmakefile' before others.
+
+ * make.texinfo: Added new-style Texinfo header thingies.
+
+Sat Sep 3 18:09:39 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * Version 3.04.
+
+ * make.texinfo (Chained Rules): Added a @cindex about using
+ .PRECIOUS to preserve intermediate files.
+
+ * remake.c (update_file_1): Made it not just return before executing
+ commands under -p.
+
+ * rule.c (default_pattern_rules, default_variables): Made it use
+ `$(AR)' for `ar r' (to put files in archives).
+
+ * vpath.c (build_vpath_lists): Made it recursively expand the
+ `VPATH' variable (by using variable_expand instead of lookup_variable).
+
+ * read.c (conditional_line): Made it not swallow whitespace after
+ the comma in an `ifeq' using the `(a,b)' syntax.
+
+ * rule.c (count_implicit_rule_limits): Made it not crash if a
+ pattern rule dep begins with `/'.
+
+Sun Aug 28 15:51:12 1988 Roland McGrath (mcgrath at homer.Berkeley.EDU)
+
+ * make.texinfo: Clarified that the arg to the `origin' function is a
+ variable *name*, not a reference.
+
+ * make.texinfo: Clarified that both -Idir and -I dir are allowed.
+
+Sat Aug 27 13:49:28 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * remake.c (remake_file): Made touching phonies work right.
+
+Wed Aug 24 20:40:48 1988 Roland McGrath (mcgrath at nutmeg.Berkeley.EDU)
+
+ * make.texinfo: Removed reference to `RANLIB' variable.
+
+ * Version 3.03.
+
+ * variables.c (expand_function): Added `origin' function.
+ * make.texinfo: Documented same.
+
+ * read.c (record_files): Made double-colon entries work.
+
+Sat Aug 20 21:09:39 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (collapse_continuations): Bug fix from RMS.
+
+ * rule.c (install_default_pattern_rules): Made it set the
+ `in_use' flag of the created rules to zero, rather than letting
+ it be random garbage.
+
+ * rule.c (pattern_search): Fixed putting `also make' targets into
+ file strucutres.
+
+ * read.c (record_files): Fixed bug which made double-colon entries
+ make it read off into space.
+
+ * make.c (decode_switches): Made it understand `ignored' switches
+ rather than dumping core.
+
+Sun Aug 14 16:49:00 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * read.c (read_makefile): Made `include' filenames be
+ variable-expanded.
+
+ * read.c (read_makefile): Fixed an error message.
+
+ * read.c (read_makefile): Made it accept ^L's as whitespace.
+ * make.c (next_token, end_of_token): Ditto.
+
+ * vpath.c (vpath_search): Fixed it so that the general VPATH (from
+ the variable) is always checked, even if a selective VPATH (from a
+ directive) matched the filename.
+
+Sat Aug 13 14:20:46 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (decode_switches, main): Made the command switches be
+ processed from a table of switches, variables, and types. No
+ functions are passed argc and argv any more. They are passed arrays
+ of strings they need to process.
+ * read.c (read_all_makefiles): Made it take an array rather than
+ argc and argv.
+ (construct_include_path): Ditto.
+
+ * make.c (collapse_continuations): Made it work right (I hope).
+
+ * make.texinfo: Minor editorial changes.
+
+ * read.c (read_makefile): Minor speed improvement by freeing and
+ then mallocing something rather than reallocing it to avoid the
+ unnecessary bcopy.
+
+Thu Aug 11 00:10:43 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.texinfo: Fixed some unquoted @'s.
+
+ * make.texinfo: Documented multiple-target pattern rules.
+ Miscellaneous minor editorial changes and corrections.
+
+ * make.texinfo (Implicit: Catalogue of Rules): Removed the list of
+ variables. That's what the next section is for.
+ (Implicit: Implicit Variables): Made it agree with reality.
+
+Wed Aug 10 00:55:39 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * variable.c (print_variable_data_base): Fixed bug which made -p
+ dump core. (This was a really idiotic bug.)
+
+ * rule.c (pattern_search): Fixed a bug which made it make the
+ `also_make' member of the file in question nil if the first of
+ the successful rule's targets was the matching one.
+ Made it use only as much storage as necessary in the `also_make'
+ member.
+ (create_pattern): Made it use only as much storage as necessary in
+ the `lens' and `suffixes' members of the created rule.
+
+ * remake.c (library_file_mtime): Made it `static'.
+
+ * file.c: Added a declaration for `errno', which is declared in some
+ <errno.h>'s, but not all.
+
+ * file.h (struct file): Added `also_make' member for multiple-target
+ implicit rules.
+ * rule.c (pattern_search): Made it put the names of files updated by
+ the given file's commands in its `also_make' member.
+ * remake.c (update_file_1): Made it mark the files in a file's
+ `also_make' member as updated when the file is updated.
+
+ * variable.c (try_variable_definition): Fixed a bug which made it
+ define a variable with the name of the whole definition when there
+ was no space before the = or :=.
+
+ * make.texinfo (Features): Made the changes which were made in RCS
+ revision 2.7 but somehow lost since then. Added -W.
+
+Tue Aug 9 10:04:50 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * variable.h: Added `o_default' to `enum variable_origin'.
+ * variable.c (print_variable_data_base): Made it print the origins of
+ the variables.
+ * rule.c (install_default_pattern_rules): Made it define the default
+ variables with origin `o_default'.
+
+ * make.texinfo: Documented -W.
+
+ * make.c (decode_switches, main): Added the -W flag to give files a
+ time-stamp of now, for a `what if' effect when used with -n.
+
+ * commands.c (print_commands): Made it say `(built-in)' for commands
+ that are built into the default ruleset.
+
+ * read.c (record_file): Made .SUFFIXES get its deps frontwards (again).
+ * rule.c (set_default_suffixes, convert_to_pattern): Made it read
+ .SUFFIXES's deps frontwards, so the converted rules will not be in
+ reverse order.
+
+ * rule.c (new_pattern_rule): Fixed a bug wherein it would keep
+ searching after it had removed a matching rule and ended up diddling
+ with freed storage.
+
+ * rule.c (freerule): Made it take the given rule off the chain.
+ (new_pattern_rule, count_implicit_rule_limits): Use freerule to
+ remove rules from the chain.
+
+ * vpath.c (construct_vpath_list): Made it return after cleaning out
+ all previous searchpaths when given a nil DIRPATH arg, so it won't
+ go into the construction code and dump core dereferencing a nil
+ pointer.
+
+ * variable.c (patsubst_expand): Fixed a bug which made it not match
+ correctly and sometimes dump core.
+
+Mon Aug 8 16:35:48 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * rule.c (default_suffix_rules): Made the .texinfo.dvi rule remove
+ the files used in the comparison to determine whether or not a
+ second TeX run is necessary.
+
+ * make.texinfo: Fixed some overfull TeX hboxes.
+
+ * make.texinfo (Implicit: Catalogue of Rules): Fixed a Texinfo error.
+
+ * rule.c (create_pattern_rule): Fixed bug wherein index was not
+ being passed its second arg.
+
+ * read.c (getline): Merged back into readline.
+
+ * rule.c (default_suffixes, default_suffix_rules,
+ default_variables): Added .texinfo.info rule.
+ * make.texinfo (Implicit: Catalogue of Rules): Documented
+ .texinfo.dvi and .texinfo.info rules.
+
+ * make.texinfo (Top): Changed `last updated' date to be correct (for
+ the last time it was updated, not today). Changed `for version
+ 3.00' since it's not going to be called that.
+
+Sat Aug 6 19:51:10 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * commands.c (print_commands): Added this function to print the
+ contents of a `struct commands' for -p.
+ * rule.c (print_rule_data_base): Use above.
+ * file.c (print_file_data_base): Ditto.
+
+ * rule.c (count_implicit_rule_limits, new_pattern_rule,
+ install_pattern_rule, print_rule_data_base): Made it understand the
+ changed `struct rule' and act accordingly.
+ (freerule): Added this function to free all the storage used by a rule.
+
+ * rule.c (pattern_search): Made it grok multiple targets of pattern
+ rules. The matching is done properly, but at present, only the
+ matching pattern's target is used to give deps and commands.
+
+Fri Aug 5 18:00:29 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * rule.c (struct rule): Changed name, namelen, and patsuffix members
+ to targets, lens, and suffixes, which are arrays, for multiple targets.
+ (create_pattern_rule): Now takes first arg TARGETS, a nil-terminated
+ array of targets, rather than a single target and patsuffix pointer.
+
+ * read.c (record_files): If it finds an implicit pattern rule, it
+ collects all the targets into an array and passes the whole thing to
+ create_pattern_rule. If there are non-pattern targets, it is a
+ fatal error.
+
+Tue Aug 2 15:06:38 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (readline): Split backslash-newline checking from reading
+ and buffer-expanding.
+ (getline): Created to do the reading and buffer-expanding formerly
+ done in readline.
+
+ * rule.c (pattern_search): Made it reject nonterminal match-anything
+ rules when a specific rule has matched, rather than rejecting
+ terminal match-anything rules in this case.
+
+ * rule.c (convert_to_pattern): Fixed a bug caused when the change to
+ make it only recognize two-suffix rules whose target suffixes
+ precede their dependency suffixes which made it work in the opposite
+ direction (even worse than it started out).
+
+ * rule.c (pattern_search): Made it reject nonterminal match-anything
+ rules as intermediate targets when searching for both real and
+ intermediate dependencies, rather than only when searching for
+ intermediate ones.
+
+Sun Jul 31 00:33:56 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * rule.c (convert_to_pattern): Made it only recognize two-suffix
+ rules whose target suffix comes before the dependency suffix in the
+ .SUFFIXES list.
+
+ * variable.c (define_automatic_variables): Made all automatic
+ variables be defined with origin `o_automatic'.
+
+ * variable.h: Added `o_automatic' to `enum variable_origin'
+
+ * file.c (remove_intermediates): Made it not print an error message
+ if the error was that the file does not exist.
+
+ * rule.c: Removed `recursive' member from `struct rule'.
+
+ * remake.c (library_file_mtime): Made it not use the directory hash
+ functions, as reading in and hashing /usr/lib and /lib is slow and
+ most likely unnecessary.
+
+ * remake.c (remake_file): Changed message from ``No specification
+ for making'' to ``No way to make'' so it will be short enough that
+ most filenames will fit on a line.
+ Made it look at the `recursive' member of the `struct commands',
+ rather than of the `struct file' (which no longer has one).
+
+ * commands.c (execute_file_commands): Made it look at the
+ `recursive' member of the `struct commands', rather than of the
+ `struct file' (which no longer has one).
+
+ * file.h: Removed `recursive' member from `struct file'.
+
+ * commands.h: Added `recursive' member to `struct commands'.
+
+ * dep.h: Removed unused `quotedparen' member from `struct nameseq'
+ and `struct dep'.
+
+ * read.c (dequote): Removed this function.
+ (multi_glob): Removed reference to `quotedparen' member of
+ a `struct nameseq' and calls to dequote.
+
+ * read.c (record_files): Made it set the stem for $* for all static
+ pattern rules, not just those with commands given at that time.
+ Removed check for recursive commands.
+ Made it check for pairs of .SUFFIXES dependencies to reject as
+ default goals as well as single ones (that don't start with dots).
+ (read_makefile): Added checks for recursive commands to set
+ the `recursive' flag in the `struct commands'.
+
+Sat Jul 30 15:47:23 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (find_next_token): Made the LENGTHPTR arg optionally nil.
+
+ * make.c: Removed `files_made' variable which is defined static in
+ remake.c and used only there.
+ (main): Cleaned up somewhat.
+ (decode_switches): Cleaned up a bit. Made an unknown option be a
+ non-fatal error.
+ (decode_env_switches): Made LEN arg unsigned. Cleaned up.
+ (print_version): Made it say ``see the source'' rather than ``see
+ the source file'', since there is more than one.
+
+ * file.h: Made `num_intermediates' declared unsigned.
+
+ * file.c: Made `num_intermediates' variable unsigned.
+ (remove_intermediates): Removed unused FORMAT arg.
+ (enter_file): Made it handle double-colon files properly, adding the
+ new entry as the old entry's prev pointer.
+
+ * dir.c: Re-indented the `struct dir' definition to be right.
+ (dir_load): Cleaned up slightly.
+ (file_exists_p): Removed comment saying we could use `access', since
+ that is a bad idea (except for setuid programs). Cleaned up slightly.
+
+ * commands.c: Changed some comments slightly.
+ (execute_file_commands): Cleaned up a bit. Changed some comments,
+ added others. Moved freeing of storage for $^ and $? to the same
+ place as for the other automatic variables.
+ (execute_command_line): Made `#' trigger a shell.
+ Added some comments. Cleaned up a bit. Put all the special chars
+ that trigger shells into an array easily changeable at the top.
+
+ * ar.c: Added comments explaining each function.
+ (ar_scan_1): Merged into ar_member_date.
+ (ar_member_date): Changed call to ar_scan_1 to the body of that
+ function.
+ (ar_member_date_1): Simplified to a ?: expression rather than an
+ if-else statement.
+ (ar_member_touch): Changed error handling around a bit.
+ None of these errors are fatal now.
+
+ * variable.c (subst_expand): Added a new arg BY_WORD, to do substs
+ only on full words.
+ (patsubst_expand): Fixed bug which made calls whose patterns
+ contained no `%' to not work correctly, by using above.
+ (variable_expand): Pass extra arg to `subst_expand'.
+
+ * variable.c (expand_function): Fixed bug which made `foreach' calls
+ with one-word lists run off into never-never land.
+
+Fri Jul 29 20:12:36 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * variable.c (expand_function): Made a very minor speed improvement
+ by avoiding an unnecessary strlen call.
+
+Wed Jul 27 16:01:47 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * rule.c (default_suffixes): Rearranged the list somewhat; added
+ `.el' and `.elc' to speed things up (especially when building
+ Emacs), for the same reason `.h' is there.
+
+ * read.c (record_files): Changed `lineno' from `long' to
+ `unsigned int'.
+
+Sun Jul 24 02:15:30 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * variable.c (expand_function): Eliminated use of `wstok'
+ because it is non-reentrant and unreliable.
+ Fixed a minor bug which would cause something not to be freed.
+ * make.c (wstok): Removed `wstok' because it is no longer used.
+
+ * variable.c (expand_function): Made `foreach' function put
+ spaces between output texts like it's supposed to.
+
+Sat Jul 23 17:32:55 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * rule.c (default_suffixes, default_suffix_rules): Added rule
+ to make %.dvi from %.texinfo.
+
+ * dir.c (print_dir_data_base): Made it say a bit more.
+
+Fri Jul 22 23:13:16 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * make.c (print_data_base): Split this function up into one
+ for each thing.
+ * variable.c (print_variable_data_base): One of the above.
+ * rule.c (print_rule_data_base): Ditto.
+ * file.c (print_file_data_base): Ditto.
+ * dir.c (print_dir_data_base): Ditto.
+
+ * rule.c (install_pattern_rule): Fixed a bug which caused the
+ terminal and recursive flags to always be zero for rules
+ entered by this function.
+
+ * make.texinfo (Rules: Double-colon): Added a paragraph
+ explaining the purpose of double-colon rules.
+
+ * make.texinfo (Implicit: Catalogue of Rules): Updated to
+ reflect new C++, TeX, Web, and Texinfo rules. Other slight
+ editorial changes.
+
+ * commands.c (execute_file_commands): Fixed a bug wherein
+ random memory could get written for files with no deps.
+
+Wed Jul 20 19:30:31 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * read.c (readline): Fix bug wherein it would not recognize a
+ backslash-newline if the buffer filled up and was enlarged
+ right before reading the newline.
+
+Tue Jul 19 19:55:02 1988 Roland McGrath (mcgrath at chilli.Berkeley.EDU)
+
+ * read.c: Added default suffix rules for .cc (using $(C++),
+ which defaults to `g++', and $(C++FLAGS)), .tex, .dvi, .web
+ and .cweb (using $(TEX), $(WEAVE), $(TANGLE), $(CWEAVE) and
+ $(CTANGLE)).
+
+Sat Jul 16 21:24:28 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Made error formats use %u rather than %ld for line numbers,
+ which are now unsigned int's rather than long's.
+
+ * read.c (conditional_line): Fixed some bugs caused by use of
+ unsigned int rather than int in one place.
+
+ * read.c (conditional_line): Put the info about active
+ conditionals in a struct.
+ (read_makefile): Make a new struct of info about conditionals
+ for included makefiles and restore the old one after the
+ included makefile has been read.
+
+ * read.c (read_makefile): Don't try to read a makefile with
+ name "" after giving an error message because an `include'
+ directive gave no filename.
+
+ * read.c (read_makefile): Give an error message for
+ non-whitespace text after the filename in an `include' directive.
+
+ * make.c (error): Take five args, like `fatal'. It managed to
+ lose with only two. Is there a better way to do this without vfprintf?
+
+ * read.c (read_makefile): Commands consisting of only
+ whitespace are not the same as no commands. I thought I'd
+ fixed this bug months ago; it seems to have come back.
+
+ * make.c (collapse_continuations): All whitespace around a
+ backslash-newline combination is turned into a single space.
+
+ * Added COPYING file and copyright notices to all files.
+
+ * make.texinfo (Running: Goals): Fix a typo.
+
+ * read.c (do_define): Take an arg for the origin of the
+ variable being defined.
+ (read_makefile): Grok `override define'.
+
+ * make.texinfo (Variables: Override Directive, Defining):
+ Document the `override define' combination directive.
+
+ * ar.c (ar_member_date): Make a 0 return from `ar_scan' return
+ (time_t) -1 (nonexistent file), rather than (time_t) 0, which,
+ when put in the `struct file', makes `file_mtime' try to get
+ the mtime over and over again.
+
+ * variable.c (pattern_matches): Fix a bug that made patterns
+ not beginning with `%' never match.
+
+Fri Jul 15 21:01:44 1988 Roland McGrath (mcgrath at tully.Berkeley.EDU)
+
+ * Took Make out of RCS.
+
+ * Split the monolithic `make.c' into several smaller files.
+
+
+
+Copyright (C) 1988-2009 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/ChangeLog.2 b/ChangeLog.2
new file mode 100644
index 0000000..0816454
--- /dev/null
+++ b/ChangeLog.2
@@ -0,0 +1,6653 @@
+2000-06-22 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): Increment commands_started before the
+ special check for ":" (empty command) to avoid spurious "is up to
+ date" messages. Also move the test for question_flag after we
+ expand arguments, and only stop if the expansion provided an
+ actual command to run, not just whitespace. This fixes PR/1780.
+
+2000-06-21 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): If we find a semicolon in the target
+ definition, remember where it was. If the line turns out to be a
+ target-specific variable, add back the semicolon and everything
+ after it. Fixes PR/1709.
+
+2000-06-19 Paul D. Smith <psmith@gnu.org>
+
+ * config.h-vms.template: #define uintmax_t for this system.
+ * config.ami.template: Ditto.
+ * config.h.W32.template: Ditto.
+
+ * configure.in: We don't use select(2) anymore, so don't bother
+ checking for it.
+ * acconfig.h: Ditto.
+ * acinclude.m4: Ditto.
+
+ * file.c (all_secondary): New static global; if 1 it means
+ .SECONDARY with no prerequisites was seen in the makefile.
+ (snap_deps): Set it appropriately.
+ (remove_intermediates): Check it.
+ (num_intermediates): Remove this global, it's not used anywhere.
+ (considered): Move this to remake.c and make it static.
+
+ * NEWS: Document the change to .SECONDARY.
+ * make.texinfo (Special Targets): Document the change to .SECONDARY.
+
+ * implicit.c (pattern_search): Remove the increment of
+ num_intermediates; it's not used.
+ * filedef.h: Remove num_intermediates and considered.
+
+ * function.c (handle_function): If the last argument was empty, we
+ were pretending it didn't exist rather than providing an empty
+ value. Keep looking until we're past the end, not just at the end.
+
+ * implicit.c (pattern_search): Multi-target implicit rules weren't
+ expanding the "also made" targets correctly if the pattern didn't
+ contain a slash but the target did; in that case the directory
+ part wasn't being added back to the stem on the "also made"
+ targets. Reported by Seth M LaForge <sethml@newtonlabs.com>, with
+ a patch.
+
+2000-06-17 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS.template (DESTDIR, bindir, datadir, libdir)
+ (infodir, mandir, includedir): Support installation under a
+ non-default DESTDIR.
+
+ * remake.c (f_mtime): Fix the spelling of __MSDOS__.
+
+ * configh.DOS.template (HAVE_FDOPEN, HAVE_MKSTEMP): Define.
+
+2000-06-14 Paul D. Smith <psmith@gnu.org>
+
+ * acinclude.m4 (pds_WITH_GETTEXT): rewrite fp_WITH_GETTEXT and
+ rename it to avoid confusion. This version is very specific: it
+ won't accept any gettext that isn't GNU. If the user doesn't
+ explicitly ask for the included gettext, we look to see if the
+ system gettext is GNU (testing both the actual libintl library,
+ and the libintl.h header file). Only if the system gettext is
+ really GNU gettext will we allow it to be used.
+ (pds_CHECK_SYSTEM_GETTEXT): A helper function.
+
+2000-06-13 Paul D. Smith <psmith@gnu.org>
+
+ * gettext.h: If we have libintl.h, use that instead of any of the
+ contents of gettext.h. We won't check for libintl.h unless we're
+ using the system gettext.
+
+ * function.c (func_word): Clarify error message.
+
+2000-06-10 Paul Eggert <eggert@twinsun.com>
+
+ Support nanosecond resolution on hosts with 64-bit time_t and
+ uintmax_t (e.g. 64-bit Sparc Solaris), by splitting
+ FILE_TIMESTAMP into a 30-bit part for nanoseconds, with the
+ rest for seconds, if FILE_TIMESTAMP is at least 64 bits wide.
+
+ * make.h: Always define FILE_TIMESTAMP to be uintmax_t, for
+ simplicity.
+
+ * filedef.h (FILE_TIMESTAMP_HI_RES, FILE_TIMESTAMP_LO_BITS)
+ (UNKNOWN_MTIME, NONEXISTENT_MTIME, OLD_MTIME)
+ (ORDINARY_MTIME_MIN, ORDINARY_MTIME_MAX): New macros.
+ (FILE_TIMESTAMP_STAT_MODTIME): Now takes fname arg. All uses changed.
+ (FILE_TIMESTAMP_DIV, FILE_TIMESTAMP_MOD)
+ (FILE_TIMESTAMP_FROM_S_AND_NS): Remove.
+ (FILE_TIMESTAMP_S, FILE_TIMESTAMP_NS): Use shifts instead of
+ multiplication and division. Offset the timestamps by
+ ORDINARY_MTIME_MIN.
+ (file_timestamp_cons): New decl.
+ (NEW_MTIME): Now just the maximal timestamp value, as we no longer use
+ -1 to refer to nonexistent files.
+
+ * file.c (snap_deps, print_file): Use NONEXISTENT_MTIME,
+ UNKNOWN_MTIME, and OLD_MTIME instead of magic constants.
+ * filedef.h (file_mtime_1): Likewise.
+ * main.c (main): Likewise.
+ * remake.c (update_file_1, notice_finished_file, check_dep)
+ (f_mtime, name_mtime, library_search): Likewise.
+ * vpath.c (selective_vpath_search): Likewise.
+
+ * remake.c (f_mtime): Do not assume that (time_t) -1 equals
+ NONEXISTENT_MTIME. When futzing with time stamps, adjust by
+ multiples of 2**30, not 10**9. Do not calculate timestamp
+ adjustments on DOS unless they are needed.
+
+ * commands.c (delete_target): Do not assume that
+ FILE_TIMESTAMP_S yields -1 for a nonexistent file, as that is
+ no longer true with the new representation.
+
+ * file.c (file_timestamp_cons): New function, replacing
+ FILE_TIMESTAMP_FROM_S_AND_NS. All uses changed.
+ (file_timestamp_now): Use FILE_TIMESTAMP_HI_RES instead of 1 <
+ FILE_TIMESTAMPS_PER_S to determine whether we're using hi-res
+ timestamps.
+ (print_file): Print OLD_MTIME values as "very old" instead of
+ as a timestamp.
+
+2000-05-31 Paul Eggert <eggert@twinsun.com>
+
+ * remake.c (name_mtime): Check for stat failures. Retry if EINTR.
+
+2000-05-24 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (decode_switches): The "positive_int" switch uses atoi()
+ which succeeds for any input, and doesn't notice if extra,
+ non-digit text is after the number. This causes make to mis-parse
+ command lines like "make -j 5foo" as "make -j5" (ignoring "foo"
+ completely) instead of "make -j0 5foo" (where "5foo" is a
+ target). Fix this by checking the value by hand. We could use
+ strtol() if we were sure of having it; this is the only
+ questionable use of atoi() I found so we'll just stick with that.
+ Fixes PR/1716.
+
+ * i18n/ja.po, i18n/nl.po, i18n/pt_BR.po: New translation files.
+ * configure.in (ALL_LINGUAS): Added pt_BR.
+
+2000-05-22 Paul Eggert <eggert@twinsun.com>
+
+ * remake.c (f_mtime): Fix bug when handling future odd
+ timestamps in the WINDOWS32 case. Do not bother initializing
+ static var to zero. Simplify code that works around WINDOWS32
+ and __MSDOS__ time skew brain damage.
+
+2000-05-22 Paul Eggert <eggert@twinsun.com>
+
+ * job.c: Don't include time.h, as make.h already does this.
+
+2000-05-22 Paul Eggert <eggert@twinsun.com>
+
+ * configure.in (AC_CHECK_HEADERS): Add sys/time.h.
+ (AC_HEADER_TIME): Add.
+ (clock_gettime): Prefer -lrt to -lposix4, for Solaris 7.
+ (gettimeofday): Add check for standard version of gettimeofday.
+ This merges changes written by Paul D. Smith.
+
+ * file.c (file_timestamp_now): Use gettimeofday if available
+ and if clock_gettime does not work. Don't bother with
+ high-resolution clocks if file timestamps have only one-second
+ resolution.
+
+ * make.h <sys/time.h>: Include, conditionally on the usual
+ TIME_WITH_SYS_TIME and HAVE_SYS_TIME_H macros. This is needed
+ for gettimeofday.
+
+2000-05-20 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): We weren't keeping makefile names around
+ unless there was a rule defined in them; but now we need to keep
+ them for variables as well. Forget trying to be fancy: just keep
+ every makefile name we successfully open.
+
+ * remote-cstms.c (start_remote_job_p): Change DB_EXTRA (?) to DB_JOBS.
+
+2000-05-17 Paul Eggert <eggert@twinsun.com>
+
+ * commands.c (chop_commands): Ensure ctype macro args are nonnegative.
+ * expand.c (variable_expand_string): Likewise.
+ * function.c (subst_expand, lookup_function, msdos_openpipe):
+ Likewise.
+ * job.c (vms_redirect, start_job_command, new_job, child_execute_job,
+ construct_command_argv_internal, construct_command_argv): Likewise.
+ * main.c (decode_env_switches, quote_for_env): Likewise.
+ * misc.c (collapse_continuations, end_of_token, end_of_token_w32,
+ next_token): Likewise.
+ * read.c (read_makefile, do_define, conditional_line,
+ find_char_unquote,get_next_mword): Likewise.
+ * variable.c (try_variable_definition): Likewise.
+ * vpath.c (construct_vpath_list): Likewise.
+ * w32/pathstuff.c (convert_vpath_to_windows32): Likewise.
+
+2000-05-10 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * main.c (main) [__MSDOS__]: Add SIGFPE to signals we block when
+ running child programs, to prevent Make from dying on Windows 9X
+ when the child triggers an FP exception.
+
+2000-05-08 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (find_directory) [WINDOWS32]: If we strip a trailing "\"
+ from the directory name, remember to add it back. The argument
+ might really be inside a longer string (e.g. %Path%) and if you
+ don't restore the "\" it'll be truncated permanently. Fixes PR/1722.
+ Reported by <steven@surfcast.com>
+
+2000-05-02 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal) [WINDOWS32]: Added "rd"
+ and "rmdir" to the list of command.com commands.
+ Reported by Elod Horvath <Elod_Horvath@lnotes5.bankofny.com>
+
+2000-04-24 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/ja.po: New translation file from the Japanese language team.
+
+2000-04-18 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): If ar_member_date() returns -1 (the member
+ doesn't exist), then return (FILE_TIMESTAMP)-1 rather than
+ returning the timestamp calculated from the value -1. Fixes PR/1696.
+ Reported by Gilles Bourhis <Gilles.Bourhis@univ-rennes1.fr>.
+
+2000-04-17 Paul D. Smith <psmith@gnu.org>
+
+ * config.h.W32.template: Add LOCALEDIR macro resolving to "".
+ * w32/subproc/sub_proc.c (process_begin): Remove reference to
+ debug_flag; change it to a DB() call. Fixes PR/1700.
+ Reported by Jim Smith <jwksmith@attglobal.net>
+
+2000-04-17 Bruno Haible <haible@clisp.cons.org>
+
+ * arscan.c [BeOS]: Add replacement for nonexistent <ar.h> from GNU
+ binutils.
+
+2000-04-11 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (expand_builtin_function): If no arguments were
+ provided, just quit early rather than changing each function to
+ test for this.
+ (function_table[]): Change the min # of arguments to 0 for all
+ those functions for which it makes sense (currently everything
+ that used to take a minimum of 1 argument, except $(call ...)).
+ Fixes PR/1689.
+
+2000-04-09 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * README.DOS: Add instructions to install a binary distro.
+ Mention latest versions of Windows.
+
+2000-04-07 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * main.c (main): Rename TMP_TEMPLATE into DEFAULT_TMPDIR, and use
+ it for the directory of the temporary file. If P_tmpdir is
+ defined, use it in preference to "/tmp/". Try $TMPDIR, $TEMP, and
+ $TMP in the environment before defaulting to DEFAULT_TMPDIR.
+ (print_version): Add year 2000 to the Copyright line.
+
+2000-04-04 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.79 released.
+
+ * make.texinfo: Update documentation with new features for 3.79.
+
+ * function.c (func_wordlist): Don't re-order arguments to
+ wordlist.
+
+2000-04-03 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): Archive member timestamps are stored as
+ time_t, without nanoseconds. But, f_mtime() wants to return
+ nanosecond info on those systems that support it. So, convert the
+ return value of ar_member_date() into a FILE_TIMESTAMP, using 0 as
+ the nanoseconds.
+
+2000-03-28 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.78.92 released.
+
+ * build.template: Updates for gettext support; some bugs fixed.
+
+2000-03-27 Paul D. Smith <psmith@gnu.org>
+
+ * config.guess, config.sub: Updated from config CVS archive at
+ :pserver:anoncvs@subversions.gnu.org:/home/cvs as of today.
+
+ * read.c (record_files): Check if expanding a static pattern
+ rule's prerequisite pattern leaves an empty string as the
+ prerequisite, and issue an error if so. Fixes PR/1670.
+ (read_makefile): Store the starting linenumber for a rule in
+ TGTS_STARTED.
+ (record_waiting_files): Use the TGTS_STARTED value for the file
+ location passed to record_file() instead of the current
+ linenumber, so error messages list the line where the target was
+ defined instead of the line after the end of the rule definition.
+
+ * remake.c (start_updating, finish_updating, is_updating): Fix
+ PR/1671; circular dependencies in double-colon rules are not
+ diagnosed. These macros set the updating flag in the root
+ double-colon file instead of the current one, if it's part of a
+ double-colon list. This solution provided by Tim Magill
+ <magill@gate.net>; I just changed the macro names :).
+ (update_file_1): Call them.
+ (check_dep): Call them.
+
+ The change to not automatically evaluate the $(call ...)
+ function's arguments breaks recursive use of call. Although using
+ $(if ...) and $(foreach ...) in $(call ...) macros is important,
+ the error conditions generated are simply to obscure for me to
+ feel comfortable with. If a method is devised to get both
+ working, we'll revisit. For now, remove this change.
+
+ * function.c (function_table): Turn on the expand bit for func_call.
+ (func_call): Don't expand arguments for builtin functions; that
+ will have already been done.
+
+2000-03-26 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (remove_intermediates): Never remove targets explicitly
+ requested on the command-line by checking the cmd_target flag.
+ Fixed PR/1669.
+
+2000-03-23 Paul Eggert <eggert@twinsun.com>
+
+ * filedef.h (FILE_TIMESTAMP_STAT_MODTIME): Use st_mtime instead of
+ st_mtim.tv_sec; the latter doesn't work on Unixware.
+
+2000-03-18 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (file_hash_enter): If we're trying to change a file into
+ itself, just return. We used to assert this wasn't true, but
+ someone came up with a weird case involving archives. After
+ playing with it for a while I decided it was OK to ignore it.
+
+ * default.c: Define COFLAGS to empty to avoid spurious warnings.
+
+ * filedef.h: Change #if ST_MTIM_NSEC to #ifdef; this is a macro
+ containing the name of the nsec field, not true/false.
+ * make.h: Ditto.
+ Reported by Marco Franzen <Marco.Franzen@Thyron.com>.
+
+2000-03-08 Tim Magill <magill@gate.net>
+
+ * remake.c (update_file): Return the exit status of the pruned
+ file when pruning, not just 0. Fixes PR/1634.
+
+2000-02-24 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Close a minor potential security hole; if you're
+ reading makefiles from stdin (who does that?) you could run into a
+ race condition with the temp file using mktemp() or tmpnam(). Add
+ a check for mkstemp() and fdopen().
+ * main.c (open_tmpfile): New function to open a temporary file.
+ If we have mkstemp() (and fdopen()), use that. If not use
+ mktemp() or tmpnam(). If we have fdopen(), use open() to open the
+ file O_CREAT|O_EXCL. If not, fall back to normal fopen() (insecure).
+ (main): Call it.
+ * job.c (child_execute_job) [VMS]: Call it.
+
+ * variable.c (lookup_variable): If we find a variable which is
+ being expanded, then note it but keep looking through the rest of
+ the set list to see if we can find one that isn't. If we do,
+ return that. If we don't, return the original. Fix for PR/1610.
+
+ While implementing this I realized that it also solves PR/1380 in
+ a much more elegant way. I don't know what I was smoking before.
+ So, remove the hackage surrounding the original fix for that (see
+ below). Change this function back to lookup_variable and remove
+ the extra setlist argument.
+ * variable.h (recursively_expand_setlist): Remove the macro,
+ rename the prototype, and remove the extra setlist argument.
+ (lookup_variable): Ditto.
+ * expand.c (recursively_expand): Rename and remove the extra
+ setlist argument.
+ (reference_variable): Use lookup_variable() again.
+ (allocated_variable_append): Remove the extra setlist argument.
+
+2000-02-21 Paul D. Smith <psmith@gnu.org>
+
+ * README.template: A few updates.
+
+ * i18n/de.po: New version from the German translation team.
+
+2000-02-09 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.78.91 released.
+
+2000-02-07 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Reset *p2 to ':', not *colonp. If any
+ filenames contained backslashes the resulting output (without
+ backslashes) will be shorter, so setting *colonp doesn't change
+ the right character. Fix for PR/1586.
+
+ For += target-specific variables we need to remember which
+ variable set we found the variable in, so we can start looking
+ from there in the next iteration (otherwise we might see it again
+ in recursively_expand and fail!). This is turning into a hack; if
+ it gets any worse we'll have to rethink this entire algorithm...
+ implementing expansion of these references separately from the
+ "normal" expansion, say, instead of using the same codepath.
+ Actually, it's already "worse enough" :-/.
+ Fix for PR/1380.
+
+ * variable.h (recursively_expand_setlist): Rename
+ recursively_expand to add a struct variable_set_list argument, and
+ make a macro for recursively_expand.
+ (lookup_variable_setlist): Rename lookup_variable to add a struct
+ variable_set_list argument, and make a macro for lookup_variable.
+
+ * expand.c (recursively_expand_setlist): Take an extra struct
+ variable_set_list argument and pass it to allocated_variable_append().
+ (reference_variable): Use lookup_variable_setlist() and pass the
+ returned variable_set_list to recursively_expand_setlist.
+ (allocated_variable_append): Take an extra setlist argument and
+ use this as the starting place when searching for the appended
+ expansion. If it's null, use current_variable_set_list as before.
+
+ * variable.c (lookup_variable_setlist): If the LISTP argument is
+ not nil, set it to the list containing the variable we found.
+
+2000-02-04 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (print_variable): Write out filename/linenumber
+ information for the variable definition if present.
+ (define_variable_in_set): Store filename information if provided.
+ (define_variable, define_variable_for_file): Removed.
+ (try_variable_definition): Use define_variable_loc() to keep
+ variable definition location information.
+ * read.c (read_makefile): Keep variable definition location info.
+ (do_define): Ditto.
+ (record_target_var): Ditto.
+ * variable.h (define_variable_in_set): New fileinfo argument.
+ (define_variable, define_variable_loc, define_variable_for_file):
+ Declare new macros.
+
+ Fix PR/1407:
+
+ * filedef.h (struct file): Rename patvar to pat_variables and make
+ it just a variable_set_list; we need our own copy of the pattern
+ variable's variable set list here to avoid overwriting the global
+ one.
+ * variable.c (initialize_file_variables): Move the instantiation
+ of the pat_variables pointer here. Only do the search after we're
+ done reading the makefiles so we don't search too early. If
+ there's a pat_variables value, set up the variables next ptr.
+ * expand.c (variable_expand_for_file): Remove the setup of the
+ pat_variables info; it's done earlier now to ensure the parent's
+ pattern variables are set up correctly as well.
+
+2000-02-03 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (sh_chars_dos) [WINDOWS32]: Add "&" as a shell
+ metacharacter for the W32 DOS shell.
+ Reported by Warren Jones <wjones@tc.fluke.com>.
+
+2000-02-02 Paul D. Smith <psmith@gnu.org>
+
+ Fixes for the OpenVMS port from Hartmut Becker <becker@rto.dec.com>
+
+ * config.h-vms [VMS]: Define LOCALEDIR to something; needed for
+ the expansion of bindtextdomain() even though it's a no-op.
+ * vmsfunctions.c (strcmpi): Remove duplicate definition of strcmpi().
+ (readdir): Use DB() instead of testing debug_flag.
+ * dir.c (file_impossible) [VMS]: Search "p" not "name".
+ * job.c [VMS]: Switch from debug_flag to the new DB macro. Add
+ some i18n _() macros (even though VMS doesn't yet support it).
+
+ * function.c (patsubst_expand): Change "len" to not be unsigned to
+ avoid type mismatches.
+
+ * main.c (main): Declare signame_init() if we're going to call it.
+
+2000-01-29 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS.template: Track changes in Makefile.in
+ (install-recursive, uninstall-recursive): Add missing targets.
+ (DESTDIR): Define.
+ (install-binPROGRAMS, uninstall-binPROGRAMS): Use $(DESTDIR).
+
+ * default.c (default_variables) [__MSDOS__]: Define CXX to gpp.
+
+2000-01-27 Paul D. Smith <psmith@gnu.org>
+
+ * gettext.c: Some warning cleanups, and a fix for systems which
+ don't define HAVE_ALLOCA (the workaround code was included
+ twice).
+
+2000-01-26 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.78.90 released.
+
+2000-01-25 Paul D. Smith <psmith@gnu.org>
+
+ Change gettext support to use the simplified version in libit 0.7.
+
+ * getopt.c, make.h: Use gettext.h instead of libintl.h.
+ * ABOUT-NLS, gettext.h, gettext.c: New files from libit 0.7.
+ Modified to remove some static declarations which aren't defined.
+ * acconfig.h: Use new gettext #defines.
+ * acinclude.m4: Add fp_WITH_GETTEXT; remove AM_GNU_GETTEXT.
+ * configure.in: Call fp_WITH_GETTEXT instead.
+ * Makefile.am: New gettext stuff. Also force inclusion of glob
+ files for systems which have LIBC glob.
+
+ * i18n/Makefile.am, i18n/.cvsignore: New dir for translation files.
+ * i18n/de.po, i18n/es.po, i18n/fr.po, i18n/ko.po, i18n/nl.po:
+ * i18n/pl.po, i18n/ru.po: Import translations already done for
+ earlier versions of GNU make. Thanks for that work!!
+
+ * po/Makefile.in.in, po/POTFILES.in: Removed.
+
+2000-01-23 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (decode_debug_flags): If debug_flag is set, enable all
+ debugging levels.
+ (debug_flag): Resurrect this flag variable.
+ (switches): Make -d give the old behavior of turning on all
+ debugging. Change --debug alone to emit basic debugging and take
+ optional arguments to expand debugging.
+ * NEWS: Document the new debugging options.
+
+ * remake.c (no_rule_error): Remove this function. This tries to
+ fix a real problem--see the description with the introduction of
+ this function below. However, the cure is worse than the disease
+ and this approach won't work.
+ (remake_file): Put the code from no_rule_error back here.
+ (update_file_1): Remove call to no_rule_error.
+
+ * filedef.h (struct file): Remove mfile_status field.
+
+2000-01-22 Paul D. Smith <psmith@gnu.org>
+
+ Integrate GNU gettext support.
+
+ * configure.in: Add AM_GNU_GETTEXT.
+ * Makefile.am: Add options for setting LOCALEDIR, -Iintl, etc.
+ * acinclude.m4: Add gettext autoconf macros.
+ * acconfig.h: Add new gettext #defines.
+ * make.h: Include libintl.h. Make sure _() and N_() macros are
+ declared. Make gettext() an empty macro is NLS is disabled.
+ * main.c (struct command_switch switches[]): Can't initialize
+ static data with _() (gettext calls), so use N_() there then use
+ gettext() directly when printing the strings.
+ * remake.c (no_rule_error): The string constants can't be static
+ when initializing _() macros.
+ * file.c (print_file): Reformat a few strings to work better for
+ translation.
+ * po/POTFILES.in, po/Makefile.in.in: New files. Take
+ Makefile.in.in from the latest GNU tar distribution, as that
+ version works better than the one that comes with gettext.
+ * NEWS: Mention i18n ability.
+
+2000-01-21 Paul D. Smith <psmith@gnu.org>
+
+ Installed patches for the VMS port.
+ Patches provided by: Hartmut Becker <Hartmut.Becker@compaq.com>
+
+ * readme.vms, arscan.c, config.h-vms, default.c, dir.c, file.c:
+ * implicit.c, job.c, make.h, makefile.com, makefile.vms, rule.c:
+ * variable.c, vmsdir.h, vmsfunctions.c, vmsify.c, glob/glob.c:
+ * glob/glob.h: Installed patches. See readme.vms for details.
+
+2000-01-14 Andreas Schwab <schwab@suse.de>
+
+ * dir.c (read_dirstream): Initialize d_type if it exists.
+
+2000-01-11 Paul D. Smith <psmith@gnu.org>
+
+ Resolve PR/xxxx: don't automatically evaluate the $(call ...)
+ function's arguments. While we're here, clean up argument passing
+ protocol to always use simple nul-terminated strings, instead of
+ sometimes using offset pointers to mark the end of arguments.
+ This change also fixes PR/1517.
+ Reported by Damien GIBOU <damien.gibou@st.com>.
+
+ * function.c (struct function_table_entry): Remove the negative
+ required_args hack; put in explicit min and max # of arguments.
+ (function_table): Add in the max value. Turn off the expand bit
+ for func_call.
+ (expand_builtin_function): Test against minimum_args instead of
+ the obsolete required_args.
+ (handle_function): Rewrite this. We don't try to be fancy and
+ pass one style of arguments to expanded functions and another
+ style to non-expanded functions: pass pointers to nul-terminated
+ strings to all functions.
+ (func_call): Rewrite this. If we are invoking a builtin function
+ and it's supposed to have its arguments expanded, do that (since
+ it's not done by handle_function for $(call ...) anymore). For
+ non-builtins, just add the variables as before but mark them as
+ recursive so they'll be expanded later, as needed.
+ (func_if): All arguments are vanilla nul-terminated strings:
+ remove trickery with "argv[1]-1".
+ (func_foreach): Ditto.
+
+ * expand.c (expand_argument): If the second arg is NULL, expand
+ the entire first argument.
+
+ * job.c (new_job): Zero the child struct. This change was just
+ made to keep some heap checking software happy, not because there
+ was an actual bug (the important memory was being cleared properly).
+
+1999-12-15 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (print_variable): Print the variable with += if the
+ append flag is set.
+
+ * implicit.c (pattern_search): Remove the extra check of the
+ implicit flag added on 8/24/1998. This causes problems and the
+ reason for the change was better resolved by the change made to
+ check_deps() on 1998-08-26. This fixes PR/1423.
+
+1999-12-08 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (dir_setup_glob): On 64 bit ReliantUNIX (5.44 and above)
+ in LFS mode, stat() is actually a macro for stat64(). Assignment
+ doesn't work in that case. So, stat is a macro, make a local
+ wrapper function to invoke it.
+ (local_stat): Wrapper function, if needed.
+ Reported by Andrej Borsenkow <Andrej.Borsenkow@mow.siemens.ru>.
+
+1999-12-02 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_file): Move the considered test outside the
+ double-colon loop, _but_ make sure we test the double_colon target
+ not the "current" target. If we stop early because one
+ double-colon target is running, mark all the rest considered and
+ try to start their prerequisites (so they're marked considered).
+ Fix for PR/1476 suggested by Tim Magill <tim.magill@telops.gte.com>.
+
+1999-11-22 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * function.c (windows32_openpipe, func_shell): Correct Windows32
+ problem where $(shell nosuchfile) would incorrectly exit make. The
+ fix is to print the error and let make continue.
+ Reported by David Masterson <David.Masterson@kla-tencor.com>.
+
+ * w32/subproc/misc.c (arr2envblk): Memory leak fix.
+
+1999-11-21 Paul D. Smith <psmith@gnu.org>
+
+ Rework GNU make debugging to provide different levels of output.
+
+ * NEWS: mention it.
+ * debug.h: New file. Define various debugging levels and macros.
+ * function.c, implicit.c, job.c, main.c, misc.c, read.c, remake.c
+ * remote-cstms.c, vmsfunctions.c: Replace all code depending on
+ debug_flag with invocations of debugging macros.
+ * make.h: Remove debug_flag and DEBUGPR, add db_level.
+
+1999-11-18 Paul Eggert <eggert@twinsun.com>
+
+ * acinclude.m4 (AC_SYS_LARGEFILE_FLAGS): Work around a problem
+ with the QNX 4.25 shell, which doesn't propagate exit status of
+ failed commands inside shell assignments.
+
+1999-11-17 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_if): Find the end of the arg list by testing
+ the next item for NULL; any other test is not correct.
+ Reported by Graham Reed <grahamr@algorithmics.com> (PR/1429).
+
+ Fix += when used in a target-specific variable context.
+
+ * variable.h: New bitfield APPEND set if we have a +=
+ target-specific variable.
+
+ * variable.c (try_variable_definition): Add an argument to specify
+ if we're trying a target-specific variable. If we are and it's an
+ append style, don't append it, record it as normal recursive, but
+ set the APPEND flag so it'll be expanded later.
+ * main.c (handle_non_switch_argument): Use new
+ try_variable_definition() signature.
+ * read.c (read_makefile,record_target_var): Ditto.
+
+ * expand.c (allocated_variable_append): New function: like
+ allocated_variable_expand(), but we expand the same variable name
+ in the context of the ``next'' variable set, then we append this
+ expanded value.
+ (recursively_expand): Invoke it, if the APPEND bit is set.
+
+1999-11-10 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (snap_deps): If the .NOTPARALLEL target is defined, turn
+ off parallel builds for this make only (still allow submakes to be
+ run in parallel).
+ * main.c: New variable, ``not_parallel''.
+ * make.h: Add an extern for it.
+ * job.c (new_job): Test NOT_PARALLEL as well as JOB_SLOTS.
+ * NEWS: Add info on .NOTPARALLEL.
+ * make.texinfo (Special Targets): Document it.
+
+ * configure.in (GLOBDIR): Set to "glob" if we need to build the
+ glob library.
+ * Makefile.am (SUBDIRS): Use the GLOBDIR variable instead of
+ "glob" so we don't try to build glob if we don't need to (if we
+ have GLIBC glob). Reported by Lars Hecking <lhecking@nmrc.ucc.ie>.
+
+ * main.c (main): Don't put "***" in the clock skew warning
+ message. Reported by karl@gnu.org.
+
+ * make.h: Remove unneeded signal setup.
+
+ * signame.c: Remove extraneous #includes; some versions of Ultrix
+ don't protect against multiple inclusions and it causes compile
+ errors. Reported by Simon Burge <simonb@thistledown.com.au>.
+
+1999-10-15 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (quote_for_env): Rename from quote_as_word().
+
+ * make.h, *.c: Prefer strchr() and strrchr() in the code
+ rather than index() and rindex(). Define strchr/strrchr in terms
+ of index/rindex if the former aren't supported.
+
+ * default.c (CHECKOUT,v): Replace the fancy, complicated
+ patsubst/filter expression with a simple $(if ...) expression.
+
+ * main.c (print_usage): Add the bug reporting mailing address to
+ the --help output, as per the GNU coding standards.
+ Reported by Paul Eggert <eggert@twinsun.com>.
+
+ * README.customs: Installed information on running Customs-ized
+ GNU make and setuid root, collected by Ted Stern <stern@tera.com>.
+
+ * read.c (read_all_makefiles): PR/1394: Mark the end of the next
+ token in the MAKEFILES value string _before_ we dup it.
+
+1999-10-13 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in (make_cv_sys_gnu_glob): We used to add the -Iglob
+ flag to CPPFLAGS, but that loses if the user specifies his own
+ CPPFLAGS; this one gets added _after_ his and if he happens to
+ have an old or broken glob.h--boom. Instead, put it in GLOBINC
+ and SUBST it.
+
+ * Makefile.am (INCLUDES): Add @GLOBINC@ to the INCLUDES macro;
+ these things get on the compile line well before the user's
+ CPPFLAGS.
+
+1999-10-12 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (notice_finished_file): If we get here and -n is set,
+ see if all the command lines are marked recursive. If so, then we
+ ran every command there is, so check the mtime on this file just
+ like we would normally. If not, we assume the command we didn't
+ run would updates the target and set mtime of the target to "very new".
+
+ * job.c (start_job_command): Update lines_flags in the file's cmds
+ structure with any per-line tokens we found (`@', `-', `+').
+
+1999-10-08 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (initialize_file_variables): Always recurse to
+ initialize the parent's file variables: the parent might not have
+ any rules to run so it might not have been initialized before
+ this--we need this to set up the chain properly for
+ target-specific variables.
+
+1999-09-29 Paul Eggert <eggert@twinsun.com>
+
+ * main.c (quote_as_word): Always quote for decode_env_switches
+ instead of for the shell, so that arguments with strange
+ characters are are passed to submakes correctly. Remove
+ double_dollars arg; we always double dollars now. All callers
+ changed.
+ (decode_env_switches): Don't run off the end of an environment
+ variable whose contents ends in a unescaped backslash.
+
+1999-09-23 Paul D. Smith <psmith@gnu.org>
+
+ * commands.c, function.c, job.c, read.c: Cast arguments to
+ ctype.h functions/macros to _unsigned_ char for portability.
+
+ * remake.c, function.c: Compiler warning fixes: the second
+ argument to find_next_token() should be an _unsigned_ int*.
+ Reported by Han-Wen Nienhuys <hanwen@cs.uu.nl>.
+
+1999-09-23 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.78.1 released.
+
+ * make.texinfo: Update version/date stamp.
+
+ * main.c (main): Argh. For some reason we were closing _all_ the
+ jobserver pipes before we re-exec'd due to changed makefiles.
+ This means that any re-exec got a "jobserver unavailable" error :-/.
+ I can't believe we didn't notice this before.
+
+1999-09-22 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.78 released.
+
+ * main.c (main): Only fail on multiple --jobserver-fds options if
+ they aren't all the same. Some makefiles use things like
+ $(MAKE) $(MFLAGS) which will cause multiple, identical copies of
+ --jobserver-fds to show up.
+
+1999-09-16 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (define_makeflags): Zero out FLAGSTRING to avoid
+ uninitialized memory reads when checking *p != '-' in the loop.
+
+1999-09-15 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.97 released.
+
+ * configure.in (MAKE_HOST): AC_SUBST this so it will go into the
+ makefile.
+ * Makefile.am (check-local): Print a success banner if the check
+ succeeds.
+ (check-regression): A bit of fine-tuning.
+
+1999-09-15 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * README.DOS.template: Document requirements for the test suite.
+ * Makefile.DOS.template: Updates to allow the test suite to run
+ from "make check".
+
+ * main.c (main): Handle it if argv[0] isn't an absolute path.
+
+1999-09-13 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.96 released.
+
+ * Makefile.am (loadavg): Use CPPFLAGS, etc. to make sure we get
+ all the right #defines to compile.
+ (check-regression): Look for the regression test suite in the make
+ package itself. If we're building remotely, use symlinks to make
+ a local copy.
+ (dist-hook): Put the test suite into the tar file.
+
+ * configure.in: Look for perl for the test suite.
+
+1999-09-10 Paul Eggert <eggert@twinsun.com>
+
+ * acinclude.m4 (AC_SYS_LARGEFILE_FLAGS): If on HP-UX 10.20 or
+ later, and using GCC, define __STDC_EXT__; this works around a
+ bug in GCC 2.95.1.
+
+1999-09-08 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (print_version): Ugh. GLIBC's configure tries to check
+ make version strings and is too aggressive with their matching
+ expressions. I've struck a deal with them to leave the version
+ output as-is for 3.78, and they'll change their configure checks
+ so that I can change this back in the future.
+
+1999-09-07 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * job.c (construct_command_argv_internal) [__MSDOS__]: Add "echo"
+ and "unset" to the list of builtin shell commands.
+
+ * configh.DOS.template (MAKE_HOST): Define to "i386-pc-msdosdjgpp"
+ which is the canonical name of the DJGPP host.
+
+1999-09-05 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.95 released.
+
+ * make.texinfo (Make Errors): Document some new jobserver error
+ messages.
+
+1999-09-04 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * make.texinfo (Make Errors): Document the hint about 8 spaces
+ instead of a TAB.
+ (Call Function, Quick Reference): Use @code{$(1)}, not @var.
+
+ * main.c (main) [__MSDOS__]: Say "on this platform" instead of "on
+ MS-DOS", since the MSDOS version could run on Windows.
+
+1999-09-03 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (notice_finished_file): Always set mtime_before_update
+ if it's not been set, not just if we ran some rules. Otherwise we
+ may have a situation where a target's prerequisite was rebuilt but
+ not changed, so this target's rules weren't run, then
+ update_goal_chain() sees mtime_before_update != last_mtime and
+ thinks that the top-level target changed when it really didn't.
+ This can cause an infinite loop when remaking makefiles.
+ (update_goal_chain): If we get back to the top and we don't know
+ what the goal's last_mtime was, find it now. We need to know so
+ we can compare it to mtime_before_update later (this is only
+ crucial when remaking makefiles--should we only do it then?)
+
+1999-09-02 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): If "override" appears as the first
+ prerequisite, look further to ensure this is really a
+ target-specific variable definition, and not just some
+ prerequisite named "override".
+
+1999-09-01 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (IS_PATHSEP) [WINDOWS32]: Allow backslash separators
+ for W32 platforms.
+ * read.c (record_files) [WINDOWS32]: Allow backslash separators
+ for W32 platforms.
+ * implicit.c (pattern_search) [WINDOWS32]: Allow backslash
+ separators for W32 platforms.
+
+ * configure.in (MAKE_HOST): Define it to be the canonical build
+ host info, now that we need AC_CANONICAL_HOST anyway (for large
+ file support).
+ * version.c (make_host): Define a variable to MAKE_HOST so we're
+ sure to get it from the local config.h.
+ * main.c (print_version): Use it in the version information.
+ * config.ami.template: Add MAKE_HOST.
+ * configh.dos.template: Ditto.
+ * config.h.W32.template: Ditto.
+ * config.h-vms.template: Ditto.
+
+ * main.c (main): Close the jobserver file descriptors if we need
+ to re-exec ourselves.
+ Also print more reasonable error if users force -jN for submakes.
+ This may be common for a while until people use the jobserver
+ feature. If it happens, we ignore the existing jobserver stuff
+ and use whatever they specified on the commandline.
+ (define_makeflags): Fixed a long-standing bug: if a long name
+ only option comes immediately after a single letter option with no
+ argument, then the option string is constructed incorrectly. For
+ example, with -w and --jobserver-fds you get "-w-jobserver-fds..."
+ instead of "-w --jobserver-fds..."; add in an extra " -".
+
+ * make.texinfo (Phony Targets): Add another example of using
+ .PHONY with subdirectories/recursive make.
+
+1999-08-30 Paul D. Smith <psmith@gnu.org>
+
+ * README.W32.template: Renamed from README.W32 so it's
+ autogenerated during the dist. A few minor modifications.
+
+ * configure.in: Check for kstat_open before AC_FUNC_GETLOADAVG
+ since the latter needs to know whether the former exists to give
+ an accurate result.
+
+1999-08-26 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * NMakefile [WINDOWS32]: Now more robust. If you change a file
+ under w32/subproc, the make.exe will be relinked. Also added some
+ tests to make sure erase commands won't fail when executed in a
+ pristine build environment.
+
+ * w32/subproc/sub_proc.c [WINDOWS32]: Added support for
+ HAVE_CYGWIN_SHELL. If you are using the Cygwin B20.1 release, it
+ is now possible to have have native support for this shell without
+ having to rely on klutzy BATCH_MODE_ONLY_SHELL.
+
+ * config.h.W32 [WINDOWS32]: Added HAVE_CYGWIN_SHELL macro which
+ users can define if they want to build make to use this shell.
+
+ * README.W32 [WINDOWS32]: Added informaton about
+ HAVE_CYGWIN_SHELL. Cleaned up text a bit to make it more current.
+
+1999-08-26 Paul Eggert <eggert@twinsun.com>
+
+ Support large files in AIX, HP-UX, and IRIX.
+
+ * acinclude.m4 (AC_LFS): Remove. Superseded by AC_SYS_LARGEFILE.
+ (AC_SYS_LARGEFILE_FLAGS, AC_SYS_LARGEFILE_SPACE_APPEND,
+ AC_SYS_LARGEFILE_MACRO_VALUE, AC_SYS_LARGEFILE): New macros.
+ (jm_AC_TYPE_UINTMAX_T): Check for busted compilers that can't
+ shift or divide unsigned long long.
+ (AM_PROG_CC_STDC): New macro; a temporary workaround of a bug in
+ automake 1.4.
+
+ * configure.in (AC_CANONICAL_HOST): Add; required by new
+ AC_SYS_LARGEFILE.
+ (AC_SYS_LARGEFILE): Renamed from AC_LFS.
+ (AM_PROG_CC_STDC): Add.
+
+ * config.guess, config.sub: New files, needed for AC_CANONICAL_HOST.
+
+1999-08-25 Paul Eggert <eggert@twinsun.com>
+
+ * make.h (CHAR_MAX): New macro.
+ * main.c (struct command_switch): c is now int,
+ so that it can store values greater than CHAR_MAX.
+ (switches): Replace small numbers N with CHAR_MAX+N-1,
+ to avoid problems with non-ASCII character sets.
+ (short_option): New macro.
+ (init_switches, print_usage, define_makeflags): Use it instead of
+ isalnum.
+
+1999-08-25 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.94 released.
+
+ * main.c (main) [__MSDOS__]: If the user uses -j, warn that it's
+ not supported and reset it.
+
+ * make.h (ISDIGIT): Obtained this from the textutils distribution.
+ * main.c (decode_switches): Use it.
+ * function.c (is_numeric): Use it.
+
+ * main.c (struct command_switch): Store the switch char in an
+ unsigned char to shut up GCC about using it with ctype.h macros.
+ Besides, it _is_ always unsigned.
+
+1999-08-24 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Change "dependency" to "prerequisite" and
+ "dependencies" to "prerequisites". Various other cleanups related
+ to the terminology change.
+ * file.c: Change debugging and error messages to use
+ "prerequisite" instead of "dependency".
+ * implicit.c: Ditto.
+ * remake.c: Ditto.
+ * NEWS: Document it.
+
+1999-08-23 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_file): Move the considered check into the
+ double-colon rule loop, so we consider double-colon rules
+ individually (otherwise after the first is pruned, the rest won't
+ get run).
+
+ * README.template: Minor changes.
+
+ Remove the debugging features of the jobserver, so it no longer
+ writes distinct tokens to the pipe. Thus, we don't need to store
+ the token we get. A side effect of this is to remove a potential
+ "unavailable token" situation: make-1 invokes make-2 with its
+ special token and make-3 with a normal token; make-2 completes.
+ Now we're waiting for make-3 but using 2 tokens; our special token
+ is idle. In the new version we don't have special tokens per se,
+ we merely decide if we already have a child or not. If we don't,
+ we don't need a token. If we do, we have to get one to run the
+ next child. Similar for putting tokens back: if we're cleaning up
+ the last child, we don't put a token back. Otherwise, we do.
+
+ * main.c: Add a new, internal flag --jobserver-fds instead of
+ overloading the meaning of -j. Remove job_slots_str and add the
+ stringlist jobserver_fds.
+ (struct command_switch): We don't need the int_string type.
+ (switches[]): Add a new option for --jobserver-fds and remove
+ conditions around -j. Make the description for the former 0 so it
+ doesn't print during "make --help".
+ (main): Rework jobserver parsing. If we got --jobserver-fds
+ make sure it's valid. We only get one and job_slots must be 0.
+ If we're the toplevel make (-jN without --jobserver-fds) create
+ the pipe and write generic tokens.
+ Create the stringlist struct for the submakes.
+ Clean up the stringlist where necessary.
+ (init_switches): Remove int_string handling.
+ (print_usage): Don't print internal flags (description ptr is 0).
+ (decode_switches): Remove int_string handling.
+ (define_makeflags): Remove int_string handling.
+
+ * job.c: Remove my_job_token flag and all references to the
+ child->job_token field.
+ (free_job_token): Remove this and merge it into free_child().
+ (reap_children): Rework the "reaped a child" logic slightly.
+ Don't call defunct free_job_token anymore. Always call
+ free_child, even if we're dying.
+ (free_child): If we're not freeing the only child, put a token
+ back in the pipe. Then, if we're dying, don't bother to free.
+ (new_job): If we are using the jobserver, loop checking to see if
+ a) there are no children or b) we get a token from the pipe.
+
+ * job.h (struct child): Remove the job_token field.
+
+1999-08-20 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (try_variable_definition): Allocate for variable
+ expansion in f_append with a simple variable: if we're looking at
+ target-specific variables we don't want to trash the buffer.
+ Noticed by Reiner Beninga <Reiner.Beninga@mchp.siemens.de>.
+
+1999-08-16 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * main.c (main) [__MSDOS__]: Mirror any backslashes in argv[0], to
+ avoid problems in shell commands that use backslashes as escape
+ characters.
+
+1999-08-16 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.93 released.
+
+1999-08-13 Paul D. Smith <psmith@gnu.org
+
+ * function.c (func_if): New function $(if ...) based on the
+ original by Han-Wen but reworked quite a bit.
+ (function_table): Add it.
+ * NEWS: Introduce it.
+ * make.texinfo (If Function): Document it.
+
+ * job.c (free_job_token): Check for EINTR when writing tokens to
+ the jobserver pipe.
+
+1999-08-12 Paul D. Smith <psmith@gnu.org>
+
+ Another jobserver algorithm change. We conveniently forgot that
+ the blocking bit is shared by all users of the pipe, it's not a
+ per-process setting. Since we have many make processes all
+ sharing the pipe we can't use the blocking bit as a signal handler
+ flag. Instead, we'll dup the pipe's read FD and have the SIGCHLD
+ handler close the dup'd FD. This will cause the read() to fail
+ with EBADF the next time we invoke it, so we know we need to reap
+ children. We then re-dup and reap.
+
+ * main.c (main): Define the job_rfd variable to hold the dup'd FD.
+ Actually dup the read side of the pipe. Don't bother setting the
+ blocking bit on the file descriptor.
+ * make.h: Declare the job_rfd variable.
+ * job.c (child_handler): If the dup'd jobserver pipe is open,
+ close it and assign -1 to job_rfd to notify the main program that
+ we got a SIGCHLD.
+ (start_job_command): Close the dup'd FD before exec'ing children.
+ Since we open and close this thing so often it doesn't seem
+ worth it to use the close-on-exec bit.
+ (new_job): Remove code for testing/setting the blocking bit.
+ Instead of EAGAIN, test for EBADF. If the dup'd FD has been
+ closed, re-dup it before we reap children.
+
+ * function.c (func_shell): Be a little more accurate about the
+ length of the error string to allocate.
+
+ * expand.c (variable_expand_for_file): If there's no filenm info
+ (say, from a builtin command) then reset reading_file to 0.
+
+1999-08-09 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile: Use g in sed (s///g) to replace >1 variable per
+ line.
+
+ * Makefile.DOS.template [__MSDOS__]: Fix mostlyclean-aminfo to
+ remove the right files.
+
+1999-08-01 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * function.c (msdos_openpipe) [__MSDOS__]: *Really* return a FILE
+ ptr.
+
+1999-08-01 Paul D. Smith <psmith@gnu.org>
+
+ New jobserver algorithm to avoid a possible hole where we could
+ miss SIGCHLDs and get into a deadlock. The original algorithm was
+ suggested by Roland McGrath with a nice refinement by Paul Eggert.
+ Many thanks as well to Tim Magill and Howard Chu, who also
+ provided many viable ideas and critiques. We all had a fun week
+ dreaming up interesting ways to use and abuse UNIX syscalls :).
+
+ Previously we could miss a SIGCHLD if it happened after we reaped
+ the children but before we re-entered the blocking read. If this
+ happened to all makes and/or all children, make would never wake
+ up.
+
+ We avoid this by having the SIGCHLD handler reset the blocking bit
+ on the jobserver pipe read FD (normally read does block in this
+ algorithm). Now if the handler is called between the time we reap
+ and the time we read(), and there are no tokens available, the
+ read will merely return with EAGAIN instead of blocking.
+
+ * main.c (main): Set the blocking bit explicitly here.
+ * job.c (child_handler): If we have a jobserver pipe, set the
+ non-blocking bit for it.
+ (start_waiting_job): Move the token stuff back to new_job; if we
+ do it here then we're not controlling the number of remote jobs
+ started!
+ (new_job): Move the check for job slots to _after_ we've created a
+ child structure. If the read returns without getting a token, set
+ the blocking bit then try to reap_children.
+
+ * make.h (EINTR_SET): Define to test errno if EINTR is available,
+ or 0 otherwise. Just some code cleanup.
+ * arscan.c (ar_member_touch): Use it.
+ * function.c (func_shell): Use it.
+ * job.c (reap_children): Use it.
+ * remake.c (touch_file): Use it.
+
+1999-07-28 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Define _() and N_() macros as passthrough to initiate
+ NLS support.
+ * <all>: Add _()/N_() around translatable strings.
+
+1999-07-27 Paul D. Smith <psmith@gnu.org>
+
+ * read.c: Make sure make.h comes before other headers.
+
+1999-07-26 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Quick Reference): Update with the new features.
+
+1999-07-25 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * remake.c [__MSDOS__]: Don't include variables.h, it's already
+ included.
+
+ * function.c (msdos_openpipe) [__MSDOS__]: Return FILE ptr.
+ (func_shell) [__MSDOS__]: Fix the argument list.
+
+ * Makefile.DOS.template: Update from Makefile.in.
+
+ * README.DOS.template: Configure command fixed.
+
+ * configh.dos.template: Update to provide definitions for
+ uintmax_t, fd_set_size_t, and HAVE_SELECT.
+
+1999-07-24 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.91 released.
+
+ * configure.in: Changes to the boostrapping code: if build.sh.in
+ doesn't exist configure spits an error and generates an empty
+ build.sh file which causes make to be confused.
+ * maintMakefile: Don't build README early.
+
+1999-07-23 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (my_job_token): This variable controls whether we've
+ handed our personal token to a subprocess or not. Note we could
+ probably infer this from the value of job_slots_used, but it's
+ clearer to just keep it separately. Job_slots_used isn't really
+ relevant when running the job server.
+ (free_job_token): New function: free a job token. If we don't
+ have one, no-op. If we have the personal token, reclaim it. If
+ we have another token, write it back to the pipe.
+ (reap_children): Call free_job_token.
+ (free_child): Call free_job_token.
+ (start_job_command): Remove duplicate test for '+' in the command.
+ If we don't appear to be running a recursive make, close the
+ jobserver filedescriptors.
+ (start_waiting_job): If our personal token is available, use that
+ instead of going to the server pipe.
+ (*): Add the token value to many debugging statements, and print
+ the child target name in addition to the ptr hex value.
+ Change the default "no token" value from '\0' to '-' so it looks
+ better in the output.
+
+ * main.c (main): Install the child_handler with sigaction()
+ instead of signal() if we have it. On SysV systems, signal() uses
+ SysV semantics which are a pain. But sigaction() always does what
+ we want.
+ (main): If we got job server FDs from the environment, test them
+ to see if they're open. If not, the parent make closed them
+ because it didn't think we were a submake. Print a warning and
+ suggestion to use "+" on the submake invocation, and hard-set to
+ -j1 for this instance of make.
+ (main): Change the algorithm for assigning slots to be more
+ robust. Previously make checked to see if it thought a subprocess
+ was a submake and if so, didn't give it a token. Since make's
+ don't consume tokens we could spawn many of makes fighting for a
+ small number of tokens. Plus this is unreliable because submakes
+ might not be recognized by the parent (see above) then all the
+ tokens could be used up by unrecognized makes, and no one could
+ run. Now every make consumes a token from its parent. However,
+ the make can also use this token to spawn a child. If the make
+ wants more than one, it goes to the jobserver pipe. Thus there
+ will never be more than N makes running for -jN, and N*2 processes
+ (N makes and their N children). Every make can always run at
+ least one job, and we'll never deadlock. (Note the closing of the
+ pipe for non-submakes also solves this, but this is still a better
+ algorithm.) So! Only put N-1 tokens into the pipe, since the
+ topmost make keeps one for itself.
+
+ * configure.in: Find sigaction. Disable job server support unless
+ the system provides it, in addition to either waitpid() or
+ wait3().
+
+1999-07-22 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * arscan.c (ar_member_touch) [WINDOWS32]: The ar_date field is a
+ string on Windows, not a timestamp.
+
+1999-07-21 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77.90 released.
+
+ * Makefile.am (AUTOMAKE_OPTIONS): Require automake 1.4.
+
+ * function.c: Rearrange so we don't need to predeclare the
+ function_table array; K&R C compilers don't like that.
+
+ * acinclude.m4 (AC_FUNC_SELECT): Ouch; this requires an ANSI C
+ compiler! Change to work with K&R compilers as well.
+
+ * configure.in (AC_OUTPUT): Put build.sh back. I don't know how I
+ thought it would work this way :-/. We'll have to think of
+ something else.
+ * Makefile.am: Remove rule to create build.sh.
+
+ * default.c (default_suffix_rules): Rearrange the default command
+ lines to conform to POSIX rules (put the filename argument $<
+ _after_ the OUTPUT_OPTION, not before it).
+
+ * various: Changed !strncmp() calls to strneq() macros.
+
+ * misc.c (sindex): Make slightly more efficient.
+
+ * dir.c (file_impossible): Change savestring(X,strlen(X)) to xstrdup().
+ * implicit.c (pattern_search): Ditto.
+ * main.c (enter_command_line_file): Ditto.
+ (main): Ditto.
+ * misc.c (copy_dep_chain): Ditto.
+ * read.c (read_makefile): Ditto.
+ (parse_file_seq): Ditto.
+ (tilde_expand): Ditto.
+ (multi_glob): Ditto.
+ * rule.c (install_pattern_rule): Ditto.
+ * variable.c (define_variable_in_set): Ditto.
+ (define_automatic_variables): Ditto.
+ * vpath.c (construct_vpath_list): Ditto.
+
+ * misc.c (xrealloc): Some reallocs are non-standard: work around
+ them in xrealloc by calling malloc if PTR is NULL.
+ * main.c (main): Call xrealloc() directly instead of testing for
+ NULL.
+
+ * function.c (func_sort): Don't try to free NULL; some older,
+ non-standard versions of free() don't like it.
+
+ * configure.in (--enable-dmalloc): Install some support for using
+ dmalloc (http://www.dmalloc.com/) with make. Use --enable-dmalloc
+ with configure to enable it.
+
+ * function.c (function_table_entry): Whoops! The function.c
+ rewrite breaks backward compatibility: all text to a function is
+ broken into arguments, and extras are ignored. So $(sort a,b,c)
+ returns "a"! Etc. Ouch. Fix it by making a positive value in
+ the REQUIRED_ARGS field mean exactly that many arguments to the
+ function; any "extras" are considered part of the last argument as
+ before. A negative value means at least that many, but may be
+ more: in this case all text is broken on commas.
+ (handle_function): Stop when we've seen REQUIRED_ARGS args, if >0.
+ (expand_builtin_function): Compare number of args to the absolute
+ value of REQUIRED_ARGS.
+
+1999-07-20 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): Ensure that the state of the target
+ is cs_running. It might not be if we skipped all the lines due to
+ -n (for example).
+
+ * commands.c (execute_file_commands): If we discover that the
+ command script is empty and succeed early, set cs_running so the
+ modtime of the target is still rechecked.
+
+ * rule.c (freerule): Free the dependency list for the rule.
+
+ * implicit.c (pattern_search): When turning an intermediate file
+ into a real target, keep the also_make list.
+ Free the dep->name if we didn't use it during enter_file().
+
+1999-07-16 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Don't allocate the commands buffer until
+ we're sure we found a makefile and won't return early (mem leak).
+
+ * job.c (start_job_command): Broken #ifdef test: look for F_SETFD,
+ not FD_SETFD. Close-on-exec isn't getting set on the bad_stdin
+ file descriptor and it's leaking :-/.
+ * getloadavg.c (getloadavg): Ditto.
+
+1999-07-15 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Fix some potential memory stomps parsing
+ `define' directives where no variable name is given.
+
+ * function.c (func_call): Rename from func_apply. Various code
+ cleanup and tightening.
+ (function_table): Add "call" as a valid builtin function.
+
+ * make.texinfo (Call Function): Document it.
+
+ * NEWS: Announce it.
+
+1999-07-09 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * variable.c (try_variable_definition) [__MSDOS__, WINDOWS32]:
+ Treat "override SHELL=" the same as just "SHELL=".
+
+1999-07-09 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_waiting_job): Don't get a second job token if we
+ already have one; if we're waiting on the load to go down
+ start_waiting_job() might get called twice on the same file.
+
+ * filedef.h (struct file): Add new field, mtime_before_update.
+ When notice_finished_file runs it assigns the cached last_mtime to
+ this field.
+ * remake.c (update_goal_chain): Notice that a file wasn't updated
+ by asking if it changed (g->changed) and comparing the current
+ cached time (last_mtime) with the previous one, stored in
+ mtime_before_update. The previous check ("did last_mtime changed
+ during the run of update_file?") fails for parallel builds because
+ last_mtime is set during reap_children, before update_file is run.
+ This causes update_goal_chain to always return -1 (nothing
+ rebuilt) when running parallel (-jN). This is OK during "normal"
+ builds since our caller (main) treats these cases identically in
+ that case, but if when rebuilding makefiles the difference is very
+ important, as it controls whether we re-exec or not.
+ * file.c (file_hash_enter): Copy the mtime_before_update field.
+ (snap_deps): Initialize mtime_before_update to -1.
+ * main.c (main): Initialize mtime_before_update on old (-o) and
+ new (-W) files.
+
+1999-07-08 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (switches): Define a new switch -R (or
+ --no-builtin-variables). This option disables the defining of all
+ the GNU make builtin variables.
+ (main): If -R was given, force -r as well.
+ * default.c (define_default_variables): Test the new flag.
+ * make.h: Declare global flag.
+ * make.texinfo (Options Summary): Document the new option.
+ (Implicit Variables): Ditto.
+
+1999-07-06 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Options Summary): Correct examples in
+ --print-data-base option summary (problem reported by David Morse
+ <morse@nichimen.com>).
+
+ * arscan.c: Add support for archives in Windows (VC++). Frank
+ Libbrecht <frankl@abzx.belgium.hp.com> provided info on how to do
+ this.
+ * NMakefile.template (CFLAGS_any): Remove NO_ARCHIVES from the
+ compile line.
+ * build_w32.bat: Ditto.
+
+ * remake.c (no_rule_error): Fix -include/sinclude so it doesn't
+ give errors if you try to -include the same file twice.
+ (updating_makefiles): New variable: we need to know this info in
+ no_rule_error() so we know whether to print an error or not.
+ (update_file_1): Unconditionally call no_rule_error(), don't try
+ to play games with the dontcare flag.
+
+1999-06-14 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Remaking Makefiles): Add a description of how to
+ prevent implicit rule searches for makefiles.
+
+ * make.1: Remove statement that make continues processing when -v
+ is given.
+
+1999-06-14 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Cast -1 arguments to
+ variable_expand_string() to long. Alexandre Sauve
+ <Alexandre.SAUVE@ifp.fr> reports that without casts, this breaks
+ on a NEC SUPER-UX SX-4 system (and it's wrong without a cast
+ anyway). Of course, (a) I'd really love to start using function
+ prototypes, and (b) there's a whole slew of issues related to int
+ vs. long and signed vs. unsigned in the length handling of
+ variable buffers, etc. Gross. Needs a complete mucking-out.
+ * expand.c (variable_expand): Ditto.
+
+ * acinclude.m4 (AC_FUNC_SELECT): Slight enhancement for AIX 3.2 by
+ Lars Hecking <lhecking@nmrc.ucc.ie>.
+
+ * read.c (get_next_mword): Allow colons to be escaped in target
+ names: fix for regression failure.
+
+1999-04-26 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Reset read_makefiles to empty after processing so
+ we get the right error message.
+
+1999-04-25 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Updates to @dircategory and @direntry suggested by
+ Karl Berry <karl@cs.umb.edu>.
+
+1999-04-23 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * job.c (start_job_command) [__MSDOS__]: Call unblock_sigs before
+ turning off dos_command_running, so child's signals produce the
+ right effect.
+
+ * commands.c (fatal_error_signal) [__MSDOS__]: Use EXIT_FAILURE
+ instead of 1.
+
+1999-04-18 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * configh.dos.template: Update to recognize that version 2.02 of
+ DJGPP contains sys_siglist stuff.
+
+1999-04-14 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Options/Recursion): Document the job server.
+ (Parallel): Tweaks.
+
+1999-04-13 Paul D. Smith <psmith@gnu.org>
+
+ Implement a new "job server" feature; the implementation was
+ suggested by Howard Chu <hyc@highlandsun.com>.
+
+ * configure.in (job-server): New disable option for job server
+ support--it's enabled by default. If it works well this will go
+ away.
+
+ * NEWS: Summarize the new feature.
+
+ * acconfig.h: New definition MAKE_JOBSERVER if job server support
+ is enabled.
+ * config.h-vms.template: Undef MAKE_JOBSERVER for this port.
+ * config.h.W32.template: Ditto.
+ * config.ami.template: Ditto.
+
+ * main.c (struct command_switch): Add a new type: int_string.
+ (switches[]) Use int_string for -j if MAKE_JOBSERVER.
+ (init_switches): Initialize the new int_string switch type.
+ (print_usage): New function, extracted from decode_switches().
+ (decode_switches): Call it. Decode the new int_string switch type.
+ (define_makeflags): Add new int_string switch data to MAKEFLAGS.
+ (job_fds[]) Array to contain the pipe file descriptors.
+ (main): Parse the job_slots_str option results. If necessary,
+ create the pipe and seed it with tokens. Set the non-blocking bit
+ for the read fd. Enable the signal handler for SIGCHLD even if we
+ have a non-hanging wait; it's needed to interrupt the select() in
+ job.c:start_waiting_job().
+
+ * make.h: Declare job_fds[].
+
+ * job.h (struct child): Add job_token field to store the token for
+ this job (if any).
+
+ * job.c (reap_children): When a child is fully reaped, release the
+ token back into the pipe.
+ (free_child): If the child to be freed still has a token, put it
+ back.
+ (new_job): Initialize the job_token member.
+ (start_waiting_job): For local jobs, if we're using the pipe, get
+ a token before we check the load, etc. We do this by performing a
+ non-blocking read in a loop. If the read fails, no token is
+ available. Do a select on the fd to wait for a token. We need to
+ re-enable the signal handler for SIGCHLD even if we have a
+ non-hanging waitpid() or wait3(), so that the signal will
+ interrupt the select() and we can wake up to reap children.
+ (child_handler): Re-enable the signal handler. The count is still
+ kept although it's not needed or used unless you don't have
+ waitpid() or wait3().
+
+1999-04-10 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Reset the considered bit on all the makefiles if
+ something failed to update; we need to examine them again if they
+ appear as normal targets in order to get the proper error message.
+
+1999-04-09 Paul D. Smith <psmith@gnu.org>
+
+ Performance enhancement from Tim Magill <tim.magill@telops.gte.com>.
+
+ * remake.c (update_file): If you have large numbers of
+ dependencies and you run in parallel, make can spend considerable
+ time each pass through the graph looking at branches it has
+ already seen. Since we only reap_children() when starting a pass,
+ not in the middle, if a branch has been seen already in that pass
+ nothing interesting can happen until the next pass. So, we toggle
+ a bit saying whether we've seen this target in this pass or not.
+ (update_goal_chain): Initially set the global considered toggle to
+ 1, since all targets initialize their boolean to 0. At the end of
+ each pass, toggle the global considered variable.
+ * filedef.h (struct file): Per-file considered toggle bit.
+ * file.c: New global toggle variable considered.
+
+1999-04-05 Paul D. Smith <psmith@gnu.org>
+
+ * arscan.c (ar_scan): Added support for ARFZMAG (compressed
+ archives?) for Digital UNIX C++. Information provided by
+ Patrick E. Krogel <pekrogel@mtu.edu>.
+ (ar_member_touch): Ditto.
+
+1999-04-03 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): If: a) we found a file and b) we didn't
+ create it and c) it's not marked as an implicit target and d) it
+ is marked as an intermediate target, then it was so marked due to
+ an .INTERMEDIATE special target, but it already existed in the
+ directory. In this case, unset the intermediate flag so we won't
+ delete it when make is done. It feels like it would be cleaner to
+ put this check in update_file_1() but I worry it'll get missed...
+
+1999-04-01 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): Use bcopy() to copy
+ overlapping strings, rather than strcpy(). ISO C says the latter
+ is undefined. Found this in a bug report from 1996! Ouch!
+
+1999-03-31 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (readline): Ignore carriage returns at the end of the
+ line, to allow Windows-y CRLF line terminators.
+
+1999-03-30 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Don't put build.sh here, since build.sh.in doesn't
+ exist initially. This cause autoreconf and automake to fail when
+ run on a clean CVS checkout. Instead, we create build.sh in the
+ Makefile (see below).
+
+ * Makefile.am: Remove BUILT_SOURCES; this is no longer relevant.
+ Put those files directly into EXTRA_DIST so they're distributed.
+ Create a local build rule to create build.sh.
+ Create a local maintainer-clean rule to delete all the funky
+ maintainers files.
+
+ * maintMakefile: Makefile.in depends on README, since automake
+ fails if it doesn't exist. Also don't remove glob/Makefile.in
+ here, as it causes problems.
+
+1999-03-26 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Substitute GLOBLIB if we need the link the
+ glob/libglob.a library.
+ * Makefile.am (make_LDADD): Use the subst variable GLOBLIB so we
+ don't link the local libglob.a at all if we don't need it.
+ * build.template: Don't compile glob/*.o unless we want globlib.
+ * maintMakefile (build.sh.in): Substitute the glob/*.o files
+ separately.
+
+1999-03-25 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Various typos and additions, pointed out by James
+ G. Sack <jsack@dornfeld.com>.
+
+1999-03-22 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Functions): Add a new section documenting the new
+ $(error ...) and $(warning ...) functions. Also updated copyright
+ dates.
+ * NEWS: Updated for the new functions.
+ * function.c (func_error): Implement the new $(error ...) and
+ $(warning ...) functions.
+ (function_table): Insert new functions into the table.
+ (func_firstword): Don't call find_next_token() with argv[0]
+ itself, since that function modifies the pointer.
+ * function.c: Cleanups and slight changes to the new method of
+ calling functions.
+
+1999-03-20 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ * function.c: Rewrite to use one C function per make function,
+ instead of a huge switch statement. Also allows some cleanup of
+ multi-architecture issues, and a cleaner API which makes things
+ like func_apply() simple.
+
+ * function.c (func_apply): Initial implementation. Expand either
+ a builtin function or a make variable in the context of some
+ arguments, provided as $1, $2, ... $N.
+
+1999-03-19 Eli Zaretskii <eliz@is.elta.co.il>
+1999-03-19 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * job.c (construct_command_argv_internal): Don't treat _all_
+ backslashes as escapes, only those which really escape a special
+ character. This allows most normal "\" directory separators to be
+ treated normally.
+
+1999-03-05 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Check for a system strdup().
+ * misc.c (xstrdup): Created. Suggestion by Han-Wen Nienhuys
+ <hanwen@cs.uu.nl>.
+ * make.h: Prototype xstrdup().
+ * remake.c (library_search): Use it.
+ * main.c (main): Use it.
+ (find_and_set_default_shell): Use it.
+ * job.c (construct_command_argv_internal): Use it.
+ * dir.c (find_directory): Use it.
+
+ * Makefile.am, configure.in: Use AC_SUBST_FILE to insert the
+ maintMakefile instead of "include", to avoid automake 1.4
+ incompatibility.
+
+1999-03-04 Paul D. Smith <psmith@gnu.org>
+
+ * amiga.c, amiga.h, ar.c, arscan.c, commands.c, commands.h,
+ * default.c, dep.h, dir.c, expand.c, file.c, filedef.h, function.c,
+ * implicit.c, job.c, job.h, main.c, make.h, misc.c, read.c, remake.c
+ * remote-cstms.c, remote-stub.c, rule.h, variable.c, variable.h,
+ * vpath.c, Makefile.ami, NMakefile.template, build.template,
+ * makefile.vms: Updated FSF address in the copyright notice.
+
+ * variable.c (try_variable_definition): If we see a conditional
+ variable and we decide to set it, re-type it as recursive so it
+ will be expanded properly later.
+
+1999-02-22 Paul D. Smith <psmith@gnu.org>
+
+ * NEWS: Mention new .LIBPATTERNS feature.
+
+ * make.texinfo (Libraries/Search): Describe the use and
+ ramifications of the new .LIBPATTERNS variable.
+
+ * remake.c (library_search): Instead of searching only for the
+ hardcoded expansion "libX.a" for a library reference "-lX", we
+ obtain a list of patterns from the .LIBPATTERNS variable and
+ search those in order.
+
+ * default.c: Added a new default variable .LIBPATTERNS. The
+ default for UNIX is "lib%.so lib%.a". Amiga and DOS values are
+ also provided.
+
+ * read.c: Remove bogus HAVE_GLOB_H references; always include
+ vanilla glob.h.
+
+1999-02-21 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (expand_function): Set value to 0 to avoid freeing it.
+ * variable.c (pop_variable_scope): Free the value of the variable.
+ (try_variable_definition): For simple variables, use
+ allocated_variable_expand() to avoid stomping on the variable
+ buffer when we still need it for other things.
+
+ * arscan.c: Modified to support AIX 4.3 big archives. The changes
+ are based on information provided by Phil Adams
+ <padams@austin.ibm.com>.
+
+1999-02-19 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Check to see if the GNU glob library is already
+ installed on the system. If so, _don't_ add -I./glob to the
+ compile line. Using the system glob code with the local headers
+ is very bad mojo!
+ Rewrite SCCS macros to use more autoconf facilities.
+
+ * Makefile.am: Move -Iglob out of INCLUDES; it'll get added to
+ CPPFLAGS by configure now.
+ Automake 1.4 introduced its own "include" feature which conflicts
+ with the maintMakefile stuff. A hack that seems to work is add a
+ space before the include :-/.
+
+ * build.template: Move -Iglob out of the compile line; it'll get
+ added to CPPFLAGS by configure now.
+
+1999-02-16 Glenn D. Wolf <Glenn_Wolf@email.sps.mot.com>
+
+ * arscan.c (ar_scan) [VMS]: Initialized VMS_member_date before
+ calling lbr$get_index since if the archive is empty,
+ VMS_get_member_info won't get called at all, and any leftover date
+ will be used. This bug shows up if any member of any archive is
+ made, followed by a dependency check on a different, empty
+ archive.
+
+1998-12-13 Martin Zinser <zinser@decus.decus.de>
+
+ * config.h-vms [VMS]: Set _POSIX_C_SOURCE. Redefine the getopt
+ functions so we don't use the broken VMS versions.
+ * makefile.com [VMS]: Allow debugging.
+ * dir.c (dir_setup_glob) [VMS]: Don't extern stat() on VMS.
+
+1998-11-30 Paul D. Smith <psmith@gnu.org>
+
+ * signame.c (init_sig): Check the sizes of signals being set up to
+ avoid array overwrites (if the system headers have problems).
+
+1998-11-17 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (record_files): Clean up some indentation.
+
+1998-11-08 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ * rule.c (print_rule_data_base): Fix arguments to fatal() call.
+
+1998-10-13 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): If the command list resolves to no
+ chars at all (e.g.: "foo:;$(empty)") then command_ptr is NULL;
+ quit early.
+
+1998-10-12 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * rule.c (print_rule_data_base): Ignore num_pattern_rules if it is
+ zero.
+
+1998-10-09 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Allow non-empty lines to expand to the
+ empty string after variable, etc., expansion, and be ignored.
+
+1998-09-21 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): Only add COMMAND.COM
+ "@echo off" line for non-UNIXy shells.
+
+1998-09-09 Paul D. Smith <psmith@gnu.org>
+
+ * w32/subproc/sub_proc.c: Add in missing HAVE_MKS_SHELL tests.
+
+1998-09-04 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): If we hit the "missing separator" error,
+ check for the common case of 8 spaces instead of a TAB and give an
+ extra comment to help people out.
+
+1998-08-29 Paul Eggert <eggert@twinsun.com>
+
+ * configure.in (AC_STRUCT_ST_MTIM_NSEC):
+ Renamed from AC_STRUCT_ST_MTIM.
+
+ * acinclude.m4 (AC_STRUCT_ST_MTIM_NSEC): Likewise.
+ Port to UnixWare 2.1.2 and pedantic Solaris 2.6.
+
+ * acconfig.h (ST_MTIM_NSEC):
+ Renamed from HAVE_ST_MTIM, with a new meaning.
+
+ * filedef.h (FILE_TIMESTAMP_FROM_S_AND_NS):
+ Use new ST_MTIM_NSEC macro.
+
+1998-08-26 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (check_dep): For any intermediate file, not just
+ secondary ones, try implicit and default rules if no explicit
+ rules are given. I'm not sure why this was restricted to
+ secondary rules in the first place.
+
+1998-08-24 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Special Targets): Update documentation for
+ .INTERMEDIATE: if used with no dependencies, then it does nothing;
+ old docs said it marked all targets as intermediate, which it
+ didn't... and which would be silly :).
+
+ * implicit.c (pattern_search): If we find a dependency in our
+ internal tables, make sure it's not marked intermediate before
+ accepting it as a found_file[].
+
+1998-08-20 Paul D. Smith <psmith@gnu.org>
+
+ * ar.c (ar_glob): Use existing alpha_compare() with qsort.
+ (ar_glob_alphacompare): Remove it.
+
+ Modify Paul Eggert's patch so we don't abandon older systems:
+
+ * configure.in: Warn the user if neither waitpid() nor wait3() is
+ available.
+
+ * job.c (WAIT_NOHANG): Don't syntax error on ancient hosts.
+ (child_handler, dead_children): Define these if WAIT_NOHANG is not
+ available.
+ (reap_children): Only track the dead_children count if no
+ WAIT_NOHANG. Otherwise, it's a boolean.
+
+ * main.c (main): Add back signal handler if no WAIT_NOHANG is
+ available; only use default signal handler if it is.
+
+1998-08-20 Paul Eggert <eggert@twinsun.com>
+
+ Install a more robust signal handling mechanism for systems which
+ support it.
+
+ * job.c (WAIT_NOHANG): Define to a syntax error if our host
+ is truly ancient; this should never happen.
+ (child_handler, dead_children): Remove.
+ (reap_children): Don't try to keep separate track of how many
+ dead children we have, as this is too bug-prone.
+ Just ask the OS instead.
+ (vmsHandleChildTerm): Fix typo in error message; don't mention
+ child_handler.
+
+ * main.c (main): Make sure we're not ignoring SIGCHLD/SIGCLD;
+ do this early, before we could possibly create a subprocess.
+ Just use the default behavior; don't have our own handler.
+
+1998-08-18 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * read.c (read_makefile) [__MSDOS__, WINDOWS32]: Add code to
+ recognize library archive members when dealing with drive spec
+ mess. Discovery and initial fix by George Racz <gracz@mincom.com>.
+
+1998-08-18 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Check for stdlib.h explicitly (some hosts have it
+ but don't have STDC_HEADERS).
+ * make.h: Use HAVE_STDLIB_H. Clean up some #defines.
+ * config.ami: Re-compute based on new config.h.in contents.
+ * config.h-vms: Ditto.
+ * config.h.W32: Ditto.
+ * configh.dos: Ditto.
+
+ * dir.c (find_directory) [WINDOWS32]: Windows stat() fails if
+ directory names end with `\' so strip it.
+
+1998-08-17 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Added copyright year to the printed copy. Removed
+ the price from the manual. Change the top-level reference to
+ running make to be "Invoking make" instead of "make Invocation",
+ to comply with GNU doc standards.
+
+ * make.h (__format__, __printf__): Added support for these in
+ __attribute__ macro.
+ (message, error, fatal): Use ... prototype form under __STDC__.
+ Add __format__ attributes for printf-style functions.
+
+ * configure.in (AC_FUNC_VPRINTF): Check for vprintf()/_doprnt().
+
+ * misc.c (message, error, fatal): Add preprocessor stuff to enable
+ creation of variable-argument functions with appropriate
+ prototypes, that works with ANSI, pre-ANSI, varargs.h, stdarg.h,
+ v*printf(), _doprnt(), or none of the above. Culled from GNU
+ fileutils and slightly modified.
+ (makefile_error, makefile_error): Removed (merged into error() and
+ fatal(), respectively).
+ * amiga.c: Use them.
+ * ar.c: Use them.
+ * arscan.c: Use them.
+ * commands.c: Use them.
+ * expand.c: Use them.
+ * file.c: Use them.
+ * function.c: Use them.
+ * job.c: Use them.
+ * main.c: Use them.
+ * misc.c: Use them.
+ * read.c: Use them.
+ * remake.c: Use them.
+ * remote-cstms.c: Use them.
+ * rule.c: Use them.
+ * variable.c: Use them.
+
+ * make.h (struct floc): New structure to store file location
+ information.
+ * commands.h (struct commands): Use it.
+ * variable.c (try_variable_definition): Use it.
+ * commands.c: Use it.
+ * default.c: Use it.
+ * file.c: Use it.
+ * function.c: Use it.
+ * misc.c: Use it.
+ * read.c: Use it.
+ * rule.c: Use it.
+
+1998-08-16 Paul Eggert <eggert@twinsun.com>
+
+ * filedef.h (FILE_TIMESTAMP_PRINT_LEN_BOUND): Add 10, for nanoseconds.
+
+1998-08-16 Paul Eggert <eggert@twinsun.com>
+
+ * filedef.h (FLOOR_LOG2_SECONDS_PER_YEAR): New macro.
+ (FILE_TIMESTAMP_PRINT_LEN_BOUND): Tighten bound, and try to
+ make it easier to understand.
+
+1998-08-14 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): We've already unquoted any colon chars
+ by the time we're done reading the targets, so arrange for
+ parse_file_seq() on the target list to not do so again.
+
+1998-08-05 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Added glob/configure.in data. We'll have the glob
+ code include the regular make config.h, rather than creating its
+ own.
+
+ * getloadavg.c (main): Change return type to int.
+
+1998-08-01 Paul Eggert <eggert@twinsun.com>
+
+ * job.c (reap_children): Ignore unknown children.
+
+1998-07-31 Paul D. Smith <psmith@gnu.org>
+
+ * make.h, filedef.h, dep.h, rule.h, commands.h, remake.c:
+ Add prototypes for functions. Some prototypes needed to be moved
+ in order to get #include order reasonable.
+
+1998-07-30 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Added MIN/MAX.
+ * filedef.h: Use them; remove FILE_TIMESTAMP_MIN.
+
+1998-07-30 Paul Eggert <eggert@twinsun.com>
+
+ Add support for sub-second timestamp resolution on hosts that
+ support it (just Solaris 2.6, so far).
+
+ * acconfig.h (HAVE_ST_MTIM, uintmax_t): New undefs.
+ * acinclude.m4 (jm_AC_HEADER_INTTYPES_H, AC_STRUCT_ST_MTIM,
+ jm_AC_TYPE_UINTMAX_T): New defuns.
+ * commands.c (delete_target): Convert file timestamp to
+ seconds before comparing to archive timestamp. Extract mod
+ time from struct stat using FILE_TIMESTAMP_STAT_MODTIME.
+ * configure.in (C_STRUCT_ST_MTIM, jm_AC_TYPE_UINTMAX_T): Add.
+ (AC_CHECK_LIB, AC_CHECK_FUNCS): Add clock_gettime.
+ * file.c (snap_deps): Use FILE_TIMESTAMP, not time_t.
+ (file_timestamp_now, file_timestamp_sprintf): New functions.
+ (print_file): Print file timestamps as FILE_TIMESTAMP, not
+ time_t.
+ * filedef.h: Include <inttypes.h> if available and if HAVE_ST_MTIM.
+ (FILE_TIMESTAMP, FILE_TIMESTAMP_STAT_MODTIME, FILE_TIMESTAMP_MIN,
+ FILE_TIMESTAMPS_PER_S, FILE_TIMESTAMP_FROM_S_AND_NS,
+ FILE_TIMESTAMP_DIV, FILE_TIMESTAMP_MOD, FILE_TIMESTAMP_S,
+ FILE_TIMESTAMP_NS, FILE_TIMESTAMP_PRINT_LEN_BOUND): New macros.
+ (file_timestamp_now, file_timestamp_sprintf): New decls.
+ (struct file.last_mtime, f_mtime, file_mtime_1, NEW_MTIME):
+ time_t -> FILE_TIMESTAMP.
+ * implicit.c (pattern_search): Likewise.
+ * vpath.c (vpath_search, selective_vpath_search): Likewise.
+ * main.c (main): Likewise.
+ * remake.c (check_dep, name_mtime, library_search, f_mtime): Likewise.
+ (f_mtime): Use file_timestamp_now instead of `time'.
+ Print file timestamp with file_timestamp_sprintf.
+ * vpath.c (selective_vpath_search): Extract file time stamp from
+ struct stat with FILE_TIMESTAMP_STAT_MODTIME.
+
+1998-07-28 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.77 released.
+
+ * dosbuild.bat: Change to DOS CRLF line terminators.
+
+ * make-stds.texi: Update from latest version.
+
+ * make.texinfo (Options Summary): Clarify that the -r option
+ affects only rules, not builtin variables.
+
+1998-07-27 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Make __attribute__ resolve to empty for non-GCC _and_
+ for GCC pre-2.5.x.
+
+ * misc.c (log_access): Print UID/GID's as unsigned long int for
+ maximum portability.
+
+ * job.c (reap_children): Print PIDs as long int for maximum
+ portability.
+
+1998-07-24 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS (*_INSTALL, *_UNINSTALL): Replace `true' with `:'.
+
+1998-07-25 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.76.94 released.
+
+1998-07-23 Paul D. Smith <psmith@gnu.org>
+
+ * config.h.W32.template: Make sure all the #defines of macros here
+ have a value (e.g., use ``#define HAVE_STRING_H 1'' instead of
+ just ``#define HAVE_STRING_H''. Keeps the preprocessor happy in
+ some contexts.
+
+ * make.h: Remove __attribute__((format...)) stuff; using it with
+ un-prototyped functions causes older GCC's to fail.
+
+ * Version 3.76.93 released.
+
+1998-07-22 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (print_file_data_base): Fix average calculation.
+
+1998-07-20 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (die): Postpone the chdir() until after
+ remove_intermediates() so that intermediate targets with relative
+ pathnames are removed properly.
+
+1998-07-17 Paul D. Smith <psmith@gnu.org>
+
+ * filedef.h (struct file): New flag: did we print an error or not?
+
+ * remake.c (no_rule_error): New function to print error messages,
+ extraced from remake_file().
+
+ * remake.c (remake_file): Invoke the new error print function.
+ (update_file_1): Invoke the error print function if we see that we
+ already tried this target and it failed, but that an error wasn't
+ printed for it. This can happen if a file is included with
+ -include or sinclude and couldn't be built, then later is also
+ the dependency of another target. Without this change, make just
+ silently stops :-/.
+
+1998-07-16 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Removed "beta" version designator.
+ Updated ISBN for the next printing.
+
+1998-07-13 Paul Eggert <eggert@twinsun.com>
+
+ * acinclude.m4: New AC_LFS macro to determine if special compiler
+ flags are needed to allow access to large files (e.g., Solaris 2.6).
+ * configure.in: Invoke it.
+
+1998-07-08 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS: track changes in Makefile.in.
+
+1998-07-07 Paul D. Smith <psmith@gnu.org>
+
+ * remote-cstms.c (start_remote_job): Move gethostbyaddr() to the
+ top so host is initialized early enough.
+
+ * acinclude.m4: New file. Need some special autoconf macros to
+ check for network libraries (-lsocket, -lnsl, etc.) when
+ configuring Customs.
+
+ * configure.in (make_try_customs): Invoke new network libs macro.
+
+1998-07-06 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.76.92 released.
+
+ * README.customs: Added to the distribution.
+
+ * configure.in (make_try_customs): Rewrite to require an installed
+ Customs library, rather than looking at the build directory.
+
+ * Makefile.am (man_MANS): Install make.1.
+ * make.1: Renamed from make.man.
+
+ * make.texinfo (Bugs): New mailing list address for GNU make bug
+ reports.
+
+1998-07-02 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.76.91 released.
+
+ * default.c: Added default rule for new-style RCS master file
+ storage; ``% :: RCS/%''.
+ Added default rules for DOS-style C++ files with suffix ".cpp".
+ They use the new LINK.cpp and COMPILE.cpp macros, which are set by
+ default to be equal to LINK.cc and COMPILE.cc.
+
+1998-06-19 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * job.c (start_job_command): Reset execute_by_shell after an empty
+ command was skipped.
+
+1998-06-09 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Keep track of the temporary filename created when
+ reading a makefile from stdin (-f-) and attempt to remove it
+ as soon as we know we're not going to re-exec. If we are, add it
+ to the exec'd make's cmd line with "-o" so the exec'd make doesn't
+ try to rebuild it. We still have a hole: if make re-execs then
+ the temporary file will never be removed. To fix this we'd need
+ a brand new option that meant "really delete this".
+ * AUTHORS, getopt.c, getopt1.c, getopt.h, main.c (print_version):
+ Updated mailing addresses.
+
+1998-06-08 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Andreas Luik <luik@isa.de> points out that the
+ check for makefile :: rules with commands but no dependencies
+ causing a loop terminates incorrectly.
+
+ * maintMakefile: Make a template for README.DOS to update version
+ numbers.
+
+1998-05-30 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * remake.c (update_file_1): Don't free the memory for the
+ dependency structure when dropping a circular dependency.
+
+1998-05-30 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * dir.c (file_exists_p, file_impossible_p, file_impossible)
+ [__MSDOS__, WINDOWS32]: Retain trailing slash in "d:/", and make
+ dirname of "d:foo" be "d:".
+
+1998-05-26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * read.c (read_makefile): Avoid running past EOS when scanning
+ file name after `include'.
+
+1998-05-26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * make.texinfo (Flavors): Correct description of conditional
+ assignment, which is not equivalent to ifndef.
+ (Setting): Likewise.
+
+1998-05-24 Paul D. Smith <psmith@gnu.org>
+
+ * arscan.c (ar_name_equal): strncmp() might be implemented as a
+ macro, so don't put preprocessor conditions inside the arguments
+ list.
+
+1998-05-23 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * read.c (read_makefile) [__MSDOS__, WINDOWS32]: Skip colons in
+ drive specs when parsing targets, target-specific variables and
+ static pattern rules. A colon can only be part of drive spec if
+ it is after the first letter in a token.
+
+1998-05-22 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * remake.c (f_mtime) [__MSDOS__]: Allow up to 3 sec of skew before
+ yelling bloody murder.
+
+ * dosbuild.bat: Use -DINCLUDEDIR= and -DLIBDIR= where appropriate.
+
+ * read.c (parse_file_seq): Combine the special file-handling code
+ for WINDOWS32 and __MSDOS__ into a single snippet.
+ (get_next_mword) [__MSDOS__, WINDOWS32]: Allow a word to include a
+ colon as part of a drive spec.
+
+ * job.c (batch_mode_shell) [__MSDOS__]: Declare.
+
+1998-05-20 Paul D. Smith <psmith@gnu.org>
+
+ * Version 3.76.90 released.
+
+1998-05-19 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Make Errors): Added a new appendix describing
+ common errors make might generate and how to resolve them (or at
+ least more information on what they mean).
+
+ * maintMakefile (NMAKEFILES): Use the new automake 1.3 feature
+ to create a dependency file to construct Makefile.DOS, SMakefile,
+ and NMakefile.
+ (.dep_segment): Generate the dependency fragment file.
+
+1998-05-14 Paul D. Smith <psmith@gnu.org>
+
+ * make.man: Minor changes.
+
+1998-05-13 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (pattern_matches,expand_function): Change variables
+ and types named "word" to something else, to avoid compilation
+ problems on Cray C90 Unicos.
+ * variable.h: Modify the function prototype.
+
+1998-05-11 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * job.c (construct_command_argv_internal) [WINDOWS32]: Turn off
+ echo when using a batch file, and make sure the command ends in a
+ newline.
+
+1998-05-03 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in (make_try_customs): Add some customs flags if the
+ user configures custom support.
+
+ * job.c, remote-cstms.c: Merge in changes for custom library.
+
+ * remote-stub.c: Add option to stub start_remote_job_p().
+
+1998-05-01 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): Install VPATH+ handling for archives; use
+ the hname field instead of the name field, and rehash when
+ appropriate.
+
+1998-04-30 Paul D. Smith <psmith@gnu.org>
+
+ * rule.c (print_rule_data_base): Print out any pattern-specific
+ variable values into the rules database.
+
+ * variable.c (print_variable_set): Make this variable extern, to
+ be called by print_rule_data_base() for pattern-specific variables.
+
+ * make.texinfo (Pattern-specific): Document pattern-specific
+ variables.
+
+1998-04-29 Paul D. Smith <psmith@gnu.org>
+
+ * expand.c (variable_expand_for_file): Make static; its only
+ called internally. Look up this target in the list of
+ pattern-specific variables and insert the variable set into the
+ queue to be searched.
+
+ * filedef.h (struct file): Add a new field to hold the
+ previously-found pattern-specific variable reference. Add a new
+ flag to remember whether we already searched for this file.
+
+ * rule.h (struct pattern_var): New structure for storing
+ pattern-specific variable values. Define new function prototypes.
+
+ * rule.c: New variables pattern_vars and last_pattern_var for
+ storage and handling of pattern-specific variable values.
+ (create_pattern_var): Create a new pattern-specific variable value
+ structure.
+ (lookup_pattern_var): Try to match a target to one of the
+ pattern-specific variable values.
+
+1998-04-22 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo (Target-specific): Document target-specific
+ variables.
+
+1998-04-21 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (define_variable_in_set): Made globally visible.
+ (lookup_variable_in_set): New function: like lookup_variable but
+ look only in a specific variable set.
+ (target_environment): Use lookup_variable_in_set() to get the
+ correct export rules for a target-specific variable.
+ (create_new_variable_set): Create a new variable set, and just
+ return it without installing it anywhere.
+ (push_new_variable_scope): Reimplement in terms of
+ create_new_variable_set.
+
+ * read.c (record_target_var): Like record_files, but instead of
+ files create a target-specific variable value for each of the
+ listed targets. Invoked from read_makefile() when the target line
+ turns out to be a target-specific variable assignment.
+
+1998-04-19 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (read_makefile): Rewrite the entire target parsing
+ section to implement target-specific variables. In particular, we
+ cannot expand the entire line as soon as it's read in, since we
+ may want to evaluate parts of it with different variable contexts
+ active. Instead, start expanding from the beginning until we find
+ the `:' (or `::'), then determine what kind of line this is and
+ continue appropriately.
+
+ * read.c (get_next_mword): New function to parse a makefile line
+ by "words", considering an entire variable or function as one
+ word. Return the type read in, along with its starting position
+ and length.
+ (enum make_word_type): The types of words that are recognized by
+ get_next_mword().
+
+ * variable.h (struct variable): Add a flag to specify a per-target
+ variable.
+
+ * expand.c: Make variable_buffer global. We need this during the
+ new parsing of the makefile.
+ (variable_expand_string): New function. Like variable_expand(),
+ but start at a specific point in the buffer, not the beginning.
+ (variable_expand): Rewrite to simply call variable_expand_string().
+
+1998-04-13 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_goal_chain): Allow the rebuilding makefiles
+ step to use parallel jobs. Not sure why this was disabled:
+ hopefully we won't find out :-/.
+
+1998-04-11 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Set the CURDIR makefile variable.
+ * make.texinfo (Recursion): Document it.
+
+1998-03-17 Paul D. Smith <psmith@gnu.org>
+
+ * misc.c (makefile_fatal): If FILE is nil, invoke plain fatal().
+ * variable.c (try_variable_definition): Use new feature.
+
+1998-03-10 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Don't pass included, rebuilt makefiles to
+ re-exec'd makes with -o. Reopens a possible loop, but it caused
+ too many problems.
+
+1998-03-02 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (try_variable_definition): Implement ?=.
+ * make.texinfo (Setting): Document it.
+
+1998-02-28 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * job.c (start_job_command): Reset execute_by_shell after an empty
+ command, like ":", has been seen.
+
+Tue Oct 07 15:00:00 1997 Phil Brooks <phillip_brooks@hp.com>
+
+ * make.h [WINDOWS32]: make case sensitivity configurable
+ * dir.c [WINDOWS32]: make case sensitivity configurable
+ * README.W32: Document case sensitivity
+ * config.ami: Share case warping code with Windows
+
+Mon Oct 6 18:48:45 CDT 1997 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * w32/subproc/sub_proc.c: Added support for MKS toolkit shell
+ (turn on HAVE_MKS_SHELL).
+ * read.c [WINDOWS32]: Fixed a problem with multiple target rules
+ reported by Gilbert Catipon (gcatipon@tibco.com). If multiple
+ path tokens in a rule did not have drive letters, make would
+ incorrectly concatenate the 2 tokens together.
+ * main.c/variable.c [WINDOWS32]: changed SHELL detection code to
+ follow what MSDOS did. In addition to watching for SHELL variable
+ updates, make's main will attempt to default the value of SHELL
+ before and after makefiles are parsed.
+ * job.c/job.h [WINDOWS32]: The latest changes made to enable use
+ of the GNUWIN32 shell from make could cause make to fail due to a
+ concurrency condition between parent and child processes. Make
+ now creates a batch file per job instead of trying to reuse the
+ same singleton batch file.
+ * job.c/job.h/function.c/config.h.W32 [WINDOWS32]: Renamed macro
+ from HAVE_CYGNUS_GNUWIN32_TOOLS to BATCH_MODE_ONLY_SHELL. Reworked
+ logic to reduce complexity. WINDOWS32 now uses the unixy_shell
+ variable to detect Bourne-shell compatible environments. There is
+ also a batch_mode_shell variable that determines whether not
+ command lines should be executed via script files. A WINDOWS32
+ system with no sh.exe installed would have unixy_shell set to
+ FALSE and batch_mode_shell set to TRUE. If you have a unixy shell
+ that does not behave well when invoking things via 'sh -c xxx',
+ you may want to turn on BATCH_MODE_ONLY_SHELL and see if things
+ improve.
+ * NMakefile: Added /D DEBUG to debug build flags so that unhandled
+ exceptions could be debugged.
+
+Mon Oct 6 00:04:25 1997 Rob Tulloh <rob_tulloh@dev.tivoli.com>
+
+ * main.c [WINDOWS32]: The function define_variable() does not
+ handle NULL. Test before calling it to set Path.
+ * main.c [WINDOWS32]: Search Path again after makefiles have been
+ parsed to detect sh.exe.
+ * job.c [WINDOWS32]: Added support for Cygnus GNU WIN32 tools.
+ To use, turn on HAVE_CYGNUS_GNUWIN32_TOOLS in config.h.W32.
+ * config.h.W32: Added HAVE_CYGNUS_GNUWIN32_TOOLS macro.
+
+Sun Oct 5 22:43:59 1997 John W. Eaton <jwe@bevo.che.wisc.edu>
+
+ * glob/glob.c (glob_in_dir) [VMS]: Globbing shouldn't be
+ case-sensitive.
+ * job.c (child_execute_job) [VMS]: Use a VMS .com file if the
+ command contains a newline (e.g. from a define/enddef block).
+ * vmsify.c (vmsify): Return relative pathnames wherever possible.
+ * vmsify.c (vmsify): An input string like "../.." returns "[--]".
+
+Wed Oct 1 15:45:09 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * NMakefile: Changed nmake to $(MAKE).
+ * subproc.bat: Take the make command name from the command
+ line. If no command name was given, default to nmake.
+ * job.c [MSDOS, WINDOWS32]: Fix memory stomp: temporary file names
+ are now always created in heap memory.
+ * w32/subproc/sub_proc.c: New implementation of make_command_line()
+ which is more compatible with different Bourne shell implementations.
+ Deleted the now obsolete fix_command_line() function.
+ * main.c [WINDOWS32]: Any arbitrary spelling of Path can be
+ detected. Make will ensure that the special spelling `Path' is
+ inserted into the environment when the path variable is propagated
+ within itself and to make's children.
+ * main.c [WINDOWS32]: Detection of sh.exe was occurring too
+ soon. The 2nd check for the existence of sh.exe must come after
+ the call to read_all_makefiles().
+
+Fri Sep 26 01:14:18 1997 <zinser@axp602.gsi.de>
+
+ * makefile.com [VMS]: Fixed definition of sys.
+ * readme.vms: Comments on what's changed lately.
+
+Fri Sep 26 01:14:18 1997 John W. Eaton <jwe@bevo.che.wisc.edu>
+
+ * read.c (read_all_makefiles): Allow make to find files named
+ "MAKEFILE" with no extension on VMS.
+ * file.c (lookup_file): Lowercase filenames on VMS.
+
+1997-09-29 Paul D. Smith <psmith@baynetworks.com>
+
+ * read.c (read_makefile): Reworked target detection again; the old
+ version had an obscure quirk.
+
+Fri Sep 19 09:20:49 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.76.1 released.
+
+ * Makefile.am: Add loadavg files to clean rules.
+
+ * configure.in (AC_OUTPUT): Remove stamp-config; no longer needed.
+ * Makefile.ami (distclean): Ditto.
+ * SMakefile (distclean): Ditto.
+
+ * main.c (main): Arg count should be int, not char! Major braino.
+
+Tue Sep 16 10:18:22 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.76 released.
+
+Tue Sep 2 10:07:39 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * function.c (expand_function): When processing $(shell...)
+ translate a CRLF (\r\n) sequence as well as a newline (\n) to a
+ space. Also remove an ending \r\n sequence.
+ * make.texinfo (Shell Function): Document it.
+
+Fri Aug 29 12:59:06 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * w32/pathstuff.c (convert_Path_to_windows32): Fix problem where
+ paths which contain single character entries like `.' are not
+ handled correctly.
+
+ * README.W32: Document path handling issues on Windows systems.
+
+Fri Aug 29 02:01:27 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.75.93.
+
+Thu Aug 28 19:39:06 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * job.c (exec_command) [WINDOWS32]: If exec_command() is invoked
+ from main() to re-exec make, the call to execvp() would
+ incorrectly return control to parent shell before the exec'ed
+ command could run to completion. I believe this is a feature of
+ the way that execvp() is implemented on top of WINDOWS32 APIs. To
+ alleviate the problem, use the supplied process launch function in
+ the sub_proc library and suspend the parent process until the
+ child process has run. When the child exits, exit the parent make
+ with the exit code of the child make.
+
+Thu Aug 28 17:04:47 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Makefile.DOS.template (distdir): Fix a line that got wrapped in
+ email.
+
+ * Makefile.am (loadavg): Give the necessary cmdline options when
+ linking loadavg.
+
+ * configure.in: Check for pstat_getdynamic for getloadvg on HP.
+
+ * job.c (start_job_command) [VMS, _AMIGA]: Don't perform empty
+ command optimization on these systems; it doesn't make sense.
+
+Wed Aug 27 17:09:32 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.75.92
+
+Tue Aug 26 11:59:15 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * main.c (print_version): Add '97 to copyright years.
+
+ * read.c (do_define): Check the length of the array before looking
+ at a particular offset.
+
+ * job.c (construct_command_argv_internal): Examine the last byte
+ of the previous arg, not the byte after that.
+
+Sat Aug 23 1997 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS.template: New file (converted to Makefile.DOS in
+ the distribution).
+
+ * configure.bat: Rewrite to use Makefile.DOS instead of editing
+ Makefile.in. Add support for building from outside of the source
+ directory. Fail if the environment block is too small.
+
+ * configh.dos: Use <sys/config.h>.
+
+ * README.DOS: Update instructions.
+
+Fri Aug 22 1997 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * job.c (start_job_command) [__MSDOS__]: Don't test for "/bin/sh"
+ literally, use value of unixy_shell instead.
+
+ * filedef.h (NEW_MTIME): Use 1 less than maximum possible value if
+ time_t is unsigned.
+
+Sat Aug 16 00:56:15 1997 John W. Eaton <jwe@bevo.che.wisc.edu>
+
+ * vmsify.c (vmsify, case 11): After translating `..' elements, set
+ nstate to N_OPEN if there are still more elements to process.
+ (vmsify, case 2): After translating `foo/bar' up to the slash,
+ set nstate to N_OPEN, not N_DOT.
+
+Fri Aug 8 15:18:09 1997 John W. Eaton <jwe@bevo.che.wisc.edu>
+
+ * dir.c (vmsstat_dir): Leave name unmodified on exit.
+ * make.h (PATH_SEPARATOR_CHAR): Set to comma for VMS.
+ * vpath.c: Fix comments to refer to path separator, not colon.
+ (selective_vpath_search): Avoid Unixy slash handling for VMS.
+
+Thu Aug 7 22:24:03 1997 John W. Eaton <jwe@bevo.che.wisc.edu>
+
+ * ar.c [VMS]: Don't declare ar_member_touch.
+ Delete VMS version of ar_member_date.
+ Enable non-VMS versions of ar_member_date and ar_member_date_1 for
+ VMS too.
+ * arscan.c (VMS_get_member_info): New function.
+ (ar_scan): Provide version for VMS systems.
+ (ar_name_equal): Simply compare name and mem on VMS systems.
+ Don't define ar_member_pos or ar_member_touch on VMS systems.
+
+ * config.h-vms (pid_t, uid_t): Don't define.
+
+ * remake.c: Delete declaration of vms_stat.
+ (name_mtime): Don't call vms_stat.
+ (f_mtime) [VMS]: Funky time value manipulation no longer necessary.
+
+ * file.c (print_file): [VMS] Use ctime, not cvt_time.
+
+ * make.h [VMS]: Don't define POSIX.
+
+ * makefile.com (filelist): Include ar and arscan.
+ Also include them in the link commands.
+ Don't define NO_ARCHIVES in cc command.
+
+ * makefile.vms (ARCHIVES, ARCHIVES_SRC): Uncomment.
+ (defines): Delete NO_ARCHIVES from list.
+
+ * remake.c (f_mtime): Only check to see if intermediate file is
+ out of date if it also exists (i.e., mtime != (time_t) -1).
+
+ * vmsdir.h (u_long, u_short): Skip typedefs if using DEC C.
+
+Fri Jun 20 23:02:07 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * w32/subproc/sub_proc.c: Get W32 sub_proc to handle shebang
+ (#!/bin/sh) in script files correctly.
+ Fixed a couple of memory leaks.
+ Fixed search order in find_file() (w32/subproc/sub_proc.c) so that
+ files with extensions are preferred over files without extensions.
+ Added search for files with .cmd extension too.
+ * w32/subproc/misc.c (arr2envblk): Fixed memory leak.
+
+Mon Aug 18 09:41:08 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.75.91
+
+Fri Aug 15 13:50:54 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * read.c (do_define): Remember to count the newline after the endef.
+
+Thu Aug 14 23:14:37 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * many: Rewrote builds to use Automake 1.2.
+
+ * AUTHORS: New file.
+ * maintMakefile: Contains maintainer-only make snippets.
+ * GNUmakefile: This now only runs the initial auto* tools.
+ * COPYING,texinfo.tex,mkinstalldirs,install-sh: Removed (obtained
+ automatically by automake).
+ * compatMakefile: Removed (not needed anymore).
+ * README,build.sh.in: Removed (built from templates).
+ * config.h.in,Makefile.in: Removed (built by tools).
+
+Wed Aug 13 02:22:08 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * make.texinfo: Updates for DOS/Windows information (Eli Zaretskii)
+ * README,README.DOS: Ditto.
+
+ * remake.c (update_file_1,f_mtime): Fix GPATH handling.
+ * vpath.c (gpath_search): Ditto.
+
+ * file.c (rename_file): New function: rehash, but also rename to
+ the hashname.
+ * filedef.h: Declare it.
+
+ * variable.c (merge_variable_set_lists): Remove free() of variable
+ set; since various files can share variable sets we don't want to
+ free them here.
+
+Tue Aug 12 10:51:54 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * configure.in: Require autoconf 2.12
+
+ * make.texinfo: Replace all "cd subdir; $(MAKE)" examples with a
+ more stylistically correct "cd subdir && $(MAKE)".
+
+ * main.c: Global variable `clock_skew_detected' defined.
+ (main): Print final warning if it's set.
+ * make.h: Declare it.
+ * remake.c (f_mtime): Test and set it.
+
+ * job.c (start_job_command): Add special optimizations for
+ "do-nothing" rules, containing just the shell no-op ":". This is
+ useful for timestamp files and can make a real difference if you
+ have a lot of them (requested by Fergus Henderson <fjh@cs.mu.oz.au>).
+
+ * configure.in,Makefile.in: Rewrote to use the new autoconf
+ program_transform_name macro.
+
+ * function.c (function_strip): Strip newlines as well as spaces
+ and TABs.
+
+Fri Jun 6 23:41:04 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * remake.c (f_mtime): Datestamps on FAT-based files are rounded to
+ even seconds when stored, so if the date check fails on WINDOWS32
+ systems, see if this "off-by-one" error is the problem.
+
+ * General: If your TZ environment variable is not set correctly
+ then all your timestamps will be off by hours. So, set it!
+
+Mon Apr 7 02:06:22 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * Version 3.75.1
+
+ * compatMakefile (objs): Define & use the $(GLOB) variable so
+ that it's removed correctly from build.sh.in when it's built.
+
+ * configure.in: On Solaris we can use the kstat_*() functions to
+ get load averages without needing special permissions. Add a
+ check for -lkstat to see if we have it.
+
+ * getloadavg.c (getloadavg): Use HAVE_LIBKSTAT instead of SUN5 as
+ the test to enable kstat_open(), etc. processing.
+
+Fri Apr 4 20:21:18 1997 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * <lots>: Fixes to work in the DJGPP DOS environment.
+
+Mon Mar 31 02:42:52 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * function.c (expand_function): Added new function $(wordlist).
+
+ * make.texinfo (Filename Functions): Document $(wordlist) function.
+
+ * vpath.c (build_vpath_lists): Construct the GPATH variable
+ information in the same manner we used to construct VPATH.
+ (gpath_search): New function to search GPATH.
+
+ * make.h: Declare the new function.
+
+ * remake.c (update_file_1): Call it, and keep VPATH if it's found.
+
+ * make.texinfo (Search Algorithm): Document GPATH variable.
+
+Sun Mar 30 20:57:16 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * main.c (handle_non_switch_argument): Defined the MAKECMDGOALS
+ variable to contain the user options passed in on the cmd line.
+
+ * make.texinfo (Goals): Document MAKECMDGOALS variable.
+
+ * remake.c (f_mtime): Print a warning if we detect a clock skew
+ error, rather than failing.
+
+ * main.c (main): If we rebuild any makefiles and need to re-exec,
+ add "-o<mkfile>" options for each makefile rebuilt to avoid
+ infinite looping.
+
+Fri Mar 28 15:26:05 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * job.c (construct_command_argv_internal): Track whether the last
+ arg in the cmd string was empty or not (Roland).
+ (construct_command_argv_internal): If the shell line is empty,
+ don't do anything (Roland).
+
+ * glob/glob.h,glob/glob.c,glob/fnmatch.c,glob/fnmatch.h: Install
+ the latest changes from the GLIBC version of glob (Ulrich Drepper).
+
+ * getloadavg.c,make-stds.texi: New version (Roland).
+
+ * (ALL): Changed WIN32 to W32 or WINDOWS32 (RMS).
+
+Mon Mar 24 15:33:34 1997 Rob Tulloh <rob_tulloh@tivoli.com>
+
+ * README.W32: Describe preliminary FAT support.
+
+ * build_w32.bat: Use a variable for the final exe name.
+
+ * dir.c (find_directory): W32: Find the filesystem type.
+ (dir_contents_file_exists_p): W32: for FAT filesystems, always
+ rehash since FAT doesn't change directory mtime on change.
+
+ * main.c (handle_runtime_exceptions): W32: Add an
+ UnhandledExceptionFilter so that when make bombs due to ^C or a
+ bug, it won't cause a GUI requestor to pop up unless debug is
+ turned on.
+ (main): Call it.
+
+Mon Mar 24 00:57:34 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * configure.in, config.h.in, config.ami, config.h-vms, config.h.w32:
+ Check for memmove() function.
+
+ * make.h (bcopy): If memmove() available, define bcopy() to use it.
+ Otherwise just use bcopy(). Don't use memcpy(); it's not guaranteed
+ to handle overlapping moves.
+
+ * read.c (read_makefile): Fix some uninitialized memory reads
+ (reported by Purify).
+
+ * job.c (construct_command_argv_internal): Use bcopy() not
+ strcpy(); strcpy() isn't guaranteed to handle overlapping moves.
+
+ * Makefile.in: Change install-info option ``--infodir'' to
+ ``--info-dir'' for use with new texinfo.
+
+ * function.c (expand_function): $(basename) and $(suffix) should
+ only search for suffixes as far back as the last directory (e.g.,
+ only the final filename in the path).
+
+Sun Mar 23 00:13:05 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * make.texinfo: Add @dircategory/@direntry information.
+ (Top): Remove previous reference to (dir) (from RMS).
+ (Static Usage): Add "all:" rule to example.
+ (Automatic Dependencies): fix .d file creation example.
+
+ * Install VPATH+ patch:
+
+ * filedef.h (struct file): Add in hname field to store the hashed
+ filename, and a flag to remember if we're using the vpath filename
+ or not. Renamed a few functions for more clarity.
+
+ * file.c (lookup_file,enter_file,file_hash_enter): Store filenames
+ in the hash table based on their "hash name". We can change this
+ while keeping the original target in "name".
+ (rehash_file): Renamed from "rename_file" to be more accurate.
+ Changes the hash name, but not the target name.
+
+ * remake.c (update_file_1): Modify -d output for more detailed
+ VPATH info. If we don't need to rebuild, use the VPATH name.
+ (f_mtime): Don't search for vpath if we're ignoring it. Call
+ renamed function rehash_file. Call name_mtime instead of
+ file_mtime, to avoid infinite recursion since the file wasn't
+ actually renamed.
+
+ * implicit.c (pattern_search): if we find an implicit file in
+ VPATH, save the original name not the VPATH name.
+
+ * make.texinfo (Directory Search): Add a section on the new VPATH
+ functionality.
+
+Sun Dec 1 18:36:04 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * dir.c (file_exists_p, file_impossible, file_impossible_p): If
+ dirname is empty replace it by the name of the root directory.
+ Note that this doesn't work (yet) for W32, Amiga, or VMS.
+
+Tue Oct 08 13:57:03 1996 Rob Tulloh <tulloh@tivoli.com>
+
+ * main.c (main): W32 bug fix for PATH vars.
+
+Tue Sep 17 1996 Paul Eggert <eggert@twinsun.com>
+
+ * filedef.h (NEW_MTIME): Don't assume that time_t is a signed
+ 32-bit quantity.
+
+ * make.h: (CHAR_BIT, INTEGER_TYPE_SIGNED, INTEGER_TYPE_MAXIMUM,
+ INTEGER_TYPE_MINIMUM): New macros.
+
+Tue Aug 27 01:06:34 1996 Roland McGrath <roland@baalperazim.frob.com>
+
+ * Version 3.75 released.
+
+ * main.c (print_version): Print out bug-reporting address.
+
+Mon Aug 26 19:55:47 1996 Roland McGrath <roland@baalperazim.frob.com>
+
+ * main.c (print_data_base): Don't declare ctime; headers do it for us
+ already.
+
+Sun Jul 28 15:37:09 1996 Rob Tulloh (tulloh@tivoli.com)
+
+ * w32/pathstuff.c: Turned convert_vpath_to_w32() into a
+ real function. This was done so that VPATH could contain
+ white space separated pathnames. Please note that directory
+ paths (in VPATH/vpath context) containing white space are not
+ supported (just as they are not under Unix). See README.W32
+ for suggestions.
+
+ * w32/include/pathstuff.h: Added prototype for the new
+ function convert_vpath_to_w32. Deleted macro for same.
+
+ * README.W32: Added some notes about why I chose not to try
+ and support pathnames which contain white space and some
+ workaround suggestions.
+
+Thu Jul 25 19:53:31 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * GNUmakefile (mkdep-nolib): Use -MM option unconditionally.
+
+ * Version 3.74.7.
+
+ * main.c (define_makeflags): Back up P to point at null terminator
+ when killing final space and dash before setting MFLAGS.
+
+ From Robert Hoehne <robert.hoehne@Mathematik.TU-Chemnitz.DE>:
+ * dir.c [__MSDOS__ && DJGPP > 1]: Include <libc/dosio.h> and defin
+ `__opendir_flags' initialized to 0.
+ (dosify) [__MSDOS__ && DJGPP > 1]: Return name unchanged if _USE_LFN.
+ (find_directory) [__MSDOS__ && DJGPP > 1]: If _USE_LGN, set
+ __opendir_flags to __OPENDIR_PRESERVE_CASE.
+
+ * vmsfunctions.c (vms_stat): `sys$dassgn (DevChan);' added by kkaempf.
+
+ * GNUmakefile (w32files): Add NMakefile.
+
+ * NMakefile (LDFLAGS_debug): Value fixed by tulloh.
+
+Sat Jul 20 12:32:10 1996 Klaus Kämpf (kkaempf@progis.de)
+
+ * remake.c (f_mtime) [VMS]: Add missing `if' conditional for future
+ modtime check.
+ * config.h-vms, makefile.vms, readme.vms, vmsify.c: Update address.
+
+Sat Jul 20 05:29:43 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * configure.in: Require autoconf 2.10 or later.
+
+Fri Jul 19 16:57:27 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * Version 3.74.6.
+
+ * GNUmakefile (w32files): New variable.
+ (distfiles): Add it.
+ * w32: Updated by Rob Tulloh.
+
+ * makefile.vms (LOADLIBES): Fix typo.
+
+Sun Jul 14 12:59:27 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * job.c (construct_command_argv_internal): Fix up #else, #endifs.
+
+ * configh.dos: Define HAVE_DIRENT_H instead of DIRENT.
+
+ * remake.c (f_mtime): Don't compare MTIME to NOW if MTIME == -1.
+
+ * Version 3.74.5.
+
+ * main.c (main): Exit with status 2 when update_goal_chain returns 2.
+
+Sat Jun 22 14:56:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * configure.in: Don't check for _sys_siglist.
+ * make.h [HAVE__SYS_SIGLIST]: Don't test this; just punt if there is
+ no strsignal or sys_siglist.
+
+ * read.c (conditional_line): Strip ws in `ifeq (a , b)' so it is the
+ same as `ifeq (a, b)'.
+
+ * job.c (reap_children): Don't call die if handling_fatal_signal.
+
+ * file.c (file_hash_enter): Allow renaming :: to : when latter is
+ non-target, or : to :: when former is non-target.
+
+ * job.c (start_job_command): Call block_sigs.
+ (block_sigs): New function, broken out of start_job_command.
+ (reap_children): Block fatal signals around removing dead child from
+ chain and adjusting job_slots_used.
+ * job.h: Declare block_sigs.
+
+ * remote-stub.c (remote_setup, remote_cleanup): New (empty) functions.
+ * main.c (main): Call remote_setup.
+ (die): Call remote_cleanup.
+
+ * job.c (reap_children): Quiescent value of shell_function_pid is
+ zero, not -1.
+
+ * main.c (print_version): Add 96 to copyright years.
+
+Sat Jun 15 20:30:01 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * read.c (find_char_unquote): Avoid calling strlen on every call
+ just to throw away the value most of the time.
+
+Sun Jun 2 12:24:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * main.c (decode_env_switches): Prepend '-' to ARGV[1] if it contains
+ no '=', regardless of ARGC.
+ (define_makeflags): Elide leading '-' from MAKEFLAGS value if first
+ word is short option, regardless of WORDS.
+
+Wed May 22 17:24:51 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * makefile.vms: Set LOADLIBES.
+ * makefile.com (link_using_library): Fix typo.
+
+Wed May 15 17:37:26 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * dir.c (print_dir_data_base): Use %ld dev and ino and cast them to
+ long.
+
+Wed May 15 10:14:14 CDT 1996 Rob Tulloh <tulloh@tivoli.com>
+
+ * dir.c: W32 does not support inode. For now, fully qualified
+ pathname along with st_mtime will be keys for files.
+ Fixed problem where vpath can be confused when files
+ are added to a directory after the directory has already been
+ read in. The code now attempts to reread the directory if it
+ discovers that the datestamp on the directory has changed since
+ it was cached by make. This problem only seems to occur on W32
+ right now so it is lumped under port #ifdef WINDOWS32.
+
+ * function.c: W32: call subproc library (CreateProcess()) instead of
+ fork/exec.
+
+ * job.c: W32: Added the code to do fork/exec/waitpid style processing
+ on W32 systems via calls to subproc library.
+
+ * main.c: W32: Several things added here. First, there is code
+ for dealing with PATH and SHELL defaults. Make tries to figure
+ out if the user has %PATH% set in the environment and sets it to
+ %Path% if it is not set already. Make also looks to see if sh.exe
+ is anywhere to be found. Code path through job.c will change
+ based on existence of a working Bourne shell. The checking for
+ default shell is done twice: once before makefiles are read in
+ and again after. Fall back to MSDOS style execution mode if no sh.exe
+ is found. Also added some debug support that allows user to pause make
+ with -D switch and attach a debugger. This is especially useful for
+ debugging recursive calls to make where problems appear only in the
+ sub-make.
+
+ * make.h: W32: A few macros and header files for W32 support.
+
+ * misc.c: W32: Added a function end_of_token_w32() to assist
+ in parsing code in read.c.
+
+ * read.c: W32: Fixes similar to MSDOS which allow colon to
+ appear in filenames. Use of colon in filenames would otherwise
+ confuse make.
+
+ * remake.c: W32: Added include of io.h to eliminate compiler
+ warnings. Added some code to default LIBDIR if it is not set
+ on W32.
+
+ * variable.c: W32: Added support for detecting Path/PATH
+ and converting them to semicolon separated lists for make's
+ internal use. New function sync_Path_environment()
+ which is called in job.c and function.c before creating a new
+ process. Caller must set Path in environment since we don't
+ have fork() to do this for us.
+
+ * vpath.c: W32: Added detection for filenames containing
+ forward or backward slashes.
+
+ * NMakefile: W32: Visual C compatible makefile for use with nmake.
+ Use this to build GNU make the first time on Windows NT or Windows 95.
+
+ * README.W32: W32: Contains some helpful notes.
+
+ * build_w32.bat: W32: If you don't like nmake, use this the first
+ time you build GNU make on Windows NT or Windows 95.
+
+ * config.h.W32: W32 version of config.h
+
+ * subproc.bat: W32: A bat file used to build the
+ subproc library from the top-level NMakefile. Needed because
+ WIndows 95 (nmake) doesn't allow you to cd in a make rule.
+
+ * w32/include/dirent.h
+ * w32/compat/dirent.c: W32: opendir, readdir, closedir, etc.
+
+ * w32/include/pathstuff.h: W32: used by files needed functions
+ defined in pathstuff.c (prototypes).
+
+ * w32/include/sub_proc.h: W32: prototypes for subproc.lib functions.
+
+ * w32/include/w32err.h: W32: prototypes for w32err.c.
+
+ * w32/pathstuff.c: W32: File and Path/Path conversion functions.
+
+ * w32/subproc/build.bat: W32: build script for subproc library
+ if you don't wish to use nmake.
+
+ * w32/subproc/NMakefile: W32: Visual C compatible makefile for use
+ with nmake. Used to build subproc library.
+
+ * w32/subproc/misc.c: W32: subproc library support code
+ * w32/subproc/proc.h: W32: subproc library support code
+ * w32/subproc/sub_proc.c: W32: subproc library source code
+ * w32/subproc/w32err.c: W32: subproc library support code
+
+Mon May 13 14:37:42 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * Version 3.74.4.
+
+ * GNUmakefile (vmsfiles): Fix typo.
+
+ * GNUmakefile (amigafiles): Add amiga.h.
+
+Sun May 12 19:19:43 1996 Aaron Digulla <digulla@fh-konstanz.de>
+
+ * dir.c: New function: amigafy() to fold filenames
+ Changes HASH() to HASHI() to fold filenames on Amiga.
+ Stringcompares use strieq() instead of streq()
+ The current directory on Amiga is "" instead of "."
+ * file.c: Likewise.
+
+ * amiga.c: New function wildcard_expansion(). Allows to use
+ Amiga wildcards with $(wildcard )
+
+ * amiga.h: New file. Prototypes for amiga.c
+
+ * function.c: Use special function wildcard_expansion() for
+ $(wildcard ) to allow Amiga wildcards
+ The current directory on Amiga is "" instead of "."
+
+ * job.c: No Pipes on Amiga, too
+ (load_too_high) Neither on Amiga
+ ENV variable on Amiga are in a special directory and are not
+ passed as third argument to main().
+
+ * job.h: No envp on Amiga
+
+ * make.h: Added HASHI(). This is the same as HASH() but converts
+ it's second parameter to lowercase on Amiga to fold filenames.
+
+ * main.c: (main), variable.c Changed handling of ENV-vars. Make
+ stores now the names of the variables only and reads their contents
+ when they are accessed to reflect that these variables are really
+ global (i.e., they CAN change WHILE make runs !) This handling is
+ made in lookup_variable()
+
+ * Makefile.ami: renamed file.h to filedep.h
+ Updated dependencies
+
+ * read.c: "find_semicolon" is declared as static but never defined.
+ No difference between Makefile and makefile on Amiga; added
+ SMakefile to *default_makefiles[].
+ (read_makefile) SAS/C want's two_colon and pattern_percent be set
+ before use.
+ The current directory on Amiga is "" instead of "."
+ Strange #endif moved.
+
+ * README.Amiga: updated feature list
+
+ * SMakefile: Updated dependencies
+
+ * variable.c: Handling of ENV variable happens inside lookup_variable()
+
+Sat May 11 17:58:32 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * variable.c (try_variable_definition): Count parens in lhs variable
+ refs to avoid seeing =/:=/+= inside a ref.
+
+Thu May 9 13:54:49 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * commands.c (fatal_error_signal) [SIGQUIT]: Make SIGQUIT check
+ conditional.
+
+ * main.c (main): Use unsigned for fread return.
+
+ * read.c (parse_file_seq): Use `int' for char arg to avoid widening
+ conflict issues.
+ * dep.h: Fix prototype.
+
+ * function.c (expand_function) [_AMIGA]: Fix some typos.
+ (patsubst_expand): Make len vars unsigned.
+
+ * GNUmakefile (globfiles): Add AmigaDOS support files.
+ (distfiles): Add $(amigafiles).
+ (amigafiles): New variable.
+
+Thu Nov 7 10:18:16 1995 Aaron Digulla <digulla@fh-konstanz.de>
+
+ * Added Amiga support in commands.c, dir.c, function.c,
+ job.c, main.c, make.h, read.c, remake.c
+ * commands.c: Amiga has neither SIGHUP nor SIGQUIT
+ * dir.c: Amiga has filenames with Upper- and Lowercase,
+ but "FileName" is the same as "filename". Added strieq()
+ which is use to compare filenames. This is like streq()
+ on all other systems. Also there is no such thing as
+ "." under AmigaDOS.
+ * function.c: On Amiga, the environment is not passed as envp,
+ there are no pipes and Amiga can't fork. Use my own function
+ to create a new child.
+ * job.c: default_shell is "" (The system automatically chooses
+ a shell for me). Have to use the same workaround as MSDOS for
+ running batch commands. Added HAVE_SYS_PARAM_H. NOFILE isn't
+ known on Amiga. Cloned code to run children from MSDOS. Own
+ version of sh_chars[] and sh_cmds[]. No dup2() or dup() on Amiga.
+ * main.c: Force stack to 20000 bytes. Read environment from ENV:
+ device. On Amiga, exec_command() does return, so I exit()
+ afterwards.
+ * make.h: Added strieq() to compare filenames.
+ * read.c: Amiga needs special extension to have passwd. Only
+ one include-dir. "Makefile" and "makefile" are the same.
+ Added "SMakefile". Added special code to handle device names (xxx:)
+ and "./" in rules.
+ * remake.c: Only one lib-dir. Amiga link-libs are named "%s.lib"
+ instead of "lib%s.a".
+ * main.c, rule.c, variable.c: Avoid floats at all costs.
+ * vpath.c: Get rid of as many alloca()s as possible.
+
+Thu May 9 13:20:43 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * read.c (read_makefile): Grok `sinclude' as alias for `-include'.
+
+Wed Mar 20 09:52:27 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ * GNUmakefile (vmsfiles): New variable.
+ (distfiles): Include $(vmsfiles).
+
+Tue Mar 19 20:21:34 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ Merged VMS port from Klaus Kaempf <kkaempf@didymus.rmi.de>.
+ * make.h (PARAMS): New macro.
+ * config.h-vms: New file.
+ * makefile.com: New file.
+ * makefile.vms: New file.
+ * readme.vms: New file.
+ * vmsdir.h: New file.
+ * vmsfunctions.c: New file.
+ * vmsify.c: New file.
+ * file.h: Renamed to filedef.h to avoid conflict with VMS system hdr.
+ * ar.c: Added prototypes and changes for VMS.
+ * commands.c: Likewise.
+ * commands.h: Likewise.
+ * default.c: Likewise.
+ * dep.h: Likewise.
+ * dir.c: Likewise.
+ * expand.c: Likewise.
+ * file.c: Likewise.
+ * function.c: Likewise.
+ * implicit.c: Likewise.
+ * job.c: Likewise.
+ * job.h: Likewise.
+ * main.c: Likewise.
+ * make.h: Likewise.
+ * misc.c: Likewise.
+ * read.c: Likewise.
+ * remake.c: Likewise.
+ * remote-stub.c: Likewise.
+ * rule.c: Likewise.
+ * rule.h: Likewise.
+ * variable.c: Likewise.
+ * variable.h: Likewise.
+ * vpath.c: Likewise.
+ * compatMakefile (srcs): Rename file.h to filedef.h.
+
+Sat Aug 19 23:11:00 1995 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * remake.c (check_dep): For a secondary file, try implicit and
+ default rules if appropriate.
+
+Wed Aug 2 04:29:42 1995 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * remake.c (check_dep): If an intermediate file exists,
+ do consider its actual date.
+
+Sun Jul 30 00:49:53 1995 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * file.h (struct file): New field `secondary'.
+ * file.c (snap_deps): Check for .INTERMEDIATE and .SECONDARY.
+ (remove_intermediates): Don't delete .SECONDARY files.
+
+Sat Mar 2 16:26:52 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ * compatMakefile (srcs): Add getopt.h; prepend $(srcdir)/ to getopt*.
+
+Fri Mar 1 12:04:47 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ * Version 3.74.3.
+
+ * remake.c (f_mtime): Move future modtime check before FILE is
+ clobbered by :: loop.
+
+ * dir.c: Use canonical code from autoconf manual for dirent include.
+ [_D_NAMLEN]: Redefine NAMLEN using this.
+ (dir_contents_file_exists_p): Use NAMLEN macro.
+ (read_dirstream) [_DIRENT_HAVE_D_NAMLEN]: Only set d_namlen #if this.
+
+ * compatMakefile (objs): Add missing backslash.
+
+Wed Feb 28 03:56:20 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ * default.c (default_terminal_rules): Remove + prefix from RCS cmds.
+ (default_variables): Put + prefix in $(CHECKOUT,v) value instead.
+
+ * remake.c (f_mtime): Check for future timestamps; give error and mark
+ file as "failed to update".
+
+Fri Jan 12 18:09:36 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c: Don't declare unblock_sigs; job.h already does.
+
+Sat Jan 6 16:24:44 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * acconfig.h (HAVE_SYSCONF_OPEN_MAX): #undef removed.
+
+ * job.c (NGROUPS_MAX): Don't try to define this macro.
+
+Fri Dec 22 18:44:44 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * compatMakefile (GETOPT, GETOPT_SRC, GLOB): Variables removed.
+ (objs, srcs): Include their values here instead of references.
+
+Thu Dec 14 06:21:29 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.74.2.
+
+ * job.c (reap_children): Call unblock_sigs after start_job_command.
+
+Thu Dec 14 07:22:03 1995 Roland McGrath <roland@duality.gnu.ai.mit.edu>
+
+ * dir.c (dir_setup_glob): Don't use lstat; glob never calls it anyway.
+ Avoid & before function names to silence bogus sunos4 compiler.
+
+ * configure.in: Remove check for `sysconf (_SC_OPEN_MAX)'.
+
+Tue Dec 12 00:48:42 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.74.1.
+
+ * dir.c (read_dirstream): Fix braino: fill in the buffer when not
+ reallocating it!
+
+Mon Dec 11 22:26:15 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * misc.c (collapse_continuations): Fix skipping of trailing \s so
+ it can never dereference before the beginning of the array.
+
+ * read.c (find_semicolon): Function removed.
+ (read_makefile): Don't use find_semicolon or remove_comments for
+ rule lines. Use find_char_unquote directly and handle quoted comments
+ properly.
+
+ * default.c: Remove all [M_XENIX] code.
+
+ * dir.c [HAVE_D_NAMLEN]: Define this for __GNU_LIBRARY__ > 1.
+ (D_NAMLEN): Macro removed.
+ (FAKE_DIR_ENTRY): New macro.
+ (dir_contents_file_exists_p): Test HAVE_D_NAMLEN instead of using
+ D_NAMLEN.
+ (read_dirstream): Return a struct dirent * for new glob interface.
+ (init_dir): Function removed.
+ (dir_setup_glob): New function.
+ * main.c (main): Don't call init_dir.
+ * read.c (multi_glob): Call dir_setup_glob on our glob_t and use
+ GLOB_ALTDIRFUNC flag.
+
+ * misc.c (safe_stat): Function removed.
+ * read.c, commands.c, remake.c, vpath.c: Use plain stat instead of
+ safe_stat.
+
+Sat Nov 25 20:35:18 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c [HAVE_UNION_WAIT]: Include sys/wait.h.
+
+ * main.c (log_working_directory): Made global.
+ Print entering msg only once.
+ * make.h (log_working_directory): Declare it.
+ * misc.c (message): Take new arg PREFIX. Print "make: " only if
+ nonzero. Call log_working_directory.
+ * remake.c: Pass new arg in `message' calls.
+ * job.c (start_job_command): Pass new arg to `message'; fix
+ inverted test in that call.
+
+Tue Nov 21 19:01:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c (start_job_command): Use `message' to print the command,
+ and call it with null if the command is silent.
+ * remake.c (touch_file): Use message instead of printf.
+
+Tue Oct 10 14:59:30 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (enter_command_line_file): Barf if NAME is "".
+
+Sat Sep 9 06:33:20 1995 Roland McGrath <roland@whiz-bang.gnu.ai.mit.edu>
+
+ * commands.c (delete_target): Ignore unlink failure if it is ENOENT.
+
+Thu Aug 17 15:08:57 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * configure.in: Don't check for getdtablesize.
+ * job.c (getdtablesize): Remove decls and macros.
+
+Thu Aug 10 19:10:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (define_makeflags): Omit command line variable
+ definitions from MFLAGS value.
+
+ * arscan.c (ar_scan) [AIAMAG]: Check for zero MEMBER_OFFSET,
+ indicating a valid, but empty, archive.
+
+Mon Aug 7 15:40:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * dir.c (file_impossible_p): Correctly reset FILENAME to name
+ within directory before hash search.
+
+ * job.c (child_error): Do nothing if IGNORED under -s.
+
+ * job.c (exec_command): Correctly use ARGV[0] for script name when
+ running shell directly.
+
+Tue Aug 1 14:39:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c (child_execute_job): Close STDIN_FD and STDOUT_FD after
+ dup'ing from them. Don't try to close all excess descriptors;
+ getdtablesize might return a huge value. Any open descriptors in
+ the parent should have FD_CLOEXEC set.
+ (start_job_command): Set FD_CLOEXEC flag on BAD_STDIN descriptor.
+
+Tue Jun 20 03:47:15 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * read.c (read_all_makefiles): Properly append default makefiles
+ to the end of the `read_makefiles' chain.
+
+Fri May 19 16:36:32 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.74 released.
+
+Wed May 10 17:43:34 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.73.3.
+
+Tue May 9 17:15:23 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * compatMakefile ($(infodir)/make.info): Make sure $$dir is set in
+ install-info cmd.
+
+Wed May 3 15:56:06 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * file.c (print_file): Grok update_status of 1 for -q.
+
+Thu Apr 27 12:39:35 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.73.2.
+
+Wed Apr 26 17:15:57 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * file.c (remove_intermediates): Fix inverted test to bail under
+ -n for signal case. Bail under -q or -t.
+ Skip files with update_status==-1.
+
+ * job.c (job_next_command): Skip empty lines.
+ (new_job): Don't test the return of job_next_command.
+ Just let start_waiting_job handle the case of empty commands.
+
+Wed Apr 19 03:25:54 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * function.c [__MSDOS__]: Include <fcntl.h>. From DJ Delorie.
+
+ * Version 3.73.1.
+
+Sat Apr 8 14:53:24 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * remake.c (notice_finished_file): Set FILE->update_status to zero
+ if it's -1.
+
+Wed Apr 5 00:20:24 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.73 released.
+
+Tue Mar 28 13:25:46 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (main): Fixed braino in assert.
+
+ * Version 3.72.13.
+
+Mon Mar 27 05:29:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c: Avoid string in assert expression. Some systems are broken.
+
+Fri Mar 24 00:32:32 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (main): Handle 1 and 2 returns from update_goal_chain
+ makefile run properly.
+
+ * Version 3.72.12.
+
+ * main.c (handle_non_switch_argument): New function, broken out of
+ decode_switches.
+ (decode_switches): Set optind to 0 to reinitialize getopt, not to 1.
+ When getopt_long returns EOF, break the loop and handle remaining args
+ with a simple second loop.
+
+ * remake.c (remake_file): Set update_status to 2 instead of 1 for
+ no rule to make. Mention parent (dependent) in error message.
+ (update_file_1): Handle FILE->update_status == 2 in -d printout.
+ * job.c (start_job_command, reap_children): Set update_status to 2
+ instead of 1 for failed commands.
+
+Tue Mar 21 16:23:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c (search_path): Function removed (was already #if 0'd out).
+ * configure.in: Remove AC_TYPE_GETGROUPS; nothing needs it any more.
+
+Fri Mar 17 15:57:40 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * configure.bat: Write @CPPFLAGS@ translation.
+
+Mon Mar 13 00:45:59 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * read.c (parse_file_seq): Rearranged `l(a b)' -> `l(a) l(b)' loop
+ to not skip the elt immediately preceding `l(...'.
+
+Fri Mar 10 13:56:49 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.11.
+
+ * read.c (find_char_unquote): Make second arg a string of stop
+ chars instead of a single stop char. Stop when any char in the
+ string is hit. All callers changed.
+ (find_semicolon): Pass stop chars "#;" to one find_char_unquote call,
+ instead of using two calls. If the match is not a ; but a #,
+ return zero.
+ * misc.c: Changed find_char_unquote callers here too.
+
+ * Version 3.72.10.
+
+ * read.c (read_makefile, parse_file_seq): Fix typo __MS_DOS__ ->
+ __MSDOS__.
+
+ * GNUmakefile (globfiles): Add glob/configure.bat.
+ (distfiles): Add configh.dos, configure.bat.
+
+Wed Mar 8 13:10:57 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ Fixes for MS-DOS from DJ Delorie.
+ * read.c (read_makefile, parse_file_seq) [__MS_DOS__]: Don't see :
+ as separator in "C:\...".
+ * configh.dos (STDC_HEADERS): Define only if undefined.
+ (HAVE_SYS_PARAM_H): Don't define this.
+ (HAVE_STRERROR): Define this.
+ * job.c (construct_command_argv_internal) [__MSDOS__]: Fix typos.
+
+ * Version 3.72.9.
+
+ * main.c (decode_switches): Reset optind to 1 instead of 0.
+
+Tue Mar 7 17:31:06 1995 Roland McGrath <roland@geech.gnu.ai.mit.edu>
+
+ * main.c (decode_switches): If non-option arg is "-", ignore it.
+
+Mon Mar 6 23:57:38 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.8.
+
+Wed Feb 22 21:26:36 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.7.
+
+Tue Feb 21 22:10:43 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (main): Pass missing arg to tmpnam.
+
+ * configure.in: Check for strsignal.
+ * job.c (child_error): Use strsignal.
+ * main.c (main): Don't call signame_init #ifdef HAVE_STRSIGNAL.
+
+ * misc.c (strerror): Fix swapped args in sprintf.
+
+Mon Feb 13 11:50:08 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * configure.in (CFLAGS, LDFLAGS): Don't set these variables.
+
+Fri Feb 10 18:44:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (print_version): Add 95 to copyright years.
+
+ * Version 3.72.6.
+
+ * job.c (start_job_command): Remember to call notice_finished_file
+ under -n when not recursing. To do this, consolidate that code
+ under the empty command case and goto there for the -n case.
+
+Tue Feb 7 13:36:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * make.h [! STDC_HEADERS]: Don't declare qsort. Sun headers
+ declare it int.
+
+Mon Feb 6 17:37:01 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * read.c (read_makefile): For bogus line starting with tab, ignore
+ it if blank after removing comments.
+
+ * main.c: Cast results of `alloca' to `char *'.
+ * expand.c: Likewise.
+
+Sun Feb 5 18:35:46 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.5.
+
+ * configure.in: Check for mktemp.
+ * main.c (main) [! HAVE_MKTEMP]: Use tmpnam instead of mktemp.
+
+ * configure.in (make_cv_sysconf_open_max): New check for `sysconf
+ (_SC_OPEN_MAX)'.
+ * acconfig.h: Added #undef HAVE_SYSCONF_OPEN_MAX.
+ * job.c [HAVE_SYSCONF_OPEN_MAX] (getdtablesize): Define as macro
+ using sysconf.
+
+Fri Jan 27 04:42:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * remake.c (update_file_1): When !MUST_MAKE, don't set
+ FILE->update_status to zero before calling notice_finished_file.
+ (notice_finished_file): Touch only when FILE->update_status is zero.
+ (remake_file): Set FILE->update_status to zero after not calling
+ execute_file_command and deciding to touch instead.
+
+Thu Jan 26 01:29:32 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (debug_signal_handler): New function; toggles debug_flag.
+ (main): Handle SIGUSR1 with that.
+
+Mon Jan 16 15:46:56 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * compatMakefile (realclean): Remove Info files.
+
+Sun Jan 15 08:23:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.4.
+
+ * job.c (start_job_command): Save and restore environ around vfork
+ call.
+ (search_path): Function #if 0'd out.
+ (exec_command): Use execvp instead of search_path.
+
+ * expand.c (variable_expand): Rewrote computed variable name and
+ substitution reference handling to be simpler. First expand the
+ entire text between the parens if it contains any $s, then examine
+ the result of that for subtitution references and do no further
+ expansion while parsing them.
+
+ * job.c (construct_command_argv_internal): Handle " quoting too,
+ when no backslash, $ or ` characters appear inside the quotes.
+
+ * configure.in (union wait check): If WEXITSTATUS and WTERMSIG are
+ defined, just use int.
+
+Tue Jan 10 06:27:27 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * default.c (default_variables) [__hpux]: Remove special
+ definition of ARFLAGS. Existence of the `f' flag is not
+ consistent across HPUX versions; and one might be using GNU ar
+ anyway.
+
+ * compatMakefile (clean): Don't remove Info files.
+
+ * compatMakefile (check): Remove gratuitous target declaration.
+
+Sat Jan 7 11:38:23 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * compatMakefile (ETAGS, CTAGS): Don't use -t.
+
+ * arscan.c (ar_name_equal) [cray]: Subtract 1 like [__hpux].
+
+ * main.c (decode_switches): For --help, print usage to stdout.
+
+Mon Dec 5 12:42:18 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.3.
+
+ * remake.c (update_file_1): Do set_command_state (FILE,
+ cs_not_started) only if old state was deps_running.
+
+Mon Nov 28 14:24:03 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c (start_waiting_job): Use set_command_state.
+
+ * build.template (CPPFLAGS): New variable.
+ (prefix, exec_prefix): Set from @...@.
+ (compilation loop): Pass $CPPFLAGS to compiler.
+
+ * GNUmakefile (build.sh.in): Make it executable.
+
+ * GNUmakefile (globfiles): Add configure.in, configure.
+
+ * Version 3.72.2.
+
+ * configure.in (AC_OUTPUT): Don't write glob/Makefile.
+
+ * configure.in (AC_CHECK_SYMBOL): Use AC_DEFINE_UNQUOTED.
+
+ * configure.in: Don't check for ranlib.
+
+Tue Nov 22 22:42:40 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * remake.c (notice_finished_file): Only mark also_make's as
+ updated if really ran cmds.
+
+Tue Nov 15 06:32:46 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * configure.in: Put dnls before random whitespace.
+
+Sun Nov 13 05:02:25 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * compatMakefile (CPPFLAGS): New variable, set from @CPPFLAGS@.
+ (RANLIB): Variable removed.
+ (prefix, exec_prefix): Set these from @...@.
+ (.c.o): Use $(CPPFLAGS).
+ (glob/libglob.a): Don't pass down variables to sub-make.
+ glob/Makefile should be configured properly by configure.
+ (distclean): Remove config.log and config.cache (autoconf stuff).
+
+Mon Nov 7 13:58:06 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * acconfig.h: Add #undef HAVE_UNION_WAIT.
+ * configure.in: Converted to Autoconf v2.
+ * dir.c: Test HAVE_DIRENT_H, HAVE_SYS_DIR_H, HAVE_NDIR_H instead
+ of DIRENT, SYSDIR, NDIR.
+ * build.sh.in (prefix, exec_prefix): Set these from @...@.
+ (CPPFLAGS): New variable, set from @CPPFLAGS@.
+ (compiling loop): Pass $CPPFLAGS before $CFLAGS.
+ * install.sh: File renamed to install-sh.
+
+ * main.c (define_makeflags): When no flags, set WORDS to zero.
+
+Sun Nov 6 18:34:01 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.1.
+
+ * main.c (define_makeflags): Terminate properly when FLAGSTRING is
+ empty.
+
+Fri Nov 4 16:02:51 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.72.
+
+Tue Nov 1 01:18:10 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.71.5.
+
+ * job.c (start_job_command): When ARGV is nil, only set
+ update_state and call notice_finished_file if job_next_command
+ returns zero.
+
+ * job.c (start_job_command): Call notice_finished_file for empty
+ command line.
+
+Thu Oct 27 02:02:45 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * file.c (snap_deps): Set COMMANDS_SILENT for .SILENT, not
+ COMMANDS_NOERROR.
+
+Wed Oct 26 02:14:10 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.71.4.
+
+Tue Oct 25 22:49:24 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * file.c (snap_deps): Set command_flags bits in all :: entries.
+
+Mon Oct 24 18:47:50 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * make.h (posix_pedantic): Declare it.
+ * main.c (main): Move checks .IGNORE, .SILENT, .POSIX to
+ snap_deps.
+ * file.c (snap_deps): Check .IGNORE, .SILENT, .POSIX here instead
+ of in main. If .IGNORE has deps, OR COMMANDS_NOERROR into their
+ command_flags and don't set -i. Likewise .SILENT.
+ * job.c (start_job_command): In FLAGS initialization, OR in
+ CHILD->file->command_flags.
+ * file.h (struct file): New member `command_flags'.
+
+Sun Oct 16 01:01:51 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (switches): Bump flag values for --no-print-directory and
+ --warn-undefined-variables, so neither is 1 (which indicates a
+ nonoption argument).
+
+Sat Oct 15 23:39:48 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (main): Add missing code in .IGNORE test.
+
+Mon Oct 10 04:09:03 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * variable.c (define_automatic_variables): Define +D and +F.
+
+Sat Oct 1 04:07:48 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (main): Define hidden automatic variable with command
+ vars, and MAKEOVERRIDES to a reference to that.
+ (define_makeflags): If posix_pedantic, write a reference to that
+ instead.
+
+Thu Sep 29 00:14:26 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * main.c (posix_pedantic): New variable.
+ (main): Set posix_pedantic if .POSIX is a target.
+ Fix .IGNORE and .SILENT checks to require is_target.
+
+ * commands.c (set_file_variables): Define new automatic variable
+ $+, like $^ but before calling uniquize_deps.
+
+ * job.c (reap_children): Call delete_child_targets for non-signal
+ error if .DELETE_ON_ERROR is a target.
+
+Tue Sep 27 01:57:14 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.71.3.
+
+Mon Sep 26 18:16:55 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * job.c (reap_children): Don't change C->file->command_state when
+ dying. Test it only after calling start_job_command for a new
+ command line. When no more cmds, just set C->file->update_status.
+ (start_job_command): When the last line is empty or under -n, set
+ C->file->update_status.
+ (start_waiting_job): Grok cs_not_started after start_job_command
+ as success.
+ (new_job): Set C->file->update_status when there are no cmds.
+ (job_next_command): When out of lines, don't set
+ CHILD->file->update_status or CHILD->file->command_state.
+
+ * main.c (quote_as_word): Renamed from shell_quote. Take new arg;
+ if nonzero, also double $s.
+ (main): Define MAKEOVERRIDES from command_variables here.
+ (define_makeflags): Don't use command_variables here; instead write a
+ reference $(MAKEOVERRIDES) in MAKEFLAGS. Make vars recursive.
+
+ * dir.c [__MSDOS__]: Fixed typo.
+
+ * vpath.c (selective_vpath_search): Reset EXISTS when stat fails.
+
+Sat Sep 10 03:01:35 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * remake.c: Include <assert.h> and use assert instead of printfs
+ and abort.
+
+ * main.c (decode_switches): Loop until optind hits ARGC, not just
+ until getopt_long returns EOF. Initialize C to zero before loop;
+ in loop if C is EOF, set optarg from ARGV[optind++], else call
+ getopt_long.
+ (decode_env_switches): Use variable_expand instead of
+ allocated_variable_expand. Allocate a fresh buffer to copy split
+ words into; scan characters by hand to break words and
+ debackslashify.
+ (shell_quote): New function.
+ (define_makeflags): Allocate doubled space for switch args, and command
+ variable names and values; use shell_quote to quote those things.
+
+Fri Sep 9 01:37:47 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * Version 3.71.2.
+
+ * acconfig.h: Add HAVE_SYS_SIGLIST and HAVE__SYS_SIGLIST.
+
+ * main.c (decode_switches): The non-option return from getopt is
+ 1, not 0.
+ (command_variables): New type and variable.
+ (decode_switches, decode_env_switches): After making a variable
+ definition, record the struct variable pointer in the
+ command_variables chain.
+ (define_makeflags): If ALL, write variable definitions for
+ command_variables.
+
+ * main.c (other_args): Variable removed.
+ (goals, lastgoal): New static variables (moved from auto in main).
+ (main): Don't process OTHER_ARGS at all.
+ Don't set variable MAKEOVERRIDES at all; define MAKE to just
+ $(MAKE_COMMAND).
+ (init_switches): Prepend a - {return in order} instead of a +
+ {require order}.
+ (decode_switches): Don't set OTHER_ARGS at all.
+ Grok '\0' return from getopt_long as non-option argument; try
+ variable definition and (if !ENV) enter goal targets here.
+ (decode_env_switches): Use allocated_variable_expand to store value.
+ Use find_next_token to simplify word-splitting loop. Don't
+ prepend a dash to uninterpreted value. Instead, if split into
+ only one word, try variable definition and failing that prepend a
+ dash to the word and pass it to decode_switches as a single arg.
+
+Wed Sep 7 03:02:46 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * remake.c (notice_finished_file): Only recheck modtimes if
+ FILE->command_state was cs_running on entry (meaning the commands
+ actually just ran).
+ (update_file_1): Whenever we set FILE->update_status, call
+ notice_finished_file instead of just set_command_state.
+ * job.c (start_job_command): Whenever we set
+ CHILD->file->update_status, call notice_finished_file instead of
+ just set_command_state.
+
+Tue Sep 6 19:13:54 1994 Roland McGrath <roland@geech.gnu.ai.mit.edu>
+
+ * default.c: Add missing ".
+
+ * job.c: Changed all assignments of command_state members to calls
+ to set_command_state.
+ * remake.c: Likewise.
+ * file.c (set_command_state): New function.
+ * file.h: Declare set_command_state.
+
+ * main.c (init_switches): Put a + first in options.
+
+Mon Jul 25 18:07:46 1994 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ Merge MSDOS/GO32 port from DJ Delorie <dj@ctron.com>.
+ * vpath.c: Changed all uses of ':' to PATH_SEPARATOR_CHAR.
+ * main.c (directory_before_chdir): New variable, moved out of main
+ (was local).
+ (main) [__MSDOS__]: Look for \ or : to delimit last component of
+ PROGRAM. Don't frob ARGV[0] before setting MAKE_COMMAND variable.
+ (die): Change back to `directory_before_chdir' before dying.
+ * make.h (PATH_SEPARATOR_CHAR): New macro; differing defns for
+ [__MSDOS__] and not.
+ * job.c [__MSDOS__]: Include <process.h>.
+ [__MSDOS__] (dos_pid, dos_status, dos_bname, dos_bename,
+ dos_batch_file): New variables.
+ (reap_children) [__MSDOS__]: Don't call wait; just examine those vars.
+ (unblock_sigs) [__MSDOS__]: Do nothing.
+ (start_job_command) [__MSDOS__]: Use spawnvpe instead of vfork & exec.
+ (load_too_high) [__MSDOS__]: Always return true.
+ (search_path) [__MSDOS__]: Check for : or / in FILE to punt.
+ Use PATH_SEPARATOR_CHAR instead of ':'.
+ (construct_command_argv_internal) [__MSDOS__]: Wholly different
+ values for sh_chars and sh_cmds. Wholly new code to handle shell
+ scripts.
+ * function.c (expand_function: `shell') [__MSDOS__]: Wholly new
+ implementation.
+ * dir.c [__MSDOS__] (dosify): New function.
+ (dir_contents_file_exists_p) [__MSDOS__]: Call it on FILENAME and
+ process the result instead of FILENAME itself.
+ (file_impossible_p) [__MSDOS__]: Likewise.
+ * default.c [__MSDOS__]: Define GCC_IS_NATIVE.
+ (default_suffix_rules) [__MSDOS__]: Use `y_tab.c' instead of `y.tab.c'.
+ (default_variables) [GCC_IS_NATIVE]: Set CC and CXX to `gcc', YACC to
+ `bison -y', and LEX to `flex'.
+ * configure.bat, configh.dos: New files.
+ * commands.c (fatal_error_signal) [__MSDOS__]: Just remove
+ intermediates and exit.
+
+ * commands.c (set_file_variables): Add parens in length
+ computation in .SUFFIXES dep loop to quiet compiler warning. From
+ Jim Meyering.
+
+ * read.c (read_makefile): Free FILENAME if we allocated it. From
+ Jim Meyering.
+
+Mon Jul 4 17:47:08 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * misc.c (safe_stat): New function, EINTR-safe wrapper around stat.
+ * vpath.c (selective_vpath_search): Use safe_stat in place of stat.
+ * read.c (construct_include_path): Use safe_stat in place of stat.
+ * job.c (search_path): Use safe_stat in place of stat.
+ * dir.c (find_directory): Use safe_stat in place of stat.
+ * commands.c (delete_target): Use safe_stat in place of stat.
+ * arscan.c (ar_member_touch) [EINTR]: Do EINTR looping around fstat.
+ * remake.c (name_mtime): Use safe_stat in place of stat.
+ (touch_file) [EINTR]: Do EINTR looping around fstat.
+
+Fri Jun 24 05:40:24 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Check for a shell command first, and
+ then strip leading tabs before further checking if it's not a
+ shell command line.
+
+ * make.h [__arm]: Undefine POSIX.
+ [!__GNU_LIBRARY__ && !POSIX && !_POSIX_VERSION]: Don't declare system
+ functions that return int.
+
+ * job.c (construct_command_argv_internal): After swallowing a
+ backslash-newline combination, if INSTRING is set goto string_char
+ (new label) for normal INSTRING handling code.
+
+Sat Jun 4 01:11:20 1994 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * configure.in: Don't check for sys_siglist and _sys_siglist with
+ AC_HAVE_FUNCS. Instead use two AC_COMPILE_CHECKs.
+
+Mon May 23 18:20:38 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.71.1 released.
+
+ * make.h [!__GNU_LIBRARY__ && !POSIX]: Also test #ifndef
+ _POSIX_VERSION for these declarations.
+
+ * misc.c [GETLOADAVG_PRIVILEGED] [POSIX]: Remove bogus #ifndefs
+ around #undefs of HAVE_SETREUID and HAVE_SETREGID.
+
+Sat May 21 16:26:38 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.71 released.
+
+ * misc.c [GETLOADAVG_PRIVILEGED] [POSIX]: Don't test [HAVE_SETUID]
+ and [HAVE_SETGID]. Every system has those, and configure doesn't
+ check for them.
+
+ * make.h [_POSIX_VERSION]: Don't #define POSIX #ifdef ultrix.
+
+ * compatMakefile (loadavg): Depend on and use loadavg.c instead of
+ getloadavg.c.
+ (loadavg.c): Link or copy it from getloadavg.c.
+ (distclean): Remove loadavg.c.
+
+Mon May 16 22:59:04 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.70.4.
+
+ * misc.c [GETLOADAVG_PRIVILEGED] [! POSIX]: Undefine HAVE_SETEUID
+ and HAVE_SETEGID.
+
+ * default.c (default_terminal_rules): In SCCS rules, put
+ $(SCCS_OUTPUT_OPTION) before $<. On some systems -G is grokked
+ only before the file name.
+ * configure.in (SCCS_GET_MINUS_G check): Put -G flag before file name.
+
+Tue May 10 16:27:38 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Swallow
+ backslash-newline combinations inside '' strings too.
+
+Thu May 5 04:15:10 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (do_define): Call collapse_continuations on each line
+ before all else.
+
+Mon Apr 25 19:32:02 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Notice newline inside
+ '' string when RESTP is non-null.
+
+Fri Apr 22 17:33:30 1994 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.70.3.
+
+ * remake.c (update_goal_chain): Reset FILE to G->file after the
+ double-colon loop so it is never null for following code.
+
+ * read.c (read_makefile): Fix `override define' parsing to skip
+ whitespace after `define' properly.
+
+ * compatMakefile (srcdir): Define as @srcdir@; don't reference
+ $(VPATH).
+ (glob/Makefile): New target.
+
+Thu Apr 21 16:16:55 1994 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.70.2.
+
+ * misc.c (remove_comments): Use find_char_unquote.
+ * make.h (find_char_unquote): Declare it.
+ * read.c (find_char_unquote): New function, generalized from
+ find_percent.
+ (find_percent, find_semicolon, parse_file_seq): Use that.
+
+Wed Apr 20 18:42:39 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * implicit.c (pattern_search): Always allocate new storage for
+ FILE->stem. It is not safe to store STEM's address because it
+ might be auto storage.
+
+ * configure.in: Check for seteuid and setegid.
+ * misc.c [HAVE_SETEUID]: Declare seteuid.
+ [HAVE_SETEGID]: Declare setegid.
+ (make_access, user_access) [HAVE_SETEUID]: Use seteuid.
+ [HAVE_SETEGID]: Use setegid.
+
+ * remake.c (update_goal_chain): Set STATUS to FILE->update_status,
+ to preserve whether it's 2 for error or 1 for -q trigger. When
+ STATUS gets nonzero and -q is set, always stop immediately.
+ * main.c (main, decode_switches): Die with 2 for errors.
+ (main): Accept 2 return from update_goal_chain and die with that.
+ * misc.c (fatal, makefile_fatal): Die with 2; 1 is reserved for -q
+ answer.
+ * job.c (reap_children): Die with 2 for error.
+ (start_job_command): Set update_status to 2 for error. Set it to
+ 1 when we would run a command and question_flag is set.
+
+ * read.c (read_makefile): Don't mark makefiles as precious. Just
+ like other targets, they can be left inconsistent and in need of
+ remaking by aborted commands.
+
+ * read.c (read_makefile): Write no error msg for -include file.
+
+Tue Apr 5 05:22:19 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * commands.c (fatal_error_signal): Don't unblock signals.
+
+ * file.h (struct file): Change member `double_colon' from flag to
+ `struct file *'.
+ * read.c (record_files): Set double_colon pointer instead of flag.
+ * main.c (main): When disqualifying makefiles for updating, use
+ double_colon pointer to find all entries for a file.
+ * file.c (enter_file): If there is already a double-colon entry
+ for the file, set NEW->double_colon to that pointer.
+ (file_hash_enter): Use FILE->double_colon to find all entries to
+ set name.
+ * remake.c (update_goal_chain): Do inner loop on double-colon entries.
+ (update_file): Use FILE->double_colon pointer to find all entries.
+ (f_mtime): Likewise.
+ (notice_finished_file): Propagate mtime change to all entries.
+
+ * variable.c (try_variable_definition): Return after abort.
+
+Fri Apr 1 18:44:15 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Remove unused variable.
+ (parse_file_seq): When removing an elt that is just `)', properly
+ fix up the previous elt's next pointer.
+
+Mon Mar 28 18:31:49 1994 Roland McGrath (roland@mole.gnu.ai.mit.edu)
+
+ * configure.in: Do AC_SET_MAKE.
+ * GNUmakefile (Makefile.in): Edit MAKE assignment into @SET_MAKE@.
+
+Fri Mar 4 00:02:32 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * function.c (subst_expand): If BY_WORD or SUFFIX_ONLY is set and
+ the search string is the empty string, find a match at the end of
+ each word (using end_of_token in place of sindex).
+
+ * misc.c (end_of_token): Don't treat backslashes specially; you
+ can no longer escape blanks with backslashes in export, unexport,
+ and vpath. This was never documented anyway.
+
+Thu Mar 3 23:53:46 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Variable name for `define' is not just
+ first token; use whole rest of line and strip trailing blanks.
+
+Wed Feb 16 16:03:45 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.70.1.
+
+ * read.c (read_makefile): Add -d msg stating args.
+
+ * read.c (read_makefile): Use isspace to skip over leading
+ whitespace, and explicitly avoid skipping over tabs. Don't want
+ to skip just spaces though; formfeeds et al should be skipped.
+
+ * default.c (default_variables) [__hpux]: Add f in ARFLAGS.
+
+ * arscan.c (ar_name_equal) [__hpux]: Subtract 2 instead of 1 from
+ sizeof ar_name for max length to compare.
+
+ * misc.c [GETLOADAVG_PRIVILEGED] [POSIX]: Undefine HAVE_SETREUID
+ #ifdef HAVE_SETUID; likewise HAVE_SETREGID and HAVE_SETGID.
+
+ * main.c (main): Call user_access after setting `program', in case
+ it needs to use it in an error message.
+
+ * read.c (read_makefile): Ignore an empty line starting with a tab.
+
+Thu Feb 10 21:45:31 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in (AC_SYS_SIGLIST_DECLARED): Use this instead of
+ AC_COMPILE_CHECK that is now its contents.
+
+Fri Feb 4 16:28:54 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h: #undef strerror after #include <string.h>.
+ [! ANSI_STRING]: Declare strerror.
+
+Thu Feb 3 02:21:22 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * misc.c (strerror): #undef any macro before function definition.
+
+Mon Jan 31 19:07:23 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (try_variable_definition): Calculate BEG before loop
+ to strip blanks by decrementing END. Don't decr END to before BEG.
+
+ * read.c (read_makefile): Skip over leading space characters, but
+ not tabs, after removing continuations and comments (it used to
+ use isspace).
+
+Tue Jan 25 16:45:05 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (define_automatic_variables): In $(@D) et al, use
+ patsubst to remove trailing slash.
+
+ * commands.c (delete_target): New function, broken out of
+ delete_child_targets. Check for archive members and give special msg.
+ (delete_child_targets): Use delete_target.
+
+Mon Jan 17 17:03:22 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (default_suffix_rules): Use $(TEXI2DVI_FLAGS) in
+ texi2dvi rules. Use $(MAKEINFO_FLAGS) in makeinfo rules.
+
+Tue Jan 11 19:29:55 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * GNUmakefile (tarfiles): Omit make-doc.
+ (make-$(version).tar): Include make.info*.
+
+Fri Jan 7 16:27:00 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (configure, config.h.in): Comment out rules.
+
+Thu Jan 6 18:08:08 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (binprefix, manprefix): New variables.
+ (instname): Variable removed.
+ (install): Use $({bin,man}prefix)make in place of $(instname).
+ File targets likewised renamed.
+
+Mon Jan 3 17:50:25 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.70 released.
+
+Thu Dec 23 14:46:54 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.69.3.
+
+ * read.c (parse_file_seq): Inside multi-word archive ref
+ translation loop, check NEW1==0 at end and break out of the loop.
+
+ * GNUmakefile (make-$(version).tar): Distribute install.sh.
+ * install.sh: New file.
+
+ * configure.in (SCCS_GET_MINUS_G check): Put redirection for admin
+ cmds outside subshell parens, to avoid "command not found" msgs
+ from the shell.
+
+Wed Dec 22 17:00:43 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in (SCCS_GET_MINUS_G check): Put -G flag last in get cmd.
+ Redirect output & error from get to /dev/null.
+ Fix reversed sense of test.
+
+Fri Dec 17 15:31:36 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in (SCCS_GET_MINUS_G check): Use parens instead of
+ braces inside if condition command; some shells lose.
+
+Thu Dec 16 15:10:23 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.69.2.
+
+ * arscan.c [M_UNIX]: Move #undef M_XENIX for PORTAR stuff.
+ (PORTAR) [M_XENIX]: Define to 0 instead of 1.
+
+ * main.c (define_makeflags): Only export MAKEFLAGS if !ALL.
+
+Wed Dec 15 17:47:48 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (main): Cast result of pointer arith to unsigned int
+ before passing to define_variable for envars. Matters when
+ sizeof(unsigned)!=sizeof(ptrdiff_t).
+
+Tue Dec 14 14:21:16 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in: Add new check for SCCS_GET_MINUS_G.
+ * config.h.in: Add #undef SCCS_GET_MINUS_G.
+ * default.c (default_terminal_rules): Use `$(SCCS_OUTPUT_OPTION)' in
+ place of `-G $@' in SCCS commands.
+ (default_variables) [SCCS_GET_MINUS_G]: Define SCCS_OUTPUT_OPTION
+ to "-G$@".
+
+ * configure.in (AC_OUTPUT): Put touch stamp-config in second arg
+ (so it goes in config.status), rather than afterward.
+
+ * ar.c (ar_member_date): Don't call enter_file on the archive file
+ if it doesn't exist (by file_exists_p).
+
+ * compatMakefile ($(infodir)/make.info): Replace `$$d/foo.info'
+ with `$$dir/make.info' in install-info invocation (oops).
+
+ * vpath.c (construct_vpath_list): Only set LASTPATH set PATH when
+ we do not unlink and free PATH.
+
+ * file.c (print_file_data_base): Fix inverted calculation for
+ average files per hash bucket.
+
+ * read.c (readline): When we see a NUL, give only a warning and
+ synthesize a newline to terminate the building line (used to
+ fatal). Move fgets call into the loop condition, and after the
+ loop test ferror (used to test !feof in the loop).
+
+Fri Dec 3 16:40:31 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in: Check for strerror in AC_HAVE_FUNCS.
+
+Thu Dec 2 15:37:50 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ Differentiate different flavors of missing makefile error msgs,
+ removing gratuitous `fopen: ' and giving caller for included makefiles.
+ * misc.c [! HAVE_STRERROR]: Define our own strerror here.
+ (perror_with_name, pfatal_with_name): Use strerror instead of
+ replicating its functionality.
+ * read.c (read_makefile): Return int instead of void.
+ (read_all_makefiles, read_makefile): Change callers to notice zero
+ return and give error msg.
+
+Thu Nov 11 11:47:36 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.69.1.
+
+ * default.c: Put `-G $@' before $< in SCCS cmds.
+
+Wed Nov 10 06:06:14 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): After trying a variable defn, notice if
+ the line begins with a tab, and diagnose an error.
+
+Sun Nov 7 08:07:37 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.69.
+
+Wed Nov 3 06:54:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.10.
+
+ * implicit.c (try_implicit_rule): Look for a normal rule before an
+ archive rule.
+
+Fri Oct 29 16:45:28 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * function.c (expand_function: `sort'): Double NWORDS when it
+ overflows, instead of adding five.
+
+ * compatMakefile (clean): Remove loadavg.
+
+Wed Oct 27 17:58:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.9.
+
+ * file.h (NEW_MTIME): Define new macro.
+ * main.c (main): Set time of NEW_FILES to NEW_MTIME, not to
+ current time returned from system. Removed variable NOW.
+ * remake.c (notice_finished_file): Use NEW_MTIME in place of
+ current time here too.
+
+Tue Oct 26 19:45:35 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.8.
+
+ * remake.c (update_file_1): Don't clear MUST_MAKE when FILE has no
+ cmds and !DEPS_CHANGED unless also !NOEXIST.
+
+Mon Oct 25 15:25:21 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (parse_file_seq): When converting multi-word archive
+ refs, ignore a word beginning with a '('.
+
+Fri Oct 22 02:53:38 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in: Check for sys/timeb.h.
+ * make.h [HAVE_SYS_TIMEB_H]: Test this before including it.
+
+Thu Oct 21 16:48:17 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.7.
+
+ * rule.c (convert_suffix_rule): New local TARGPERCENT. Set it to
+ TARGNAME+1 for "(%.o)", to TARGNAME for "%.?". Use it in place of
+ TARGNAME to initialize PERCENTS[0].
+
+Mon Oct 18 06:49:35 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in: Use AC_HAVE_HEADERS(unistd.h) instead of AC_UNISTD_H.
+ Remove AC_USG; it is no longer used.
+
+ * file.c (print_file): New function, broken out of
+ print_file_data_base.
+ (print_file_data_base): Call it.
+ * rule.c (print_rule): New function, broken out of
+ print_rule_data_base.
+ (print_rule_data_base): Call it.
+
+Thu Oct 14 14:54:03 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (install_default_suffix_rules): New function, broken
+ out of install_default_implicit_rules.
+ (install_default_implicit_rules): Move suffix rule code there.
+ * make.h: Declare install_default_suffix_rules.
+ * main.c (main): Call install_default_suffix_rules before reading
+ makefiles. Move convert_to_pattern call before
+ install_default_implicit_rules.
+
+ * job.h (struct child): Make `pid' member type `pid_t' instead of
+ `int'.
+
+ * compatMakefile (RANLIB): New variable, set by configure.
+ (glob/libglob.a): Pass RANLIB value down to submake.
+
+ Fixes for SCO 3.2 "devsys 4.2" from pss@tfn.com (Peter Salvitti).
+ * make.h: Include <sys/timeb.h> before <time.h> for SCO lossage.
+ * job.c [! getdtablesize] [! HAVE_GETDTABLESIZE]: If NOFILE is not
+ defined but NOFILES_MAX is, define it to be that.
+
+Mon Oct 11 19:47:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * GNUmakefile (make-$(version).tar): Depend on acconfig.h, so it
+ is distributed.
+
+Sun Oct 3 15:15:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (default_terminal_rules): Add `-G $@' to SCCS get cmds.
+
+Tue Sep 28 14:18:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Add ^ to SH_CHARS; it
+ is another symbol for | in some shells.
+ * main.c (main): Add it to CMD_DEFS quoting list as well.
+
+Mon Sep 20 18:05:24 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Remove '=' from
+ SH_CHARS. Only punt on '=' if it is unquoted in a word before the
+ first word without an unquoted '='.
+
+ * main.c (define_makeflags): Set v_export for MAKEFLAGS.
+
+Fri Sep 17 00:37:18 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (update_file_1): Use .DEFAULT cmds for phony targets.
+
+ * make.h [_AIX && _POSIX_SOURCE]: Define POSIX.
+
+ * commands.c (delete_child_targets): Don't delete phony files.
+
+ * job.c (start_job_command): Set COMMANDS_RECURSE in FLAGS if we
+ see a `+' at the beginning of the command line.
+
+Thu Sep 9 17:57:14 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.6.
+
+Wed Sep 8 20:14:21 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (define_makeflags): Define MAKEFLAGS with o_file, not o_env.
+
+Mon Aug 30 12:31:58 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * expand.c (variable_expand): Fatal on an unterminated reference.
+
+Thu Aug 19 16:27:53 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.5.
+
+ * variable.c (define_automatic_variables): Define new o_default
+ variable `MAKE_VERSION' from version_string and remote_description.
+
+ * make.h (version_string, remote_description): Declare these here.
+ * main.c: Don't declare version_string.
+ (print_version): Don't declare remote_description.
+
+Wed Aug 18 15:01:24 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Free space pointed to by CONDITIONALS
+ before restoring the old pointer.
+
+Mon Aug 16 17:33:36 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile ($(objs)): Depend on config.h.
+
+ * GNUmakefile (build.sh.in): Depend on compatMakefile.
+
+ * configure.in: Touch stamp-config after AC_OUTPUT.
+
+Fri Aug 13 16:04:22 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.4.
+
+Thu Aug 12 17:18:57 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h: Include <config.h> instead of "config.h".
+
+Wed Aug 11 02:35:25 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (main): Make all variables interned from ENVP be v_export.
+ * variable.c (try_variable_definition): In v_default case, don't
+ check for an o_file variable that `getenv' finds.
+
+ * job.c (reap_children): New local variable ANY_LOCAL; set it
+ while setting ANY_REMOTE. If !ANY_LOCAL, don't wait for local kids.
+
+ * main.c (main): Don't call decode_env_switches on MFLAGS. DOC THIS.
+
+ * function.c (expand_function): #if 0 out freeing of ENVP since it
+ is environ.
+
+Mon Aug 9 17:37:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.3.
+
+ * remote-stub.c (remote_status): Set errno to ECHILD before return.
+ * job.c (reap_children): Scan the chain for remote children and
+ never call remote_status if there are none.
+
+ * function.c (expand_function: `shell'): #if 0 out calling
+ target_environment; just set ENVP to environ instead.
+
+ * job.c (reap_children): Check for negative return from
+ remote_status and fatal for it.
+ When blocking local child wait returns 0, then try a blocking call
+ to remote_status.
+
+Tue Aug 3 00:19:00 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (clean): Delete make.info* and make.dvi here.
+ (distclean): Not here.
+
+ * dep.h (RM_*): Use #defines instead of enum to avoid lossage from
+ compilers that don't like enum values used as ints.
+
+Mon Aug 2 16:46:34 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (loadavg): Add $(LOADLIBES).
+
+Sun Aug 1 16:01:15 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.2.
+
+ * compatMakefile (loadavg, check-loadavg): New targets.
+ (check): Depend on check-loadavg.
+
+ * compatMakefile (glob/libglob.a): Depend on config.h.
+
+ * misc.c (log_access): Write to stderr instead of stdout.
+
+Fri Jul 30 00:07:02 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.1.
+
+Thu Jul 29 23:26:40 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in (SYS_SIGLIST_DECLARED): In test program include
+ <unistd.h> #ifdef HAVE_UNISTD_H.
+
+ * compatMakefile (.PHONY): Put after `all' et al.
+
+ * configure.in: Add AC_IRIX_SUN.
+
+Wed Jul 28 17:41:12 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.68.
+
+Mon Jul 26 14:36:49 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.8.
+
+Sun Jul 25 22:09:08 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.7.
+
+ * compatMakefile ($(infodir)/make.info): Don't use $(instname).
+ Run install-info script if present.
+
+Fri Jul 23 16:03:50 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h [STAT_MACROS_BROKEN]: Test this instead of [uts].
+
+ * configure.in: Add AC_STAT_MACROS_BROKEN.
+
+Wed Jul 14 18:48:11 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.6.
+
+ * read.c (read_makefile): Recognize directive `-include', like
+ `include' but sets RM_DONTCARE flag.
+
+ * variable.c (target_environment): If FILE is nil, use
+ current_variable_set_list in place of FILE->variables.
+ * function.c (expand_function: `shell'): Get an environment for
+ the child from target_environment instead of using environ.
+
+ * dep.h: Declare read_all_makefiles here.
+ (RM_*): Define new enum constants.
+ * read.c (read_makefile): Second arg is FLAGS instead of TYPE.
+ Treat it as a bit mask containing RM_*.
+ (read_all_makefiles): For default makefiles, set D->changed to
+ RM_DONTCARE instead of 1.
+ * main.c: Don't declare read_all_makefiles here.
+ (main): Check `changed' member of read_makefiles elts for RM_*
+ flags instead of specific integer values.
+
+Mon Jul 12 22:42:17 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h [sequent && i386]: #undef POSIX. From trost@cse.ogi.edu.
+
+Thu Jul 8 19:51:23 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * vpath.c (construct_vpath_list): If ELEM is zero 0, free PATTERN
+ as well as VPATH.
+ (build_vpath_lists): Empty `vpaths' around construct_vpath_list
+ call for $(VPATH). Expand $(strip $(VPATH)), not just $(VPATH).
+
+ * rule.c (convert_suffix_rule): Use alloca instead of xmalloc for
+ PERCENTS, whose storage is not consumed by create_pattern_rule.
+
+ * make.h [__mips && _SYSTYPE_SVR3]: #undef POSIX.
+
+Wed Jun 30 18:11:40 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.5.
+
+ * rule.c (max_pattern_targets): New variable.
+ (count_implicit_rule_limits): Compute its value.
+ * rule.h: Declare it.
+ * implicit.c (pattern_search): Make TRYRULES max_target_patterns
+ times bigger. Move adding new TRYRULES elt inside the inner
+ targets loop, so each matching target gets its own elt in MATCHES
+ and CHECKED_LASTSLASH.
+
+ * file.c (remove_intermediates): If SIG!=0 say `intermediate file'
+ instead of just `file' in error msg.
+
+Fri Jun 25 14:55:15 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv): Turn off
+ --warn-undefined-variables around expansion of SHELL and IFS.
+ * read.c (tilde_expand): Likewise for HOME.
+ (read_all_makefiles): Likewise for MAKEFILES.
+ * vpath.c (build_vpath_lists): Likewise for VPATH.
+
+ * main.c (warn_undefined_variables_flag): New flag variable.
+ (switches): Add --warn-undefined-variables.
+ * make.h (warn_undefined_variables_flag): Declare it.
+ * expand.c (warn_undefined): New function.
+ (reference_variable): Call it if the variable is undefined.
+ (variable_expand): In substitution ref, call warn_undefined if the
+ variable is undefined.
+
+ * default.c (default_pattern_rules): Add `%.c: %.w %.ch' and
+ `%.tex: %.w %.ch' rules.
+ (default_suffix_rules: .w.c, .w.tex): Pass three args: $< - $@.
+ (default_suffixes): Add `.ch'.
+
+Mon Jun 21 17:55:39 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (default_suffixes): Replace `.cweb' with `.w'.
+ (default_suffix_rules): Rename `.cweb.c' and `.cweb.tex' to `.w.c'
+ and `.w.tex'.
+
+Fri Jun 11 14:42:09 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile ($(bindir)/$(instname)): Add missing backslash.
+
+Thu Jun 10 18:14:08 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.4.
+
+ * read.c (multi_glob): Don't free OLD and OLD->name in the
+ FOUND!=0 fork. Use new block-local variable F instead of
+ clobbering OLD.
+
+ * ar.c (glob_pattern_p): New function, snarfed from glob/glob.c.
+ (ar_glob): Call it; return nil immediately if MEMBER_PATTERN
+ contains no metacharacters.
+
+Wed Jun 9 16:25:35 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * ar.c (ar_glob{_match,_alphacompare}): New function.
+
+ * dep.h [! NO_ARCHIVES]: Declare it.
+ * read.c (multi_glob) [! NO_ARCHIVES]: Use it on archive member elts.
+
+ * read.c (read_makefile): Pass flag (1) to parse_file_seq, not to
+ multi_glob (which doesn't take a 3rd arg).
+ * rule.c (install_pattern_rule): Likewise.
+ * default.c (set_default_suffixes): Here too.
+ * function.c (string_glob): Don't pass gratuitous arg to multi_glob.
+
+ * read.c (parse_file_seq) [! NO_ARCHIVES]: Add post-processing
+ loop to translate archive refs "lib(a b)" into "lib(a) lib(b)".
+
+Mon Jun 7 19:26:51 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (installdirs): Actually pass directory names.
+ ($(bindir)/$(instname)): Test chgrp&&chmod exit status with `if';
+ if it fails, echo a warning msg, but don't make the rule fail.
+
+ * read.c (tilde_expand): New function, broken out of tilde_expand.
+ (multi_glob): Call it.
+ (construct_include_path): Expand ~ in directory names.
+ * dep.h: Declare tilde_expand.
+ * main.c (enter_command_line_file): Expand ~ at the start of NAME.
+ (main): Expand ~ in -C args.
+ * read.c (read_makefile): Expand ~ in FILENAME unless TYPE==2.
+
+Fri Jun 4 13:34:47 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (decode_env_switches): Use xmalloc instead of alloca for ARGS.
+
+ * main.c (main): Put result of alloca in temporary variable with
+ simple assignment, to make SGI compiler happy.
+
+Thu Jun 3 20:15:46 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.3.
+
+ * main.c (main): Before re-execing, remove intermediate files, and
+ print the data base under -p. Sexier debugging message.
+
+ * implicit.c (pattern_search): Allocate an extra copy of the name
+ of a winning intermediate file when putting it in FOUND_FILES.
+
+Wed Jun 2 16:38:08 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Pass flag (1) to parse_file_seq, not to
+ multi_glob (which doesn't take a 3rd arg).
+
+ * dir.c (dir_contents_file_exists_p): When reading dirents, ignore
+ chars within D_NAMLEN that are NULs.
+
+ * main.c (decode_switches): Don't savestring ARGV[0] to put it
+ into `other_args'.
+ For string switch, don't savestring `optarg'.
+ (main): Don't free elts of makefiles->list that are "-".
+ Use alloca'd rather than savestring'd storage for elts of
+ makefiles->list that are temporary file names.
+ * read.c (read_all_makefiles): Don't free *MAKEFILES.
+ * file.c (enter_file): Don't strip `./'s.
+ * main.c (enter_command_line_file): New function.
+ (main): Use it in place of enter_file for command-line goals from
+ other_files, and for old_files and new_files.
+
+Mon May 31 18:41:40 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.2.
+
+ * compatMakefile (.SUFFIXES): Add .info.
+ ($(infodir)/$(instname).info): Find make.info* in cwd if there,
+ else in $srcdir. Use basename to remove dir name from installed name.
+
+Thu May 27 17:35:02 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * implicit.c (pattern_search): When interning FOUND_FILES, try
+ lookup_file first; if found, free the storage for our copy of the name.
+
+Wed May 26 14:31:20 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.1.
+
+ * main.c (decode_switches): In usage msg, write `--switch=ARG' or
+ `--switch[=OPTARG]' rather than `--switch ARG' or `--switch [ARG]'.
+
+Mon May 24 16:17:31 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * rule.c (convert_suffix_rule): New function.
+ (convert_to_pattern): Use it instead of doing all the work here
+ several times.
+ For target suffix `.a', generate both the archive magic rule and
+ the normal rule.
+
+ * compatMakefile (distclean): Remove stamp-config.
+
+Sat May 22 16:15:18 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.67.
+
+ * file.c (remove_intermediates): Don't write extra space after `rm'.
+
+ * main.c (struct command_switch.type): Remove `usage_and_exit'.
+ (print_usage_flag): New variable.
+ (switches: --help): Make type `flag', to set print_usage_flag.
+ (init_switches): Remove `usage_and_exit' case.
+ (decode_switches): Likewise.
+ (decode_switches): Print usage if print_usage_flag is set.
+ When printing usage, die with status of BAD.
+ (main): Die with 0 if print_version_flag.
+
+Fri May 21 16:09:28 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.66.
+
+Wed May 19 21:30:44 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (installdirs): New target.
+ (install): Depend on it.
+
+Sun May 16 20:15:07 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.65.2.
+
+Fri May 14 16:40:09 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * vpath.c (construct_vpath_list): In removal loop for DIRPATH==0,
+ set LASTPATH to PATH, not NEXT.
+
+ * dir.c (read_dirstream): Break out of loop after incrementing
+ DS->buckets such that it reaches DIRFILE_BUCKETS; avoid trying to
+ dereference DS->contents->files[DIRFILE_BUCKETS].
+
+ * read.c (read_makefile): Clear no_targets after reading a
+ targetful rule line.
+
+ * main.c (main): If print_version_flag is set, exit after printing
+ the version.
+ (switches): Change --version docstring to say it exits.
+
+ * make.h [butterfly]: #undef POSIX.
+
+Wed May 12 15:20:21 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.65.1.
+
+ * arscan.c (ar_scan) [! AIAMAG]: Don't declare LONG_NAME.
+ [AIAMAG]: Pass TRUNCATE flag arg to (*FUNCTION), always zero.
+
+ * function.c (handle_function): Use fatal instead of
+ makefile_fatal when reading_filename is nil.
+
+ * configure.in: Add AC_GETGROUPS_T.
+ * job.c (search_path): Use GETGROUPS_T in place of gid_t.
+
+Sun May 9 15:41:25 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.65.
+
+Fri May 7 18:34:56 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * function.c (handle_function): Fatal for unmatched paren.
+
+Thu May 6 16:13:41 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.64.3.
+
+ * commands.c (handling_fatal_signal): New variable.
+ (fatal_error_signal): Set it.
+ * job.c (reap_children): Avoid nonreentrant operations if that is set.
+ * make.h: Declare handling_fatal_signal.
+
+ * expand.c (reference_variable): New function, snippet of code
+ broken out of simple-reference case of variable_expand.
+ (variable_expand): Use it for simple refs.
+ (variable_expand): When checking for a computed variable name,
+ notice a colon that comes before the final CLOSEPAREN. Expand
+ only up to the colon, and then replace the pending text with a
+ copy containing the expanded name and fall through to subst ref
+ handling.
+ (variable_expand): Don't bother expanding the name if a colon
+ appears before the first $.
+ (expand_argument): Use alloca instead of savestring.
+ (variable_expand): For subst ref, expand both sides of = before
+ passing to [pat]subst_expand. Use find_percent instead of lindex
+ to check the lhs for a %.
+
+Wed May 5 14:45:52 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.64.2.
+
+Mon May 3 17:00:32 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * arscan.c (ar_name_equal) [AIAMAG]: Abort if TRUNCATED is nonzero.
+
+ * read.c (read_makefile): Pass extra arg of 1 to parse_file_seq,
+ not to multi_glob.
+
+Thu Apr 29 19:47:33 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.64.1.
+
+ * arscan.c (ar_scan): New local flag var LONG_NAME. Set it when
+ we read the member name in any of the fashions that allow it to be
+ arbitrarily long. Pass its negation to FUNCTION.
+ (describe_member): Take TRUNCATED from ar_scan and print it.
+ (ar_name_equal): Take new arg TRUNCATED; if nonzero, compare only
+ the first sizeof (struct ar_hdr.ar_name) chars.
+ (ar_member_pos): Take TRUNCATED from ar_scan, pass to ar_name_equal.
+ * ar.c (ar_member_date_1): Likewise.
+
+Wed Apr 28 21:18:22 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (reap_children): Before calling start_job_command to start
+ the next command line, reset C->remote by calling start_remote_job_p.
+
+Mon Apr 26 15:56:15 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * arscan.c (ar_scan): New local var NAMEMAP.
+ In loop, rename NAME to NAMEBUF; new var NAME is a pointer; new
+ flag IS_NAMEMAP. When extracting the member name, always put a
+ null at its end first. If the name is "//" or "/ARFILENAMES", set
+ IS_NAMEMAP. If we have already read in NAMEMAP, and NAME looks
+ like " /N", get full name from NAMEMAP+N.
+ Else if NAME looks like "#1/N", read N chars from the
+ elt data to be the full name. At end of loop, if IS_NAMEMAP, read
+ the elt's data into alloca'd NAMEMAP.
+ (ar_name_equal): #if 0 truncating code.
+
+ * make.h: Don't declare vfork at all. It returns int anyway,
+ unless <unistd.h> declared it; and we conflicted with some systems.
+
+ * main.c (define_makeflags): If FLAGSTRING[1] is '-', define
+ MAKEFLAGS to all of FLAGSTRING, not &FLAGSTRING[1]. Don't want to
+ define it to something like "-no-print-directory".
+ Use %g format instead of %f for floating-valued things.
+
+Thu Apr 22 18:40:58 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * GNUmakefile (Makefile.in): Use a substitution ref on nolib-deps
+ to change remote-%.dep to remote-stub.dep.
+
+Wed Apr 21 15:17:54 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.64.
+
+Fri Apr 16 14:22:22 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (install): Remove - prefix from chgrp+chmod.
+
+ * Version 3.63.8.
+
+Thu Apr 15 18:24:07 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * acconfig.h: New file; contains "#undef SCCS_GET" for autoheader.
+ * configure.in: If /usr/sccs/get exists, define SCCS_GET to that,
+ else to "get".
+ * default.c (default_variables): Set GET to macro SCCS_GET.
+
+ * read.c (parse_file_seq): Take extra arg STRIP; strip `./' only
+ if nonzero. I hope this is the last time this argument is added
+ or removed.
+ (read_makefile): Pass it 1 when parsing include file names.
+ Pass it 1 when parsing target file names.
+ Pass it 1 when parsing static pattern target pattern names.
+ * rule.c (install_pattern_rule): Pass it 1 when parsing rule deps.
+ * default.c (set_default_suffixes): Pass it 1 when parsing
+ default_suffixes.
+ * function.c (string_glob): Pass it 0 here.
+
+Wed Apr 14 11:32:05 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * misc.c (log_access): New function.
+ ({init,user,make,child}_access): Call it.
+ (child_access): Abort if !access_inited.
+
+ * main.c (switches: --no-print-directory): Use 1 instead of -1 for
+ single-letter option.
+ (init_switches, decode_switches, define_makeflags): An option with
+ no single-letter version is no longer indicated by a value of -1;
+ instead a value that is !isalnum.
+ (init_switches): Don't put such switches into the string, only
+ into the long_option table.
+
+ * make.h [!NSIG] [!_NSIG]: #define NSIG 32.
+
+ * job.c [HAVE_WAITPID]: Remove #undef HAVE_UNION_WAIT. AIX's
+ bsdcc defined WIF* to use union wait.
+
+ * main.c (struct command_switch): Change member `c' to type int.
+ (switches): Make const.
+ (decode_switches): Use `const struct command_switch *'.
+ (define_makeflags): Likewise.
+
+ * default.c (default_suffix_rules): Add `-o $@' to makeinfo rules.
+
+Mon Apr 12 12:30:04 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.63.7.
+
+ * configure.in (AC_HAVE_HEADERS): Check for string.h and memory.h.
+ Removed AC_MEMORY_H.
+ * make.h [USG, NeXT]: Don't test these.
+ [HAVE_STRING_H]: Test this to include string.h and define ANSI_STRING.
+ [HAVE_MEMORY_H]: Test this instead of NEED_MEMORY_H.
+ [! ANSI_STRING]: Put decls of bcopy et al here.
+ [sparc]: Don't test this for alloca.h; HAVE_ALLOCA_H is sufficient.
+ [HAVE_SIGSETMASK]: Test this rather than USG.
+ [__GNU_LIBRARY__ || POSIX]: Don't #include <unistd.h> again.
+ * main.c (main): Handle SIGCHLD if defined, and SIGCLD if defined.
+ It doesn't hurt to do both if they are both defined, and testing
+ USG is useless.
+ * dir.c: Rationalize directory header conditionals.
+ * arscan.c [HAVE_FCNTL_H]: Test this rather than USG || POSIX.
+
+ * default.c (default_suffixes): Add `.txinfo'.
+ (default_suffix_rules): Add `.txinfo.info' and `.txinfo.dvi' rules.
+
+ * variable.c (try_variable_definition): Replace RECURSIVE flag
+ with enum FLAVOR, which can be simple, recursive, or append.
+ Recognize += as append flavor. Set new variable VALUE in a switch
+ on FLAVOR. For append flavor, prepend the variable's old value.
+ If the variable was previously defined recursive, set FLAVOR to
+ recursive; if it was defined simple, expand the new value before
+ appending it to the old value. Pass RECURSIVE flag to
+ define_variable iff FLAVOR == recursive.
+
+ * variable.c (try_variable_definition): Use alloca and bcopy for
+ NAME, instead of savestring. Might as well use stack storage
+ since we free it immediately anyway.
+
+Thu Apr 8 18:04:43 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (start_waiting_jobs): Move decl of JOB outside of loop.
+
+ * main.c (define_makeflags): Rename `struct flag' member `switch'
+ to `cs', which is not a reserved word.
+
+Wed Apr 7 15:30:51 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (new_job): Call start_waiting_jobs first thing.
+ (start_waiting_job): Changed return type from void to int.
+ Return 0 when putting the child on the waiting_jobs chain.
+ (start_waiting_jobs): Don't check load and job_slots here.
+ Always take a job off the chain and call start_waiting_job on it;
+ give up and return when start_waiting_job returns zero.
+
+ * main.c (define_makeflags: struct flag): Change member `char c' to
+ `struct command_switch *switch'.
+ (ADD_FLAG): Set that to CS instead of CS->c.
+ If CS->c is -1, increment FLAGSLEN for the long name.
+ When writing out FLAGS, handle FLAGS->switch->c == -1 and write
+ the long name instead.
+
+ * compatMakefile (stamp-config): New target of old config.h rule.
+ Touch stamp-config after running config.status.
+ (config.h): Just depend on stamp-config, and have empty commands.
+
+Mon Apr 5 20:14:02 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c [HAVE_WAITPID]: #undef HAVE_UNION_WAIT.
+
+ * configure.in (AC_HAVE_FUNCS): Check for psignal.
+
+Fri Apr 2 17:15:46 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (long_option_aliases): Remove "new"; it is already an
+ unambiguous prefix of "new-file".
+
+Sun Mar 28 16:57:17 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.63.6.
+
+Wed Mar 24 14:26:19 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * vpath.c (selective_vpath_search): When adding the
+ name-within-directory at the end of NAME, and we don't add a
+ slash, don't copy FILENAME in one char too far into NAME.
+
+ * variable.c (define_automatic_variables): Find default_shell's
+ length with strlen, not numerology.
+
+Wed Mar 17 20:02:27 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (define_makeflags): Add the elts of a string option in
+ reverse order, so they come out right when reversed again.
+
+Fri Mar 12 15:38:45 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (make.info): Use `-o make.info'.
+
+Thu Mar 11 14:13:00 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (REMOTE): Set to @REMOTE@; change comments to
+ reflect new use.
+ (objs): Replace remote.o with remote-$(REMOTE).o.
+ (srcs): Replace remote.c with remote-$(REMOTE).c.
+ (remote.o): Rule removed.
+
+ * configure.in (REMOTE): Subst this in Makefile et al; default "stub".
+ Use AC_WITH to grok --with-customs arg to set REMOTE=cstms.
+ * GNUmakefile (build.sh.in): Filter out remote-% from objs list.
+ * build.template (REMOTE): New var; set to @REMOTE@.
+ (objs): Add remote-${REMOTE}.o.
+
+Wed Mar 10 15:12:24 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.63.5.
+
+ * implicit.c (pattern_search): Fix "dependent"->"dependency" in
+ "Rejecting impossible" -d msg.
+
+ * file.c (file_hash_enter): New local vars {OLD,NEW}BUCKET. Store
+ mod'd values there; never mod {OLD,NEW}HASH.
+
+Mon Mar 8 13:32:48 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * remake.c [eta10]: Include <fcntl.h> instead of <sys/file.h>.
+
+ * compatMakefile (VPATH): Set this to @srcdir@.
+ (srcdir): Set this to $(VPATH).
+
+ * main.c (main): New local var DIRECTORY_BEFORE_CHDIR. Save in it
+ a copy of CURRENT_DIRECTORY after the first getcwd. Use it
+ instead of CURRENT_DIRECTORY when chdir'ing back before re-execing.
+
+ * remake.c (notice_finished_file): Pass missing SEARCH arg to f_mtime.
+
+ * read.c (read_makefile): Remove extraneous arg to parse_file_seq.
+
+Mon Feb 22 14:19:38 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile ($(infodir)/$(instname).info): Use , instead of /
+ as the sed delimiter char.
+
+Sun Feb 21 14:11:04 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.63.4.
+
+ * rule.h (struct rule): Removed `subdir' member.
+ * rule.c (new_pattern_rule): No need to clear it.
+ (count_implicit_rule_limits): Set the `changed' flag in each dep
+ that refers to a nonexistent directory. No longer set rule-global
+ `subdir' flag with that information.
+ (print_rule_data_base): Don't record info on `subdir' flags.
+
+ * implicit.c (pattern_search): Check the DEP->changed flag rather
+ than the (now gone) RULE->subdir flag. Also test CHECK_LASTSLASH;
+ if it is set, the file might exist even though the DEP->changed
+ flag is set.
+
+ * rule.c (count_implicit_rule_limits): Pass "", not ".", as file
+ name arg to dir_file_exists_p to check for existence of directory.
+
+ * implicit.c (pattern_search): Inside dep-finding loop, set
+ CHECK_LASTSLASH from the value recorded in CHECKED_LASTSLASH[I],
+ rather than computing it anew.
+
+ * commands.c (set_file_variables): Must alloca space for PERCENT
+ and copy it, to avoid leaving the trailing `)' in the value.
+
+ * misc.c (remove_comments): Fixed backslash-checking loop
+ condition to allow it to look at the first char on the line.
+ P2 >= LINE, not P2 > LINE.
+
+ * compatMakefile ($(bindir)/$(instname)): Before moving $@.new to
+ $@, rm $@.old and mv $@ to $@.old.
+
+ * variable.c (try_variable_definition): Take new args FILENAME and
+ LINENO. Fatal if the variable name is empty.
+ * read.c (read_makefile): Change callers.
+ * main.c (main): Likewise.
+
+ * compatMakefile (group): Define to @KMEM_GROUP@, autoconf magic
+ that configure will replace with the group owning /dev/kmem.
+
+Mon Feb 8 14:26:43 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * vpath.c (vpath_search): Take second arg MTIME_PTR, pass thru to
+ selective_vpath_search.
+ (selective_vpath_search): Take second arg MTIME_PTR.
+ If the dir cache thinks a file exists, stat it to make sure, and
+ put the modtime in *MTIME_PTR.
+ * remake.c (library_search): Take second arg MTIME_PTR.
+ When we find a match, record its mtime there.
+ Pass MTIME_PTR through to vpath_search to do same.
+ (f_mtime): Pass &MTIME as new 2nd arg to {vpath,library}_search;
+ store it in FILE->last_mtime if set nonzero.
+ * implicit.c (pattern_search): Pass nil 2nd arg to vpath_search.
+
+ * compatMakefile (remote.o): Prepend `$(srcdir)/' to `remote-*.c',
+ so globbing looks somewhere it will find things.
+
+ * compatMakefile ($(infodir)/$(instname).info): Install `make.info*'
+ not `$(srcdir)/make.info*'; no need to use basename.
+
+Fri Feb 5 12:52:43 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.63.3.
+
+ * compatMakefile (install): Add missing ;\s.
+
+ Make -, @, and + prefixes on a pre-expanded command line affect
+ all lines in the expansion, not just the first.
+ * commands.h (struct commands): Replace `lines_recurse' member
+ with `lines_flags'.
+ (COMMANDS_{RECURSE,SILENT,NOERROR}): New macros, bits to set in
+ that flag byte.
+ * commands.c (chop_commands): Set `lines_flags' instead of
+ `lines_recurse'. Record not only + but also @ and - prefixes.
+ * remake.c (notice_finished_file): Check the COMMANDS_RECURSE bit
+ in FILE->cmds->lines_flags, rather than FILE->cmds->lines_recurse.
+ * job.c (start_job_command): Replaced RECURSIVE and NOPRINT local
+ var with FLAGS; initialize it to the appropriate `lines_flags' byte.
+ Set CHILD->noerror if the COMMANDS_NOERROR bit is set in FLAGS.
+ Set the COMMANDS_SILENT bit in FLAGS for a @ prefix.
+
+ * remake.c (update_goal_chain): Set G->file to its prev after
+ checking for G being finished, since that check needs to examine
+ G->file.
+
+ * configure.in (union wait check) [HAVE_WAITPID]: Try using
+ waitpid with a `union wait' STATUS arg. If waitpid and union wait
+ don't work together, we should not use union wait.
+
+ * Version 3.63.2.
+
+ * remake.c (update_goal_chain): When G->file->updated, move
+ G->file to its prev. We aren't finished until G->file is nil.
+
+Thu Feb 4 12:53:04 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (starting_directory): New global variable.
+ (main): Set it to cwd after doing -Cs.
+ (log_working_directory): Use it, rather than computing each time.
+ * make.h: Declare it.
+
+ * compatMakefile (SHELL): Define to /bin/sh for losing Unix makes.
+
+ * main.c (decode_env_switches): Allocate (1 + LEN + 1) words for
+ ARGV, rather than LEN words plus one byte.
+
+Wed Feb 3 18:13:52 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile ($(bindir)/$(instname)): Put - before
+ install_setgid command line, so its failure won't be an error.
+ (infodir): New variable.
+ (install): Depend on $(infodir)/$(instname).info.
+ ($(infodir)/$(instname).info): New target.
+
+ * read.c (read_makefile): If FILENAMES is nil when we see a line
+ starting with a tab, don't treat it as a command. Just fall
+ through, rather than giving an error.
+
+ * read.c (read_makefile): If the NO_TARGETS flag is set when we see a
+ command line, don't clear it before continuing. We want
+ subsequent command lines to be ignored as well.
+
+ * job.c (new_job): Before expanding each command line, collapse
+ backslash-newline combinations that are inside var or fn references.
+
+Mon Feb 1 16:00:13 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (exec_prefix): Default to $(prefix), not /usr/local.
+
+ * compatMakefile (make.info): Pass -I$(srcdir) to makeinfo.
+
+ * job.c [POSIX] (unblock_sigs): Made global.
+ [!POSIX] (unblock_sigs): Move defns to job.h.
+ * job.h [POSIX] (unblock_sigs): Declare.
+
+Sun Jan 31 19:11:05 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): In vpath parsing, after finding the
+ pattern token, take entire rest of line as the search path, not
+ just the next token.
+
+ * compatMakefile (remote.o): Depend on remote-*.c.
+
+Thu Jan 28 16:40:29 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * commands.c (set_file_variables): Don't define any F or D versions.
+ * variable.c (define_automatic_variables): Define them here as
+ recursively-expanded variables that use the dir and notdir funcs.
+
+ * variable.c (target_environment): In v_default case, don't export
+ o_default or o_automatic variables.
+
+ * configure.in (union wait check): Remove ` and ' inside C code;
+ they confuse the shell script.
+
+Mon Jan 25 13:10:42 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.63.1.
+
+ * vpath.c (construct_vpath_list): When skipping further processing
+ of an elt that is ".", don't also skip the code that pushes P past
+ the next separator.
+
+ * compatMakefile (distclean): Don't remove make-*.
+
+ * configure.in (HAVE_UNION_WAIT): Try to use WEXITSTATUS if it's
+ defined. If one cannot use WEXITSTATUS with a `union wait'
+ argument, we don't want to believe the system has `union wait' at all.
+
+ * remake.c (update_file): Do nothing to print "up to date" msgs.
+ (update_goal_chain): Do it here instead.
+ Use the `changed' flag of each goal's `struct dep' to keep track
+ of whether files_remade (now commands_started) changed around a
+ call to update_file for that goal.
+ When a goal is finished, and its file's update_status is zero (i.e.,
+ success or nothing done), test the `changed' flag and give an "up
+ to date" msg iff it is clear.
+ * make.h (files_remade): Renamed to commands_started.
+ * remake.c: Changed defn.
+ (update_goal_chain): Changed uses.
+ * job.c (start_job_command): Increment commands_started here.
+ (reap_children): Not here.
+
+ * remake.c (update_goal_chain): Don't do anything with files'
+ `prev' members. update_file now completely handles this.
+
+ * variable.c (target_environment): Don't expand recursive
+ variables if they came from the environment.
+
+ * main.c (define_makeflags): For flags with omitted optional args,
+ store {"", 0} with ADD_FLAG. When constructing FLAGSTRING, a flag
+ so stored cannot have more flags appended to the same word.
+
+Fri Jan 22 14:46:16 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (print_variable_set): In vars/bucket calculation,
+ don't spuriously multiply by 100.
+
+ * Version 3.63.
+
+ * job.c [!HAVE_UNION_WAIT] (WTERMSIG, WCOREDUMP, WEXITSTATUS):
+ Don't define if already defined.
+
+ * remake.c (update_file): Don't keep track of the command_state before
+ calling update_file_1. Remove local variable COMMANDS_FINISHED,
+ and don't test it to decide to print the "is up to date" msg.
+ Testing for files_remade having changed should always be sufficient.
+ The old method lost when we are called in the goal chain run on a
+ makefile, because the makefile's command_state is already
+ `cs_finished' from the makefile chain run.
+
+ * misc.c [HAVE_SETRE[GU]ID]: Test these to decl setre[gu]id.
+
+ * configure.in: Rewrote wait checking.
+ Use AC_HAVE_HEADERS to check for <sys/wait.h>.
+ Use AC_HAVE_FUNCS to check for waitpid and wait3.
+ Use a compile check to test just for `union wait'.
+ * job.c: Rewrote conditionals accordingly.
+ [HAVE_WAITPID]: Test this only to define WAIT_NOHANG.
+ [HAVE_WAIT3]: Likewise.
+ [HAVE_UNION_WAIT]: Test this to define WAIT_T and W*.
+
+ * configure.in: Set CFLAGS and LDFLAGS before all checks.
+
+ * dir.c: Add static forward decls of {open,read}_dirstream.
+
+Thu Jan 21 17:18:00 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.31.
+
+ * job.c [NGROUPS_MAX && NGROUPS_MAX==0]: #undef NGROUPS_MAX.
+
+ * compatMakefile (CFLAGS, LDFLAGS): Set to @CFLAGS@/@LDFLAGS@.
+ * build.template (CFLAGS, LDFLAGS): Same here.
+ * configure.in: AC_SUBST(CFLAGS) and LDFLAGS.
+ Set them to -g if not defined in the environment.
+
+ * remake.c (library_search): Use LIBNAME consistently, setting it
+ only once, to be the passed name sans `-l'.
+ Pass new var FILE to be modified by vpath_search.
+
+Mon Jan 18 14:53:54 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.30.
+
+ * job.c (start_waiting_jobs): Return when job_slots_used is equal to
+ job_slots.
+
+ * configure.in: Add AC_CONST for the sake of getopt.
+
+ * read.c (read_makefile): Continue after parsing `override'
+ directive, rather than falling through to lossage.
+ Check for EOL or blank after "override define".
+
+ * compatMakefile (.c.o, remote.o): Put $(CFLAGS) after other switches.
+
+Fri Jan 15 12:52:52 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.29.
+
+ * main.c (define_makeflags): After writing everything into
+ FLAGSTRING, only back up two chars if [-1] is a dash, meaning we
+ just wrote " -". Always terminate the string at *P.
+
+ * remake.c (library_search): When constructing names in std dirs,
+ use &(*LIB)[2] for the stem, not LIBNAME (which points at the
+ buffer we are writing into!).
+
+Thu Jan 14 13:50:06 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Set IN_IGNORED_DEFINE for "override
+ define" when IGNORING is true.
+
+ * compatMakefile (distclean): Remove config.status and build.sh.
+
+Wed Jan 13 16:01:12 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.28.
+
+ * misc.c (xmalloc, xrealloc): Cast result of malloc/realloc to
+ (char *).
+
+ * arscan.c (ar_scan) [AIAMAG]: Cast read arg to (char *).
+
+ * variable.c (define_automatic_variables): Override SHELL value for
+ origin o_env_override as well as o_env.
+
+ * GNUmakefile (build.sh.in): Don't replace %globobjs%. Instead,
+ add the names of the glob objects (w/subdir) to %objs%.
+ * build.template (globobjs): Removed.
+ Take basename of $objs before linking.
+
+Tue Jan 12 12:31:06 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.27.
+
+ * configure.in (AC_OUTPUT): Also edit build.sh.
+ * build.template: New file.
+ * GNUmakefile (build.sh.in): New rule to create it from build.template.
+ (make-$(version).tar.Z): Depend on build.sh.in.
+
+ * main.c (die): Call print_data_base if -p.
+ (main): Don't call it here.
+
+ * compatMakefile (defines): Add @DEFS@. configure should turn this
+ into -DHAVE_CONFIG_H.
+
+Mon Jan 11 14:39:23 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.26.
+
+ * misc.c (init_access): Surround with #ifdef GETLOADAVG_PRIVILEGED.
+ ({make,user,child}_access) [! GETLOADAVG_PRIVILEGED]: Make no-op.
+ * compatMakefile (install_setgid): New var, set by configure.
+ (install): Install setgid $(group) only if $(install_setgid) is true.
+
+Fri Jan 8 15:31:55 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (load_too_high): If getloadavg fails with errno==0, give a
+ message saying that load limits are not supported.
+
+ * vpath.c (construct_vpath_list): Rewrote path deletion code to
+ not try to use PATH's next link after freeing PATH.
+
+ * main.c (define_makeflags): Rewritten; now handles string-valued
+ option, and has no arbitrary limits.
+ (switches): Set `toenv' flag for -I and -v.
+
+ * main.c (decode_env_switches): Cast return value of alloca to char *.
+
+ * misc.c (child_access) [HAVE_SETREUID, HAVE_SETREGID]: Use
+ setre[gu]id in place of set[gu]id.
+
+Wed Jan 6 15:06:12 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (main): Define MAKEOVERRIDES, MAKE, and MAKE_COMMAND with
+ origin o_default.
+
+ * make.h [POSIX]: Don't test this to use ANSI_STRING.
+ Testing STDC_HEADERS should be sufficient.
+
+ * job.h: Declare start_waiting_jobs.
+
+ * read.c (read_makefile): Add missing parens in if stmt that find
+ conditional directives.
+
+ * main.c (main): Declare init_dir.
+ * implicit.c (pattern_search): Always use two % specs in a
+ DEBUGP2, and always pass two non-nil args.
+ Cast field width args to int.
+ Add missing parens in !RULE->subdir if stmt.
+ * function.c (expand_function, patsubst_expand): Add parens around
+ assignments inside `while' stmts.
+ * commands.c (print_commands): Cast field width args to int.
+
+ * read.c (do_define): Cast return value of alloca to (char *).
+
+ * main.c (init_switches): New function, broken out of decode_switches.
+ (decode_switches): Take new arg ENV. If set, ignore non-option
+ args; print no error msgs; ignore options with clear `env' flags.
+ (decode_env_switches): Rewritten to chop envar value into words
+ and pass them to decode_switches.
+ (switches): Set `env' flag for -I and -v.
+
+ * dir.c (init_dir): Cast free to __glob_closedir_hook's type.
+
+Tue Jan 5 14:52:15 1993 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.25.
+
+ * job.c [HAVE_SYS_WAIT || !USG]: Don't #include <sys/time.h> and
+ <sys/resource.h>. <sys/time.h> interacts badly with <time.h>, and
+ we don't need these anyway.
+
+ * configure.in (AC_HAVE_FUNCS): Check for setre[gu]id.
+ * misc.c ({user,make}_access): Test #ifndef HAVE_SETRE[GU]ID, not
+ #ifdef POSIX || USG. SunOS 4.1 is supposedly POSIX.1 compliant,
+ but its set[gu]id functions aren't; its setre[gu]id functions work.
+
+ * misc.c ({user,make,child}_access): Give name of caller in error msgs.
+
+ * job.c (load_too_high): Say "cannot enforce load limit" in error msg.
+
+ * configure.in: Call AC_PROG_CC.
+ * compatMakefile (CC): Define to @CC@ (autoconf magic).
+
+ * compatMakefile: Add .NOEXPORT magic target.
+
+Mon Jan 4 17:00:03 1993 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (print_version): Updated copyright to include 93.
+
+Thu Dec 31 12:26:15 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * make.h [_AIX]: Don't declare alloca.
+
+Tue Dec 29 13:45:13 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.24.
+
+ * compatMakefile (objs): Add signame.o.
+ (srcs): Add signame.[ch].
+
+ * compatMakefile (srcs): Add config.h.in.
+ (remote.o): Add -I. before -I$(srcdir).
+
+Mon Dec 28 15:51:26 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.23.
+
+ * read.c (readline): Fatal when LEN==0, indicating a line starting
+ with a NUL.
+ (readline): Take new arg LINENO, for use in error msg.
+ (read_makefile, do_define): Pass it.
+
+ * compatMakefile (glob/libglob.a): Pass -DHAVE_CONFIG_H in CPPFLAGS.
+ (.c.o): Add -I. before -I$(srcdir).
+
+Wed Dec 23 12:12:04 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Accept and ignore a rule with no targets.
+
+ * compatMakefile (ALLOCA_SRC): New variable.
+ (srcs): Include its value.
+
+ * read.c (struct conditional): Renamed member `max_ignoring' to
+ `allocated'; added new member `seen_else'.
+ (conditional_line): Initialize seen_else flag when starting an `if...';
+ set it when we see an `else'; fatal if set when we see `else'.
+ (read_makefile): Fatal "missing `endif'" if there are any pending
+ conditionals, not just if we are still ignoring.
+
+Tue Dec 22 15:36:28 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (manext): Set to 1, not l.
+ ($(mandir)/$(instname).$(manext)): Use $(srcdir) for make.man in cmds.
+
+ * file.c (file_hash_enter): Don't call uniquize_deps here.
+ * read.c (record_files): Likewise.
+ * implicit.c (pattern_search): Likewise.
+ * commands.c (set_file_variables): Call it only here.
+
+ * default.c (default_variables) [__convex__]: FC=fc.
+
+ * variable.c (target_environment): Expand the values of recursively
+ expanded variables when putting them into the environment.
+ * expand.c (recursively_expand): Made global.
+ * make.h (recursively_expand): Declare it.
+
+ * remake.c (check_dep): Set FILE->command_state to cs_deps_running
+ when a dep's command_state is cs_running or cs_deps_running.
+
+ * read.c (read_makefile): Changed error msg for spurious cmds to
+ not say "first target".
+
+Sun Dec 20 17:56:09 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * configure.in: Do AC_CONFIG_HEADER right after AC_INIT.
+ * make.h (HAVE_CONFIG_H): #include "config.h", then #define this.
+ * compatMakefile (config.h, configure, config.h.in): New rules.
+ (defines): Removed @DEFS@.
+
+Thu Dec 17 16:11:40 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (realclean): Just depend on distclean; no cmds.
+ (distclean): Do what realclean did before; also remove Makefile and
+ config.h; don't remove configure.
+ (info, dvi): New targets; depend on make.{info,dvi}.
+ (doc): Removed target.
+ (MAKEINFO, TEXI2DVI): New vars.
+ (make.info, make.dvi): Use them instead of explicit cmds.
+
+Wed Dec 16 16:25:24 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * configure.in: Added fcntl.h to AC_HAVE_HEADERS. getloadavg cares.
+
+Wed Dec 9 15:21:01 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (long_option_aliases): Add --new-file alias for -W.
+
+ * default.c (default_variables): Change all C++ to CXX and C++FLAGS
+ to CXXFLAGS.
+
+ * read.c (do_define): Expand the variable name before using it.
+
+ * main.c (main): Define variable "MAKE_COMMAND" to argv[0];
+ define "MAKE=$(MAKE_COMMAND) $(MAKEOVERRIDES)" always.
+
+ * remake.c (library_search): Search for libNAME.a in cwd; look in
+ vpath before looking in standard dirs, not after.
+ Changed order of std dirs to: /lib, /usr/lib, ${prefix}/lib.
+
+Mon Nov 23 14:57:34 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * default.c (default_pattern_rules, default_terminal_rules): Added
+ brackets around initializers.
+
+ * variable.c (try_variable_definition): Don't check for LINE[0]=='\t'.
+ (try_variable_definition): Expand the name before defining the var.
+
+ * job.c (init_siglist): Removed function.
+ Removed decl of `sys_siglist'.
+ * make.h [! HAVE_SYS_SIGLIST]: #include "signame.h".
+ [HAVE_SYS_SIGLIST && !SYS_SIGLIST_DECLARED]: Declare sys_siglist
+ only under these conditions.
+ * main.c (main): Don't declare init_siglist.
+ (main) [! HAVE_SYS_SIGLIST]: Call signame_init instead of init_siglist.
+
+Wed Nov 18 14:52:51 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (record_files): Don't try to append to FIRSTDEPS if it's
+ nil; instead just set it to MOREDEPS.
+
+Mon Nov 16 17:49:17 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * vpath.c (construct_vpath_list): Initialize P to DIRPATH before
+ loop that sets MAXELEM.
+
+Fri Nov 13 18:23:18 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.22.
+
+Thu Nov 12 15:45:31 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (start_job_command): Under -n, increment files_remade after
+ processing (i.e., printing) all command lines.
+
+Tue Nov 10 15:33:53 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * read.c (record_files): Append new deps if this rule has no
+ commands; prepend them to existing deps if this rule has no commands.
+
+ * dir.c (open_dirstream): Return nil if DIR->contents->files is nil.
+
+ * read.c (parse_file_seq): Removed last arg STRIP. Always strip `./'s.
+ (read_makefile): Changed callers.
+ * function.c (string_glob): Likewise.
+ * rule.c (install_pattern_rule): Likewise.
+
+Mon Nov 9 17:50:16 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (files_remade): Made global.
+ (notice_finished_file): Don't increment files_remade here; this
+ function gets called in many situations where no remaking was in
+ fact done.
+ * job.c (reap_children): Do it here instead, when we know that
+ actual commands have been run for the file.
+ * make.h (files_remade): Declare it.
+
+Thu Nov 5 18:26:10 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * vpath.c (construct_vpath_list): Allow blanks as well as colons to
+ separate elts in the search path.
+
+ * read.c (read_makefile): Don't fatal on extra tokens in `vpath'.
+ The search path can contain spaces now.
+
+Tue Nov 3 20:44:32 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (check): New target; no-op.
+
+ * file.c (file_hash_enter): Mod OLDHASH by FILE_BUCKETS after
+ testing for OLDHASH==0 but before using the value.
+ (rename_file): Don't mod OLDHASH by FILE_BUCKETS before passing it
+ to file_hash_enter.
+
+ * file.c (rename_file): Notice when OLDFILE->cmds came from
+ default.c, and don't try to print ->filename in that case.
+
+Sun Oct 25 01:48:23 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (update_file): Don't process F->also_make here.
+ (notice_finished_file): Don't process FILE->also_make if no attempt
+ to update FILE was actually made.
+ Fixed to call f_mtime directly to refresh their modtimes.
+
+Sat Oct 24 22:08:59 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (find_percent): Don't increment P again after skipping
+ an escaped %.
+
+ * expand.c (variable_expand): In call to patsubst_expand, don't
+ find `%'s ourselves; let that function do it.
+
+ * read.c (read_makefile: record_waiting_files): Don't call
+ record_files if FILENAMES is nil.
+ (read_makefile): All alternatives in the parsing, except for rule
+ lines, fall through to the end of the loop. At the end of the
+ loop, do record_waiting_files so we notice later spurious cmds.
+
+Fri Oct 23 15:57:37 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (define_automatic_variables): Free old value of SHELL
+ before replacing it.
+
+Thu Oct 15 18:57:56 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (.c.o): Add -I$(srcdir)/glob to flags.
+
+ * dir.c (open_dirstream): Cast return value to __ptr_t.
+
+ * default.c (default_variables: "GET") [_IBMR2]: Use USG defn.
+
+ * make.h (MAXPATHLEN): Moved out of #ifndef POSIX.
+ (GET_PATH_MAX): Moved from #ifdef POSIX to #ifdef PATH_MAX #else.
+ Define as (get_path_max ()).
+ [! PATH_MAX] (NEED_GET_PATH_MAX): Define.
+ [! PATH_MAX] (get_path_max): Declare fn.
+ * misc.c [NEED_GET_PATH_MAX] (get_path_max): New function.
+
+Mon Oct 12 13:34:45 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.21.
+
+ * job.c (sys_siglist): Only declare #ifndef SYS_SIGLIST_DECLARED.
+ * make.h [! HAVE_SYS_SIGLIST && HAVE__SYS_SIGLIST]: #define
+ SYS_SIGLIST_DECLARED.
+
+ * dir.c (file_impossible): When initializing DIR->contents, set
+ DIR->contents->dirstream to nil.
+
+ * compatMakefile (GLOB): Define new variable.
+ (objs): Use it, rather than glob/libglob.a explicitly.
+
+ * read.c (parse_file_seq): When stripping "./", handle cases like
+ ".///foo" and "./////".
+ * file.c (lookup_file, enter_file): Likewise.
+
+Sun Oct 11 17:00:35 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * dir.c (struct dirstream, {open,read}_dirstream): New
+ data type and functions to read a directory sequentially.
+ (init_dir): New function to hook it into glob.
+ * main.c (main): Call init_dir.
+
+ * compatMakefile (objs): Added glob/libglob.a.
+ * configure.in: Remove code to test for glob.
+
+Fri Oct 9 12:08:30 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (record_files): Generalized test for NAME pointing
+ somewhere into F->name.
+
+ * variable.c (define_variable_in_set): Free old value when replacing.
+
+ * read.c (do_define): Free the linebuffer before returning.
+ (record_files): When clearing .SUFFIXES deps, free their data.
+ (multi_glob): Free OLD and its data when replacing it with results
+ of glob run.
+
+ * commands.c (set_file_variables): Use alloca in place of xmalloc
+ for temp space for $^, $?, et al.
+
+ * dir.c (struct directory): New member `contents' replaces `files'
+ and `dirstream'.
+ (struct directory_contents): New type.
+ (directories_contents): New hash table.
+ (dir_struct_file_exists_p): Take a struct directory_contents.
+ (dir_file_exists_p): Pass it the `contents' member of the dir found.
+ (dir_struct_file_exists_p): Renamed to dir_contents_file_exists_p;
+ made static. Return 0 if DIR is nil (meaning it couldn't be stat'd).
+ (dir_file_exists_p, find_directory): Change all callers.
+ (file_impossible): Use DIR->contents, initializing it if nil.
+ (print_dir_data_base): Use DIR->contents, and print out device and
+ inode numbers with each directory.
+
+ * Changes for performance win from John Gilmore <gnu@cygnus.com>:
+ * dir.c (DIRECTORY_BUCKETS): Increase to 199.
+ (DIRFILE_BUCKETS): Decrease to 107.
+ (find_directory): Allocate and zero a multiple of
+ sizeof (struct dirfile *), not of sizeof (struct dirfile).
+ (dir_struct_file_exists_p): New function, nearly all code from
+ dir_file_exists_p.
+ (dir_file_exists_p): Just call find_directory+dir_struct_file_exists_p.
+ * vpath.c (selective_vpath_search): Remove redundant
+ dir_file_exists_p call.
+
+ * configure.in: Comment out glob check; always use our code.
+
+Fri Oct 2 19:41:20 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * make.h [! HAVE_SYS_SIGLIST && HAVE__SYS_SIGLIST]: #define
+ HAVE_SYS_SIGLIST; after doing #define sys_siglist _sys_siglist, we
+ do have it.
+
+Wed Sep 30 19:21:01 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (main): Don't do -w automatically if -s.
+
+Tue Sep 29 21:07:55 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (printed_version): Move variable inside print_version.
+ (print_version): Return immediately if printed_version is set.
+ (die): Don't test printed_version here.
+ (decode_switches): Under -v, do print_version before giving usage.
+ (DESCRIPTION_COLUMN): New macro.
+ (decode_switches): Use it when printing the usage message.
+ Leave at least two spaces between options and their descriptions.
+
+Fri Sep 25 13:12:42 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.20.
+
+Wed Sep 16 16:15:22 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Save errno value from trying to open
+ FILENAME, and restore it before erring; otherwise we get the errno
+ value from the last elt of the search path.
+
+Tue Sep 15 15:12:47 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (long_option_aliases): Add --stop for -S.
+
+ * read.c (word1eq): Do strncmp before dereferencing someplace that
+ may be out in space.
+
+Wed Sep 9 15:50:41 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (notice_finished_file): If all the command lines were
+ recursive, don't do the touching.
+
+ * job.c (start_job_command): Don't check for + here.
+ * commands.c (chop_commands): Do it here instead.
+
+ * default.c (default_terminal_rules): Prepend + to cmds for RCS.
+
+Wed Sep 2 17:53:08 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (objs): Include $(ALLOCA).
+
+ * make.h [CRAY]: Move #define signal bsdsignal to before #includes.
+
+Thu Aug 27 17:45:43 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * read.c (default_include_directories): Add INCLUDEDIR first.
+ * compatMakefile (includedir): Define.
+ (defines): Add -D for INCLUDEDIR="$(includedir)".
+
+ * read.c (read_makefile): Grok multiple files in `include';
+ globbing too.
+
+ * remake.c (library_search): New function.
+ (library_file_mtime): Remove function.
+ (f_mtime): Use library_search instead of library_file_mtime.
+ * compatMakefile (libdir): Define.
+ (defines): Add -D for LIBDIR="$(libdir)".
+ * make.texinfo (Libraries/Search): Document change.
+
+ * file.c (rename_file): Fix file_hash_enter call with missing arg.
+
+Wed Aug 26 17:10:46 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.19.
+
+ * main.c (main): Set command_state to cs_finished for temp files
+ made for stdin makefiles.
+
+ * main.c (decode_switches): Don't tell getopt to return non-option
+ args in order.
+ Ignore an argument of `-'.
+
+Thu Aug 20 13:36:04 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c (start_job_command): If (touch_flag && !RECURSIVE), ignore
+ the command line and go to the next.
+ (notice_finished_file): Under -t, touch FILE.
+ * remake.c (remake_file): Don't touch it here.
+
+Wed Aug 19 16:06:09 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * function.c (pattern_matches): Use temporary for strlen (WORD)
+ instead of two function calls.
+
+ * compatMakefile (LOAD_AVG): Remove variable and comments.
+
+Tue Aug 18 14:58:58 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * make.texinfo (Running): Node renamed to `make Invocation'.
+
+Fri Aug 14 12:27:10 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * arscan.c (ar_name_equal): Don't compare [MAX-3..MAX] if
+ NAMELEN != MEMLEN.
+
+Thu Aug 13 17:50:09 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.18.
+
+ * main.c: Don't #include <time.h>; make.h already does.
+
+Mon Aug 10 17:03:01 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * implicit.c (pattern_search): Fixed copying of suffix when building
+ also_make elts.
+
+ * function.c (expand_function: `shell'): Make sure BUFFER is
+ null-terminated before replacing newlines.
+
+ * compatMakefile (mandir): Use man$(manext), not always manl.
+
+Sun Aug 2 01:42:50 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * rule.c (new_pattern_rule): Not static.
+ * rule.h: Declare it.
+
+ * file.c (file_hash_enter): New function, most code from rename_file.
+ (rename_file): Call it.
+ * file.h (file_hash_enter): Declare it.
+
+ * dep.h: Doc fix.
+
+Thu Jul 30 15:40:48 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (decode_switches): Handle usage_and_exit when building
+ long options vector.
+
+ * default.c (default_terminal_rules): Make RCS rules use $(CHECKOUT,v).
+ (default_variables): Define CHECKOUT,v (hairy).
+
+ * make.h [!HAVE_SYS_SIGLIST && HAVE__SYS_SIGLIST]: #define
+ sys_siglist to _sys_siglist.
+
+Sun Jul 26 16:56:32 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * NEWS: Add header and tail copyright info like Emacs NEWS.
+
+ * make.h [ANSI_STRING]: Don't #define index, rindex, bcmp, bzero,
+ bcopy if already #define'd.
+ [STDC_HEADERS] (qsort, abort, exit): Declare here.
+ [! __GNU_LIBRARY__ && !POSIX]: Not here.
+
+ * make.h [_AIX]: #pragma alloca first thing.
+
+ * job.c (start_waiting_job): Set the command_state to cs_running
+ when we queue a job on waiting_jobs.
+
+Fri Jul 24 02:16:28 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.c (define_automatic_variables): Use "" instead of nil
+ for empty value.
+
+Thu Jul 23 22:31:18 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.17.
+
+ * main.c (struct command_switch.type): Add alternative usage_and_exit.
+ (command_switches): Add -h/--help.
+
+Thu Jul 16 14:27:50 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * GNUmakefile (make-$(version).tar.Z): Include NEWS, not CHANGES.
+ * README.template: Mention NEWS.
+ * CHANGES: Renamed to NEWS.
+
+ * main.c [! STDC_HEADERS] [sun]: Don't declare exit.
+
+Tue Jul 14 18:48:41 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (main): Set -o files' command_states to cs_finished.
+
+ * rule.c (count_implicit_rule_limits): Decrement num_pattern_rules
+ when tossing a rule.
+
+ * main.c (main): Use alloca only in simple local var assignment,
+ for braindead SGI compiler.
+
+ * rule.c (print_rule_data_base): Barf if num_pattern_rules is
+ inconsistent with the number computed when listing them.
+
+Mon Jul 13 17:51:53 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * commands.c (set_file_variables): For $? and $^ elts that are archive
+ member refs, use member name only.
+
+Fri Jul 10 00:05:04 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * variable.h (struct variable.export): Add new alternative v_ifset.
+ * variable.c (target_environment): Check for it.
+ (define_automatic_variables): Set it for MAKEFILES.
+
+Thu Jul 9 21:24:28 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (objs): Remove getloadavg.o; $(extras) gets it.
+ (remote.o): Use $(srcdir)/remote.c, not $remote.c<.
+ (distclean, mostlyclean): New targets.
+
+Tue Jul 7 19:12:49 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.16.
+
+ * compatMakefile (config.status): Remove rule.
+
+ * job.c (start_waiting_job): Free C after using C->file, not before.
+
+Sat Jul 4 20:51:49 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * commands.c, job.c, main.c, make.h, remote-cstms.c: Use #ifdef
+ HAVE_* instead of #ifndef *_MISSING.
+ * configure.in: Use AC_HAVE_FUNCS instead of AC_MISSING_FUNCS (gone).
+
+Thu Jul 2 18:47:52 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * main.c (main): makelevel>0 or -C implies -w.
+
+Tue Jun 30 20:50:17 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * file.c, job.c, function.c: Don't #include <errno.h>.
+ make.h: Do it here instead.
+ * arscan.c (ar_member_touch): Don't declare errno.
+
+Thu Jun 25 17:06:55 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * GNUmakefile (make-$(version).tar.Z): Depend on INSTALL, configure.in.
+
+ * remake.c (update_file): If commands or deps are running after
+ update_file_1 returns, break out of the :: rule (->prev) loop and
+ just return.
+
+ * job.c (job_next_command): New function; code from start_job.
+ (start_job_command): Renamed from start_job. Call job_next_command
+ and recurse for empty command lines and -n.
+ (start_waiting_job): Call start_job_command, not start_job.
+ (new_job): Call job_next_command to prime the child structure, and
+ then call start_waiting_job.
+ (reap_children): Use job_next_command and start_job_command.
+ (start_waiting_job): Call start_remote_job_p here, and store its
+ result in C->remote. If zero, check the load average and
+ maybe put C on waiting_jobs.
+ (start_job_command): Test CHILD->remote rather than calling
+ start_remote_job_p. Don't do load avg checking at all here.
+
+ * main.c (main): Don't handle SIGILL, SIGIOT, SIGEMT, SIGBUS,
+ SIGSEGV, SIGFPE or SIGTRAP.
+
+ * compatMakefile (glob/libglob.a): Don't pass srcdir to sub-make.
+ configure will set it in glob/Makefile.
+
+Wed Jun 24 19:40:34 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * dir.c [DIRENT] (direct): Don't define to dirent.
+ [! DIRENT] (direct): Define to dirent.
+ (dir_file_exists_p): Use struct dirent instead of struct direct.
+
+ * make.h (getcwd): No space between macro and ( for args!
+
+ * job.c (start_job): Don't put the job on waiting_jobs if
+ job_slots_used==0.
+
+ * make.texinfo (Missing): Shortened title.
+
+Tue Jun 23 18:42:21 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * file.c (remove_intermediates): Print "rm" commands under -n.
+
+Mon Jun 22 16:20:02 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.15.
+
+Fri Jun 19 16:20:26 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * arscan.c [M_UNIX]: #undef M_XENIX.
+
+Wed Jun 17 17:59:28 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * default.c (default_terminal_rules): Put @ prefix on RCS cmds.
+
+Tue Jun 16 19:24:17 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile (getloadavg.o): Removed special rule.
+ (CFLAGS): Don't include $(defines).
+ (.c.o): Define suffix rule.
+ (glob/libglob.a): Pass CPPFLAGS=$(defines) to submake.
+ (GETOPT_SRC, srcs, tagsrcs): Prefix files with $(srcdir)/.
+
+ * arscan.c (ar_name_equal): Moved local vars inside #if'd block.
+
+ * make.h (max): Removed.
+ * expand.c (variable_buffer_output): Don't use it.
+
+ * compatMakefile (INSTALL): Define.
+ (Makefile): New rule to make from Makefile.in.
+ (srcdir): Define.
+ (VPATH): Define.
+ (getloadavg.o, remote.o): Use autoconf $foo< hack.
+
+ * commands.c (fatal_error_signal): Removed return.
+
+Mon Jun 15 17:42:51 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.14.
+
+ * make.texinfo (Summary): New node.
+ (Special Targets): Mention .EXPORT_ALL_VARIABLES here.
+
+ * variable.c (max): Moved to make.h.
+
+ * compatMakefile (objs, srcs): Added ar & arscan.
+
+ * job.c (start_waiting_job): New function, 2nd half of new_job.
+ (new_job): Call it.
+ (start_waiting_jobs): New function.
+ * remake.c (update_goal_chain): Call start_waiting_jobs at the top
+ of the main loop.
+ * compatMakefile (objs, srcs): Removed load, added getloadavg.
+
+Fri Jun 12 19:33:16 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c (load_too_high): New function. Uses getloadavg.
+ (waiting_jobs): New variable.
+ (start_job): Don't call wait_to_start_job. Instead, if
+ load_too_high returns nonzero, add the child to the
+ `waiting_jobs' chain and return without starting the job.
+
+Thu Jun 11 00:05:28 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * expand.c (variable_buffer_output): Made global again.
+ * variable.h: And declare it.
+
+ * arscan.c (PORTAR): Define for all systems if PORT5AR is not defined.
+ (AR_NAMELEN, AR_TRAILING_SLASH): Removed.
+ (ar_scan): Don't use it. Don't #ifdef AR_TRAILING_SLASH; just look
+ for a slash in the archive at run time.
+ (ar_name_equal): Rewrote .o hacking to not use AR_NAMELEN, and to
+ cope with trailing-slash and non-trailing-slash archives.
+
+ * main.c (main) [! SETVBUF_REVERSED]: Test this instead of USGr3 et al.
+ [SETVBUF_REVERSED]: Always allocate a buffer ourselves.
+
+ * load.c (load_average) [sgi]: Use sysmp call.
+
+ * compatMakefile (INSTALL_DATA, INSTALL_PROGRAM): Define.
+ ($(bindir)/$(instname), $(mandir)/make.$(manext)): Use them.
+
+ * make.h [HAVE_VFORK_H]: #include <vfork.h>.
+ (vfork, VFORK_NAME): Don't define.
+ * job.c (start_job): Use "vfork" in place of VFORK_NAME.
+
+ * make.h [HAVE_LIMITS_H, HAVE_SYS_PARAM_H]: If #define'd, #include
+ the each file. Rearranged PATH_MAX hacking.
+ * job.c: Rearranged NGROUPS_MAX hacking.
+
+ * remake.c (fstat, time): Don't declare.
+
+ * compatMakefile (defines): Value is @DEFS@.
+ (LOADLIBES): Value is @LIBS@.
+ (extras): Value is @LIBOBJS@.
+ (ARCHIVES, ARCHIVES_SRC, ALLOCASRC): Removed.
+ * arscan.c, ar.c: Surround body with #ifndef NO_ARCHIVES.
+
+ * misc.c [! HAVE_UNISTD_H]: Test instead of !POSIX to decl get*id.
+
+ * make.h [GETCWD_MISSING]: Test instead of !USG && !POSIX et al.
+ (getcwd): Just declare if present. If not, declare as a macro
+ using getwd, and declare getwd.
+ [PATH_MAX] (GET_PATH_MAX): #define to PATH_MAX.
+ * main.c (main, log_working_directory): Use getcwd instead of getwd.
+
+ * main.c (main) [SETLINEBUF_MISSING]: Test this instead of USG.
+
+ * make.h (SIGHANDLER, SIGNAL): Removed.
+ (RETSIGTYPE): Define if not #define'd.
+ * main.c (main): Use signal in place of SIGNAL.
+
+ * main.c [SYS_SIGLIST_MISSING]: Test instead of USG.
+
+ * job.c (search_path) [GETGROUPS_MISSING]: Test instead of USG.
+ [HAVE_UNISTD_H]: Test instead of POSIX to not decl getgroups.
+
+ * main.c [! HAVE_UNISTD_H]: Test instead of !POSIX to decl chdir.
+ [! STDC_HEADERS]: Test instead of !POSIX to decl exit & atof.
+
+ * job.c (child_handler), commands.c (fatal_error_signal): Return
+ RETSIGTYPE instead of int.
+ * main.c (main): Declare fatal_error_signal and child_handler here
+ to return RETSIGTYPE; removed top-level decl of former.
+
+ * commands.c (fatal_error_signal), job.c (unblock_sigs, start_job),
+ main.c [SIGSETMASK_MISSING]: Test this instead of USG.
+
+Wed Jun 10 22:06:13 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c [HAVE_WAITPID]: Test this instead of USG.
+ [! HAVE_UNISTD_H]: Test this instead of !POSIX to declare misc fns.
+ (GID_T): Don't #define.
+ (search_path): Use gid_t instead of GID_T.
+ [GETDTABLESIZE_MISSING, SYS_SIGLIST_MISSING, DUP2_MISSING]: Test
+ these individually instead of USG for all.
+ * make.h (ctime): Don't declare. #include time.h instead.
+ [HAVE_UNISTD_H]: #include <unistd.h> and #define POSIX #ifdef
+ _POSIX_VERSION.
+ * dir.c [__GNU_LIBRARY__] (D_NAMLEN): Define to use d_namlen member.
+ * make.h [NEED_MEMORY_H]: Only include memory.h #ifdef this.
+
+ * arscan.c: Removed #ifdef mess about string.h et al.
+ Just #include make.h instead.
+ * make.h (fstat, atol): Declare.
+
+ * commands.c (fatal_error_signal): Don't use sigmask to check for
+ propagated signals; use ||s instead.
+ (PROPAGATED_SIGNAL_MASK): Removed.
+ (fatal_error_signal) [POSIX]: Use sigprocmask in place of sigsetmask.
+
+ * variable.c (variable_buffer, variable_buffer_length,
+ initialize_variable_output, variable_output): Moved to expand.c;
+ made all static.
+ (struct output_state, save_variable_output,
+ restore_variable_output): Removed.
+ * expand.c (initialize_variable_output): Put a NUL at the beginning
+ of the new buffer after allocating it.
+ (allocated_variable_expand_for_file): Don't use
+ {save,restore}_variable_output. Do it by hand instead, keeping
+ state on the stack instead of malloc'ing it.
+ (allocated_variable_expand): Removed.
+ * variable.h (allocated_variable_expand): Define here as macro.
+ (variable_buffer_output, initialize_variable_output,
+ save_variable_output, restore_variable_output): Removed decls.
+
+ * read.c (conditional_line): For an if cmd, if any elt of the
+ conditionals stack is ignoring, just push a new level that ignores
+ and return 1; don't evaluate the condition.
+
+Thu Jun 4 21:01:20 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (main): Put #ifdef's around frobbing SIGSYS and SIGBUS.
+
+ * job.c (getdtablesize): Don't declare or #define if already #define'd.
+
+Wed Jun 3 23:42:36 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * file.c (snap_deps): If `.EXPORT_ALL_VARIABLES' is a target, set
+ export_all_variables.
+ * make.texinfo (Variables/Recursion): Document .EXPORT_ALL_VARIABLES.
+
+Tue Jun 2 21:08:35 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.13.
+
+ * commands.c (set_file_variables): Calculate length for ^D and ?D
+ individually, making sure to give them at least enough space for "./".
+
+ * make.h [CRAY]: #define signal to bsdsignal.
+
+ * default.c (default_variables) [CRAY]: Define PC, SEGLDR,
+ CF77PPFLAGS, CF77PP, CFT, CF, and FC.
+
+ * arscan.c (AR_HDR_SIZE): Define to sizeof (struct ar_hdr), if it
+ wasn't defined by <ar.h>.
+
+Thu May 28 00:56:53 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.12.
+
+Tue May 26 01:26:30 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * rule.c (new_pattern_rule): Initialize LASTRULE to nil, not
+ pattern_rules.
+
+Mon May 25 19:02:15 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (decode_switches): Initialize all the long_option elt members.
+
+Thu May 21 16:34:24 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * make.texinfo (Text Functions): Correct filter-out description.
+
+Tue May 19 20:50:01 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * compatMakefile (realclean): Don't remove backup files.
+
+ * main.c (decode_switches): Allocate ARGC+1 elts in `other_args'.
+
+Sun May 17 16:38:48 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.62.11.
+
+Thu May 14 16:42:33 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * job.c (reap_children): Don't die if wait returns EINTR.
+
+Wed May 13 18:28:25 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c (reap_children): Always run the next command for a
+ successful target. If we are going to die, we don't want to leave
+ the target partially made.
+
+Tue May 12 00:39:19 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): After loop, if we only
+ have one word, check it for being a shell command.
+
+ * main.c (decode_switches): Allocate ARGC slots in other_args to
+ begin with, so we never need to worry about growing it.
+ If we get a non-option arg and POSIXLY_CORRECT is in the
+ environment, break out of the loop. After the loop, add all remaining
+ args to other_args list.
+
+ * main.c (decode_switches): For positive_int and floating switches
+ when optarg is nil, use next arg if it looks right (start with a
+ digit, or maybe decimal point for floating).
+
+ * variable.c (define_automatic_variables): Always set SHELL to
+ default if it comes from the environment. Set its export bit.
+ * make.texinfo (Environment): Document change.
+
+Mon May 11 00:32:46 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.62.10.
+
+ * compatMakefile (tags, TAGS): Use vars for cmds.
+ (ETAGS, CTAGS): Define.
+
+ * main.c (decode_switches): If a switches elt has a nil long_name,
+ make the long option name elt be "".
+ Fixed loop to not ignore all the options.
+
+ * make.texinfo (Option Summary): Added long options.
+
+ * main.c (switches): Changed -m's description to "-b".
+ (decode_switches): When printing the usage message, don't print
+ switches whose descriptions start with -.
+ When constructing the list of names for switch -C, search the
+ switches vector for switches whose descriptions are "-C".
+
+ * main.c (switches): Call -S --no-keep-going, not --dont-keep-going.
+ Call -I --include-dir, not --include-path.
+ (long_option_aliases): Added --new == -W, --assume-new == -W,
+ --assume-old == -o, --max-load == -l, --dry-run == -n, --recon == -n,
+ --makefile == -f.
+
+ * main.c (switches): Removed bogus "silent" elt.
+ (long_option_aliases): Define new var.
+ (decode_switches): Add long_option_aliases onto the end of the long
+ options vector created for getopt_long.
+ Look through long_option_aliases for extra names to list
+ in usage message.
+
+Sat May 9 00:21:05 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (log_working_directory): Fixed to properly not print the
+ leaving message when we haven't printed the entering message.
+
+Fri May 8 21:55:35 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * main.c (struct command_switch): Added elts `long_name',
+ `description', and `argdesc'.
+ (switches): Added initializers for new members.
+ (decode_switches): Rewritten to use getopt_long.
+ * compatMakefile (GETOPT, GETOPT_SRC): Define.
+ (objs, srcs): Include them.
+
+ * job.c (child_died): Renamed to dead_children; made static.
+ (child_handler): Increment dead_children instead of setting child_died.
+ (reap_children): Decrement dead_children instead of clearing
+ child_died. The point of all this is to avoid printing "waiting
+ for unfinished jobs" when we don't actually need to block.
+ This happened when multiple SIGCHLDs before reap_children was called.
+
+ * job.c (reap_children): If ERR is set, so we don't call start_job
+ on the child being reaped, instead set its command_state to
+ cs_finished.
+ (reap_children, child_handler, new_job): I added several
+ debugging printf's while fixing this. I left them in if (debug_flag)
+ because they may be useful for debugging this stuff again.
+
+Wed May 6 22:02:37 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): v_export is not 1.
+
+Mon May 4 17:27:37 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.9.
+
+ * variable.c (export_all_variables): New variable.
+ (target_environment): Export variables whose `export' member is
+ v_default if export_all_variables is set and their names are benign.
+ * variable.h: Declare export_all_variables.
+ * read.c (read_makefile): If export or unexport is given with no
+ args, set or clear export_all_variables, respectively.
+
+ * variable.c (target_environment): Exclude MAKELEVEL in the loop,
+ so it isn't duplicated when we add it at the end.
+
+Sun May 3 17:44:48 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.8.
+
+ * variable.h (struct variable): Added new member `export'.
+ * variable.c (define_variable_in_set): Initialize it to v_default.
+ (target_environment): Don't check for .NOEXPORT.
+ Export variables whose `export' member is v_default and that would
+ have been exported under .NOEXPORT, and variables whose `export'
+ member is v_export.
+ (try_variable_definition): Return the variable defined.
+ * variable.h (try_variable_definition): Changed decl.
+ * read.c (read_makefile): Recognize `export' and `unexport' directives.
+
+Fri May 1 11:39:38 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * main.c (main) [POSIX]: Reversed args to sigaddset.
+
+Thu Apr 30 17:33:32 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c [POSIX || !USG] (unblock_sigs): New fn.
+ (start_job): Block signals before forking.
+ (new_job): Unblock signals after putting the new child on the chain.
+ * main.c (main) [POSIX]: Use sigset_t fatal_signal_set instead of
+ int fatal_signal_mask.
+
+ * load.c [sgi] (LDAV_CVT): Define.
+
+Wed Apr 29 17:15:59 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.62.7.
+
+ * load.c (load_average) [sgi]: Clear the high bit of the address
+ from the symbol table before looking it up in kmem.
+
+ * misc.c (fatal, makefile_fatal): Put *** in fatal error messages.
+ (remake_file): No longer needed in message here.
+
+ * main.c (die): Call reap_children with BLOCK==1.
+
+Tue Apr 28 20:44:35 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * rule.c (freerule): Don't set LASTRULE->next if LASTRULE is nil.
+
+Sun Apr 26 15:09:51 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * rule.c (count_implicit_rule_limits): Initialize LASTRULE to nil,
+ not to head of chain. Extract next ptr before we might do
+ freerule, and use that for next iteration.
+ (freerule): Still do next ptr frobbing if LASTRULE is nil.
+
+Tue Apr 21 03:16:29 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * job.c (child_error): Removed extra %s from error msg format.
+
+ * Version 3.62.6.
+
+ * job.c (reap_children): Don't start later commands in a sequence
+ if ERR is nonzero.
+
+ * job.c (new_job): Always call reap_children with BLOCK==0 first thing.
+
+ * job.c (reap_children): New function; work that used to be done in
+ child_handler.
+ (child_died): New global var.
+ (child_handler): Now just sets child_died.
+ (wait_for_children): Removed.
+ (unknown_children_possible, block_signals, unblock_signals,
+ push_signals_blocked_p, pop_signals_blocked_p): Removed.
+ (child_execute_job): Removed call to unblock_signals.
+ (new_job): Removed calls to push_signals_blocked_p and
+ pop_signals_blocked_p.
+ * job.h: Declare reap_children, not wait_for_children.
+ * commands.c (fatal_error_signal), job.c (new_job),
+ load.c [LDAV_BASED] (wait_to_start_job), main.c (die),
+ remake.c (update_goal_chain), function.c (expand_function: `shell'):
+ Changed wait_for_children calls to reap_children.
+ Some needed to be loops to wait for all children to die.
+ * commands.c (fatal_error_signal), main.c (main,
+ log_working_directory), function.c (expand_function): Removed calls
+ to push_signals_blocked_p and pop_signals_blocked_p.
+ * job.h: Removed decls.
+
+ * job.h: Added copyright notice.
+
+Wed Apr 15 02:02:40 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (child_error): No *** for ignored error.
+
+Tue Apr 14 18:31:21 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * implicit.c (DEBUGP2): Use do ... while (0) instead of if ... else to
+ avoid compiler warnings.
+
+ * read.c (parse_file_seq): Don't remove ./ when it is followed by a
+ blank.
+
+Mon Apr 13 21:56:15 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h (DEBUGPR): Use do ... while (0) instead of if ... else to
+ avoid compiler warnings.
+
+ * remake.c (notice_finished_file): Run file_mtime on the also_make
+ files, so vpath_search can happen.
+
+ * GNUmakefile (tests): Use perl test suite from csa@sw.stratus.com.
+ (alpha-files): Include test suite tar file.
+
+Fri Apr 3 00:50:13 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * Version 3.62.5.
+
+Wed Apr 1 05:31:18 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * remake.c (update_file, update_file_1): Do check_renamed on elts
+ of dep chains when traversing them. Something unrelated might have
+ renamed one of the files the dep chain points to.
+
+ * file.c (rename_file): If FILE has been renamed, follow its
+ `renamed' ptr, so we get to the final real FILE. Using the renamed
+ ones loses because they are not in the hash table, so the removal
+ code loops infinitely.
+
+ * read.c (read_all_makefiles): Clobber null terminator into
+ MAKEFILES expansion, so string passed to read_makefile is properly
+ terminated.
+
+Mon Mar 30 20:18:02 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * commands.c (set_file_variables): $* for archive member with
+ explicit cmds is stem of member, not of whole `lib(member)'.
+
+Thu Mar 26 15:24:38 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.62.4.
+
+Tue Mar 24 05:20:51 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * rule.c (new_pattern_rule): Rules are identical only if all their
+ targets match (regardless of order).
+
+Wed Mar 11 13:49:54 1992 Roland McGrath (roland@geech.gnu.ai.mit.edu)
+
+ * remake.c (remake_file): Changed error "no way to make" to "no
+ rule to make". Fiat Hugh.
+
+ * make.texinfo (Last Resort): Describe %:: rules and new .DEFAULT
+ behavior.
+
+ * remake.c (update_file_1): Only use .DEFAULT cmds if FILE is not a
+ target.
+
+Tue Mar 10 18:13:13 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * remote-stub.c, remote-cstms.c (start_remote_job): Take new arg,
+ environment to pass to child.
+ * job.c (start_job): Pass it.
+
+Mon Mar 9 19:00:11 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * file.c (enter_file): Also strip ./s here, to get command-line
+ target names.
+
+ * remote-cstms.c: Add comment telling people to leave me alone.
+
+ * compatMakefile (manpage install): Remove target before copying.
+
+Tue Mar 3 18:43:21 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.texinfo (Missing): Renamed to "Incompatibilities and ...".
+ Added paragraph describing $? incompatibility with Unix and POSIX.2.
+
+Sun Mar 1 15:50:54 1992 Roland McGrath (roland@nutrimat.gnu.ai.mit.edu)
+
+ * function.c (expand_function: `shell'): Don't declare fork or pipe.
+ Use vfork instead of fork.
+
+Tue Feb 25 22:05:32 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * make.texinfo (Chained Rules): Clarify .PRECIOUS to save
+ intermediate files.
+
+ * load.c [sun] (LDAV_CVT): Define to divide by FSCALE.
+
+Sun Feb 16 02:05:16 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * Version 3.62.3.
+
+Sat Feb 15 17:12:20 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * compatMakefile (makeinfo): Use emacs batch-texinfo-format fn.
+
+Fri Feb 14 00:11:55 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Correctly handle define & endef in ifdefs.
+
+ * read.c (record_files): Pass arg for %s in error msg.
+
+ * main.c (main) [__IBMR2, POSIX]: Use correct (a la USGr3) setvbuf
+ call.
+
+Wed Feb 12 12:07:39 1992 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * make.texinfo (Libraries/Search): Say it does /usr/local/lib too.
+
+Sun Feb 9 23:06:24 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * read.c (read_makefile): Check for extraneous `endef' when ignoring.
+
+Thu Feb 6 16:15:48 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * Version 3.62.2.
+
+Tue Feb 4 20:04:46 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Correctly ignore
+ whitespace after backslash-NL.
+
+Fri Jan 31 18:30:05 1992 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * compatMakefile: Ignore errors from chgrp and chmod when installing.
+
+Wed Jan 29 18:13:30 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * main.c (main): When setting MAKELEVEL in the env to re-exec,
+ allocate space so as not to clobber past the end of the old string.
+
+ * make.h [HAVE_ALLOCA_H]: Include <alloca.h>
+ * compatMakefile (defines): Document HAVE_ALLOCA_H.
+
+Mon Jan 20 13:40:05 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * make.h [VFORK_MISSING]: Use fork instead.
+ * compatMakefile (defines): Document same.
+
+ * job.c (construct_command_argv_internal): Don't create an empty
+ arg if backslash-NL is at beginning of word.
+
+Sun Jan 19 16:26:53 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * main.c [DGUX]: Call setvbuf as for USGr3.
+
+ * job.c (construct_command_argv_internal): Notice correctly that
+ backslash-NL is the end of the arg (because it is replaced with a
+ space).
+
+Thu Jan 16 18:42:38 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): If SHELL is nil, set it
+ to default_shell before proceeding.
+
+ * make.h [sgi]: No alloca.h, after all.
+
+Wed Jan 15 12:30:04 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * read.c (multi_glob): Cons up the chain of the results of glob
+ from back to front, so it comes out in forward order.
+
+ * job.c (construct_command_argv_internal): Don't eat char following
+ backslash-NL.
+
+Mon Jan 13 19:16:56 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * Version 3.62.1.
+
+ * default.c (default_variables) [ultrix]: GET=get, like USG.
+
+ * job.c (construct_command_argv_internal): Remove tabs following
+ backslash-NL combos in the input line, so they don't show up when
+ that line is printed.
+
+ * read.c (read_makefile): Don't collapse_continuations the line on
+ input; do it on the copy we do remove_comments on.
+ For rule lines, collapse_continuations the line after chopping
+ ";cmds" off the end, so we don't eat conts in the cmds.
+ Give error for ";cmds" with no rule.
+ * job.c (construct_command_argv_internal): Eat backslash-NL combos
+ when constructing the line to recurse on for slow, too.
+
+Sat Jan 11 02:20:27 1992 Roland McGrath (roland@albert.gnu.ai.mit.edu)
+
+ * file.c (enter_file): Don't strip leading `./'s.
+ * read.c (parse_file_seq): Take new arg STRIP; if nonzero, do it here.
+ * default.c (set_default_suffixes), function.c (string_glob),
+ read.c (read_makefile), rule.c (install_pattern_rule): Change callers.
+
+ * default.c (default_variables) [_IBMR2]: FC=xlf
+
+ * job.c (construct_command_argv_internal): Turn backslash-NL and
+ following whitespace into a single space, rather than just eating
+ the backslash.
+
+ * make.texinfo (Copying): @include gpl.texinfo, rather than
+ duplicating its contents.
+
+Fri Nov 8 20:06:03 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Make sure not to bother
+ processing an empty line.
+
+ * Version 3.62.0.
+
+ * job.c (construct_command_argv_internal): Always recurse for slow;
+ simple case didn't handle finding newlines.
+
+Tue Nov 5 18:51:10 1991 Roland McGrath (roland@wookumz.gnu.ai.mit.edu)
+
+ * job.c (construct_command_argv_internal): Set RESTP properly when
+ slow; don't \ify past a newline.
+
+Fri Nov 1 19:34:28 1991 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
+
+ * make.h [sgi]: #include <alloca.h>.
+
+
+
+See ChangeLog.1, available in the Git repository at:
+
+ http://git.savannah.gnu.org/cgit/make.git/tree/
+
+for earlier changes.
+
+
+Copyright (C) 1991-2007 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/ChangeLog.3 b/ChangeLog.3
new file mode 100644
index 0000000..5fcf273
--- /dev/null
+++ b/ChangeLog.3
@@ -0,0 +1,5633 @@
+2013-10-09 Paul Smith <psmith@gnu.org>
+
+ Version 4.0 released.
+
+ * configure.ac: Updated for the release.
+ * NEWS: Updated for the release.
+
+ * maintMakefile (tag-release): New target to add a Git tag.
+ * read.c (eval): Typo fix.
+ * ChangeLog.1: Typo fixes.
+ * w32/subproc/sub_proc.c (process_cleanup): Typo fix.
+
+2013-10-07 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/compat/posixfcn.c (tmpfile): Move declaration of h before
+ the first executable statement. Reported by Gisle Vanem
+ <gvanem@yahoo.no>.
+
+2013-10-05 Paul Smith <psmith@gnu.org>
+
+ * makeint.h (MAP_USERFUNC): A new map type for function names.
+ * main.c (initialize_stopchar_map): Set up the function name map.
+
+ * gnumake.h (gmk_func_ptr): Define a type for function pointers.
+ (gmk_add_function): Convert the last argument to FLAGS.
+ (GMK_FUNC_*): Define flags for the function. Change the default
+ behavior to "expand" since that's the most common one.
+
+ * function.c (function_table_entry): Use new function pointer type.
+ (lookup_function): Accept any valid function name character based
+ on the MAP_USERFUNC values.
+ (define_new_function): Use the new calling signature. Verify that
+ registered functions have valid names.
+
+ * guile.c (guile_gmake_setup): Use new calling signatures.
+ * loadapi.c (gmk_add_function): Ditto.
+ * variable.h (define_new_function): Ditto.
+
+ * doc/make.texi (Loaded Object API): Make the registered function
+ API documentation more clear.
+
+2013-10-03 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (abspath): Reset root_len to one for Cygwin only when
+ HAVE_DOS_PATHS is defined. Suggested by Christopher Faylor.
+
+2013-10-02 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/compat/posixfcn.c (tmpfile): New function, a replacement for
+ the Windows libc version.
+
+ Fix $abspath on Cygwin when HAVE_DOS_PATHS is in effect.
+ * function.c (IS_ABSOLUTE) [__CYGWIN__]: Special definition for
+ Cygwin.
+ (abspath) [__CYGWIN__]: Reset root_len to 1 if the absolute file
+ name has the Posix /foo/bar form.
+ [HAVE_DOS_PATHS]: Use root_len instead of hard-coded 2.
+
+2013-10-01 Paul Smith <psmith@gnu.org>
+
+ * configure.ac: Update version to 3.99.93.
+ * NEWS: Ditto.
+
+2013-09-30 Paul Smith <psmith@gnu.org>
+
+ * guile.c: Portability fixes for Guile 1.8.
+
+2013-09-29 Paul Smith <psmith@gnu.org>
+
+ * output.c (output_dump): Always write Enter/Leave messages to stdio.
+ (log_working_directory): This now always writes to stdio, so we
+ don't need the struct output parameter anymore.
+ (output_start): Show the working directory when output_sync is not
+ set or is recursive.
+ * main.c (main): Ensure the special "already shown Enter message"
+ token is removed from MAKE_RESTARTS before the user can see it.
+ * function.c (func_shell_base): If the output_context stderr
+ exists but is invalid, write to the real stderr.
+ Fixes suggested by Frank Heckenbach <f.heckenbach@fh-soft.de>.
+
+ * output.c: Guard unistd.h inclusion, add io.h.
+ * gnumake.h: Move GMK_EXPORT before the declarations.
+ * make_msvc_net2003.vcproj: Add missing files.
+ Changes for MSVC suggested by Gerte Hoogewerf <g.hoogewerf@gmail.com>
+
+ * function.c (func_shell_base) [EMX]: Fix EMX support for output-sync.
+ * job.c (child_execute_job) [EMX]: Ditto.
+ * job.h (child_execute_job) [EMX]: Ditto.
+ * w32/compat/posixfcn.c: Invert the test for NO_OUTPUT_SYNC.
+
+ * guile.c (GSUBR_TYPE): Pre-2.0 Guile doesn't provide a typedef
+ for gsubr pointers. Create one.
+ (guile_define_module): Use it.
+ (internal_guile_eval): Force UTF-8 encoding for Guile strings.
+
+ * main.c (main): Clear GNUMAKEFLAGS after parsing, to avoid
+ proliferation of options.
+ * NEWS: Document it.
+ * doc/make.texi (Options/Recursion): Ditto.
+
+2013-09-23 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/compat/posixfcn.c: Fix the forgotten OUTPUT_SYNC conditional.
+
+ * job.h: Ditto, but in a comment.
+
+2013-09-22 Paul Smith <psmith@gnu.org>
+
+ * configure.ac: Update version to 3.99.92.
+ * NEWS: Ditto.
+
+ * implicit.c (pattern_search): After second expansion be sure to
+ handle order-only markers inside the expansion properly.
+ Fixes Savannah bug #31155.
+
+ * guile.c (guile_define_module): Technically a void* cannot
+ contain a pointer-to-function and some compilers warn about this.
+ Cast the function pointers.
+ * load.c (load_object): Ditto.
+
+ * read.c (eval): If load_file() returns -1, don't add this to the
+ "to be rebuilt" list.
+ * doc/make.texi (load Directive): Document it.
+
+ * guile.c (guile_gmake_setup): Don't initialize Guile so early.
+ (func_guile): Lazily initialize Guile the first time the $(guile ..)
+ function is invoked. Guile can steal file descriptors which
+ confuses our jobserver FD checking, so we don't want to initialize
+ it before we have to.
+
+ VMS port updates by Hartmut Becker <becker.ismaning@freenet.de>
+
+ * makefile.com: Add output to the filelist.
+ * output.c (va_copy): Add an implementation of this macro for VMS.
+ * commands.c: Ensure filedef.h is #included before dep.h.
+ * dir.c: Ditto.
+ * file.c: Ditto.
+ * guile.c: Ditto.
+ * main.c: Ditto.
+ * misc.c: Ditto.
+ * read.c: Ditto.
+ * rule.c: Ditto.
+ * variable.c: Ditto.
+ * readme.vms: Renamed to README.VMS and updates for this release.
+ * Makefile.am: Ditto.
+ * NEWS: Ditto.
+ * README.template: Ditto.
+ * Makefile.DOS.template: Ditto.
+
+2013-09-21 Paul Smith <psmith@gnu.org>
+
+ * maintMakefile (check-alt-config): Create a target to test
+ alternative configurations. Each one will build make with a
+ different configuration then run the test suite.
+
+ Invert the output-sync #define to NO_OUTPUT_SYNC
+
+ * configure.ac: Don't set OUTPUT_SYNC.
+ * makeint.h: Ditto.
+ * main.c: Use NO_OUTPUT_SYNC instead of OUTPUT_SYNC.
+ * output.c: Ditto.
+ * output.h: Ditto.
+ * job.h: Ditto.
+ * job.c: Ditto.
+ * config.ami.template: Set NO_OUTPUT_SYNC.
+ * config.h-vms.template: Ditto.
+ * config.h.W32.template: Ditto.
+ * configh.dos.template: Ditto.
+
+ Output generated while reading makefiles should be synced.
+
+ * main.c (make_sync): Define a context for syncing while reading
+ makefiles and other top-level operations.
+ (main): If we request syncing, enable it while we are parsing
+ options, reading makefiles, etc. to capture that output. Just
+ before we start to run rules, dump the output if any.
+ (die): Dump any output we've been syncing before we die
+ * output.h (OUTPUT_SET): Disable output_context if not syncout.
+
+ Stderr generated from shell functions in recipes should be synced.
+
+ * job.h (FD_STDIN, FD_STDOUT, FD_STDERR): Create new macros to
+ avoid magic numbers.
+ (child_execute_job): Take a FD for stderr.
+ * job.c (child_execute_job): Handle STDERR FD's in addition to
+ stdin and stdout.
+ (start_job_command): Call child_execute_job() with the new STDERR
+ parameter. Instead of performing the dup() here, send it to
+ child_execute_job() where it's already being done.
+ * function.c (func_shell_base): Pass the OUTPUT_CONTEXT stderr to
+ child_execute_job() if it's set, otherwise FD_STDERR.
+ * main.c (main): Pass FD_STDERR to child_execute_job().
+
+2013-09-19 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Set MAKE_RESTARTS to negative before re-exec if
+ we've already generated an "Entering" message. If we are started
+ and notice that MAKE_RESTARTS is negative, assume we already wrote
+ "Entering" and don't write it again.
+
+2013-09-18 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Set starting_directory before we write any
+ errors. Fixes Savannah bug #40043.
+
+2013-09-16 Eli Zaretskii <eliz@gnu.org>
+
+ * output.c [WINDOWS32]: Include windows.h and sub_proc.h, to avoid
+ compiler warnings for CLOSE_ON_EXEC.
+
+2013-09-16 Paul Smith <psmith@gnu.org>
+
+ * configure.ac: Update version to 3.99.91.
+ * NEWS: Ditto.
+
+2013-09-15 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Error Messages): Add a bit more info to the
+ section on static pattern errors, since they're common.
+ Fixes Savannah bug #31326.
+
+ * read.c (eval_makefile): If the file open fails with an
+ unrecoverable error, stop now rather than trying to make it.
+ Fixes Savannah bug #27374.
+
+ * main.c (main): Perform the validation of the jobserver FDs
+ early, before we read makefiles, to ensure that something hasn't
+ opened and used those FDs for some other reason.
+ Fixes Savannah bug #39934.
+
+ * main.c (main): Don't set MAKEFLAGS in the environment when we
+ restart. We have the original command line flags so keep the
+ original MAKEFLAGS settings as well.
+ Fixes Savannah bug #39203.
+
+2013-09-14 Paul Smith <psmith@gnu.org>
+
+ * main.c (decode_debug_flags): Add support for the "n" flag to
+ disable all debugging.
+ * make.1: Document the "n" (none) flag.
+ * doc/make.texi (Options Summary): Ditto.
+ * NEWS: Ditto.
+ Fixes Savannah bug #35248.
+
+ * misc.c (close_stdout): Move to output.c.
+ * main.c (main): Move atexit call to output_init().
+ * makeint.h: Remove close_stdout() declaration.
+ * output.c (output_init): Add close_stdout at exit only if it's open.
+ Fixes Savannah bug #33134. Suggested by David Boyce <dsb@boyski.com>.
+
+2013-09-14 Paul Smith <psmith@gnu.org>
+
+ * misc.c (set_append_mode, open_tmpfd, open_tmpfile): Move to output.c.
+ * misc.h: Ditto.
+ * output.h: Ditto.
+ * main.c (main): Move stdio init into output.c:output_init().
+ Change open_tmpfile() to output_tmpfile().
+ * output.c: Rename open_*() to output_*(). set_append_mode() and
+ open_tmpfd() are static.
+ (_outputs, log_working_directory): Accept a struct output and
+ print to that rather than the global context.
+ (output_dump): In recurse mode print enter/leave once for the
+ whole makefile.
+ (output_init): Initialize this processes stdio as well as child's.
+
+ * vmsjobs.c: Reformat to be closer to convention.
+
+2013-09-12 Paul Smith <psmith@gnu.org>
+
+ Rework output to handle synchronization and directory logging more
+ reliably.
+
+ * output.c: New file. Implement lazy synchronization and
+ directory logging so that we manage them "just in time", and the
+ destination of the output is set via a global state variable.
+ * output.h: New file.
+ * function.c (func_shell_base): Ensure the output is set up before
+ running a shell command, in case it writes to stderr.
+ (func_error): Use outputs() to generate output.
+ * job.h (struct child): Add struct output to track the child's output.
+ * job.c: Use struct output in the child structure to track output.
+ (child_out, sync_init, assign_child_tempfiles, pump_from_tmp)
+ (acquire_semaphore, release_semaphore, sync_output): Move most of
+ the output_sync handling to output.c.
+ (child_error): Set output, then use simple message() and error()
+ not _s versions.
+ * main.c (log_working_directory): Moved to output.c
+ (trace_option, decode_trace_flags) Remove. Remove support for
+ different trace modes; we don't use it anymore.
+ (die) Invoke output_close() before we exit.
+ * misc.c (message_s, error_s): Removed; no longer needed.
+ (message, error, fatal, perror_with_name, pfatal_with_name): Moved
+ to output.c.
+ * makeint.h: Remove message_s(), error_s(), and
+ log_working_directory(). Remove the TRACE_* macros.
+ * doc/make.texi: Enhance documentation for output sync, and remove
+ MODE assignment for --trace.
+ * make.1: Remove MODE assignment for --trace.
+ * Makefile.am: Add new files.
+ * NMakefile.template: Ditto.
+ * SMakefile.template: Ditto.
+ * build_w32.bat: Ditto.
+ * dosbuild.bat: Ditto.
+ * make.lnk: Ditto.
+ * make_nsvc_net2003.vcproj: Ditto.
+ * makefile.vms: Ditto.
+ * po/POTFILES.in: Ditto.
+
+2013-08-22 Petr Machata <pmachata@redhat.com>
+
+ * function.c (func_shell_base): Get rid of any avoidable limit on
+ stack size for processes spawned via $(shell).
+
+2013-07-22 Paul Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Use PARSE_SIMPLE_SEQ() even for
+ non-second expansion prerequisites, to handle globbing in patterns.
+ Fixes Savannah bug #39310.
+
+ * dep.h (PARSE_SIMPLE_SEQ): Macro for simple file sequence parsing.
+ * default.c (set_default_suffixes): Use it.
+ * file.c (split_prereqs): Ditto.
+ * main.c (main): Ditto.
+ * read.c (eval): Ditto.
+ * rule.c (install_pattern_rule): Ditto.
+ * file.c (split_prereqs): Use PARSEFS_NONE instead of 0.
+
+2013-07-21 Paul Smith <psmith@gnu.org>
+
+ Cleanups detected by cppcheck. Fixes Savannah bug #39158.
+ * arscan.c (ar_scan): Reduce the scope of local variables.
+ * dir.c (vms_hash): Ditto.
+ (find_directory): Ditto.
+ (file_impossible_p): Ditto.
+ * expand.c (variable_expand_string): Ditto.
+ * function.c (func_sort): Ditto.
+ (func_and): Ditto.
+ * job.c (reap_children): Ditto.
+ (exec_command): Ditto.
+ * main.c (main): Ditto.
+ * misc.c (collapse_continuations): Ditto.
+ * read.c (eval): Ditto.
+ (parse_file_seq): Ditto.
+ * vpath.c (gpath_search): Ditto.
+ (selective_vpath_search): Ditto.
+ * job.c (is_bourne_compatible_shell): Simplify for non-Windows systems.
+ * remake.c (f_mtime): Remove duplicate test.
+ * signame.c (strsignal): Fix bogus conditional.
+
+ * job.c (assign_child_tempfiles): Assign OUTFD to -1 for safety.
+ (start_job_command): Don't test output_sync and sync_cmd: redundant.
+ Changes suggested by Frank Heckenbach <f.heckenbach@fh-soft.de>.
+
+2013-07-14 Paul Smith <psmith@gnu.org>
+
+ * filedef.h (update_status): Convert UPDATE_STATUS from a char to
+ an enumeration. Some systems declare "char" to be "unsigned"
+ which broke the code (which expected to be able to use -1 as a
+ flag). Using magic values was unpleasant, so rather than just
+ force "signed char" I reworked it to use an enum.
+
+ * dep.h (update_goal_chain): Return an update_status value not int.
+ * remake.c (touch_file): Ditto.
+ (update_goal_chain): Track the update_status enum.
+
+ * file.c (enter_file): Use new enumeration values with update_status.
+ (remove_intermediates): Ditto.
+ (print_file): Ditto.
+ * commands.c (execute_file_commands): Ditto.
+ * job.c (reap_children): Ditto.
+ (start_job_command): Ditto.
+ (start_waiting_job): Ditto.
+ * main.c (main): Ditto.
+ * remake.c (update_file): Ditto.
+ (complain): Ditto.
+ (update_file_1): Ditto.
+ (notice_finished_file): Ditto.
+ (remake_file): Ditto.
+ * vmsjobs.c (vmsHandleChildTerm): Ditto.
+
+2013-07-09 Paul Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Keep a local copy of the number of
+ deps in deplist: the global max might change due to recursion.
+ Fixes a bug reported by Martin d'Anjou <martin.danjou14@gmail.com>.
+
+2013-06-28 Paul Smith <psmith@gnu.org>
+
+ * misc.c (set_append_mode): Set the O_APPEND flag on a file descriptor.
+ (open_tmpfd): Set append mode on the temporary file descriptor.
+ * main.c (main): Set append mode on stdout and stderr.
+ * makeint.h (set_append_mode): Declare it.
+
+2013-06-22 Eli Zaretskii <eliz@gnu.org>
+
+ * build_w32.bat (LinkGCC): Prevent a comment from being displayed
+ at build time.
+
+ * job.c (construct_command_argv_internal) [WINDOWS32]: Use
+ case-insensitive comparison with internal commands of non-Unix
+ shells.
+
+ * main.c (find_and_set_default_shell): Don't use file_exists_p or
+ dir_file_exists_p, as those call readdir, which can fail if PATH
+ includes directories with non-ASCII characters, and that would
+ cause Make to fail at startup with confusing diagnostics. See
+ https://sourceforge.net/mailarchive/message.php?msg_id=30846737
+ for the details.
+
+2013-06-22 Paul Smith <psmith@gnu.org>
+
+ Improve performance by using a character map to determine where we
+ want to stop searching strings, rather than discrete comparisons.
+
+ * read.c (find_char_unquote): Pass a stop map instead of various
+ flags and use that to check when to stop parsing the string.
+ (eval): Use the new find_char_unquote() calling signature.
+ (remove_comments): Ditto.
+ (unescape_char): Ditto.
+ (find_percent_cached): Ditto.
+ (parse_file_seq): Use a stop-map flag.
+ * main.c (stopchar_map): Character map definition.
+ (initialize_stopchar_map): Initialize the map definition.
+ (main): Invoke the map initialization function.
+ * misc.c (end_of_token_w32): Remove unused function.
+ * dir.c (dosify): Use STOP_SET to check for stop chars.
+ * main.c (main): Ditto.
+ * misc.c (end_of_token): Ditto.
+ * function.c (subst_expand): Ditto.
+ (func_notdir_suffix): Ditto.
+ (func_basename_dir): Ditto.
+ (abspath): Ditto.
+ * job.c (is_bourne_compatible_shell): Ditto.
+ * variable.c (parse_variable_definition): Ditto.
+ * read.c (eval): Ditto.
+ (conditional_line): Ditto.
+ (find_percent_cached): Ditto.
+ * dep.h (PARSE_FILE_SEQ): Update function declaration.
+ * default.c (set_default_suffixes): Update PARSE_FILE_SEQ() call.
+ * file.c (split_prereqs): Ditto.
+ * function.c (string_glob): Ditto.
+ * implicit.c (pattern_search): Ditto.
+ * rule.c (install_pattern_rule): Ditto.
+ * main.c (main): Ditto.
+
+2013-06-21 Paul Smith <psmith@gnu.org>
+
+ * main.c (verify_flag): Global variable to determine whether to
+ verify the database or not.
+ (decode_debug_flags): If debug mode, enable verify_flag.
+ (main): If MAKE_MAINTAINER_MODE, enable verify_flag, otherwise not.
+ (die): Only verify the database if verify_flag is set.
+ * file.c (enter_file): Don't check caching unless verify_flag.
+ * makeint.h: Export verify_flag.
+
+2013-05-27 Paul Smith <psmith@gnu.org>
+
+ * variable.c (define_automatic_variables): Create a new variable
+ MAKE_HOST.
+
+2013-05-27 Hartmut Becker <becker.ismaning@freenet.de>
+
+ * function.c (func_shell_base) [VMS]: Support VMS.
+ * makefile.com [VMS]: Ditto.
+ * makefile.vms [VMS]: Ditto.
+ * makeint.h [VMS]: Ditto.
+ * vmsjobs.c [VMS]: Ditto.
+ * job.h: Define RECORD_SYNC_MUTEX() when OUTPUT_SYNC is not set.
+ * load.c (unload_file): Fix signature if MAKE_LOAD is not set.
+
+2013-05-26 Paul Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): Ensure that archive file names are in the
+ string cache. Fixes Savannah bug #38442.
+
+ * read.c (readline): To be safe, move the entire buffer if we
+ detect a CR. Fixes Savannah bug #38945.
+
+ * job.c (new_job): Compare OUT to the beginning of the OUT
+ var/function, not IN. Fixes Savannah bug #39035.
+
+2013-05-22 Paul Smith <psmith@gnu.org>
+
+ * main.c (switches[]): Order switches so simple flags all come first.
+ (define_makeflags): Rework to make option passing more
+ reliable and the code less tricksy. Ensure simple flags are kept
+ in the initial batch of flags. Do not allow any flags with
+ options in that batch. If there are only non-simple flags MAKEFLAGS
+ begins with ' '.
+ (print_data_base): Print the version. Fixes part of Savannah #35336.
+
+ * read.c (eval_buffer): Initialize lineno.
+
+2013-05-18 Alexey Pavlov <alexpux@gmail.com> (tiny change)
+
+ * w32/Makefile.am (libw32_a_SOURCES): Add compat/posixfcn.c.
+
+ * configure.ac (OUTPUT_SYNC): Define for mingw32 target.
+
+ * job.c (construct_command_argv_internal) <sh_cmds_dos>
+ [WINDOWS32]: Add "move". Fixes Savannah bug #30714.
+
+ * guile.c: Move inclusion of makeint.h before gnumake.h. This
+ order must be observed when building Make, because gnumake.h must
+ be included with GMK_BUILDING_MAKE defined, which makeint.h
+ already does. Otherwise, the linker will look for, and fail to
+ find, gmk_* functions in some external dynamic library.
+
+2013-05-17 Benno Schulenberg <bensberg@justemail.net>
+
+ * main.c (decode_output_sync_flags): Fix output message.
+ * read.c (EXTRANEOUS): Ditto.
+ (record_files): Ditto.
+ * remake.c (update_file_1): Ditto.
+
+2013-05-17 Eli Zaretskii <eliz@gnu.org>
+
+ * main.c (prepare_mutex_handle_string): Define conditioned on
+ OUTPUT_SYNC.
+
+ * build_w32.bat: Copy config.h.W32 to config.h regardless of
+ whether or not we are building from SCM.
+
+2013-05-17 Paul Smith <psmith@gnu.org>
+
+ * configure.ac: Update version to 3.99.90.
+ * NEWS: Ditto.
+
+ * Source (*.[ch]): Remove TABs, use GNU coding styles.
+
+ * ALL: Update copyright.
+
+ * hash.c (CALLOC): Use xcalloc() to handle out of memory errors.
+
+ * makeint.h: Prototype new unload_file() function.
+ * load.c (unload_file): Create a function to unload a file.
+ (struct load_list): Type to remember loaded objects.
+ (loaded_syms): Global variable of remembered loaded objects so we
+ can unload them later. We don't have to remove from the list
+ because the only time we unload is if we're about to re-exec.
+ (load_object): Remove unneeded extra DLP argument.
+ (load_file): Remove unneeded extra DLP argument.
+ * filedef.h (struct file): Remove the DLP pointer and add the
+ LOADED bit flag. Saves 32/64 bytes per file, as this pointer is
+ almost never needed.
+ * read.c (eval): Set the new LOADED bit flag on the file.
+ * file.c (rehash_file): Merge the loaded bitfield.
+ * commands.c (execute_file_commands): Call unload_file() instead
+ of dlclose() directly.
+
+2013-05-14 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Loaded Object API): Document the requirement for
+ the plugin_is_GPL_compatible symbol.
+ * load.c (load_object): Check for plugin_is_GPL_compatible symbol.
+
+2013-05-13 Paul Smith <psmith@gnu.org>
+
+ * filedef.h (struct file): Add a builtin flag.
+ * file.c (enter_file): Unset the builtin flag.
+ (rehash_file): Ditto.
+ (print_file): Don't print builtin files if we've omitted them.
+ * default.c (undefine_default_variables): New function: go through
+ the default variables and undefine them.
+ (set_default_suffixes): Mark these suffix rules as builtin.
+ * makeint.h: Prototype.
+ * main.c (main): Handle addition of -r and -R to MAKEFLAGS in the
+ makefile. Fixes Savannah bug #20501.
+
+ * main.c (define_makeflags): Assign o_env_override level to
+ MAKEFLAGS to ensure it's set even in the presence of -e.
+ Fixes Savannah bug #2216.
+
+ * makeint.h (TRACE_NONE, TRACE_RULE, TRACE_DIRECTORY): Define
+ constants for the trace mode.
+ * main.c: Add new --trace mode parsing.
+ (decode_trace_flags): New function.
+ (decode_switches): Call it.
+ (define_makeflags): Fix a bug with long-name options.
+ * misc.c (fatal): Remove special output-sync handling.
+ * make.1: Document new --trace mode flags.
+ * doc/make.texi (Options Summary): Ditto.
+
+2013-05-11 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (child_out): Output the newline following the message
+ before fllush-ing the stream. Avoids displaying the following
+ failure message, which goes to stderr, on the same line.
+
+2013-05-06 Eli Zaretskii <eliz@gnu.org>
+
+ * gnumake.h (GMK_EXPORT) [_WIN32]: Move the dllexport declaration
+ here from makeint.h.
+
+ * makeint.h (GMK_BUILDING_MAKE) [WINDOWS32]: Define before
+ including gnumake.h.
+
+ * doc/make.texi (Loaded Object Example): Add a note about building
+ shared objects on MS-Windows.
+
+2013-05-05 Paul Smith <psmith@gnu.org>
+
+ * makeint.h (OUTPUT_SYNC_LINE, OUTPUT_SYNC_RECURSE): Rename
+ output-sync options "job" to "line" and "make" to "recurse".
+ * main.c (decode_output_sync_flags): Ditto.
+ * job.c (reap_children): Ditto.
+ (start_job_command): Ditto.
+ * make.1: Ditto.
+ * doc/make.texi (Parallel Output): Ditto.
+
+ * job.c (child_out): Write newlines explicitly, and don't do
+ anything if the message is empty.
+ (sync_output): Put working dir messages around stdout AND stderr.
+ (start_job_command): Move the tmp file assignment earlier. After
+ we do it, write the command line to the temp file to get the order
+ correct.
+
+ * misc.c (message): Remove special handling for output_sync.
+ (error): Ditto.
+
+2013-05-04 Paul Smith <psmith@gnu.org>
+
+ * loadapi.c (gmk_alloc): New function.
+ * gnumake.h: Add gmk_alloc(). Clean GMK_EXPORT a bit to avoid MAIN.
+ * makeint.h (GMK_EXPORT): New handling, vs. MAIN.
+ * doc/make.texi (Loaded Object API): Add information on the memory
+ handling functions.
+ (Loaded Object Example): Create an example.
+
+ * job.c (pump_from_tmp): (Rename) Write to stdout/stderr using
+ FILE* rather than fd. It's not a good idea to mix and match.
+
+2013-05-04 Eli Zaretskii <eliz@gnu.org>
+
+ * makeint.h (ftruncate) [_MSC_VER]: Redirect to _chsize.
+ (_S_ISDIR): If not defined (MinGW64), define to S_ISDIR.
+
+2013-05-04 Paul Smith <psmith@gnu.org>
+
+ * job.c (child_out): Handle EINTR and incomplete write scenarios.
+ (sync_init): New function: separate the initialization code.
+ (assign_child_tempfiles): Remove truncation from this function,
+ (sync_output): and add it here after output is generated.
+ (reap_children): Always call sync_output() in case output_sync was
+ reset after the child started, due to error.
+ (start_job_command): Create new sync_cmd variable. Use new method
+ for initializing the handle.
+ If we're not syncing the output be sure any output we've saved is
+ dumped immediately before starting the child.
+
+2013-05-04 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (start_job_command): Make the condition for creating a
+ temporary output file be identical to the Posix code branch.
+ Suggested by Frank Heckenbach <f.heckenbach@fh-soft.de>.
+
+2013-05-03 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/sub_proc.c: Include makeint.h. Remove a private
+ incompatible prototype of xmalloc.
+ (batch_file_with_spaces): New function, detects Windows batch
+ files whose names include whitespace characters.
+ (process_begin): If exec_name is a batch file with whitespace
+ characters in its name, pass NULL as the first argument to
+ CreateProcess. This avoids weird failures due to buggy quoting by
+ CreateProcess. For the details, see the discussion starting at
+ http://lists.gnu.org/archive/html/make-w32/2013-04/msg00008.html.
+
+ * load.c (load_object, load_file): Accept an additional argument
+ DLP and return in it a pointer that can be used to unload the
+ dynamic object.
+
+ * read.c (eval): Call load_file with an additional argument, and
+ record the pointer returned there in the 'struct file' object of
+ dynamic objects in that object's 'struct file'.
+
+ * commands.c (execute_file_commands): Unload dynamic objects
+ before remaking them, to avoid failure to remake if the OS doesn't
+ allow overwriting objects that are in use.
+
+ * filedef.h (struct file): New member dlopen_ptr.
+
+ * gnumake.h (GMK_EXPORT): Define to dllexport/dllimport
+ decorations for Windows and to nothing on other platforms.
+ (gmk_eval, gmk_expand, gmk_add_function): Add GMK_EXPORT qualifier
+ to prototypes.
+
+ * makeint.h (MAIN): Define before including gnumake.h, to give
+ correct dllexport decorations to exported functions.
+ (load_file): Adjust prototype.
+
+ * loadapi.c: Don't include gnumake.h, since makeint.h already
+ includes it, and takes care of defining MAIN before doing so.
+
+ * build_w32.bat (LinkGCC): Produce an import library for functions
+ exported by Make for loadable dynamic objects.
+
+ * w32/compat/posixfcn.c (dlclose): New function.
+
+ * w32/include/dlfcn.h (dlclose): Add prototype.
+
+2013-05-01 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (start_job_command) [WINDOWS32]: Make the same fix for
+ MS-Windows as the previous commit did for Posix platforms.
+ (construct_command_argv_internal): Don't treat a backslash as an
+ escape character before whitespace, if the shell is not a Posix
+ shell. For the description of the problem, see
+ http://lists.gnu.org/archive/html/make-w32/2013-04/msg00014.html.
+
+2013-05-01 Paul Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): Don't redirect output for recursive
+ make jobs, unless we're in makefile synchronization mode.
+
+2013-04-30 Stefano Lattarini <stefano.lattarini@gmail.com> (tiny change)
+
+ build: enable the 'silent-rules' automake options
+
+ * configure.ac (AM_INIT_AUTOMAKE): Here. The future major Automake
+ version 2.0 (ETA about one, one and half year from now) will enable
+ it by default, so better prepare ourselves.
+
+2013-04-30 Stefano Lattarini <stefano.lattarini@gmail.com> (tiny change)
+
+ build: require Autoconf >= 2.62 and Automake >= 1.11.1
+
+ Older versions of those tools should be considered fully obsolete.
+ Also, GNU make already requires Gettext >= 0.18.1, which has been
+ released six months after Automake 1.11.1 and two years after
+ Autoconf 2.62; so the new requirement shouldn't be problematic
+ for people already bootstrapping GNU make from the Git repository.
+
+ * configure.ac (AC_PREREQ): Require Autoconf 2.62 or later.
+ (AM_INIT_AUTOMAKE): Require Automake 1.11.1 or later (1.11 had
+ some serious bugs, and should not be used).
+
+2013-04-30 Stefano Lattarini <stefano.lattarini@gmail.com> (tiny change)
+
+ build: get rid of 'HAVE_ANSI_COMPILER' C preprocessor conditional
+
+ GNU make already assume C89 or later throughout the codebase, and
+ that preprocessor conditional was no longer used anyway.
+
+ * configure.ac: Remove AC_DEFINE of HAVE_ANSI_COMPILER.
+ * config.ami.template: Remove #define of HAVE_ANSI_COMPILER.
+ * config.h-vms.template: Likewise.
+ * config.h.W32.template: Likewise.
+ * configh.dos.template: Likewise.
+
+2013-04-30 Stefano Lattarini <stefano.lattarini@gmail.com> (tiny change)
+
+ cosmetics: fix few innocuous typos
+
+ Most of these were found using Lucas De Marchi's 'codespell' tool.
+
+ * ChangeLog: Fix minor typos.
+ * ChangeLog.2: Likewise.
+ * README.Amiga: Likewise.
+ * TODO.private: Likewise.
+ * function.c: Likewise.
+ * glob/glob.h: Likewise.
+ * job.c: Likewise.
+ * main.c: Likewise.
+ * readme.vms: Likewise.
+ * remake.c: Likewise.
+ * tests/ChangeLog: Likewise.
+ * tests/NEWS: Likewise.
+ * tests/README: Likewise.
+ * tests/scripts/variables/private: Likewise.
+ * vmsdir.h: Likewise.
+ * signame.c: Likewise. While at it, improve line wrapping in the
+ touched comment.
+
+2013-04-29 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/include/dlfcn.h: New file.
+
+ * w32/compat/posixfcn.c: Include dlfcn.h.
+ (dlopen, dlerror, dlsym) [MAKE_LOAD]: New functions, in support of
+ dynamic loading.
+
+ * config.h.W32.template (MAKE_LOAD): Define.
+
+ * load.c (load_object) [HAVE_DOS_PATHS]: Support backslashes and
+ drive letters in file names of dynamic objects.
+
+ * job.c (construct_command_argv_internal) [WINDOWS32]: Return
+ right after generating new_argv for one_shell case. This fixes
+ the Windows build for both Unixy shell and stock Windows shells.
+
+2013-04-28 Eli Zaretskii <eliz@gnu.org>
+
+ * dir.c (local_stat) [WINDOWS32]: Use the wrapper on MS-Windows.
+ If the argument ends in "dir/.", make sure the parent dir exists
+ and is indeed a directory. Fixes Savannah bug #37065.
+
+2013-04-28 Paul Smith <psmith@gnu.org>
+
+ * makeint.h (message_s, error_s): Functions that print to strings
+ rather than directly to files.
+ * misc.c (message_s, error_s): Create them.
+ * job.c (child_error): Print error messages to the output sync
+ logs, if one exists, rather then directly to the terminal.
+ (reap_children): Move the per-line sync after child_error().
+
+ * configure.ac: Remove support for pre-ANSI variadic function calls.
+ * makeint.h: Ditto.
+ * misc.c: Ditto.
+ * config.ami.template: Ditto.
+ * config.h-vms.template: Ditto.
+ * config.h.W32.template: Ditto.
+ * configh.dos.template: Ditto.
+
+ Implement a "per-job" output synchronization option.
+
+ * main.c (decode_output_sync_flags): Recognize the new option.
+ * makeint.h (OUTPUT_SYNC_JOB): Add new values for "job"
+ * job.c (assign_child_tempfiles): In per-job mode, truncate the
+ temp file for re-use by the next job.
+ (sync_output): Don't close the temp files as we may still use them.
+ (free_child): Close the temp files here as we definitely don't
+ need them.
+ (new_job): In per-job output mode, sync_output() after each job.
+ * job.h (struct child): Avoid ifdefs.
+ * make.1: Add new options to the man page.
+ * doc/make.texi (Parallel Output): Break documentation on input
+ and output into separate sections for readability. Document the
+ new "job" and "none" modes.
+
+2013-04-27 Paul Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): Fix oneshell support
+ for non-POSIX-sh shells.
+
+ * load.c (load_object): Extract all POSIX-isms into a separate
+ function for portability.
+ (load_file): Check the .LOADED variable first and don't invoke
+ load_object() if it's already been loaded.
+
+2013-04-27 Eli Zaretskii <eliz@gnu.org>
+
+ * read.c (record_files): Pay attention to .ONESHELL in MS-Windows.
+
+ * job.c (construct_command_argv_internal): Support .ONESHELL on
+ MS-Windows, when the shell is not a Unixy shell.
+
+2013-04-27 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c: Fix compilation error on GNU/Linux due to "label at end
+ of compound statement".
+
+2013-04-27 Frank Heckenbach <f.heckenbach@fh-soft.de> (tiny change)
+
+ * job.c (sync_output): Don't discard the output if
+ acquire_semaphore fails; instead, dump the output unsynchronized.
+
+2013-04-27 Eli Zaretskii <eliz@gnu.org>
+
+ Support --output-sync on MS-Windows.
+ * w32/compat/posixfcn.c: New file, with emulations of Posix
+ functions and Posix functionality for MS-Windows.
+
+ * w32/subproc/sub_proc.c: Include io.h.
+ (process_noinherit): New function, forces a file descriptor to not
+ be inherited by child processes.
+ (process_easy): Accept two additional arguments, and use them to
+ set up the standard output and standard error handles of the child
+ process.
+
+ * w32/include/sub_proc.h (process_easy): Adjust prototype.
+ (process_noinherit): Add prototype.
+
+ * read.c [WINDOWS32]: Include windows.h and sub_proc.h.
+
+ * makeint.h (LOCALEDIR) [WINDOWS32}: Define to NULL if not
+ defined. This is needed because the MS-Windows build doesn't have
+ a canonical place for LOCALEDIR.
+ (WIN32_LEAN_AND_MEAN) [WINDOWS32]: Define, to avoid getting from
+ windows.h header too much stuff that could conflict with the code.
+
+ * main.c <sync_mutex>: New static variable.
+ <switches>: Add support for "--sync-mutex" switch.
+ (decode_output_sync_flags): Decode the --sync-mutex= switch.
+ (prepare_mutex_handle_string) [WINDOWS32]: New function.
+ (main): Add "output-sync" to .FEATURES.
+
+ * job.h (CLOSE_ON_EXEC) [WINDOWS32]: Define to call
+ process_noinherit.
+ (F_GETFD, F_SETLKW, F_WRLCK, F_UNLCK, struct flock) [WINDOWS32]:
+ New macros.
+ (RECORD_SYNC_MUTEX): New macro, a no-op for Posix platforms.
+ (sync_handle_t): New typedef.
+
+ * job.c <sync_handle>: Change type to sync_handle_t.
+ (FD_NOT_EMPTY): Seek to the file's end. Suggested by Frank
+ Heckenbach <f.heckenbach@fh-soft.de>.
+ (pump_from_tmp_fd) [WINDOWS32]: Switch to_fd to binary mode for
+ the duration of this function, and then change back before
+ returning.
+ (start_job_command) [WINDOWS32]: Support output_sync mode on
+ MS-Windows. Use a system-wide mutex instead of locking
+ stdout/stderr. Call process_easy with two additional arguments:
+ child->outfd and child->errfd.
+ (exec_command) [WINDOWS32]: Pass two additional arguments, both
+ -1, to process_easy, to adjust for the changed function signature.
+
+ * function.c (windows32_openpipe) [WINDOWS32]: This function now
+ returns an int, which is -1 if it fails and zero otherwise. It
+ also calls 'error' instead of 'fatal', to avoid exiting
+ prematurely.
+ (func_shell_base) [WINDOWS32]: Call perror_with_name if
+ windows32_openpipe fails, now that it always returns. This avoids
+ a compiler warning that error_prefix is not used in the MS-Windows
+ build.
+
+ * config.h.W32.template (OUTPUT_SYNC): Define.
+
+ * build_w32.bat: Add w32/compat/posixfcn.c to compilation and
+ linking commands.
+
+2013-04-20 Stefano Lattarini <stefano.lattarini@gmail.com> (tiny change)
+
+ * README.git: Our autoconf input file is 'configure.ac', not
+ 'configure.in'. Adjust accordingly.
+ * build_w32.bat: Likewise.
+ * config.h-vms.template: Likewise.
+ * Makefile.DOS.template: Likewise.
+
+2013-04-16 Paul Smith <psmith@gnu.org>
+
+ * misc.c (open_tmpfd): Add a new function that returns a temporary
+ file by file descriptor.
+ (open_tmpfile): Move here from main.c.
+ * job.c (assign_child_tempfiles): Use the new open_tmpfd().
+
+2013-04-15 Paul Smith <psmith@gnu.org>
+
+ * makeint.h (OUTPUT_SYNC_TARGET, OUTPUT_SYNC_MAKE): Rename.
+ * job.c (start_job_command): Use new constants.
+ * main.c: New -O argument format.
+
+ * doc/make.texi (Options Summary): Document the argument to -O.
+ * make.1: Ditto.
+
+ * main.c (define_makeflags): Don't add space between a single-char
+ option and its argument.
+
+2013-04-06 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Implicit Variables): Clarify LDFLAGS vs. LDLIBS.
+ Fixes Savannah bug #37970.
+
+ * remake.c (check_dep): Reconsider files waiting on prerequisites,
+ as they may have finished. Fixes Savannah bug #37703.
+
+2013-02-28 Paul Smith <psmith@gnu.org>
+
+ * function.c (func_realpath): On Solaris (at least) realpath() can
+ fail due to EINTR, so loop it. Fixes Savannah bug #38420.
+
+2013-02-25 Paul Smith <psmith@gnu.org>
+
+ Add a proposed supported API for GNU make loaded objects.
+
+ * doc/make.texi (Loaded Object API): Document it.
+ * Makefile.am (make_SOURCES): Add new loadapi.c.
+ * dep.h: Remove eval_buffer(); moved to loadapi.c:gmk_eval().
+ * read.c (eval_buffer): Change eval_buffer() signature.
+ * main.c (main): Change eval_buffer() signature.
+ * variable.h (define_new_function): Change func_ptr signature.
+ * load.c (SYMBOL_EXTENSION): Change the extension.
+ * loadapi.c: Implement the new API.
+ * gnumake.h (gmk_eval): New function prototype.
+ (gmk_expand) Ditto.
+ (gmk_add_function) Ditto.
+ * gmk-default.scm (gmk-eval): Remove: now implemented in guile.c.
+ * guile.c (guile_expand_wrapper): Use gmk_expand()
+ (guile_eval_wrapper): Implement eval here to avoid double-expansion.
+ (guile_define_module): Define gmk-eval.
+ (func_guile): Use new func_ptr calling model.
+ (guile_gmake_setup): Use gmk_add_function() to declare $(guile ...)
+ * function.c (function_table_entry): Provide alternative func_ptr.
+ (func_eval): New signature for eval_buffer();
+ (function_table_init): New initialization for function_table_entry.
+ (expand_builtin_function): Support alternative invocation signature.
+ (define_new_function): Ditto.
+
+2013-01-20 Paul Smith <psmith@gnu.org>
+
+ * gnumake.h: New file to contain externally-visible content.
+ * makeint.h: Include gnumake.h. Move gmk_floc type to gnumake.h.
+ * Makefile.am (include_HEADERS): Install the gnumake.h header.
+
+ * makeint.h: Change struct floc to gmk_floc typedef.
+ * Many: Use the new typedef.
+
+ * make.h: Rename to makeint.h.
+ * Many: Use the new name makeint.h.
+
+2013-01-19 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (load Directive): Update to discuss location of
+ loaded object file.
+ (Remaking Loaded Objects): Document remaking of loaded objects.
+
+ * main.c (main): Rename READ_MAKEFILES to READ_FILES.
+ * read.c: Change READ_MAKEFILES to READ_FILES since it now
+ contains loaded object files as well.
+ (read_all_makefiles): Ditto.
+ (eval_makefile): Ditto.
+ (eval): Add any loaded file to the READ_FILES list, so that it
+ will be considered for re-build.
+
+ * load.c (load_file): Return the simple filename (no symbol) in
+ the LDNAME argument (now a const char **).
+ This filename should no longer have "./" prepended: modify the
+ function to always check the current directory if the name has no
+ "/", before using the normal methods.
+ * make.h: Change the load_file() prototype.
+
+ * README.git: Add a bit more documentation on Git workflow & rules.
+
+2013-01-13 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Restore all make flags after re-exec is complete.
+ Fixes Savannah bug #38051.
+
+2013-01-12 Paul Smith <psmith@gnu.org>
+
+ Convert CVS archive to Git.
+
+ * configure.in: Rename to configure.ac.
+ * README.cvs: Rename to README.git and rework for Git.
+ * maintMakefile: Use git clean for cleanup.
+ * ChangeLog: Use new Git repository URL.
+ * ChangeLog.2: Ditto.
+ * Makefile.am: Change documentation for Git
+ * Makefile.DOS.template: Ditto.
+ * README.template: Ditto.
+ * build_w32.bat: Ditto.
+ * prepare_w32.bat: Ditto.
+ * .cvsignore: Rename to .gitignore, and change to Git format.
+
+2012-12-08 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (create_batch_file): Fix last change: always increment the
+ counter of batch files before trying to use it.
+
+2012-12-07 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (construct_command_argv_internal): Remove " from
+ sh_chars_dos[]. Ignore an escaped backslash inside a string
+ quoted with "..". This lifts the 4KB or 8KB command-line length
+ limitation imposed by the Windows shells when a command uses quoted
+ strings, because we now don't call the shell in that case.
+
+ * job.c (create_batch_file): Declare the counter of batch files
+ static, to avoid having 2 jobs using the same file name and
+ stepping on each other's toes. When all 64K names are used up,
+ make one more loop looking for slots that became vacant. This
+ avoids leaving behind temporary batch files in the temporary
+ directory, which happens frequently on a fast machine when using
+ parallel builds.
+ (reap_children): Add debug message for when removal of a temporary
+ batch file fails.
+
+2012-10-29 Paul Smith <psmith@gnu.org>
+
+ New feature: "load" directive for dynamically-loaded objects.
+
+ * NEWS: Document new "load" directive.
+ * doc/make.texi (Extending make): New chapter on extensions to make.
+ * configure.in: Check for dlopen/dlsym/dlerror and -ldl.
+ * Makefile.am (make_SOURCES): Add new file load.c.
+ * make.h: Prototype for load_file().
+ * main.c (main): Add "load" to .FEATURES if it's available.
+ * read.c (eval): Parse "load" and "-load" directives.
+
+2012-09-29 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Require a new version of gettext (1.18.1).
+ Fixes Savannah bug #37307.
+
+2012-09-09 Paul Smith <psmith@gnu.org>
+
+ * configure.in (bsd_signal): Define _GNU_SOURCE, a la make.h.
+ Fixes Savannah bug #32247.
+
+ * remake.c (update_file_1): Force intermediate files to be
+ considered, not pruned, if their non-intermediate parent needs to
+ be remade. Fixes Savannah bug #30653.
+
+ * job.c (construct_command_argv_internal): Keep the command line
+ on the heap for very long lines. Fixes Savannah bug #36451.
+
+ * function.c (func_realpath): BSD realpath(3) doesn't fail if the
+ file does not exist: use stat. Fixes Savannah bug #35919.
+
+ * file.c (expand_deps): Duplicate the current variable buffer, not
+ the old pointer. Fixes Savannah bug #36925.
+
+ * read.c (eval): If we detect an initial UTF-8 BOM, skip it.
+ Fixes Savannah bug #36529.
+ (record_target_var): Remove unused variable "fname".
+ (eval): Use the correct pointer when adding to the variable buffer.
+ Fixes Savannah bug #36106.
+
+2012-09-09 Eli Zaretskii <eliz@gnu.org>
+
+ * read.c (unescape_char): Fix a thinko in the last change.
+
+2012-09-09 Paul Smith <psmith@gnu.org>
+
+ * default.c (default_variables): Use a correct default LIBPPATERNS
+ for MacOS. Fixes Savannah bug #37197.
+
+ * read.c (record_files): Reset the default macro values if .POSIX
+ is set. Fixes Savannah bug #37069.
+ (parse_file_seq): Break out of an infinite loop if we're not
+ making progress when parsing archive references.
+
+2012-09-01 Eli Zaretskii <eliz@gnu.org>
+
+ * README.W32.template: Update for job-server and Guile support.
+
+ * read.c (unescape_char): Advance 'p' after copying the unescaped
+ characters. Otherwise the backslashes are incorrectly erased from
+ the original string.
+
+2012-03-05 Paul Smith <psmith@gnu.org>
+
+ Update copyright notices to use year ranges, as allowed by
+ clarifications in the GNU Maintainer's Manual.
+
+2012-03-04 Paul Smith <psmith@gnu.org>
+
+ * read.c (unescape_char): New function to remove escapes from a char.
+ (record_files): Call it on the dependency string to unescape ":".
+ Fixes Savannah bug #12126 and bug #16545.
+
+ * make.h (CSTRLEN): Determine the length of a constant string.
+ * main.c: Use the new macro.
+ * read.c: Ditto.
+ * variable.h: Ditto.
+ * function.c: Simplify checks for function alternatives.
+
+ * expand.c (variable_append): If the current set is local and the
+ next one is not a parent, then treat the next set as
+ local as well. Fixes Savannah bug #35468.
+
+2012-03-03 Paul Smith <psmith@gnu.org>
+
+ * acinclude.m4 (AC_STRUCT_ST_MTIM_NSEC): Add support for AIX 5.2+
+ nanosecond timestamps. Fixes Savannah bug #32485.
+
+ Convert uses of `foo' for quoting to 'foo' to reflect changes in
+ the GNU Coding Standards. Fixes Savannah bug #34530.
+
+ * job.c (construct_command_argv_internal): In oneshell we need to
+ break the SHELLFLAGS up for argv. Fixes Savannah bug #35397.
+
+ * function.c (func_filter_filterout): Recompute the length of each
+ filter word in case it was compressed due to escape chars. Don't
+ reset the string as it's freed. Fixes Savannah bug #35410.
+
+ * misc.c (collapse_continuations): Only use POSIX-style
+ backslash/newline handling if the .POSIX target is set.
+ Addresses Savannah bug #16670 without backward-incompatibility.
+ * NEWS: Document behavior change.
+ * doc/make.texi (Splitting Lines): New section describing how to
+ use backslash/newline to split long lines.
+
+2012-02-26 Paul Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Check the stem length to avoid
+ stack overflows in stem_str. Fixes Savannah bug #35525.
+
+2012-02-03 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/sub_proc.c (proc_stdin_thread, proc_stdout_thread)
+ (proc_stderr_thread, process_pipe_io): Ifdef away unused
+ functions.
+
+ * w32/subproc/w32err.c (map_windows32_error_to_string) [_MSC_VER]:
+ Don't use TLS storage for szMessageBuffer. Ifdef away special
+ code for handling Winsock error codes. Make the function return a
+ `const char *'. Suggested by Ozkan Sezer. Fixes Savannah bug #34832.
+
+2012-01-29 Paul Smith <psmith@gnu.org>
+
+ * gmk-default.scm (to-string-maybe): Variables map to empty strings.
+ In Guile 2.0, (define ...) results in a variable object so make
+ sure that maps to an empty string in make.
+
+ * variable.c (parse_variable_definition): New POSIX assignment ::=
+ Take a struct variable to return more information after parsing.
+ (assign_variable_definition): New parse_variable_definition() call.
+ * variable.h: New declaration of parse_variable_definition().
+ * read.c (do_define): New parse_variable_definition() call.
+ (parse_var_assignment): Ditto.
+ (get_next_mword): Parse ::= as a variable assignment.
+ * doc/make.texi (Flavors): Describe the new ::= syntax.
+ * NEWS: Mention the ::= operator.
+
+ * variable.h (struct variable): Rearrange elts to reduce struct size.
+
+ * function.c (func_file): Create a new function, $(file ...)
+ * doc/make.texi (File Function): Document the $(file ..) function.
+ * NEWS: Announce it.
+
+ * gmk-default.scm (to-string-maybe): Use a more portable way to
+ test for unprintable characters.
+ * configure.in [GUILE]: Guile 1.6 doesn't have pkg-config
+ * build_w32.bat: Ditto.
+
+2012-01-28 Eli Zaretskii <eliz@gnu.org>
+
+ * config.h.W32.template: Update from config.h.in.
+
+ Support a Windows build with Guile.
+
+ * README.W32.template: Update with instructions for building with
+ Guile.
+
+ * build_w32.bat: Support building with Guile.
+
+ * make.h [HAVE_STDINT_H]: Include stdint.h.
+
+ * main.c (main, clean_jobserver): Move declarations of variables
+ not used in the WINDOWS32 build to the #else branch, to avoid
+ compiler warnings.
+
+ Fix failures on MS-Windows when Make's standard handles are invalid.
+ This can happen when Make is invoked from a GUI application.
+
+ * w32/subproc/sub_proc.c (process_init_fd): Don't dereference
+ pproc if it is a NULL pointer.
+ (process_begin, process_cleanup): Don't try to close pipe handles
+ whose value is INVALID_HANDLE_VALUE.
+ (process_easy): Initialize hIn, hOut, and hErr to
+ INVALID_HANDLE_VALUE. If DuplicateHandle fails with
+ ERROR_INVALID_HANDLE, duplicate a handle for the null device
+ instead of STD_INPUT_HANDLE, STD_OUTPUT_HANDLE or
+ STD_ERROR_HANDLE. Don't try to close pipe handles whose value is
+ INVALID_HANDLE_VALUE.
+
+ * function.c (windows32_openpipe): Initialize hIn and hErr to
+ INVALID_HANDLE_VALUE. If DuplicateHandle fails with
+ ERROR_INVALID_HANDLE, duplicate a handle for the null device
+ instead of STD_INPUT_HANDLE or STD_ERROR_HANDLE. Fix indentation.
+ Don't try to close handles whose value is INVALID_HANDLE_VALUE.
+
+2012-01-25 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (define_new_function): Fix format strings in calls to
+ `fatal'.
+
+2012-01-17 Paul Smith <psmith@gnu.org>
+
+ * guile.c (func_guile): Handle NULL returns from Guile.
+
+2012-01-16 Paul Smith <psmith@gnu.org>
+
+ * make.h (PATH_SEPARATOR_CHAR): Allow resetting for crosscompiling
+ for Windows. Patch by Chris Sutcliffe <ir0nh34d@gmail.com>
+ Fixes Savannah bug #34818.
+
+2012-01-15 Paul Smith <psmith@gnu.org>
+
+ * variable.h: Prototype an interface for defining new make functions.
+ * function.c (define_new_function): Define it.
+ (func_guile): Remove the "guile" function.
+ (function_table_init): Ditto.
+ * guile.c (func_guile): Add the "guile" function here.
+ (setup_guile): Call define_new_function() to define it.
+ (guile_eval_string): Obsolete.
+
+ * all: Update copyright notices.
+
+2012-01-12 Paul Smith <psmith@gnu.org>
+
+ Support GNU Guile as an embedded extension language for GNU make.
+
+ * NEWS: Note the new Guile capability.
+ * Makefile.am (EXTRA_DIST, make_SOURCES): Add new guile source files.
+ (AM_CFLAGS): Add Guile compiler flags.
+ (guile): Add a rule for converting default SCM into a C header.
+ * configure.in: Add support for --with-guile.
+ Also, convert the entire file to properly escaped autoconf m4, and
+ utilize newer features such as AS_IF() and AS_CASE().
+ * doc/make.texi (Guile Function): Document the GNU guile integration.
+ * make.h (guile_eval_string, guile_boot): Prototypes for Guile.
+ * main.c (main): Run guile_boot() to handle main().
+ (real_main): All the previous content of main() is here.
+ (real_main): Add "guile" to the .FEATURES variable.
+ * function.c (func_guile): Call Guile.
+ * guile.c: New file implementing GNU make integration with GNU Guile.
+ * gmk-default.scm: The integration of GNU make with Guile uses
+ Guile itself for much of the parsing and conversion of return
+ types, etc. This implementation is embedded into GNU make.
+ * config.h-vms.template: Disable Guile support.
+ * config.h.W32.template: Ditto.
+ * configh.dos.template: Ditto.
+ * config.ami.template: Ditto.
+ * makefile.vms: Add new Guile files.
+ * Makefile.DOS.template: Ditto.
+ * Makefile.ami: Ditto.
+ * NMakefile.template: Ditto.
+ * SMakefile.template: Ditto.
+ * build_w32.bat: Ditto.
+ * dosbuild.bat: Ditto.
+ * make_msvc_net2001.vcproj: Ditto.
+
+2011-11-15 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Use %ld when printing DWORD values.
+ * job.c (new_job): Ditto.
+ * w32/include/sub_proc.h: Use const.
+ * w32/subproc/sub_proc.c (open_jobserver_semaphore): Use const.
+ Fixes Savannah bug #34830. Changes suggested by Ozkan Sezer.
+
+ * configure.in (MAKE_JOBSERVER): Enable jobserver on W32 systems.
+ * config.h.W32.template (MAKE_JOBSERVER): Ditto.
+
+2011-11-14 Paul Smith <psmith@gnu.org>
+
+ * read.c (eval): parse_file_seq() might shorten the string due to
+ backslash removal. Start parsing again at the colon.
+ Fixes Savannah bug #33399.
+
+2011-11-13 Paul Smith <psmith@gnu.org>
+
+ * file.c (file_timestamp_cons): Match up data types to avoid warnings.
+ * filedef.h: Ditto.
+ * misc.c (concat): Ditto.
+ * read.c (eval): Assign value to avoid warnings.
+ * function.c (func_shell_base): Use fork() instead of vfork() to
+ avoid warnings.
+ * make.h (INTEGER_TYPE_SIGNED): Use <=0 to avoid warnings.
+ Fixes Savannah bug #34608.
+
+ * job.c (construct_command_argv): Remove _p.
+ (construct_command_argv_internal): Remove _ptr.
+ Fixes Savannah bug #32567.
+
+ * main.c (clean_jobserver): Don't write the free token to the pipe.
+ Change suggested by Tim Newsome <tnewsome@aristanetworks.com>
+
+ * acinclude.m4 (AC_STRUCT_ST_MTIM_NSEC): Add support for Darwin.
+ * filedef.h (FILE_TIMESTAMP_STAT_MODTIME): Ditto.
+ Patch provided by Troy Runkel <Troy.Runkel@mathworks.com>
+
+2011-10-11 Troy Runkel <Troy.Runkel@mathworks.com>
+
+ * config.h.W32: Enable job server support for Windows.
+ * main.c [WINDOWS32]: Include sub_proc.h
+ (main): Create a named semaphore to implement the job server.
+ (clean_jobserver): Free the job server semaphore when make is finished.
+ * job.c [WINDOWS32]: Define WAIT_NOHANG
+ (reap_children): Support non-blocking wait for child processes.
+ (free_child): Release job server semaphore when child process finished.
+ (job_noop): Don't define function on Windows.
+ (set_child_handler_action_flags): Don't define function on Windows.
+ (new_job): Wait for job server semaphore or child process termination.
+ (exec_command): Pass new parameters to process_wait_for_any.
+ * w32/include/sub_proc.h [WINDOWS32]: New/updated EXTERN_DECL entries.
+ * w32/subproc/sub_proc.c [WINDOWS32]: Added job server implementation.
+ (open_jobserver_semaphore): Open existing job server semaphore by name.
+ (create_jobserver_semaphore): Create new job server named semaphore.
+ (free_jobserver_semaphore): Close existing job server semaphore.
+ (acquire_jobserver_semaphore): Decrement job server semaphore count.
+ (release_jobserver_semaphore): Increment job server semaphore count.
+ (has_jobserver_semaphore): Returns whether job server semaphore exists.
+ (get_jobserver_semaphore_name): Returns name of job server semaphore.
+ (wait_for_semaphore_or_child_process): Wait for either the job server
+ semaphore to become signalled or a child process to terminate.
+ (process_wait_for_any_private): Support for non-blocking wait for child.
+ (process_wait_for_any): Added support for non-blocking wait for child.
+ (process_file_io): Pass new parameters to process_wait_for_any_private.
+
+2011-09-18 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): If we're re-exec'ing and we're the master make,
+ then restore the job_slots value so it goes back into MAKEFLAGS
+ properly. See Savannah bug #33873.
+
+ * remake.c (library_search): STD_DIRS is computed when other
+ static vars like buflen etc. are computed, so it must be static
+ as well. See Savannah bug #32511.
+
+2011-09-16 Paul Smith <psmith@gnu.org>
+
+ * maintMakefile (do-po-update): Apparently we have to avoid
+ certificate checks on the http://translationproject.org site now.
+
+2011-09-12 Paul Smith <psmith@gnu.org>
+
+ * read.c (eval): Ensure exported variables are defined in the
+ global scope. Fixes Savannah bug #32498.
+
+2011-09-11 Paul Smith <psmith@gnu.org>
+
+ * Makefile.am (dist-hook): Remove w32/Makefile and .deps/ from the
+ dist file. Fixes Savannah bug #31489.
+
+ * doc/make.texi (Complex Makefile): Add a hint about using
+ #!/usr/bin/make (for Savannah support request #106459)
+
+2011-09-02 Paul Smith <psmith@gnu.org>
+
+ * remake.c (touch_file): If we have both -n and -t, -n takes
+ precedence. Patch from Michael Witten <mfwitten@gmail.com>
+
+2011-08-29 Paul Smith <psmith@gnu.org>
+
+ * expand.c (variable_expand_string): Always allocate a new buffer
+ for a string we're expanding. The string we're working on can get
+ freed while we work on it (for example if it's the value of a
+ variable which modifies itself using an eval operation).
+ See Savannah patch #7534 for the original report by Lubomir Rintel.
+
+2011-06-12 Paul Smith <psmith@gnu.org>
+
+ * read.c (parse_file_seq): Move the check for empty members out of
+ the loop so we can go to the next member properly.
+ Another fix for Savannah bug #30612.
+
+ * config.h-vms.template: Newer versions of VMS have strncasecmp()
+ Patch provided by: Hartmut Becker <becker.ismaning@freenet.de>
+
+2011-05-07 Paul Smith <psmith@gnu.org>
+
+ * expand.c (variable_append): Add a LOCAL argument to track
+ whether this is the first invocation or not. If it's not and
+ private_var is set, then skip this variable and try the next one.
+ Fixes Savannah bug #32872.
+
+ * read.c (parse_file_seq): Ensure existence checks use glob().
+
+2011-05-07 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (construct_command_argv_internal): Don't assume shellflags
+ is always non-NULL. Escape-protect characters special to the
+ shell when copying the value of SHELL into new_line. Fixes
+ Savannah bug #23922.
+
+2011-05-02 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Special Variables): Add documentation for the new
+ words in .FEATURES. Fixes Savannah bug #32058.
+ (Flavor Function): Rewrite the section on the flavor function.
+ Fixes Savannah bug #31582.
+
+ * function.c (func_sort): Use the same algorithm to count the
+ number of words we will get after the split, as we use to split.
+ Based on a patch from Matthias Hopf. Fixes Savannah bug #33125.
+
+ * make.h: Make global variable stack_limit extern.
+ Fixes Savannah bug #32753.
+
+2011-05-01 Paul Smith <psmith@gnu.org>
+
+ * read.c (parse_file_seq): Don't try to invoke glob() unless there
+ are potential wildcard characters in the filename. Performance
+ enhancement suggested by Michael Meeks <michael.meeks@novell.com>
+
+2011-04-29 Boris Kolpackov <boris@codesynthesis.com>
+
+ * read.c (eval_makefile): Delay caching of the file name until after
+ all the expansions and searches.
+
+2011-04-17 David A. Wheeler <dwheeler@dwheeler.com>
+
+ * doc/make.texi (Reading Makefiles): Document "!=".
+ (Setting): Ditto.
+ (Features): Ditto.
+ * variable.h (enum variable_flavor): New type "f_shell".
+ * variable.c (shell_result): Send a string to the shell and store
+ the output.
+ (do_variable_definition): Handle f_shell variables: expand the
+ value, then send it to the shell and store the result.
+ (parse_variable_definition): Parse "!=" shell assignments.
+ * read.c (get_next_mword): Treat "!=" as a varassign word.
+ * function.c (fold_newlines): If trim_newlines is set remove all
+ trailing newlines; otherwise remove only the last newline.
+ (func_shell_base): Move the guts of the shell function here.
+ (func_shell): Call func_shell_base().
+
+2011-02-21 Paul Smith <psmith@gnu.org>
+
+ * strcache.c (various): Increase performance based on comments
+ from Ralf Wildenhues <Ralf.Wildenhues@gmx.de>. Stop looking for
+ a buffer when we find the first one that fits, not the best fit.
+ If there is not enough free space in a buffer move it to a
+ separate list so we don't have to walk it again.
+ * make.h (NDEBUG): Turn off asserts unless maintainer mode is set.
+ (strcache_add_len, strcache_setbufsize): Use unsigned length/size.
+ * maintMakefile (AM_CPPFLAGS): Enable MAKE_MAINTAINER_MODE.
+
+ * remake.c (complain): Move translation lookups closer to use.
+
+2011-02-13 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi: Clean up references to "static" variables and
+ semicolon errors. Patch from Michael Witten <mfwitten@gmail.com>.
+
+2010-12-27 Paul Smith <psmith@gnu.org>
+
+ * make.1: Update the header/footer info in the man page.
+
+2010-11-28 Paul Smith <psmith@gnu.org>
+
+ * read.c (record_target_var): Don't reset v if it's the same as
+ the global version. Fixes Savannah bug #31743.
+
+2010-11-06 Paul Smith <psmith@gnu.org>
+
+ * variable.c (print_auto_variable): Print auto variables; ignore others.
+ (print_noauto_variable): Print non-auto variables; ignore others.
+ (print_variable_set): Allow the caller to select which type to print.
+ (print_target_variables): Show all the non-auto variables for a target.
+
+ * default.c (install_default_suffix_rules): Initialize recipe_prefix.
+ * rule.c (install_pattern_rule): Ditto.
+ * read.c (record_files): Pass in the current recipe prefix. Remember
+ it in the struct command for these targets.
+ (eval): Remember the value of RECIPEPREFIX when we start parsing.
+ Do not remove recipe prefixes from the recipe here: we'll do it later.
+ * job.c (start_job_command): Remove recipe prefix characters early,
+ before we print the output or chop it up.
+ * file.c (print_file): If recipe_prefix is not standard, reset it
+ in -p output. Assign target variables in -p output as well.
+
+ * commands.c (chop_commands): Max command lines is USHRT_MAX.
+ Set any_recurse as a bitfield.
+ * make.h (USHRT_MAX): Define if not set.
+
+2010-10-27 Paul Smith <psmith@gnu.org>
+
+ * commands.h (struct commands): Rearrange to make better use of
+ memory. Add new recipe_prefix value.
+
+2010-10-26 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Setting): Document the treatment of
+ backslash-newline in variable values.
+ * misc.c (collapse_continuations): Do not collapse multiple
+ backslash-newlines into a single space. Fixes Savannah bug #16670.
+
+2010-08-29 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Implicit Variables): Document LDLIBS and LOADLIBES.
+ Fixes Savannah bug #30807.
+ (Instead of Execution): Mention that included makefiles are still
+ rebuilt even with -n. Fixes Savannah bug #30762.
+
+ * configure.in: Bump to 3.82.90.
+
+ * make.h: Add trace_flag variable.
+ * main.c (switches): Add --trace option.
+ (trace_flag): Declare variable.
+ * job.c (start_job_command): Show recipe if trace_flag is set.
+ (new_job): Show trace messages if trace_flag is set.
+ * doc/make.texi (Options Summary): Document the new --trace option.
+ * make.1: Add --trace documentation.
+ * NEWS: Mention --trace.
+
+ * job.c (child_error): Show recipe filename/linenumber on error.
+ Also show "(ignored)" when appropriate even for signals/coredumps.
+ * NEWS: Mention file/linenumber change.
+
+ * main.c (main): Print version info when DB_BASIC is set.
+
+ * job.c (construct_command_argv_internal): If shellflags is not
+ set, choose an appropriate default value. Fixes Savannah bug #30748.
+
+2010-08-27 Eli Zaretskii <eliz@gnu.org>
+
+ * variable.c (define_automatic_variables) [__MSDOS__ || WINDOWS32]:
+ Remove trailing backslashes in $(@D), $(<D), etc., for consistency
+ with forward slashes. Fixes Savannah bug #30795.
+
+2010-08-13 Paul Smith <psmith@gnu.org>
+
+ * NEWS: Accidentally forgot to back out the sorted wildcard
+ enhancement in 3.82, so update NEWS.
+ Also add NEWS about the error check for explicit and pattern
+ targets in the same rule, added to 3.82.
+
+ * main.c (main): Add "oneshell" to $(.FEATURES) (forgot to add
+ this in 3.82!)
+
+ * read.c (parse_file_seq): Fix various errors parsing archives
+ with multiple objects in the parenthesis, as well as wildcards.
+ Fixes Savannah bug #30612.
+
+2010-08-10 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Expand MAKEFLAGS before adding it to the
+ environment when re-exec'ing. Fixes Savannah bug #30723.
+
+2010-08-07 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/build.bat: Make all 3 cl.exe compile command lines
+ use the same /I switches. Fixes Savannah bug #30662.
+
+ * function.c (func_shell) [WINDOWS32]: Reset just_print_flag
+ around the call to construct_command_argv, so that a temporary
+ batch file _is_ created when needed for $(shell).
+ Fixes Savannah bug #16362.
+
+2010-08-07 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * configh.dos.template (HAVE_STRNCASECMP): Define.
+
+2010-07-28 Paul Smith <psmith@gnu.org>
+
+ Version 3.82 released.
+
+ * configure.in: Change release version.
+ * NEWS: Change the date.
+
+ * read.c (parse_file_seq): Remove GLOB_NOSORT for
+ backward-compatibility. We'll add it back in next release.
+ * NEWS: Note it.
+
+2010-07-24 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (pid2str) [WINDOWS32]: Fix CPP conditionals for using %Id
+ format.
+
+2010-07-18 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Switch bsd_signal to AC_CHECK_DECLS() to make sure
+ we have a declaration. Fixes Savannah bug #25713 (maybe?)
+ * doc/make.texi (Complex Makefile): Cleanup variable assignments.
+ (One Shell): New subsection for the .ONESHELL special target.
+
+ Patches by Ozkan Sezer <sezeroz@gmail.com>:
+
+ * misc.c (strncasecmp): Local implementation for systems without.
+ * config.h.W32.template (HAVE_STRNICMP): Define on Windows.
+ * configure.in: Check for strncasecmp/strncmpi/strnicmp.
+ * job.c [WINDOWS32]: Don't define dup2 on Windows.
+ (pid2str): Use "%Id" even with MSVC
+ (exec_command): Cast to pid_t when calling pid2str().
+ * w32/subproc/sub_proc.c [WINDOWS32]: Include config.h first.
+ Use stddef.h on MSVC to get intptr_t.
+ * w32/subproc/misc.c [WINDOWS32]: Include config.h first.
+ * w32/compat/dirent.c [WINDOWS32]: Include config.h first.
+ (readdir): Cast -1 to correct type for d_ino.
+ * w32/pathstuff.c [WINDOWS32]: Ensure make.h is included first.
+ * make.h [WINDOWS32]: Don't prototype alloca() on Windows.
+ Add configuration for strncasecmp().
+ * main.c (ADD_SIG) [WINDOWS32]: Avoid warnings in MSVC.
+ * config.h.W32.template [WINDOWS32]: Don't warn on unsafe
+ functions or variables.
+ * NMakefile.template [WINDOWS32]: Remove /MACHINE:I386.
+ * main.c (clean_jobserver): Cast due to MSVC brokenness.
+ (decode_switches): Ditto.
+ * vpath.c (construct_vpath_list): Ditto.
+ * rule.c (freerule): Ditto.
+ * ar.c (ar_glob): Ditto.
+
+2010-07-16 Boris Kolpackov <boris@codesynthesis.com>
+
+ * misc.c (concat): Fix buffer overrun.
+
+2010-07-12 Paul Smith <psmith@gnu.org>
+
+ Update copyrights to add 2010.
+
+ * build_w32.bat: Support for MSVC Windows x86_64 builds.
+ * job.c: Don't define execve() on MSVC/64bit.
+ Patch by Viktor Szakats. Fixes Savannah bug #27590.
+
+2010-07-12 Eli Zaretskii <eliz@gnu.org>
+
+ * make.h (alloca) [!__GNUC__]: Don't define prototype.
+ (int w32_kill): Use pid_t for process ID argument.
+ Fixes Savannah bug #27809.
+
+2010-07-12 Paul Smith <psmith@gnu.org>
+
+ Integrated new .ONESHELL feature.
+ Patch by David Boyce <dsb@boyski.com>. Modified by me.
+
+ * NEWS: Add a note about the new feature.
+ * job.c (is_bourne_compatible_shell): Determine whether we're
+ using a standard POSIX shell or not.
+ (start_job_command): Accept '-ec' as POSIX shell flags.
+ (construct_command_argv_internal): If one_shell is set and we are
+ using a POSIX shell, remove "interior" prefix characters such as
+ "@", "+", "-". Also treat "\n" as a special character when
+ choosing the slow path, if ONESHELL is set.
+ * job.h (is_bourne_compatible_argv): Define the new function.
+
+ * make.h (one_shell): New global variable to remember setting.
+ * main.c: Declare it.
+ * read.c (record_files): Set it.
+ * commands.c (chop_commands): If one_shell is set, don't chop
+ commands into multiple lines; just keep one line.
+
+2010-07-09 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/sub_proc.c: Include stdint.h.
+ (sub_process_t): Use intptr_t for file handles and pid_t for
+ process ID.
+ (process_pipes, process_init_fd, process_begin): Use intptr_t for
+ file handles and pid_t for process ID. Fixes Savannah bug #27809.
+ Patch by Ozkan Sezer <sezeroz@gmail.com>
+
+ * function.c (abspath): Support absolute file names in UNC format.
+ Fixes Savannah bug #30312.
+
+ * job.c (pid2str) [WINDOWS32]: Don't use %Id with GCC < 4.x.
+ (exec_command) [WINDOWS32]: Use pid2str instead of non-portable
+ %Id.
+
+ * main.c (handle_runtime_exceptions): Use %p to print addresses,
+ to DTRT on both 32-bit and 64-bit hosts. Savannah bug #27809.
+
+ * job.c (w32_kill, start_job_command, create_batch_file): Use
+ pid_t for process IDs and intptr_t for the 1st arg of
+ _open_osfhandle.
+ * function.c (windows32_openpipe): Use pid_t for process IDs and
+ intptr_t for the 1st arg of _open_osfhandle.
+ (func_shell): Use pid_t for process IDs.
+ * main.c (main) [WINDOWS32]: Pacify the compiler.
+ * config.h.W32.template (pid_t): Add a definition for 64-bit
+ Windows builds that don't use GCC. Fixes Savannah bug #27809.
+ Patch by Ozkan Sezer <sezeroz@gmail.com>
+
+2010-07-07 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Bump to a new prerelease version 3.81.91.
+
+2010-07-06 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Set a default value of "-c" for .SHELLFLAGS.
+ * NEWS: Mention the new behavior of .POSIX and the new .SHELLFLAGS
+ variable.
+ * job.c (construct_command_argv): Retrieve the .SHELLFLAGS value
+ and pass it to construct_command_argv_internal().
+ (construct_command_argv_internal): If .SHELLFLAGS is non-standard
+ use the slow path. Use that value instead of hard-coded "-c".
+
+2010-07-05 Paul Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): lastslash can be const.
+ * dir.c (downcase): Remove unused variable.
+ * hash.c (hash_init): Cast sizeof for error message.
+ * arscan.c (ar_scan): Cast to char* for WINDOWS32.
+ (ar_member_touch): Ditto.
+ * ar.c (glob_pattern_p): Avoid symbol collision: open -> opened
+ * signame.c (strsignal): Ditto: signal -> sig
+ * job.c (create_batch_file): Ditto: error -> error_string
+ (pid2str): Portably convert a pid_t into a string
+ (reap_children): Use it.
+ (start_waiting_job): Use it.
+ Savannah bug #27809. Patch by Ozkan Sezer <sezeroz@gmail.com>
+
+2010-07-03 Paul Smith <psmith@gnu.org>
+
+ * read.c (parse_file_seq): All archive groups must end with ')' as
+ the LAST character in a word. If there is no word ending in ')'
+ then it's not an archive group. Fixes Savannah bug #28525.
+
+2010-07-01 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Append optional features using separate calls.
+ Not as efficient but not all compilers allow conditionals inside
+ macro calls. Fixes Savannah bug #29244.
+
+2010-01-10 Paul Smith <psmith@gnu.org>
+
+ * make.h (patheq): Rename strieq() to patheq() for clarity.
+ * dir.c (dir_contents_file_exists_p): Use it.
+
+ * dir.c (file_impossible): Convert xmalloc/memset to xcalloc.
+ * file.c (enter_file): Ditto.
+ * job.c (new_job): Ditto.
+
+2009-12-11 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (construct_command_argv_internal) <sh_cmds_dos>
+ [WINDOWS32]: Add "echo." and a few more commands that are built
+ into cmd.exe. Fixes Savannah bug #28126.
+
+ * file.c (lookup_file) [HAVE_DOS_PATHS]: Treat '\\' like we do
+ with '/'.
+
+2009-11-15 Paul Smith <psmith@gnu.org>
+
+ Patches for VMS provided by Hartmut Becker <Hartmut.Becker@hp.com>
+
+ * vmsjobs.c (ctrlYPressed) [VMS]: Deal with CTRL-Y.
+ (vmsHandleChildTerm) [VMS]: Ditto.
+ (astYHandler) [VMS]: Ditto.
+ (tryToSetupYAst) [VMS]: Ditto.
+ (child_execute_job) [VMS]: Ditto.
+
+ * vmsify.c (trnlog) [VMS]: Fix const errors.
+ (vmsify) [VMS]: Ditto.
+
+ * readme.vms [VMS]: Update with notes for 3.82.
+
+ * job.h (comname) [VMS]: Remember the temporary command filename
+
+ * dir.c (vmsify) [VMS]: Fix const errors.
+ (vms_hash) [VMS]: Ditto.
+ (vmsstat_dir) [VMS]: Ditto.
+ (find_directory) [VMS]: Fix case-insensitive option for VMS
+ (dir_contents_file_exists_p) [VMS]: Ditto.
+ (file_impossible) [VMS]: Ditto.
+
+ * config.h-vms.template (HAVE_FDOPEN) [VMS]: Have it.
+ (HAVE_STRCASECMP) [VMS]: Ditto.
+
+ * arscan.c (VMS_get_member_info) [VMS]: Fix timezone computation.
+ (ar_scan) [VMS]: Fix const error.
+
+2009-11-12 Boris Kolpackov <boris@codesynthesis.com>
+
+ * vpath.c (vpath_search, selective_vpath_search): Add index arguments
+ which allows the caller to get the index of the matching directory.
+
+ * make.h (vpath_search): Update prototype.
+
+ * remake.c (library_search): Implement linker-compatible library
+ search. Use the new VPATH_SEARCH index functionality to keep track
+ of the directory index for each match. Select the match with the
+ lowest directory index.
+
+ * implicit.c (pattern_search): Pass NULL for the index arguments in
+ the VPATH_SEARCH call.
+
+ * doc/make.texi (Directory Search for Link Libraries): Describe the
+ new search behavior.
+
+ * NEWS: Add a note about the new behavior.
+
+2009-10-25 Paul Smith <psmith@gnu.org>
+
+ * AUTHORS, et.al.: Update copyright years.
+
+ * implicit.c (stemlen_compare): Fix qsort() compare bug that
+ caused implicit rules with equal stem lengths to be sorted
+ indeterminately.
+
+2009-10-24 Paul Smith <psmith@gnu.org>
+
+ * main.c (usage): Add --eval to the usage string.
+ (switches): Add the --eval switch.
+ (main): If --eval is given, add them to the simply-expanded variable
+ -*-eval-flags-*- (necessary to allow recursion to work properly).
+ (define_makeflags): Add -*-eval-flags-*- to MAKEFLAGS.
+
+ * NEWS: Describe the new --eval command line argument.
+ * doc/make.texi (Options Summary): Document --eval.
+
+ * dep.h: eval_buffer() returns void.
+ * read.c (eval_buffer): Ditto.
+ (eval): Ditto.
+
+ * variable.h (define_variable_cname): New macro for constant
+ variable names.
+ * default.c (set_default_suffixes): Use it.
+ * main.c (main): Ditto.
+ (handle_non_switch_argument): Ditto.
+ (define_makeflags): Ditto.
+ * read.c (read_all_makefiles): Ditto.
+ * variable.c (define_automatic_variables): Ditto.
+
+ * commands.c (dep_hash_cmp): Avoid casts.
+ (dep_hash_1): Ditto.
+ (dep_hash_2): Ditto.
+
+2009-10-22 Boris Kolpackov <boris@codesynthesis.com>
+
+ * read.c (read_all_makefiles): Mark the default makefile dependency
+ dontcare.
+
+2009-10-07 Boris Kolpackov <boris@codesynthesis.com>
+
+ * read.c (do_undefine): Free the expanded variable name.
+
+ * commands.c (dep_hash_cmp, set_file_variables): Move the order-only
+ to normal upgrade logic from dep_hash_cmp to set_file_variables.
+
+2009-10-06 Boris Kolpackov <boris@codesynthesis.com>
+
+ * dep.h (uniquize_deps): Remove.
+
+ * read.c (uniquize_deps): Merge into set_file_variables in
+ commands.c.
+ (dep_hash_1, dep_hash_2, dep_hash_cmp): Move to commands.c.
+
+ * commands.c (set_file_variables): Avoid modifying the dep
+ chain to achieve uniqueness. Fixes savannah bug 25780.
+
+ * implicit.c (pattern_search): Instead of re-setting all automatic
+ variables for each rule we try, just update $*.
+
+2009-10-06 Boris Kolpackov <boris@codesynthesis.com>
+
+ * variable.h (undefine_variable_in_set): New function declaration.
+ (undefine_variable_global): New macro.
+
+ * variable.c (undefine_variable_in_set): New function implementation.
+
+ * read.c (vmodifiers): Add undefine_v modifier.
+ (parse_var_assignment): Parse undefine.
+ (do_undefine): Handle the undefine directive.
+ (eval): Call do_undefine if undefine_v is set.
+
+ * main.c (.FEATURES): Add a keyword to indicate the new feature.
+
+ * doc/make.texi (Undefine Directive): Describe the new directive.
+
+ * NEWS: Add a note about the new directive.
+
+2009-10-05 Boris Kolpackov <boris@codesynthesis.com>
+
+ * implicit.c (pattern_search): Initialize file variables only
+ if we need to parse a rule that requires the second expansion.
+
+2009-10-03 Paul Smith <psmith@gnu.org>
+
+ * make.h: Include <alloca.h> even on systems where __GNUC__ is
+ defined. Not sure why it was done the other way.
+ Requested by David Boyce <dsb@boyski.com>.
+
+2009-09-30 Boris Kolpackov <boris@codesynthesis.com>
+
+ * dep.h (dep): Add the DONTCARE bitfield.
+
+ * filedef.h (file):Add the NO_DIAG bitfield.
+
+ * read.c (eval_makefile): Set the DONTCARE flag in struct dep,
+ not struct file (a file can be a dependency of many targets,
+ some don't care, some do).
+
+ * remake.c (update_goal_chain): Propagate DONTCARE from struct
+ dep to struct file before updating the goal and restore it
+ afterwards.
+ (update_file): Don't prune the dependency graph if this target
+ has failed but the diagnostics hasn't been issued.
+ (complain): Scan the file's dependency graph to find the file
+ that caused the failure.
+ (update_file_1): Use NO_DIAG instead of DONTCARE to decide
+ whether to print diagnostics.
+
+ Fixes Savannah bugs #15110, #25493, #12686, and #17740.
+
+2009-09-28 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Pattern Intro): Move the match algorithm
+ discussion into the "Pattern Match" node.
+ (Pattern Match): Expand on the pattern rule matching algorithm.
+
+2009-09-28 Andreas Buening <andreas.buening@nexgo.de>
+
+ * job.c (construct_command_argv_internal) [OS2]: Don't eat too
+ much of the command line on a single pass.
+
+2009-09-28 Boris Kolpackov <boris@codesynthesis.com>
+
+ * varible.c (create_pattern_var): Insert variables into the
+ PATTERN_VARS list in the shortest patterns first order.
+
+ * implicit.c (tryrule): Add STEMLEN and ORDER members. These are
+ used to sort the rules.
+ (stemlen_compare): Compare two tryrule elements.
+ (pattern_search): Sort the rules so that they are in the shortest
+ stem first order.
+
+ * main.c (.FEATURES): Add a keyword to indicate the new behavior.
+
+ * doc/make.texi (Pattern-specific Variable Values): Describe the
+ new pattern-specific variables application order.
+ (Introduction to Pattern Rules): Describe the new pattern rules
+ search order.
+
+ * NEWS: Add a note about the new behavior.
+
+2009-09-27 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Double-Colon): Mention that pattern rules with
+ double-colons have a different meaning. Savannah bug #27497.
+
+2009-09-27 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * configh.dos.template: Remove unconditional definition of
+ SYS_SIGLIST_DECLARED.
+ Include <sys/version.h> because ports of GCC 4.3.0 and later no
+ longer include it, so macros like __DJGPP_MINOR__ are no longer
+ defined automatically.
+
+ * Makefile.DOS.template (INCLUDES): Use $(prefix) and the
+ corresponding variables to define LIBDIR, INCLUDEDIR and LOCALEDIR
+ instead of using the hardcoded ones.
+ (SUBDIRS): doc subdir added.
+ (INFO_DEPS, DVIS): Values changed to 'make.info' and 'make.dvi'.
+ (TEXI2HTML, TEXI2HTML_FLAGS): Removed. Use makeinfo --html to
+ create html formated docs. texi2html may not be ported to DOS.
+ (make.info, make.dvi, make.ps, make.html): Make targets depend on
+ 'make.texi'.
+ (.texi.info, .texi, .texi.dvi): Now invoked recursively. Change
+ -I switch to look in ./ instead of ./doc.
+ (html): Target depend on html-recursive instead of make_1.html.
+ (make_1.html): Removed.
+ (mostlyclean-aminfo): Use $(srcdir)/doc instead of ./ as prefix.
+ (all-recursive): Allow for more than one subdir in the build
+ process.
+ (mostlyclean-recursive, clean-recursive, distclean-recursive)
+ (maintainer-clean-recursive, check-recursive): Enter in doc/ too.
+ (tags-recursive): Allow for more than one subdir in the build
+ process.
+ (info-recursive, dvi-recursive, ps-recursive, html-recursive): New
+ targets. Enter into doc/ to produce the targets.
+ (all-am): $(INFO_DEPS) replaced by info.
+
+2009-09-26 Paul Smith <psmith@gnu.org>
+
+ * read.c (record_files): Use free_ns() to free struct nameseq.
+ (eval): Ditto.
+
+ * rule.c (freerule): Use free_dep_chain().
+
+ * read.c (record_files): Free FILENAMES chain for implicit rules.
+ (eval): Static pattern targets go into the string cache.
+
+ * function.c (string_glob): Free NAME in the nameseq chain.
+
+2009-09-25 Boris Kolpackov <boris@codesynthesis.com>
+
+ * implicit.c (pattern_search): Terminate early if we haven't
+ found any rules to try (performance improvement).
+
+2009-09-25 Boris Kolpackov <boris@codesynthesis.com>
+
+ * implicit.c (pattern_search): Merge three parallel arrays,
+ TRYRULES, MATCHES, and CHECKED_LASTSLASH, into one array
+ of struct TRYRULE. In the old version the latter two arrays
+ had insufficient length.
+
+2009-09-24 Paul Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Add back support for order-only
+ prerequisites for secondary expansion implicit rules, that were
+ accidentally dropped. If we find a "|", enable order-only mode
+ and set IGNORE_MTIME on all deps that are seen afterward.
+ (pattern_search): Fix memory leaks: for intermediate files where
+ we've already set the file variable and pattern variable sets, be
+ sure to either save or free them as appropriate.
+
+2009-09-23 Paul Smith <psmith@gnu.org>
+
+ Rework the way secondary expansion is stored, for efficiency.
+ This changes secondary expansion so that ONLY WHEN we know we have
+ a possibility of needing secondary expansion, do we defer the
+ secondary expansion. This means more parsing the deps but we use
+ a lot less memory (due to the strcache). Also, this fixes
+ Savannah bug #18622.
+
+ * read.c (eval): Don't parse the dep string here anymore.
+ (record_files): Take the dep argument as an unparsed string. If
+ secondary expansion is enabled AND the prereq string has a '$' in
+ it, then set NEED_2ND_EXPANSION and keep the entire string.
+ Otherwise, parse the dep string here to construct the dep list
+ with the names in the strcache.
+
+ * misc.c (copy_dep_chain): For NEED_2ND_EXPANSION, we need to
+ duplicate the name string (others are in the strcache).
+
+ * implicit.c: Remove struct idep and free_idep_chain(): unused.
+ (struct patdeps): New structure to store prereq information.
+ (pattern_search): Use the NEED_2ND_EXPANSION flag to determine
+ which prerequisites need expansion, and expand only those.
+
+ * file.c (split_prereqs): Break parse_prereqs() into two parts: this
+ and enter_prereqs(). split_prereqs() takes a fully-expanded string
+ and splits it into a DEP list, handling order-only prereqs.
+ (enter_prereqs): This function enters a list of DEPs into the file
+ database. If there's a stem defined, expand any pattern chars.
+ (expand_deps): Only try to expand DEPs which have NEED_2ND_EXPANSION
+ set. Use the above functions.
+ (snap_deps): Only perform second expansion on prereqs that need it,
+ as defined by the NEED_2ND_EXPANSION flag.
+ (print_prereqs): New function to print the prereqs
+ (print_file): Call print_prereqs() rather than print inline.
+
+ * hash.h (STRING_COMPARE): Take advantage of strcache() by
+ comparing pointers.
+ (STRING_N_COMPARE): Ditto.
+ (ISTRING_COMPARE): Ditto.
+
+ * dep.h (PARSE_FILE_SEQ): New macro to reduce casts.
+ (parse_file_seq): Return void*
+ * read.c (parse_file_seq): Return void*.
+ (eval): Invoke macroized version of parse_file_seq()
+ * default.c (set_default_suffixes): Ditto.
+ * file.c (split_prereqs): Ditto.
+ * function.c (string_glob): Ditto.
+ * main.c (main): Ditto.
+ * rule.c (install_pattern_rule): Ditto.
+
+ * filedef.h: Add split_prereqs(), enter_prereqs(), etc.
+
+2009-09-16 Paul Smith <psmith@gnu.org>
+
+ * misc.c (alloc_dep, free_dep): Now that we have xcalloc(),
+ convert to macros.
+ * dep.h: Create alloc_dep() / free_dep() macros.
+
+ * implicit.c (pattern_search): Take advantage of the new
+ parse_file_seq() to add the directory prefix to each prereq.
+
+ * dep.h: Remove multi_glob() and enhance parse_file_seq() to do it
+ all. Avoid reversing chains. Support adding prefixes.
+ * read.c (parse_file_seq): Rewrite to support globbing. Allow for
+ cached/non-cached results.
+ (eval): Remove multi_glob() & invoke new parse_file_seq().
+ * rule.c (install_pattern_rule): Ditto.
+ * main.c (main): Ditto.
+ * implicit.c (pattern_search): Ditto.
+ * function.c (string_glob): Ditto.
+ * file.c (parse_prereqs): Ditto.
+ * default.c (set_default_suffixes): Ditto.
+
+ * variable.c (parse_variable_definition): Don't run off the end of
+ the string if it ends in whitespace (found with valgrind).
+
+ * commands.c (set_file_variables): Keep space for all targets in
+ $? if -B is given (found with valgrind).
+
+2009-09-15 Paul Smith <psmith@gnu.org>
+
+ * misc.c (concat): Make concat() variadic so it takes >3 arguments.
+ (xcalloc): Add new function.
+ * make.h: New declarations.
+
+ * ar.c (ar_glob_match): New calling method for concat().
+ * main.c (main): Ditto.
+ (decode_env_switches): Ditto.
+ * read.c (eval_makefile): Ditto.
+ (tilde_expand): Ditto.
+ (parse_file_seq): Ditto.
+ * variable.c (target_environment): Ditto.
+ (sync_Path_environment): Ditto.
+
+ * ar.c (ar_glob_match): Use xcalloc().
+ * dir.c (file_impossible): Ditto.
+ * file.c (enter_file): Ditto.
+ * job.c (new_job): Ditto.
+ * read.c (parse_file_seq): Ditto.
+ * vmsfunctions.c (opendir): Ditto.
+
+2009-09-14 Rafi Einstein <rafi.einstein@gmail.com> (tiny patch)
+
+ * w32/subproc/sub_proc.c (process_begin): Check *ep non-NULL
+ inside the loop that looks up environment for PATH.
+
+2009-08-31 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (windows32_openpipe): Update envp after calling
+ sync_Path_environment.
+
+2009-08-02 Paul Smith <psmith@gnu.org>
+
+ * remake.c (notice_finished_file): Ensure file->cmds is not null
+ before looping through them. Fixes Savannah bug #21824.
+
+ * doc/make.texi (Wildcard Examples): Clarify when objects is
+ wildcard-expanded. Fixes Savannah bug #24509. Patch by Martin Dorey.
+ (Include): Clarify the behavior of -include.
+ Fixes Savannah bug #18963.
+
+2009-08-01 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Catalogue of Rules): Clarify where -c, -F,
+ etc. come on the command line. Fixes Savannah bug #27093.
+
+ * expand.c (expand_argument): If the argument is large enough use
+ xmalloc() instead of alloca(). Fixes Savannah bug #27143.
+
+ * variable.c (do_variable_definition): Avoid using alloca() to
+ hold values, which can be large. Fixes Savannah bug #23960.
+
+ * job.c (new_job): Use memmove() instead of strcpy() since both
+ pointers are in the same memory block. Fixes Savannah bug #27148.
+ Patch by Petr Machata.
+
+2009-07-29 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * job.c (construct_command_argv_internal): Add "ulimit" and
+ "unset" to the sh_cmds for Unixy shells.
+
+2009-07-29 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * configure.in: Move side-effects outside AC_CACHE_VAL arguments
+ that set make_cv_sys_gnu_glob, so they are also correctly set
+ when the cache has been populated before.
+
+2009-07-04 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (func_realpath) [!HAVE_REALPATH]: Require the file to
+ exist, as realpath(3) does where it's supported.
+
+2006-07-04 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (IS_ABSOLUTE, ROOT_LEN): New macros.
+ (abspath): Support systems that define HAVE_DOS_PATHS (have
+ drive letters in their file names). Use IS_PATHSEP instead of a
+ literal '/' comparison. Fixes Savannah bug #26886.
+
+2009-06-14 Paul Smith <psmith@gnu.org>
+
+ * remake.c (update_file_1): Remember the original file we marked
+ as updating, so we can clear that flag again. If we find a target
+ via vpath, FILE might change.
+ (check_dep): Ditto. Fixes Savannah bug #13529.
+ Patch by Reid Madsen <reid.madsen@tek.com>.
+
+2009-06-13 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (MAKEFILES Variable): Be explicit that files
+ included by MAKEFILES cannot give default goals.
+ * read.c (eval): If set_default is not set, pass the no-default-goal
+ value when we read included makefiles. Fixes Savannah bug #13401.
+
+ * ar.c (ar_name): Ensure that targets with empty parens aren't
+ considered archive member references: archive members must have a
+ non-empty "member" string. Fixes Savannah bug #18435.
+
+ * function.c (string_glob): Rely on multi_glob() to determine
+ whether files exist or not. Remove call to file_exists_p() which
+ is not always correct. Fixes Savannah bug #21231.
+ * read.c (multi_glob): Add a new argument EXISTS_ONLY; if true
+ then only files that really exist will be returned.
+ * dep.h: Add new argument to multi_glob().
+ * rule.c (install_pattern_rule): Ditto.
+ * read.c (eval): Ditto.
+ * main.c (main): Ditto.
+ * implicit.c (pattern_search): Ditto.
+ * file.c (parse_prereqs): Ditto.
+ * default.c (set_default_suffixes): Ditto.
+
+2009-06-09 Paul Smith <psmith@gnu.org>
+
+ * commands.c (set_file_variables): If always_make_flag is set,
+ always add the prereq to $?. Fixes Savannah bug #17825.
+
+ * remake.c (update_file_1): When rebuilding deps of FILE, also try
+ to rebuild the deps of all the also_make targets for that file.
+ Fixes Savannah bug #19108.
+
+ * implicit.c (pattern_search): Undo test for is_target, added by
+ BorisK on 21 Sep 2004. This goes against step 5c in the "Implicit
+ Rule Search Algorithm". Fixes Savannah bug #17752.
+
+ * main.c (clean_jobserver): Clear the jobserver_fds options and
+ set job_slots to the default when we clean up.
+ (define_makeflags): Return the new MAKEFLAGS value.
+ (main): Reset MAKEFLAGS in the environment when we re-exec.
+ Fixes Savannah bug #18124.
+
+2009-06-08 Paul Smith <psmith@gnu.org>
+
+ * read.c (eval): Collapse continuations post-semicolon on target-
+ specific variables. Fixes Savannah bug #17521.
+
+2009-06-07 Paul Smith <psmith@gnu.org>
+
+ * job.c (reap_children): For older systems without waitpid() (are
+ there any of these left?) run wait(2) inside EINTRLOOP to handle
+ EINTR errors. Fixes Savannah bug #16401.
+
+ * (various): Debug message cleanup. Fixes Savannah bug #16469.
+
+ * main.c: Fix bsd_signal() typedef. Fixes Savannah bug #16473.
+
+ * file.c (snap_deps): Set SNAPPED_DEPS at the start of snapping,
+ not the end, to catch second expansion $(eval ...) defining new
+ target/prereq relationships during snap_deps.
+ Fixes Savannah bug #24622.
+
+ * read.c (record_files): The second-expansion "f->updating" hack
+ was not completely correct: if assumed that the target with
+ commands always had prerequisites; if one didn't then the ordering
+ was messed up. Fixed for now to use f->updating to decide whether
+ to preserve the last element in the deps list... but this whole
+ area of constructing and reversing the deps list is too confusing
+ and needs to be reworked. Fixes Savannah bug #21198.
+
+2009-06-06 Paul Smith <psmith@gnu.org>
+
+ * hash.c (hash_insert): Remove useless test for NULL.
+ Fixes Savannah bug #21823.
+
+ * make.h: Move SET_STACK_SIZE determination to make.h.
+ * main.c (main): New global variable, STACK_LIMIT, holds the
+ original stack limit when make was started.
+ * job.c (start_job_command): Reset the stack limit, if we changed it.
+ Fixes Savannah bug #22010.
+
+ * remake.c (check_dep): Only set the target's state to not-started
+ if it's not already running. Found this while testing -j10 builds
+ of glibc: various targets were being rebuilt multiple times.
+ Fix from Knut St. Osmundsen; fixes a problem reported in Savannah
+ bug #15919.
+
+ * read.c (multi_glob): Don't pass GLOB_NOCHECK to glob(3); instead
+ handle the GLOB_NOMATCH error. This is to work around Sourceware.org
+ Bugzilla bug 10246.
+
+2009-06-04 Paul Smith <psmith@gnu.org>
+
+ * read.c (eval): Skip initial whitespace (ffeed, vtab, etc.)
+
+ * maintMakefile: Modify access of config and gnulib Savannah
+ modules to use GIT instead of CVS.
+
+ * main.c (main): Initialize the LENGTH field in SHELL_VAR.
+ Fixes Savannah bug #24655.
+
+ * read.c (eval_buffer): Don't dereference reading_file if it's NULL;
+ this can happen during some invocations of $(eval ...) for example.
+ Fixes Savannah bug #24588. Patch by Lars Jessen <ljessen@ljessen.dk>
+
+2009-06-02 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Check for fileno()
+ * read.c (eval_makefile): If fileno() is available, set CLOSE_ON_EXEC
+ for the makefile file so invocations of $(shell ...) don't inherit it.
+ Fixes Savannah bug #24277.
+
+2009-06-01 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): The previous fix for .DEFAULT_GOAL had issues;
+ expansion was handled incorrectly. Rework the default goal
+ handling to save the variable only. Remove default_goal_file and
+ default_goal_name.
+ * read.c (eval): Check default_goal_var, not default_goal_name.
+ * read.c (record_target_var): Don't check default_goal_file here.
+
+2009-05-31 Paul Smith <psmith@gnu.org>
+
+ * main.c (main): Expand the .DEFAULT_GOAL variable before using
+ it, and if the multi_glob() returns nothing (say it expanded to
+ nothing but spaces) then don't crash. Fixes Savannah bug #25697.
+
+ * doc/make.texi (Quick Reference): Add $(if ..), $(or ..), and
+ $(and ..) to the reference. Fixes Savannah bug #25694.
+
+ * make.1: Be clear that some recipes will be executed even with -n.
+ * doc/make.texi: Ditto. Fixes Savannah bug #25460.
+
+ * doc/make.texi (Override Directive): Make more clear how
+ overrides and appends interact.
+ Elucidates part of Savannah bug #26207.
+
+ * read.c (record_target_var): Don't reset the origin on
+ target-specific variables; try_variable_definition() will handle
+ this correctly. Fixes Savannah bug #26207.
+
+ * maintMakefile (do-po-update): Copy PO files into $(top_srcdir).
+ Fixes Savannah bug #25712.
+
+ * implicit.c (pattern_search): Keep a pointer to the beginning of
+ the filename and save that instead of the constructed pointer.
+ Fixes Savannah bug #26593.
+ Patch by Mark Seaborn <mrs@mythic-beasts.com>
+
+2009-05-30 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Multi-Line): Add a description of the new abilities
+ of define/endef. Rename "Sequences" to "Multi-Line" and fix some
+ "command sequence" vs. "recipe" syntax.
+ * read.c (do_define): Modify to allow assignment tokens (=, :=, etc.)
+ after a define, to create variables with those flavors.
+
+2009-05-25 Paul Smith <psmith@gnu.org>
+
+ Reworked the parser for variable assignments to allow multiple
+ modifiers, and in any order. Also allows variable and
+ prerequisites to be modifier names ('export', 'private', etc.)
+
+ * NEWS: Add notes about user-visible changes.
+
+ * read.c (struct vmodifiers): Remember what modifiers were seen.
+ (parse_var_assignment): New function to parse variable assignments.
+ (eval): Call the new function. Handle variable assignments earlier.
+
+ * variable.c (parse_variable_definition): Only parse; don't create var.
+ (assign_variable_definition): Call parse, then create the var.
+
+2009-05-24 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi: Fix the ISBN for the GNU make manual. Incorrect
+ value noticed by Hans Stol <hans.stol@nc3a.nato.int>.
+
+2009-03-14 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/pathstuff.c (convert_Path_to_windows32): Fix last change.
+ Fixes Savannah bug #25412.
+
+ * w32/subproc/sub_proc.c <top level>: Update Copyright years. Add
+ prototype for xmalloc.
+ (find_file): Accept 3 arguments PATH_VAR, FULL_FNAME, and FULL_LEN
+ instead of an LPOFSTRUCT pointer. Use xmalloc instead of malloc.
+ Loop over an array of extensions, instead of duplicating the same
+ code inline. Use SearchPath followed by CreateFile, instead of
+ the obsolete OpenFile. Fixes Savannah bug #17277.
+ (process_begin): Find $(PATH) in `envp', and pass a pointer to it
+ to `find_file'. Fixes Savannah bug #25662.
+
+2009-03-07 Eli Zaretskii <eliz@gnu.org>
+
+ * function.c (func_shell): Don't close pipedes[1] if it is -1.
+ Fixes Savannah bug #20495.
+
+2009-02-28 Ralf Wildenhues <address@hidden>
+
+ * doc/make.texi (Instead of Execution): Document interaction of
+ -t with phony targets.
+
+2009-02-23 Ramon Garcia <ramon.garcia.f@gmail.com>
+
+ Introduce a new keyword "private" which applies to target-specific
+ variables and prevents their values from being inherited.
+
+ * variable.h (struct variable): Add private_var flag to each variable.
+ Add a flag to specify which list entry switches to the parent target.
+ * variable.c (define_variable_in_set): Initialize private_var flag.
+ (lookup_variable): Skip private variables in parent contexts.
+ (initialize_file_variables): Set next_is_parent appropriately.
+ (print_variable): Show the private_var flag.
+ * read.c (eval): Recognize the private keyword.
+ (record_target_var): Set private_var.
+ * doc/make.texi (Suppressing Inheritance): Add documentation.
+
+2008-10-26 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Check for strndup().
+ * misc.c (xstrndup): Rename savestring to xstrndup. Use strndup
+ if it's available.
+ * make.h: Rename savestring to xstrndup.
+ * commands.c (chop_commands): Ditto.
+ * function.c (func_foreach): Ditto.
+ * read.c (eval, record_files): Ditto.
+ * variable.c (define_variable_in_set): Ditto.
+
+2008-09-30 Eli Zaretskii <eliz@gnu.org>
+
+ * build_w32.bat (GCCBuild): Use "-gdwarf-2 -g3" instead of
+ "-gstabs+ -ggdb3".
+
+ * w32/subproc/build.bat (GCCBuild): Likewise.
+
+2008-09-30 David Russo <d-russo@ti.com> (tiny change)
+
+ * job.c (construct_command_argv_internal): Avoid extra backslash
+ in batch-mode Unixy shells. Under DB_JOBS, display the contents
+ of the batch file.
+
+2008-05-31 Eli Zaretskii <eliz@gnu.org>
+
+ * README.W32.template: Remove obsolete text about non-support for
+ -jN without Unixy shell. Remove obsolete text about not supplying
+ Visual Studio project files (we do supply them). Modify text to
+ prefer GCC builds to MSC builds.
+
+2008-04-02 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * doc/make.texi (Empty Targets): Fix typo.
+
+2008-03-27 Paul Smith <psmith@gnu.org>
+
+ Fix Savannah bug #22379:
+ * ar.c (ar_glob_match): Zero the allocated structure.
+ * read.c (parse_file_seq): Ditto.
+
+2008-03-08 Brian Dessent <brian@dessent.net>
+
+ * maintMakefile: Update Translation Project location.
+
+2008-01-26 Eli Zaretskii <eliz@gnu.org>
+
+ * variable.c (target_environment): Don't use shell_var if its
+ `value' field is NULL.
+
+2007-12-22 Eli Zaretskii <eliz@gnu.org>
+
+ Suggested by Juan Manuel Guerrero <juan.guerrero@gmx.de>:
+
+ * Makefile.DOS.template (info_TEXINFOS): Remove unused variable.
+ (TEXINFOS): Value changed to `doc/make.texi'.
+ (.SUFFIXES): Use .texi instead of .texinfo.
+ (make.info, make.dvi): Depend on doc/make.texi.
+ (.texi.info): New target, instead of ".texinfo.info". Change -I
+ switch to $(MAKEINFO) to look in doc/. Use --no-split.
+ (.texi): New target, instead of ".texinfo". Change -I switch to
+ $(MAKEINFO) to look in doc/. Use --no-split.
+ (.texi.dvi): New target, instead of ".texinfo.dvi". Change -I
+ switch to $(MAKEINFO) to look in doc/.
+ (install-info-am, uninstall-info): Don't look for "*.i[0-9]" and
+ "*.i[0-9][0-9]" (due to --no-split above).
+ (noinst_TEXINFOS, TEXI2HTML, TEXI2HTML_FLAGS): New variables.
+ (html, make_1.html): New targets.
+ (.PHONY): Add "html".
+ (.SUFFIXES): Add .html.
+
+2007-12-22 Juan Manuel Guerrero <juan.guerrero@gmx.de> (tiny change)
+
+ * configh.dos.template [__DJGPP__]: Replace HAVE_SYS_SIGLIST with
+ HAVE_DECL_SYS_SIGLIST.
+
+ * job.c (child_execute_job): Remove __MSDOS__ because MSDOS/DJGPP
+ build does not use child_execute_job.
+
+ * variable.c (define_automatic_variables) [__MSDOS__]: Always
+ export the SHELL environment variable to the child.
+
+2007-12-22 Eli Zaretskii <eliz@gnu.org>
+
+ * config.h.W32: Include sys/types.h.
+ [!_PID_T_] (pid_t): Define only if not already defined by sys/types.h.
+
+ * vpath.c (construct_vpath_list) [HAVE_DOS_PATHS]: Support VPATH
+ values that use `:' in drive letters, when PATH_SEPARATOR_CHAR is
+ also `:'.
+
+2007-11-04 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi: Convert references to "commands", "command
+ lines", and "command script" to "recipe".
+ * NEWS: Ditto.
+ * commands.c, file.c, job.c, remake.c, read.c, variable.c, main.c:
+ Ditto.
+
+2007-10-27 Bruno Haible <bruno@clisp.org>
+
+ * remake.c (f_mtime): Print time difference values between 100 and
+ ULONG_MAX in fixed-point notation rather than in exponention notation.
+
+2007-10-12 Eli Zaretskii <eliz@gnu.org>
+
+ * variable.c (do_variable_definition): Allow $(SHELL) to expand to
+ a more complex value than a simple shell: if it's not a default
+ shell now then expand it and see if is a default shell then.
+
+2007-10-10 Eli Zaretskii <eliz@gnu.org>
+
+ * dir.c (find_directory) [WINDOWS32]: Remove trailing slashes from
+ pathnames, with const strings.
+ * build_w32.bat [WINDOWS32]: If no config.h.W32 exists, create one
+ from the template (used for building from CVS, not a dist).
+
+2007-10-10 Paul Smith <psmith@gnu.org>
+
+ * make.h: Add a prototype for w32_kill() (change suggested by
+ Yongwei Wu <wuyongwei@gmail.com>).
+
+2007-09-21 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/pathstuff.c (convert_Path_to_windows32): Handle quoted
+ directories in Path.
+
+2007-09-12 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi: Applied wording cleanups from Savannah patch #6195.
+ Provided by Diego Biurrun <diego@biurrun.de>
+ (Complex Makefile): Remove .PHONY setting for tar: patch #6196.
+ Provided by Diego Biurrun <diego@biurrun.de>
+
+2007-09-11 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Special Variables): Moved this into the "How to
+ Use Variables" chapter. Added a table entry for .RECIPEPREFIX.
+ (MAKEFILE_LIST) No longer a section; this was added into the
+ "Special Variables" section.
+ (Rule Introduction): Reference .RECIPEPREFIX.
+ (Simple Makefile): Ditto.
+ (Rule Syntax): Ditto.
+ (Command Syntax): Ditto.
+ (Error Messages): Ditto.
+
+2007-09-10 Paul Smith <psmith@gnu.org>
+
+ * commands.c (print_commands): Don't print an extra line in the
+ command scripts. Prefix the command scripts with cmd_prefix, not \t.
+
+ * read.c (construct_include_path): Add the full string to the cache; we
+ were chopping the last char.
+
+ * NEWS: Announce the .RECIPEPREFIX special variable.
+ * variable.c (lookup_special_var): Rename from handle_special_var().
+ (lookup_variable): Call the new name.
+ (set_special_var): New function: handle setting of special variables.
+ When setting .RECIPEPREFIX, reset the cmd_prefix global variable.
+ (do_variable_definition): Call it.
+ * make.h (RECIPEPREFIX_DEFAULT): Define the default command prefix char.
+ (RECIPEPREFIX_NAME): Define the command prefix special variable name.
+ * main.c (main): Create the .RECIPEPREFIX special variable.
+ * read.c (eval): Remove the cmd_prefix characters from the command
+ scripts here, so they're not stored in the commands array at all,
+ rather than waiting and stripping them out during command construction.
+ * job.c (construct_command_argv_internal): Don't skip cmd_prefix here.
+
+2007-08-15 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (GNU Free Documentation License): The fdl.texi
+ file has had the section info removed, so add some to make.texi
+ before we include it.
+
+2007-08-15 Icarus Sparry <savannah@icarus.freeuk.com>
+
+ * remake.c (check_dep): Reset the target state for intermediate
+ files. They might have been considered before but not updated
+ then (order-only for example) but they will be this time.
+ Fixes Savannah bug #'s 3330 and 15919.
+
+2007-07-21 Eli Zaretskii <eliz@gnu.org>
+
+ Fix Savannah bug #20549:
+ * function.c (func_shell): Call construct_command_argv with zero
+ value of FLAGS.
+ * job.c (construct_command_argv_internal): New argument FLAGS; all
+ callers changed.
+ [WINDOWS32]: If FLAGS has the COMMANDS_RECURSE bit set, ignore
+ just_print_flag.
+ * job.h (construct_command_argv_internal): Update prototype.
+
+2007-07-13 Paul Smith <psmith@gnu.org>
+
+ * file.c (expand_deps): Use variable_buffer as the start of the
+ buffer, not the original pointer (in case it was reallocated).
+ Fix suggested by Rafi Einstein <rafi.einstein@formalism-labs.com>.
+ Fixes Savannah bug #20452.
+
+2007-07-04 Paul Smith <psmith@gnu.org>
+
+ * (ALL FILES): Update to GPLv3.
+ * (ALL FILES): Update copyright for 2007.
+
+ * main.c (print_version): Move the host type info to the second line.
+
+2007-06-29 Thiemo Seufer <ths@mips.com>
+
+ * maintMakefile: Update Translation Project location.
+
+2007-06-13 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (Reading Makefiles): "Expansion of deferred" ->
+ "Expansion of a deferred"
+ Fixes Savannah bug #20018.
+
+ * expand.c (variable_expand_for_file): Preserve the value of
+ reading_file rather than setting it to 0 at the end.
+ Fixes Savannah bug #20033.
+
+2007-05-11 Paul Smith <psmith@gnu.org>
+
+ * job.c (new_job): Add debug info to specify where make found the
+ command script it is running to build a target.
+ Fixes Savannah bug #18617.
+
+ * default.c (default_suffixes,default_suffix_rules,default_variables):
+ Add support for Objective C. Fixes Savannah bug #16389.
+ Based on a patch provided by Peter O'Gorman <peter@pogma.com>.
+
+ * function.c (func_lastword): Initialize p.
+
+ * doc/make.texi (Eval Function, Implicit Variables, Special Targets):
+ Doc fixes noticed by Bob <twobanjobob@sbcglobal.net>. Patch from
+ Dave Korn <dave.korn@artimi.com>
+
+2007-05-08 Paul Smith <psmith@gnu.org>
+
+ Fix Savannah bug #19656:
+
+ * configure.in: Check for strcasecmp(), strcmpi(), and stricmp().
+
+ * make.h: Change all case-insensitive string compares to use
+ strcasecmp() (from POSIX). If we don't have that but do have one
+ of the others, define strcasecmp to be one of those instead. If
+ we don't have any, declare a prototype for our own version.
+
+ * misc.c (strcasecmp): Use this if we can't find any native
+ case-insensitive string comparison function.
+ * vmsfunctions.c: Remove strcmpi(); we'll use misc.c:strcasecmp().
+ * main.c (find_and_set_default_shell): Use strcasecmp() instead of
+ strcmpi().
+ * job.c (_is_unixy_shell, construct_command_argv_internal): Use
+ strcasecmp() instead of stricmp().
+ * hash.h (ISTRING_COMPARE, return_ISTRING_COMPARE): Use strcasecmp()
+ instead of strcmpi().
+ * acinclude.m4: Remove the strcasecmp() check from here.
+
+2007-03-21 Paul Smith <psmith@gnu.org>
+
+ * configure.in: Don't turn on case-insensitive file system support
+ if --disable-... is given. Fixes Savannah bug #19348.
+
+2007-03-19 Paul Smith <psmith@gnu.org>
+
+ * ALL: Use the strcache for all file name strings, or other
+ strings which we will never free. The goal is to save memory by
+ avoiding duplicate copies of strings. However, at the moment this
+ doesn't save much memory in most situations: due to secondary
+ expansion we actually save prerequisite lists twice (once before
+ the secondary expansion, and then again after it's been parsed
+ into individual file names in the dep list). We will resolve this
+ in a future change, by doing the parsing up-front for targets
+ where secondary expansion is not set.
+
+ Moving things into the strcache also allows us to use const
+ pointers in many more places.
+
+2007-01-03 Paul Smith <psmith@gnu.org>
+
+ * make.h (ENULLLOOP): Reset errno after each failed invocation of
+ the function, not just the first. Fixes Savannah bug #18680.
+
+2006-11-18 Paul Smith <psmith@gnu.org>
+
+ * strcache.c (strcache_add_len): Don't allocate a new buffer
+ unless the string is not already nil-terminated. Technically this
+ is a violation of the standard, since we may be passed an array
+ that is not long enough to test one past. However, in make this
+ is never true since we only use nil-terminated strings or
+ sub-strings thereof.
+
+ * read.c (eval, do_define): Use cmd_prefix instead of '\t'.
+
+ * main.c: New global cmd_prefix, defaults to '\t'.
+ * job.c (construct_command_argv_internal): Use cmd_prefix instead
+ of '\t'.
+
+ * dir.c: Constified.
+ (dir_contents_file_exists_p): Check for an error return from
+ readdir(), just in case.
+
+ * commands.c: Constified.
+ * default.c: Constified.
+ * expand.c: Constified.
+ * function.c: Partial constification.
+ * variable.c: Partial constification.
+ * vmsify.c: Constification. Hard to test this but I hope I didn't
+ screw it up!
+ * vpath.c: Partial constification.
+ * w32/pathstuff.c: Partial constification.
+
+2006-11-16 Eli Zaretskii <eliz@gnu.org>
+
+ * main.c (main) [HAVE_DOS_PATHS]: Treat DOS style argv[0] with
+ backslashes and drive letters as absolute.
+
+2006-10-22 Paul Smith <psmith@gnu.org>
+
+ * main.c (struct command_switch): Use const and void*.
+
+2006-10-21 Paul Smith <psmith@gnu.org>
+
+ * ar.c: Constified.
+ * arscan.c: Constified.
+
+2006-09-30 Paul Smith <psmith@gnu.org>
+
+ * doc/make.texi (MAKEFILE_LIST Variable): Modify reference to
+ point to lastword since the example was updated.
+ Fixes Savannah bug #16304.
+ (Secondary Expansion): Correct example description.
+ Fixes Savannah bug #16468.
+ (Makefile Contents): Clarify that comments cannot appear within
+ variable references or function calls.
+ Fixes Savannah bug #16577.
+ (Special Targets): Clarify how .NOTPARALLEL works in recursion.
+ Fixes Savannah bug #17701.
+ Reported by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>:
+ (Prerequisite Types): Added an example of using order-only
+ prerequisites. Fixes Savannah bug #17880.
+ (Rule Syntax): "lise" -> "list"
+ (Multiple Rules): ... -> @dots{}
+ (Splitting Lines): ditto.
+
+ * remake.c (update_file_1): Prereqs that don't exist should be
+ considered changed, for the purposes of $?.
+ Fixes Savannah bug #16051.
+
+ * make.1: Remove extraneous "+".
+ Fixes Savannah bug #16652.
+
+2006-09-06 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Include sys/types.h when checking for sys/wait.h.
+
+2006-08-18 Eli Zaretskii <eliz@gnu.org>
+
+ * configure.in (PATH_SEPARATOR_CHAR): Define to the value of
+ $PATH_SEPARATOR.
+
+ * make.h (PATH_SEPARATOR_CHAR): Define only if still undefined.
+ Normally, it is defined in config.h.
+
+ * config/dospaths.m4 <ac_cv_dos_paths>: Define to yes on Cygwin as
+ well.
+
+ * job.c (construct_command_argv_internal) [HAVE_DOS_PATHS]: Define
+ sh_chars_sh for Windows platforms that emulate Unix.
+
+2006-05-07 Paul D. Smith <psmith@gnu.org>
+
+ * README.OS2.template: Updates provided by Andreas Buening
+ <andreas.buening@nexgo.de>.
+
+2006-04-30 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Include <direct.h> if HAVE_DIRECT_H.
+ * config.h.W32.template (HAVE_DIRECT_H): Set it if it's available.
+
+2006-04-26 Paul D. Smith <psmith@gnu.org>
+
+ * README.cvs: Add a reminder to notify the GNU translation robot.
+
+ * doc/make.texi: Change @direcategory (requested by Karl Berry).
+
+2006-04-20 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile (po-check): Use Perl instead of grep -E, for systems
+ that don't have extended grep.
+ (cvsclean): Use $(PERL) instead of perl.
+
+2006-04-09 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile: Add some extra warning options (GCC 4.1 only?)
+
+ * expand.c, implicit.c, main.c, read.c: Rename variables so that
+ inner-scope variables don't mask outer-scope variables.
+
+ * ar.c, arscan.c, commands.c, default.c, dir.c, expand.c, file.c:
+ * function.c, getloadavg.c, implicit.c, job.c, main.c, misc.c, read.c:
+ * remake.c, remote-cstms.c, rule.c, strcache.c, variable.c:
+ * vmsfunctions.c, vmsify.c, vpath.c: Remove all casts of returned
+ values from memory allocation functions: they return void* and so
+ don't need to be cast. Also remove (char *) casts of arguments to
+ xrealloc().
+
+ * configure.in: Remove checks for memcpy/memmove/strchr.
+
+ * make.h: Remove bcmp/bcopy/bzero/strchr/strrchr macros.
+
+ * ar.c, arscan.c, commands.c, dir.c: Convert all bzero/bcopy/bcmp
+ calls to memset/memcpy/memmove/memcmp calls.
+ * expand.c, file.c, function.c, getloadavg.c, implicit.c: Ditto.
+ * job.c, main.c, misc.c, read.c, remake.c, rule.c: Ditto.
+ * variable.c, vpath.c: Ditto.
+
+ * make.h (EXIT_FAILURE): Should be 1, not 0.
+
+2006-04-06 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Removed AM_C_PROTOTYPES. Starting now on we
+ require an ISO C 1989 standard compiler and runtime library.
+
+ * Makefile.am: Remove the ansi2knr feature.
+
+ * make.h: Remove the PARAMS() macro definition and all uses of it.
+
+ * amiga.h, ar.c, arscan.c: Remove all uses of the PARAMS() macro.
+ * commands.c, commands.h, config.h-vms.template: Ditto.
+ * dep.h, dir.c, expand.c, filedef.h, function.c: Ditto.
+ * implicit.c, job.c, job.h, main.c, read.c, remake.c: Ditto.
+ * rule.c, rule.h, variable.h, vmsdir.h, vmsjobs.c, vpath.c: Ditto.
+
+ * NEWS: Update.
+
+2006-04-01 Paul D. Smith <psmith@gnu.org>
+
+ Version 3.81 released.
+
+ * NEWS: Updated for 3.81.
+
+ * README.cvs: Mention that vpath builds are not supported out of
+ CVS. Fixes Savannah bug #16236.
+ Remove update of make.texi from the list of things to do; we use
+ version.texi now.
+
+2006-03-26 Paul D. Smith <psmith@gnu.org>
+
+ * doc/make.texi: Clean up licensing. Use @copying and version.texi
+ support from automake, as described in the Texinfo manual.
+
+2006-03-25 Eli Zaretskii <eliz@gnu.org>
+
+ * implicit.c (pattern_search) [HAVE_DOS_PATHS]: Don't compare b
+ with lastslash, since the latter points to filename, not to
+ target.
+ * job.c (construct_command_argv_internal) [HAVE_DOS_PATHS]:
+ Declare and define sh_chars_sh[].
+
+2006-03-23 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Look for build.sh.in in $srcdir so it will be
+ built for remote configurations as well.
+
+ * Makefile.am: Make sure to clean up build.sh during distclean.
+ Fixes Savannah bug #16166.
+
+ * misc.c (log_access): Takes a const char *.
+ * function.c (fold_newlines): Takes an unsigned int *.
+ Both fixes for Savannah bug #16170.
+
+2006-03-22 Boris Kolpackov <boris@kolpackov.net>
+
+ * implicit.c (pattern_search): Call set_file_variables only
+ if we have prerequisites that need second expansion. Fixes
+ Savannah bug #16140.
+
+2006-03-19 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_file): Add alloca(0) to clean up alloca'd
+ memory on hosts that don't support it directly.
+
+ * README.cvs: Add information on steps for making a release (to
+ make sure I don't forget any).
+
+ * main.c (clean_jobserver): Move jobserver cleanup code into a new
+ function.
+ (die): Cleanup code was removed from here; call the new function.
+ (main): If we are re-execing, clean up the jobserver first so we
+ don't leak file descriptors.
+ Reported by Craig Fithian <craig.fithian@citigroup.com>
+
+2006-03-17 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile (do-po-update): Rewrite this rule to clean up and
+ allow multiple concurrent runs.
+ Patch from Joseph Myers <joseph@codesourcery.com>
+
+2006-03-17 Boris Kolpackov <boris@kolpackov.net>
+
+ * dep.h (struct dep): Add the stem field.
+ * misc.c (alloc_dep, free_dep): New functions.
+ (copy_dep_chain): Copy stem.
+ (free_dep_chain): Use free_dep.
+ * read.c (record_files): Store stem in the dependency line.
+ * file.c (expand_deps): Use stem stored in the dependency line. Use
+ free_dep_chain instead of free_ns_chain.
+ * implicit.c (pattern_search): Use alloc_dep and free_dep.
+ * read.c (read_all_makefiles, eval_makefile, eval): Ditto.
+ * main.c (main, handle_non_switch_argument): Ditto.
+ * remake.c (check_dep): Ditto.
+ * rule.c (convert_suffix_rule, freerule): Ditto.
+
+2006-03-14 Paul D. Smith <psmith@gnu.org>
+
+ * expand.c (variable_append): Instead of appending everything then
+ expanding the result, we expand (or not, if it's simple) each part
+ as we add it.
+ (allocated_variable_append): Don't expand the final result.
+ Fixes Savannah bug #15913.
+
+2006-03-09 Paul Smith <psmith@gnu.org>
+
+ * remake.c (update_file_1): Revert the change of 3 Jan 2006 which
+ listed non-existent files as changed. Turns out there's a bug in
+ the Linux kernel builds which means that this change causes
+ everything to rebuild every time. We will re-introduce this fix
+ in the next release, to give them time to fix their build system.
+ Fixes Savannah bug #16002.
+ Introduces Savannah bug #16051.
+
+ * implicit.c (pattern_search) [DOS_PATHS]: Look for DOS paths if
+ we *don't* find UNIX "/".
+ Reported by David Ergo <david.ergo@alterface.com>
+
+2006-03-04 Eli Zaretskii <eliz@gnu.org>
+
+ * variable.c (do_variable_definition) [WINDOWS32]: Call the shell
+ locator function find_and_set_default_shell if SHELL came from the
+ command line.
+
+2006-02-20 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (merge_variable_set_lists): It's legal for *setlist0
+ to be null; don't core in that case.
+
+2006-02-19 Paul D. Smith <psmith@gnu.org>
+
+ * commands.c (set_file_variables): Realloc, not malloc, the static
+ string values to avoid memory leaks.
+
+ * expand.c (recursively_expand_for_file): Only set reading_file to
+ an initialized value.
+
+ * implicit.c (pattern_search): We need to make a copy of the stem
+ if we get it from an intermediate dep, since those get freed.
+
+ * file.c (lookup_file) [VMS]: Don't lowercase special targets that
+ begin with ".".
+ (enter_file) [VMS]: Ditto.
+ Patch provided by Hartmut Becker <Hartmut.Becker@hp.com>.
+
+2006-02-24 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (construct_command_argv_internal): Fix last change.
+
+ * w32/subproc/sub_proc.c (process_pipe_io): Make dwStdin,
+ dwStdout, and dwStderr unsigned int: avoids compiler warnings in
+ the calls to _beginthreadex.
+
+ * expand.c (recursively_expand_for_file): Initialize `save' to
+ prevent compiler warnings.
+
+2006-02-18 Eli Zaretskii <eliz@gnu.org>
+
+ * job.c (construct_command_argv_internal): Don't create a temporary
+ script/batch file if we are under -n. Call _setmode to switch the
+ script file stream to text mode.
+
+2006-02-17 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (merge_variable_set_lists): Don't try to merge the
+ global_setlist. Not only is this useless, but it can lead to
+ circularities in the linked list, if global_setlist->next in one
+ list gets set to point to another list which also ends in
+ global_setlist.
+ Fixes Savannah bug #15757.
+
+2006-02-15 Paul D. Smith <psmith@gnu.org>
+
+ Fix for Savannah bug #106.
+
+ * expand.c (expanding_var): Keep track of which variable we're
+ expanding. If no variable is being expanded, it's the same as
+ reading_file.
+ * make.h (expanding_var): Declare it.
+ * expand.c (recursively_expand_for_file): Set expanding_var to the
+ current variable we're expanding, unless there's no file info in
+ it (could happen if it comes from the command line or a default
+ variable). Restore it before we exit.
+ * expand.c (variable_expand_string): Use the expanding_var file
+ info instead of the reading_file info.
+ * function.c (check_numeric): Ditto.
+ (func_word): Ditto.
+ (func_wordlist): Ditto.
+ (func_error): Ditto.
+ (expand_builtin_function): Ditto.
+ (handle_function): Ditto.
+
+2006-02-14 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval): Even if the included filenames expands to the
+ empty string we still need to free the allocated buffer.
+
+ * implicit.c (pattern_search): If we allocated a variable set for
+ an impossible file, free it.
+ * variable.c (free_variable_set): New function.
+ * variable.h: Declare it.
+
+ * read.c (read_all_makefiles): Makefile names are kept in the
+ strcache, so there's never any need to alloc/free them.
+ (eval): Ditto.
+
+ * main.c (main): Add "archives" to the .FEATURES variable if
+ archive support is enabled.
+ * doc/make.texi (Special Variables): Document it.
+
+2006-02-13 Paul D. Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Add checking for DOS pathnames to
+ the pattern rule target LASTSLASH manipulation.
+ Fixes Savannah bug #11183.
+
+2006-02-11 Paul D. Smith <psmith@gnu.org>
+
+ * (ALL FILES): Updated copyright and license notices.
+
+2006-02-10 Paul D. Smith <psmith@gnu.org>
+
+ A new internal capability: the string cache is a read-only cache
+ of strings, with a hash table interface for fast lookup. Nothing
+ in the cache will ever be freed, so there's no need for reference
+ counting, etc. This is the beginning of a full solution for
+ Savannah bug #15182, but for now we only store makefile names here.
+
+ * strcache.c: New file. Implement a read-only string cache.
+ * make.h: Add prototypes for new functions.
+ * main.c (initialize_global_hash_tables): Initialize the string cache.
+ (print_data_base): Print string cache stats.
+ * read.c (eval_makefile): Use the string cache to store makefile
+ names. Rewrite the string allocation to be sure we free everything.
+
+2006-02-10 Eli Zaretskii <eliz@gnu.org>
+
+ * dir.c (dir_contents_file_exists_p): Don't opendir if the
+ directory time stamp didn't change, except on FAT filesystems.
+ Suggested by J. David Bryan <jdbryan@acm.org>.
+
+2006-02-09 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_or): Implement a short-circuiting OR function.
+ (func_and): Implement a short-circuiting AND function.
+ (function_table_init): Update the table with the new functions.
+ * doc/make.texi (Conditional Functions): Changed the "if" section
+ to one on general conditional functions. Added documentation for
+ $(and ...) and $(or ...) functions.
+ * NEWS: Note new $(and ...) and $(or ...) functions.
+
+2006-02-08 Boris Kolpackov <boris@kolpackov.net>
+
+ * job.h (struct child): Add the dontcare bitfield.
+ * job.c (new_job): Cache dontcare flag.
+ * job.c (reap_children): Use cached dontcare flag instead of the
+ one in struct file. Fixes Savannah bug #15641.
+
+2006-02-06 Paul D. Smith <psmith@gnu.org>
+
+ * vpath.c (selective_vpath_search): If the file we find has a
+ timestamp from -o or -W, use that instead of the real time.
+ * remake.c (f_mtime): If the mtime is a special token from -o or
+ -W, don't overwrite it with the real mtime.
+ Fixes Savannah bug #15341.
+
+ Updates from Markus Mauhart <qwe123@chello.at>:
+
+ * w32/subproc/sub_proc.c (process_begin): Remove no-op tests.
+ (process_signal, process_last_err, process_exit_code): Manage
+ invalid handle values.
+ (process_{outbuf,errbuf,outcnt,errcnt,pipes}): Unused and don't
+ manage invalid handles; remove them.
+ * job.c (start_job_command) [WINDOWS32]: Jump out on error.
+ * config.h.W32.template [WINDOWS32]: Set flags for Windows builds.
+ * README.cvs: Updates for building from CVS.
+
+2006-02-05 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (enter_file): Keep track of the last double_colon entry,
+ to avoid walking the list every time we want to add a new one.
+ Fixes Savannah bug #15533.
+ * filedef.h (struct file): Add a new LAST pointer.
+
+ * dir.c (directory_contents_hash_cmp): Don't use subtraction to do
+ the comparison. For 64-bits systems the result of the subtraction
+ might not fit into an int. Use comparison instead.
+ Fixes Savannah bug #15534.
+
+ * doc/make.texi: Update the chapter on writing commands to reflect
+ the changes made in 3.81 for backslash/newline and SHELL handling.
+
+2006-02-01 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (dir_contents_file_exists_p) [WINDOWS32]: Make sure
+ variable st is not used when it's not initialized.
+ Patch from Eli Zaretskii <eliz@gnu.org>.
+
+2006-01-31 Paul D. Smith <psmith@gnu.org>
+
+ * README.W32.template: Applied patch #4785 from
+ Markus Mauhart <qwe123@chello.at>.
+ * README.cvs: Applied patch #4786 from
+ Markus Mauhart <qwe123@chello.at>.
+ * make_msvc_net2003.vcproj [WINDOWS32]: New version from
+ J. Grant <jg@jguk.org>.
+
+ * main.c: Update the copyright year in the version output.
+ * prepare_w32.bat: Remove this file from the distribution.
+
+2006-01-21 Eli Zaretskii <eliz@gnu.org>
+
+ * remake.c (update_goal_chain): Set g->changed instead of
+ incrementing it, as it is only 8-bit wide, and could overflow if
+ many commands got started in update_file.
+
+ * w32/include/sub_proc.h: Add a prototype for process_used_slots.
+
+ * w32/subproc/sub_proc.c: Change dimension of proc_array[] to
+ MAXIMUM_WAIT_OBJECTS.
+ (process_wait_for_any_private): Change dimension of handles[]
+ array to MAXIMUM_WAIT_OBJECTS.
+ (process_used_slots): New function.
+ (process_register): Don't register more processes than the
+ available number of slots.
+ (process_easy): Don't start new processes if all slots are used up.
+
+ * job.c (load_too_high, start_waiting_jobs) [WINDOWS32]: If there
+ are already more children than sub_proc.c can handle, behave as if
+ the load were too high.
+ (start_job_command): Fix a typo in error message when process_easy
+ fails.
+
+2006-01-14 Eli Zaretskii <eliz@gnu.org>
+
+ * main.c (main) [WINDOWS32]: Don't refuse to run with -jN, even if
+ the shell is not sh.exe.
+
+ * job.c (create_batch_file): Renamed from create_batch_filename;
+ all callers changed. Don't close the temporary file; return its
+ file descriptor instead. New arg FD allows to return the file
+ descriptor.
+ (construct_command_argv_internal): Use _fdopen instead of fopen to
+ open the batch file.
+
+2006-01-04 Paul D. Smith <psmith@gnu.org>
+
+ * readme.vms: Updates for case-insensitive VMS file systems from
+ Hartmut Becker <Hartmut.Becker@hp.com>.
+ * dir.c (vms_hash): Ditto.
+ * vmsify.c (copyto): Ditto.
+ * vmsfunctions.c (readdir): Ditto.
+
+ * make.1: Add a section on the exit codes for make.
+
+ * doc/make.texi: A number of minor updates to the documentation.
+
+2006-01-03 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_file_1): Mark a prerequisite changed if it
+ doesn't exist.
+
+ * read.c (eval): Be sure to strip off trailing whitespace from the
+ prerequisites list properly. Also, initialize all fields in
+ struct dep when creating a new one.
+
+2005-12-28 Paul D. Smith <psmith@gnu.org>
+
+ * config.h.W32.template [WINDOWS32]: Add in some pragmas to
+ disable warnings for MSC.
+ Patch by Rob Tulloh <rtulloh@yahoo.com>.
+
+2005-12-17 Eli Zaretskii <eliz@gnu.org>
+
+ * doc/make.texi (Execution): Add a footnote about changes in
+ handling of backslash-newline sequences. Mention the differences
+ on MS-DOS and MS-Windows.
+
+ * NEWS: More details about building the MinGW port and a pointer
+ to README.W32. Fix the section name that describes the new
+ backward-incompatible processing of backslash-newline sequences.
+ The special processing of SHELL set to "cmd" is only relevant to
+ MS-Windows, not MS-DOS.
+
+2005-12-17 Eli Zaretskii <eliz@gnu.org>
+
+ * main.c (handle_runtime_exceptions): Cast exrec->ExceptionAddress
+ to DWORD, to avoid compiler warnings.
+ * job.c (exec_command): Cast hWaitPID and hPID to DWORD, and
+ use %ld in format, to avoid compiler warnings.
+
+ * doc/make.texi (Special Targets): Fix a typo.
+ (Appending): Fix cross-reference to Setting.
+ (Special Variables, Secondary Expansion, File Name Functions)
+ (Flavor Function, Pattern Match, Quick Reference): Ensure two
+ periods after a sentence.
+ (Execution): Add @: after "e.g.".
+ (Environment): Fix punctuation.
+ (Target-specific, Call Function, Quick Reference): Add @: after "etc."
+ (Shell Function, Target-specific): Add @: after "vs."
+
+2005-12-14 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (record_target_var): Initialize variable's export field
+ with v_default instead of leaving it "initialized" by whatever
+ garbage happened to be on the heap.
+
+2005-12-12 Paul D. Smith <psmith@gnu.org>
+
+ * make.1: Fix some display errors and document all existing options.
+ Patch by Mike Frysinger <vapier@gentoo.org>.
+
+2005-12-11 Paul D. Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): If 2nd expansion is not set for
+ this implicit rule, replace the pattern with the stem directly,
+ and don't re-expand the variable list. Along with the other
+ .SECONDEXPANSION changes below, fixes bug #13781.
+
+2005-12-09 Boris Kolpackov <boris@kolpackov.net>
+
+ * implicit.c (pattern_search): Mark other files that this rule
+ builds as targets so that they are not treated as intermediates
+ by the pattern rule search algorithm. Fixes bug #13022.
+
+2005-12-07 Boris Kolpackov <boris@kolpackov.net>
+
+ * remake.c (notice_finished_file): Propagate the change of
+ modification time to all the double-colon entries only if
+ it is the last one to be updated. Fixes bug #14334.
+
+2005-11-17 Boris Kolpackov <boris@kolpackov.net>
+
+ * function.c (func_flavor): Implement the flavor function which
+ returns the flavor of a variable.
+ * doc/make.texi (Functions for Transforming Text): Document it.
+ * NEWS: Add it to the list of new functions.
+
+2005-11-14 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (construct_include_path): Set the .INCLUDE_DIRS special
+ variable.
+ * doc/make.texi (Special Variables): Document .INCLUDE_DIRS.
+ * NEWS: Add .INCLUDE_DIRS to the list of new special variables.
+
+2005-10-26 Paul Smith <psmith@gnu.org>
+
+ * read.c (record_files): Don't set deps flags if there are no deps.
+ * maintMakefile: We only need to build the templates when we are
+ creating a distribution, so don't do it for "all".
+
+2005-10-24 Paul D. Smith <psmith@gnu.org>
+
+ Make secondary expansion optional: its enabled by declaring the
+ special target .SECONDEXPANSION.
+
+ * NEWS: Update information on second expansion capabilities.
+ * doc/make.texi (Secondary Expansion): Document the
+ .SECONDEXPANSION special target and its behavior.
+ * dep.h (struct dep): Add a flag STATICPATTERN, set to true if the
+ prerequisite list was found in a static pattern rule.
+ (free_dep_chain): Declare a prototype.
+ * file.c (parse_prereqs): New function: break out some complexity
+ from expand_deps().
+ (expand_deps): If we aren't doing second expansion, replace % with
+ the stem for static pattern rules. Call the new function.
+ * filedef.h (parse_prereqs): Declare a prototype.
+ * implicit.c (pattern_search): Initialize the new staticpattern
+ field.
+ * main.c (second_expansion): Declare a global variable to remember
+ if the special target has been seen. Initialize the new
+ staticpattern field for prerequisites.
+ * make.h: Extern for second_expansion.
+ * misc.c (free_dep_chain): New function: frees a struct dep list.
+ * read.c (read_all_makefiles): Initialize the staticpattern field.
+ (eval_makefile): Ditto.
+ (record_files): Check for the .SECONDEXPANSION target and set
+ second_expansion global if it's found.
+ Use the new free_dep_chain() instead of doing it by hand.
+ Set the staticpattern field for prereqs of static pattern targets.
+
+2005-10-16 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Set CURDIR to be a file variable instead of a
+ default, so that values of CURDIR inherited from the environment
+ won't override the make value.
+
+2005-09-26 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): If the line is empty
+ remember to free the temporary argv strings.
+ Fixes bug # 14527.
+
+2005-09-16 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): The noerror flag is a boolean (single
+ bit); set it appropriately.
+ Reported by Mark Eichin <eichin@metacarta.com>
+
+2005-08-29 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_error): On Windows, output from $(info ...)
+ seems to come in the wrong order. Try to force it with fflush().
+
+2005-08-10 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (record_files): Move code that sets stem for static
+ pattern rules out of the if (!two_colon) condition so it is
+ also executed for two-colon rules. Fixes Savannah bug #13881.
+
+2005-08-08 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Don't test that __STDC__ is non-0. Some compilers
+ (Windows for example) set it to 0 to denote "ISO C + extensions".
+ Fixes bug # 13594.
+
+2005-08-07 Paul D. Smith <psmith@gnu.org>
+
+ * w32/pathstuff.c (getcwd_fs): Fix warning about assignment in a
+ conditional (slightly different version of a fix from Eli).
+
+ Fix a bug reported by Michael Matz <matz@suse.de>: patch included.
+ If make is running in parallel without -k and two jobs die in a
+ row, but not too close to each other, then make will quit without
+ waiting for the rest of the jobs to die.
+
+ * main.c (die): Don't reset err before calling reap_children() the
+ second time: we still want it to be in the error condition.
+ * job.c (reap_children): Use a static variable, rather than err,
+ to control whether or not the error message should be printed.
+
+2005-08-06 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/sub_proc.c: Include signal.h.
+ (process_pipe_io, process_file_io): Pass a pointer to a local
+ DWORD variable to GetExitCodeProcess. If the exit code is
+ CONTROL_C_EXIT, put SIGINT into pproc->signal.
+
+ * job.c [WINDOWS32]: Include windows.h.
+ (main_thread) [WINDOWS32]: New global variable.
+ (reap_children) [WINDOWS32]: Get the handle for the main thread
+ and store it in main_thread.
+
+ * commands.c [WINDOWS32]: Include windows.h and w32err.h.
+ (fatal_error_signal) [WINDOWS32]: Suspend the main thread before
+ doing anything else. When we are done, close the main thread
+ handle and exit with status 130.
+
+2005-07-30 Eli Zaretskii <eliz@gnu.org>
+
+ * w32/subproc/sub_proc.c (process_begin): Don't pass a NULL
+ pointer to fprintf.
+
+ * main.c (find_and_set_default_shell): If found a DOSish shell,
+ set sh_found and the value of default_shell, and report the
+ findings in debug mode.
+
+ * job.c (construct_command_argv_internal): Check unixy_shell, not
+ no_default_sh_exe, to decide whether to use Unixy or DOSish
+ builtin commands.
+
+ * README.W32: Update with info about the MinGW build.
+
+ * build_w32.bat: Support MinGW.
+
+ * w32/subproc/build.bat: Likewise.
+
+ * w32/subproc/sub_proc.c (process_easy): Fix format strings for
+ printing DWORD args.
+
+ * function.c (windows32_openpipe): Fix format strings for printing
+ DWORD args.
+
+ * job.c (reap_children) [WINDOWS32]: Don't declare 'status' and
+ 'reap_mode'.
+ (start_job_command): Fix format string for printing the result of
+ process_easy.
+ (start_job_command) [WINDOWS32]: Do not define.
+ (exec_command): Fix format string for printing HANDLE args.
+
+ * main.c (handle_runtime_exceptions): Fix sprintf format strings
+ to avoid compiler warnings.
+ (open_tmpfile): Declare fd only if HAVE_FDOPEN is defined.
+ (Note: some of these fixes were submitted independently by J. Grant)
+
+2005-07-30 J. Grant <jg@jguk.org>
+
+ * prepare_w32.bat: Copy config.h.w32 to config.h if not exist.
+ * make_msvc_net2003.vcproj, make_msvc_net2003.sln: MSVC Project files.
+ * Makefile.am (EXTRA_DIST): Add MSVC Project files.
+
+2005-07-15 Paul Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal) [DOS,WINDOWS32,OS/2]: If
+ we don't have a POSIX shell, then revert to the old
+ backslash-newline behavior (where they are stripped).
+ Fixes bug #13665.
+
+2005-07-08 Paul D. Smith <psmith@gnu.org>
+
+ * config.h.W32.template: Reorder to match the standard config.h,
+ for easier comparisons.
+ From J. Grant <jg@jguk.org>
+
+ * maintMakefile: Remove .dep_segment before overwriting it, in
+ case it's not writable or noclobber is set.
+ * expand.c (variable_expand_string): Cast result of pointer
+ arithmetic to avoid a warning.
+ * main.c (switches): Add full-fledged final initializer.
+
+2005-07-06 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: IRIX has _sys_siglist. Tru64 UNIX has __sys_siglist.
+ * signame.c (strsignal): If we found _sys_siglist[] or
+ __sys_siglist[] use those instead of sys_siglist[].
+ From Albert Chin <china@thewrittenword.com>
+
+2005-07-04 Paul D. Smith <psmith@gnu.org>
+
+ * config.h-vms.template [VMS]: Latest VMS has its own glob() and
+ globfree(); set up to use the GNU versions.
+ From Martin Zinser <zinser@zinser.no-ip.info>
+
+2005-07-03 Paul D. Smith <psmith@gnu.org>
+
+ From J. Grant <jg@jguk.org>:
+
+ * README.W32.template: Update the Windows and tested MSVC versions.
+ * NMakefile.template (CFLAGS_any): Change warning level from W3 to W4.
+ * w32/subproc/NMakefile (CFLAGS_any): Ditto.
+ * build_w32.bat: Ditto.
+ * w32/subproc/build.bat: Ditto.
+
+2005-06-28 Paul D. Smith <psmith@gnu.org>
+
+ * signame.c: HAVE_DECL_* macros are set to 0, not undef, if the
+ declaration was checked but not present.
+
+2005-06-27 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (find_directory): Change type of fs_serno/fs_flags/fs_len
+ to unsigned long. Fixes Savannah bug #13550.
+
+ * w32/subproc/sub_proc.c: Remove (HANDLE) casts on lvalues.
+ (process_pipe_io): Initialize tStdin/tStdout/tStderr variables.
+ Fixes Savannah bug #13551.
+
+2005-06-26 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Fix bug in ANSI_STRING/strerror() handling; only define
+ it if ANSI_STRING is not set.
+
+2005-06-25 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval): If no filenames are passed to any of the
+ "include" variants, don't print an error.
+ * doc/make.texi (Include): Document this.
+ Fixes Savannah bug #1761.
+
+ * job.c (construct_command_argv_internal): Sanitize handling of
+ backslash/newline pairs according to POSIX: that is, keep the
+ backslash-newline in the command script, but remove a following
+ TAB character, if present. In the fast path, make sure that the
+ behavior matches what the shell would do both inside and outside
+ of quotes. In the slow path, quote the backslash and put a
+ literal newline in the string.
+ Fixes Savannah bug #1332.
+ * doc/make.texi (Execution): Document the new behavior and give
+ some examples.
+ * NEWS: Make a note of the new behavior.
+
+ * make.h [WINDOWS32]: #include <direct.h>.
+ Fixes Savannah bug #13478.
+
+ * remake.c (name_mtime): If the stat() of a file fails and the -L
+ option was given and the file is a symlink, take the best mtime of
+ the symlink we can get as the mtime of the file and don't fail.
+ Fixes Savannah bug #13280.
+
+ * read.c (find_char_unquote): Accept a new argument IGNOREVARS.
+ If it's set, then don't stop on STOPCHARs or BLANKs if they're
+ inside a variable reference. Make this function static as it's
+ only used here.
+ (eval): Call find_char_unquote() with IGNOREVARS set when we're
+ parsing an unexpanded line looking for semicolons.
+ Fixes Savannah bug #1454.
+ * misc.c (remove_comments): Move this to read.c and make it static
+ as it's only used there. Call find_char_unquote() with new arg.
+ * make.h: Remove prototypes for find_char_unquote() and
+ remove_comments() since they're static now.
+
+ * main.c (main): If we see MAKE_RESTARTS in the environment, unset
+ its export flag and obtain its value. When we need to re-exec,
+ increment the value and add it into the environment.
+ * doc/make.texi (Special Variables): Document MAKE_RESTARTS.
+ * NEWS: Mention MAKE_RESTARTS.
+ * main.c (always_make_set): New variable. Change the -B option to
+ set this one instead.
+ (main): When checking makefiles, only set always_make_flag if
+ always_make_set is set AND the restarts flag is 0. When building
+ normal targets, set it IFF always_make_set is set.
+ (main): Avoid infinite recursion with -W, too: only set what-if
+ files to NEW before we check makefiles if we've never restarted
+ before. If we have restarted, set what-if files to NEW _after_ we
+ check makefiles.
+ Fixes Savannah bug #7566:
+
+2005-06-17 Paul D. Smith <psmith@gnu.org>
+
+ * default.c: Change VMS implicit rules to use $$$$ instead of $$
+ in the prerequisites list.
+
+2005-06-12 Paul D. Smith <psmith@gnu.org>
+
+ Fix Savannah bug # 1328.
+
+ * configure.in: Check for atexit().
+ * misc.c (close_stdout): Test stdout to see if writes to it have
+ failed. If so, be sure to exit with a non-0 error code. Based on
+ code found in gnulib.
+ * make.h: Prototype.
+ * main.c (main): Install close_stdout() with atexit().
+
+2005-06-10 Paul D. Smith <psmith@gnu.org>
+
+ VMS build updates from Hartmut Becker <Hartmut.Becker@hp.com>:
+
+ * vmsjobs.c [VMS]: Updates to compile on VMS: add some missing
+ headers; make vmsWaitForChildren() static; extern vmsify().
+ * job.c [VMS]: Move vmsWaitForChildren() prototype to be global.
+ Don't create child_execute_job() here (it's in vmsjobs.c).
+ * makefile.vms (job.obj) [VMS]: Add vmsjobs.c as a prerequisite.
+
+2005-06-09 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (push_new_variable_scope): File variables point
+ directly to the global_setlist variable. So, inserting a new
+ scope in front of that has no effect on those variables: they
+ don't go through current_variable_set_list. If we're pushing a
+ scope and the current scope is global, push it "the other way" so
+ that the new setlist is in the global_setlist variable, and
+ next points to a new setlist with the global variable set.
+ (pop_variable_scope): Properly undo a push with the new
+ semantics.
+ Fixes Savannah bug #11913.
+
+2005-05-31 Boris Kolpackov <boris@kolpackov.net>
+
+ * job.c (reap_children): Don't die of the command failed but
+ the dontcare flag is set. Fixes Savannah bug #13216.
+
+ * implicit.c (pattern_search): When creating a target from
+ an implicit rule match, lookup pattern target and set precious
+ flag in a newly created target. Fixes Savannah bug #13218.
+
+2005-05-13 Paul D. Smith <psmith@gnu.org>
+
+ Implement "if... else if... endif" syntax.
+
+ * read.c (eval): Push all checks for conditional words ("ifeq",
+ "else", etc.) down into the conditional_line() function.
+ (conditional_line): Rework to allow "else if..." clause. New
+ return value -2 for lines which are not conditionals. The
+ ignoring flag can now also be 2, which means "already parsed a
+ true branch". If that value is seen no other branch of this
+ conditional can be considered true. In the else parsing if there
+ is extra text after the else, invoke conditional_line()
+ recursively to see if it's another conditional. If not, it's an
+ error. If so, raise the conditional value to this level instead
+ of creating a new conditional nesting level. Special check for
+ "else" and "endif", which aren't allowed on the "else" line.
+ * doc/make.texi (Conditional Syntax): Document the new syntax.
+
+2005-05-09 Paul D. Smith <psmith@gnu.org>
+
+ * Makefile.am (EXTRA_make_SOURCES): Add vmsjobs.c
+ (MAYBE_W32): Rework how SUBDIRS are handled so that "make dist"
+ recurses to the w32 directory, even on non-Windows systems. Use
+ the method suggested in the automake manual.
+ * configure.in: Add w32/Makefile to AC_CONFIG_FILES.
+ * maintMakefile (gnulib-url): They moved the texinfo.tex files.
+
+2005-05-07 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (die): If we're dying with a fatal error (not that a
+ command has failed), write back any leftover tokens before we go.
+
+ * job.c (set_child_handler_action_flags): If there are jobs
+ waiting for the load to go down, set an alarm to go off in 1
+ second. This allows us to wake up from a potentially long-lasting
+ read() and start a new job if the load has gone down. Turn it off
+ after the read.
+ (job_noop): Dummy signal handler function.
+ (new_job): Invoke it with the new semantics.
+
+ * docs/make.texi: Document secondary expansion. Various cleanups
+ and random work.
+
+2005-05-03 Paul D. Smith <psmith@gnu.org>
+
+ Rename .DEFAULT_TARGET to .DEFAULT_GOAL: in GNU make terminology
+ the targets which are to ultimately be made are called "goals";
+ see the GNU make manual. Also, MAKECMDGOALS, etc.
+
+ * filedef.h, read.c, main.c: Change .DEFAULT_TARGET to
+ .DEFAULT_GOAL, and default_target_name to default_goal_name.
+ * doc/make.texi (Special Variables): Document .DEFAULT_GOAL.
+
+2005-05-02 Paul D. Smith <psmith@gnu.org>
+
+ * job.c, vmsjobs.c (vmsWaitForChildren, vms_redirect,
+ vms_handle_apos, vmsHandleChildTerm, reEnableAst, astHandler,
+ tryToSetupYAst, child_execute_job) [VMS]: Move VMS-specific
+ functions to vmsjobs.c. #include it into jobs.c.
+
+ Grant Taylor <gtaylor@picante.com> reports that -j# can lose
+ jobserver tokens. I found that this happens when an exported
+ recursive variable contains a $(shell ...) function reference: in
+ this situation we could "forget" to write back a token.
+
+ * job.c, job.h: Add variable jobserver_tokens: counts the tokens
+ we have. It's not reliable to depend on the number of children in
+ our linked list so keep a separate count.
+ (new_job): Check jobserver_tokens rather than children &&
+ waiting_jobs. Increment jobserver_tokens when we get one.
+ (free_child): If jobserver_tokens is 0, internal error. If it's
+ >1, write a token back to the jobserver pipe (we don't write a
+ token for the "free" job). Decrement jobserver_tokens.
+
+ * main.c: Add variable master_job_slots.
+ (main): Set it to hold the number of jobs requested if we're the
+ master process, when using the jobserver.
+ (die): Sanity checks: first test jobserver_tokens to make sure
+ this process isn't holding any tokens we didn't write back.
+ Second, if master_job_slots is set count the tokens left in the
+ jobserver pipe and ensure it's the same as master_job_slots (- 1).
+
+2005-04-24 Paul D. Smith <psmith@gnu.org>
+
+ Grant Taylor <gtaylor@picante.com> reports that -j# in conjunction
+ with -l# can lose jobserver tokens, because waiting jobs are not
+ consulted properly when checking for the "free" token.
+
+ * job.c (free_child): Count waiting_jobs as having tokens.
+ * job.c (new_job): Ditto. Plus, call start_waiting_jobs() here to
+ handle jobs waiting for the load to drop.
+
+2005-04-23 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Be careful to not core if a variable setting in
+ the environment doesn't contain an '='. This is illegal but can
+ happen in broken setups.
+ Reported by Joerg Schilling <schilling@fokus.fraunhofer.de>.
+
+2005-04-12 Paul D. Smith <psmith@gnu.org>
+
+ The second expansion feature causes significant slowdown. Timing
+ a complex makefile (GCC 4.1) shows a slowdown from .25s to just
+ read the makefile before the feature, to 11+s to do the same
+ operations after the feature. Additionally, memory usage
+ increased drastically. To fix this I added some intelligence that
+ avoids the overhead of the second expansion unless it's required.
+
+ * dep.h: Add a new boolean field, need_2nd_expansion.
+
+ * read.c (eval): When creating the struct dep for the target,
+ check if the name contains a "$"; if so set need_2nd_expansion to 1.
+ (record_files): If there's a "%" in a static pattern rule, it gets
+ converted to "$*" so set need_2nd_expansion to 1.
+
+ * file.c (expand_deps): Rework to be more efficient. Only perform
+ initialize_file_variables(), set_file_variables(), and
+ variable_expand_for_file() if the need_2nd_expansion is set.
+
+ * implicit.c (pattern_search): Default need_2nd_expansion to 0.
+ (pattern_search): Ditto.
+ * main.c (handle_non_switch_argument): Ditto.
+ (main): Ditto.
+ * read.c (read_all_makefiles): Ditto.
+ (eval_makefile): Ditto.
+
+2005-04-07 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main) [WINDOWS32]: Export PATH to sub-shells, not Path.
+ * variable.c (sync_Path_environment): Ditto.
+ Patch by Alessandro Vesely. Fixes Savannah bug #12209.
+
+ * main.c (main): Define the .FEATURES variable.
+ * NEWS: Announce .FEATURES.
+ * doc/make.texi (Special Variables): Document .FEATURES.
+
+ * remake.c (check_dep): If a file is .PHONY, update it even if
+ it's marked intermediate. Fixes Savannah bug #12331.
+
+2005-03-15 Boris Kolpackov <boris@kolpackov.net>
+
+ * file.c (expand_deps): Factor out the second expansion and
+ prerequisite line parsing logic from snap_deps().
+
+ * file.c (snap_deps): Use expand_deps(). Expand and parse
+ prerequisites of the .SUFFIXES special target first. Fixes
+ Savannah bug #12320.
+
+2005-03-13 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main) [MSDOS]: Export SHELL in MSDOS. Requested by Eli
+ Zaretskii.
+
+2005-03-11 Paul D. Smith <psmith@gnu.org>
+
+ * signame.c (strsignal): HAVE_DECL_SYS_SIGLIST is 0 when not
+ available, not undefined (from Earnie Boyd).
+
+2005-03-10 Boris Kolpackov <boris@kolpackov.net>
+
+ * implicit.c (pattern_search): Mark an intermediate target as
+ precious if it happened to be a prerequisite of some (other)
+ target. Fixes Savannah bug #12267.
+
+2005-03-09 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval_makefile): Add alloca(0).
+ (eval_buffer): Ditto.
+
+2005-03-09 Boris Kolpackov <boris@kolpackov.net>
+
+ * main.c (main): Use o_file instead of o_default when defining
+ the .DEFAULT_TARGET special variable.
+ * read.c (eval): Use define_variable_global() instead of
+ define_variable() when setting new value for the .DEFAULT_TARGET
+ special variable. Fixes Savannah bug #12266.
+
+2005-03-04 Boris Kolpackov <boris@kolpackov.net>
+
+ * imlicit.c (pattern_search): Mark files for which an implicit
+ rule has been found as targets. Fixes Savannah bug #12202.
+
+2005-03-04 Paul D. Smith <psmith@gnu.org>
+
+ * AUTHORS: Update.
+ * doc/make.texi (Automatic Variables): Document $|.
+
+2005-03-03 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (record_files): Instead of substituting % with
+ actual stem value in dependency list replace it with $*.
+ This fixes stem triple expansion bug.
+
+ * implicit.c (pattern_search): Copy stem to a separate
+ buffer and make it a properly terminated string. Assign
+ this buffer instead of STEM (which is not terminated) to
+ f->stem. Instead of substituting % with actual stem value
+ in dependency list replace it with $*. This fixes stem
+ triple expansion bug.
+
+2005-03-01 Paul D. Smith <psmith@gnu.org>
+
+ * commands.c (fatal_error_signal) [WINDOWS32]: Don't call kill()
+ on Windows, as it takes a handle not a pid. Just exit.
+ Fix from patch #3679, provided by Alessandro Vesely.
+
+ * configure.in: Update check for sys_siglist[] from autoconf manual.
+ * signame.c (strsignal): Update to use the new autoconf macro.
+
+2005-03-01 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (record_files): Add a check for the list of prerequisites
+ of a static pattern rule being empty. Fixes Savannah bug #12180.
+
+2005-02-28 Paul D. Smith <psmith@gnu.org>
+
+ * doc/make.texi (Text Functions): Update docs to allow the end
+ ordinal for $(wordlist ...) to be 0.
+ * function.c (func_wordlist): Fail if the start ordinal for
+ $(wordlist ...) is <1. Matches documentation.
+ Resolves Savannah support request #103195.
+
+ * remake.c (update_goal_chain): Fix logic for stopping in -q:
+ previously we were stopping when !-q, exactly the opposite. This
+ has been wrong since version 1.34, in 1994!
+ (update_file): If we got an error don't break out to run more
+ double-colon rules: just return immediately.
+ Fixes Savannah bug #7144.
+
+2005-02-27 Paul D. Smith <psmith@gnu.org>
+
+ * misc.c (end_of_token): Make argument const.
+ * make.h: Update prototype.
+
+ * function.c (abspath, func_realpath, func_abspath): Use
+ PATH_VAR() and GET_PATH_MAX instead of PATH_MAX.
+ * dir.c (downcase): Use PATH_VAR() instead of PATH_MAX.
+ * read.c (record_files): Ditto.
+ * variable.c (do_variable_definition): Ditto.
+
+ * function.c (func_error): Create a new function $(info ...) that
+ simply prints the message to stdout with no extras.
+ (function_table_init): Add new function to the table.
+ * NEWS: Add $(info ...) reference.
+ * doc/make.texi (Make Control Functions): Document it.
+
+ New feature: if the system supports symbolic links, and the user
+ provides the -L/--check-symlink-time flag, then use the latest
+ mtime between the symlink(s) and the target file.
+
+ * configure.in (MAKE_SYMLINKS): Check for lstat() and
+ readlink(). If both are available, define MAKE_SYMLINKS.
+ * main.c: New variable: check_symlink_flag.
+ (usage): Add a line for -L/--check-symlink-times to the help string.
+ (switches): Add -L/--check-symlink-times command line argument.
+ (main): If MAKE_SYMLINKS is not defined but the user specified -L,
+ print a warning and disable it again.
+ * make.h: Declare check_symlink_flag.
+ * remake.c (name_mtime): If MAKE_SYMLINKS and check_symlink_flag,
+ if the file is a symlink then check each link in the chain and
+ choose the NEWEST mtime we find as the mtime for the file. The
+ newest mtime might be the file itself!
+ * NEWS: Add information about this new feature.
+ * doc/make.texi (Options Summary): Add -L/--check-symlink-times docs.
+
+ Avoid core dumps described in Savannah bug # 12124:
+
+ * file.c: New variable snapped_deps remember whether we've run
+ snap_deps().
+ (snap_deps): Set it.
+ * filedef.h: Extern it.
+ * read.c (record_files): Check snapped_deps; if it's set then
+ we're trying to eval a new target/prerequisite relationship from
+ within a command script, which we don't support. Fatal.
+
+2005-02-28 Boris Kolpackov <boris@kolpackov.net>
+
+ Implementation of the .DEFAULT_TARGET special variable.
+
+ * read.c (eval): If necessary, update default_target_name when
+ reading rules.
+ * read.c (record_files): Update default_target_file if
+ default_target_name has changed.
+ * main.c (default_target_name): Define.
+ * main.c (main): Enter .DEFAULT_TARGET as make variable. If
+ default_target_name is set use default_target_file as a root
+ target to make.
+ * filedef.h (default_target_name): Declare.
+ * dep.h (free_dep_chain):
+ * misc.c (free_dep_chain): Change to operate on struct nameseq
+ and change name to free_ns_chain.
+ * file.c (snap_deps): Update to use free_ns_chain.
+
+2005-02-27 Boris Kolpackov <boris@kolpackov.net>
+
+ Implementation of the second expansion in explicit rules,
+ static pattern rules and implicit rules.
+
+ * read.c (eval): Refrain from chopping up rule's dependencies.
+ Store them in a struct dep as a single dependency line. Remove
+ the code that implements SySV-style automatic variables.
+
+ * read.c (record_files): Adjust the code that handles static
+ pattern rules to expand all percents instead of only the first
+ one. Reverse the order in which dependencies are stored so that
+ when the second expansion reverses them again they appear in
+ the makefile order (with some exceptions, see comments in
+ the code). Remove the code that implements SySV-style automatic
+ variables.
+
+ * file.c (snap_deps): Implement the second expansion and chopping
+ of dependency lines for explicit rules.
+
+ * implicit.c (struct idep): Define an auxiliary data type to hold
+ implicit rule's dependencies after stem substitution and
+ expansion.
+
+ * implicit.c (free_idep_chain): Implement.
+
+ * implicit.c (get_next_word): Implement helper function for
+ parsing implicit rule's dependency lines into words taking
+ into account variable expansion requests. Used in the stem
+ splitting code.
+
+ * implicit.c (pattern_search): Implement the second expansion
+ for implicit rules. Also fixes bug #12091.
+
+ * commands.h (set_file_variables): Declare.
+ * commands.c (set_file_variables): Remove static specifier.
+
+ * dep.h (free_dep_chain): Declare.
+ * misc.c (free_dep_chain): Implement.
+
+ * variable.h (variable_expand_for_file): Declare.
+ * expand.c (variable_expand_for_file): Remove static specifier.
+
+ * make.h (strip_whitespace): Declare.
+ * function.c (strip_whitespace): Remove static specifier.
+
+2005-02-26 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Check for ferror() when reading makefiles from stdin.
+ Apparently some shells in Windows don't close pipes properly and
+ require this check.
+
+2005-02-24 Jonathan Grant <jg@jguk.org>
+
+ * configure.in: Add MinGW configuration options, and extra w32 code
+ directory.
+ * Makefile.am: Add MinGW configuration options, and extra w32 code
+ directory.
+ * main.c: Determine correct program string (after last \ without .exe).
+ * subproc/sub_proc.c: `GetExitCodeProcess' from incompatible pointer
+ type fix x2
+ * w32/Makefile.am: Import to build win32 lib of sub_proc etc.
+ * subproc/w32err.c: MSVC thread directive not applied to MinGW builds.
+ * tests/run_make_tests.pl, tests/test_driver.pl: MSYS testing
+ environment support.
+
+2004-04-16 Dmitry V. Levin <ldv@altlinux.org>
+
+ * function.c (func_shell): When initializing error_prefix, check
+ that reading file name is not null. This fixes long-standing
+ segfault in cases like "make 'a1=$(shell :)' 'a2:=$(a1)'".
+
+2005-02-09 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile: Update the CVS download URL to simplify them.
+ Also, the ftp://ftp.gnu.org/GNUinfo site was removed so I'm
+ downloading the .texi files from Savannah now.
+
+ Fixed these issues reported by Markus Mauhart <qwe123@chello.at>:
+
+ * main.c (handle_non_switch_argument): Only add variables to
+ command_variables if they're not already there: duplicate settings
+ waste space and can be confusing to read.
+
+ * w32/include/sub_proc.h: Remove WINDOWS32. It's not needed since
+ this header is never included by non-WINDOWS32 code, and it
+ requires <config.h> to define which isn't always included first.
+
+ * dir.c (read_dirstream) [MINGW]: Use proper macro names when
+ testing MINGW32 versions.
+
+ * main.c (log_working_directory): flush stdout to be sure the WD
+ change is printed before any stderr messages show up.
+
+2005-02-01 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile (po_repo): Update the GNU translation site URL.
+
+2004-12-01 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Change char* env_shell to struct variable shell_var.
+ * variable.c (target_environment): Use new shell_var.
+
+2004-11-30 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: The old way we avoided creating build.sh from
+ build.sh.in before build.sh.in exists doesn't work anymore; we
+ have to use raw M4 (thanks to Andreas Schwab <schwab@suse.de> for
+ the help!). This also keeps automake from complaining.
+ * Makefile.am (README): Add a dummy target so automake won't
+ complain that this file doesn't exist when we checkout from CVS.
+ * maintMakefile (.dep_segment): Rewrite this rule since newer
+ versions of automake don't provide DEP_FILES.
+
+2004-11-30 Boris Kolpackov <boris@kolpackov.net>
+
+ Implementation of `realpath' and `abspath' built-in functions.
+
+ * configure.in: Check for realpath.
+ * function.c (abspath): Return an absolute file name that does
+ not contain any `.' or `..' components, nor repeated `/'.
+ * function.c (func_abspath): For each name call abspath.
+ * function.c (func_realpath): For each name call realpath
+ from libc or delegate to abspath if realpath is not available.
+ * doc/make.texi (Functions for File Names): Document new functions.
+ * doc/make.texi (Quick Reference): Ditto.
+
+2004-11-28 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main) [WINDOWS32]: Remove any trailing slashes from -C
+ arguments. Fixes bug #10252.
+
+ Fix for bug #1276: Handle SHELL according to POSIX requirements.
+
+ * main.c (main): Set SHELL to v_noexport by default. Remember the
+ original environment setting of SHELL in the env_shell variable.
+ * main.h: Export new env_shell variable.
+ * variable.c (target_environment): If we find a v_noexport
+ variable for SHELL, add a SHELL variable with the env_shell value.
+ * doc/make.texi (Quick Reference): Document the POSIX behavior.
+ * doc/make.texi (Variables/Recursion): Ditto.
+
+2004-11-28 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (find_and_set_default_shell) [WINDOWS32]: check for
+ equality of "cmd"/"cmd.exe", not inequality. Fixes bug #11155.
+ Patch by Alessandro Vesely.
+
+2004-11-12 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (child_execute_job) [VMS]: Don't treat "#" as a comment on
+ the command line if it's inside a string.
+ Patch by: Hartmut Becker <Hartmut.Becker@hp.com>
+
+2004-10-21 Boris Kolpackov <boris@kolpackov.net>
+
+ * function.c (func_lastword): New function: return last word
+ from the list of words.
+ * doc/make.texi: Document $(lastword ). Fix broken links in
+ Quick Reference section.
+
+2004-10-06 Paul D. Smith <psmith@gnu.org>
+
+ Apply patch from Alessandro Vesely, provided with bug # 9748.
+ Fix use of tmpnam() to work with Borland C.
+
+ * job.c (construct_command_argv_internal) [WINDOWS32]: Remove
+ construction of a temporary filename, and call new function
+ create_batch_filename().
+ (create_batch_filename) [WINDOWS32]: New function to create a
+ temporary filename.
+
+2004-10-05 Boris Kolpackov <boris@kolpackov.net>
+
+ * read.c (record_target_var): Expand simple pattern-specific
+ variable.
+ * variable.c (initialize_file_variables): Do not expand simple
+ pattern-specific variable.
+
+2004-09-28 Boris Kolpackov <boris@kolpackov.net>
+
+ * remake.c (update_file_1): When rebuilding makefiles inherit
+ dontcare flag from a target that triggered update.
+
+2004-09-27 Boris Kolpackov <boris@kolpackov.net>
+
+ * variable.c (initialize_file_variables): Mark pattern-specific
+ variable as a per-target and copy export status.
+
+2004-09-21 Boris Kolpackov <boris@kolpackov.net>
+
+ * file.c (snap_deps): Mark .PHONY prerequisites as targets.
+
+ * implicit.c (pattern_search): When considering an implicit rule's
+ prerequisite check that it is actually a target rather then
+ just an entry in the file hashtable.
+
+2004-09-21 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (readstring): Fix some logic errors in backslash handling.
+ (eval): Remove some unnecessary processing in buffer handling.
+ (record_target_var): Assert that parse_variable_definition() succeeded.
+ Reported by: Markus Mauhart <qwe123@chello.at>.
+
+ * misc.c: Removed the sindex() function. All instances of this
+ function were trivially replaceable by the standard strstr()
+ function, and that function will always have better (or certainly
+ no worse) performance than the very simple-minded algorithm
+ sindex() used. This can matter with complex makefiles.
+ * make.h: Remove the prototype for sindex().
+ * function.c (subst_expand): Convert sindex() call to strstr().
+ This means we no longer need to track the TLEN value so remove that.
+ (func_findstring): Convert sindex() to strstr().
+ * commands.c (chop_commands): Convert sindex() calls to strstr().
+ Suggested by: Markus Mauhart <qwe123@chello.at>.
+
+ * main.c (find_and_set_default_shell) [WINDOWS32]: Implement the
+ idea behind Savannah Patch #3144 from david.baird@homemail.com.
+ If SHELL is set to CMD.EXE then assume it's batch-mode and
+ non-unixy. I wrote the code differently from the patch, though,
+ to make it safer. This also resolves bug #9174.
+
+2004-09-20 Paul D. Smith <psmith@gnu.org>
+
+ * expand.c (variable_expand_string): Modify to invoke
+ patsubst_expand() instead of subst_expand(); the latter didn't
+ handle suffix patterns correctly.
+ * function.c (subst_expand): Remove the SUFFIX_ONLY parameter; it
+ was used only from variable_expand_string() and is no longer used
+ there.
+ (func_subst): Ditto, on call to subst_expand().
+ (patsubst_expand): Require the percent pointers to point to the
+ character after the %, not to the % itself.
+ * read.c (record_files): New call criteria for patsubst_expand().
+ * variable.h: Remove SUFFIX_ONLY from subst_expand() prototype.
+ This is to fix a bug reported by Markus Mauhart <qwe123@chello.at>.
+
+2004-09-19 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (subst_expand): Fix a check in by_word: look for a
+ previous blank if we're beyond the beginning of the string, not
+ the beginning of the word.
+ Bugs reported by Markus Mauhart <qwe123@chello.at>.
+
+2004-05-16 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_goal_chain): Change the argument specifying
+ whether we're rebuilding makefiles to be a global variable,
+ REBUILDING_MAKEFILES.
+ (complain): Extract the code that complains about no rules to make
+ a target into a separate function.
+ (update_file_1): If we tried to rebuild a file during the makefile
+ rebuild phase and it was dontcare, then no message was printed.
+ If we then try to build the same file during the normal build,
+ print a message this time.
+ (remake_file): Don't complain about un-remake-able files when
+ we're rebuilding makefiles.
+
+2004-05-11 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): OS/2 patches from
+ Andreas Buening <andreas.buening@nexgo.de>.
+
+2004-05-10 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (update_file): Don't walk the double-colon chain unless
+ this is a double-colon rule. Fix suggested by Boris Kolpackov
+ <boris@kolpackov.net>.
+
+ * makefile.vms (CFLAGS): Remove glob/globfree (see readme.vms docs)
+ * readme.vms: New section describing OpenVMS support and issues.
+ * default.c (default_variables): Add support for IA64.
+ * job.c (tryToSetupYAst) [VMS]: On VMS running make in batch mode
+ without some privilege aborts make with the error
+ %SYSTEM-F-NOPRIV. It happens when setting up a handler for
+ pressing Ctrl+Y and the input device is no terminal. The change
+ catches this error and just continues.
+
+ Patches by Hartmut Becker <Hartmut.Becker@hp.com>
+
+2004-04-25 Paul D. Smith <psmith@gnu.org>
+
+ * commands.c (set_file_variables): Set $< properly in the face of
+ order-only prerequisites.
+ Patch from Boris Kolpackov <boris@kolpackov.net>
+
+2004-04-21 Bob Byrnes <byrnes@curl.com>
+
+ * main.c (main): Notice failures to remake makefiles.
+
+2004-03-28 Paul D. Smith <psmith@gnu.org>
+
+ Patches for Acorn RISC OS by Peter Naulls <peter@chocky.org>
+
+ * job.c: No default shell for RISC OS.
+ (load_too_high): Hard-code the return to 1.
+ (construct_command_argv_internal): No sh_chars or sh_cmds.
+ * getloadavg.c: Don't set LOAD_AVE_TYPE on RISC OS.
+
+2004-03-20 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (do_variable_definition): Don't append from the
+ global set if a previous non-appending target-specific variable
+ definition exists. Reported by Oliver Schmidt <oschmidt@gmx.net>
+ (with fix).
+
+ * expand.c (reference_variable): Don't give up on variables with
+ no value that have the target-specific append flag set: they might
+ have a value after all. Reported by Oliver Schmidt
+ <oschmidt@gmx.net> (with fix) and also by Maksim A. Nikulin
+ <nikulin@dx1cmd.inp.nsk.su>.
+
+ * rule.c (count_implicit_rule_limits): Don't delete patterns which
+ refer to absolute pathnames in directories that don't exist: some
+ portion of the makefile could create those directories before we
+ match the pattern. Fixes bugs #775 and #108.
+
+ Fixes from Jonathan R. Grant <jg-make@jguk.org>:
+
+ * main.c (main): Free makefile_mtimes if we have any.
+ * README.W32.template: Update documentation for the current status
+ of the MS-Windows port.
+ * NMakefile.template (MAKE): Add "MAKE = nmake". A conflicting
+ environment variable is sometimes already defined which causes the
+ build to fail.
+ * main.c (debug_signal_handler): Only define this function if
+ SIGUSR1 is available.
+
+ Fixes for OS/2 from Andreas Beuning <andreas.buening@nexgo.de>:
+
+ * configure.in [OS/2]: Relocate setting of HAVE_SA_RESTART for OS/2.
+ * README.OS2.template: Documentation updates.
+ * build.template: Add LIBINTL into LOADLIBES. Add $CFLAGS to the
+ link line for safety.
+ * maintMakefile (build.sh.in): Remove an extraneous ")".
+ * job.c (child_execute_job): Close saved FDs.
+ * job.c (exec_command) [OS/2]: exec_command(): If the command
+ can't be exec'ed and if the shell is not Unix-sh, then try again
+ with argv = { "cmd", "/c", ... }. Normally, this code is never
+ reached for the cmd shell unless the command really doesn't exist.
+ (construct_command_argv_internal) [OS/2]: The code for cmd
+ handling now uses new_argv = { "cmd", "/c", "original line", NULL}.
+ The CMD builtin commands are case insensitive so use strcasecmp().
+
+2004-03-19 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (do_define): Re-order line counter increment so the count
+ is accurate (we were losing one line per define). Reported by
+ Dave Yost <Dave@Yost.com>.
+
+2004-03-06 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in (HAVE_ANSI_COMPILER): Define if we have an ANSI/ISO
+ compiler.
+ * make.h: Convert uses of __STDC__ to HAVE_ANSI_COMPILER.
+ * misc.c (message,error,fatal): Ditto.
+ * configh.dos.template: Define HAVE_ANSI_COMPILER.
+ * config.h.W32.template: Ditto.
+ * config.h-vms.template: Ditto.
+ * config.ami.template: Ditto.
+
+2004-03-04 Paul D. Smith <psmith@gnu.org>
+
+ * README.template: Add a note about broken /bin/sh on SunOS
+ 4.1.3_U1 & 4.1.4. Fix up Savannah links.
+
+ * misc.c (message, error, fatal): Don't use "..." if we're using
+ varargs. ansi2knr should handle this but it doesn't work: it
+ translates "..." to va_dcl etc. but _AFTER_ the preprocessor is
+ done. On many systems (SunOS for example) va_dcl is a #define.
+ So, force the use of the non-"..." version on pre-ANSI compilers.
+
+ * maintMakefile (sign-dist): Create some rules to help automate
+ the new GNU ftp upload method.
+
+2004-02-24 Paul D. Smith <psmith@gnu.org>
+
+ * config.h.W32.template: Add HAVE_STDARG_H
+ * config.h-vms.template: Ditto.
+ * config.ami.template: Ditto.
+
+2004-02-23 Jonathan Grant <jg-make@jguk.org>
+
+ * README.W32.template: Add a notation about -j with BATCH_MODE_ONLY.
+ * build_w32.bat: Remove extra "+".
+
+2004-02-23 Paul D. Smith <psmith@gnu.org>
+
+ * make.h: Create an UNUSED macro to mark unused parameters.
+ * (many): Clean up warnings by applying UNUSED, fixing
+ signed/unsigned incompatibilities, etc.
+
+ * acinclude.m4 (AC_STRUCT_ST_MTIM_NSEC): Add quoting to silence
+ autoconf warnings.
+ * filedef.h: Name the command_state enumeration.
+ * file.c (set_command_state): Use the enumeration in the function
+ argument.
+
+ * configure.in: Explicitly set SET_MAKE to empty, to disable
+ MAKE=make even when no make already exists. Fix bug #3823.
+
+2004-02-22 Paul D. Smith <psmith@gnu.org>
+
+ * maintMakefile: Perl script to clean up all non-CVS files. Use
+ it on all the subdirectories for the cvs-clean target.
+
+ * main.c (decode_switches): Require non-empty strings for all our
+ string command-line options. Fixes Debian bug # 164165.
+
+ * configure.in: Check for stdarg.h and varargs.h.
+ * make.h (USE_VARIADIC): Set this if we can use variadic functions
+ for printing messages.
+ * misc.c: Check USE_VARIADIC instead of (obsolete) HAVE_STDVARARGS.
+ (message): Ditto.
+ (error): Ditto.
+ (fatal): Ditto.
+
+ A number of patches for OS/2 support from Andreas Buening
+ <andreas.buening@nexgo.de>:
+
+ * job.c (child_handler) [OS/2]: Allow this on OS/2 but we have to
+ disable the SIGCHLD handler.
+ (reap_children) [OS/2]: Remove special handling of job_rfd.
+ (set_child_handler_action_flags) [OS/2]: Use this function in OS/2.
+ (new_job) [OS/2]: Disable the SIGCHLD handler on OS/2.
+ * main.c (main) [OS/2]: Special handling for paths in OS/2.
+ * configure.in [OS/2]: Force SA_RESTART for OS/2.
+ * Makefile.am (check-regression): Use $(EXEEXT) for Windows-type
+ systems.
+
+2004-02-21 Paul D. Smith <psmith@gnu.org>
+
+ * w32/subproc/sub_proc.c (process_easy) [W32]: Christoph Schulz
+ <mail@kristov.de> reports that if process_begin() fails we don't
+ handle the error condition correctly in all cases.
+ * w32/subproc/w32err.c (map_windows32_error_to_string): Make sure
+ to have a newline on the message.
+
+ * job.c (construct_command_argv_internal): Add "test" to UNIX
+ sh_cmds[]. Fixes Savannah bug # 7606.
+
+2004-02-04 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (vms_handle_apos) [VMS]: Fix various string handling
+ situations in VMS DCL. Fixes Savannah bug #5533. Fix provided by
+ Hartmut Becker <Hartmut.Becker@hp.com>.
+
+2004-01-21 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (load_too_high): Implement an algorithm to control the
+ "thundering herd" problem when using -l to control job creation
+ via the load average. The system only recomputes the load once a
+ second but we can start many jobs in a second. To solve this we
+ keep track of the number of jobs started in the last second and
+ apply a weight to try to guess what a correct load would be.
+ The algorithm was provided by Thomas Riedl <thomas.riedl@siemens.com>.
+ Also fixes bug #4693.
+ (reap_children): Decrease the job count for this second.
+ (start_job_command): Increase the job count for this second.
+
+ * read.c (conditional_line): Expand the text after ifn?def before
+ checking to see if it's a single word. Fixes bug #7257.
+
+2004-01-09 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (print_file): Recurse to print all targets in
+ double-colon rules. Fixes bug #4518, reported (with patch) by
+ Andrew Chatham <chatham@google.com>.
+
+2004-01-07 Paul D. Smith <psmith@gnu.org>
+
+ * acinclude.m4: Remove make_FUNC_SETVBUF_REVERSED.
+ * configure.in: Change make_FUNC_SETVBUF_REVERSED to
+ AC_FUNC_SETVBUF_REVERSED.
+
+ * doc/make.texi (Target-specific): Fix Savannah bug #1772.
+ (MAKE Variable): Fix Savannah bug #4898.
+
+ * job.c (construct_command_argv_internal): Add "!" to the list of
+ shell escape chars. POSIX sh allows it to appear before a
+ command, to negate the exit code. Fixes bug #6404.
+
+ * implicit.c (pattern_search): When matching an implicit rule,
+ remember which dependencies have the ignore_mtime flag set.
+ Original fix provided in Savannah patch #2349, by Benoit
+ Poulot-Cazajous <Benoit.Poulot-Cazajous@jaluna.com>.
+
+2003-11-22 Paul D. Smith <psmith@gnu.org>
+
+ * README.W32.template (Outputs): Clarification on -j with
+ BATCH_MODE_ONLY_SEHLL suggested by Jonathan R. Grant
+ <jg-make@jguk.org>.
+
+2003-11-02 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_if): Strip all the trailing whitespace from the
+ condition, then don't expand it. Fixed bug # 5798.
+
+ * expand.c (recursively_expand_for_file): If we're expanding a
+ variable with no file context, then use the variable's context.
+ Fixes bug # 6195.
+
+2003-10-21 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (log_working_directory): Add newlines to printf()s.
+
+ * README.cvs: Add a note to ignore warnings during autoreconf.
+
+ * maintMakefile (po_repo): Set a new URL for PO file updates.
+ (get-config/config.guess get-config/config.sub): Get these files
+ from the Savannah config project instead of ftp.gnu.org.
+
+2003-10-05 Paul Eggert <eggert@twinsun.com>
+
+ * main.c (main): Avoid potential subscript error if environ has
+ short strings.
+
+2003-08-22 Paul D. Smith <psmith@gnu.org>
+
+ * misc.c (xmalloc, xrealloc): Add one to 0 sizes, to cater to
+ systems which don't yet implement the C89 standard :-/.
+
+2003-07-18 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (directory_contents_hash_1, directory_contents_hash_1)
+ [WINDOWS32]: Initialize hash.
+
+2003-06-19 Earnie Boyd <earnie@uses.sf.net>
+
+ * dir.c (read_dirstream): Provide a workaround for broken versions of
+ the MinGW dirent structure.
+
+2003-05-30 Earnie Boyd <earnie@users.sf.net>
+
+ * w32/include/dirent.h: Add __MINGW32__ filter.
+
+2003-05-30 Earnie Boyd <earnie@users.sf.net>
+
+ * make.h: Add global declaration of *make_host.
+ * main.c (print_usage): Remove local declaration of *make_host.
+ (print_version): Display "This program built for ..." after Copyright
+ notice.
+
+2003-05-30 Earnie Boyd <earnie@users.sf.net>
+
+ * doc/make.texi: Change "ifinfo" to "ifnottex" as suggested by the
+ execution of "makeinfo --html make.texi".
+
+2003-04-30 Paul D. Smith <psmith@gnu.org>
+
+ * build.template: Make some changes to maybe allow this script to
+ work on DOS/Windows/OS2 systems. Suggested by Andreas Buening.
+
+ * README.OS2.template: New file for OS/2 support. Original
+ contributed by Andreas Buening.
+ * configure.in: Invoke new pds_AC_DOS_PATHS macro to test for
+ DOS-style paths.
+
+2003-04-19 Paul D. Smith <psmith@gnu.org>
+
+ Fix bug #1405: allow a target to match multiple pattern-specific
+ variables.
+
+ * rule.c (create_pattern_var, lookup_pattern_var): Move these to
+ variable.c, where they've always belonged.
+ * rule.h: Move the prototypes and struct pattern_var as well.
+ * variable.c (initialize_file_variables): Invoke
+ lookup_pattern_var() in a loop, until no more matches are found.
+ If a match is found, create a new variable set for the target's
+ pattern variables. Then merge the contents of each matching
+ pattern variable set into the target's pattern variable set.
+ (lookup_pattern_var): Change this function to be usable
+ in a loop. It takes a starting position: if NULL, start at the
+ beginning; if non-NULL, start with the pattern variable after that
+ position, and return the next matching pattern.
+ (create_pattern_var): Create a unique instance of
+ pattern-specific variables for every definition in the makefile.
+ Don't combine the same pattern together. This allows us to
+ process the variable handling properly even when the same pattern
+ is used multiple times.
+ (parse_variable_definition): New function: break out the parsing
+ of a variable definition line from try_variable_definition.
+ (try_variable_definition): Call parse_variable_definition to
+ parse.
+ (print_variable_data_base): Print out pattern-specific variables.
+ * variable.h (struct variable): Remember when a variable is
+ conditional. Also remember its flavor.
+ (struct pattern_var): Instead of keeping a variable set, we just
+ keep a single variable for each pattern.
+ * read.c (record_target_var): Each pattern variable contains only a
+ single variable, not a set, so create it properly.
+ * doc/make.texi (Pattern-specific): Document the new behavior.
+
+2003-04-17 Paul D. Smith <psmith@gnu.org>
+
+ * dir.c (file_exists_p) [VMS]: Patch provided with Bug #3018 by
+ Jean-Pierre Portier <portierjp2@free.fr>. I don't understand the
+ file/directory naming rules for VMS so I can't tell whether this
+ is correct or not.
+
+2003-04-09 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in (HAVE_DOS_PATHS): Define this on systems that need
+ DOS-style pathnames: backslash separators and drive specifiers.
+
+2003-03-28 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (snap_deps): If .SECONDARY with no targets is given, set
+ the intermediate flag on all targets. Fixes bug #2515.
+
+2003-03-24 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in, Makefile.am, glob/Makefile.am, doc/Makefile.am:
+ Upgrade to autoconf 2.57 and automake 1.7.3.
+
+ * job.c: More OS/2 changes from Andreas Buening.
+
+ * file.c (print_file): Fix variable initialization.
+ Fixes bug #2892.
+
+ * remake.c (notice_finished_file):
+
+ * make.h (ENULLLOOP): Set errno = 0 before invoking the command;
+ some calls (like readdir()) return NULL in valid situations
+ without resetting errno. Fixes bug #2846.
+
+2003-02-25 Paul D. Smith <psmith@gnu.org>
+
+ Port to OS/2 (__EMX__) by Andreas Buening <andreas.buening@nexgo.de>.
+
+ * job.c (_is_unixy_shell) [OS/2]: New function.
+ Set default shell to /bin/sh.
+ (reap_children): Close the job_rfd pipe here since we don't use a
+ SIGCHLD handler.
+ (set_child_handler_action_flags): define this to empty on OS/2.
+ (start_job_command): Close the jobserver pipe and use
+ child_execute_job() instead of fork/exec.
+ (child_execute_job): Rewrite to handle stdin/stdout FDs and spawn
+ rather than exec'ing, then reconfigure stdin/stdout.
+ (exec_command): Rewrite to use spawn instead of exec. Return the
+ PID of the child.
+
+ * main.c (main) [OS/2]: Call initialize_main(). Handle argv[0] as
+ in DOS. Handle the TEMP environment variable as in DOS. Don't
+ use a SIGCHLD handler on OS/2. Choose a shell as in DOS. Don't
+ use -j in DOS mode. Use child_execute_job() instead of
+ exec_command().
+
+ * function.c (func_shell) [OS/2]: Can't use fork/exec on OS/2: use
+ spawn() instead.
+
+ * job.h [OS/2]: Move CLOSE_ON_EXEC here from job.c. Add
+ prototypes that return values.
+
+ * remake.c (f_mtime) [OS/2]: Handle FAT timestamp offsets for OS/2.
+
+ * read.c (readline) [OS/2]: Don't handle CRLF specially on OS/2.
+ * default.c (default_suffixes) [OS/2]: Set proper default suffixes
+ for OS/2.
+ * vpath.c (construct_vpath_list) [OS/2]: Handle OS/2 paths like
+ DOS paths.
+
+2003-02-24 Paul D. Smith <psmith@gnu.org>
+
+ * default.c [VMS]: New default rules for .cxx -> .obj compiles.
+ * job.c (child_execute_job) [VMS]: New code for handling spawn().
+ (child_execute_job) [VMS]: Handle error status properly.
+ Patches provided by Hartmut Becker <Hartmut.Becker@compaq.com>.
+
+ * function.c (func_shell): Use EINTRLOOP() while reading from the
+ subshell pipe (Fixes bug #2502).
+ * job.c (free_child): Use EINTRLOOP() while writing tokens to the
+ jobserver pipe.
+ * main.c (main): Ditto.
+
+2003-01-30 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval): eval() was not fully reentrant, because the
+ collapsed buffer was static. Change it to be an automatic
+ variable so that eval() can be invoked recursively.
+ Fixes bug # 2238.
+ (eval): Apply patch # 1022: fix memory reference error on long
+ target-specific variable lines.
+ Patch provided by Steve Brown <Steve.Brown@macquarie.com>.
+
+ * function.c (check_numeric): Combine the is_numeric() function
+ into this function, since it's only called from one place.
+ Constify this function. Have it print the incorrect string in the
+ error message. Fixes bug #2407.
+ (strip_whitespace): Constify.
+ (func_if): Constify.
+ * expand.c (expand_argument): Constify.
+
+2003-01-29 Paul D. Smith <psmith@gnu.org>
+
+ Fix bug # 2169, also reported by other people on various systems.
+
+ * make.h: Some systems, such as Solaris and PTX, do not fully
+ implement POSIX-compliant SA_RESTART functionality; important
+ system calls like stat() and readdir() can still fail with EINTR
+ even if SA_RESTART has been set on the signal handler. So,
+ introduce macros EINTRLOOP() and ENULLLOOP() which can loop on
+ EINTR for system calls which return -1 or 0 (NULL), respectively,
+ on error.
+ Also, remove the old atomic_stat()/atomic_readdir() and
+ HAVE_BROKEN_RESTART handling.
+
+ * configure.in: Remove setting of HAVE_BROKEN_RESTART.
+
+ * arscan.c (ar_member_touch): Use EINTRLOOP() to wrap fstat().
+ * remake.c (touch_file): Ditto.
+
+ * commands.c (delete_target): Use EINTRLOOP() to wrap stat().
+ * read.c (construct_include_path): Ditto.
+ * remake.c (name_mtime): Ditto.
+ * vpath.c (selective_vpath_search): Ditto.
+ * dir.c (find_directory): Ditto.
+ (local_stat): Ditto.
+ (find_directory): Use ENULLLOOP() to wrap opendir().
+ (dir_contents_file_exists_p): Use ENULLLOOP() to wrap readdir().
+
+ * misc.c: Remove HAVE_BROKEN_RESTART, atomic_stat(), and
+ atomic_readdir() handling.
+
+2003-01-22 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_call): Fix Bug #1744. If we're inside a
+ recursive invocation of $(call ...), mask any of the outer
+ invocation's arguments that aren't used by this one, so that this
+ invocation doesn't "inherit" them accidentally.
+
+2002-12-05 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (subst_expand): Valery Khamenia reported a
+ pathological performance hit when doing substitutions on very
+ large values with lots of words: turns out we were invoking
+ strlen() a ridiculous number of times. Instead of having each
+ call to sindex() call strlen() again, keep track of how much of
+ the text we've seen and pass the length to sindex().
+
+2002-11-19 Paul D. Smith <psmith@gnu.org>
+
+ * README.cvs, configure.in: Upgrade to require autoconf 2.56.
+
+
+2002-11-16 Paul D. Smith <psmith@gnu.org>
+
+ * NMakefile.template (OBJS): Add hash.c object file.
+ * SMakefile.template (srcs): Ditto.
+ * Makefile.ami (objs): Ditto.
+ * build_w32.bat: Ditto.
+
+ * Makefile.DOS.template: Remove extra dependencies.
+
+2002-10-25 Paul D. Smith <psmith@gnu.org>
+
+ * expand.c (install_variable_buffer): New function. Install a new
+ variable_buffer context and return the previous one.
+ (restore_variable_buffer): New function. Free the current
+ variable_buffer context and put a previously saved one back.
+ * variable.h: Prototypes for {install,restore}_variable_buffer.
+ * function.c (func_eval): Push a new variable_buffer context
+ before we eval, then restore the old one when we're done.
+ Fixes Bug #1517.
+
+ * read.c (install_conditionals): New function. Install a new
+ conditional context and return the previous one.
+ (restore_conditionals): New function. Free the current
+ conditional context and put a previously saved one back.
+ (eval): Use the {install,restore}_conditionals for "include"
+ handling.
+ (eval_buffer): Use {install,restore}_conditionals to preserve the
+ present conditional state before we evaluate the buffer.
+ Fixes Bug #1516.
+
+ * doc/make.texi (Quick Reference): Add references to $(eval ...)
+ and $(value ...).
+ (Recursion): Add a variable index entry for CURDIR.
+
+ * README.cvs: Update to appropriate versions.
+ * Makefile.am (nodist_loadavg_SOURCES): automake gurus point out I
+ don't need to copy loadavg.c: automake is smart enough to create
+ it for me. Still have a bug in automake related to ansi2knr tho.
+
+2002-10-14 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (notice_finished_file): Only touch targets if they have
+ at least one command (as per POSIX). Resolve Bug #1418.
+
+ * *.c: Convert to using ANSI C-style function definitions.
+ * Makefile.am: Enable the ansi2knr feature of automake.
+ * configure.in: ditto.
+
+2002-10-13 Paul D. Smith <psmith@gnu.org>
+
+ * commands.c (set_file_variables): Bug #1379: Don't use alloca()
+ for automatic variable values like $^, etc. In the case of very
+ large lists of prerequisites this causes problems. Instead reuse
+ a static buffer (resizeable) for each variable.
+
+ * read.c (eval): Fix Bug #1391: allow "export" keyword in
+ target-specific variable definitions. Check for it and set an
+ "exported" flag.
+ (record_target_var): Set the export field to v_export if the
+ "exported" flag is set.
+ * doc/make.texi (Target-specific): Document the ability to use
+ "export".
+
+ * doc/make.texi: Change the name of the section on automatic
+ variables from "Automatic" to "Automatic Variables". Added text
+ clarifying the scope of automatic variables.
+
+2002-10-04 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval): Allow SysV $$@ variables to use {} braces as well
+ as () braces.
+ (record_files): Ditto.
+
+ * expand.c (variable_expand_string): In $(A:x=y) expansion limit
+ the search for the '=' to only within the enclosing parens.
+
+2002-10-03 Paul D. Smith <psmith@gnu.org>
+
+ Version 3.80 released.
+
+ * dir.c: Change hash functions to use K&R function definition style.
+ * function.c: Ditto.
+ * read.c: Ditto.
+ * variable.c: Ditto.
+
+ Update to automake 1.7.
+
+ * Makefile.am (AUTOMAKE_OPTIONS): Update to require 1.7.
+ (pdf): Remove this target as automake now provides one.
+
+ * configure.in: Change AM_CONFIG_HEADER to AC_CONFIG_HEADERS.
+
+2002-09-30 Martin P.J. Zinser <zinser@decus.de>
+
+ * makefile.com: Updates for GNU make 3.80.
+ * makefile.vms: Ditto.
+
+2002-09-23 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (enum make_word_type): Remove w_comment.
+ (get_next_mword): Don't treat comment characters as special; where
+ this function is used we will never see a comment (it's stripped
+ before we get here) and treating comments specially means that
+ targets like "foo\#bar" aren't handled properly.
+
+2002-09-18 Paul D. Smith <psmith@gnu.org>
+
+ * doc/make.texi (Bugs): Update with some info on Savannah, etc.
+
+ * read.c (eval): Expansion of arguments to export/unexport was
+ ignoring all arguments after the first one. Change the algorithm
+ to expand the whole line once, then parse the results.
+
+2002-09-17 Paul D. Smith <psmith@gnu.org>
+
+ Fix Bug #940 (plus another bug I found while looking at this):
+
+ * read.c (record_target_var): enter_file() will add a new entry if
+ it's a double-colon target: we don't want to do that in this
+ situation. Invoke lookup_file() and only enter_file() if it does
+ not already exist. If the file we get back is a double-colon then
+ add this variable to the "root" double-colon target.
+
+ * variable.c (initialize_file_variables): If this file is a
+ double-colon target but is not the "root" target, then initialize
+ the root and make the root's variable list the parent of our
+ variable list.
+
+2002-09-13 Paul D. Smith <psmith@gnu.org>
+
+ * doc/make.texi (MAKE Variable): Add some indexing for "+".
+
+ * hash.c (round_up_2): Get rid of a warning.
+
+2002-09-12 Paul D. Smith <psmith@gnu.org>
+
+ * Makefile.am (loadavg_SOURCES, loadavg.c): Tiptoe around automake
+ so it doesn't complain about getloadavg.c.
+
+ * commands.c (set_file_variables): Make sure we always alloca() at
+ least 1 character for the value of $? (for '\0').
+
+2002-09-11 Paul D. Smith <psmith@gnu.org>
+
+ * hash.h (STRING_COMPARE, ISTRING_COMPARE, STRING_N_COMPARE): Fix
+ macro to use RESULT instead of the incorrect _RESULT_.
+
+ * make.h (HAVE_BROKEN_RESTART): Add prototypes for atomic_stat()
+ and atomic_readdir(). We need to #include dirent.h to get this to
+ work.
+ * misc.c (atomic_readdir): Fix typos.
+
+2002-09-10 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (eval): Expand variable lists given to export and
+ unexport, so that "export $(LIST_OF_VARIABLES)" (etc.) works.
+ (conditional_line): Ditto for "ifdef". Fixes bug #103.
+
+ * doc/make.texi (Variables/Recursion): Document this.
+ (Conditional Syntax): And here.
+
+2002-09-09 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Check for memmove().
+
+2002-09-07 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in (HAVE_BROKEN_RESTART): Define this on PTX systems;
+ Michael Sterrett <msterret@coat.com> reports that while it has
+ SA_RESTART, it does not work properly.
+
+ * misc.c (atomic_stat): If HAVE_BROKEN_RESTART, create a function
+ that invokes stat() and loops to do it again if it returns EINTR.
+ (atomic_readdir): Ditto, with readdir().
+
+ * make.h (stat, readdir): If HAVE_BROKEN_RESTART, alias stat()
+ and readdir() to atomic_stat() and atomic_readdir().
+
+2002-09-04 Paul D. Smith <psmith@gnu.org>
+
+ * implicit.c (pattern_search): Daniel <barkalow@reputation.com>
+ reports that GNU make sometimes doesn't recognize that targets can
+ be made, when directories can be created as prerequisites. He
+ reports that changing the order of predicates in the DEP->changed
+ flag test so that lookup_file() is always performed, solves this
+ problem.
+
+2002-08-08 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Require a newer version of gettext.
+
+ * misc.c (perror_with_name): Translate the format string (for
+ right-to-left language support).
+ (pfatal_with_name): Ditto.
+
+ * main.c: Create a static array of strings to store the usage
+ text. This is done to facilitate translations.
+ (struct command_switch): Remove argdesc and description fields.
+ (switches): Remove values for obsolete fields.
+ (print_usage): Print each element of the usage array.
+
+ * hash.c: Change function definitions to be K&R style.
+
+2002-08-02 Paul D. Smith <psmith@gnu.org>
+
+ * NEWS: Remove the mention of .TARGETS; we aren't going to publish
+ this one because it's too hard to get right. We'll look at it for
+ a future release.
+ * main.c (main): Don't create the .TARGETS variable.
+ * variable.c (handle_special_var): Don't handle .TARGETS.
+
+2002-08-01 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (switches): Add a new option, -B (--always-make). If
+ specified, make will rebuild all targets that it encounters even
+ if they don't appear to be out of date.
+ (always_make_flag): New flag.
+ * make.h: Extern always_make_flag.
+ * remake.c (update_file_1): Check always_make_flag; if it's set we
+ will always rebuild any target we can, even if none of its
+ prerequisites are newer.
+ * NEWS: Mention it.
+
+ * doc/make.texi (Shell Function): Make it clear that make
+ variables marked as "export" are not passed to instances of the
+ shell function.
+
+ Add new introspection variable .VARIABLES and .TARGETS.
+
+ * variable.c (handle_special_var): New function. If the variable
+ reference passed in is "special" (.VARIABLES or .TARGETS),
+ calculate the new value if necessary. .VARIABLES is handled here:
+ walk through the hash of defined variables and construct a value
+ which is a list of the names. .TARGETS is handled by
+ build_target_list().
+ (lookup_variable): Invoke handle_special_var().
+ * file.c (build_target_list): Walk through the hask of known files
+ and construct a list of the names of all the ones marked as
+ targets.
+ * main.c (main): Initialize them to empty (and as simple variables).
+ * doc/make.texi (Special Variables): Document them.
+ * NEWS: Mention them.
+
+ * variable.h (struct variable): Add a new flag "exportable" which
+ is true if the variable name is valid for export.
+ * variable.c (define_variable_in_set): Set "exportable" when a new
+ variable is defined.
+ (target_environment): Use the "exportable" flag instead of
+ re-checking the name here... an efficiency improvement.
+
+2002-07-31 Paul D. Smith <psmith@gnu.org>
+
+ * config.h-vms.template: Updates to build on VMS. Thanks to
+ Brian_Benning@aksteel.com for helping verify the build.
+ * makefile.com: Build the new hash.c file.
+ * hash.h: Use strcpmi(), not stricmp(), in the
+ HAVE_CASE_INSENSITIVE_FS case.
+
+2002-07-30 Paul D. Smith <psmith@gnu.org>
+
+ * hash.h (ISTRING_COMPARE, return_ISTRING_COMPARE): Add missing
+ backslashes to the HAVE_CASE_INSENSITIVE_FS case.
+ Reported by <Brian_Benning@aksteel.com>.
+
+2002-07-10 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (pop_variable_scope): Remove variable made unused by
+ new hash infrastructure.
+ * read.c (dep_hash_cmp): Rewrite this to handle ignore_mtime
+ comparisons as well as name comparisons.
+ * variable.h: Add a prototype for new hash_init_function_table().
+ * file.c (lookup_file): Remove variables made unused by new hash
+ infrastructure.
+ * dir.c (directory_contents_hash_2): Missing return of hash value.
+ (dir_contents_file_exists_p): Remove variables made unused by new
+ hash infrastructure.
+
+
+ Installed Greg McGary's integration of the hash functions from the
+ GNU id-utils package:
+
+2002-07-10 Greg McGary <greg@mcgary.org>
+
+ * scripts/functions/filter-out: Add literals to to the
+ pattern space in order to add complexity, and trigger
+ use of an internal hash table. Fix documentation strings.
+ * scripts/targets/INTERMEDIATE: Reverse order of files
+ passed to expected `rm' command.
+
+2002-07-10 Greg McGary <greg@mcgary.org>
+
+ * Makefile.am (SRCS): Add hash.c (noinst_HEADERS): Add hash.h
+ * hash.c: New file, taken from id-utils.
+ * hash.h: New file, taken from id-utils.
+
+ * make.h (HASH, HASHI): Remove macros.
+ (find_char_unquote): Change arglist in decl.
+ (hash_init_directories): New function decl.
+ * variable.h (hash.h): New #include.
+ (MAKELEVEL_NAME, MAKELEVEL_LENGTH): New constants.
+ * filedef.h (hash.h): New #include.
+ (struct file) [next]: Remove member.
+ (file_hash_enter): Remove function decl.
+ (init_hash_files): New function decl.
+
+ * ar.c (ar_name): Delay call to strlen until needed.
+ * main.c (initialize_global_hash_tables): New function.
+ (main): Call it. Use MAKELEVEL_NAME & MAKELEVEL_LENGTH.
+ * misc.c (remove_comments): Pass char constants to find_char_unquote.
+ * remake.c (notice_finished_file): Update last_mtime on `prev' chain.
+
+ * dir.c (hash.h): New #include.
+ (struct directory_contents) [next, files]: Remove members.
+ [ctime]: Add member for VMS. [dirfiles]: Add hash-table member.
+ (directory_contents_hash_1, directory_contents_hash_2,
+ directory_contents_hash_cmp): New functions.
+ (directories_contents): Change type to `struct hash_table'.
+ (struct directory) [next]: Remove member.
+ (directory_hash_1, directory_hash_2, directory_hash_cmp): New funcs.
+ (directory): Change type to `struct hash_table'.
+ (struct dirfile) [next]: Remove member.
+ [length]: Add member. [impossible]: widen type to fill alignment gap.
+ (dirfile_hash_1, dirfile_hash_2, dirfile_hash_cmp): New functions.
+ (find_directory): Use new hash table package.
+ (dir_contents_file_exists_p): Likewise.
+ (file_impossible): Likewise.
+ (file_impossible_p): Likewise.
+ (print_dir_data_base): Likewise.
+ (open_dirstream): Likewise.
+ (read_dirstream): Likewise.
+ (hash_init_directories): New function.
+
+ * file.c (hash.h): New #include.
+ (file_hash_1, file_hash_2, file_hash_cmp): New functions.
+ (files): Change type to `struct hash_table'.
+ (lookup_file): Use new hash table package.
+ (enter_file): Likewise.
+ (remove_intermediates): Likewise.
+ (snap_deps): Likewise.
+ (print_file_data_base): Likewise.
+
+ * function.c
+ (function_table_entry_hash_1, function_table_entry_hash_2,
+ function_table_entry_hash_cmp): New functions.
+ (lookup_function): Remove `table' argument.
+ Use new hash table package.
+ (struct a_word) [chain, length]: New members.
+ (a_word_hash_1, a_word_hash_2, a_word_hash_cmp): New functions.
+ (struct a_pattern): New struct.
+ (func_filter_filterout): Pass through patterns noting boundaries
+ and '%', if present. Note a_word length. Use a hash table if
+ arglists are large enough to justify cost.
+ (function_table_init): Renamed from function_table.
+ (function_table): Declare as `struct hash_table'.
+ (FUNCTION_TABLE_ENTRIES): New constant.
+ (hash_init_function_table): New function.
+
+ * read.c (hash.h): New #include.
+ (read_makefile): Pass char constants to find_char_unquote.
+ (dep_hash_1, dep_hash_2, dep_hash_cmp): New functions.
+ (uniquize_deps): Use hash table to efficiently identify duplicates.
+ (find_char_unquote): Accept two char-constant stop chars, rather
+ than a string constant, avoiding zillions of calls to strchr.
+ Tighten inner search loops to test only for desired delimiters.
+
+ * variable.c (variable_hash_1, variable_hash_2,
+ variable_hash_cmp): New functions.
+ (variable_table): Declare as `struct hash_table'.
+ (global_variable_set): Remove initialization.
+ (init_hash_global_variable_set): New function.
+ (define_variable_in_set): Use new hash table package.
+ (lookup_variable): Likewise.
+ (lookup_variable_in_set): Likewise.
+ (initialize_file_variables): Likewise.
+ (pop_variable_scope): Likewise.
+ (create_new_variable_set): Likewise.
+ (merge_variable_sets): Likewise.
+ (define_automatic_variables): Likewise.
+ (target_environment): Likewise.
+ (print_variable_set): Likewise.
+
+2002-07-10 Paul D. Smith <psmith@gnu.org>
+
+ Implement the SysV make syntax $$@, $$(@D), and $$(@F) in the
+ prerequisite list. A real SysV make will expand the entire
+ prerequisites list _twice_: we don't do that as it's a big
+ backward-compatibility problem. We only replace those specific
+ variables.
+
+ * read.c (record_files): Replace any $@, $(@D), and $(@F) variable
+ references left in the list of prerequisites. Check for .POSIX as
+ we record targets, so we can disable non-POSIX behavior while
+ reading makefiles as well as running them.
+ (eval): Check the prerequisite list to see if we have anything
+ that looks like a SysV prerequisite variable reference.
+
+2002-07-09 Paul D. Smith <psmith@gnu.org>
+
+ * doc/make.texi (Prerequisite Types): Add a new section describing
+ order-only prerequisites.
+
+ * read.c (uniquize_deps): If we have the same file as both a
+ normal and order-only prereq, get rid of the order-only prereq,
+ since the normal one supersedes it.
+
+2002-07-08 Paul D. Smith <psmith@gnu.org>
+
+ * AUTHORS: Added Greg McGary to the AUTHORS file.
+ * NEWS: Blurbed order-only prerequisites.
+ * file.c (print_file): Show order-only deps properly when printing
+ the database.
+
+ * maintMakefile: Add "update" targets for wget'ing the latest
+ versions of various external files. Taken from Makefile.maint in
+ autoconf, etc.
+
+ * dosbuild.bat: Somehow we got _double_ ^M's. Remove them.
+ Reported by Eli Zaretskii <eliz@is.elta.co.il>.
+
+2002-07-07 Paul D. Smith <psmith@gnu.org>
+
+ * po/*.po: Remove. We'll use wget to retrieve them at release
+ time.
+
+ * variable.c (do_variable_definition) [W32]: On W32 using cmd
+ rather than a shell you get an exception. Make sure we look up
+ the variable. Patch provided by Eli Zaretskii <eliz@is.elta.co.il>.
+
+ * remake.c (notice_finished_file): Fix handling of -t flag.
+ Patch provided by Henning Makholm <henning@makholm.net>.
+
+ * implicit.c (pattern_search): Some systems apparently run short
+ of stack space, and using alloca() in this function caused an
+ overrun. I modified it to use xmalloc() on the two variables
+ which seemed like they might get large. Fixes Bug #476.
+
+ * main.c (print_version): Update copyright notice to conform with
+ GNU standards.
+ (print_usage): Update help output.
+
+ * function.c (func_eval): Create a new make function, $(eval
+ ...). Expand the arguments, put them into a buffer, then invoke
+ eval_buffer() on the resulting string.
+ (func_quote): Create a new function, $(quote VARNAME). Inserts
+ the value of the variable VARNAME without expanding it any
+ further.
+
+ * read.c (struct ebuffer): Change the linebuffer structure to an
+ "eval buffer", which can be either a file or a buffer.
+ (eval_makefile): Move the code in the old read_makefile() which
+ located a makefile into here: create a struct ebuffer with that
+ information. Have it invoke the new function eval() with that
+ ebuffer.
+ (eval_buffer): Create a new function that creates a struct ebuffer
+ that holds a string buffer instead of a file. Have it invoke
+ eval() with that ebuffer.
+ (eval): New function that contains the guts of the old
+ read_makefile() function: this function parses makefiles. Obtains
+ data to parse from the provided ebuffer. Some modifications to
+ make the flow of the function cleaner and clearer. Still could
+ use some work here...
+ (do_define): Takes a struct ebuffer instead of a FILE*. Read the
+ contents of the define/endef variable from the ebuffer.
+ (readstring): Read the next line from a string-style ebuffer.
+ (readline): Read the next line from an ebuffer. If it's a string
+ ebuffer, invoke readstring(). If it's a FILE* ebuffer, read it
+ from the file.
+
+ * dep.h (eval_buffer): Prototype eval_buffer();
+
+ * variable.c (do_variable_definition): Make sure that all
+ non-target-specific variables are registered in the global set.
+ If we're invoked from an $(eval ...) we might be inside a $(call
+ ...) or other function which has pushed a variable scope; we still
+ want to define our variables from evaluated makefile code in the
+ global scope.
+
+2002-07-03 Greg McGary <greg@mcgary.org>
+
+ * dep.h (struct dep) [ignore_mtime]: New member.
+ [changed]: convert to a bitfield.
+ * implicit.c (pattern_search): Zero ignore_mtime.
+ * main.c (main, handle_non_switch_argument): Likewise.
+ * rule.c (convert_suffix_rule): Likewise.
+ * read.c (read_all_makefiles, read_makefile, multi_glob): Likewise.
+ (read_makefile): Parse '|' in prerequisite list.
+ (uniquize_deps): Consider ignore_mtime when comparing deps.
+ * remake.c (update_file_1, check_dep): Don't force remake for
+ dependencies that have d->ignore_mtime.
+ * commands.c (FILE_LIST_SEPARATOR): New constant.
+ (set_file_variables): Don't include a
+ prerequisite in $+, $^ or $? if d->ignore_mtime.
+ Define $|.
+
+2002-06-18 Paul D. Smith <psmith@gnu.org>
+
+ * make.texinfo: Updates for next revision. New date/rev/etc.
+ Recreate all Info menus. Change license on the manual to the GNU
+ Free Documentation License. A number of typos.
+ (Variables Simplify): Don't use "-" before it's defined.
+ (Automatic Prerequisites): Rewrite the target example to work
+ properly if the compile fails. Remove incorrect comments about
+ how "set -e" behaves.
+ (Text Functions): Move the "word", "wordlist", "words", and
+ "firstword" functions here, from "File Name Functions".
+ * make-stds.texi: Update from latest GNU version.
+ * fdl.texi: (created) Import the latest GNU version.
+
+2002-06-06 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (do_variable_definition): New function: extract the
+ part of try_variable_definition() that actually sets the value
+ into a separate function.
+ (try_variable_definition): Call do_variable_definition() after
+ parsing the variable definition string.
+ (define_variable_in_set): Make the name argument const.
+
+ * variable.h (enum variable_flavor): Make public.
+ (do_variable_definition): Create prototype.
+
+ * read.c (read_all_makefiles): Create a new built-in variable,
+ MAKEFILE_LIST.
+ (read_makefile): Add each makefile read in to this variable value.
+
+2002-05-18 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * Makefile.DOS.template: Tweak according to changes in the
+ distribution. Add back the dependencies of *.o files.
+
+ * configh.dos.template: Synchronize with config.h.in.
+
+2002-05-09 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (file_timestamp_now): Use K&R function declaration.
+
+ * getloadavg.c (getloadavg): Merge setlocale() fix from sh-utils
+ getloadavg.c. Autoconf thinks QNX is SVR4-like, but it isn't, so
+ #undef it. Remove predefined setup of NLIST_STRUCT. Decide
+ whether to include nlist.h based on HAVE_NLIST_H. Change obsolete
+ NLIST_NAME_UNION to new HAVE_STRUCT_NLIST_N_UN_N_NAME.
+ * configure.in (NLIST_STRUCT): Define this if we have nlist.h and
+ nlist.n_name is a pointer rather than an array.
+
+ * acinclude.m4 (make_FUNC_SETVBUF_REVERSED): Grab the latest
+ version of AC_FUNC_SETVBUF_REVERSED from autoconf CVS.
+ * configure.in: Use it instead of the old version.
+
+ * main.c (main): Prefer setvbuf() to setlinebuf().
+
+2002-05-08 Paul D. Smith <psmith@gnu.org>
+
+ * Makefile.am (make_LDADD): Add GETLOADAVG_LIBS.
+ (loadavg_LDADD): Ditto.
+
+2002-04-29 Paul D. Smith <psmith@gnu.org>
+
+ * expand.c (recursively_expand_for_file): Rename
+ recursively_expand() to recursively_expand_for_file() and provide
+ an extra argument, struct file. If the argument is provided, set
+ the variable scope to that of the file before expanding.
+ * variable.h (recursively_expand): Make this a macro that invokes
+ recursively_expand_for_file() with a NULL file pointer.
+ * variable.c (target_environment): Call the renamed function and
+ provide the current file context.
+ Fixes Debian bug #144306.
+
+2002-04-28 Paul D. Smith <psmith@gnu.org>
+
+ Allow $(call ...) user-defined variables to be self-referencing
+ without throwing an error. Allows implementation of transitive
+ closures, among other possibly useful things.
+ Requested by: Philip Guenther <guenther@sendmail.com>
+
+ * variable.h (struct variable): Add a new field: exp_count, and
+ new macros to hold its size and maximum value.
+ (warn_undefined): Make this a macro.
+ * variable.c (define_variable_in_set): Initialize it.
+ * expand.c (recursively_expand): If we detect recursive expansion
+ of a variable, check the exp_count field. If it's greater than 0
+ allow the recursion and decrement the count.
+ (warn_undefined): Remove this (now a macro in variable.h).
+ * function.c (func_call): Before we expand the user-defined
+ function, modify its exp_count field to contain the maximum
+ number of recursive calls we'll allow. After the call, reset it
+ to 0.
+
+2002-04-21 Paul D. Smith <psmith@gnu.org>
+
+ Modified to use latest autoconf (2.53), automake (1.6.1), and
+ gettext (0.11.1). We're using gettext's new "external" support,
+ to avoid including libintl source with GNU make.
+
+ * README.cvs: New file. Explain how to build GNU make from CVS.
+
+ * configure.in: Modify checking for the system glob library.
+ Use AC_EGREP_CPP instead of AC_TRY_CPP. Remove the setting of
+ GLOBDIR (we will always put "glob" in SUBDIRS, so automake
+ etc. will manage it correctly). Set an automake conditional
+ USE_LOCAL_GLOB to decide whether to compile the glob library.
+
+ * getloadavg.c (main): Include make.h in the "TEST" program to
+ avoid warnings.
+
+ * Makefile.am: Remove special rules for loadavg. Replace them
+ with Automake capabilities for building extra programs.
+
+ * signame.c: This file does nothing if the system provide
+ strsignal(). If not, it implements strsignal(). If the system
+ doesn't define sys_siglist, then we make our own; otherwise we use
+ the system version.
+ * signame.h: Removed.
+
+ * main.c (main): No need to invoke signame_init(). Update copyright.
+
+ * ABOUT-NLS: Removed.
+ * gettext.c: Removed.
+ * gettext.h: Get a simplified copy from the gettext package.
+ * po/*: Created.
+ * i18n/*.po: Moved to po/.
+ * i18n/: Removed.
+
+ * config/*: Created. Contains package configuration helper files.
+ * config.guess, config.sub: Moved to config directory.
+
+ * configure.in (AC_CONFIG_FILES): Add po/Makefile.in, config/Makefile.
+ Rework to use new-style autoconf features. Use the "external"
+ mode for gettext. Make the build.sh config file conditional on
+ whether build.sh.in exists, to avoid autoconf errors.
+ * acinclude.m4: Removed almost all macros as being obsolete.
+ Rewrote remaining macros to use AC_DEFINE.
+ * acconfig.h: Removed.
+
+ * Makefile.am (EXTRA_DIST): Add config/config.rpath. Use a
+ conditional to handle customs support. Remove special handling
+ for i18n features.
+
+2002-04-20 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_call): Don't mark the argument variables $1,
+ etc. as recursive. They've already been fully expanded so
+ there's no need to do it again, and doing so strips escaped $'s.
+ Reported by Sebastian Glita <glseba@yahoo.com>.
+
+ * remake.c (notice_finished_file): Walk through double-colon
+ entries via the prev field, not the next field!
+ Reported by Greg McGary <greg@mcgary.org>.
+
+ * main.c (main): If the user specifies -q and asks for a specific
+ target which is a makefile, we got an assert. In that case it
+ turns out we should continue normally instead.
+
+ * i18n/de.po, i18n/fr.po: Installed an updated translation.
+
+ * i18n/he.po: Installed a new translation.
+
+2002-01-07 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/es.po, i18n/ru.po: Installed an updated translation.
+
+2001-12-04 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/ja.po: Installed an updated translation.
+
+2001-09-06 Paul Eggert <eggert@twinsun.com>
+
+ * configure.in (AC_CHECK_HEADERS): Add sys/resource.h.
+ (AC_CHECK_FUNCS): Add getrlimit, setrlimit.
+
+ * main.c: Include <sys/resource.h> if it, getrlimit, and setrlimit
+ are available.
+ (main): Get rid of any avoidable limit on stack size.
+
+2001-09-04 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/da.po: Installed an updated translation.
+
+2001-08-03 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/fr.po: Installed an updated translation.
+ Resolves Debian bug #106720.
+
+2001-06-13 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/da.po, configure.in (ALL_LINGUAS): Installed a new
+ translation.
+
+2001-06-11 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/ko.po: Installed a new translation.
+
+2001-05-06 Paul D. Smith <psmith@gnu.org>
+
+ Modify the EINTR handling.
+
+ * job.c (new_job): Reorganize the jobserver algorithm. Reorder
+ the way in which we manage the file descriptor/signal handler race
+ trap to be more efficient.
+
+2001-05-06 Paul Eggert <eggert@twinsun.com>
+
+ Restart almost all system calls that are interrupted, instead
+ of worrying about EINTR. The lone exception is the read() for
+ job tokens.
+
+ * configure.in (HAVE_SA_RESTART): New macro.
+ (MAKE_JOBSERVER): Define to 1 only if HAVE_SA_RESTART.
+ * main.c (main): Use SA_RESTART instead of the old,
+ nonstandard SA_INTERRUPT.
+
+ * configure.in (AC_CHECK_FUNCS): Add bsd_signal.
+ * main.c (bsd_signal): New function or macro,
+ if the implementation doesn't supply it.
+ (The bsd_signal function will be in POSIX 1003.1-200x.)
+ (HANDLESIG): Remove.
+ (main, FATAL_SIG): Use bsd_signal instead of signal or HANDLESIG.
+
+ * make.h (EINTR_SET): Remove.
+ (SA_RESTART): New macro.
+
+ * arscan.c (ar_member_touch): Don't worry about EINTR.
+ * function.c (func_shell): Likewise.
+ * job.c (reap_children, free_child, new_job): Likewise.
+ * main.c (main): Likewise.
+ * remake.c (touch_file, name_mtime): Likewise.
+
+ * arscan.c (ar_member_touch): Fix bug uncovered by EINTR removal;
+ if fstat failed with errno!=EINTR, the error was ignored.
+
+ * job.c (set_child_handler_action_flags): New function.
+ (new_job): Use it to temporarily clear the SIGCHLD action flags
+ while reading the token.
+
+2001-05-02 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (start_job_command): Don't add define/endef per-line flags
+ to the top-level flags setting.
+
+2001-04-03 Paul D. Smith <psmith@gnu.org>
+
+ * arscan.c (VMS_get_member_info,ar_scan) [VMS]: VMS sets the low
+ bit on error, so check for odd return values, not non-0 return
+ values.
+ (VMS_get_member_info): Calculate the timezone differences correctly.
+ Reported by John Fowler <jfowler@nyx.net>.
+
+
+2001-03-14 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (lookup_variable) [VMS]: Null-terminate the variable
+ value before invoking define_variable().
+ Reported by John Fowler <jfowler@nyx.net>.
+
+2001-02-07 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (record_target_var): If we reset the variable due to a
+ command-line variable setting overriding it, turn off the "append"
+ flag.
+
+2001-01-17 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (lookup_variable) [VMS]: When getting values from the
+ environment, allocate enough space for the _value_ plus escapes,
+ not enough space for the name plus escapes :-/.
+ Reported by John Fowler <jfowler@nyx.net>.
+
+ * remake.c (f_mtime): Removed the "***" prefix from the mod time
+ warnings that make generates, so it doesn't look like an error.
+ Reported by Karl Berry <karl@gnu.org>.
+
+
+ Fix for PR/2020: Rework appended target-specific variables. I'm
+ fairly confident this algorithm is finally correct.
+
+ * expand.c (allocated_variable_append): Rewrite. Instead of
+ expanding each appended variable then adding all the expanded
+ strings together, we append all the unexpanded values going up
+ through the variable set contexts, then expand the final result.
+ This behaves just like non-target-specific appended variable
+ values, while the old way didn't in various corner cases.
+ (variable_append): New function: recursively append the unexpanded
+ value of a variable, walking from the outermost variable scope to
+ the innermost.
+ * variable.c (lookup_variable): Remove the code that looked up the
+ variable set list if the found variable was "append". We don't
+ need this anymore.
+ (lookup_variable_in_set): Make this non-static so we can use it
+ elsewhere.
+ (try_variable_definition): Use lookup_variable_in_set() rather
+ than faking out current_variable_set_list by hand (cleanup).
+ * variable.h: Add a prototype for the now non-static
+ lookup_variable_in_set().
+
+2000-11-17 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime) [WINDOWS32]: On various advice, I changed the
+ WINDOWS32 port to assume timestamps can be up to 3 seconds away
+ before throwing a fit.
+
+2000-11-17 Paul D. Smith <psmith@gnu.org>
+
+ * read.c (readline): CRLF calculations had a hole, if you hit the
+ buffer grow scenario just right. Reworked the algorithm to avoid
+ the need for len or lastlen at all. Problem description with
+ sample code chages provided by Chris Faylor <cgf@redhat.com>.
+
+2000-10-24 Paul D. Smith <psmith@gnu.org>
+
+ * gettext.c (SWAP): Declare this with the prototype, otherwise
+ some systems don't work (non-32-bit? Reported for Cray T3E).
+ Reported by Thorstein Thorsteinsson <thor@signe.teokem.lu.se>.
+
+2000-10-05 Paul D. Smith <psmith@gnu.org>
+
+ * acinclude.m4 (AM_LC_MESSAGES): Remove undefined macro
+ AM_LC_MESSAGES; it doesn't seem to do anything anyway??
+
+ * i18n/gl.po, configure.in (ALL_LINGUAS): New Galician translation.
+
+2000-09-22 Paul D. Smith <psmith@gnu.org>
+
+ * gettext.c: Don't #define _GETTEXT_H here; we only include some
+ parts of the real gettext.h here, and we expect to really include
+ the real gettext.h later. If we keep this #define, it's ignored.
+
+2000-09-21 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (log_working_directory): Rework the text to use complete
+ sentences, to make life simpler for the translators.
+
+2000-08-29 Paul D. Smith <psmith@gnu.org>
+
+ * file.c (remove_intermediates): Print a debug message before we
+ remove intermediate files, so the user (if she uses -d) knows
+ what's going on.
+
+2000-08-21 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (try_variable_definition): Change how we handle
+ target-specific append variable defns: instead of just setting the
+ value, expand it as an append _but_ only within the current
+ target's context. Otherwise we lose all but the last value if the
+ variable is appended more than once within the current target
+ context. Fixes PR/1831.
+
+2000-08-16 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_shell): Nul-terminate the buffer before
+ printing an exec error message (just in case it's not!).
+ Fixes PR/1860, reported by Joey Hess <joey@valinux.com>.
+
+2000-07-25 Paul D. Smith <psmith@gnu.org>
+
+ * job.c (construct_command_argv_internal): Add "~" to the list of
+ sh_chars[] which disallow optimizing out the shell call.
+
+2000-07-23 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, make.texinfo: Document .LOW_RESOLUTION_TIME, which
+ supersedes --disable-nsec-timestamps.
+ * make.texinfo: Consistently use "time stamp" instead of "timestamp".
+ * README: Remove --disable-nsec-timestamps.
+
+ * filedef.h (struct file.low_resolution_time): New member.
+ * file.c (snap_deps): Add support for .LOW_RESOLUTION_TIME.
+ * remake.c (update_file_1):
+ Avoid spurious rebuilds due to low resolution time stamps,
+ generalizing the earlier code that applied only to archive members.
+ (f_mtime): Archive members always have low resolution time stamps.
+
+ * configure.in: Remove --disable-nsec-timestamps, as this has
+ been superseded by .LOW_RESOLUTION_TIME.
+
+2000-07-23 Paul Eggert <eggert@twinsun.com>
+
+ * configure.in (enable_nsec_timestamps): Renamed from
+ make_cv_nsec_timestamps, since enable/disable options
+ shouldn't be cached.
+
+2000-07-23 Bruno Haible <haible@clisp.cons.org>
+ and Paul Eggert <eggert@twinsun.com>
+
+ * file.c (file_timestamp_now):
+ Use preprocessor-time check for FILE_TIMESTAMP_HI_RES
+ so that clock_gettime is not linked unless needed.
+
+ * filedef.h (FILE_TIMESTAMP_HI_RES):
+ Remove definition; "configure" now does this.
+
+ * configure.in (jm_AC_TYPE_UINTMAX_T): Move up,
+ to before high resolution file timestamp check,
+ since that check now uses uintmax_t.
+ (FILE_TIMESTAMP_HI_RES): Define to nonzero if the code should use
+ high resolution file timestamps.
+ (HAVE_CLOCK_GETTIME): Do not define if !FILE_TIMESTAMP_HI_RES,
+ so that we don't link in clock_gettime unnecessarily.
+
+2000-07-17 Paul D. Smith <psmith@gnu.org>
+
+ * i18n/ja.po: New version of the translation file.
+
+2000-07-07 Paul D. Smith <psmith@gnu.org>
+
+ * remake.c (f_mtime): If NO_FLOAT is defined, don't bother with
+ the offset calculation.
+ (name_mtime): Replace EINTR test with EINTR_SET macro.
+
+2000-07-07 Paul Eggert <eggert@twinsun.com>
+
+ Fix for PR/1811:
+
+ * remake.c (update_file_1):
+ Avoid spurious rebuilds of archive members due to their
+ timestamp resolution being only one second.
+ (f_mtime): Avoid spurious warnings of timestamps in the future due to
+ the clock's resolution being lower than file timestamps'.
+ When warning about future timestamps, report only the discrepancy,
+ not the absolute value of the timestamp and the current time.
+
+ * file.c (file_timestamp_now): New arg RESOLUTION.
+ * filedef.h (file_timestamp_now): Likewise.
+ (FILE_TIMESTAMP_NS): Now returns int. All uses changed.
+
+2000-07-05 Paul D. Smith <psmith@gnu.org>
+
+ * variable.c (lookup_variable) [VMS]: Remove vestigial references
+ to listp. Fixes PR/1793.
+
+2000-06-26 Paul Eggert <eggert@twinsun.com>
+
+ * Makefile.am (MAINTAINERCLEANFILES): New macro, with stamp-pot in it.
+
+ * dir.c (vms_hash): Ensure ctype macro args are nonnegative.
+
+ * remake.c (f_mtime): Remove unused var memtime.
+
+2000-06-25 Martin Buchholz <martin@xemacs.org>
+
+ * make.texinfo, NEWS, TODO.private: Minor spelling corrections.
+ Ran spell-check on make.texinfo.
+
+2000-06-23 Paul D. Smith <psmith@gnu.org>
+
+ * main.c (main): Replace EXIT_SUCCESS, EXIT_FAILURE, and
+ EXIT_TROUBLE with MAKE_SUCCESS, MAKE_FAILURE, and MAKE_TROUBLE.
+ * make.h: Define these macros.
+
+ * Version 3.79.1 released.
+
+ * configure.in: Add a new option, --disable-nsec-timestamps, to
+ avoid using sub-second timestamps on systems that support it. It
+ can lead to problems, e.g. if your makefile relies on "cp -p".
+ * README.template: Document the issue with "cp -p".
+
+ * config.guess, config.sub: Updated.
+
+
+
+See ChangeLog.2, available in the Git repository at:
+
+ http://git.savannah.gnu.org/cgit/make.git/tree/
+
+for earlier changes.
+
+
+Copyright (C) 2000-2013 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..095b1eb
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,231 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free
+Software Foundation, Inc.
+
+This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+These are generic installation instructions.
+
+ The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation. It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions. Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+ It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring. (Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.)
+
+ If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release. If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+ The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'. You only need
+`configure.ac' if you want to change it or regenerate `configure' using
+a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+ 1. `cd' to the directory containing the package's source code and type
+ `./configure' to configure the package for your system. If you're
+ using `csh' on an old version of System V, you might need to type
+ `sh ./configure' instead to prevent `csh' from trying to execute
+ `configure' itself.
+
+ Running `configure' takes awhile. While running, it prints some
+ messages telling which features it is checking for.
+
+ 2. Type `make' to compile the package.
+
+ 3. Optionally, type `make check' to run any self-tests that come with
+ the package.
+
+ 4. Type `make install' to install the programs and any data files and
+ documentation.
+
+ 5. You can remove the program binaries and object files from the
+ source code directory by typing `make clean'. To also remove the
+ files that `configure' created (so you can compile the package for
+ a different kind of computer), type `make distclean'. There is
+ also a `make maintainer-clean' target, but that is intended mainly
+ for the package's developers. If you use it, you may have to get
+ all sorts of other programs in order to regenerate files that came
+ with the distribution.
+
+Compilers and Options
+=====================
+
+Some systems require unusual options for compilation or linking that the
+`configure' script does not know about. Run `./configure --help' for
+details on some of the pertinent environment variables.
+
+ You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment. Here
+is an example:
+
+ ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+
+ *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory. To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'. `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script. `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+ If you have to use a `make' that does not support the `VPATH'
+variable, you have to compile the package for one architecture at a
+time in the source code directory. After you have installed the
+package for one architecture, use `make distclean' before reconfiguring
+for another architecture.
+
+Installation Names
+==================
+
+By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc. You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PREFIX'.
+
+ You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files. If you
+give `configure' the option `--exec-prefix=PREFIX', the package will
+use PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+ In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files. Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+ If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System). The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+ For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+There may be some features `configure' cannot figure out automatically,
+but needs to determine by the type of machine the package will run on.
+Usually, assuming the package is built to be run on the _same_
+architectures, `configure' can figure that out, but if it prints a
+message saying it cannot guess the machine type, give it the
+`--build=TYPE' option. TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+ CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+ OS KERNEL-OS
+
+ See the file `config.sub' for the possible values of each field. If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+ If you are _building_ compiler tools for cross-compiling, you should
+use the `--target=TYPE' option to select the type of system they will
+produce code for.
+
+ If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+If you want to set default values for `configure' scripts to share, you
+can create a site shell script called `config.site' that gives default
+values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists. Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+Variables not defined in a site shell script can be set in the
+environment passed to `configure'. However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost. In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'. For example:
+
+ ./configure CC=/usr/local2/bin/gcc
+
+will cause the specified gcc to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+`configure' Invocation
+======================
+
+`configure' recognizes the following options to control how it operates.
+
+`--help'
+`-h'
+ Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+ Print the version of Autoconf used to generate the `configure'
+ script, and exit.
+
+`--cache-file=FILE'
+ Enable the cache: use and save the results of the tests in FILE,
+ traditionally `config.cache'. FILE defaults to `/dev/null' to
+ disable caching.
+
+`--config-cache'
+`-C'
+ Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+ Do not print messages saying which checks are being made. To
+ suppress all normal output, redirect it to `/dev/null' (any error
+ messages will still be shown).
+
+`--srcdir=DIR'
+ Look for the package's source code in directory DIR. Usually
+ `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options. Run
+`configure --help' for more details.
+
diff --git a/LICENSE b/LICENSE
new file mode 120000
index 0000000..d24842f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+COPYING
\ No newline at end of file
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..dbadf26
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,18 @@
+name: "GNU Make"
+description:
+ "GNU Make is a tool which controls the generation of executables and other "
+ "non-source files of a program from the program's source files."
+
+third_party {
+ url {
+ type: HOMEPAGE
+ value: "https://www.gnu.org/software/make/"
+ }
+ url {
+ type: GIT
+ value: "https://git.savannah.gnu.org/git/make.git"
+ }
+ version: "4.2.1"
+ last_upgrade_date { year: 2018 month: 10 day: 2 }
+ license_type: RESTRICTED
+}
diff --git a/MODULE_LICENSE_GPL b/MODULE_LICENSE_GPL
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_GPL
diff --git a/Makefile.DOS.template b/Makefile.DOS.template
new file mode 100644
index 0000000..47d83eb
--- /dev/null
+++ b/Makefile.DOS.template
@@ -0,0 +1,587 @@
+# -*-Makefile-*- template for DJGPP
+# Makefile.in generated automatically by automake 1.2 from Makefile.am
+#
+# Copyright (C) 1994-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+SHELL = /bin/sh
+
+srcdir = .
+VPATH = $(srcdir)
+# $DJDIR is defined automatically by DJGPP to point
+# to the root of the DJGPP installation tree.
+prefix = /dev/env/DJDIR
+exec_prefix = ${prefix}
+
+bindir = /bin
+datadir = /share
+libdir = /lib
+infodir = /info
+mandir = /man
+includedir = /include
+oldincludedir = c:/djgpp/include
+
+DESTDIR = /dev/env/DJDIR
+
+pkgdatadir = $(datadir)/make
+pkglibdir = $(libdir)/make
+pkgincludedir = $(includedir)/make
+localedir = $(datadir)/locale
+
+INSTALL = ${exec_prefix}/bin/ginstall -c
+INSTALL_PROGRAM = ${exec_prefix}/bin/ginstall -c
+INSTALL_DATA = ${exec_prefix}/bin/ginstall -c -m 644
+INSTALL_SCRIPT = ${exec_prefix}/bin/ginstall -c
+transform = s,x,x,
+
+# This will fail even if they don't have a Unix-like shell (stock DOS
+# shell doesn't know about `false'). The only difference is that they
+# get "Error -1" instead of "Error 1".
+EXIT_FAIL = false
+
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+EXEEXT = .exe
+OBJEXT = o
+
+AR = ar
+AWK = gawk
+CC = gcc
+CPP = gcc -E
+LIBOBJS =
+MAKEINFO = ${exec_prefix}/bin/makeinfo
+PACKAGE = make
+PERL = perl
+RANLIB = ranlib
+REMOTE = stub
+VERSION = %VERSION%
+
+AUTOMAKE_OPTIONS = 1.2
+
+bin_PROGRAMS = %PROGRAMS%$(EXEEXT)
+
+make_SOURCES = %SOURCES%
+# This should include the glob/ prefix
+libglob_a_SOURCES = %GLOB_SOURCES%
+make_LDADD = glob/libglob.a
+
+man_MANS = make.1
+
+INCLUDES = -I$(srcdir)/glob -DLIBDIR=\"$(prefix)$(libdir)\" -DINCLUDEDIR=\"$(prefix)$(includedir)\" -DLOCALEDIR=\"$(prefix)$(localedir)\"
+
+BUILT_SOURCES = README build.sh-in
+
+EXTRA_DIST = $(BUILT_SOURCES) $(man_MANS) README.customs remote-cstms.c make-stds.texi texinfo.tex SCOPTIONS SMakefile Makefile.ami README.Amiga config.ami amiga.c amiga.h NMakefile README.DOS configh.dos configure.bat makefile.com README.W32 build_w32.bat config.h-W32 subproc.bat make.lnk config.h-vms makefile.vms README.VMS vmsdir.h vmsfunctions.c vmsify.c gmk-default.scm gmk-default.h
+
+SUBDIRS = glob doc
+mkinstalldirs = ${exec_prefix}/bin/gmkdir -p
+CONFIG_HEADER = config.h
+CONFIG_CLEAN_FILES = build.sh
+PROGRAMS = $(bin_PROGRAMS)
+
+MAKE_HOST = i386-pc-msdosdjgpp
+
+
+DEFS = -I. -I$(srcdir) -I.
+CPPFLAGS = -DHAVE_CONFIG_H
+LDFLAGS =
+LIBS =
+make_OBJECTS = %OBJECTS%
+make_DEPENDENCIES = glob/libglob.a
+make_LDFLAGS =
+libglob_a_LIBADD =
+libglob_a_OBJECTS = %GLOB_OBJECTS%
+noinst_LIBRARIES = glob/libglob.a
+CFLAGS = -O2 -g
+COMPILE = $(CC) $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)
+LINK = $(CC) $(CFLAGS) $(LDFLAGS) -o $@
+TEXI2DVI = texi2dvi
+TEXINFO_TEX = $(srcdir)/config/texinfo.tex
+INFO_DEPS = doc/make.info
+DVIS = doc/make.dvi
+TEXINFOS = doc/make.texi
+noinst_TEXINFOS = doc/fdl.texi doc/make-stds.texi
+man1dir = $(mandir)/man1
+MANS = $(man_MANS)
+
+NROFF = nroff
+DIST_COMMON = README ABOUT-NLS AUTHORS COPYING ChangeLog INSTALL Makefile.am Makefile.in NEWS acconfig.h aclocal.m4 alloca.c build.sh-in config.h-in configure configure.ac getloadavg.c
+
+DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST)
+
+TAR = gtar
+GZIP = --best
+SOURCES = $(make_SOURCES)
+OBJECTS = $(make_OBJECTS)
+HEADERS = $(wildcard $(srcdir)/*.h)
+
+default: all
+
+.SUFFIXES:
+.SUFFIXES: .c .dvi .info .o .obj .ps .texi .tex .html
+
+mostlyclean-hdr:
+
+clean-hdr:
+
+distclean-hdr:
+ -rm -f config.h
+
+maintainer-clean-hdr:
+
+mostlyclean-binPROGRAMS:
+
+clean-binPROGRAMS:
+ -test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
+
+distclean-binPROGRAMS:
+
+maintainer-clean-binPROGRAMS:
+
+install-binPROGRAMS: $(bin_PROGRAMS)
+ @$(NORMAL_INSTALL)
+ $(mkinstalldirs) $(DESTDIR)$(bindir)
+ @list='$(bin_PROGRAMS)'; for p in $$list; do if test -f $$p; then echo " $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/`echo $$p | sed '$(transform)'`"; $(INSTALL_PROGRAM) $$p $(DESTDIR)$(bindir)/`echo $$p | sed '$(transform)'`; else :; fi; done
+
+uninstall-binPROGRAMS:
+ $(NORMAL_UNINSTALL)
+ list='$(bin_PROGRAMS)'; for p in $$list; do rm -f $(DESTDIR)$(bindir)/`echo $$p|sed '$(transform)'`.exe; done
+
+.c.o:
+ $(COMPILE) -c $<
+
+clean-noinstLIBRARIES:
+ -test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT) *$(EXEEXT) make.new core
+
+clean-compile:
+
+distclean-compile:
+ -rm -f *.tab.c *_tab.c
+
+maintainer-clean-compile:
+
+make$(EXEEXT): $(make_OBJECTS) $(make_DEPENDENCIES)
+ @command.com /c if exist make del make
+ @command.com /c if exist make.exe del make.exe
+ $(LINK) $(make_LDFLAGS) $(make_OBJECTS) $(make_LDADD) $(LIBS)
+
+# Documentation
+
+make.info: make.texi
+make.dvi: make.texi
+make.ps: make.dvi make.texi
+make.html: make.texi
+
+
+DVIPS = dvips
+
+.texi.info:
+ @command.com /c if exist make.info* del make.info*
+ @command.com /c if exist make.i* del make.i*
+ $(MAKEINFO) -I$(srcdir) --no-split $< -o ./$@
+
+.texi:
+ @command.com /c if exist make.info* del make.info*
+ @command.com /c if exist make.i* del make.i*
+ $(MAKEINFO) -I$(srcdir) --no-split $< -o ./$@
+
+.texi.dvi:
+ TEXINPUTS="$(srcdir);$$TEXINPUTS" MAKEINFO='$(MAKEINFO) -I $(srcdir)' $(TEXI2DVI) $<
+
+.dvi.ps:
+ $(DVIPS) $< -o $@
+
+# Other documentation formats
+
+html: html-recursive
+
+.texi.html:
+ @command.com /c if exist make.html* del make.html*
+ $(MAKEINFO) --html -I$(srcdir) --no-split $< -o ./$@
+
+install-info-am: $(INFO_DEPS)
+ @$(NORMAL_INSTALL)
+ $(mkinstalldirs) $(DESTDIR)$(infodir)
+ @for file in $(INFO_DEPS); do iifile=`echo $$file | sed "s|doc/||"`; d=$(srcdir); for ifile in `cd $$d && echo $$file`; do if test -f $$d/$$ifile; then echo " $(INSTALL_DATA) $$d/$$ifile $(DESTDIR)$(infodir)/$$iifile"; $(INSTALL_DATA) $$d/$$ifile $(DESTDIR)$(infodir)/$$iifile; else : ; fi; done; done
+ @$(POST_INSTALL)
+ @if $(SHELL) -c 'install-info --version | sed 1q | fgrep -s -v -i debian' >/dev/null 2>&1; then for file in $(INFO_DEPS); do iifile=`echo $$file | sed "s|doc/||"`; echo " install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/$$iifile"; install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/$$iifile || :; done; else : ; fi
+
+uninstall-info:
+ $(PRE_UNINSTALL)
+ @if $(SHELL) -c 'install-info --version | sed 1q | fgrep -s -v -i debian' >/dev/null 2>&1; then ii=yes; else ii=; fi; for file in $(INFO_DEPS); do test -z $ii || install-info --info-dir=$(DESTDIR)$(infodir) --remove $$file; done
+ $(NORMAL_UNINSTALL)
+ for file in $(INFO_DEPS); do (cd $(DESTDIR)$(infodir) && rm -f $$file); done
+
+dist-info: $(INFO_DEPS)
+ for base in $(INFO_DEPS); do d=$(srcdir); for file in `cd $$d && eval echo $$base*`; do test -f $(distdir)/$$file || ln $$d/$$file $(distdir)/$$file 2> /dev/null || cp -p $$d/$$file $(distdir)/$$file; done; done
+
+mostlyclean-aminfo:
+ -rm -f $(srcdir)/doc/make.aux $(srcdir)/doc/make.cp $(srcdir)/doc/make.cps $(srcdir)/doc/make.dvi \
+ $(srcdir)/doc/make.fn $(srcdir)/doc/make.fns $(srcdir)/doc/make.ky $(srcdir)/doc/make.kys \
+ $(srcdir)/doc/make.ps $(srcdir)/doc/make.log $(srcdir)/doc/make.pg $(srcdir)/doc/make.toc \
+ $(srcdir)/doc/make.tp $(srcdir)/doc/make.tps $(srcdir)/doc/make.vr $(srcdir)/doc/make.vrs \
+ $(srcdir)/doc/make.op $(srcdir)/doc/make.tr $(srcdir)/doc/make.cv $(srcdir)/doc/make.cn \
+ $(srcdir)/doc/make.html
+
+clean-aminfo:
+
+distclean-aminfo:
+
+maintainer-clean-aminfo:
+ for i in $(INFO_DEPS); do rm -f $$i*; done
+
+install-man1:
+ $(mkinstalldirs) $(DESTDIR)$(man1dir)
+ @list='$(man1_MANS)'; \
+ l2='$(man_MANS)'; for i in $$l2; do \
+ case "$$i" in \
+ *.1*) list="$$list $$i" ;; \
+ esac; \
+ done; \
+ for i in $$list; do \
+ if test -f $(srcdir)/$$i; then file=$(srcdir)/$$i; \
+ else file=$$i; fi; \
+ ext=`echo $$i | sed -e 's/^.*\\.//'`; \
+ inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
+ inst=`echo $$inst | sed '$(transform)'`.$$ext; \
+ echo " $(INSTALL_DATA) $$file $(DESTDIR)$(man1dir)/$$inst"; \
+ $(INSTALL_DATA) $$file $(DESTDIR)$(man1dir)/$$inst; \
+ done
+
+uninstall-man1:
+ @list='$(man1_MANS)'; \
+ l2='$(man_MANS)'; for i in $$l2; do \
+ case "$$i" in \
+ *.1*) list="$$list $$i" ;; \
+ esac; \
+ done; \
+ for i in $$list; do \
+ ext=`echo $$i | sed -e 's/^.*\\.//'`; \
+ inst=`echo $$i | sed -e 's/\\.[0-9a-z]*$$//'`; \
+ inst=`echo $$inst | sed '$(transform)'`.$$ext; \
+ echo " rm -f $(DESTDIR)$(man1dir)/$$inst"; \
+ rm -f $(DESTDIR)$(man1dir)/$$inst; \
+ done
+install-man: $(MANS)
+ @$(NORMAL_INSTALL)
+ $(MAKE) install-man1
+uninstall-man:
+ @$(NORMAL_UNINSTALL)
+ $(MAKE) uninstall-man1
+
+# Assume that the only thing to do in glob is to build libglob.a,
+# but do a sanity check: if $SUBDIRS will ever have more than
+# a single directory, yell bloody murder.
+all-recursive:
+ifeq ($(findstring glob, $(SUBDIRS)), glob)
+ @command.com /c if not exist glob\\nul md glob
+ @echo Making all in glob
+ $(MAKE) -C glob -f ../Makefile INCLUDES='-I$(srcdir) -I$(srcdir)/glob' DEFS='-I.. -I$(srcdir)' VPATH=$(srcdir)/glob libglob.a
+endif
+
+$(SUBDIRS):
+ command.com /c md $@
+
+libglob.a: $(libglob_a_OBJECTS)
+ command.com /c if exist libglob.a del libglob.a
+ $(AR) cru libglob.a $(libglob_a_OBJECTS) $(libglob_a_LIBADD)
+ $(RANLIB) libglob.a
+
+mostlyclean-recursive clean-recursive distclean-recursive \
+maintainer-clean-recursive check-recursive:
+ifeq ($(words $(SUBDIRS)), 2)
+ @echo Making $(shell echo $@ | sed s/-recursive//) in glob
+ $(MAKE) -C glob -f ../Makefile $(shell echo $@ | sed s/-recursive//)-am
+ @echo Making $(shell echo $@ | sed s/-recursive//) in doc
+ $(MAKE) -C doc -f ../Makefile $(shell echo $@ | sed s/-recursive//)-am
+else
+ @echo FATAL: There is more than two directory in "($(SUBDIRS))"
+ @$(EXIT_FAIL)
+endif
+
+tags-in-glob: $(libglob_a_SOURCES)
+ etags $(addprefix $(srcdir)/,$^) -o ./glob/TAGS
+
+tags-recursive:
+ifeq ($(words $(SUBDIRS)), 2)
+ $(MAKE) tags-in-glob
+else
+ @echo FATAL: There is more than two directory in "($(SUBDIRS))"
+ @$(EXIT_FAIL)
+endif
+
+tags: TAGS
+
+ID: $(HEADERS) $(SOURCES)
+ mkid $(srcdir)/$(SOURCES) $(srcdir)/$(libglob_a_SOURCES) ./config.h $(HEADERS)
+
+TAGS: tags-recursive $(HEADERS) $(srcdir)/$(SOURCES) config.h $(TAGS_DEPENDENCIES)
+ etags -i ./glob/TAGS $(ETAGS_ARGS) $(srcdir)/$(SOURCES) ./config.h $(HEADERS)
+
+mostlyclean-tags:
+
+clean-tags:
+
+distclean-tags:
+ -rm -f TAGS ID
+
+maintainer-clean-tags:
+
+distdir = $(PACKAGE)-$(VERSION)
+top_distdir = $(distdir)
+
+# This target untars the dist file and tries a VPATH configuration. Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+ rm -rf $(distdir)
+ GZIP=$(GZIP) $(TAR) zxf $(distdir).tar.gz
+ mkdir $(distdir)/=build
+ mkdir $(distdir)/=inst
+ dc_install_base=`cd $(distdir)/=inst && pwd`; cd $(distdir)/=build && ../configure --srcdir=.. --prefix=$$dc_install_base && $(MAKE) && $(MAKE) dvi && $(MAKE) check && $(MAKE) install && $(MAKE) installcheck && $(MAKE) dist
+ rm -rf $(distdir)
+ @echo "========================"; echo "$(distdir).tar.gz is ready for distribution"; echo "========================"
+dist: distdir
+ -chmod -R a+r $(distdir)
+ GZIP=$(GZIP) $(TAR) chozf $(distdir).tar.gz $(distdir)
+ rm -rf $(distdir)
+dist-all: distdir
+ -chmod -R a+r $(distdir)
+ GZIP=$(GZIP) $(TAR) chozf $(distdir).tar.gz $(distdir)
+ rm -rf $(distdir)
+distdir: $(DISTFILES)
+ rm -rf $(distdir)
+ mkdir $(distdir)
+ -chmod 777 $(distdir)
+ @for file in $(DISTFILES); do d=$(srcdir); test -f $(distdir)/$$file || ln $$d/$$file $(distdir)/$$file 2> /dev/null || cp -p $$d/$$file $(distdir)/$$file; done; for subdir in $(SUBDIRS); do test -d $(distdir)/$$subdir || mkdir $(distdir)/$$subdir || exit 1; chmod 777 $(distdir)/$$subdir; (cd $$subdir && $(MAKE) top_distdir=../$(top_distdir)/$$subdir distdir=../$(distdir)/$$subdir distdir) || exit 1; done
+ $(MAKE) top_distdir="$(top_distdir)" distdir="$(distdir)" dist-info
+ $(MAKE) top_distdir="$(top_distdir)" distdir="$(distdir)" dist-hook
+
+info: info-recursive
+info-recursive:
+ifeq ($(findstring doc, $(SUBDIRS)), doc)
+ @command.com /c if not exist doc\\nul md doc
+ @echo Making all in doc
+ $(MAKE) -C doc -f ../Makefile VPATH=$(srcdir)/doc make.info
+endif
+
+dvi: dvi-recursive
+dvi-recursive:
+ifeq ($(findstring doc, $(SUBDIRS)), doc)
+ @command.com /c if not exist doc\\nul md doc
+ @echo Making all in doc
+ $(MAKE) -C doc -f ../Makefile VPATH=$(srcdir)/doc make.dvi
+endif
+
+ps: ps-recursive
+ps-recursive:
+ifeq ($(findstring doc, $(SUBDIRS)), doc)
+ @command.com /c if not exist doc\\nul md doc
+ @echo Making all in doc
+ $(MAKE) -C doc -f ../Makefile VPATH=$(srcdir)/doc make.ps
+endif
+
+html-recursive:
+ifeq ($(findstring doc, $(SUBDIRS)), doc)
+ @command.com /c if not exist doc\\nul md doc
+ @echo Making all in doc
+ $(MAKE) -C doc -f ../Makefile VPATH=$(srcdir)/doc make.html
+endif
+
+check: all-am check-recursive check-local
+ @:
+installcheck: installcheck-recursive
+all-recursive-am: config.h
+ $(MAKE) all-recursive
+
+all-am: Makefile $(PROGRAMS) config.h info
+
+install-exec-am: install-binPROGRAMS
+
+install-data-am: install-info-am
+
+uninstall-am: uninstall-binPROGRAMS uninstall-info
+
+install-exec: install-exec-recursive install-exec-am
+ @$(NORMAL_INSTALL)
+
+install-data: install-data-recursive install-data-am
+ @$(NORMAL_INSTALL)
+
+install-recursive uninstall-recursive:
+ @:
+
+install: install-recursive install-exec-am install-data-am
+ @:
+
+uninstall: uninstall-recursive uninstall-am
+
+all: all-recursive-am all-am
+
+install-strip:
+ $(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' INSTALL_SCRIPT='$(INSTALL_PROGRAM)' install
+installdirs: installdirs-recursive
+ $(mkinstalldirs) $(bindir) $(infodir)
+
+
+mostlyclean-generic:
+ -test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -rm -f Makefile $(DISTCLEANFILES)
+ -rm -f config.cache config.log stamp-h stamp-h[0-9]*
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ -test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+mostlyclean-am: mostlyclean-hdr mostlyclean-binPROGRAMS mostlyclean-compile mostlyclean-aminfo mostlyclean-tags mostlyclean-generic
+
+clean-am: clean-hdr clean-binPROGRAMS clean-compile clean-aminfo clean-tags clean-generic mostlyclean-am
+
+distclean-am: distclean-hdr distclean-binPROGRAMS distclean-compile distclean-aminfo distclean-tags distclean-generic clean-am
+
+maintainer-clean-am: maintainer-clean-hdr maintainer-clean-binPROGRAMS maintainer-clean-compile maintainer-clean-aminfo maintainer-clean-tags maintainer-clean-generic distclean-am
+
+mostlyclean: mostlyclean-recursive mostlyclean-am
+
+clean: clean-noinstLIBRARIES clean-recursive clean-am
+
+distclean: distclean-recursive distclean-am
+ rm -f config.status
+
+maintainer-clean: maintainer-clean-recursive maintainer-clean-am
+ @echo "This command is intended for maintainers to use;"
+ @echo "it deletes files that may require special tools to rebuild."
+ rm -f config.status
+
+.PHONY: default mostlyclean-hdr distclean-hdr clean-hdr \
+maintainer-clean-hdr mostlyclean-binPROGRAMS distclean-binPROGRAMS \
+clean-binPROGRAMS maintainer-clean-binPROGRAMS uninstall-binPROGRAMS \
+install-binPROGRAMS mostlyclean-compile distclean-compile clean-compile \
+maintainer-clean-compile install-info-am uninstall-info \
+mostlyclean-aminfo distclean-aminfo clean-aminfo \
+maintainer-clean-aminfo install-data-recursive uninstall-data-recursive \
+install-exec-recursive uninstall-exec-recursive installdirs-recursive \
+uninstalldirs-recursive all-recursive check-recursive check-am \
+installcheck-recursive info-recursive dvi-recursive \
+mostlyclean-recursive distclean-recursive clean-recursive \
+maintainer-clean-recursive tags tags-recursive mostlyclean-tags \
+distclean-tags clean-tags maintainer-clean-tags distdir \
+mostlyclean-depend distclean-depend clean-depend \
+maintainer-clean-depend info dvi check-local installcheck \
+all-recursive-am all-am install-exec-am install-data-am uninstall-am \
+install-exec install-data install uninstall all installdirs \
+mostlyclean-generic distclean-generic clean-generic \
+maintainer-clean-generic clean mostlyclean distclean maintainer-clean \
+html
+
+
+# --------------- Local DIST Section
+
+# Install the w32 subdirectory
+#
+dist-hook:
+ (cd $(srcdir); \
+ w32=`find w32 -follow \( -name .git -prune \) -o -type f -print`; \
+ tar chf - $$w32) \
+ | (cd $(distdir); tar xfBp -)
+
+# --------------- Local CHECK Section
+
+# Note: check-loadavg is NOT a prerequisite of check-local, since
+# there's no uptime utility, and the test it does doesn't make sense
+# on MSDOS anyway.
+check-local: check-shell check-regression
+ @banner=" Regression PASSED: GNU Make $(VERSION) ($(MAKE_HOST)) built with $(CC) "; \
+ dashes=`echo "$$banner" | sed s/./=/g`; \
+ echo; \
+ echo "$$dashes"; \
+ echo "$$banner"; \
+ echo "$$dashes"; \
+ echo
+
+.PHONY: check-loadavg check-shell check-regression
+
+# > check-shell
+#
+# check-shell is designed to fail if they don't have a Unixy shell
+# installed. The test suite requires such a shell.
+check-shell:
+ @echo If Make says Error -1, you do not have Unix-style shell installed
+ @foo=bar.exe :
+
+# > check-loadavg
+#
+loadavg: loadavg.c config.h
+ @rm -f loadavg
+ $(LINK) -DTEST $(make_LDFLAGS) loadavg.c $(LIBS)
+# We copy getloadavg.c into a different file rather than compiling it
+# directly because some compilers clobber getloadavg.o in the process.
+loadavg.c: getloadavg.c
+ ln $(srcdir)/getloadavg.c loadavg.c || \
+ cp $(srcdir)/getloadavg.c loadavg.c
+check-loadavg: loadavg
+ @echo The system uptime program believes the load average to be:
+ -uptime
+ @echo The GNU load average checking code believes:
+ -./loadavg
+
+# > check-regression
+#
+# Look for the make test suite, and run it if found. Look in MAKE_TEST if
+# specified, or else in the srcdir or the distdir, their parents, and _their_
+# parents.
+#
+check-regression:
+ @if test -f "$(srcdir)/tests/run_make_tests"; then \
+ if $(PERL) -v >/dev/null 2>&1; then \
+ case `cd $(srcdir); pwd` in `pwd`) : ;; \
+ *) test -d tests || mkdir tests; \
+ for f in run_make_tests run_make_tests.pl test_driver.pl scripts; do \
+ rm -rf tests/$$f; cp -pr $(srcdir)/tests/$$f tests; \
+ done ;; \
+ esac; \
+ echo "cd tests && $(PERL) ./run_make_tests.pl -make ../make.exe $(MAKETESTFLAGS)"; \
+ cd tests && $(PERL) ./run_make_tests.pl -make ../make.exe $(MAKETESTFLAGS); \
+ else \
+ echo "Can't find a working Perl ($(PERL)); the test suite requires Perl."; \
+ fi; \
+ else \
+ echo "Can't find the GNU Make test suite ($(srcdir)/tests)."; \
+ fi
+
+# --------------- Maintainer's Section
+
+# Note this requires GNU make. Not to worry, since it will only be included
+# in the Makefile if we're in the maintainer's environment.
+#include $(srcdir)/maintMakefile
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
+
+# --------------- DEPENDENCIES
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..c88c465
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,209 @@
+# This is a -*-Makefile-*-, or close enough
+#
+# Copyright (C) 1997-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+AUTOMAKE_OPTIONS = dist-bzip2 silent-rules std-options
+ACLOCAL_AMFLAGS = -I config
+
+MAKE_HOST = @MAKE_HOST@
+
+# Only process if target is MS-Windows
+if WINDOWSENV
+ MAYBE_W32 = w32
+ W32INC = -I $(top_srcdir)/w32/include
+ W32LIB = -Lw32 -lw32
+ ossrc =
+else
+ ossrc = posixos.c
+endif
+
+SUBDIRS = glob config po doc $(MAYBE_W32)
+
+bin_PROGRAMS = make
+include_HEADERS = gnumake.h
+
+if USE_CUSTOMS
+ remote = remote-cstms.c
+else
+ remote = remote-stub.c
+endif
+
+make_SOURCES = ar.c arscan.c commands.c default.c dir.c expand.c file.c \
+ function.c getopt.c getopt1.c guile.c implicit.c job.c load.c \
+ loadapi.c main.c misc.c $(ossrc) output.c read.c remake.c \
+ rule.c signame.c strcache.c variable.c version.c vpath.c \
+ hash.c $(remote)
+
+EXTRA_make_SOURCES = vmsjobs.c remote-stub.c remote-cstms.c
+
+noinst_HEADERS = commands.h dep.h filedef.h job.h makeint.h rule.h variable.h \
+ debug.h getopt.h gettext.h hash.h output.h os.h
+
+make_LDADD = @LIBOBJS@ @ALLOCA@ $(GLOBLIB) @GETLOADAVG_LIBS@ @LIBINTL@ \
+ $(GUILE_LIBS)
+# Only process if target is MS-Windows
+if WINDOWSENV
+ make_LDADD += $(W32LIB)
+endif
+
+man_MANS = make.1
+
+DEFS = -DLOCALEDIR=\"$(localedir)\" -DLIBDIR=\"$(libdir)\" -DINCLUDEDIR=\"$(includedir)\" @DEFS@
+
+AM_CPPFLAGS = $(GLOBINC)
+AM_CFLAGS = $(GUILE_CFLAGS)
+# Only process if target is MS-Windows
+if WINDOWSENV
+ AM_CPPFLAGS += $(W32INC)
+endif
+
+
+# Extra stuff to include in the distribution.
+
+EXTRA_DIST = ChangeLog README build.sh.in $(man_MANS) \
+ README.customs README.OS2 \
+ SCOPTIONS SMakefile \
+ README.Amiga Makefile.ami config.ami make.lnk amiga.c amiga.h \
+ README.DOS Makefile.DOS configure.bat dosbuild.bat configh.dos\
+ README.W32 NMakefile config.h.W32 build_w32.bat subproc.bat \
+ make_msvc_net2003.sln make_msvc_net2003.vcproj \
+ README.VMS makefile.vms makefile.com config.h-vms \
+ vmsdir.h vmsfunctions.c vmsify.c vms_exit.c vms_progname.c \
+ vms_export_symbol.c vms_export_symbol_test.com \
+ gmk-default.scm gmk-default.h
+
+# This is built during configure, but behind configure's back
+
+DISTCLEANFILES = build.sh
+
+# --------------- Internationalization Section
+
+localedir = $(datadir)/locale
+
+# --------------- Local INSTALL Section
+
+# If necessary, change the gid of the app and turn on the setgid flag.
+#
+
+# Whether or not make needs to be installed setgid.
+# The value should be either 'true' or 'false'.
+# On many systems, the getloadavg function (used to implement the '-l'
+# switch) will not work unless make is installed setgid kmem.
+#
+inst_setgid = @NEED_SETGID@
+
+# Install make setgid to this group so it can get the load average.
+#
+inst_group = @KMEM_GROUP@
+
+install-exec-local:
+ @if $(inst_setgid); then \
+ app=$(DESTDIR)$(bindir)/`echo $(bin_PROGRAMS)|sed '$(transform)'`; \
+ if chgrp $(inst_group) $$app && chmod g+s $$app; then \
+ echo "chgrp $(inst_group) $$app && chmod g+s $$app"; \
+ else \
+ echo "$$app needs to be owned by group $(inst_group) and setgid;"; \
+ echo "otherwise the '-l' option will probably not work."; \
+ echo "You may need special privileges to complete the installation"; \
+ echo "of $$app."; \
+ fi; \
+ else true; fi
+
+# --------------- Generate the Guile default module content
+
+guile.$(OBJEXT): gmk-default.h
+gmk-default.h: $(srcdir)/gmk-default.scm
+ (echo 'static const char *const GUILE_module_defn = " '\\ \
+ && sed -e 's/;.*//' -e '/^[ \t]*$$/d' -e 's/"/\\"/g' -e 's/$$/ \\/' \
+ $(srcdir)/gmk-default.scm \
+ && echo '";') > $@
+
+# --------------- Local DIST Section
+
+# Install the w32 and tests subdirectories
+#
+dist-hook:
+ (cd $(srcdir); \
+ sub=`find w32 tests -follow \( -name .git -o -name .deps -o -name work -o -name .gitignore -o -name \*.orig -o -name \*.rej -o -name \*~ -o -name Makefile \) -prune -o -type f -print`; \
+ tar chf - $$sub) \
+ | (cd $(distdir); tar xfBp -)
+
+
+# --------------- Local CHECK Section
+
+check-local: check-regression check-loadavg
+ @banner=" Regression PASSED: GNU Make $(VERSION) ($(MAKE_HOST)) built with $(CC) "; \
+ dashes=`echo "$$banner" | sed s/./=/g`; \
+ echo; \
+ echo "$$dashes"; \
+ echo "$$banner"; \
+ echo "$$dashes"; \
+ echo
+
+.PHONY: check-loadavg check-regression
+
+check-loadavg: loadavg$(EXEEXT)
+ @echo The system uptime program believes the load average to be:
+ -uptime
+ @echo The GNU load average checking code thinks:
+ -./loadavg$(EXEEXT)
+
+# The loadavg function is invoked during "make check" to test getloadavg.
+check_PROGRAMS = loadavg
+nodist_loadavg_SOURCES = getloadavg.c
+loadavg_CPPFLAGS = -DTEST
+loadavg_LDADD = @GETLOADAVG_LIBS@
+
+# > check-regression
+#
+# Look for the make test suite, and run it if found and we can find perl.
+# If we're building outside the tree, we use symlinks to make a local copy of
+# the test suite. Unfortunately the test suite itself isn't localizable yet.
+#
+MAKETESTFLAGS =
+
+check-regression: tests/config-flags.pm
+ @if test -f '$(srcdir)/tests/run_make_tests'; then \
+ ulimit -n 128; \
+ if $(PERL) -v >/dev/null 2>&1; then \
+ case `cd '$(srcdir)'; pwd` in `pwd`) : ;; \
+ *) test -d tests || mkdir tests; \
+ rm -f srctests; \
+ if ln -s '$(srcdir)/tests' srctests; then \
+ for f in run_make_tests run_make_tests.pl test_driver.pl scripts; do \
+ rm -f tests/$$f; ln -s ../srctests/$$f tests; \
+ done; fi ;; \
+ esac; \
+ echo "cd tests && $(PERL) ./run_make_tests.pl -srcdir $(abs_srcdir) -make ../make$(EXEEXT) $(MAKETESTFLAGS)"; \
+ cd tests && $(PERL) ./run_make_tests.pl -srcdir '$(abs_srcdir)' -make '../make$(EXEEXT)' $(MAKETESTFLAGS); \
+ else \
+ echo "Can't find a working Perl ($(PERL)); the test suite requires Perl."; \
+ fi; \
+ else \
+ echo "Can't find the GNU Make test suite ($(srcdir)/tests)."; \
+ fi
+
+
+# --------------- Maintainer's Section
+
+# Tell automake that I haven't forgotten about this file and it will be
+# created before we build a distribution (see maintMakefile in the Git
+# distribution).
+
+README:
+
+@MAINT_MAKEFILE@
diff --git a/Makefile.ami b/Makefile.ami
new file mode 100644
index 0000000..39a9788
--- /dev/null
+++ b/Makefile.ami
@@ -0,0 +1,308 @@
+# -*-Makefile-*- for GNU make on Amiga
+#
+# NOTE: If you have no 'make' program at all to process this makefile, run
+# 'build.sh' instead.
+#
+# Copyright (C) 1995-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+#
+# Makefile for GNU Make
+#
+
+CC = sc
+RM = delete
+
+CFLAGS =
+CPPFLAGS =
+LDFLAGS =
+
+# Define these for your system as follows:
+# -DNO_ARCHIVES To disable 'ar' archive support.
+# -DNO_FLOAT To avoid using floating-point numbers.
+# -DENUM_BITFIELDS If the compiler isn't GCC but groks enum foo:2.
+# Some compilers apparently accept this
+# without complaint but produce losing code,
+# so beware.
+# NeXT 1.0a uses an old version of GCC, which required -D__inline=inline.
+# See also 'config.h'.
+defines =
+
+# Which flavor of remote job execution support to use.
+# The code is found in 'remote-$(REMOTE).c'.
+REMOTE = stub
+
+# If you are using the GNU C library, or have the GNU getopt functions in
+# your C library, you can comment these out.
+GETOPT = getopt.o getopt1.o
+GETOPT_SRC = $(srcdir)getopt.c $(srcdir)getopt1.c $(srcdir)getopt.h
+
+# If you are using the GNU C library, or have the GNU glob functions in
+# your C library, you can comment this out. GNU make uses special hooks
+# into the glob functions to be more efficient (by using make's directory
+# cache for globbing), so you must use the GNU functions even if your
+# system's C library has the 1003.2 glob functions already. Also, the glob
+# functions in the AIX and HPUX C libraries are said to be buggy.
+GLOB = glob/glob.lib
+
+# If your system doesn't have alloca, or the one provided is bad, define this.
+ALLOCA = alloca.o
+ALLOCA_SRC = $(srcdir)alloca.c
+
+# If your system needs extra libraries loaded in, define them here.
+# System V probably need -lPW for alloca. HP-UX 7.0's alloca in
+# libPW.a is broken on HP9000s300 and HP9000s400 machines. Use
+# alloca.c instead on those machines.
+LOADLIBES =
+
+# Any extra object files your system needs.
+extras = amiga.o
+
+# Common prefix for machine-independent installed files.
+prefix =
+# Common prefix for machine-dependent installed files.
+exec_prefix =
+
+# Directory to install 'make' in.
+bindir = sc:c
+# Directory to find libraries in for '-lXXX'.
+libdir = lib:
+# Directory to search by default for included makefiles.
+includedir = include:
+# Directory to install the Info files in.
+infodir = doc:
+# Directory to install the man page in.
+mandir = t:
+# Number to put on the man page filename.
+manext = 1
+# Prefix to put on installed 'make' binary file name.
+binprefix =
+# Prefix to put on installed 'make' man page file name.
+manprefix = $(binprefix)
+
+# Whether or not make needs to be installed setgid.
+# The value should be either 'true' or 'false'.
+# On many systems, the getloadavg function (used to implement the '-l'
+# switch) will not work unless make is installed setgid kmem.
+install_setgid = false
+# Install make setgid to this group so it can read /dev/kmem.
+group = sys
+
+# Program to install 'make'.
+INSTALL_PROGRAM = copy
+# Program to install the man page.
+INSTALL_DATA = copy
+# Generic install program.
+INSTALL = copy
+
+# Program to format Texinfo source into Info files.
+MAKEINFO = makeinfo
+# Program to format Texinfo source into DVI files.
+TEXI2DVI = texi2dvi
+
+# Programs to make tags files.
+ETAGS = etags -w
+CTAGS = ctags -w
+
+#guile = guile.o
+
+objs = commands.o job.o dir.o file.o misc.o main.o read.o remake.o \
+ rule.o implicit.o default.o variable.o expand.o function.o \
+ vpath.o version.o ar.o arscan.o signame.o strcache.o hash.o \
+ remote-$(REMOTE).o $(GETOPT) $(ALLOCA) $(extras) $(guile)
+
+srcs = $(srcdir)commands.c $(srcdir)job.c $(srcdir)dir.c \
+ $(srcdir)file.c $(srcdir)getloadavg.c $(srcdir)misc.c \
+ $(srcdir)main.c $(srcdir)read.c $(srcdir)remake.c \
+ $(srcdir)rule.c $(srcdir)implicit.c $(srcdir)default.c \
+ $(srcdir)variable.c $(srcdir)expand.c $(srcdir)function.c \
+ $(srcdir)vpath.c $(srcdir)version.c $(srcdir)hash.c \
+ $(srcdir)guile.c $(srcdir)remote-$(REMOTE).c \
+ $(srcdir)ar.c $(srcdir)arscan.c $(srcdir)strcache.c \
+ $(srcdir)signame.c $(srcdir)signame.h $(GETOPT_SRC) \
+ $(srcdir)commands.h $(srcdir)dep.h $(srcdir)filedep.h \
+ $(srcdir)job.h $(srcdir)makeint.h $(srcdir)rule.h \
+ $(srcdir)variable.h $(ALLOCA_SRC) $(srcdir)config.h.in
+
+
+.SUFFIXES:
+.SUFFIXES: .o .c .h .ps .dvi .info .texinfo
+
+all: make
+info: make.info
+dvi: make.dvi
+# Some makes apparently use .PHONY as the default goal if it is before 'all'.
+.PHONY: all check info dvi
+
+make.info: make.texinfo
+ $(MAKEINFO) -I$(srcdir) $(srcdir)make.texinfo -o make.info
+
+make.dvi: make.texinfo
+ $(TEXI2DVI) $(srcdir)make.texinfo
+
+make.ps: make.dvi
+ dvi2ps make.dvi > make.ps
+
+make: $(objs) $(GLOB)
+ $(CC) Link $(LDFLAGS) $(objs) Lib $(GLOB) $(LOADLIBES) To make.new
+ -delete make
+ rename make.new make
+
+TMPFILE = t:Make$$
+
+$(GLOB):
+ cd glob @@\
+ $(MAKE) -$(MAKEFLAGS) -f Makefile
+
+# -I. is needed to find config.h in the build directory.
+OUTPUT_OPTION =
+.c.o:
+ $(CC) $(defines) IDir "" IDir glob \
+ $(CPPFLAGS) $(CFLAGS) $< $(OUTPUT_OPTION)
+
+# For some losing Unix makes.
+SHELL = /bin/sh
+#@SET_MAKE@
+
+glob/libglob.a: FORCE config.h
+ cd glob; $(MAKE) libglob.a
+FORCE:
+
+.PHONY: install installdirs
+install: installdirs \
+ $(bindir)$(binprefix)make $(infodir)make.info \
+ $(mandir)$(manprefix)make.$(manext)
+
+installdirs:
+ $(SHELL) ${srcdir}/mkinstalldirs $(bindir) $(infodir) $(mandir)
+
+$(bindir)$(binprefix)make: make
+ $(INSTALL_PROGRAM) make $@.new
+ @if $(install_setgid); then \
+ if chgrp $(group) $@.new && chmod g+s $@.new; then \
+ echo "chgrp $(group) $@.new && chmod g+s $@.new"; \
+ else \
+ echo "$@ needs to be owned by group $(group) and setgid;"; \
+ echo "otherwise the '-l' option will probably not work."; \
+ echo "You may need special privileges to install $@."; \
+ fi; \
+ else true; fi
+# Some systems can't deal with renaming onto a running binary.
+ -$(RM) $@.old
+ -mv $@ $@.old
+ mv $@.new $@
+
+$(infodir)make.info: make.info
+ if [ -r ./make.info ]; then dir=.; else dir=$(srcdir); fi; \
+ for file in $${dir}/make.info*; do \
+ name="`basename $$file`"; \
+ $(INSTALL_DATA) $$file \
+ `echo $@ | sed "s,make.info\$$,$$name,"`; \
+ done
+# Run install-info only if it exists.
+# Use 'if' instead of just prepending '-' to the
+# line so we notice real errors from install-info.
+# We use '$(SHELL) -c' because some shells do not
+# fail gracefully when there is an unknown command.
+ if $(SHELL) -c 'install-info --version' >/dev/null 2>&1; then \
+ if [ -r ./make.info ]; then dir=.; else dir=$(srcdir); fi; \
+ install-info --infodir=$(infodir) $$dir/make.info; \
+ else true; fi
+
+$(mandir)$(manprefix)make.$(manext): make.man
+ $(INSTALL_DATA) $(srcdir)make.man $@
+
+
+loadavg: loadavg.c config.h
+ $(CC) $(defines) -DTEST -I. -I$(srcdir) $(CFLAGS) $(LDFLAGS) \
+ loadavg.c $(LOADLIBES) -o $@
+# We copy getloadavg.c into a different file rather than compiling it
+# directly because some compilers clobber getloadavg.o in the process.
+loadavg.c: getloadavg.c
+ ln $(srcdir)getloadavg.c loadavg.c || \
+ cp $(srcdir)getloadavg.c loadavg.c
+check-loadavg: loadavg
+ @echo The system uptime program believes the load average to be:
+ -uptime
+ @echo The GNU load average checking code believes:
+ ./loadavg
+check: check-loadavg
+
+
+.PHONY: clean realclean distclean mostlyclean
+clean: glob-clean
+ -$(RM) make loadavg "#?.o" core make.dvi
+
+distclean: clean glob-realclean
+ -$(RM) Makefile config.h config.status build.sh
+ -$(RM) config.log config.cache
+ -$(RM) TAGS tags
+ -$(RM) make.?? make.??s make.log make.toc make.*aux
+ -$(RM) loadavg.c
+
+realclean: distclean
+ -$(RM) make.info*
+mostlyclean: clean
+
+.PHONY: glob-clean glob-realclean
+glob-clean glob-realclean:
+ cd glob @@\
+ $(MAKE) $@
+
+# This tells versions [3.59,3.63) of GNU make not to export all variables.
+.NOEXPORT:
+
+# The automatically generated dependencies below may omit config.h
+# because it is included with '#include <config.h>' rather than
+# '#include "config.h"'. So we add the explicit dependency to make sure.
+$(objs): config.h
+
+# Automatically generated dependencies will be put at the end of the file.
+
+# Automatically generated dependencies.
+commands.o: commands.c makeint.h dep.h filedef.h variable.h job.h \
+ commands.h
+job.o: job.c makeint.h job.h filedef.h commands.h variable.h
+dir.o: dir.c makeint.h
+file.o: file.c makeint.h dep.h filedef.h job.h commands.h variable.h
+misc.o: misc.c makeint.h dep.h
+main.o: main.c makeint.h dep.h filedef.h variable.h job.h commands.h \
+ getopt.h
+guile.o: guile.c makeint.h dep.h debug.h variable.h gmk-default.h
+read.o: read.c makeint.h dep.h filedef.h job.h commands.h variable.h \
+ glob/glob.h
+remake.o: remake.c makeint.h filedef.h job.h commands.h dep.h
+rule.o: rule.c makeint.h dep.h filedef.h job.h commands.h variable.h \
+ rule.h
+implicit.o: implicit.c makeint.h rule.h dep.h filedef.h
+default.o: default.c makeint.h rule.h dep.h filedef.h job.h commands.h \
+ variable.h
+variable.o: variable.c makeint.h dep.h filedef.h job.h commands.h \
+ variable.h
+expand.o: expand.c makeint.h filedef.h job.h commands.h variable.h
+function.o: function.c makeint.h filedef.h variable.h dep.h job.h \
+ commands.h amiga.h
+vpath.o: vpath.c makeint.h filedef.h variable.h
+strcache.o: strcache.c makeint.h hash.h
+version.o: version.c
+ar.o: ar.c makeint.h filedef.h dep.h
+arscan.o: arscan.c makeint.h
+signame.o: signame.c signame.h
+remote-stub.o: remote-stub.c makeint.h filedef.h job.h commands.h
+getopt.o: getopt.c
+getopt1.o : getopt1.c getopt.h
+getloadavg.o: getloadavg.c
+amiga.o: amiga.c makeint.h variable.h amiga.h
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..0b04245
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,1540 @@
+GNU make NEWS -*-indented-text-*-
+ History of user-visible changes.
+ 10 June 2016
+
+See the end of this file for copyrights and conditions.
+
+All changes mentioned here are more fully described in the GNU make
+manual, which is contained in this distribution as the file doc/make.texi.
+See the README file and the GNU make manual for instructions for
+reporting bugs.
+
+Version 4.2.1 (10 Jun 2016)
+
+A complete list of bugs fixed in this version is available here:
+h
+ttp://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=107&set=custom
+
+This release is a bug-fix release.
+
+
+Version 4.2 (22 May 2016)
+
+A complete list of bugs fixed in this version is available here:
+
+http://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=106&set=custom
+
+* New variable: $(.SHELLSTATUS) is set to the exit status of the last != or
+ $(shell ...) function invoked in this instance of make. This will be "0" if
+ successful or not "0" if not successful. The variable value is unset if no
+ != or $(shell ...) function has been invoked.
+
+* The $(file ...) function can now read from a file with $(file <FILE).
+ The function is expanded to the contents of the file. The contents are
+ expanded verbatim except that the final newline, if any, is stripped.
+
+* The makefile line numbers shown by GNU make now point directly to the
+ specific line in the recipe where the failure or warning occurred.
+ Sample changes suggested by Brian Vandenberg <phantall@gmail.com>
+
+* The interface to GNU make's "jobserver" is stable as documented in the
+ manual, for tools which may want to access it.
+
+ WARNING: Backward-incompatibility! The internal-only command line option
+ --jobserver-fds has been renamed for publishing, to --jobserver-auth.
+
+* The amount of parallelism can be determined by querying MAKEFLAGS, even when
+ the job server is enabled (previously MAKEFLAGS would always contain only
+ "-j", with no number, when job server was enabled).
+
+* VMS-specific changes:
+
+ * Perl test harness now works.
+
+ * Full support for converting Unix exit status codes to VMS exit status
+ codes. BACKWARD INCOMPATIBILITY Notice: On a child failure the VMS exit
+ code is now the encoded Unix exit status that Make usually generates, not
+ the VMS exit status of the child.
+
+
+Version 4.1 (05 Oct 2014)
+
+A complete list of bugs fixed in this version is available here:
+
+http://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=105&set=custom
+
+* New variables: $(MAKE_TERMOUT) and $(MAKE_TERMERR) are set to non-empty
+ values if stdout or stderr, respectively, are believed to be writing to a
+ terminal. These variables are exported by default.
+
+* Allow a no-text-argument form of the $(file ...) function. Without a text
+ argument nothing is written to the file: it is simply opened in the
+ requested mode, then closed again.
+
+* Change the fatal error for mixed explicit and implicit rules, that was
+ introduced in GNU make 3.82, to a non-fatal error. However, this syntax is
+ still deprecated and may return to being illegal in a future version of GNU
+ make. Makefiles that rely on this syntax should be fixed.
+ See https://savannah.gnu.org/bugs/?33034
+
+* VMS-specific changes:
+
+ * Support for library files added, including support for using the GNV ar
+ utility.
+
+ * Partial support for properly encoding Unix exit status codes into VMS exit
+ status codes.
+
+ WARNING: Backward-incompatibility! These are different exit status codes
+ than Make exited with in the past.
+
+ * Macros to hold the current make command are set up to translate the
+ argv[0] string to a VMS format path name and prefix it with "MCR " so that
+ the macro has a space in it.
+
+ WARNING: Backward-incompatibility! This may break complex makefiles that
+ do processing on those macros. This is unlikely because so much in that
+ area was not and is still not currently working on VMS, it is unlikely to
+ find such a complex makefile, so this is more likely to impact
+ construction of a future makefile.
+
+ * A command file is always used to run the commands for a recipe.
+
+ WARNING: Backward-incompatibility! Running the make self tests has
+ exposed that there are significant differences in behavior when running
+ with the command file mode. It is unknown if this will be noticed by most
+ existing VMS makefiles.
+
+Version 4.0 (09 Oct 2013)
+
+A complete list of bugs fixed in this version is available here:
+
+http://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=101&set=custom
+
+* WARNING: Backward-incompatibility!
+ If .POSIX is specified, then make adheres to the POSIX backslash/newline
+ handling requirements, which introduces the following changes to the
+ standard backslash/newline handling in non-recipe lines:
+ * Any trailing space before the backslash is preserved
+ * Each backslash/newline (plus subsequent whitespace) is converted to a
+ single space
+
+* New feature: GNU Guile integration
+ This version of GNU make can be compiled with GNU Guile integration.
+ GNU Guile serves as an embedded extension language for make.
+ See the "Guile Function" section in the GNU Make manual for details.
+ Currently GNU Guile 1.8 and 2.0+ are supported. In Guile 1.8 there is no
+ support for internationalized character sets. In Guile 2.0+, scripts can be
+ encoded in UTF-8.
+
+* New command line option: --output-sync (-O) enables grouping of output by
+ target or by recursive make. This is useful during parallel builds to avoid
+ mixing output from different jobs together giving hard-to-understand
+ results. Original implementation by David Boyce <dsb@boyski.com>.
+ Reworked and enhanced by Frank Heckenbach <f.heckenbach@fh-soft.de>.
+ Windows support by Eli Zaretskii <eliz@gnu.org>.
+
+* New command line option: --trace enables tracing of targets. When enabled
+ the recipe to be invoked is printed even if it would otherwise be suppressed
+ by .SILENT or a "@" prefix character. Also before each recipe is run the
+ makefile name and linenumber where it was defined are shown as well as the
+ prerequisites that caused the target to be considered out of date.
+
+* New command line option argument: --debug now accepts a "n" (none) flag
+ which disables all debugging settings that are currently enabled.
+
+* New feature: The "job server" capability is now supported on Windows.
+ Implementation contributed by Troy Runkel <Troy.Runkel@mathworks.com>
+
+* New feature: The .ONESHELL capability is now supported on Windows. Support
+ added by Eli Zaretskii <eliz@gnu.org>.
+
+* New feature: "!=" shell assignment operator as an alternative to the
+ $(shell ...) function. Implemented for compatibility with BSD makefiles.
+ Note there are subtle differences between "!=" and $(shell ...). See the
+ description in the GNU make manual.
+ WARNING: Backward-incompatibility!
+ Variables ending in "!" previously defined as "variable!= value" will now be
+ interpreted as shell assignment. Change your assignment to add whitespace
+ between the "!" and "=": "variable! = value"
+
+* New feature: "::=" simple assignment operator as defined by POSIX in 2012.
+ This operator has identical functionality to ":=" in GNU make, but will be
+ portable to any implementation of make conforming to a sufficiently new
+ version of POSIX (see http://austingroupbugs.net/view.php?id=330). It is
+ not necessary to define the .POSIX target to access this operator.
+
+* New feature: Loadable objects
+ This version of GNU make contains a "technology preview": the ability to
+ load dynamic objects into the make runtime. These objects can be created by
+ the user and can add extended functionality, usable by makefiles.
+
+* New function: $(file ...) writes to a file.
+
+* New variable: $(GNUMAKEFLAGS) will be parsed for make flags, just like
+ MAKEFLAGS is. It can be set in the environment or the makefile, containing
+ GNU make-specific flags to allow your makefile to be portable to other
+ versions of make. Once this variable is parsed, GNU make will set it to the
+ empty string so that flags will not be duplicated on recursion.
+
+* New variable: `MAKE_HOST' gives the name of the host architecture
+ make was compiled for. This is the same value you see after 'Built for'
+ when running 'make --version'.
+
+* Behavior of MAKEFLAGS and MFLAGS is more rigorously defined. All simple
+ flags are grouped together in the first word of MAKEFLAGS. No options that
+ accept arguments appear in the first word. If no simple flags are present
+ MAKEFLAGS begins with a space. Flags with both short and long versions
+ always use the short versions in MAKEFLAGS. Flags are listed in
+ alphabetical order using ASCII ordering. MFLAGS never begins with "- ".
+
+* Setting the -r and -R options in MAKEFLAGS inside a makefile now works as
+ expected, removing all built-in rules and variables, respectively.
+
+* If a recipe fails, the makefile name and linenumber of the recipe are shown.
+
+* A .RECIPEPREFIX setting is remembered per-recipe and variables expanded
+ in that recipe also use that recipe prefix setting.
+
+* In -p output, .RECIPEPREFIX settings are shown and all target-specific
+ variables are output as if in a makefile, instead of as comments.
+
+* On MS-Windows, recipes that use ".." quoting will no longer force
+ invocation of commands via temporary batch files and stock Windows
+ shells, they will be short-circuited and invoked directly. (In
+ other words, " is no longer a special character for stock Windows
+ shells.) This avoids hitting shell limits for command length when
+ quotes are used, but nothing else in the command requires the shell.
+ This change could potentially mean some minor incompatibilities in
+ behavior when the recipe uses quoted string on shell command lines.
+
+
+Version 3.82 (28 Jul 2010)
+
+A complete list of bugs fixed in this version is available here:
+
+http://sv.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=104&set=custom
+
+* Compiling GNU make now requires a conforming ISO C 1989 compiler and
+ standard runtime library.
+
+* WARNING: Backward-incompatibility!
+ The POSIX standard for make was changed in the 2008 version in a
+ fundamentally incompatible way: make is required to invoke the shell as if
+ the '-e' flag were provided. Because this would break many makefiles that
+ have been written to conform to the original text of the standard, the
+ default behavior of GNU make remains to invoke the shell with simply '-c'.
+ However, any makefile specifying the .POSIX special target will follow the
+ new POSIX standard and pass '-e' to the shell. See also .SHELLFLAGS
+ below.
+
+* WARNING: Backward-incompatibility!
+ The '$?' variable now contains all prerequisites that caused the target to
+ be considered out of date, even if they do not exist (previously only
+ existing targets were provided in $?).
+
+* WARNING: Backward-incompatibility!
+ Wildcards were not documented as returning sorted values, but the results
+ have been sorted up until this release.. If your makefiles require sorted
+ results from wildcard expansions, use the $(sort ...) function to request
+ it explicitly.
+
+* WARNING: Backward-incompatibility!
+ As a result of parser enhancements, three backward-compatibility issues
+ exist: first, a prerequisite containing an "=" cannot be escaped with a
+ backslash any longer. You must create a variable containing an "=" and
+ use that variable in the prerequisite. Second, variable names can no
+ longer contain whitespace, unless you put the whitespace in a variable and
+ use the variable. Third, in previous versions of make it was sometimes
+ not flagged as an error for explicit and pattern targets to appear in the
+ same rule. Now this is always reported as an error.
+
+* WARNING: Backward-incompatibility!
+ The pattern-specific variables and pattern rules are now applied in the
+ shortest stem first order instead of the definition order (variables
+ and rules with the same stem length are still applied in the definition
+ order). This produces the usually-desired behavior where more specific
+ patterns are preferred. To detect this feature search for 'shortest-stem'
+ in the .FEATURES special variable.
+
+* WARNING: Backward-incompatibility!
+ The library search behavior has changed to be compatible with the standard
+ linker behavior. Prior to this version for prerequisites specified using
+ the -lfoo syntax make first searched for libfoo.so in the current
+ directory, vpath directories, and system directories. If that didn't yield
+ a match, make then searched for libfoo.a in these directories. Starting
+ with this version make searches first for libfoo.so and then for libfoo.a
+ in each of these directories in order.
+
+* New command line option: --eval=STRING causes STRING to be evaluated as
+ makefile syntax (akin to using the $(eval ...) function). The evaluation
+ is performed after all default rules and variables are defined, but before
+ any makefiles are read.
+
+* New special variable: .RECIPEPREFIX allows you to reset the recipe
+ introduction character from the default (TAB) to something else. The
+ first character of this variable value is the new recipe introduction
+ character. If the variable is set to the empty string, TAB is used again.
+ It can be set and reset at will; recipes will use the value active when
+ they were first parsed. To detect this feature check the value of
+ $(.RECIPEPREFIX).
+
+* New special variable: .SHELLFLAGS allows you to change the options passed
+ to the shell when it invokes recipes. By default the value will be "-c"
+ (or "-ec" if .POSIX is set).
+
+* New special target: .ONESHELL instructs make to invoke a single instance
+ of the shell and provide it with the entire recipe, regardless of how many
+ lines it contains. As a special feature to allow more straightforward
+ conversion of makefiles to use .ONESHELL, any recipe line control
+ characters ('@', '+', or '-') will be removed from the second and
+ subsequent recipe lines. This happens _only_ if the SHELL value is deemed
+ to be a standard POSIX-style shell. If not, then no interior line control
+ characters are removed (as they may be part of the scripting language used
+ with the alternate SHELL).
+
+* New variable modifier 'private': prefixing a variable assignment with the
+ modifier 'private' suppresses inheritance of that variable by
+ prerequisites. This is most useful for target- and pattern-specific
+ variables.
+
+* New make directive: 'undefine' allows you to undefine a variable so that
+ it appears as if it was never set. Both $(flavor) and $(origin) functions
+ will return 'undefined' for such a variable. To detect this feature search
+ for 'undefine' in the .FEATURES special variable.
+
+* The parser for variable assignments has been enhanced to allow multiple
+ modifiers ('export', 'override', 'private') on the same line as variables,
+ including define/endef variables, and in any order. Also, it is possible
+ to create variables and targets named as these modifiers.
+
+* The 'define' make directive now allows a variable assignment operator
+ after the variable name, to allow for simple, conditional, or appending
+ multi-line variable assignment.
+
+* VMS-specific changes:
+
+ * Michael Gehre (at VISTEC-SEMI dot COM) supplied a fix for a problem with
+ timestamps of object modules in OLBs. The timestamps were not correctly
+ adjusted to GMT based time, if the local VMS time was using a daylight
+ saving algorithm and if daylight saving was switched off.
+
+ * John Eisenbraun (at HP dot COM) supplied fixes and and an enhancement to
+ append output redirection in action lines.
+
+ * Rework of ctrl+c and ctrl+y handling.
+
+ * Fix a problem with cached strings, which showed on case-insensitive file
+ systems.
+
+ * Build fixes for const-ified code in VMS specific sources.
+
+ * A note on appending the redirected output. With this change, a simple
+ mechanism is implemented to make ">>" work in action lines. In VMS
+ there is no simple feature like ">>" to have DCL command or program
+ output redirected and appended to a file. GNU make for VMS already
+ implements the redirection of output. If such a redirection is detected,
+ an ">" on the action line, GNU make creates a DCL command procedure to
+ execute the action and to redirect its output. Based on that, now ">>"
+ is also recognized and a similar but different command procedure is
+ created to implement the append. The main idea here is to create a
+ temporary file which collects the output and which is appended to the
+ wanted output file. Then the temporary file is deleted. This is all done
+ in the command procedure to keep changes in make small and simple. This
+ obviously has some limitations but it seems good enough compared with
+ the current ">" implementation. (And in my opinion, redirection is not
+ really what GNU make has to do.) With this approach, it may happen that
+ the temporary file is not yet appended and is left in SYS$SCRATCH.
+ The temporary file names look like "CMDxxxxx.". Any time the created
+ command procedure can not complete, this happens. Pressing Ctrl+Y to
+ abort make is one case. In case of Ctrl+Y the associated command
+ procedure is left in SYS$SCRATCH as well. Its name is CMDxxxxx.COM.
+
+ * Change in the Ctrl+Y handling. The CtrlY handler now uses $delprc to
+ delete all children. This way also actions with DCL commands will be
+ stopped. As before the CtrlY handler then sends SIGQUIT to itself,
+ which is handled in common code.
+
+ * Change in deleteing temporary command files. Temporary command files
+ are now deleted in the vms child termination handler. That deletes
+ them even if a Ctrl+C was pressed.
+
+ * The behavior of pressing Ctrl+C is not changed. It still has only an
+ effect, after the current action is terminated. If that doesn't happen
+ or takes too long, Ctrl+Y should be used instead.
+
+
+Version 3.81 (01 Apr 2006)
+
+* GNU make is ported to OS/2.
+
+* GNU make is ported to MinGW. The MinGW build is only supported by
+ the build_w32.bat batch file; see the file README.W32 for more
+ details.
+
+* WARNING: Future backward-incompatibility!
+ Up to and including this release, the '$?' variable does not contain
+ any prerequisite that does not exist, even though that prerequisite
+ might have caused the target to rebuild. Starting with the _next_
+ release of GNU make, '$?' will contain all prerequisites that caused
+ the target to be considered out of date.
+ See http://savannah.gnu.org/bugs/?16051
+
+* WARNING: Backward-incompatibility!
+ GNU make now implements a generic "second expansion" feature on the
+ prerequisites of both explicit and implicit (pattern) rules. In order
+ to enable this feature, the special target '.SECONDEXPANSION' must be
+ defined before the first target which takes advantage of it. If this
+ feature is enabled then after all rules have been parsed the
+ prerequisites are expanded again, this time with all the automatic
+ variables in scope. This means that in addition to using standard
+ SysV $$@ in prerequisites lists, you can also use complex functions
+ such as $$(notdir $$@) etc. This behavior applies to implicit rules,
+ as well, where the second expansion occurs when the rule is matched.
+ However, this means that when '.SECONDEXPANSION' is enabled you must
+ double-quote any "$" in your filenames; instead of "foo: boo$$bar" you
+ now must write "foo: foo$$$$bar". Note that the SysV $$@ etc. feature,
+ which used to be available by default, is now ONLY available when the
+ .SECONDEXPANSION target is defined. If your makefiles take advantage
+ of this SysV feature you will need to update them.
+
+* WARNING: Backward-incompatibility!
+ In order to comply with POSIX, the way in which GNU make processes
+ backslash-newline sequences in recipes has changed. If your makefiles
+ use backslash-newline sequences inside of single-quoted strings in
+ recipes you will be impacted by this change. See the GNU make manual
+ subsection "Splitting Recipe Lines" (node "Splitting Lines"), in
+ section "Recipe Syntax", chapter "Writing Recipe in Rules", for
+ details.
+
+* WARNING: Backward-incompatibility!
+ Some previous versions of GNU make had a bug where "#" in a function
+ invocation such as $(shell ...) was treated as a make comment. A
+ workaround was to escape these with backslashes. This bug has been
+ fixed: if your makefile uses "\#" in a function invocation the
+ backslash is now preserved, so you'll need to remove it.
+
+* New command line option: -L (--check-symlink-times). On systems that
+ support symbolic links, if this option is given then GNU make will
+ use the most recent modification time of any symbolic links that are
+ used to resolve target files. The default behavior remains as it
+ always has: use the modification time of the actual target file only.
+
+* The "else" conditional line can now be followed by any other valid
+ conditional on the same line: this does not increase the depth of the
+ conditional nesting, so only one "endif" is required to close the
+ conditional.
+
+* All pattern-specific variables that match a given target are now used
+ (previously only the first match was used).
+
+* Target-specific variables can be marked as exportable using the
+ "export" keyword.
+
+* In a recursive $(call ...) context, any extra arguments from the outer
+ call are now masked in the context of the inner call.
+
+* Implemented a solution for the "thundering herd" problem with "-j -l".
+ This version of GNU make uses an algorithm suggested by Thomas Riedl
+ <thomas.riedl@siemens.com> to track the number of jobs started in the
+ last second and artificially adjust GNU make's view of the system's
+ load average accordingly.
+
+* New special variables available in this release:
+ - .INCLUDE_DIRS: Expands to a list of directories that make searches
+ for included makefiles.
+ - .FEATURES: Contains a list of special features available in this
+ version of GNU make.
+ - .DEFAULT_GOAL: Set the name of the default goal make will
+ use if no goals are provided on the command line.
+ - MAKE_RESTARTS: If set, then this is the number of times this
+ instance of make has been restarted (see "How Makefiles Are Remade"
+ in the manual).
+ - New automatic variable: $| (added in 3.80, actually): contains all
+ the order-only prerequisites defined for the target.
+
+* New functions available in this release:
+ - $(lastword ...) returns the last word in the list. This gives
+ identical results as $(word $(words ...) ...), but is much faster.
+ - $(abspath ...) returns the absolute path (all "." and ".."
+ directories resolved, and any duplicate "/" characters removed) for
+ each path provided.
+ - $(realpath ...) returns the canonical pathname for each path
+ provided. The canonical pathname is the absolute pathname, with
+ all symbolic links resolved as well.
+ - $(info ...) prints its arguments to stdout. No makefile name or
+ line number info, etc. is printed.
+ - $(flavor ...) returns the flavor of a variable.
+ - $(or ...) provides a short-circuiting OR conditional: each argument
+ is expanded. The first true (non-empty) argument is returned; no
+ further arguments are expanded. Expands to empty if there are no
+ true arguments.
+ - $(and ...) provides a short-circuiting AND conditional: each
+ argument is expanded. The first false (empty) argument is
+ returned; no further arguments are expanded. Expands to the last
+ argument if all arguments are true.
+
+* Changes made for POSIX compatibility:
+ - Only touch targets (under -t) if they have a recipe.
+ - Setting the SHELL make variable does NOT change the value of the
+ SHELL environment variable given to programs invoked by make. As
+ an enhancement to POSIX, if you export the make variable SHELL then
+ it will be set in the environment, just as before.
+
+* On MS Windows systems, explicitly setting SHELL to a pathname ending
+ in "cmd" or "cmd.exe" (case-insensitive) will force GNU make to use
+ the DOS command interpreter in batch mode even if a UNIX-like shell
+ could be found on the system.
+
+* On VMS there is now support for case-sensitive filesystems such as ODS5.
+ See the README.VMS file for information.
+
+* Parallel builds (-jN) no longer require a working Bourne shell on
+ Windows platforms. They work even with the stock Windows shells, such
+ as cmd.exe and command.com.
+
+* Updated to autoconf 2.59, automake 1.9.5, and gettext 0.14.1. Users
+ should not be impacted.
+
+* New translations for Swedish, Chinese (simplified), Ukrainian,
+ Belarusian, Finnish, Kinyarwandan, and Irish. Many updated
+ translations.
+
+A complete list of bugs fixed in this version is available here:
+
+ http://savannah.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=103
+
+
+Version 3.80 (03 Oct 2002)
+
+* A new feature exists: order-only prerequisites. These prerequisites
+ affect the order in which targets are built, but they do not impact
+ the rebuild/no-rebuild decision of their dependents. That is to say,
+ they allow you to require target B be built before target A, without
+ requiring that target A will always be rebuilt if target B is updated.
+ Patch for this feature provided by Greg McGary <greg@mcgary.org>.
+
+* For compatibility with SysV make, GNU make now supports the peculiar
+ syntax $$@, $$(@D), and $$(@F) in the prerequisites list of a rule.
+ This syntax is only valid within explicit and static pattern rules: it
+ cannot be used in implicit (suffix or pattern) rules. Edouard G. Parmelan
+ <egp@free.fr> provided a patch implementing this feature; however, I
+ decided to implement it in a different way.
+
+* The argument to the "ifdef" conditional is now expanded before it's
+ tested, so it can be a constructed variable name.
+
+ Similarly, the arguments to "export" (when not used in a variable
+ definition context) and "unexport" are also now expanded.
+
+* A new function is defined: $(value ...). The argument to this
+ function is the _name_ of a variable. The result of the function is
+ the value of the variable, without having been expanded.
+
+* A new function is defined: $(eval ...). The arguments to this
+ function should expand to makefile commands, which will then be
+ evaluated as if they had appeared in the makefile. In combination
+ with define/endef multiline variable definitions this is an extremely
+ powerful capability. The $(value ...) function is also sometimes
+ useful here.
+
+* A new built-in variable is defined, $(MAKEFILE_LIST). It contains a
+ list of each makefile GNU make has read, or started to read, in the
+ order in which they were encountered. So, the last filename in the
+ list when a makefile is just being read (before any includes) is the
+ name of the current makefile.
+
+* A new built-in variable is defined: $(.VARIABLES). When it is
+ expanded it returns a complete list of variable names defined by all
+ makefiles at that moment.
+
+* A new command line option is defined, -B or --always-make. If
+ specified GNU make will consider all targets out-of-date even if they
+ would otherwise not be.
+
+* The arguments to $(call ...) functions were being stored in $1, $2,
+ etc. as recursive variables, even though they are fully expanded
+ before assignment. This means that escaped dollar signs ($$ etc.)
+ were not behaving properly. Now the arguments are stored as simple
+ variables. This may mean that if you added extra escaping to your
+ $(call ...) function arguments you will need to undo it now.
+
+* The variable invoked by $(call ...) can now be recursive: unlike other
+ variables it can reference itself and this will not produce an error
+ when it is used as the first argument to $(call ...) (but only then).
+
+* New pseudo-target .LOW_RESOLUTION_TIME, superseding the configure
+ option --disable-nsec-timestamps. You might need this if your build
+ process depends on tools like "cp -p" preserving time stamps, since
+ "cp -p" (right now) doesn't preserve the subsecond portion of a time
+ stamp.
+
+* Updated translations for French, Galician, German, Japanese, Korean,
+ and Russian. New translations for Croatian, Danish, Hebrew, and
+ Turkish.
+
+* Updated internationalization support to Gettext 0.11.5.
+ GNU make now uses Gettext's "external" feature, and does not include
+ any internationalization code itself. Configure will search your
+ system for an existing implementation of GNU Gettext (only GNU Gettext
+ is acceptable) and use it if it exists. If not, NLS will be disabled.
+ See ABOUT-NLS for more information.
+
+* Updated to autoconf 2.54 and automake 1.7. Users should not be impacted.
+
+* VMS-specific changes:
+
+ * In default.c define variable ARCH as IA64 for VMS on Itanium systems.
+
+ * In makefile.vms avoid name collision for glob and globfree.
+
+ * This is the VMS port of GNU Make done by Hartmut.Becker@compaq.com.
+
+ It is based on the specific version 3.77k and on 3.78.1. 3.77k was done
+ by Klaus Kämpf <kkaempf@rmi.de>, the code was based on the VMS port of
+ GNU Make 3.60 by Mike Moretti.
+
+ It was ported on OpenVMS/Alpha V7.1, DECC V5.7-006. It was re-build and
+ tested on OpenVMS/Alpha V7.2, OpenVMS/VAX 7.1 and 5.5-2. Different
+ versions of DECC were used. VAXC was tried: it fails; but it doesn't
+ seem worth to get it working. There are still some PTRMISMATCH warnings
+ during the compile. Although perl is working on VMS the test scripts
+ don't work. The function $shell is still missing.
+
+ There is a known bug in some of the VMS CRTLs. It is in the shipped
+ versions of VMS V7.2 and V7.2-1 and in the currently (October 1999)
+ available ECOs for VMS V7.1 and newer versions. It is fixed in versions
+ shipped with newer VMS versions and all ECO kits after October 1999. It
+ only shows up during the daylight saving time period (DST): stat()
+ returns a modification time 1 hour ahead. This results in GNU make
+ warning messages. For a just created source you will see:
+
+ $ gmake x.exe
+ gmake.exe;1: *** Warning: File 'x.c' has modification time in the future
+ (940582863 > 940579269)
+ cc /obj=x.obj x.c
+ link x.obj /exe=x.exe
+ gmake.exe;1: *** Warning: Clock skew detected. Your build may be
+ incomplete.
+
+
+A complete list of bugs fixed in this version is available here:
+
+ http://savannah.gnu.org/bugs/index.php?group=make&report_id=111&fix_release_id=102
+
+
+Version 3.79.1 (23 Jun 2000)
+
+* .SECONDARY with no prerequisites now prevents any target from being
+ removed because make thinks it's an intermediate file, not just those
+ listed in the makefile.
+
+* New configure option --disable-nsec-timestamps, but this was
+ superseded in later versions by the .LOW_RESOLUTION_TIME pseudo-target.
+
+Version 3.79 (04 Apr 2000)
+
+* GNU make optionally supports internationalization and locales via the
+ GNU gettext (or local gettext if suitable) package. See the ABOUT-NLS
+ file for more information on configuring GNU make for NLS.
+
+* Previously, GNU make quoted variables such as MAKEFLAGS and
+ MAKEOVERRIDES for proper parsing by the shell. This allowed them to
+ be used within make build scripts. However, using them there is not
+ proper behavior: they are meant to be passed to subshells via the
+ environment. Unfortunately the values were not quoted properly to be
+ passed through the environment. This meant that make didn't properly
+ pass some types of command line values to submakes.
+
+ With this version we change that behavior: now these variables are
+ quoted properly for passing through the environment, which is the
+ correct way to do it. If you previously used these variables
+ explicitly within a make rule you may need to re-examine your use for
+ correctness given this change.
+
+* A new pseudo-target .NOTPARALLEL is available. If defined, the
+ current makefile is run serially regardless of the value of -j.
+ However, submakes are still eligible for parallel execution.
+
+* The --debug option has changed: it now allows optional flags
+ controlling the amount and type of debugging output. By default only
+ a minimal amount information is generated, displaying the names of
+ "normal" targets (not makefiles) that were deemed out of date and in
+ need of being rebuilt.
+
+ Note that the -d option behaves as before: it takes no arguments and
+ all debugging information is generated.
+
+* The `-p' (print database) output now includes filename and linenumber
+ information for variable definitions, to aid debugging.
+
+* The wordlist function no longer reverses its arguments if the "start"
+ value is greater than the "end" value. If that's true, nothing is
+ returned.
+
+* Hartmut Becker provided many updates for the VMS port of GNU make.
+ See the README.VMS file for more details.
+
+* VMS-specific changes:
+
+ * Fix a problem with automatically remaking makefiles. GNU make uses an
+ execve to restart itself after a successful remake of the makefile. On
+ UNIX systems execve replaces the running program with a new one and
+ resets all signal handling to the default. On VMS execve creates a child
+ process, signal and exit handlers of the parent are still active, and,
+ unfortunately, corrupt the exit code from the child. Fix in job.c:
+ ignore SIGCHLD.
+
+ * Added some switches to reflect latest features of DECC. Modifications in
+ makefile.vms.
+
+ * Set some definitions to reflect latest features of DECC. Modifications in
+ config.h-vms (which is copied to config.h).
+
+ * Added extern strcmpi declaration to avoid 'implicitly declared' messages.
+ Modification in make.h.
+
+ * Default rule for C++, conditionals for gcc (GCC_IS_NATIVE) or DEC/Digital/
+ Compaq c/c++ compilers. Modifications in default.c.
+
+ * Usage of opendir() and friends, suppress file version. Modifications in
+ dir.c.
+
+ * Added VMS specific code to handle ctrl+c and ctrl+y to abort make.
+ Modifications in job.c.
+
+ * Added support to have case sensitive targets and dependencies but to
+ still use case blind file names. This is especially useful for Java
+ makefiles on VMS:
+
+ .SUFFIXES :
+ .SUFFIXES : .class .java
+ .java.class :
+ javac "$<
+ HelloWorld.class : HelloWorld.java
+
+ * A new macro WANT_CASE_SENSITIVE_TARGETS in config.h-vms was introduced.
+ It needs to be enabled to get this feature; default is disabled. The
+ macro HAVE_CASE_INSENSITIVE_FS must not be touched: it is still enabled.
+ Modifications in file.c and config.h-vms.
+
+ * Bootstrap make to start building make is still makefile.com, but make
+ needs to be re-made with a make to make a correct version: ignore all
+ possible warnings, delete all objects, rename make.exe to a different
+ name and run it.
+
+ * Made some minor modifications to the bootstrap build makefile.com.
+
+Version 3.78 (22 Sep 1999)
+
+* Two new functions, $(error ...) and $(warning ...) are available. The
+ former will cause make to fail and exit immediately upon expansion of
+ the function, with the text provided as the error message. The latter
+ causes the text provided to be printed as a warning message, but make
+ proceeds normally.
+
+* A new function $(call ...) is available. This allows users to create
+ their own parameterized macros and invoke them later. Original
+ implementation of this function was provided by Han-Wen Nienhuys
+ <hanwen@cs.uu.nl>.
+
+* A new function $(if ...) is available. It provides if-then-else
+ capabilities in a builtin function. Original implementation of this
+ function was provided by Han-Wen Nienhuys <hanwen@cs.uu.nl>.
+
+* Make defines a new variable, .LIBPATTERNS. This variable controls how
+ library dependency expansion (dependencies like ``-lfoo'') is performed.
+
+* Make accepts CRLF sequences as well as traditional LF, for
+ compatibility with makefiles created on other operating systems.
+
+* Make accepts a new option: -R, or --no-builtin-variables. This option
+ disables the definition of the rule-specific builtin variables (CC,
+ LD, AR, etc.). Specifying this option forces -r (--no-builtin-rules)
+ as well.
+
+* A "job server" feature, suggested by Howard Chu <hyc@highlandsun.com>.
+
+ On systems that support POSIX pipe(2) semantics, GNU make can now pass
+ -jN options to submakes rather than forcing them all to use -j1. The
+ top make and all its sub-make processes use a pipe to communicate with
+ each other to ensure that no more than N jobs are started across all
+ makes. To get the old behavior of -j back, you can configure make
+ with the --disable-job-server option.
+
+* The confusing term "dependency" has been replaced by the more accurate
+ and standard term "prerequisite", both in the manual and in all GNU make
+ output.
+
+* GNU make supports the "big archive" library format introduced in AIX 4.3.
+
+* GNU make supports large files on AIX, HP-UX, and IRIX. These changes
+ were provided by Paul Eggert <eggert@twinsun.com>. (Large file
+ support for Solaris and Linux was introduced in 3.77, but the
+ configuration had issues: these have also been resolved).
+
+* The Windows 95/98/NT (W32) version of GNU make now has native support
+ for the Cygnus Cygwin release B20.1 shell (bash).
+
+* The GNU make regression test suite, long available separately "under
+ the table", has been integrated into the release. You can invoke it
+ by running "make check" in the distribution. Note that it requires
+ Perl (either Perl 4 or Perl 5) to run.
+
+Version 3.77 (28 Jul 1998)
+
+* Implement BSD make's "?=" variable assignment operator. The variable
+ is assigned the specified value only if that variable is not already
+ defined.
+
+* Make defines a new variable, "CURDIR", to contain the current working
+ directory (after the -C option, if any, has been processed).
+ Modifying this variable has no effect on the operation of make.
+
+* Make defines a new default RCS rule, for new-style master file
+ storage: ``% :: RCS/%'' (note no ``,v'' suffix).
+
+ Make defines new default rules for DOS-style C++ file naming
+ conventions, with ``.cpp'' suffixes. All the same rules as for
+ ``.cc'' and ``.C'' suffixes are provided, along with LINK.cpp and
+ COMPILE.cpp macros (which default to the same value as LINK.cc and
+ COMPILE.cc). Note CPPFLAGS is still C preprocessor flags! You should
+ use CXXFLAGS to change C++ compiler flags.
+
+* A new feature, "target-specific variable values", has been added.
+ This is a large change so please see the appropriate sections of the
+ manual for full details. Briefly, syntax like this:
+
+ TARGET: VARIABLE = VALUE
+
+ defines VARIABLE as VALUE within the context of TARGET. This is
+ similar to SunOS make's "TARGET := VARIABLE = VALUE" feature. Note
+ that the assignment may be of any type, not just recursive, and that
+ the override keyword is available.
+
+ COMPATIBILITY: This new syntax means that if you have any rules where
+ the first or second dependency has an equal sign (=) in its name,
+ you'll have to escape them with a backslash: "foo : bar\=baz".
+ Further, if you have any dependencies which already contain "\=",
+ you'll have to escape both of them: "foo : bar\\\=baz".
+
+* A new appendix listing the most common error and warning messages
+ generated by GNU make, with some explanation, has been added to the
+ GNU make User's Manual.
+
+* Updates to the GNU make Customs library support (see README.customs).
+
+* Updates to the Windows 95/NT port from Rob Tulloh (see README.W32),
+ and to the DOS port from Eli Zaretski (see README.DOS).
+
+* VMS-specific changes:
+
+ * This is the VMS port of GNU Make.
+ It is based on the VMS port of GNU Make 3.60 by Mike Moretti.
+ This port was done by Klaus Kämpf <kkaempf@rmi.de>
+
+ * There is first-level support available from proGIS Software, Germany.
+ Visit their web-site at http://www.progis.de to get information
+ about other vms software and forthcoming updates to gnu make.
+
+ * /bin/sh style I/O redirection is supported. You can now write lines like
+ mcr sys$disk:[]program.exe < input.txt > output.txt &> error.txt
+
+ * Makefile variables are looked up in the current environment. You can set
+ symbols or logicals in DCL and evaluate them in the Makefile via
+ $(<name-of-symbol-or-logical>). Variables defined in the Makefile
+ override VMS symbols/logicals !
+
+ * Functions for file names are working now. See the GNU Make manual for
+ $(dir ...) and $(wildcard ...). Unix-style and VMS-style names are
+ supported as arguments.
+
+ * The default rules are set up for GNU C. Building an executable from a
+ single source file is as easy as 'make file.exe'.
+
+ * The variable $(ARCH) is predefined as ALPHA or VAX resp. Makefiles for
+ different VMS systems can now be written by checking $(ARCH) as in
+ ifeq ($(ARCH),ALPHA)
+ $(ECHO) "On the Alpha"
+ else
+ $(ECHO) "On the VAX"
+ endif
+
+ * Command lines of excessive length are correctly broken and written to a
+ batch file in sys$scratch for later execution. There's no limit to the
+ lengths of commands (and no need for .opt files :-) any more.
+
+ * Empty commands are handled correctly and don't end in a new DCL process.
+
+Version 3.76.1 (19 Sep 1997)
+
+* Small (but serious) bug fix. Quick rollout to get into the GNU source CD.
+
+Version 3.76 (16 Sep 1997)
+
+* GNU make now uses automake to control Makefile.in generation. This
+ should make it more consistent with the GNU standards.
+
+* VPATH functionality has been changed to incorporate the VPATH+ patch,
+ previously maintained by Paul Smith <psmith@baynetworks.com>. See the
+ manual.
+
+* Make defines a new variable, `MAKECMDGOALS', to contain the goals that
+ were specified on the command line, if any. Modifying this variable
+ has no effect on the operation of make.
+
+* A new function, `$(wordlist S,E,TEXT)', is available: it returns a
+ list of words from number S to number E (inclusive) of TEXT.
+
+* Instead of an error, detection of future modification times gives a
+ warning and continues. The warning is repeated just before GNU make
+ exits, so it is less likely to be lost.
+
+* Fix the $(basename) and $(suffix) functions so they only operate on
+ the last filename, not the entire string:
+
+ Command Old Result New Result
+ ------- ---------- ----------
+ $(basename a.b) a a
+ $(basename a.b/c) a a.b/c
+ $(suffix a.b) b b
+ $(suffix a.b/c) b/c <empty>
+
+* The $(strip) function now removes newlines as well as TABs and spaces.
+
+* The $(shell) function now changes CRLF (\r\n) pairs to a space as well
+ as newlines (\n).
+
+* Updates to the Windows 95/NT port from Rob Tulloh (see README.W32).
+
+* Eli Zaretskii has updated the port to 32-bit protected mode on MSDOS
+ and MS-Windows, building with the DJGPP v2 port of GNU C/C++ compiler
+ and utilities. See README.DOS for details, and direct all questions
+ concerning this port to Eli Zaretskii <eliz@is.elta.co.il> or DJ
+ Delorie <dj@delorie.com>.
+
+* VMS-specific changes:
+
+ * John W. Eaton has updated the VMS port to support libraries and VPATH.
+
+ * The cd command is supported if it's called as $(CD). This invokes
+ the 'builtin_cd' command which changes the directory.
+ Calling 'set def' doesn't do the trick, since a sub-shell is
+ spawned for this command, the directory is changed *in this sub-shell*
+ and the sub-shell ends.
+
+ * Libraries are not supported. They were in GNU Make 3.60 but somehow I
+ didn't care porting the code. If there is enough interest, I'll do it at
+ some later time.
+
+ * The variable $^ separates files with commas instead of spaces (It's the
+ natural thing to do for VMS).
+
+ * See defaults.c for VMS default suffixes and my definitions for default
+ rules and variables.
+
+ * The shell function is not implemented yet.
+
+ * Load average routines haven't been implemented for VMS yet.
+
+ * The default include directory for including other makefiles is
+ SYS$SYSROOT:[SYSLIB] (I don't remember why I didn't just use
+ SYS$LIBRARY: instead; maybe it wouldn't work that way).
+
+ * The default makefiles make looks for are: makefile.vms, gnumakefile,
+ makefile., and gnumakefile. .
+
+ * The stat() function and handling of time stamps in VMS is broken, so I
+ replaced it with a hack in vmsfunctions.c. I will provide a full rewrite
+ somewhere in the future. Be warned, the time resolution inside make is
+ less than what vms provides. This might be a problem on the faster Alphas.
+
+ * You can use a : in a filename only if you precede it with a backslash ('\').
+ E.g.- hobbes\:[bogas.files]
+
+ * Make ignores success, informational, or warning errors (-S-, -I-, or -W-).
+ But it will stop on -E- and -F- errors. (unless you do something
+ to override this in your makefile, or whatever).
+
+ * Remote stuff isn't implemented yet.
+
+ * Multiple line DCL commands, such as "if" statements, must be put inside
+ command files. You can run a command file by using \@.
+
+Version 3.75 (27 Aug 1996)
+
+* The directory messages printed by `-w' and implicitly in sub-makes,
+ are now omitted if Make runs no commands and has no other messages to print.
+
+* Make now detects files that for whatever reason have modification times
+ in the future and gives an error. Files with such impossible timestamps
+ can result from unsynchronized clocks, or archived distributions
+ containing bogus timestamps; they confuse Make's dependency engine
+ thoroughly.
+
+* The new directive `sinclude' is now recognized as another name for
+ `-include', for compatibility with some other Makes.
+
+* Aaron Digulla has contributed a port to AmigaDOS. See README.Amiga for
+ details, and direct all Amiga-related questions to <digulla@fh-konstanz.de>.
+
+* Rob Tulloh of Tivoli Systems has contributed a port to Windows NT or 95.
+ See README.W32 for details, and direct all Windows-related questions to
+ <rob_tulloh@tivoli.com>.
+
+* VMS-specific changes:
+
+ * Lots of default settings are adapted for VMS. See default.c.
+
+ * Long command lines are now converted to command files.
+
+ * Comma (',') as a separator is now allowed. See makefile.vms for an example.
+
+Version 3.73 (05 Apr 1995)
+
+* Converted to use Autoconf version 2, so `configure' has some new options.
+ See INSTALL for details.
+
+* You can now send a SIGUSR1 signal to Make to toggle printing of debugging
+ output enabled by -d, at any time during the run.
+
+Version 3.72 (04 Nov 1994)
+
+* DJ Delorie has ported Make to MS-DOS using the GO32 extender.
+ He is maintaining the DOS port, not the GNU Make maintainer;
+ please direct bugs and questions for DOS to <djgpp@sun.soe.clarkson.edu>.
+ MS-DOS binaries are available for FTP from ftp.simtel.net in
+ /pub/simtelnet/gnu/djgpp/.
+
+* The `MAKEFLAGS' variable (in the environment or in a makefile) can now
+ contain variable definitions itself; these are treated just like
+ command line variable definitions. Make will automatically insert any
+ variable definitions from the environment value of `MAKEFLAGS' or from
+ the command line, into the `MAKEFLAGS' value exported to children. The
+ `MAKEOVERRIDES' variable previously included in the value of `$(MAKE)'
+ for sub-makes is now included in `MAKEFLAGS' instead. As before, you can
+ reset `MAKEOVERRIDES' in your makefile to avoid putting all the variables
+ in the environment when its size is limited.
+
+* If `.DELETE_ON_ERROR' appears as a target, Make will delete the target of
+ a rule if it has changed when its recipe exits with a nonzero status,
+ just as when the recipe gets a signal.
+
+* The automatic variable `$+' is new. It lists all the dependencies like
+ `$^', but preserves duplicates listed in the makefile. This is useful
+ for linking rules, where library files sometimes need to be listed twice
+ in the link order.
+
+* You can now specify the `.IGNORE' and `.SILENT' special targets with
+ dependencies to limit their effects to those files. If a file appears as
+ a dependency of `.IGNORE', then errors will be ignored while running the
+ recipe to update that file. Likewise if a file appears as a dependency
+ of `.SILENT', then the recipe to update that file will not be printed
+ before it is run. (This change was made to conform to POSIX.2.)
+
+Version 3.71 (21 May 1994)
+
+* The automatic variables `$(@D)', `$(%D)', `$(*D)', `$(<D)', `$(?D)', and
+ `$(^D)' now omit the trailing slash from the directory name. (This change
+ was made to comply with POSIX.2.)
+
+* The source distribution now includes the Info files for the Make manual.
+ There is no longer a separate distribution containing Info and DVI files.
+
+* You can now set the variables `binprefix' and/or `manprefix' in
+ Makefile.in (or on the command line when installing) to install GNU make
+ under a name other than `make' (i.e., ``make binprefix=g install''
+ installs GNU make as `gmake').
+
+* The built-in Texinfo rules use the new variables `TEXI2DVI_FLAGS' for
+ flags to the `texi2dvi' script, and `MAKEINFO_FLAGS' for flags to the
+ Makeinfo program.
+
+* The exit status of Make when it runs into errors is now 2 instead of 1.
+ The exit status is 1 only when using -q and some target is not up to date.
+ (This change was made to comply with POSIX.2.)
+
+Version 3.70 (03 Jan 1994)
+
+* It is no longer a fatal error to have a NUL character in a makefile.
+ You should never put a NUL in a makefile because it can have strange
+ results, but otherwise empty lines full of NULs (such as produced by
+ the `xmkmf' program) will always work fine.
+
+* The error messages for nonexistent included makefiles now refer to the
+ makefile name and line number where the `include' appeared, so Emacs's
+ C-x ` command takes you there (in case it's a typo you need to fix).
+
+Version 3.69 (07 Nov 1993)
+
+* Implicit rule search for archive member references is now done in the
+ opposite order from previous versions: the whole target name `LIB(MEM)'
+ first, and just the member name and parentheses `(MEM)' second.
+
+* Make now gives an error for an unterminated variable or function reference.
+ For example, `$(foo' with no matching `)' or `${bar' with no matching `}'.
+
+* The new default variable `MAKE_VERSION' gives the version number of
+ Make, and a string describing the remote job support compiled in (if any).
+ Thus the value (in this release) is something like `3.69' or `3.69-Customs'.
+
+* Commands in an invocation of the `shell' function are no longer run
+ with a modified environment like recipes are. As in versions before
+ 3.68, they now run with the environment that `make' started with. We
+ have reversed the change made in version 3.68 because it turned out to
+ cause a paradoxical situation in cases like:
+
+ export variable = $(shell echo value)
+
+ When Make attempted to put this variable in the environment for a
+ recipe, it would try expand the value by running the shell command
+ `echo value'. In version 3.68, because it constructed an environment
+ for that shell command in the same way, Make would begin to go into an
+ infinite loop and then get a fatal error when it detected the loop.
+
+* The recipe given for `.DEFAULT' is now used for phony targets with no
+ recipe.
+
+Version 3.68 (28 Jul 1993)
+
+* You can list several archive member names inside parenthesis:
+ `lib(mem1 mem2 mem3)' is equivalent to `lib(mem1) lib(mem2) lib(mem3)'.
+
+* You can use wildcards inside archive member references. For example,
+ `lib(*.o)' expands to all existing members of `lib' whose names end in
+ `.o' (e.g. `lib(a.o) lib(b.o)'); `*.a(*.o)' expands to all such members
+ of all existing files whose names end in `.a' (e.g. `foo.a(a.o)
+ foo.a(b.o) bar.a(c.o) bar.a(d.o)'.
+
+* A suffix rule `.X.a' now produces two pattern rules:
+ (%.o): %.X # Previous versions produced only this.
+ %.a: %.X # Now produces this as well, just like other suffixes.
+
+* The new flag `--warn-undefined-variables' says to issue a warning message
+ whenever Make expands a reference to an undefined variable.
+
+* The new `-include' directive is just like `include' except that there is
+ no error (not even a warning) for a nonexistent makefile.
+
+* Commands in an invocation of the `shell' function are now run with a
+ modified environment like recipes are, so you can use `export' et al
+ to set up variables for them. They used to run with the environment
+ that `make' started with.
+
+Version 3.66 (21 May 1993)
+
+* `make --version' (or `make -v') now exits immediately after printing
+ the version number.
+
+Version 3.65 (09 May 1993)
+
+* Make now supports long-named members in `ar' archive files.
+
+Version 3.64 (21 Apr 1993)
+
+* Make now supports the `+=' syntax for a variable definition which appends
+ to the variable's previous value. See the section `Appending More Text
+ to Variables' in the manual for full details.
+
+* The new option `--no-print-directory' inhibits the `-w' or
+ `--print-directory' feature. Make turns on `--print-directory'
+ automatically if you use `-C' or `--directory', and in sub-makes; some
+ users have found this behavior undesirable.
+
+* The built-in implicit rules now support the alternative extension
+ `.txinfo' for Texinfo files, just like `.texinfo' and `.texi'.
+
+Version 3.63 (22 Jan 1993)
+
+* Make now uses a standard GNU `configure' script. See the new file
+ INSTALL for the new (and much simpler) installation procedure.
+
+* There is now a shell script to build Make the first time, if you have no
+ other `make' program. `build.sh' is created by `configure'; see README.
+
+* GNU Make now completely conforms to the POSIX.2 specification for `make'.
+
+* Elements of the `$^' and `$?' automatic variables that are archive
+ member references now list only the member name, as in Unix and POSIX.2.
+
+* You should no longer ever need to specify the `-w' switch, which prints
+ the current directory before and after Make runs. The `-C' switch to
+ change directory, and recursive use of Make, now set `-w' automatically.
+
+* Multiple double-colon rules for the same target will no longer have their
+ recipes run simultaneously under -j, as this could result in the two
+ recipes trying to change the file at the same time and interfering with
+ one another.
+
+* The `SHELL' variable is now never taken from the environment.
+ Each makefile that wants a shell other than the default (/bin/sh) must
+ set SHELL itself. SHELL is always exported to child processes.
+ This change was made for compatibility with POSIX.2.
+
+* Make now accepts long options. There is now an informative usage message
+ that tells you what all the options are and what they do. Try `make --help'.
+
+* There are two new directives: `export' and `unexport'. All variables are
+ no longer automatically put into the environments of the recipe lines that
+ Make runs. Instead, only variables specified on the command line or in
+ the environment are exported by default. To export others, use:
+ export VARIABLE
+ or you can define variables with:
+ export VARIABLE = VALUE
+ or:
+ export VARIABLE := VALUE
+ You can use just:
+ export
+ or:
+ .EXPORT_ALL_VARIABLES:
+ to get the old behavior. See the node `Variables/Recursion' in the manual
+ for a full description.
+
+* The recipe from the `.DEFAULT' special target is only applied to
+ targets which have no rules at all, not all targets with no recipe.
+ This change was made for compatibility with Unix make.
+
+* All fatal error messages now contain `***', so they are easy to find in
+ compilation logs.
+
+* Dependency file names like `-lNAME' are now replaced with the actual file
+ name found, as with files found by normal directory search (VPATH).
+ The library file `libNAME.a' may now be found in the current directory,
+ which is checked before VPATH; the standard set of directories (/lib,
+ /usr/lib, /usr/local/lib) is now checked last.
+ See the node `Libraries/Search' in the manual for full details.
+
+* A single `include' directive can now specify more than one makefile to
+ include, like this:
+ include file1 file2
+ You can also use shell file name patterns in an `include' directive:
+ include *.mk
+
+* The default directories to search for included makefiles, and for
+ libraries specified with `-lNAME', are now set by configuration.
+
+* You can now use blanks as well as colons to separate the directories in a
+ search path for the `vpath' directive or the `VPATH' variable.
+
+* You can now use variables and functions in the left hand side of a
+ variable assignment, as in "$(foo)bar = value".
+
+* The `MAKE' variable is always defined as `$(MAKE_COMMAND) $(MAKEOVERRIDES)'.
+ The `MAKE_COMMAND' variable is now defined to the name with which make
+ was invoked.
+
+* The built-in rules for C++ compilation now use the variables `$(CXX)' and
+ `$(CXXFLAGS)' instead of `$(C++)' and `$(C++FLAGS)'. The old names had
+ problems with shells that cannot have `+' in environment variable names.
+
+* The value of a recursively expanded variable is now expanded when putting
+ it into the environment for child processes. This change was made for
+ compatibility with Unix make.
+
+* A rule with no targets before the `:' is now accepted and ignored.
+ This change was made for compatibility with SunOS 4 make.
+ We do not recommend that you write your makefiles to take advantage of this.
+
+* The `-I' switch can now be used in MAKEFLAGS, and are put there
+ automatically just like other switches.
+
+Version 3.61
+
+* Built-in rules for C++ source files with the `.C' suffix.
+ We still recommend that you use `.cc' instead.
+
+* If a recipe is given too many times for a single target, the last one
+ given is used, and a warning message is printed.
+
+* Error messages about makefiles are in standard GNU error format,
+ so C-x ` in Emacs works on them.
+
+* Dependencies of pattern rules which contain no % need not actually exist
+ if they can be created (just like dependencies which do have a %).
+
+Version 3.60
+
+* A message is always printed when Make decides there is nothing to be done.
+ It used to be that no message was printed for top-level phony targets
+ (because "`phony' is up to date" isn't quite right). Now a different
+ message "Nothing to be done for `phony'" is printed in that case.
+
+* Archives on AIX now supposedly work.
+
+* When the recipes specified for .DEFAULT are used to update a target,
+ the $< automatic variable is given the same value as $@ for that target.
+ This is how Unix make behaves, and this behavior is mandated by POSIX.2.
+
+Version 3.59
+
+* The -n, -q, and -t options are not put in the `MAKEFLAGS' and `MFLAG'
+ variables while remaking makefiles, so recursive makes done while remaking
+ makefiles will behave properly.
+
+* If the special target `.NOEXPORT' is specified in a makefile,
+ only variables that came from the environment and variables
+ defined on the command line are exported.
+
+Version 3.58
+
+* Suffix rules may have dependencies (which are ignored).
+
+Version 3.57
+
+* Dependencies of the form `-lLIB' are searched for as /usr/local/lib/libLIB.a
+ as well as libLIB.a in /usr/lib, /lib, the current directory, and VPATH.
+
+Version 3.55
+
+* There is now a Unix man page for GNU Make. It is certainly not a
+ replacement for the Texinfo manual, but it documents the basic
+ functionality and the switches. For full documentation, you should
+ still read the Texinfo manual. Thanks to Dennis Morse of Stanford
+ University for contributing the initial version of this.
+
+* Variables which are defined by default (e.g., `CC') will no longer be
+ put into the environment for child processes. (If these variables are
+ reset by the environment, makefiles, or the command line, they will
+ still go into the environment.)
+
+* Makefiles which have recipes but no dependencies (and thus are always
+ considered out of date and in need of remaking), will not be remade (if they
+ were being remade only because they were makefiles). This means that GNU
+ Make will no longer go into an infinite loop when fed the makefiles that
+ `imake' (necessary to build X Windows) produces.
+
+* There is no longer a warning for using the `vpath' directive with an explicit
+pathname (instead of a `%' pattern).
+
+Version 3.51
+
+* When removing intermediate files, only one `rm' command line is printed,
+ listing all file names.
+
+* There are now automatic variables `$(^D)', `$(^F)', `$(?D)', and `$(?F)'.
+ These are the directory-only and file-only versions of `$^' and `$?'.
+
+* Library dependencies given as `-lNAME' will use "libNAME.a" in the current
+ directory if it exists.
+
+* The automatic variable `$($/)' is no longer defined.
+
+* Leading `+' characters on a recipe line make that line be executed even
+ under -n, -t, or -q (as if the line contained `$(MAKE)').
+
+* For recipe lines containing `$(MAKE)', `${MAKE}', or leading `+' characters,
+ only those lines are executed, not the entire recipe.
+ (This is how Unix make behaves for lines containing `$(MAKE)' or `${MAKE}'.)
+
+Version 3.50
+
+* Filenames in rules will now have ~ and ~USER expanded.
+
+* The `-p' output has been changed so it can be used as a makefile.
+ (All information that isn't specified by makefiles is prefaced with comment
+ characters.)
+
+Version 3.49
+
+* The % character can be quoted with backslash in implicit pattern rules,
+ static pattern rules, `vpath' directives, and `patsubst', `filter', and
+ `filter-out' functions. A warning is issued if a `vpath' directive's
+ pattern contains no %.
+
+* The `wildcard' variable expansion function now expands ~ and ~USER.
+
+* Messages indicating failed recipe lines now contain the target name:
+ make: *** [target] Error 1
+
+* The `-p' output format has been changed somewhat to look more like
+ makefile rules and to give all information that Make has about files.
+
+Version 3.48
+
+Version 3.47
+
+* The `-l' switch with no argument removes any previous load-average limit.
+
+* When the `-w' switch is in effect, and Make has updated makefiles,
+ it will write a `Leaving directory' message before re-executing itself.
+ This makes the `directory change tracking' changes to Emacs's compilation
+ commands work properly.
+
+Version 3.46
+
+* The automatic variable `$*' is now defined for explicit rules,
+ as it is in Unix make.
+
+Version 3.45
+
+* The `-j' switch is now put in the MAKEFLAGS and MFLAGS variables when
+ specified without an argument (indicating infinite jobs).
+ The `-l' switch is not always put in the MAKEFLAGS and MFLAGS variables.
+
+* Make no longer checks hashed directories after running recipes.
+ The behavior implemented in 3.41 caused too much slowdown.
+
+Version 3.44
+
+* A dependency is NOT considered newer than its dependent if
+ they have the same modification time. The behavior implemented
+ in 3.43 conflicts with RCS.
+
+Version 3.43
+
+* Dependency loops are no longer fatal errors.
+
+* A dependency is considered newer than its dependent if
+ they have the same modification time.
+
+Version 3.42
+
+* The variables F77 and F77FLAGS are now set by default to $(FC) and
+ $(FFLAGS). Makefiles designed for System V make may use these variables in
+ explicit rules and expect them to be set. Unfortunately, there is no way to
+ make setting these affect the Fortran implicit rules unless FC and FFLAGS
+ are not used (and these are used by BSD make).
+
+Version 3.41
+
+* Make now checks to see if its hashed directories are changed by recipes.
+ Other makes that hash directories (Sun, 4.3 BSD) don't do this.
+
+Version 3.39
+
+* The `shell' function no longer captures standard error output.
+
+Version 3.32
+
+* A file beginning with a dot can be the default target if it also contains
+ a slash (e.g., `../bin/foo'). (Unix make allows this as well.)
+
+Version 3.31
+
+* Archive member names are truncated to 15 characters.
+
+* Yet more USG stuff.
+
+* Minimal support for Microport System V (a 16-bit machine and a
+ brain-damaged compiler). This has even lower priority than other USG
+ support, so if it gets beyond trivial, I will take it out completely.
+
+* Revamped default implicit rules (not much visible change).
+
+* The -d and -p options can come from the environment.
+
+Version 3.30
+
+* Improved support for USG and HPUX (hopefully).
+
+* A variable reference like `$(foo:a=b)', if `a' contains a `%', is
+ equivalent to `$(patsubst a,b,$(foo))'.
+
+* Defining .DEFAULT with no deps or recipe clears its recipe.
+
+* New default implicit rules for .S (cpp, then as), and .sh (copy and
+ make executable). All default implicit rules that use cpp (even
+ indirectly), use $(CPPFLAGS).
+
+Version 3.29
+
+* Giving the -j option with no arguments gives you infinite jobs.
+
+Version 3.28
+
+* New option: "-l LOAD" says not to start any new jobs while others are
+ running if the load average is not below LOAD (a floating-point number).
+
+* There is support in place for implementations of remote command execution
+ in Make. See the file remote.c.
+
+Version 3.26
+
+* No more than 10 directories will be kept open at once.
+ (This number can be changed by redefining MAX_OPEN_DIRECTORIES in dir.c.)
+
+Version 3.25
+
+* Archive files will have their modification times recorded before doing
+ anything that might change their modification times by updating an archive
+ member.
+
+Version 3.20
+
+* The `MAKELEVEL' variable is defined for use by makefiles.
+
+Version 3.19
+
+* The recursion level indications in error messages are much shorter than
+ they were in version 3.14.
+
+Version 3.18
+
+* Leading spaces before directives are ignored (as documented).
+
+* Included makefiles can determine the default goal target.
+ (System V Make does it this way, so we are being compatible).
+
+Version 3.14.
+
+* Variables that are defaults built into Make will not be put in the
+ environment for children. This just saves some environment space and,
+ except under -e, will be transparent to sub-makes.
+
+* Error messages from sub-makes will indicate the level of recursion.
+
+* Hopefully some speed-up for large directories due to a change in the
+ directory hashing scheme.
+
+* One child will always get a standard input that is usable.
+
+* Default makefiles that don't exist will be remade and read in.
+
+Version 3.13.
+
+* Count parentheses inside expansion function calls so you can
+ have nested calls: `$(sort $(foreach x,a b,$(x)))'.
+
+Version 3.12.
+
+* Several bug fixes, including USG and Sun386i support.
+
+* `shell' function to expand shell commands a la `
+
+* If the `-d' flag is given, version information will be printed.
+
+* The `-c' option has been renamed to `-C' for compatibility with tar.
+
+* The `-p' option no longer inhibits other normal operation.
+
+* Makefiles will be updated and re-read if necessary.
+
+* Can now run several recipes at once (parallelism), -j option.
+
+* Error messages will contain the level of Make recursion, if any.
+
+* The `MAKEFLAGS' and `MFLAGS' variables will be scanned for options after
+ makefiles are read.
+
+* A double-colon rule with no dependencies will always have its recipe run.
+ (This is how both the BSD and System V versions of Make do it.)
+
+Version 3.05
+
+(Changes from versions 1 through 3.05 were never recorded. Sorry.)
+
+-------------------------------------------------------------------------------
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/NMakefile.template b/NMakefile.template
new file mode 100644
index 0000000..2007a3b
--- /dev/null
+++ b/NMakefile.template
@@ -0,0 +1,132 @@
+# -*-Makefile-*- to build GNU make with nmake
+#
+# NOTE: If you have no 'make' program at all to process this makefile,
+# run 'build_w32.bat' instead.
+#
+# Copyright (C) 1996-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+LINK = link
+CC = cl
+MAKE = nmake
+
+OUTDIR=.
+MAKEFILE=NMakefile
+SUBPROC_MAKEFILE=NMakefile
+
+CFLAGS_any = /nologo /MT /W4 /GX /Zi /YX /I . /I glob /I w32/include /D WIN32 /D WINDOWS32 /D _CONSOLE /D HAVE_CONFIG_H
+CFLAGS_debug = $(CFLAGS_any) /Od /D DEBUG /D _DEBUG /FR.\WinDebug/ /Fp.\WinDebug/make.pch /Fo.\WinDebug/ /Fd.\WinDebug/make.pdb
+CFLAGS_release = $(CFLAGS_any) /O2 /D NDEBUG /FR.\WinRel/ /Fp.\WinRel/make.pch /Fo.\WinRel/
+
+LDFLAGS_debug = w32\subproc\WinDebug\subproc.lib /NOLOGO /SUBSYSTEM:console\
+ /STACK:0x400000 /INCREMENTAL:no /PDB:WinDebug/make.pdb /OUT:WinDebug/make.exe /DEBUG
+LDFLAGS_release = w32\subproc\WinRel\subproc.lib /NOLOGO /SUBSYSTEM:console\
+ /STACK:0x400000 /INCREMENTAL:no /OUT:WinRel/make.exe
+
+all: config.h subproc Release Debug
+
+#
+# Make sure we build the subproc library first. It has it's own
+# makefile. To be portable to Windows 95, we put the instructions
+# on how to build the library into a batch file. On NT, we could
+# simply have done foo && bar && dog, but this doesn't port.
+#
+subproc: w32/subproc/WinDebug/subproc.lib w32/subproc/WinRel/subproc.lib
+
+w32/subproc/WinDebug/subproc.lib w32/subproc/WinRel/subproc.lib: w32/subproc/misc.c w32/subproc/sub_proc.c w32/subproc/w32err.c
+ subproc.bat $(SUBPROC_MAKEFILE) $(MAKE)
+ if exist WinDebug\make.exe erase WinDebug\make.exe
+ if exist WinRel\make.exe erase WinRel\make.exe
+
+config.h: config.h.W32
+ copy $? $@
+
+Release:
+ $(MAKE) /f $(MAKEFILE) LDFLAGS="$(LDFLAGS_release)" CFLAGS="$(CFLAGS_release)" OUTDIR=WinRel WinRel/make.exe
+Debug:
+ $(MAKE) /f $(MAKEFILE) LDFLAGS="$(LDFLAGS_debug)" CFLAGS="$(CFLAGS_debug)" OUTDIR=WinDebug WinDebug/make.exe
+
+clean:
+ if exist WinDebug\nul rmdir /s /q WinDebug
+ if exist WinRel\nul rmdir /s /q WinRel
+ if exist w32\subproc\WinDebug\nul rmdir /s /q w32\subproc\WinDebug
+ if exist w32\subproc\WinRel\nul rmdir /s /q w32\subproc\WinRel
+ if exist config.h erase config.h
+ erase *.pdb
+
+$(OUTDIR):
+ if not exist .\$@\nul mkdir .\$@
+
+LIBS = kernel32.lib user32.lib advapi32.lib
+
+guile = $(OUTDIR)/guile.obj
+
+OBJS = \
+ $(OUTDIR)/ar.obj \
+ $(OUTDIR)/arscan.obj \
+ $(OUTDIR)/commands.obj \
+ $(OUTDIR)/default.obj \
+ $(OUTDIR)/dir.obj \
+ $(OUTDIR)/expand.obj \
+ $(OUTDIR)/file.obj \
+ $(OUTDIR)/function.obj \
+ $(OUTDIR)/getloadavg.obj \
+ $(OUTDIR)/getopt.obj \
+ $(OUTDIR)/getopt1.obj \
+ $(OUTDIR)/hash.obj \
+ $(OUTDIR)/implicit.obj \
+ $(OUTDIR)/job.obj \
+ $(OUTDIR)/load.obj \
+ $(OUTDIR)/main.obj \
+ $(OUTDIR)/misc.obj \
+ $(OUTDIR)/output.obj \
+ $(OUTDIR)/read.obj \
+ $(OUTDIR)/remake.obj \
+ $(OUTDIR)/remote-stub.obj \
+ $(OUTDIR)/rule.obj \
+ $(OUTDIR)/signame.obj \
+ $(OUTDIR)/strcache.obj \
+ $(OUTDIR)/variable.obj \
+ $(OUTDIR)/version.obj \
+ $(OUTDIR)/vpath.obj \
+ $(OUTDIR)/glob.obj \
+ $(OUTDIR)/fnmatch.obj \
+ $(OUTDIR)/dirent.obj \
+ $(OUTDIR)/pathstuff.obj \
+ $(OUTDIR)/posixfcn.obj \
+ $(OUTDIR)/w32os.obj \
+ $(guile)
+
+$(OUTDIR)/make.exe: $(OUTDIR) $(OBJS)
+ $(LINK) @<<
+ $(LDFLAGS) $(LIBS) $(OBJS)
+<<
+
+.c{$(OUTDIR)}.obj:
+ $(CC) $(CFLAGS) /c $<
+
+$(OUTDIR)/glob.obj : glob/glob.c
+ $(CC) $(CFLAGS) /c $?
+$(OUTDIR)/fnmatch.obj : glob/fnmatch.c
+ $(CC) $(CFLAGS) /c $?
+$(OUTDIR)/dirent.obj : w32/compat/dirent.c
+ $(CC) $(CFLAGS) /c $?
+$(OUTDIR)/posixfcn.obj : w32/compat/posixfcn.c
+ $(CC) $(CFLAGS) /c $?
+$(OUTDIR)/pathstuff.obj : w32/pathstuff.c
+ $(CC) $(CFLAGS) /c $?
+$(OUTDIR)/w32os.obj : w32/w32os.c
+ $(CC) $(CFLAGS) /c $?
diff --git a/NOTICE b/NOTICE
new file mode 120000
index 0000000..d24842f
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1 @@
+COPYING
\ No newline at end of file
diff --git a/README.Amiga b/README.Amiga
new file mode 100644
index 0000000..68d3ea7
--- /dev/null
+++ b/README.Amiga
@@ -0,0 +1,77 @@
+Short: Port of GNU make with SAS/C (no ixemul.library required)
+Author: GNU, Amiga port by Aaron "Optimizer" Digulla
+Uploader: Aaron "Optimizer" Digulla (digulla@fh-konstanz.de)
+Type: dev/c
+
+This is a pure Amiga port of GNU make. It needs no extra libraries or
+anything. It has the following features (in addition to any features of
+GNU make):
+
+- Runs Amiga-Commands with SystemTags() (Execute)
+- Can run multi-line statements
+- Allows to use Device-Names in targets:
+
+ c:make : make.o
+
+ is ok. To distinguish between device-names and target : or ::, MAKE
+ looks for spaces. If there are any around :, it's taken as a target
+ delimiter, if there are none, it's taken as the name of a device. Note
+ that "make:make.o" tries to create "make.o" on the device "make:".
+- Replaces @@ by a newline in any command line:
+
+ if exists make @@\
+ delete make.bak quiet @@\
+ rename make make.bak @@\
+ endif @@\
+ $(CC) Link Make.o To make
+
+ works. Note that the @@ must stand alone (i.e., "make@@\" is illegal).
+ Also be careful that there is a space after the "\" (i.e., at the
+ beginning of the next line).
+- Can be made resident to save space and time
+- Amiga specific wildcards can be used in $(wildcard ...)
+
+BUGS:
+- The line
+
+ dummy.h : src/*.c
+
+tries to make dummy.h from "src/*.c" (i.e., no wildcard-expansion takes
+place). You have to use "$(wildcard src/*.c)" instead.
+
+COMPILING FROM SCRATCH
+----------------------
+
+To recompile, you need SAS/C 6.51. make itself is not necessary, there
+is an smakefile.
+
+1. Copy config.ami to config.h
+2. If you use make to compile, copy Makefile.ami to Makefile and
+ glob/Makefile.ami to glob/Makefile. Copy make into the current
+ directory.
+
+3. Run smake/make
+
+INSTALLATION
+
+Copy make somewhere in your search path (e.g., sc:c or sc:bin).
+If you plan to use recursive makes, install make resident:
+
+ Resident make Add
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1995-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.DOS.template b/README.DOS.template
new file mode 100644
index 0000000..bc31adb
--- /dev/null
+++ b/README.DOS.template
@@ -0,0 +1,340 @@
+Port of GNU Make to 32-bit protected mode on MSDOS and MS-Windows.
+
+Builds with DJGPP v2 port of GNU C/C++ compiler and utilities.
+
+
+New (since 3.74) DOS-specific features:
+
+ 1. Supports long filenames when run from DOS box on Windows 9x.
+
+ 2. Supports both stock DOS COMMAND.COM and Unix-style shells
+ (details in 'Notes' below).
+
+ 3. Supports DOS drive letters in dependencies and pattern rules.
+
+ 4. Better support for DOS-style backslashes in pathnames (but see
+ 'Notes' below).
+
+ 5. The $(shell) built-in can run arbitrary complex commands,
+ including pipes and redirection, even when COMMAND.COM is your
+ shell.
+
+ 6. Can be built without floating-point code (see below).
+
+ 7. Supports signals in child programs and restores the original
+ directory if the child was interrupted.
+
+ 8. Can be built without (a previous version of) Make.
+
+ 9. The build process requires only standard tools. (Optional
+ targets like "install:" and "clean:" still need additional
+ programs, though, see below.)
+
+ 10. Beginning with v3.78, the test suite works in the DJGPP
+ environment (requires Perl and auxiliary tools; see below).
+
+
+To install a binary distribution:
+
+ Simply unzip the makNNNb.zip file (where NNN is the version number)
+ preserving the directory structure (-d switch if you use PKUNZIP).
+ If you are installing Make on Windows 9X or Windows 2000, use an
+ unzip program that supports long filenames in zip files. After
+ unzipping, make sure the directory with make.exe is on your PATH,
+ and that's all you need to use Make.
+
+
+To build from sources:
+
+ 1. Unzip the archive, preserving the directory structure (-d switch
+ if you use PKUNZIP). If you build Make on Windows 9X or Windows
+ 2000, use an unzip program that supports long filenames in zip
+ files.
+
+ If you are unpacking an official GNU source distribution, use
+ either DJTAR (which is part of the DJGPP development
+ environment), or the DJGPP port of GNU Tar.
+
+ 2. Invoke the 'configure.bat' batch file.
+
+ If you are building Make in-place, i.e. in the same directory
+ where its sources are kept, just type "configure.bat" and press
+ [Enter]. Otherwise, you need to supply the path to the source
+ directory as an argument to the batch file, like this:
+
+ c:\djgpp\gnu\make-%VERSION%\configure.bat c:/djgpp/gnu/make-%VERSION%
+
+ Note the forward slashes in the source path argument: you MUST
+ use them here.
+
+ 3. If configure.bat doesn't find a working Make, it will suggest to
+ use the 'dosbuild.bat' batch file to build Make. Either do as it
+ suggests or install another Make program (a pre-compiled binary
+ should be available from the usual DJGPP sites) and rerun
+ configure.bat.
+
+ 4. If you will need to run Make on machines without an FPU, you
+ might consider building a version of Make which doesn't issue
+ floating-point instructions (they don't help much on MSDOS
+ anyway). To this end, edit the Makefile created by
+ configure.bat and add -DNO_FLOAT to the value of CPPFLAGS.
+
+ 5. Invoke Make.
+
+ If you are building from outside of the source directory, you
+ need to tell Make where the sources are, like this:
+
+ make srcdir=c:/djgpp/gnu/make-%VERSION%
+
+ (configure.bat will tell you this when it finishes). You MUST
+ use a full, not relative, name of the source directory here, or
+ else Make might fail.
+
+ 6. After Make finishes, if you have a Unix-style shell installed,
+ you can use the 'install' target to install the package. You
+ will also need GNU Fileutils and GNU Sed for this (they should
+ be available from the DJGPP sites).
+
+ By default, GNU make will install into your DJGPP installation
+ area. If you wish to use a different directory, override the
+ DESTDIR variable when invoking "make install", like this:
+
+ make install DESTDIR=c:/other/dir
+
+ This causes the make executable to be placed in c:/other/dir/bin,
+ the man pages in c:/other/dir/man, etc.
+
+ Without a Unix-style shell, you will have to install programs
+ and the docs manually. Copy make.exe to a directory on your
+ PATH, make.i* info files to your Info directory, and update the
+ file 'dir' in your Info directory by adding the following item
+ to the main menu:
+
+ * Make: (make.info). The GNU make utility.
+
+ If you have the 'install-info' program (from the GNU Texinfo
+ package), it will do that for you if you invoke it like this:
+
+ install-info --info-dir=c:/djgpp/info c:/djgpp/info/make.info
+
+ (If your Info directory is other than C:\DJGPP\INFO, change this
+ command accordingly.)
+
+ 7. The 'clean' targets also require Unix-style shell, and GNU Sed
+ and 'rm' programs (the latter from Fileutils).
+
+ 8. To run the test suite, type "make check". This requires a Unix
+ shell (I used the DJGPP port of Bash 2.03), Perl, Sed, Fileutils
+ and Sh-utils.
+
+
+Notes:
+-----
+
+ 1. The shell issue.
+
+ This is probably the most significant improvement, first
+ introduced in the port of GNU Make 3.75.
+
+ The original behavior of GNU Make is to invoke commands
+ directly, as long as they don't include characters special to
+ the shell or internal shell commands, because that is faster.
+ When shell features like redirection or filename wildcards are
+ involved, Make calls the shell.
+
+ This port supports both DOS shells (the stock COMMAND.COM and its
+ 4DOS/NDOS replacements), and Unix-style shells (tested with the
+ venerable Stewartson's 'ms_sh' 2.3 and the DJGPP port of 'bash' by
+ Daisuke Aoyama <jack@st.rim.or.jp>).
+
+ When the $SHELL variable points to a Unix-style shell, Make
+ works just like you'd expect on Unix, calling the shell for any
+ command that involves characters special to the shell or
+ internal shell commands. The only difference is that, since
+ there is no standard way to pass command lines longer than the
+ infamous DOS 126-character limit, this port of Make writes the
+ command line to a temporary disk file and then invokes the shell
+ on that file.
+
+ If $SHELL points to a DOS-style shell, however, Make will not
+ call it automatically, as it does with Unix shells. Stock
+ COMMAND.COM is too dumb and would unnecessarily limit the
+ functionality of Make. For example, you would not be able to
+ use long command lines in commands that use redirection or
+ pipes. Therefore, when presented with a DOS shell, this port of
+ Make will emulate most of the shell functionality, like
+ redirection and pipes, and shall only call the shell when a
+ batch file or a command internal to the shell is invoked. (Even
+ when a command is an internal shell command, Make will first
+ search the $PATH for it, so that if a Makefile calls 'mkdir',
+ you can install, say, a port of GNU 'mkdir' and have it called
+ in that case.)
+
+ The key to all this is the extended functionality of 'spawn' and
+ 'system' functions from the DJGPP library; this port just calls
+ 'system' where it would invoke the shell on Unix. The most
+ important aspect of these functions is that they use a special
+ mechanism to pass long (up to 16KB) command lines to DJGPP
+ programs. In addition, 'system' emulates some internal
+ commands, like 'cd' (so that you can now use forward slashes
+ with it, and can also change the drive if the directory is on
+ another drive). Another aspect worth mentioning is that you can
+ call Unix shell scripts directly, provided that the shell whose
+ name is mentioned on the first line of the script is installed
+ anywhere along the $PATH. It is impossible to tell here
+ everything about these functions; refer to the DJGPP library
+ reference for more details.
+
+ The $(shell) built-in is implemented in this port by calling
+ 'popen'. Since 'popen' calls 'system', the above considerations
+ are valid for $(shell) as well. In particular, you can put
+ arbitrary complex commands, including pipes and redirection,
+ inside $(shell), which is in many cases a valid substitute for
+ the Unix-style command substitution (`command`) feature.
+
+
+ 2. "SHELL=/bin/sh" -- or is it?
+
+ Many Unix Makefiles include a line which sets the SHELL, for
+ those versions of Make which don't have this as the default.
+ Since many DOS systems don't have 'sh' installed (in fact, most
+ of them don't even have a '/bin' directory), this port takes
+ such directives with a grain of salt. It will only honor such a
+ directive if the basename of the shell name (like 'sh' in the
+ above example) can indeed be found in the directory that is
+ mentioned in the SHELL= line ('/bin' in the above example), or
+ in the current working directory, or anywhere on the $PATH (in
+ that order). If the basename doesn't include a filename
+ extension, Make will look for any known extension that indicates
+ an executable file (.exe, .com, .bat, .btm, .sh, and even .sed
+ and .pl). If any such file is found, then $SHELL will be
+ defined to the exact pathname of that file, and that shell will
+ hence be used for the rest of processing. But if the named
+ shell is *not* found, the line which sets it will be effectively
+ ignored, leaving the value of $SHELL as it was before. Since a
+ lot of decisions that this port makes depend on the gender of
+ the shell, I feel it doesn't make any sense to tailor Make's
+ behavior to a shell which is nowhere to be found.
+
+ Note that the above special handling of "SHELL=" only happens
+ for Makefiles; if you set $SHELL in the environment or on the
+ Make command line, you are expected to give the complete
+ pathname of the shell, including the filename extension.
+
+ The default value of $SHELL is computed as on Unix (see the Make
+ manual for details), except that if $SHELL is not defined in the
+ environment, $COMSPEC is used. Also, if an environment variable
+ named $MAKESHELL is defined, it takes precedence over both
+ $COMSPEC and $SHELL. Note that, unlike Unix, $SHELL in the
+ environment *is* used to set the shell (since on MSDOS, it's
+ unlikely that the interactive shell will not be suitable for
+ Makefile processing).
+
+ The bottom line is that you can now write Makefiles where some
+ of the targets require a real (i.e. Unix-like) shell, which will
+ nevertheless work when such shell is not available (provided, of
+ course, that the commands which should always work, don't
+ require such a shell). More important, you can convert Unix
+ Makefiles to MSDOS and leave the line which sets the shell
+ intact, so that people who do have Unixy shell could use it for
+ targets which aren't converted to DOS (like 'install' and
+ 'uninstall', for example).
+
+
+ 3. Default directories.
+
+ GNU Make knows about standard directories where it searches for
+ library and include files mentioned in the Makefile. Since
+ MSDOS machines don't have standard places for these, this port
+ will search ${DJDIR}/lib and ${DJDIR}/include respectively.
+ $DJDIR is defined automatically by the DJGPP startup code as the
+ root of the DJGPP installation tree (unless you've tampered with
+ the DJGPP.ENV file). This should provide reasonable default
+ values, unless you moved parts of DJGPP to other directories.
+
+
+ 4. Letter-case in filenames.
+
+ If you run Make on Windows 9x, you should be aware of the
+ letter-case issue. Make is internally case-sensitive, but all
+ file operations are case-insensitive on Windows 9x, so
+ e.g. files 'FAQ', 'faq' and 'Faq' all refer to the same file, as
+ far as Windows is concerned. The underlying DJGPP C library
+ functions honor the letter-case of the filenames they get from
+ the OS, except that by default, they down-case 8+3 DOS filenames
+ which are stored in upper case in the directory and would break
+ many Makefiles otherwise. (The details of which filenames are
+ converted to lower case are explained in the DJGPP libc docs,
+ under the '_preserve_fncase' and '_lfn_gen_short_fname'
+ functions, but as a thumb rule, any filename that is stored in
+ upper case in the directory, is a valid DOS 8+3 filename and
+ doesn't include characters invalid on MSDOS FAT filesystems,
+ will be automatically down-cased.) User reports that I have
+ indicate that this default behavior is generally what you'd
+ expect; however, your input is most welcome.
+
+ In any case, if you hit a situation where you must force Make to
+ get the 8+3 DOS filenames in upper case, set FNCASE=y in the
+ environment or in the Makefile.
+
+
+ 5. DOS-style pathnames.
+
+ There are a lot of places throughout the program sources which
+ make implicit assumptions about the pathname syntax. In
+ particular, the directories are assumed to be separated by '/',
+ and any pathname which doesn't begin with a '/' is assumed to be
+ relative to the current directory. This port attempts to
+ support DOS-style pathnames which might include the drive letter
+ and use backslashes instead of forward slashes. However, this
+ support is not complete; I feel that pursuing this support too
+ far might break some more important features, particularly if
+ you use a Unix-style shell (where a backslash is a quote
+ character). I only consider support of backslashes desirable
+ because some Makefiles invoke non-DJGPP programs which don't
+ understand forward slashes. A notable example of such programs
+ is the standard programs which come with MSDOS. Otherwise, you
+ are advised to stay away from backslashes whenever possible. In
+ particular, filename globbing won't work on pathnames with
+ backslashes, because the GNU 'glob' library doesn't support them
+ (backslash is special in filename wildcards, and I didn't want
+ to break that).
+
+ One feature which *does* work with backslashes is the filename-
+ related built-in functions such as $(dir), $(notdir), etc.
+ Drive letters in pathnames are also fully supported.
+
+
+
+Bug reports:
+-----------
+
+ Bugs that are clearly related to the MSDOS/DJGPP port should be
+ reported first on the comp.os.msdos.djgpp news group (if you cannot
+ post to Usenet groups, write to the DJGPP mailing list,
+ <djgpp@delorie.com>, which is an email gateway into the above news
+ group). For other bugs, please follow the procedure explained in
+ the "Bugs" chapter of the Info docs. If you don't have an Info
+ reader, look up that chapter in the 'make.i1' file with any text
+ browser/editor.
+
+
+ Enjoy,
+ Eli Zaretskii <eliz@is.elta.co.il>
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.OS2.template b/README.OS2.template
new file mode 100644
index 0000000..0ce81b4
--- /dev/null
+++ b/README.OS2.template
@@ -0,0 +1,176 @@
+Port of GNU make to OS/2.
+
+Features of GNU make that do not work under OS/2:
+ - remote job execution
+ - dynamic load balancing
+
+
+Special features of the OS/2 version:
+
+Due to the fact that some people might want to use sh syntax in
+Makefiles while others might want to use OS/2's native shell cmd.exe,
+GNU make supports both shell types. The following list defines the order
+that is used to determine the shell:
+
+ 1. The shell specified by the environment variable MAKESHELL.
+ 2. The shell specified by the SHELL variable within a Makefile. Like
+ Unix, SHELL is NOT taken from the environment.
+ 3. The shell specified by the COMSPEC environment variable.
+ 4. The shell specified by the OS2_SHELL environment variable.
+ 5. If none of the above is defined /bin/sh is used as default. This
+ happens e.g. in the make testsuite.
+
+Note: - Points 3 and 4 can be turned off at compile time by adding
+ -DNO_CMD_DEFAULT to the CPPFLAGS.
+ - DOS support is not tested for EMX and therefore might not work.
+ - The UNIXROOT environment variable is supported to find /bin/sh
+ if it is not on the current drive.
+
+
+COMPILATION OF GNU MAKE FOR OS/2:
+
+I. ***** SPECIAL OPTIONS *****
+
+ - At compile time you can turn off that cmd is used as default shell
+ (but only /bin/sh). Simply set CPPFLAGS="-DNO_CMD_DEFAULT" and make
+ will not use cmd unless you cause it to do so by setting MAKESHELL to
+ cmd or by specifying SHELL=cmd in your Makefile.
+
+ - At compile time you can set CPPFLAGS="-DNO_CHDIR2" to turn off that
+ GNU make prints drive letters. This is necessary if you want to run
+ the testsuite.
+
+
+II. ***** REQUIREMENTS FOR THE COMPILATION *****
+
+A standard Unix like build environment:
+
+ - sh compatible shell (ksh, bash, ash, but tested only with pdksh 5.2.14
+ release 2)
+ If you use pdksh it is recommended to update to 5.2.14 release 2. Older
+ versions may not work! You can get this version at
+ http://www.math.ohio-state.edu/~ilya/software/os2/pdksh-5.2.14-bin-2.zip
+ - GNU file utilities (make sure that install.exe from the file utilities
+ is in front of your PATH before X:\OS2\INSTALL\INSTALL.EXE. I recommend
+ also to change the filename to ginstall.exe instead of install.exe
+ to avoid confusion with X:\OS2\INSTALL\INSTALL.EXE)
+ - GNU shell utilities
+ - GNU text utilities
+ - gawk
+ - grep
+ - sed
+ - GNU make 3.79.1 (special OS/2 patched version) or higher
+ - perl 5.005 or higher
+ - GNU texinfo (you can use 3.1 (gnuinfo.zip), but I recommend 4.0)
+
+If you want to recreate the configuration files (developers only!)
+you need also: GNU m4 1.4, autoconf 2.59, automake 1.9.6 (or compatible)
+
+
+III. ***** COMPILATION AND INSTALLATION *****
+
+ a) ** Developers only - Everyone else should skip this section **
+ To recreate the configuration files use:
+
+ export EMXSHELL=ksh
+ aclocal -I config
+ automake
+ autoconf
+ autoheader
+
+
+b) Installation into x:/usr
+
+ Note: Although it is possible to compile make using "./configure",
+ "make", "make install" this is not recommended. In particular,
+ you must ALWAYS use LDFLAGS="-Zstack 0x6000" because the default
+ stack size is far to small and make will not work properly!
+
+Recommended environment variables and installation options:
+
+ export ac_executable_extensions=".exe"
+ export CPPFLAGS="-D__ST_MT_ERRNO__"
+ export CFLAGS="-O2 -Zomf -Zmt"
+ export LDFLAGS="-Zcrtdll -Zlinker /exepack:2 -Zlinker /pm:vio -Zstack 0x6000"
+ export RANLIB="echo"
+ ./configure --prefix=x:/usr --infodir=x:/usr/share/info --mandir=x:/usr/share/man --without-included-gettext
+ make AR=emxomfar
+ make install
+
+Note: If you use gcc 2.9.x I recommend to set also LIBS="-lgcc"
+
+Note: You can add -DNO_CMD_DEFAULT and -DNO_CHDIR2 to CPPFLAGS.
+ See section I. for details.
+
+
+IV. ***** NLS support *****
+
+GNU make has NLS (National Language Support), with the following
+caveats:
+
+ a) It will only work with GNU gettext, and
+ b) GNU gettext support is not included in the GNU make package.
+
+Therefore, if you wish to enable the internationalization features of
+GNU make you must install GNU gettext on your system before configuring
+GNU make.
+
+You can choose the languages to be installed. To install support for
+English, German and French only enter:
+
+ export LINGUAS="en de fr"
+
+If you don't specify LINGUAS all languages are installed.
+
+If you don't want NLS support (English only) use the option
+--disable-nls for the configure script. Note if GNU gettext is not
+installed then NLS will not be enabled regardless of this flag.
+
+
+V. ***** Running the make test suite *****
+
+To run the included make test suite you have to set
+
+ CPPFLAGS="-D__ST_MT_ERRNO__ -DNO_CMD_DEFAULT -DNO_CHDIR2"
+
+before you compile make. This is due to some restrictions of the
+testsuite itself. -DNO_CMD_DEFAULT causes make to use /bin/sh as default
+shell in every case. Normally you could simply set MAKESHELL="/bin/sh"
+to do this but the testsuite ignores the environment. -DNO_CHDIR2 causes
+make not to use drive letters for directory names (i.e. _chdir2() and
+_getcwd2() are NOT used). The testsuite interpretes the whole output of
+make, especially statements like make[1]: Entering directory
+'C:/somewhere/make-3.79.1/tests' where the testsuite does not expect the
+drive letter. This would be interpreted as an error even if there is
+none.
+
+To run the testsuite do the following:
+
+ export CPPFLAGS="-D__ST_MT_ERRNO__ -DNO_CMD_DEFAULT -DNO_CHDIR2"
+ export CFLAGS="-Zomf -O2 -Zmt"
+ export LDFLAGS="-Zcrtdll -s -Zlinker /exepack:2 -Zlinker /pm:vio -Zstack 0x6000"
+ export RANLIB="echo"
+ ./configure --prefix=x:/usr --disable-nls
+ make AR=emxomfar
+ make check
+
+All tests should work fine with the exception of one of the "INCLUDE_DIRS"
+tests which will fail if your /usr/include directory is on a drive different
+from the make source tree.
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 2003-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.VMS b/README.VMS
new file mode 100644
index 0000000..5532b01
--- /dev/null
+++ b/README.VMS
@@ -0,0 +1,515 @@
+Overview: -*-text-mode-*-
+---------
+
+ This version of GNU make has been tested on:
+ OpenVMS V8.3/V8.4 (Alpha) and V8.4 (Integrity) AND V7.3 (VAX)
+
+ This version of GNU Make is intended to be run from DCL to run
+ make scripts with a special syntax that is described below. It
+ likely will not be able to run unmodified Unix makefiles.
+
+ There is an older implementation of GNU Make that was ported to GNV.
+ Work is now in progress to merge that port to get a single version
+ of GNU Make available. When that merge is done, GNU Make will auto
+ detect that it is running under a Posix shell and then operate as close to
+ GNU Make on Unix as possible.
+
+ The descriptions below are for running GNU make from DCL or equivalent.
+
+Recipe differences:
+-------------------
+
+ GNU Make for OpenVMS can not currently run native Unix make files because of
+ differences in the implementation.
+
+ I am trying to document the current behavior in this section. This is based
+ on the information in the file NEWS. and running the test suite.
+ TODO: More tests are needed to validate and demonstrate the OpenVMS
+ expected behavior.
+
+ In some cases the older behavior of GNU Make when run from DCL is not
+ compatible with standard makefile behavior.
+
+ This behavior can be changed when running GNU Make from DCL by setting
+ either DCL symbols or logical names of the format GNV$. The settings
+ are enabled with a string starting with one of '1', 'T', or 'E' for "1",
+ "TRUE", or "ENABLE". They are disabled with a '0', 'F', or 'D' for "1",
+ "FALSE", or "DISABLE". If they are not explicitly set to one of these
+ values, then they will be set to their default values.
+
+ The value of the setting DECC$FILENAME_UNIX_REPORT or
+ DECC$FILENAME_UNIX_ONLY will now cause the $(dir x) function to return
+ './' or '[]' as appropriate.
+
+ The name GNV$MAKE_OLD_VMS when enabled will cause GNU Make to behave as
+ much as the older method as can be done with out disabling VMS features.
+ When it is disabled GNU Make have the new behavior which more closely
+ matches Unix Make behavior.
+
+ The default is currently the old behavior when running GNU Make from DCL.
+ In the future this may change. When running make from GNV Bash the new
+ behavior is the default.
+
+ This is a global setting that sets the default behavior for several other
+ options that can be individually changed. Many of the individual settings
+ are to make it so that the self tests for GNU Make need less VMS specific
+ modifications.
+
+ The name GNV$MAKE_COMMA when enabled will cause GNU Make to expect a comma
+ for a path separator and use a comma for the separator for a list of files.
+ When disabled, it will cause GNU Make to use a colon for a path separator
+ and a space for the separator for a list of files. The default is to be
+ enabled if the GNU Make is set to the older behavior.
+
+ The name GNV$MAKE_SHELL_SIM when enabled will cause GNU Make to try to
+ simulate a Posix shell more closely. The following behaviors occur:
+
+ * Single quotes are converted to double quotes and any double
+ quotes inside of them are doubled. No environment variable expansion
+ is simulated.
+ * A exit command status will be converted to a Posix Exit
+ where 0 is success and non-zero is failure.
+ * The $ character will cause environment variable expansion.
+ * Environent variables can be set on the command line before a command.
+
+ VMS generally uses logical name search lists instead of path variables
+ where the resolution is handled by VMS independent of the program. Which
+ means that it is likely that nothing will notice if the default path
+ specifier is changed in the future.
+
+ Currently the built in VMS specific macros and recipes depend on the comma
+ being used as a file list separator.
+ TODO: Remove this dependency as other functions in GNU Make depend on a
+ space being used as a separator.
+
+ The format for recipes are a combination of Unix macros, a subset of
+ simulated UNIX commands, some shell emulation, and OpenVMS commands.
+ This makes the resulting makefiles unique to the OpenVMS port of GNU make.
+
+ If you are creating a OpenVMS specific makefile from scratch, you should also
+ look at MMK (Madgoat Make) available at https://github.com/endlesssoftware/mmk
+ MMK uses full OpenVMS syntax and a persistent subprocess is used for the
+ recipe lines, allowing multiple line rules.
+
+ The default makefile search order is "makefile.vms", "gnumakefile",
+ "makefile". TODO: See if that lookup is case sensitive.
+
+ When Make is invoked from DCL, it will create a foreign command
+ using the name of executable image, with any facility prefix removed,
+ for the duration of the make program, so it can be used internally
+ to recursively run make(). The macro MAKE_COMMAND will be set to
+ this foreign command.
+
+ When make is launched from an exec*() command from a C program,
+ the foreign command is not created. The macro MAKE_COMMAND will be
+ set to the actual command passed as argv[0] to the exec*() function.
+
+ If the DCL symbol or logical name GNV$MAKE_USE_MCR exists, then
+ the macro MAKE_COMMAND will be set to be an "MCR" command with the
+ absolute path used by DCL to launch make. The foreign command
+ will not be created.
+
+ The macro MAKE is set to be the same value as the macro MAKE_COMMAND
+ on all platforms.
+
+ Each recipe command is normally run as a separate spawned processes,
+ except for the cases documented below where a temporary DCL command
+ file may be used.
+
+ BUG: Testing has shown that the commands in the temporary command files
+ are not always created properly. This issue is still under investigation.
+
+ Any macros marked as exported are temporarily created as DCL symbols
+ for child images to use. DCL symbol substitution is not done with these
+ commands.
+ Untested: Symbol substitution.
+
+ When a temporary DCL command file is used, DCL symbol substitution
+ will work.
+
+ For VMS 7.3-1 and earlier, command lines are limited to 255 characters
+ or 1024 characters in a command file.
+ For VMS 7.3-2 and later, command lines are limited to 4059 characters
+ or 8192 characters in a command file.
+
+ VMS limits each token of a command line to 256 characters, and limits
+ a command line to 127 tokens.
+
+ Command lines above the limit length are written to a command file
+ in sys$scratch:.
+
+ In order to handle Unix style extensions to VMS DCL, GNU Make has
+ parsed the recipe commands and them modified them as needed. The
+ parser has been re-written to resolve numerous bugs in handling
+ valid VMS syntax and potential buffer overruns.
+
+ The new parser may need whitespace characters where DCL does not require
+ it, and also may require that quotes are matched were DCL forgives if
+ they are not. There is a small chance that existing VMS specific makefiles
+ will be affected.
+
+ The '<', '>' was previously implemented using command files. Now
+ GNU Make will check to see if the is already a VMS "PIPE" command and
+ if it is not, will convert the command to a VMS "PIPE" command.
+
+ The '>>' redirection has been implemented by using a temporary command file.
+ This will be described later.
+
+ The DCL symbol or logical name GNV$MAKE_USE_CMD_FILE when set to a
+ string starting with one of '1','T', or 'E' for "1", "TRUE", or "ENABLE",
+ then temporary DCL command files are always used for running commands.
+
+ Some recipe strings with embedded new lines will not be handled correctly
+ when a command file is used.
+
+ GNU Make generally does text comparisons for the targets and sources. The
+ make program itself can handle either Unix or OpenVMS format filenames, but
+ normally does not do any conversions from one format to another.
+ TODO: The OpenVMS format syntax handling is incomplete.
+ TODO: ODS-5 EFS support is missing.
+ BUG: The internal routines to convert filenames to and from OpenVMS format
+ do not work correctly.
+
+ Note: In the examples below, line continuations such as a backslash may have
+ been added to make the examples easier to read in this format.
+ BUG: That feature does not completely work at this time.
+
+ Since the OpenVMS utilities generally expect OpenVMS format paths, you will
+ usually have to use OpenVMS format paths for rules and targets.
+ BUG: Relative OpenVMS paths may not work in targets, especially combined
+ with vpaths. This is because GNU make will just concatenate the directories
+ as it does on Unix.
+
+ The variables $^ and $@ separate files with commas instead of spaces.
+ This is controlled by the name GNV$MAKE_COMMA as documented in the
+ previous section.
+
+ While this may seem the natural thing to do with OpenVMS, it actually
+ causes problems when trying to use other make functions that expect the
+ files to be separated by spaces. If you run into this, you need the
+ following workaround to convert the output.
+ TODO: Look at have the $^ and $@ use spaces like on Unix and have
+ and easy to use function to do the conversions and have the built
+ in OpenVMS specific recipes and macros use it.
+
+ Example:
+
+comma := ,
+empty :=
+space := $(empty) $(empty)
+
+foo: $(addsuffix .3,$(subs $(comma),$(space),$^)
+
+
+ Makefile variables are looked up in the current environment. You can set
+ symbols or logicals in DCL and evaluate them in the Makefile via
+ $(<name-of-symbol-or-logical>). Variables defined in the Makefile
+ override OpenVMS symbols/logicals.
+
+ OpenVMS logical and symbols names show up as "environment" using the
+ origin function. when the "-e" option is specified, the origion function
+ shows them as "environment override". On Posix the test scripts indicate
+ that they should show up just as "environment".
+
+ When GNU make reads in a symbol or logical name into the environment, it
+ converts any dollar signs found to double dollar signs for convenience in
+ using DCL symbols and logical names in recipes. When GNU make exports a
+ DCL symbol for a child process, if the first dollar sign found is followed
+ by second dollar sign, then all double dollar signs will be convirted to
+ single dollar signs.
+
+ The variable $(ARCH) is predefined as IA64, ALPHA or VAX respectively.
+ Makefiles for different OpenVMS systems can now be written by checking
+ $(ARCH). Since IA64 and ALPHA are similar, usually just a check for
+ VAX or not VAX is sufficient.
+
+ You may have to update makefiles that assume VAX if not ALPHA.
+
+ifeq ($(ARCH),VAX)
+ $(ECHO) "On the VAX"
+else
+ $(ECHO) "On the ALPHA or IA64"
+endif
+
+ Empty commands are handled correctly and don't end in a new DCL process.
+
+ The exit command needs to have OpenVMS exit codes. To pass a Posix code
+ back to the make script, you need to encode it by multiplying it by 8
+ and then adding %x1035a002 for a failure code and %x1035a001 for a
+ success. Make will interpret any posix code other than 0 as a failure.
+ TODO: Add an option have simulate Posix exit commands in recipes.
+
+ Lexical functions can be used in pipes to simulate shell file test rules.
+
+ Example:
+
+ Posix:
+b : c ; [ -f $@ ] || echo >> $@
+
+ OpenVMS:
+b : c ; if f$$search("$@") then pipe open/append xx $@ ; write xx "" ; close xx
+
+
+ You can also use pipes and turning messages off to silently test for a
+ failure.
+
+x = %x1035a00a
+
+%.b : %.c
+<tab>pipe set mess/nofac/noiden/nosev/notext ; type $^/output=$@ || exit $(x)
+
+
+Runtime issues:
+
+ The OpenVMS C Runtime has a convention for encoding a Posix exit status into
+ to OpenVMS exit codes. These status codes will have the hex value of
+ 0x35a000. OpenVMS exit code may also have a hex value of %x10000000 set on
+ them. This is a flag to tell DCL not to write out the exit code.
+
+ To convert an OpenVMS encoded Posix exit status code to the original code
+ You subtract %x35a000 and any flags from the OpenVMS code and divide it by 8.
+
+ WARNING: Backward-incompatibility!
+ The make program exit now returns the same encoded Posix exit code as on
+ Unix. Previous versions returned the OpenVMS exit status code if that is what
+ caused the recipe to fail.
+ TODO: Provide a way for scripts calling make to obtain that OpenVMS status
+ code.
+
+ Make internally has two error codes, MAKE_FAILURE and MAKE_TROUBLE. These
+ will have the error "-E-" severity set on exit.
+
+ MAKE_TROUBLE is returned only if the option "-q" or "--question" is used and
+ has a Posix value of 1 and an OpenVMS status of %x1035a00a.
+
+ MAKE_FAILURE has a Posix value of 2 and an OpenVMS status of %x1035a012.
+
+ Output from GNU make may have single quotes around some values where on
+ other platforms it does not. Also output that would be in double quotes
+ on some platforms may show up as single quotes on VMS.
+
+ There may be extra blank lines in the output on VMS.
+ https://savannah.gnu.org/bugs/?func=detailitem&item_id=41760
+
+ There may be a "Waiting for unfinished jobs..." show up in the output.
+
+ Error messages generated by Make or Unix utilities may slightly vary from
+ Posix platforms. Typically the case may be different.
+
+ When make deletes files, on posix platforms it writes out 'rm' and the list
+ of files. On VMS, only the files are writen out, one per line.
+ TODO: VMS
+
+ There may be extra leading white space or additional or missing whitespace
+ in the output of recipes.
+
+ GNU Make uses sys$scratch: for the tempfiles that it creates.
+
+ The OpenVMS CRTL library maps /tmp to sys$scratch if the TMP: logical name
+ does not exist. As the CRTL may use both sys$scratch: and /tmp internally,
+ if you define the TMP logical name to be different than SYS$SCRATCH:,
+ you may end up with only some temporary files in TMP: and some in SYS$SCRATCH:
+
+ The default include directory for including other makefiles is
+ SYS$SYSROOT:[SYSLIB] (I don't remember why I didn't just use
+ SYS$LIBRARY: instead; maybe it wouldn't work that way).
+ TODO: A better default may be desired.
+
+ If the device for a file in a recipe does not exist, on OpenVMS an error
+ message of "stat: <file>: no such device or address" will be output.
+
+ Make ignores success, informational, or warning errors (-S-, -I-, or
+ -W-). But it will stop on -E- and -F- errors. (unless you do something
+ to override this in your makefile, or whatever).
+
+
+Unix compatibilty features:
+---------------------------
+
+ If the command 'echo' is seen, any single quotes on the line will be
+ converted to double quotes.
+
+ The variable $(CD) is implemented as a built in Change Directory
+ command. This invokes the 'builtin_cd' Executing a 'set default'
+ recipe doesn't do the trick, since it only affects the subprocess
+ spawned for that command.
+
+ The 'builtin_cd' is generally expected to be on its own line.
+ The 'builtin_cd' either from the expansion of $(CD) or directly
+ put in a recipe line will be executed before any other commands in
+ that recipe line. DCL parameter substitution will not work for the
+ 'builtin_cd' command.
+
+ Putting a 'builtin_cd' in a pipeline or an IF-THEN line should not be
+ done because the 'builtin_cd' is always executed
+ and executed first. The directory change is persistent.
+
+ Unix shell style I/O redirection is supported. You can now write lines like:
+ "<tab>mcr sys$disk:[]program.exe < input.txt > output.txt &> error.txt"
+
+ Posix shells have ":" as a null command. These are now handled.
+ https://savannah.gnu.org/bugs/index.php?41761
+
+ A note on appending the redirected output. A simple mechanism is
+ implemented to make ">>" work in action lines. In OpenVMS there is no simple
+ feature like ">>" to have DCL command or program output redirected and
+ appended to a file. GNU make for OpenVMS implements the redirection
+ of ">>" by using a command procedure.
+
+ The current algorithm creates the output file if it does not exist and
+ then uses the DCL open/append to extend it. SYS$OUTPUT is then directed
+ to that file.
+
+ The implementation supports only one redirected append output to a file
+ and that redirection is done before any other commands in that line
+ are executed, so it redirects all output for that command.
+
+ The older implementation wrote the output to a temporary file in
+ in sys$scratch: and then attempted to append the file to the existing file.
+ The temporary file names looked like "CMDxxxxx.". Any time the created
+ command procedure can not complete, this happens. Pressing Ctrl+Y to
+ abort make is one case.
+
+ In case of Ctrl+Y the associated command procedure is left in SYS$SCRATCH:.
+ The command procedures will be named gnv$make_cmd*.com.
+
+ The CtrlY handler now uses $delprc to delete all children. This way also
+ actions with DCL commands will be stopped. As before the CtrlY handler
+ then sends SIGQUIT to itself, which is handled in common code.
+
+ Temporary command files are now deleted in the OpenVMS child termination
+ handler. That deletes them even if a Ctrl+C was pressed.
+ TODO: Does the previous section about >> leaving files still apply?
+
+ The behavior of pressing Ctrl+C is not changed. It still has only an effect,
+ after the current action is terminated. If that doesn't happen or takes too
+ long, Ctrl+Y should be used instead.
+
+
+Build Options:
+
+ Added support to have case sensitive targets and dependencies but to
+ still use case blind file names. This is especially useful for Java
+ makefiles on VMS:
+
+<TAB>.SUFFIXES :
+<TAB>.SUFFIXES : .class .java
+<TAB>.java.class :
+<TAB><TAB>javac "$<"
+<TAB>HelloWorld.class : HelloWorld.java
+
+ A new macro WANT_CASE_SENSITIVE_TARGETS in config.h-vms was introduced.
+ It needs to be enabled to get this feature; default is disabled.
+ TODO: This should be a run-time setting based on if the process
+ has been set to case sensitive.
+
+
+Unimplemented functionality:
+
+ The new feature "Loadable objects" is not yet supported. If you need it,
+ please send a change request or submit a bug report.
+
+ The new option --output-sync (-O) is accepted but has no effect: GNU make
+ for OpenVMS does not support running multiple commands simultaneously.
+
+
+Self test failures and todos:
+-----------------------------
+
+ The test harness can not handle testing some of the VMS specific modes
+ because of the features needed for to be set for the Perl to run.
+ Need to find a way to set the VMS features before running make as a
+ child.
+
+ GNU make was not currently translating the OpenVMS encoded POSIX values
+ returned to it back to the Posix values. I have temporarily modified the
+ Perl test script to compensate for it. This should be being handled
+ internally to Make.
+ TODO: Verify and update the Perl test script.
+
+ The features/parallelism test was failing. OpenVMS is executing the rules
+ in sequence not in parallel as this feature was not implemented.
+ GNU Make on VMS no longer claims it is implemented.
+ TODO: Implement it.
+
+ Symlink support is not present. Symlinks are supported by OpenVMS 8.3 and
+ later.
+
+ Error messages should be supressed with the "-" at the beginning of a line.
+ On openVMS they were showing up. TODO: Is this still an issue?
+
+ The internal vmsify and unixify OpenVMS to/from UNIX are not handling logical
+ names correctly.
+
+
+Build instructions:
+------------------
+
+ Don't use the HP C V7.2-001 compiler, which has an incompatible change
+ how __STDC__ is defined. This results at least in compile time warnings.
+
+Make a 1st version
+ $ @makefile.com ! ignore any compiler and/or linker warning
+ $ copy make.exe 1st-make.exe
+
+ Use the 1st version to generate a 2nd version as a test.
+ $ mc sys$disk:[]1st-make clean ! ignore any file not found messages
+ $ mc sys$disk:[]1st-make
+
+ Verify your 2nd version by building Make again.
+ $ copy make.exe 2nd-make.exe
+ $ mc sys$disk:[]2nd-make clean
+ $ mc sys$disk:[]2nd-make
+
+
+Running the tests:
+------------------
+
+ Running the tests on OpenVMS requires the following software to be installed
+ as most of the tests are Unix oriented.
+
+ * Perl 5.18 or later.
+ https://sourceforge.net/projects/vmsperlkit/files/
+ * GNV 2.1.3 + Updates including a minimum of:
+ * Bash 4.3.30
+ * ld_tools 3.0.2
+ * coreutils 8.21
+ https://sourceforge.net/p/gnv/wiki/InstallingGNVPackages/
+ https://sourceforge.net/projects/gnv/files/
+
+ As the test scripts need to create some foreign commands that persist
+ after the test is run, it is recommend that either you use a subprocess or
+ a dedicated login to run the tests.
+
+ To get detailed information for running the tests:
+
+ $ set default [.tests]
+ $ @run_make_tests help
+
+ Running the script with no parameters will run all the tests.
+
+ After the the test script has been run once in a session, assuming
+ that you built make in sys$disk:[make], you can redefined the
+ "bin" logical name as follows:
+
+ $ define bin sys$disk:[make],gnv$gnu:[bin]
+
+ Then you can use Perl to run the scripts.
+
+ $ perl run_make_tests.pl
+
+
+Acknowlegements:
+----------------
+
+See NEWS. for details of past changes.
+
+ These are the currently known contributers to this port.
+
+ Hartmut Becker
+ John Malmberg
+ Michael Gehre
+ John Eisenbraun
+ Klaus Kaempf
+ Mike Moretti
+ John W. Eaton
diff --git a/README.W32.template b/README.W32.template
new file mode 100644
index 0000000..3ac3354
--- /dev/null
+++ b/README.W32.template
@@ -0,0 +1,314 @@
+This version of GNU make has been tested on:
+ Microsoft Windows 2000/XP/2003/Vista/7/8/10
+It has also been used on Windows 95/98/NT, and on OS/2.
+
+It builds with the MinGW port of GCC (tested with GCC 3.4.2, 4.8.1,
+and 4.9.3).
+
+It also builds with MSVC 2.x, 4.x, 5.x, 6.x, 2003, and 14 (2015) as
+well as with .NET 7.x and .NET 2003.
+
+As of version 4.0, a build with Guile is supported (tested with Guile
+2.0.3). To build with Guile, you will need, in addition to Guile
+itself, its dependency libraries and the pkg-config program. The
+latter is used to figure out which compilation and link switches and
+libraries need to be mentioned on the compiler command lines to
+correctly link with Guile. A Windows port of pkg-config can be found
+on ezwinports site:
+
+ http://sourceforge.net/projects/ezwinports/
+
+The libraries on which Guile depends can vary depending on your
+version and build of Guile. At the very least, the Boehm's GC library
+will be needed, and typically also GNU MP, libffi, libunistring, and
+libtool's libltdl. Whoever built the port of Guile you have should
+also provide you with these dependencies or a URL where to download
+them. A precompiled 32-bit Windows build of Guile is available from
+the ezwinports site mentioned above.
+
+The Windows port of GNU make is maintained jointly by various people.
+It was originally made by Rob Tulloh.
+It is currently maintained by Eli Zaretskii.
+
+
+Do this first, regardless of the build method you choose:
+---------------------------------------------------------
+
+ 1. Edit config.h.W32 to your liking (especially the few shell-related
+ defines near the end, or HAVE_CASE_INSENSITIVE_FS which corresponds
+ to './configure --enable-case-insensitive-file-system'). (We don't
+ recommend to define HAVE_CASE_INSENSITIVE_FS, but you may wish to
+ consider that if you have a lot of files whose names are in upper
+ case, while Makefile rules are written for lower-case versions.)
+
+
+Using make_msvc_net2003.vcproj
+------------------------------
+
+ 2. Open make_msvc_net2003.vcproj in MSVS71 or MSVC71 or any compatible IDE,
+ then build this project as usual. There's also a solution file for
+ Studio 2003.
+
+
+Building with (MinGW-)GCC using build_w32.bat
+---------------------------------------------
+
+ 2. Open a W32 command prompt for your installed (MinGW-)GCC, setup a
+ correct PATH and other environment variables for it, then execute ...
+
+ build_w32.bat gcc
+
+ This produces gnumake.exe in the GccRel directory.
+ If you want a version of GNU make built with debugging enabled,
+ add the --debug option.
+
+ The batch file will probe for Guile installation, and will build
+ gnumake.exe with Guile if it finds it. If you have Guile
+ installed, but want to build Make without Guile support, type
+
+ build_w32.bat --without-guile gcc
+
+
+Building with (MSVC++-)cl using build_w32.bat or NMakefile
+----------------------------------------------------------
+
+ 2. Open a W32 command prompt for your installed (MSVC++-)cl, setup a
+ correct PATH and other environment variables for it (usually via
+ executing vcvars32.bat or vsvars32.bat from the cl-installation,
+ e.g. "%VS71COMNTOOLS%vsvars32.bat"; or using a corresponding start
+ menue entry from the cl-installation), then execute EITHER ...
+
+ build_w32.bat
+
+ This produces gnumake.exe in the WinRel directory.
+ If you want a version of GNU make built with debugging enabled,
+ add the --debug option.
+
+ ... OR ...
+
+ nmake /f NMakefile
+
+ (this produces WinDebug/make.exe and WinRel/make.exe).
+
+ The batch file will probe for Guile installation, and will build
+ gnumake.exe with Guile if it finds it. If you have Guile
+ installed, but want to build Make without Guile support, type
+
+ build_w32.bat --without-guile
+
+-------------------
+-- Notes/Caveats --
+-------------------
+
+GNU make on Windows 32-bit platforms:
+
+ This version of make is ported natively to Windows32 platforms
+ (Windows NT 3.51, Windows NT 4.0, Windows 2000, Windows XP,
+ Windows 95, and Windows 98). It does not rely on any 3rd party
+ software or add-on packages for building. The only thing
+ needed is a Windows compiler. Two compilers supported
+ officially are the MinGW port of GNU GCC, and the various
+ versions of the Microsoft C compiler.
+
+ Do not confuse this port of GNU make with other Windows32 projects
+ which provide a GNU make binary. These are separate projects
+ and are not connected to this port effort.
+
+GNU make and sh.exe:
+
+ This port prefers if you have a working sh.exe somewhere on
+ your system. If you don't have sh.exe, the port falls back to
+ MSDOS mode for launching programs (via a batch file). The
+ MSDOS mode style execution has not been tested that carefully
+ though (The author uses GNU bash as sh.exe).
+
+ There are very few true ports of Bourne shell for NT right now.
+ There is a version of GNU bash available from Cygnus "Cygwin"
+ porting effort (http://www.cygwin.com/).
+ Other possibilities are the MKS version of sh.exe, or building
+ your own with a package like NutCracker (DataFocus) or Portage
+ (Consensys). Also MinGW includes sh (http://mingw.org/).
+
+GNU make and brain-dead shells (BATCH_MODE_ONLY_SHELL):
+
+ Some versions of Bourne shell do not behave well when invoked
+ as 'sh -c' from CreateProcess(). The main problem is they seem
+ to have a hard time handling quoted strings correctly. This can
+ be circumvented by writing commands to be executed to a batch
+ file and then executing the command by calling 'sh file'.
+
+ To work around this difficulty, this version of make supports
+ a batch mode. When BATCH_MODE_ONLY_SHELL is defined at compile
+ time, make forces all command lines to be executed via script
+ files instead of by command line. In this mode you must have a
+ working sh.exe in order to use parallel builds (-j).
+
+ A native Windows32 system with no Bourne shell will also run
+ in batch mode. All command lines will be put into batch files
+ and executed via $(COMSPEC) (%COMSPEC%). However, parallel
+ builds ARE supported with Windows shells (cmd.exe and
+ command.com). See the next section about some peculiarities
+ of parallel builds on Windows.
+
+Support for parallel builds
+
+ Parallel builds (-jN) are supported in this port, with 1
+ limitation: The number of concurrent processes has a hard
+ limit of 64, due to the way this port implements waiting for
+ its subprocesses.
+
+GNU make and Cygnus GNU Windows32 tools:
+
+ Good news! Make now has native support for Cygwin sh. To enable,
+ define the HAVE_CYGWIN_SHELL in config.h and rebuild make
+ from scratch. This version of make tested with B20.1 of Cygwin.
+ Do not define BATCH_MODE_ONLY_SHELL if you use HAVE_CYGWIN_SHELL.
+
+GNU make and the MKS shell:
+
+ There is now semi-official support for the MKS shell. To turn this
+ support on, define HAVE_MKS_SHELL in the config.h.W32 before you
+ build make. Do not define BATCH_MODE_ONLY_SHELL if you turn
+ on HAVE_MKS_SHELL.
+
+GNU make handling of drive letters in pathnames (PATH, vpath, VPATH):
+
+ There is a caveat that should be noted with respect to handling
+ single character pathnames on Windows systems. When colon is
+ used in PATH variables, make tries to be smart about knowing when
+ you are using colon as a separator versus colon as a drive
+ letter. Unfortunately, something as simple as the string 'x:/'
+ could be interpreted 2 ways: (x and /) or (x:/).
+
+ Make chooses to interpret a letter plus colon (e.g. x:/) as a
+ drive letter pathname. If it is necessary to use single
+ character directories in paths (VPATH, vpath, Path, PATH), the
+ user must do one of two things:
+
+ a. Use semicolon as the separator to disambiguate colon. For
+ example use 'x;/' if you want to say 'x' and '/' are
+ separate components.
+
+ b. Qualify the directory name so that there is more than
+ one character in the path(s) used. For example, none
+ of these settings are ambiguous:
+
+ ./x:./y
+ /some/path/x:/some/path/y
+ x:/some/path/x:x:/some/path/y
+
+ Please note that you are free to mix colon and semi-colon in the
+ specification of paths. Make is able to figure out the intended
+ result and convert the paths internally to the format needed
+ when interacting with the operating system, providing the path
+ is not within quotes, e.g. "x:/test/test.c".
+
+ You are encouraged to use colon as the separator character.
+ This should ease the pain of deciding how to handle various path
+ problems which exist between platforms. If colon is used on
+ both Unix and Windows systems, then no ifdef'ing will be
+ necessary in the makefile source.
+
+GNU make test suite:
+
+ I verified all functionality with a slightly modified version
+ of make-test-%VERSION% (modifications to get test suite to run
+ on Windows NT). All tests pass in an environment that includes
+ sh.exe. Tests were performed on both Windows NT and Windows 95.
+
+Pathnames and white space:
+
+ Unlike Unix, Windows 95/NT systems encourage pathnames which
+ contain white space (e.g. C:\Program Files\). These sorts of
+ pathnames are valid on Unix too, but are never encouraged.
+ There is at least one place in make (VPATH/vpath handling) where
+ paths containing white space will simply not work. There may be
+ others too. I chose to not try and port make in such a way so
+ that these sorts of paths could be handled. I offer these
+ suggestions as workarounds:
+
+ 1. Use 8.3 notation. i.e. "x:/long~1/", which is actually
+ "x:\longpathtest". Type "dir /x" to view these filenames
+ within the cmd.exe shell.
+ 2. Rename the directory so it does not contain white space.
+
+ If you are unhappy with this choice, this is free software
+ and you are free to take a crack at making this work. The code
+ in w32/pathstuff.c and vpath.c would be the places to start.
+
+Pathnames and Case insensitivity:
+
+ Unlike Unix, Windows 95/NT systems are case insensitive but case
+ preserving. For example if you tell the file system to create a
+ file named "Target", it will preserve the case. Subsequent access to
+ the file with other case permutations will succeed (i.e. opening a
+ file named "target" or "TARGET" will open the file "Target").
+
+ By default, GNU make retains its case sensitivity when comparing
+ target names and existing files or directories. It can be
+ configured, however, into a case preserving and case insensitive
+ mode by adding a define for HAVE_CASE_INSENSITIVE_FS to
+ config.h.W32.
+
+ For example, the following makefile will create a file named
+ Target in the directory subdir which will subsequently be used
+ to satisfy the dependency of SUBDIR/DepTarget on SubDir/TARGET.
+ Without HAVE_CASE_INSENSITIVE_FS configured, the dependency link
+ will not be made:
+
+ subdir/Target:
+ touch $@
+
+ SUBDIR/DepTarget: SubDir/TARGET
+ cp $^ $@
+
+ Reliance on this behavior also eliminates the ability of GNU make
+ to use case in comparison of matching rules. For example, it is
+ not possible to set up a C++ rule using %.C that is different
+ than a C rule using %.c. GNU make will consider these to be the
+ same rule and will issue a warning.
+
+SAMBA/NTFS/VFAT:
+
+ I have not had any success building the debug version of this
+ package using SAMBA as my file server. The reason seems to be
+ related to the way VC++ 4.0 changes the case name of the pdb
+ filename it is passed on the command line. It seems to change
+ the name always to to lower case. I contend that the VC++
+ compiler should not change the casename of files that are passed
+ as arguments on the command line. I don't think this was a
+ problem in MSVC 2.x, but I know it is a problem in MSVC 4.x.
+
+ The package builds fine on VFAT and NTFS filesystems.
+
+ Most all of the development I have done to date has been using
+ NTFS and long file names. I have not done any considerable work
+ under VFAT. VFAT users may wish to be aware that this port of
+ make does respect case sensitivity.
+
+FAT:
+
+ Version 3.76 added support for FAT filesystems. Make works
+ around some difficulties with stat'ing of files and caching of
+ filenames and directories internally.
+
+Bug reports:
+
+ Please submit bugs via the normal bug reporting mechanism which
+ is described in the GNU make manual and the base README.
+
+-------------------------------------------------------------------------------
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.customs b/README.customs
new file mode 100644
index 0000000..67e1252
--- /dev/null
+++ b/README.customs
@@ -0,0 +1,112 @@
+ -*-indented-text-*-
+
+GNU make can utilize the Customs library, distributed with Pmake, to
+provide builds distributed across multiple hosts.
+
+In order to utilize this capability, you must first download and build
+the Customs library. It is contained in the Pmake distribution, which
+can be obtained at:
+
+ ftp://ftp.icsi.berkeley.edu/pub/ai/stolcke/software/
+
+This integration was tested (superficially) with Pmake 2.1.33.
+
+
+BUILDING CUSTOMS
+----------------
+
+First, build pmake and Customs. You need to build pmake first, because
+Customs require pmake to build. Unfortunately, this is not trivial;
+please see the pmake and Customs documentation for details. The best
+place to look for instructions is in the pmake-2.1.33/INSTALL file.
+
+Note that the 2.1.33 Pmake distribution comes with a set of patches to
+GNU make, distributed in the pmake-2.1.33/etc/gnumake/ directory. These
+patches are based on GNU make 3.75 (there are patches for earlier
+versions of GNU make, also). The parts of this patchfile which relate
+directly to Customs support have already been incorporated into this
+version of GNU make, so you should _NOT_ apply the patch file.
+
+However, there are a few non-Customs specific (as far as I could tell)
+changes here which are not incorporated (for example, the modification
+to try expanding -lfoo to libfoo.so). If you rely on these changes
+you'll need to re-apply them by hand.
+
+Install the Customs library and header files according to the
+documentation. You should also install the man pages (contrary to
+comments in the documentation, they weren't installed automatically for
+me; I had to cd to the 'pmake-2.1.33/doc' directory and run 'pmake
+install' there directly).
+
+
+BUILDING GNU MAKE
+-----------------
+
+Once you've installed Customs, you can build GNU make to use it. When
+configuring GNU make, merely use the '--with-customs=DIR' option.
+Provide the directory containing the 'lib' and 'include/customs'
+subdirectories as DIR. For example, if you installed the customs
+library in /usr/local/lib and the headers in /usr/local/include/customs,
+then you'd pass '--with-customs=/usr/local' as an option to configure.
+
+Run make (or use build.sh) normally to build GNU make as described in
+the INSTALL file.
+
+See the documentation for Customs for information on starting and
+configuring Customs.
+
+
+INVOKING CUSTOMS-IZED GNU MAKE
+-----------------------------
+
+One thing you should be aware of is that the default build environment
+for Customs requires root permissions. Practically, this means that GNU
+make must be installed setuid root to use Customs.
+
+If you don't want to do this, you can build Customs such that root
+permissions are not necessary. Andreas Stolcke <stolcke@speech.sri.com>
+writes:
+
+ > pmake, gnumake or any other customs client program is not required to
+ > be suid root if customs was compiled WITHOUT the USE_RESERVED_PORTS
+ > option in customs/config.h. Make sure the "customs" service in
+ > /etc/services is defined accordingly (port 8231 instead of 1001).
+
+ > Not using USE_RESERVED_PORTS means that a user with programming
+ > skills could impersonate another user by writing a fake customs
+ > client that pretends to be someone other than himself. See the
+ > discussion in etc/SECURITY.
+
+
+PROBLEMS
+--------
+
+SunOS 4.1.x:
+ The customs/sprite.h header file #includes the <malloc.h> header
+ files; this conflicts with GNU make's configuration so you'll get a
+ compile error if you use GCC (or any other ANSI-capable C compiler).
+
+ I commented out the #include in sprite.h:107:
+
+ #if defined(sun) || defined(ultrix) || defined(hpux) || defined(sgi)
+ /* #include <malloc.h> */
+ #else
+
+ YMMV.
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1998-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.git b/README.git
new file mode 100644
index 0000000..41a7675
--- /dev/null
+++ b/README.git
@@ -0,0 +1,292 @@
+ -*-text-*-
+
+-------------------------------------------------------------------------------
+Copyright (C) 2002-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+-------------------------------------------------------------------------------
+
+Obtaining Git Code
+------------------
+
+This seems redundant, since if you're reading this you most likely have
+already performed this step; however, for completeness, you can obtain the GNU
+make source code via Git from the FSF's Savannah project
+<http://savannah.gnu.org/projects/make/>:
+
+ $ git clone git://git.savannah.gnu.org/make.git
+
+
+Changes using Git
+-----------------
+
+For non-developers, you can continue to provide patches as before, or if you
+make a public repository I can pull from that if you prefer.
+
+Starting with GNU make 4.0 we no longer keep a separate ChangeLog file in
+source control. We use the Gnulib git-to-changelog conversion script to
+convert the Git comments into ChangeLog-style entries for release. As a
+result, please format your Git comments carefully so they will look clean
+after conversion. In particular, each line of your comment will have a TAB
+added before it so be sure your comment lines are not longer than 72
+characters; prefer 70 or less. Please use standard ChangeLog formats for
+your commit messages (sans the leading TAB of course).
+
+Rule #1: Don't rewrite pushed history (don't use "git push --force").
+
+Typical simple workflow might be:
+
+ * Edit files
+ * Use "git status" and "git diff" to verify your changes
+ * Use "git add" to stage the changes you want to make
+ * Use "git commit" to commit the staged changes to your local repository
+ * Use "git pull" to accept & merge new changes from the Savannah repository
+ * Use "git push" to push your commits back to the Savannah repository
+
+For Emacs users, there are many options for Git integration but I strongly
+recommend the Magit package: http://www.emacswiki.org/emacs/Magit
+It makes the workflow much clearer, and has advanced features such as
+constructing multiple commits from various files and even from different
+diff chunks in the same file. There is a video available which helps a lot.
+
+
+Coding Standards
+----------------
+
+GNU make code adheres to the GNU Coding Standards. Please use only spaces and
+no TAB characters in source code.
+
+Additionally, GNU make is a foundational bootstrap package for the GNU
+project; as such it is very conservative about language features it expects.
+It should build with any C compiler conforming to the ANSI C89 / ISO C90
+standard.
+
+
+Building From Git
+-----------------
+
+To build GNU make from Git, you will need Autoconf, Automake, and
+Gettext, and any tools that those utilities require (GNU m4, Perl,
+etc.). See the configure.ac file to find the minimum versions of each
+of these tools. You will also need a copy of wget and gnulib.
+
+When building from Git you must build in the source directory: "VPATH
+builds" from remote directories are not supported. Once you've created
+a distribution, of course, you can unpack it and do a VPATH build from
+there.
+
+After checking out the code, you will need to perform these steps to get
+to the point where you can run "make".
+
+ 1) $ autoreconf -i
+
+ This rebuilds all the things that need rebuilding, installing
+ missing files as symbolic links.
+
+ You may get warnings here about missing files like README, etc.
+ Ignore them, they are harmless.
+
+ 2) $ ./configure
+
+ Generate a Makefile
+
+ 3) $ make update
+
+ Use wget to retrieve various other files that GNU make relies on,
+ but does not keep in its own source tree.
+
+ NB: You may need GNU make to correctly perform this step; if you use
+ a platform-local make you may get problems with missing files in doc/.
+
+At this point you have successfully brought your Git copy of the GNU
+make source directory up to the point where it can be treated
+more-or-less like the official package you would get from ftp.gnu.org.
+That is, you can just run:
+
+ $ make && make check && make install
+
+to build and install GNU make.
+
+
+Windows builds from Git
+-----------------------
+
+If you have a UNIX emulation like CYGWIN you can opt to run the general
+build procedure above; it will work. Be sure to read
+README.W32.template for information on options you might want to use
+when running ./configure.
+
+If you can't or don't want to do that, then rename the file
+README.W32.template to README.W32 and follow those instructions.
+
+
+Creating a Package
+------------------
+
+Once you have performed the above steps (including the configuration and
+build) you can create a GNU make package. This is very simple, just
+run:
+
+ $ make dist-gzip
+
+and, if you like:
+
+ $ make dist-bzip2
+
+Even better, you should run this:
+
+ $ make distcheck
+
+Which will build both .gz and .bz2 package files, then unpack them into
+a temporary location, try to build them, and repack them, verifying that
+everything works, you get the same results, _and_ no extraneous files
+are left over after the "distclean" rule--whew!! Now, _that_ is why
+converting to Automake is worth the trouble! A big "huzzah!" to Tom
+T. and the AutoToolers!
+
+
+Steps to Release
+----------------
+
+Here are the things that need to be done (in more or less this order)
+before making an official release. If something breaks such that you need to
+change code, be sure to start over again sufficiently that everything is
+consistent (that's why we don't finalize the Git tag, etc. until the end).
+
+ * Update the configure.ac file with the new release number.
+ * Update the EDITION value in the doc/make.texi file.
+ * Update the NEWS file with the release number and date.
+ * Ensure the Savannah bug list URL in the NEWS file uses the correct
+ "Fixed Release" ID number.
+ * Run "make distcheck" to be sure it all works.
+ * Run "make check-alt-config" to be sure alternative configurations work
+ * Run "make update-makeweb" to get a copy of the GNU make web pages
+ * Run "make update-gnuweb" to get a copy of the GNU website boilerplate pages
+ * Update the web page boilerplate if necessary:
+ ../gnu-www/www/server/standards/patch-from-parent ../make-web/make.html \
+ ../gnu-www/www/server/standards/boilerplate.html
+ * Run "make gendocs" (requires gnulib) to generate the manual files for
+ the GNU make web pages.
+ * Follow the directions from gendocs for the web page repository
+ * run "make tag-release" to create a Git tag for the release
+ * Push everything:
+ git push --tags origin master
+
+Manage the Savannah project for GNU make:
+
+ >>> This is only for real releases, not release candidate builds <<<
+
+ * In Savannah modify the "Value", "Rank", and "Description" values for the
+ current "SCM" entry in both "Component Version" and "Fix Release" fields
+ to refer to the new release. The "Rank" field should be 10 less than the
+ previous release so it orders properly.
+ * In Savannah create a new entry for the "Component Version" and "Fix
+ Release" fields:
+ - Value: SCM
+ - Rank: 20
+ - Descr: Issues found in code retrieved from Source Code Management (Git), rather than a distributed version. Please include the SHA you are working with.
+
+ - Descr: Fixed in Source Code Management (Git). The fix will be included in the next release of GNU make.
+
+Start the next release:
+
+ * Update configure.ac and add a ".90" to the release number.
+ * Update the NEWS file with a new section for the release / date.
+ * Update the Savannah URL for the bugs fixed in the NEWS section.
+
+
+Publishing a Package
+--------------------
+
+In order to publish a package on the FSF FTP site, either the release
+site ftp://ftp.gnu.org, or the prerelease site ftp://alpha.gnu.org, you
+first need to have my GPG private key and my passphrase to unlock it.
+And, you can't have them! So there! But, just so I remember here's
+what to do:
+
+ Make sure the "Steps to Release" are complete and committed and tagged.
+
+ git clone git://git.savannah.gnu.org/make.git make-release
+
+ cd make-release
+
+ <run the commands above to build the release>
+
+ make upload-alpha # for alpha.gnu.org (pre-releases)
+ -OR-
+ make upload-ftp # for ftp.gnu.org (official releases)
+
+Depending on your distribution (whether GnuPG is integrated with your keyring
+etc.) it will either pop up a window asking for your GPG key passphrase one
+time, or else it will use the CLI to ask for the GPG passphrase _THREE_ times.
+Sigh.
+
+
+For both final releases and pre-releases, send an email with the URL of
+the package to the GNU translation robot to allow the translators to
+work on it:
+
+ <coordinator@translationproject.org>
+
+
+Where to Announce
+-----------------
+
+Create the announcement in a text file, using 'git shortlog',
+then sign it with GPG:
+
+ gpg --clearsign <announcement.txt>
+
+Or, use your mail client's PGP/GPG signing capabilities.
+
+Announce the release:
+
+ * For release candidate builds:
+ To: bug-make@gnu.org
+ CC: coordinator@translationproject.org
+ BCC: help-make@gnu.org, make-w32@gnu.org, make-alpha@gnu.org
+
+ * For release builds
+ To: info-gnu@gnu.org, bug-make@gnu.org
+ CC: coordinator@translationproject.org
+ BCC: help-make@gnu.org, make-w32@gnu.org, make-alpha@gnu.org
+
+ * Add a news item to the Savannah project site.
+ * Add an update to freecode.com (nee freshmeat.net)
+
+
+Appendix A - For The Brave
+--------------------------
+
+For those of you who trust me implicitly, or are just brave (or
+foolhardy), here is a canned sequence of commands to build a GNU make
+distribution package from a virgin Git source checkout (assuming all the
+prerequisites are available of course).
+
+This list is eminently suitable for a quick swipe o' the mouse and a
+swift click o' mouse-2 into an xterm. Go for it!
+
+autoreconf -i
+./configure
+make update
+make
+make check
+
+Or, for a debugging version:
+
+autoreconf -i && ./configure CFLAGS=-g && make update && make && make check
+
+Or, all-in-one:
+
+autoreconf -i && ./configure && make update && make && make check
diff --git a/README.template b/README.template
new file mode 100644
index 0000000..7739faa
--- /dev/null
+++ b/README.template
@@ -0,0 +1,178 @@
+This directory contains the %VERSION% release of GNU Make.
+
+See the file NEWS for the user-visible changes from previous releases.
+In addition, there have been bugs fixed.
+
+Please check the system-specific notes below for any caveats related to
+your operating system.
+
+For general building and installation instructions, see the file INSTALL.
+
+If you need to build GNU Make and have no other 'make' program to use,
+you can use the shell script 'build.sh' instead. To do this, first run
+'configure' as described in INSTALL. Then, instead of typing 'make' to
+build the program, type 'sh build.sh'. This should compile the program
+in the current directory. Then you will have a Make program that you can
+use for './make install', or whatever else.
+
+Some systems' Make programs are broken and cannot process the Makefile for
+GNU Make. If you get errors from your system's Make when building GNU
+Make, try using 'build.sh' instead.
+
+
+GNU Make is free software. See the file COPYING for copying conditions.
+GNU Make is copyright by the Free Software Foundation. Copyright notices
+condense sequential years into a range; e.g. "1987-1994" means all years
+from 1987 to 1994 inclusive.
+
+Downloading
+-----------
+
+GNU Make can be obtained in many different ways. See a description here:
+
+ http://www.gnu.org/software/software.html
+
+
+Documentation
+-------------
+
+GNU make is fully documented in the GNU Make manual, which is contained
+in this distribution as the file make.texinfo. You can also find
+on-line and preformatted (PostScript and DVI) versions at the FSF's web
+site. There is information there about ordering hardcopy documentation.
+
+ http://www.gnu.org/
+ http://www.gnu.org/doc/doc.html
+ http://www.gnu.org/manual/manual.html
+
+
+Development
+-----------
+
+GNU Make development is hosted by Savannah, the FSF's online development
+management tool. Savannah is here:
+
+ http://savannah.gnu.org
+
+And the GNU Make development page is here:
+
+ http://savannah.gnu.org/projects/make/
+
+You can find most information concerning the development of GNU Make at
+this site.
+
+
+Bug Reporting
+-------------
+
+You can send GNU make bug reports to <bug-make@gnu.org>. Please see the
+section of the GNU make manual entitled 'Problems and Bugs' for
+information on submitting useful and complete bug reports.
+
+You can also use the online bug tracking system in the Savannah GNU Make
+project to submit new problem reports or search for existing ones:
+
+ http://savannah.gnu.org/bugs/?group=make
+
+If you need help using GNU make, try these forums:
+
+ help-make@gnu.org
+ help-utils@gnu.org
+ news:gnu.utils.help
+ news:gnu.utils.bug
+
+
+Git Access
+----------
+
+The GNU make source repository is available via Git from the
+GNU Savannah Git server; look here for details:
+
+ http://savannah.gnu.org/git/?group=make
+
+Please note: you won't be able to build GNU make from Git without
+installing appropriate maintainer's tools, such as GNU m4, automake,
+autoconf, Perl, GNU make, and GCC. See the README.git file for hints on
+how to build GNU make once these tools are available. We make no
+guarantees about the contents or quality of the latest code in the Git
+repository: it is not unheard of for code that is known to be broken to
+be checked in. Use at your own risk.
+
+
+System-specific Notes
+---------------------
+
+It has been reported that the XLC 1.2 compiler on AIX 3.2 is buggy such
+that if you compile make with 'cc -O' on AIX 3.2, it will not work
+correctly. It is said that using 'cc' without '-O' does work.
+
+The standard /bin/sh on SunOS 4.1.3_U1 and 4.1.4 is broken and cannot be
+used to configure GNU make. Please install a different shell such as
+bash or pdksh in order to run "configure". See this message for more
+information:
+ http://mail.gnu.org/archive/html/bug-autoconf/2003-10/msg00190.html
+
+One area that is often a problem in configuration and porting is the code
+to check the system's current load average. To make it easier to test and
+debug this code, you can do 'make check-loadavg' to see if it works
+properly on your system. (You must run 'configure' beforehand, but you
+need not build Make itself to run this test.)
+
+Another potential source of porting problems is the support for large
+files (LFS) in configure for those operating systems that provide it.
+Please report any bugs that you find in this area. If you run into
+difficulties, then as a workaround you should be able to disable LFS by
+adding the '--disable-largefile' option to the 'configure' script.
+
+On systems that support micro- and nano-second timestamp values and
+where stat(2) provides this information, GNU make will use it when
+comparing timestamps to get the most accurate possible result. However,
+note that many current implementations of tools that *set* timestamps do
+not preserve micro- or nano-second granularity. This means that "cp -p"
+and other similar tools (tar, etc.) may not exactly duplicate timestamps
+with micro- and nano-second granularity on some systems. If your build
+system contains rules that depend on proper behavior of tools like "cp
+-p", you should consider using the .LOW_RESOLUTION_TIME pseudo-target to
+force make to treat them properly. See the manual for details.
+
+
+Ports
+-----
+
+ - See README.customs for details on integrating GNU make with the
+ Customs distributed build environment from the Pmake distribution.
+
+ - See README.VMS for details about GNU Make on OpenVMS.
+
+ - See README.Amiga for details about GNU Make on AmigaDOS.
+
+ - See README.W32 for details about GNU Make on Windows NT, 95, or 98.
+
+ - See README.DOS for compilation instructions on MS-DOS and MS-Windows
+ using DJGPP tools.
+
+ A precompiled binary of the MSDOS port of GNU Make is available as part
+ of DJGPP; see the WWW page http://www.delorie.com/djgpp/ for more
+ information.
+
+Please note there are two _separate_ ports of GNU make for Microsoft
+systems: a native Windows tool built with (for example) MSVC or Cygwin,
+and a DOS-based tool built with DJGPP. Please be sure you are looking
+at the right README!
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/SCOPTIONS b/SCOPTIONS
new file mode 100644
index 0000000..f89daae
--- /dev/null
+++ b/SCOPTIONS
@@ -0,0 +1,13 @@
+ERRORREXX
+OPTIMIZE
+NOVERSION
+OPTIMIZERTIME
+OPTIMIZERALIAS
+DEFINE INCLUDEDIR="include:"
+DEFINE LIBDIR="lib:"
+DEFINE NO_ALLOCA
+DEFINE NO_FLOAT
+DEFINE NO_ARCHIVES
+IGNORE=161
+IGNORE=100
+STARTUP=cres
diff --git a/SMakefile.template b/SMakefile.template
new file mode 100644
index 0000000..1b60d85
--- /dev/null
+++ b/SMakefile.template
@@ -0,0 +1,218 @@
+# -*-Makefile-*- for building GNU make with smake
+#
+# NOTE: If you have no 'make' program at all to process this makefile,
+# run 'build.sh' instead.
+#
+# Copyright (C) 1995-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+#
+# Makefile for GNU Make
+#
+
+# Ultrix 2.2 make doesn't expand the value of VPATH.
+VPATH = /make-%VERSION%/
+# This must repeat the value, because configure will remove 'VPATH = .'.
+srcdir = /make-%VERSION%/
+
+CC = sc
+RM = delete
+MAKE = smake
+
+CFLAGS =
+CPPFLAGS =
+LDFLAGS =
+
+# Define these for your system as follows:
+# -DNO_ARCHIVES To disable 'ar' archive support.
+# -DNO_FLOAT To avoid using floating-point numbers.
+# -DENUM_BITFIELDS If the compiler isn't GCC but groks enum foo:2.
+# Some compilers apparently accept this
+# without complaint but produce losing code,
+# so beware.
+# NeXT 1.0a uses an old version of GCC, which required -D__inline=inline.
+# See also 'config.h'.
+defines =
+
+# Which flavor of remote job execution support to use.
+# The code is found in 'remote-$(REMOTE).c'.
+REMOTE = stub
+
+# If you are using the GNU C library, or have the GNU getopt functions in
+# your C library, you can comment these out.
+GETOPT = getopt.o getopt1.o
+GETOPT_SRC = $(srcdir)getopt.c $(srcdir)getopt1.c $(srcdir)getopt.h
+
+# If you are using the GNU C library, or have the GNU glob functions in
+# your C library, you can comment this out. GNU make uses special hooks
+# into the glob functions to be more efficient (by using make's directory
+# cache for globbing), so you must use the GNU functions even if your
+# system's C library has the 1003.2 glob functions already. Also, the glob
+# functions in the AIX and HPUX C libraries are said to be buggy.
+GLOB = Lib glob/glob.lib
+
+# If your system doesn't have alloca, or the one provided is bad, define this.
+ALLOCA = alloca.o
+ALLOCA_SRC = $(srcdir)alloca.c
+
+# If your system needs extra libraries loaded in, define them here.
+# System V probably need -lPW for alloca. HP-UX 7.0's alloca in
+# libPW.a is broken on HP9000s300 and HP9000s400 machines. Use
+# alloca.c instead on those machines.
+LOADLIBES =
+
+# Any extra object files your system needs.
+extras = amiga.o
+
+# Common prefix for machine-independent installed files.
+prefix =
+# Common prefix for machine-dependent installed files.
+exec_prefix =
+
+# Directory to install 'make' in.
+bindir = sc:c
+# Directory to find libraries in for '-lXXX'.
+libdir = lib:
+# Directory to search by default for included makefiles.
+includedir = include:
+# Directory to install the Info files in.
+infodir = doc:
+# Directory to install the man page in.
+mandir = t:
+# Number to put on the man page filename.
+manext = 1
+# Prefix to put on installed 'make' binary file name.
+binprefix =
+# Prefix to put on installed 'make' man page file name.
+manprefix = $(binprefix)
+
+# Whether or not make needs to be installed setgid.
+# The value should be either 'true' or 'false'.
+# On many systems, the getloadavg function (used to implement the '-l'
+# switch) will not work unless make is installed setgid kmem.
+install_setgid = false
+# Install make setgid to this group so it can read /dev/kmem.
+group = sys
+
+# Program to install 'make'.
+INSTALL_PROGRAM = copy
+# Program to install the man page.
+INSTALL_DATA = copy
+# Generic install program.
+INSTALL = copy
+
+# Program to format Texinfo source into Info files.
+MAKEINFO = makeinfo
+# Program to format Texinfo source into DVI files.
+TEXI2DVI = texi2dvi
+
+# Programs to make tags files.
+ETAGS = etags -w
+CTAGS = ctags -w
+
+#guile = guile.o
+
+objs = commands.o job.o dir.o file.o misc.o main.o read.o remake.o \
+ rule.o implicit.o default.o variable.o expand.o function.o \
+ vpath.o version.o ar.o arscan.o signame.o strcache.o hash.o \
+ output.o remote-$(REMOTE).o $(GLOB) $(GETOPT) $(ALLOCA) \
+ $(extras) $(guile)
+
+srcs = $(srcdir)commands.c $(srcdir)job.c $(srcdir)dir.c \
+ $(srcdir)file.c $(srcdir)getloadavg.c $(srcdir)misc.c \
+ $(srcdir)main.c $(srcdir)read.c $(srcdir)remake.c \
+ $(srcdir)rule.c $(srcdir)implicit.c $(srcdir)default.c \
+ $(srcdir)variable.c $(srcdir)expand.c $(srcdir)function.c \
+ $(srcdir)vpath.c $(srcdir)version.c $(srcdir)hash.c \
+ $(srcdir)guile.c $(srcdir)remote-$(REMOTE).c \
+ $(srcdir)ar.c $(srcdir)arscan.c $(srcdir)strcache.c \
+ $(srcdir)signame.c $(srcdir)signame.h $(GETOPT_SRC) \
+ $(srcdir)commands.h $(srcdir)dep.h $(srcdir)file.h \
+ $(srcdir)job.h $(srcdir)makeint.h $(srcdir)rule.h \
+ $(srcdir)output.c $(srcdir)output.h \
+ $(srcdir)variable.h $(ALLOCA_SRC) $(srcdir)config.h.in
+
+
+.SUFFIXES:
+.SUFFIXES: .o .c .h .ps .dvi .info .texinfo
+
+all: make
+info: make.info
+dvi: make.dvi
+# Some makes apparently use .PHONY as the default goal if it is before 'all'.
+.PHONY: all check info dvi
+
+make.info: make.texinfo
+ $(MAKEINFO) -I$(srcdir) $(srcdir)make.texinfo -o make.info
+
+make.dvi: make.texinfo
+ $(TEXI2DVI) $(srcdir)make.texinfo
+
+make.ps: make.dvi
+ dvi2ps make.dvi > make.ps
+
+make: $(objs) glob/glob.lib
+ $(CC) Link $(LDFLAGS) $(objs) $(LOADLIBES) To make.new
+ -delete quiet make
+ rename make.new make
+
+# -I. is needed to find config.h in the build directory.
+.c.o:
+ $(CC) $(defines) IDir "" IDir $(srcdir)glob \
+ $(CPPFLAGS) $(CFLAGS) $< $(OUTPUT_OPTION)
+
+glob/glob.lib:
+ execute <<
+ cd glob
+ smake
+<
+
+tagsrcs = $(srcs) $(srcdir)remote-*.c
+TAGS: $(tagsrcs)
+ $(ETAGS) $(tagsrcs)
+tags: $(tagsrcs)
+ $(CTAGS) $(tagsrcs)
+
+.PHONY: install installdirs
+install:
+ copy make sc:c
+
+loadavg: loadavg.c config.h
+ $(CC) $(defines) -DTEST -I. -I$(srcdir) $(CFLAGS) $(LDFLAGS) \
+ loadavg.c $(LOADLIBES) -o $@
+
+clean: glob-clean
+ -$(RM) -f make loadavg *.o core make.dvi
+
+distclean: clean glob-realclean
+ -$(RM) -f Makefile config.h config.status build.sh
+ -$(RM) -f config.log config.cache
+ -$(RM) -f TAGS tags
+ -$(RM) -f make.?? make.??s make.log make.toc make.*aux
+ -$(RM) -f loadavg.c
+
+realclean: distclean
+ -$(RM) -f make.info*
+
+mostlyclean: clean
+
+.PHONY: glob-clean glob-realclean
+
+glob-clean glob-realclean:
+ execute <<
+ cd glob
+ smake $@
+<
diff --git a/TODO.private b/TODO.private
new file mode 100644
index 0000000..a56827a
--- /dev/null
+++ b/TODO.private
@@ -0,0 +1,117 @@
+ -*-Indented-Text-*-
+GNU Make TODO List
+------------------
+
+This list comes both from the authors and from users of GNU make.
+
+They are listed in no particular order!
+
+Also, I don't guarantee that all of them will be ultimately deemed "good
+ideas" and implemented. These are just the ones that, at first blush,
+seem to have some merit (and that I can remember).
+
+However, if you see something here you really, really want, speak up.
+All other things being equal, I will tend to implement things that seem
+to maximize user satisfaction.
+
+If you want to implement some of them yourself, barring the ones I've
+marked below, have at it! Please contact me first to let me know you're
+working on it, and give me some info about the design--and, critically,
+information about any user-visible syntax change, etc.
+
+
+The Top Item
+------------
+
+If you know perl (or want to learn DejaGNU or similar), the number one
+priority on my list of things I don't have time to do right now is
+fixing up the GNU make test suite. Most importantly it needs to be made
+"parallelizable", so more than one regression can run at the same time
+(essentially, make the "work" directory local). Also, the CWD during
+the test should be in the work directory or, better, a test-specific
+temporary directory so each test gets a new directory; right now
+sometimes tests leak files into the main directory which causes
+subsequent tests to fail (some tests may need to be tweaked). Beyond
+that, any cleanup done to make writing, reading, or handling tests
+simpler would be great! Please feel free to make whatever changes you
+like to the current tests, given some high-level goals, and that you'll
+port the current tests to whatever you do :).
+
+
+The Rest of the List
+--------------------
+
+ 1) Option to check more than timestamps to determine if targets have
+ changed. This is also a very big one. It's _close_ to my plate :),
+ and I have very definite ideas about how I would like it done.
+ Please pick something else unless you must have this feature. If
+ you try it, please work _extremely_ closely with me on it.
+
+ 1a) Possibly a special case of this is the .KEEP_STATE feature of Sun's
+ make. Some great folks at W U. in Canada did an implementation of
+ this for a class project. Their approach is reasonable and
+ workable, but doesn't really fit into my ideas for #2. Maybe
+ that's OK. I have paperwork for their work so if you want to do
+ this one talk to me to get what they've already done.
+
+ [K R Praveen <praveen@cair.res.in>]
+
+ 2) Currently you can use "%.foo %.bar : %.baz" to mean that one
+ invocation of the rule builds both targets. GNU make needs a way to
+ do that for explicit rules, too. I heard a rumor that some versions
+ of make all you to say "a.foo + a.bar : a.baz" to do this (i.e., a
+ "+" means one invocation builds both). Don't know if this is the
+ best syntax or not... what if you say "a.foo + a.bar a.bam : a.baz";
+ what does that mean?
+
+ 3) Multi-token pattern rule matching (allow %1/%2.c : %1/obj/%2.o,
+ etc., or something like that). Maybe using regex?
+
+ 4) Provide a .TARGETS variable, containing the names of the targets
+ defined in the makefile.
+
+ Actually, I now think a $(targets ...) function, at least, might be
+ better than a MAKETARGETS variable. The argument would be types of
+ targets to list: "phony" is the most useful one. I suppose
+ "default" might also be useful. Maybe some others; check the
+ bitfields to see what might be handy.
+
+ 5) Some sort of operating-system independent way of handling paths
+ would be outstanding, so makefiles can be written for UNIX, VMS,
+ DOS, MS-Windows, Amiga, etc. with a minimum of specialization.
+
+ Or, perhaps related/instead of, some sort of meta-quoting syntax so
+ make can deal with filenames containing spaces, colons, etc. I
+ dunno, maybe something like $[...]? This may well not be worth
+ doing until #1 is done.
+
+ 6) Right now the .PRECIOUS, .INTERMEDIATE, and .SECONDARY
+ pseudo-targets have different capabilities. For example, .PRECIOUS
+ can take a "%", the others can't. Etc. These should all work the
+ same, insofar as that makes sense.
+
+ 7) Improved debugging/logging/etc. capabilities. Part of this is done:
+ I introduced a number of debugging enhancements. Tim Magill is (I
+ think) looking into options to control output more selectively.
+ One thing I want to do in debugging is add a flag to allow debugging
+ of variables as they're expanded (!). This would be incredibly
+ verbose, but could be invaluable when nothing else seems to work and
+ you just can't figure it out. The way variables are expanded now
+ means this isn't 100% trivial, but it probably won't be hard.
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1997-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..0ac68aa
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,132 @@
+dnl acinclude.m4 -- Extra macros needed for GNU make.
+dnl
+dnl Automake will incorporate this into its generated aclocal.m4.
+dnl Copyright (C) 1998-2016 Free Software Foundation, Inc.
+dnl This file is part of GNU Make.
+dnl
+dnl GNU Make is free software; you can redistribute it and/or modify it under
+dnl the terms of the GNU General Public License as published by the Free
+dnl Software Foundation; either version 3 of the License, or (at your option)
+dnl any later version.
+dnl
+dnl GNU Make is distributed in the hope that it will be useful, but WITHOUT
+dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+dnl more details.
+dnl
+dnl You should have received a copy of the GNU General Public License along
+dnl with this program. If not, see <http://www.gnu.org/licenses/>.
+
+dnl ---------------------------------------------------------------------------
+dnl Got this from the lynx 2.8 distribution.
+dnl by T.E.Dickey <dickey@clark.net>
+dnl and Jim Spath <jspath@mail.bcpl.lib.md.us>
+dnl and Philippe De Muyter <phdm@macqel.be>
+dnl
+dnl Created: 1997/1/28
+dnl Updated: 1997/12/23
+dnl ---------------------------------------------------------------------------
+dnl After checking for functions in the default $LIBS, make a further check
+dnl for the functions that are netlib-related (these aren't always in the
+dnl libc, etc., and have to be handled specially because there are conflicting
+dnl and broken implementations.
+dnl Common library requirements (in order):
+dnl -lresolv -lsocket -lnsl
+dnl -lnsl -lsocket
+dnl -lsocket
+dnl -lbsd
+AC_DEFUN([CF_NETLIBS],[
+cf_test_netlibs=no
+AC_MSG_CHECKING(for network libraries)
+AC_CACHE_VAL(cf_cv_netlibs,[
+AC_MSG_RESULT(working...)
+cf_cv_netlibs=""
+cf_test_netlibs=yes
+AC_CHECK_FUNCS(gethostname,,[
+ CF_RECHECK_FUNC(gethostname,nsl,cf_cv_netlibs,[
+ CF_RECHECK_FUNC(gethostname,socket,cf_cv_netlibs)])])
+#
+# FIXME: sequent needs this library (i.e., -lsocket -linet -lnsl), but
+# I don't know the entrypoints - 97/7/22 TD
+AC_CHECK_LIB(inet,main,cf_cv_netlibs="-linet $cf_cv_netlibs")
+#
+if test "$ac_cv_func_lsocket" != no ; then
+AC_CHECK_FUNCS(socket,,[
+ CF_RECHECK_FUNC(socket,socket,cf_cv_netlibs,[
+ CF_RECHECK_FUNC(socket,bsd,cf_cv_netlibs)])])
+fi
+#
+AC_CHECK_FUNCS(gethostbyname,,[
+ CF_RECHECK_FUNC(gethostbyname,nsl,cf_cv_netlibs)])
+])
+LIBS="$LIBS $cf_cv_netlibs"
+test $cf_test_netlibs = no && echo "$cf_cv_netlibs" >&AC_FD_MSG
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl Re-check on a function to see if we can pick it up by adding a library.
+dnl $1 = function to check
+dnl $2 = library to check in
+dnl $3 = environment to update (e.g., $LIBS)
+dnl $4 = what to do if this fails
+dnl
+dnl This uses 'unset' if the shell happens to support it, but leaves the
+dnl configuration variable set to 'unknown' if not. This is a little better
+dnl than the normal autoconf test, which gives misleading results if a test
+dnl for the function is made (e.g., with AC_CHECK_FUNC) after this macro is
+dnl used (autoconf does not distinguish between a null token and one that is
+dnl set to 'no').
+AC_DEFUN([CF_RECHECK_FUNC],[
+AC_CHECK_LIB($2,$1,[
+ CF_UPPER(cf_tr_func,$1)
+ AC_DEFINE_UNQUOTED(HAVE_$cf_tr_func,1,[Define if you have function $1])
+ ac_cv_func_$1=yes
+ $3="-l$2 [$]$3"],[
+ ac_cv_func_$1=unknown
+ unset ac_cv_func_$1 2>/dev/null
+ $4],
+ [[$]$3])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl Make an uppercase version of a variable
+dnl $1=uppercase($2)
+AC_DEFUN([CF_UPPER],
+[
+changequote(,)dnl
+$1=`echo $2 | tr '[a-z]' '[A-Z]'`
+changequote([,])dnl
+])dnl
+
+
+dnl ---------------------------------------------------------------------------
+dnl From Paul Eggert <eggert@twinsun.com>
+dnl Update for Darwin by Troy Runkel <Troy.Runkel@mathworks.com>
+dnl Update for AIX by Olexiy Buyanskyy (Savannah bug 32485)
+
+AC_DEFUN([AC_STRUCT_ST_MTIM_NSEC],
+ [AC_CACHE_CHECK([for nanoseconds field of struct stat],
+ ac_cv_struct_st_mtim_nsec,
+ [ac_save_CPPFLAGS="$CPPFLAGS"
+ ac_cv_struct_st_mtim_nsec=no
+ # st_mtim.tv_nsec -- the usual case
+ # st_mtim._tv_nsec -- Solaris 2.6, if
+ # (defined _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED == 1
+ # && !defined __EXTENSIONS__)
+ # st_mtim.st__tim.tv_nsec -- UnixWare 2.1.2
+ # st_mtime_n -- AIX 5.2 and above
+ # st_mtimespec.tv_nsec -- Darwin (Mac OSX)
+ for ac_val in st_mtim.tv_nsec st_mtim._tv_nsec st_mtim.st__tim.tv_nsec st_mtime_n st_mtimespec.tv_nsec; do
+ CPPFLAGS="$ac_save_CPPFLAGS -DST_MTIM_NSEC=$ac_val"
+ AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/stat.h>
+ ], [struct stat s; s.ST_MTIM_NSEC;],
+ [ac_cv_struct_st_mtim_nsec=$ac_val; break])
+ done
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ ])
+
+ if test $ac_cv_struct_st_mtim_nsec != no; then
+ AC_DEFINE_UNQUOTED([ST_MTIM_NSEC], [$ac_cv_struct_st_mtim_nsec],
+ [Define if struct stat contains a nanoseconds field])
+ fi
+ ]
+)
diff --git a/alloca.c b/alloca.c
new file mode 100644
index 0000000..02ac921
--- /dev/null
+++ b/alloca.c
@@ -0,0 +1,503 @@
+/* alloca.c -- allocate automatically reclaimed memory
+ (Mostly) portable public-domain implementation -- D A Gwyn
+
+ This implementation of the PWB library alloca function,
+ which is used to allocate space off the run-time stack so
+ that it is automatically reclaimed upon procedure exit,
+ was inspired by discussions with J. Q. Johnson of Cornell.
+ J.Otto Tennant <jot@cray.com> contributed the Cray support.
+
+ There are some preprocessor constants that can
+ be defined when compiling for your specific system, for
+ improved efficiency; however, the defaults should be okay.
+
+ The general concept of this implementation is to keep
+ track of all alloca-allocated blocks, and reclaim any
+ that are found to be deeper in the stack than the current
+ invocation. This heuristic does not reclaim storage as
+ soon as it becomes invalid, but it will do so eventually.
+
+ As a special case, alloca(0) reclaims storage without
+ allocating any. It is a good idea to use alloca(0) in
+ your main control loop, etc. to force garbage collection. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef emacs
+#include "blockinput.h"
+#endif
+
+/* If compiling with GCC 2, this file's not needed. */
+#if !defined (__GNUC__) || __GNUC__ < 2
+
+/* If someone has defined alloca as a macro,
+ there must be some other way alloca is supposed to work. */
+#ifndef alloca
+
+#ifdef emacs
+#ifdef static
+/* actually, only want this if static is defined as ""
+ -- this is for usg, in which emacs must undefine static
+ in order to make unexec workable
+ */
+#ifndef STACK_DIRECTION
+you
+lose
+-- must know STACK_DIRECTION at compile-time
+#endif /* STACK_DIRECTION undefined */
+#endif /* static */
+#endif /* emacs */
+
+/* If your stack is a linked list of frames, you have to
+ provide an "address metric" ADDRESS_FUNCTION macro. */
+
+#if defined (CRAY) && defined (CRAY_STACKSEG_END)
+long i00afunc ();
+#define ADDRESS_FUNCTION(arg) (char *) i00afunc (&(arg))
+#else
+#define ADDRESS_FUNCTION(arg) &(arg)
+#endif
+
+#if __STDC__
+typedef void *pointer;
+#else
+typedef char *pointer;
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+/* Different portions of Emacs need to call different versions of
+ malloc. The Emacs executable needs alloca to call xmalloc, because
+ ordinary malloc isn't protected from input signals. On the other
+ hand, the utilities in lib-src need alloca to call malloc; some of
+ them are very simple, and don't have an xmalloc routine.
+
+ Non-Emacs programs expect this to call use xmalloc.
+
+ Callers below should use malloc. */
+
+#ifndef emacs
+#define malloc xmalloc
+#endif
+extern pointer malloc ();
+
+/* Define STACK_DIRECTION if you know the direction of stack
+ growth for your system; otherwise it will be automatically
+ deduced at run-time.
+
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown */
+
+#ifndef STACK_DIRECTION
+#define STACK_DIRECTION 0 /* Direction unknown. */
+#endif
+
+#if STACK_DIRECTION != 0
+
+#define STACK_DIR STACK_DIRECTION /* Known at compile-time. */
+
+#else /* STACK_DIRECTION == 0; need run-time code. */
+
+static int stack_dir; /* 1 or -1 once known. */
+#define STACK_DIR stack_dir
+
+static void
+find_stack_direction (void)
+{
+ static char *addr = NULL; /* Address of first 'dummy', once known. */
+ auto char dummy; /* To get stack address. */
+
+ if (addr == NULL)
+ { /* Initial entry. */
+ addr = ADDRESS_FUNCTION (dummy);
+
+ find_stack_direction (); /* Recurse once. */
+ }
+ else
+ {
+ /* Second entry. */
+ if (ADDRESS_FUNCTION (dummy) > addr)
+ stack_dir = 1; /* Stack grew upward. */
+ else
+ stack_dir = -1; /* Stack grew downward. */
+ }
+}
+
+#endif /* STACK_DIRECTION == 0 */
+
+/* An "alloca header" is used to:
+ (a) chain together all alloca'ed blocks;
+ (b) keep track of stack depth.
+
+ It is very important that sizeof(header) agree with malloc
+ alignment chunk size. The following default should work okay. */
+
+#ifndef ALIGN_SIZE
+#define ALIGN_SIZE sizeof(double)
+#endif
+
+typedef union hdr
+{
+ char align[ALIGN_SIZE]; /* To force sizeof(header). */
+ struct
+ {
+ union hdr *next; /* For chaining headers. */
+ char *deep; /* For stack depth measure. */
+ } h;
+} header;
+
+static header *last_alloca_header = NULL; /* -> last alloca header. */
+
+/* Return a pointer to at least SIZE bytes of storage,
+ which will be automatically reclaimed upon exit from
+ the procedure that called alloca. Originally, this space
+ was supposed to be taken from the current stack frame of the
+ caller, but that method cannot be made to work for some
+ implementations of C, for example under Gould's UTX/32. */
+
+pointer
+alloca (unsigned size)
+{
+ auto char probe; /* Probes stack depth: */
+ register char *depth = ADDRESS_FUNCTION (probe);
+
+#if STACK_DIRECTION == 0
+ if (STACK_DIR == 0) /* Unknown growth direction. */
+ find_stack_direction ();
+#endif
+
+ /* Reclaim garbage, defined as all alloca'd storage that
+ was allocated from deeper in the stack than currently. */
+
+ {
+ register header *hp; /* Traverses linked list. */
+
+#ifdef emacs
+ BLOCK_INPUT;
+#endif
+
+ for (hp = last_alloca_header; hp != NULL;)
+ if ((STACK_DIR > 0 && hp->h.deep > depth)
+ || (STACK_DIR < 0 && hp->h.deep < depth))
+ {
+ register header *np = hp->h.next;
+
+ free ((pointer) hp); /* Collect garbage. */
+
+ hp = np; /* -> next header. */
+ }
+ else
+ break; /* Rest are not deeper. */
+
+ last_alloca_header = hp; /* -> last valid storage. */
+
+#ifdef emacs
+ UNBLOCK_INPUT;
+#endif
+ }
+
+ if (size == 0)
+ return NULL; /* No allocation required. */
+
+ /* Allocate combined header + user data storage. */
+
+ {
+ register pointer new = malloc (sizeof (header) + size);
+ /* Address of header. */
+
+ if (new == 0)
+ abort();
+
+ ((header *) new)->h.next = last_alloca_header;
+ ((header *) new)->h.deep = depth;
+
+ last_alloca_header = (header *) new;
+
+ /* User storage begins just after header. */
+
+ return (pointer) ((char *) new + sizeof (header));
+ }
+}
+
+#if defined (CRAY) && defined (CRAY_STACKSEG_END)
+
+#ifdef DEBUG_I00AFUNC
+#include <stdio.h>
+#endif
+
+#ifndef CRAY_STACK
+#define CRAY_STACK
+#ifndef CRAY2
+/* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
+struct stack_control_header
+ {
+ long shgrow:32; /* Number of times stack has grown. */
+ long shaseg:32; /* Size of increments to stack. */
+ long shhwm:32; /* High water mark of stack. */
+ long shsize:32; /* Current size of stack (all segments). */
+ };
+
+/* The stack segment linkage control information occurs at
+ the high-address end of a stack segment. (The stack
+ grows from low addresses to high addresses.) The initial
+ part of the stack segment linkage control information is
+ 0200 (octal) words. This provides for register storage
+ for the routine which overflows the stack. */
+
+struct stack_segment_linkage
+ {
+ long ss[0200]; /* 0200 overflow words. */
+ long sssize:32; /* Number of words in this segment. */
+ long ssbase:32; /* Offset to stack base. */
+ long:32;
+ long sspseg:32; /* Offset to linkage control of previous
+ segment of stack. */
+ long:32;
+ long sstcpt:32; /* Pointer to task common address block. */
+ long sscsnm; /* Private control structure number for
+ microtasking. */
+ long ssusr1; /* Reserved for user. */
+ long ssusr2; /* Reserved for user. */
+ long sstpid; /* Process ID for pid based multi-tasking. */
+ long ssgvup; /* Pointer to multitasking thread giveup. */
+ long sscray[7]; /* Reserved for Cray Research. */
+ long ssa0;
+ long ssa1;
+ long ssa2;
+ long ssa3;
+ long ssa4;
+ long ssa5;
+ long ssa6;
+ long ssa7;
+ long sss0;
+ long sss1;
+ long sss2;
+ long sss3;
+ long sss4;
+ long sss5;
+ long sss6;
+ long sss7;
+ };
+
+#else /* CRAY2 */
+/* The following structure defines the vector of words
+ returned by the STKSTAT library routine. */
+struct stk_stat
+ {
+ long now; /* Current total stack size. */
+ long maxc; /* Amount of contiguous space which would
+ be required to satisfy the maximum
+ stack demand to date. */
+ long high_water; /* Stack high-water mark. */
+ long overflows; /* Number of stack overflow ($STKOFEN) calls. */
+ long hits; /* Number of internal buffer hits. */
+ long extends; /* Number of block extensions. */
+ long stko_mallocs; /* Block allocations by $STKOFEN. */
+ long underflows; /* Number of stack underflow calls ($STKRETN). */
+ long stko_free; /* Number of deallocations by $STKRETN. */
+ long stkm_free; /* Number of deallocations by $STKMRET. */
+ long segments; /* Current number of stack segments. */
+ long maxs; /* Maximum number of stack segments so far. */
+ long pad_size; /* Stack pad size. */
+ long current_address; /* Current stack segment address. */
+ long current_size; /* Current stack segment size. This
+ number is actually corrupted by STKSTAT to
+ include the fifteen word trailer area. */
+ long initial_address; /* Address of initial segment. */
+ long initial_size; /* Size of initial segment. */
+ };
+
+/* The following structure describes the data structure which trails
+ any stack segment. I think that the description in 'asdef' is
+ out of date. I only describe the parts that I am sure about. */
+
+struct stk_trailer
+ {
+ long this_address; /* Address of this block. */
+ long this_size; /* Size of this block (does not include
+ this trailer). */
+ long unknown2;
+ long unknown3;
+ long link; /* Address of trailer block of previous
+ segment. */
+ long unknown5;
+ long unknown6;
+ long unknown7;
+ long unknown8;
+ long unknown9;
+ long unknown10;
+ long unknown11;
+ long unknown12;
+ long unknown13;
+ long unknown14;
+ };
+
+#endif /* CRAY2 */
+#endif /* not CRAY_STACK */
+
+#ifdef CRAY2
+/* Determine a "stack measure" for an arbitrary ADDRESS.
+ I doubt that "lint" will like this much. */
+
+static long
+i00afunc (long *address)
+{
+ struct stk_stat status;
+ struct stk_trailer *trailer;
+ long *block, size;
+ long result = 0;
+
+ /* We want to iterate through all of the segments. The first
+ step is to get the stack status structure. We could do this
+ more quickly and more directly, perhaps, by referencing the
+ $LM00 common block, but I know that this works. */
+
+ STKSTAT (&status);
+
+ /* Set up the iteration. */
+
+ trailer = (struct stk_trailer *) (status.current_address
+ + status.current_size
+ - 15);
+
+ /* There must be at least one stack segment. Therefore it is
+ a fatal error if "trailer" is null. */
+
+ if (trailer == 0)
+ abort ();
+
+ /* Discard segments that do not contain our argument address. */
+
+ while (trailer != 0)
+ {
+ block = (long *) trailer->this_address;
+ size = trailer->this_size;
+ if (block == 0 || size == 0)
+ abort ();
+ trailer = (struct stk_trailer *) trailer->link;
+ if ((block <= address) && (address < (block + size)))
+ break;
+ }
+
+ /* Set the result to the offset in this segment and add the sizes
+ of all predecessor segments. */
+
+ result = address - block;
+
+ if (trailer == 0)
+ {
+ return result;
+ }
+
+ do
+ {
+ if (trailer->this_size <= 0)
+ abort ();
+ result += trailer->this_size;
+ trailer = (struct stk_trailer *) trailer->link;
+ }
+ while (trailer != 0);
+
+ /* We are done. Note that if you present a bogus address (one
+ not in any segment), you will get a different number back, formed
+ from subtracting the address of the first block. This is probably
+ not what you want. */
+
+ return (result);
+}
+
+#else /* not CRAY2 */
+/* Stack address function for a CRAY-1, CRAY X-MP, or CRAY Y-MP.
+ Determine the number of the cell within the stack,
+ given the address of the cell. The purpose of this
+ routine is to linearize, in some sense, stack addresses
+ for alloca. */
+
+static long
+i00afunc (long address)
+{
+ long stkl = 0;
+
+ long size, pseg, this_segment, stack;
+ long result = 0;
+
+ struct stack_segment_linkage *ssptr;
+
+ /* Register B67 contains the address of the end of the
+ current stack segment. If you (as a subprogram) store
+ your registers on the stack and find that you are past
+ the contents of B67, you have overflowed the segment.
+
+ B67 also points to the stack segment linkage control
+ area, which is what we are really interested in. */
+
+ stkl = CRAY_STACKSEG_END ();
+ ssptr = (struct stack_segment_linkage *) stkl;
+
+ /* If one subtracts 'size' from the end of the segment,
+ one has the address of the first word of the segment.
+
+ If this is not the first segment, 'pseg' will be
+ nonzero. */
+
+ pseg = ssptr->sspseg;
+ size = ssptr->sssize;
+
+ this_segment = stkl - size;
+
+ /* It is possible that calling this routine itself caused
+ a stack overflow. Discard stack segments which do not
+ contain the target address. */
+
+ while (!(this_segment <= address && address <= stkl))
+ {
+#ifdef DEBUG_I00AFUNC
+ fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
+#endif
+ if (pseg == 0)
+ break;
+ stkl = stkl - pseg;
+ ssptr = (struct stack_segment_linkage *) stkl;
+ size = ssptr->sssize;
+ pseg = ssptr->sspseg;
+ this_segment = stkl - size;
+ }
+
+ result = address - this_segment;
+
+ /* If you subtract pseg from the current end of the stack,
+ you get the address of the previous stack segment's end.
+ This seems a little convoluted to me, but I'll bet you save
+ a cycle somewhere. */
+
+ while (pseg != 0)
+ {
+#ifdef DEBUG_I00AFUNC
+ fprintf (stderr, "%011o %011o\n", pseg, size);
+#endif
+ stkl = stkl - pseg;
+ ssptr = (struct stack_segment_linkage *) stkl;
+ size = ssptr->sssize;
+ pseg = ssptr->sspseg;
+ result += size;
+ }
+ return (result);
+}
+
+#endif /* not CRAY2 */
+#endif /* CRAY */
+
+#endif /* no alloca */
+#endif /* not GCC version 2 */
diff --git a/amiga.c b/amiga.c
new file mode 100644
index 0000000..cfd0d08
--- /dev/null
+++ b/amiga.c
@@ -0,0 +1,117 @@
+/* Running commands on Amiga
+Copyright (C) 1995-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "variable.h"
+#include "amiga.h"
+#include <assert.h>
+#include <exec/memory.h>
+#include <dos/dostags.h>
+#include <proto/exec.h>
+#include <proto/dos.h>
+
+static const char Amiga_version[] = "$VER: Make 3.74.3 (12.05.96) \n"
+ "Amiga Port by A. Digulla (digulla@home.lake.de)";
+
+int
+MyExecute (char **argv)
+{
+ char * buffer, * ptr;
+ char ** aptr;
+ int len = 0;
+ int status;
+
+ for (aptr=argv; *aptr; aptr++)
+ {
+ len += strlen (*aptr) + 4;
+ }
+
+ buffer = AllocMem (len, MEMF_ANY);
+
+ if (!buffer)
+ O (fatal, NILF, "MyExecute: Cannot allocate space for calling a command\n");
+
+ ptr = buffer;
+
+ for (aptr=argv; *aptr; aptr++)
+ {
+ if (((*aptr)[0] == ';' && !(*aptr)[1]))
+ {
+ *ptr ++ = '"';
+ strcpy (ptr, *aptr);
+ ptr += strlen (ptr);
+ *ptr ++ = '"';
+ }
+ else if ((*aptr)[0] == '@' && (*aptr)[1] == '@' && !(*aptr)[2])
+ {
+ *ptr ++ = '\n';
+ continue;
+ }
+ else
+ {
+ strcpy (ptr, *aptr);
+ ptr += strlen (ptr);
+ }
+ *ptr ++ = ' ';
+ *ptr = 0;
+ }
+
+ ptr[-1] = '\n';
+
+ status = SystemTags (buffer,
+ SYS_UserShell, TRUE,
+ TAG_END);
+
+ FreeMem (buffer, len);
+
+ if (SetSignal (0L,0L) & SIGBREAKF_CTRL_C)
+ status = 20;
+
+ /* Warnings don't count */
+ if (status == 5)
+ status = 0;
+
+ return status;
+}
+
+char *
+wildcard_expansion (char *wc, char *o)
+{
+# define PATH_SIZE 1024
+ struct AnchorPath * apath;
+
+ if ( (apath = AllocMem (sizeof (struct AnchorPath) + PATH_SIZE,
+ MEMF_CLEAR))
+ )
+ {
+ apath->ap_Strlen = PATH_SIZE;
+
+ if (MatchFirst (wc, apath) == 0)
+ {
+ do
+ {
+ o = variable_buffer_output (o, apath->ap_Buf,
+ strlen (apath->ap_Buf));
+ o = variable_buffer_output (o, " ",1);
+ } while (MatchNext (apath) == 0);
+ }
+
+ MatchEnd (apath);
+ FreeMem (apath, sizeof (struct AnchorPath) + PATH_SIZE);
+ }
+
+ return o;
+}
diff --git a/amiga.h b/amiga.h
new file mode 100644
index 0000000..afc910a
--- /dev/null
+++ b/amiga.h
@@ -0,0 +1,18 @@
+/* Definitions for amiga specific things
+Copyright (C) 1995-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+int MyExecute (char ** argv);
+char * wildcard_expansion (char * wc, char * o);
diff --git a/ar.c b/ar.c
new file mode 100644
index 0000000..b9c1cf7
--- /dev/null
+++ b/ar.c
@@ -0,0 +1,328 @@
+/* Interface to 'ar' archives for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#ifndef NO_ARCHIVES
+
+#include "filedef.h"
+#include "dep.h"
+#include <fnmatch.h>
+
+/* Return nonzero if NAME is an archive-member reference, zero if not. An
+ archive-member reference is a name like 'lib(member)' where member is a
+ non-empty string.
+ If a name like 'lib((entry))' is used, a fatal error is signaled at
+ the attempt to use this unsupported feature. */
+
+int
+ar_name (const char *name)
+{
+ const char *p = strchr (name, '(');
+ const char *end;
+
+ if (p == 0 || p == name)
+ return 0;
+
+ end = p + strlen (p) - 1;
+ if (*end != ')' || end == p + 1)
+ return 0;
+
+ if (p[1] == '(' && end[-1] == ')')
+ OS (fatal, NILF, _("attempt to use unsupported feature: '%s'"), name);
+
+ return 1;
+}
+
+
+/* Parse the archive-member reference NAME into the archive and member names.
+ Creates one allocated string containing both names, pointed to by ARNAME_P.
+ MEMNAME_P points to the member. */
+
+void
+ar_parse_name (const char *name, char **arname_p, char **memname_p)
+{
+ char *p;
+
+ *arname_p = xstrdup (name);
+ p = strchr (*arname_p, '(');
+ *(p++) = '\0';
+ p[strlen (p) - 1] = '\0';
+ *memname_p = p;
+}
+
+
+/* This function is called by 'ar_scan' to find which member to look at. */
+
+/* ARGSUSED */
+static long int
+ar_member_date_1 (int desc UNUSED, const char *mem, int truncated,
+ long int hdrpos UNUSED, long int datapos UNUSED,
+ long int size UNUSED, long int date,
+ int uid UNUSED, int gid UNUSED, unsigned int mode UNUSED,
+ const void *name)
+{
+ return ar_name_equal (name, mem, truncated) ? date : 0;
+}
+
+/* Return the modtime of NAME. */
+
+time_t
+ar_member_date (const char *name)
+{
+ char *arname;
+ char *memname;
+ long int val;
+
+ ar_parse_name (name, &arname, &memname);
+
+ /* Make sure we know the modtime of the archive itself because we are
+ likely to be called just before commands to remake a member are run,
+ and they will change the archive itself.
+
+ But we must be careful not to enter_file the archive itself if it does
+ not exist, because pattern_search assumes that files found in the data
+ base exist or can be made. */
+ {
+ struct file *arfile;
+ arfile = lookup_file (arname);
+ if (arfile == 0 && file_exists_p (arname))
+ arfile = enter_file (strcache_add (arname));
+
+ if (arfile != 0)
+ (void) f_mtime (arfile, 0);
+ }
+
+ val = ar_scan (arname, ar_member_date_1, memname);
+
+ free (arname);
+
+ return (val <= 0 ? (time_t) -1 : (time_t) val);
+}
+
+/* Set the archive-member NAME's modtime to now. */
+
+#ifdef VMS
+int
+ar_touch (const char *name)
+{
+ O (error, NILF, _("touch archive member is not available on VMS"));
+ return -1;
+}
+#else
+int
+ar_touch (const char *name)
+{
+ char *arname, *memname;
+ int val;
+
+ ar_parse_name (name, &arname, &memname);
+
+ /* Make sure we know the modtime of the archive itself before we
+ touch the member, since this will change the archive modtime. */
+ {
+ struct file *arfile;
+ arfile = enter_file (strcache_add (arname));
+ f_mtime (arfile, 0);
+ }
+
+ val = 1;
+ switch (ar_member_touch (arname, memname))
+ {
+ case -1:
+ OS (error, NILF, _("touch: Archive '%s' does not exist"), arname);
+ break;
+ case -2:
+ OS (error, NILF, _("touch: '%s' is not a valid archive"), arname);
+ break;
+ case -3:
+ perror_with_name ("touch: ", arname);
+ break;
+ case 1:
+ OSS (error, NILF,
+ _("touch: Member '%s' does not exist in '%s'"), memname, arname);
+ break;
+ case 0:
+ val = 0;
+ break;
+ default:
+ OS (error, NILF,
+ _("touch: Bad return code from ar_member_touch on '%s'"), name);
+ }
+
+ free (arname);
+
+ return val;
+}
+#endif /* !VMS */
+
+/* State of an 'ar_glob' run, passed to 'ar_glob_match'. */
+
+/* On VMS, (object) modules in libraries do not have suffixes. That is, to
+ find a match for a pattern, the pattern must not have any suffix. So the
+ suffix of the pattern is saved and the pattern is stripped (ar_glob).
+ If there is a match and the match, which is a module name, is added to
+ the chain, the saved suffix is added back to construct a source filename
+ (ar_glob_match). */
+
+struct ar_glob_state
+ {
+ const char *arname;
+ const char *pattern;
+#ifdef VMS
+ char *suffix;
+#endif
+ unsigned int size;
+ struct nameseq *chain;
+ unsigned int n;
+ };
+
+/* This function is called by 'ar_scan' to match one archive
+ element against the pattern in STATE. */
+
+static long int
+ar_glob_match (int desc UNUSED, const char *mem, int truncated UNUSED,
+ long int hdrpos UNUSED, long int datapos UNUSED,
+ long int size UNUSED, long int date UNUSED, int uid UNUSED,
+ int gid UNUSED, unsigned int mode UNUSED, const void *arg)
+{
+ struct ar_glob_state *state = (struct ar_glob_state *)arg;
+
+ if (fnmatch (state->pattern, mem, FNM_PATHNAME|FNM_PERIOD) == 0)
+ {
+ /* We have a match. Add it to the chain. */
+ struct nameseq *new = xcalloc (state->size);
+#ifdef VMS
+ if (state->suffix)
+ new->name = strcache_add(
+ concat(5, state->arname, "(", mem, state->suffix, ")"));
+ else
+#endif
+ new->name = strcache_add(concat(4, state->arname, "(", mem, ")"));
+ new->next = state->chain;
+ state->chain = new;
+ ++state->n;
+ }
+
+ return 0L;
+}
+
+/* Return nonzero if PATTERN contains any metacharacters.
+ Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
+static int
+ar_glob_pattern_p (const char *pattern, int quote)
+{
+ const char *p;
+ int opened = 0;
+
+ for (p = pattern; *p != '\0'; ++p)
+ switch (*p)
+ {
+ case '?':
+ case '*':
+ return 1;
+
+ case '\\':
+ if (quote)
+ ++p;
+ break;
+
+ case '[':
+ opened = 1;
+ break;
+
+ case ']':
+ if (opened)
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+
+/* Glob for MEMBER_PATTERN in archive ARNAME.
+ Return a malloc'd chain of matching elements (or nil if none). */
+
+struct nameseq *
+ar_glob (const char *arname, const char *member_pattern, unsigned int size)
+{
+ struct ar_glob_state state;
+ struct nameseq *n;
+ const char **names;
+ unsigned int i;
+#ifdef VMS
+ char *vms_member_pattern;
+#endif
+ if (! ar_glob_pattern_p (member_pattern, 1))
+ return 0;
+
+ /* Scan the archive for matches.
+ ar_glob_match will accumulate them in STATE.chain. */
+ state.arname = arname;
+ state.pattern = member_pattern;
+#ifdef VMS
+ {
+ /* In a copy of the pattern, find the suffix, save it and remove it from
+ the pattern */
+ char *lastdot;
+ vms_member_pattern = xstrdup(member_pattern);
+ lastdot = strrchr(vms_member_pattern, '.');
+ state.suffix = lastdot;
+ if (lastdot)
+ {
+ state.suffix = xstrdup(lastdot);
+ *lastdot = 0;
+ }
+ state.pattern = vms_member_pattern;
+ }
+#endif
+ state.size = size;
+ state.chain = 0;
+ state.n = 0;
+ ar_scan (arname, ar_glob_match, &state);
+
+#ifdef VMS
+ /* Deallocate any duplicated string */
+ free(vms_member_pattern);
+ if (state.suffix)
+ {
+ free(state.suffix);
+ }
+#endif
+
+ if (state.chain == 0)
+ return 0;
+
+ /* Now put the names into a vector for sorting. */
+ names = alloca (state.n * sizeof (const char *));
+ i = 0;
+ for (n = state.chain; n != 0; n = n->next)
+ names[i++] = n->name;
+
+ /* Sort them alphabetically. */
+ /* MSVC erroneously warns without a cast here. */
+ qsort ((void *)names, i, sizeof (*names), alpha_compare);
+
+ /* Put them back into the chain in the sorted order. */
+ i = 0;
+ for (n = state.chain; n != 0; n = n->next)
+ n->name = names[i++];
+
+ return state.chain;
+}
+
+#endif /* Not NO_ARCHIVES. */
diff --git a/arscan.c b/arscan.c
new file mode 100644
index 0000000..549fe1e
--- /dev/null
+++ b/arscan.c
@@ -0,0 +1,982 @@
+/* Library function for scanning an archive file.
+Copyright (C) 1987-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#ifdef TEST
+/* Hack, the real error() routine eventually pulls in die from main.c */
+#define error(a, b, c, d)
+#endif
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#else
+#include <sys/file.h>
+#endif
+
+#ifndef NO_ARCHIVES
+
+#ifdef VMS
+#include <lbrdef.h>
+#include <mhddef.h>
+#include <credef.h>
+#include <descrip.h>
+#include <ctype.h>
+#include <ssdef.h>
+#include <stsdef.h>
+#include <rmsdef.h>
+
+/* This symbol should be present in lbrdef.h. */
+#ifndef LBR$_HDRTRUNC
+#pragma extern_model save
+#pragma extern_model globalvalue
+extern unsigned int LBR$_HDRTRUNC;
+#pragma extern_model restore
+#endif
+
+#include <unixlib.h>
+#include <lbr$routines.h>
+
+const char *
+vmsify (const char *name, int type);
+
+/* Time conversion from VMS to Unix
+ Conversion from local time (stored in library) to GMT (needed for gmake)
+ Note: The tm_gmtoff element is a VMS extension to the ANSI standard. */
+static time_t
+vms_time_to_unix(void *vms_time)
+{
+ struct tm *tmp;
+ time_t unix_time;
+
+ unix_time = decc$fix_time(vms_time);
+ tmp = localtime(&unix_time);
+ unix_time -= tmp->tm_gmtoff;
+
+ return unix_time;
+}
+
+
+/* VMS library routines need static variables for callback */
+static void *VMS_lib_idx;
+
+static const void *VMS_saved_arg;
+
+static long int (*VMS_function) ();
+
+static long int VMS_function_ret;
+
+
+/* This is a callback procedure for lib$get_index */
+static int
+VMS_get_member_info(struct dsc$descriptor_s *module, unsigned long *rfa)
+{
+ int status, i;
+ const int truncated = 0; /* Member name may be truncated */
+ time_t member_date; /* Member date */
+ char *filename;
+ unsigned int buffer_length; /* Actual buffer length */
+
+ /* Unused constants - Make does not actually use most of these */
+ const int file_desc = -1; /* archive file descriptor for reading the data */
+ const int header_position = 0; /* Header position */
+ const int data_position = 0; /* Data position in file */
+ const int data_size = 0; /* Data size */
+ const int uid = 0; /* member gid */
+ const int gid = 0; /* member gid */
+ const int mode = 0; /* member protection mode */
+ /* End of unused constants */
+
+ static struct dsc$descriptor_s bufdesc =
+ { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL };
+
+ /* Only need the module definition */
+ struct mhddef *mhd;
+
+ /* If a previous callback is non-zero, just return that status */
+ if (VMS_function_ret)
+ {
+ return SS$_NORMAL;
+ }
+
+ /* lbr_set_module returns more than just the module header. So allocate
+ a buffer which is big enough: the maximum LBR$C_MAXHDRSIZ. That's at
+ least bigger than the size of struct mhddef.
+ If the request is too small, a buffer truncated warning is issued so
+ it can be reissued with a larger buffer.
+ We do not care if the buffer is truncated, so that is still a success. */
+ mhd = xmalloc(LBR$C_MAXHDRSIZ);
+ bufdesc.dsc$a_pointer = (char *) mhd;
+ bufdesc.dsc$w_length = LBR$C_MAXHDRSIZ;
+
+ status = lbr$set_module(&VMS_lib_idx, rfa, &bufdesc, &buffer_length, 0);
+
+ if ((status != LBR$_HDRTRUNC) && !$VMS_STATUS_SUCCESS(status))
+ {
+ ON(error, NILF,
+ _("lbr$set_module() failed to extract module info, status = %d"),
+ status);
+
+ lbr$close(&VMS_lib_idx);
+
+ return status;
+ }
+
+#ifdef TEST
+ /* When testing this code, it is useful to know the length returned */
+ printf("Input length = %d, actual = %d\n",
+ bufdesc.dsc$w_length, buffer_length);
+#endif
+
+ /* Conversion from VMS time to C time.
+ VMS defectlet - mhddef is sub-optimal, for the time, it has a 32 bit
+ longword, mhd$l_datim, and a 32 bit fill instead of two longwords, or
+ equivalent. */
+ member_date = vms_time_to_unix(&mhd->mhd$l_datim);
+ free(mhd);
+
+ /* Here we have a problem. The module name on VMS does not have
+ a file type, but the filename pattern in the "VMS_saved_arg"
+ may have one.
+ But only the method being called knows how to interpret the
+ filename pattern.
+ There are currently two different formats being used.
+ This means that we need a VMS specific code in those methods
+ to handle it. */
+ filename = xmalloc(module->dsc$w_length + 1);
+
+ /* TODO: We may need an option to preserve the case of the module
+ For now force the module name to lower case */
+ for (i = 0; i < module->dsc$w_length; i++)
+ filename[i] = _tolower((unsigned char )module->dsc$a_pointer[i]);
+
+ filename[i] = '\0';
+
+ VMS_function_ret = (*VMS_function)(file_desc, filename, truncated,
+ header_position, data_position, data_size, member_date, uid, gid, mode,
+ VMS_saved_arg);
+
+ free(filename);
+ return SS$_NORMAL;
+}
+
+
+/* Takes three arguments ARCHIVE, FUNCTION and ARG.
+
+ Open the archive named ARCHIVE, find its members one by one,
+ and for each one call FUNCTION with the following arguments:
+ archive file descriptor for reading the data,
+ member name,
+ member name might be truncated flag,
+ member header position in file,
+ member data position in file,
+ member data size,
+ member date,
+ member uid,
+ member gid,
+ member protection mode,
+ ARG.
+
+ NOTE: on VMS systems, only name, date, and arg are meaningful!
+
+ The descriptor is poised to read the data of the member
+ when FUNCTION is called. It does not matter how much
+ data FUNCTION reads.
+
+ If FUNCTION returns nonzero, we immediately return
+ what FUNCTION returned.
+
+ Returns -1 if archive does not exist,
+ Returns -2 if archive has invalid format.
+ Returns 0 if have scanned successfully. */
+
+long int
+ar_scan (const char *archive, ar_member_func_t function, const void *varg)
+{
+ char *vms_archive;
+
+ static struct dsc$descriptor_s libdesc =
+ { 0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL };
+
+ const unsigned long func = LBR$C_READ;
+ const unsigned long type = LBR$C_TYP_UNK;
+ const unsigned long index = 1;
+ unsigned long lib_idx;
+ int status;
+
+ VMS_saved_arg = varg;
+
+ /* Null archive string can show up in test and cause an access violation */
+ if (archive == NULL)
+ {
+ /* Null filenames do not exist */
+ return -1;
+ }
+
+ /* archive path name must be in VMS format */
+ vms_archive = (char *) vmsify(archive, 0);
+
+ status = lbr$ini_control(&VMS_lib_idx, &func, &type, 0);
+
+ if (!$VMS_STATUS_SUCCESS(status))
+ {
+ ON(error, NILF, _("lbr$ini_control() failed with status = %d"), status);
+ return -2;
+ }
+
+ libdesc.dsc$a_pointer = vms_archive;
+ libdesc.dsc$w_length = strlen(vms_archive);
+
+ status = lbr$open(&VMS_lib_idx, &libdesc, 0, NULL, 0, NULL, 0);
+
+ if (!$VMS_STATUS_SUCCESS(status))
+ {
+
+ /* TODO: A library format failure could mean that this is a file
+ generated by the GNU AR utility and in that case, we need to
+ take the UNIX codepath. This will also take a change to the
+ GNV AR wrapper program. */
+
+ switch (status)
+ {
+ case RMS$_FNF:
+ /* Archive does not exist */
+ return -1;
+ default:
+#ifndef TEST
+ OSN(error, NILF,
+ _("unable to open library '%s' to lookup member status %d"),
+ archive, status);
+#endif
+ /* For library format errors, specification says to return -2 */
+ return -2;
+ }
+ }
+
+ VMS_function = function;
+
+ /* Clear the return status, as we are supposed to stop calling the
+ callback function if it becomes non-zero, and this is a static
+ variable. */
+ VMS_function_ret = 0;
+
+ status = lbr$get_index(&VMS_lib_idx, &index, VMS_get_member_info, NULL, 0);
+
+ lbr$close(&VMS_lib_idx);
+
+ /* Unless a failure occurred in the lbr$ routines, return the
+ the status from the 'function' routine. */
+ if ($VMS_STATUS_SUCCESS(status))
+ {
+ return VMS_function_ret;
+ }
+
+ /* This must be something wrong with the library and an error
+ message should already have been printed. */
+ return -2;
+}
+
+#else /* !VMS */
+
+/* SCO Unix's compiler defines both of these. */
+#ifdef M_UNIX
+#undef M_XENIX
+#endif
+
+/* On the sun386i and in System V rel 3, ar.h defines two different archive
+ formats depending upon whether you have defined PORTAR (normal) or PORT5AR
+ (System V Release 1). There is no default, one or the other must be defined
+ to have a nonzero value. */
+
+#if (!defined (PORTAR) || PORTAR == 0) && (!defined (PORT5AR) || PORT5AR == 0)
+#undef PORTAR
+#ifdef M_XENIX
+/* According to Jim Sievert <jas1@rsvl.unisys.com>, for SCO XENIX defining
+ PORTAR to 1 gets the wrong archive format, and defining it to 0 gets the
+ right one. */
+#define PORTAR 0
+#else
+#define PORTAR 1
+#endif
+#endif
+
+/* On AIX, define these symbols to be sure to get both archive formats.
+ AIX 4.3 introduced the "big" archive format to support 64-bit object
+ files, so on AIX 4.3 systems we need to support both the "normal" and
+ "big" archive formats. An archive's format is indicated in the
+ "fl_magic" field of the "FL_HDR" structure. For a normal archive,
+ this field will be the string defined by the AIAMAG symbol. For a
+ "big" archive, it will be the string defined by the AIAMAGBIG symbol
+ (at least on AIX it works this way).
+
+ Note: we'll define these symbols regardless of which AIX version
+ we're compiling on, but this is okay since we'll use the new symbols
+ only if they're present. */
+#ifdef _AIX
+# define __AR_SMALL__
+# define __AR_BIG__
+#endif
+
+#ifndef WINDOWS32
+# if !defined (__ANDROID__) && !defined (__BEOS__)
+# include <ar.h>
+# else
+ /* These platforms don't have <ar.h> but have archives in the same format
+ * as many other Unices. This was taken from GNU binutils for BeOS.
+ */
+# define ARMAG "!<arch>\n" /* String that begins an archive file. */
+# define SARMAG 8 /* Size of that string. */
+# define ARFMAG "`\n" /* String in ar_fmag at end of each header. */
+struct ar_hdr
+ {
+ char ar_name[16]; /* Member file name, sometimes / terminated. */
+ char ar_date[12]; /* File date, decimal seconds since Epoch. */
+ char ar_uid[6], ar_gid[6]; /* User and group IDs, in ASCII decimal. */
+ char ar_mode[8]; /* File mode, in ASCII octal. */
+ char ar_size[10]; /* File size, in ASCII decimal. */
+ char ar_fmag[2]; /* Always contains ARFMAG. */
+ };
+# endif
+# define TOCHAR(_m) (_m)
+#else
+/* These should allow us to read Windows (VC++) libraries (according to Frank
+ * Libbrecht <frankl@abzx.belgium.hp.com>)
+ */
+# include <windows.h>
+# include <windef.h>
+# include <io.h>
+# define ARMAG IMAGE_ARCHIVE_START
+# define SARMAG IMAGE_ARCHIVE_START_SIZE
+# define ar_hdr _IMAGE_ARCHIVE_MEMBER_HEADER
+# define ar_name Name
+# define ar_mode Mode
+# define ar_size Size
+# define ar_date Date
+# define ar_uid UserID
+# define ar_gid GroupID
+/* In Windows the member names have type BYTE so we must cast them. */
+# define TOCHAR(_m) ((char *)(_m))
+#endif
+
+/* Cray's <ar.h> apparently defines this. */
+#ifndef AR_HDR_SIZE
+# define AR_HDR_SIZE (sizeof (struct ar_hdr))
+#endif
+
+/* Takes three arguments ARCHIVE, FUNCTION and ARG.
+
+ Open the archive named ARCHIVE, find its members one by one,
+ and for each one call FUNCTION with the following arguments:
+ archive file descriptor for reading the data,
+ member name,
+ member name might be truncated flag,
+ member header position in file,
+ member data position in file,
+ member data size,
+ member date,
+ member uid,
+ member gid,
+ member protection mode,
+ ARG.
+
+ The descriptor is poised to read the data of the member
+ when FUNCTION is called. It does not matter how much
+ data FUNCTION reads.
+
+ If FUNCTION returns nonzero, we immediately return
+ what FUNCTION returned.
+
+ Returns -1 if archive does not exist,
+ Returns -2 if archive has invalid format.
+ Returns 0 if have scanned successfully. */
+
+long int
+ar_scan (const char *archive, ar_member_func_t function, const void *arg)
+{
+#ifdef AIAMAG
+ FL_HDR fl_header;
+# ifdef AIAMAGBIG
+ int big_archive = 0;
+ FL_HDR_BIG fl_header_big;
+# endif
+#endif
+ char *namemap = 0;
+ int desc = open (archive, O_RDONLY, 0);
+ if (desc < 0)
+ return -1;
+#ifdef SARMAG
+ {
+ char buf[SARMAG];
+ int nread;
+ EINTRLOOP (nread, read (desc, buf, SARMAG));
+ if (nread != SARMAG || memcmp (buf, ARMAG, SARMAG))
+ {
+ (void) close (desc);
+ return -2;
+ }
+ }
+#else
+#ifdef AIAMAG
+ {
+ int nread;
+ EINTRLOOP (nread, read (desc, &fl_header, FL_HSZ));
+ if (nread != FL_HSZ)
+ {
+ (void) close (desc);
+ return -2;
+ }
+#ifdef AIAMAGBIG
+ /* If this is a "big" archive, then set the flag and
+ re-read the header into the "big" structure. */
+ if (!memcmp (fl_header.fl_magic, AIAMAGBIG, SAIAMAG))
+ {
+ off_t o;
+
+ big_archive = 1;
+
+ /* seek back to beginning of archive */
+ EINTRLOOP (o, lseek (desc, 0, 0));
+ if (o < 0)
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ /* re-read the header into the "big" structure */
+ EINTRLOOP (nread, read (desc, &fl_header_big, FL_HSZ_BIG));
+ if (nread != FL_HSZ_BIG)
+ {
+ (void) close (desc);
+ return -2;
+ }
+ }
+ else
+#endif
+ /* Check to make sure this is a "normal" archive. */
+ if (memcmp (fl_header.fl_magic, AIAMAG, SAIAMAG))
+ {
+ (void) close (desc);
+ return -2;
+ }
+ }
+#else
+ {
+#ifndef M_XENIX
+ int buf;
+#else
+ unsigned short int buf;
+#endif
+ int nread;
+ EINTRLOOP (nread, read (desc, &buf, sizeof (buf)));
+ if (nread != sizeof (buf) || buf != ARMAG)
+ {
+ (void) close (desc);
+ return -2;
+ }
+ }
+#endif
+#endif
+
+ /* Now find the members one by one. */
+ {
+#ifdef SARMAG
+ register long int member_offset = SARMAG;
+#else
+#ifdef AIAMAG
+ long int member_offset;
+ long int last_member_offset;
+
+#ifdef AIAMAGBIG
+ if ( big_archive )
+ {
+ sscanf (fl_header_big.fl_fstmoff, "%20ld", &member_offset);
+ sscanf (fl_header_big.fl_lstmoff, "%20ld", &last_member_offset);
+ }
+ else
+#endif
+ {
+ sscanf (fl_header.fl_fstmoff, "%12ld", &member_offset);
+ sscanf (fl_header.fl_lstmoff, "%12ld", &last_member_offset);
+ }
+
+ if (member_offset == 0)
+ {
+ /* Empty archive. */
+ close (desc);
+ return 0;
+ }
+#else
+#ifndef M_XENIX
+ register long int member_offset = sizeof (int);
+#else /* Xenix. */
+ register long int member_offset = sizeof (unsigned short int);
+#endif /* Not Xenix. */
+#endif
+#endif
+
+ while (1)
+ {
+ register int nread;
+ struct ar_hdr member_header;
+#ifdef AIAMAGBIG
+ struct ar_hdr_big member_header_big;
+#endif
+#ifdef AIAMAG
+ char name[256];
+ int name_len;
+ long int dateval;
+ int uidval, gidval;
+ long int data_offset;
+#else
+ char namebuf[sizeof member_header.ar_name + 1];
+ char *name;
+ int is_namemap; /* Nonzero if this entry maps long names. */
+ int long_name = 0;
+#endif
+ long int eltsize;
+ unsigned int eltmode;
+ long int fnval;
+ off_t o;
+
+ EINTRLOOP (o, lseek (desc, member_offset, 0));
+ if (o < 0)
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+#ifdef AIAMAG
+#define AR_MEMHDR_SZ(x) (sizeof(x) - sizeof (x._ar_name))
+
+#ifdef AIAMAGBIG
+ if (big_archive)
+ {
+ EINTRLOOP (nread, read (desc, &member_header_big,
+ AR_MEMHDR_SZ(member_header_big)));
+
+ if (nread != AR_MEMHDR_SZ(member_header_big))
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ sscanf (member_header_big.ar_namlen, "%4d", &name_len);
+ EINTRLOOP (nread, read (desc, name, name_len));
+
+ if (nread != name_len)
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ name[name_len] = 0;
+
+ sscanf (member_header_big.ar_date, "%12ld", &dateval);
+ sscanf (member_header_big.ar_uid, "%12d", &uidval);
+ sscanf (member_header_big.ar_gid, "%12d", &gidval);
+ sscanf (member_header_big.ar_mode, "%12o", &eltmode);
+ sscanf (member_header_big.ar_size, "%20ld", &eltsize);
+
+ data_offset = (member_offset + AR_MEMHDR_SZ(member_header_big)
+ + name_len + 2);
+ }
+ else
+#endif
+ {
+ EINTRLOOP (nread, read (desc, &member_header,
+ AR_MEMHDR_SZ(member_header)));
+
+ if (nread != AR_MEMHDR_SZ(member_header))
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ sscanf (member_header.ar_namlen, "%4d", &name_len);
+ EINTRLOOP (nread, read (desc, name, name_len));
+
+ if (nread != name_len)
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ name[name_len] = 0;
+
+ sscanf (member_header.ar_date, "%12ld", &dateval);
+ sscanf (member_header.ar_uid, "%12d", &uidval);
+ sscanf (member_header.ar_gid, "%12d", &gidval);
+ sscanf (member_header.ar_mode, "%12o", &eltmode);
+ sscanf (member_header.ar_size, "%12ld", &eltsize);
+
+ data_offset = (member_offset + AR_MEMHDR_SZ(member_header)
+ + name_len + 2);
+ }
+ data_offset += data_offset % 2;
+
+ fnval =
+ (*function) (desc, name, 0,
+ member_offset, data_offset, eltsize,
+ dateval, uidval, gidval,
+ eltmode, arg);
+
+#else /* Not AIAMAG. */
+ EINTRLOOP (nread, read (desc, &member_header, AR_HDR_SIZE));
+ if (nread == 0)
+ /* No data left means end of file; that is OK. */
+ break;
+
+ if (nread != AR_HDR_SIZE
+#if defined(ARFMAG) || defined(ARFZMAG)
+ || (
+# ifdef ARFMAG
+ memcmp (member_header.ar_fmag, ARFMAG, 2)
+# else
+ 1
+# endif
+ &&
+# ifdef ARFZMAG
+ memcmp (member_header.ar_fmag, ARFZMAG, 2)
+# else
+ 1
+# endif
+ )
+#endif
+ )
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ name = namebuf;
+ memcpy (name, member_header.ar_name, sizeof member_header.ar_name);
+ {
+ register char *p = name + sizeof member_header.ar_name;
+ do
+ *p = '\0';
+ while (p > name && *--p == ' ');
+
+#ifndef AIAMAG
+ /* If the member name is "//" or "ARFILENAMES/" this may be
+ a list of file name mappings. The maximum file name
+ length supported by the standard archive format is 14
+ characters. This member will actually always be the
+ first or second entry in the archive, but we don't check
+ that. */
+ is_namemap = (!strcmp (name, "//")
+ || !strcmp (name, "ARFILENAMES/"));
+#endif /* Not AIAMAG. */
+ /* On some systems, there is a slash after each member name. */
+ if (*p == '/')
+ *p = '\0';
+
+#ifndef AIAMAG
+ /* If the member name starts with a space or a slash, this
+ is an index into the file name mappings (used by GNU ar).
+ Otherwise if the member name looks like #1/NUMBER the
+ real member name appears in the element data (used by
+ 4.4BSD). */
+ if (! is_namemap
+ && (name[0] == ' ' || name[0] == '/')
+ && namemap != 0)
+ {
+ name = namemap + atoi (name + 1);
+ long_name = 1;
+ }
+ else if (name[0] == '#'
+ && name[1] == '1'
+ && name[2] == '/')
+ {
+ int namesize = atoi (name + 3);
+
+ name = alloca (namesize + 1);
+ EINTRLOOP (nread, read (desc, name, namesize));
+ if (nread != namesize)
+ {
+ close (desc);
+ return -2;
+ }
+ name[namesize] = '\0';
+
+ long_name = 1;
+ }
+#endif /* Not AIAMAG. */
+ }
+
+#ifndef M_XENIX
+ sscanf (TOCHAR (member_header.ar_mode), "%o", &eltmode);
+ eltsize = atol (TOCHAR (member_header.ar_size));
+#else /* Xenix. */
+ eltmode = (unsigned short int) member_header.ar_mode;
+ eltsize = member_header.ar_size;
+#endif /* Not Xenix. */
+
+ fnval =
+ (*function) (desc, name, ! long_name, member_offset,
+ member_offset + AR_HDR_SIZE, eltsize,
+#ifndef M_XENIX
+ atol (TOCHAR (member_header.ar_date)),
+ atoi (TOCHAR (member_header.ar_uid)),
+ atoi (TOCHAR (member_header.ar_gid)),
+#else /* Xenix. */
+ member_header.ar_date,
+ member_header.ar_uid,
+ member_header.ar_gid,
+#endif /* Not Xenix. */
+ eltmode, arg);
+
+#endif /* AIAMAG. */
+
+ if (fnval)
+ {
+ (void) close (desc);
+ return fnval;
+ }
+
+#ifdef AIAMAG
+ if (member_offset == last_member_offset)
+ /* End of the chain. */
+ break;
+
+#ifdef AIAMAGBIG
+ if (big_archive)
+ sscanf (member_header_big.ar_nxtmem, "%20ld", &member_offset);
+ else
+#endif
+ sscanf (member_header.ar_nxtmem, "%12ld", &member_offset);
+
+ if (lseek (desc, member_offset, 0) != member_offset)
+ {
+ (void) close (desc);
+ return -2;
+ }
+#else
+
+ /* If this member maps archive names, we must read it in. The
+ name map will always precede any members whose names must
+ be mapped. */
+ if (is_namemap)
+ {
+ char *clear;
+ char *limit;
+
+ namemap = alloca (eltsize);
+ EINTRLOOP (nread, read (desc, namemap, eltsize));
+ if (nread != eltsize)
+ {
+ (void) close (desc);
+ return -2;
+ }
+
+ /* The names are separated by newlines. Some formats have
+ a trailing slash. Null terminate the strings for
+ convenience. */
+ limit = namemap + eltsize;
+ for (clear = namemap; clear < limit; clear++)
+ {
+ if (*clear == '\n')
+ {
+ *clear = '\0';
+ if (clear[-1] == '/')
+ clear[-1] = '\0';
+ }
+ }
+
+ is_namemap = 0;
+ }
+
+ member_offset += AR_HDR_SIZE + eltsize;
+ if (member_offset % 2 != 0)
+ member_offset++;
+#endif
+ }
+ }
+
+ close (desc);
+ return 0;
+}
+#endif /* !VMS */
+
+/* Return nonzero iff NAME matches MEM.
+ If TRUNCATED is nonzero, MEM may be truncated to
+ sizeof (struct ar_hdr.ar_name) - 1. */
+
+int
+ar_name_equal (const char *name, const char *mem, int truncated)
+{
+ const char *p;
+
+ p = strrchr (name, '/');
+ if (p != 0)
+ name = p + 1;
+
+#ifndef VMS
+ if (truncated)
+ {
+#ifdef AIAMAG
+ /* TRUNCATED should never be set on this system. */
+ abort ();
+#else
+ struct ar_hdr hdr;
+#if !defined (__hpux) && !defined (cray)
+ return strneq (name, mem, sizeof (hdr.ar_name) - 1);
+#else
+ return strneq (name, mem, sizeof (hdr.ar_name) - 2);
+#endif /* !__hpux && !cray */
+#endif /* !AIAMAG */
+ }
+
+ return !strcmp (name, mem);
+#else
+ /* VMS members do not have suffixes, but the filenames usually
+ have.
+ Do we need to strip VMS disk/directory format paths?
+
+ Most VMS compilers etc. by default are case insensitive
+ but produce uppercase external names, incl. module names.
+ However the VMS librarian (ar) and the linker by default
+ are case sensitive: they take what they get, usually
+ uppercase names. So for the non-default settings of the
+ compilers etc. there is a need to have a case sensitive
+ mode. */
+ {
+ int len;
+ len = strlen(mem);
+ int match;
+ char *dot;
+ if ((dot=strrchr(name,'.')))
+ match = (len == dot - name) && !strncasecmp(name, mem, len);
+ else
+ match = !strcasecmp (name, mem);
+ return match;
+ }
+#endif /* !VMS */
+}
+
+#ifndef VMS
+/* ARGSUSED */
+static long int
+ar_member_pos (int desc UNUSED, const char *mem, int truncated,
+ long int hdrpos, long int datapos UNUSED, long int size UNUSED,
+ long int date UNUSED, int uid UNUSED, int gid UNUSED,
+ unsigned int mode UNUSED, const void *name)
+{
+ if (!ar_name_equal (name, mem, truncated))
+ return 0;
+ return hdrpos;
+}
+
+/* Set date of member MEMNAME in archive ARNAME to current time.
+ Returns 0 if successful,
+ -1 if file ARNAME does not exist,
+ -2 if not a valid archive,
+ -3 if other random system call error (including file read-only),
+ 1 if valid but member MEMNAME does not exist. */
+
+int
+ar_member_touch (const char *arname, const char *memname)
+{
+ long int pos = ar_scan (arname, ar_member_pos, memname);
+ int fd;
+ struct ar_hdr ar_hdr;
+ off_t o;
+ int r;
+ unsigned int ui;
+ struct stat statbuf;
+
+ if (pos < 0)
+ return (int) pos;
+ if (!pos)
+ return 1;
+
+ EINTRLOOP (fd, open (arname, O_RDWR, 0666));
+ if (fd < 0)
+ return -3;
+ /* Read in this member's header */
+ EINTRLOOP (o, lseek (fd, pos, 0));
+ if (o < 0)
+ goto lose;
+ EINTRLOOP (r, read (fd, &ar_hdr, AR_HDR_SIZE));
+ if (r != AR_HDR_SIZE)
+ goto lose;
+ /* Write back the header, thus touching the archive file. */
+ EINTRLOOP (o, lseek (fd, pos, 0));
+ if (o < 0)
+ goto lose;
+ EINTRLOOP (r, write (fd, &ar_hdr, AR_HDR_SIZE));
+ if (r != AR_HDR_SIZE)
+ goto lose;
+ /* The file's mtime is the time we we want. */
+ EINTRLOOP (r, fstat (fd, &statbuf));
+ if (r < 0)
+ goto lose;
+#if defined(ARFMAG) || defined(ARFZMAG) || defined(AIAMAG) || defined(WINDOWS32)
+ /* Advance member's time to that time */
+ for (ui = 0; ui < sizeof ar_hdr.ar_date; ui++)
+ ar_hdr.ar_date[ui] = ' ';
+ sprintf (TOCHAR (ar_hdr.ar_date), "%lu", (long unsigned) statbuf.st_mtime);
+#ifdef AIAMAG
+ ar_hdr.ar_date[strlen (ar_hdr.ar_date)] = ' ';
+#endif
+#else
+ ar_hdr.ar_date = statbuf.st_mtime;
+#endif
+ /* Write back this member's header */
+ EINTRLOOP (o, lseek (fd, pos, 0));
+ if (o < 0)
+ goto lose;
+ EINTRLOOP (r, write (fd, &ar_hdr, AR_HDR_SIZE));
+ if (r != AR_HDR_SIZE)
+ goto lose;
+ close (fd);
+ return 0;
+
+ lose:
+ r = errno;
+ close (fd);
+ errno = r;
+ return -3;
+}
+#endif
+
+#ifdef TEST
+
+long int
+describe_member (int desc, const char *name, int truncated,
+ long int hdrpos, long int datapos, long int size,
+ long int date, int uid, int gid, unsigned int mode,
+ const void *arg)
+{
+ extern char *ctime ();
+
+ printf (_("Member '%s'%s: %ld bytes at %ld (%ld).\n"),
+ name, truncated ? _(" (name might be truncated)") : "",
+ size, hdrpos, datapos);
+ printf (_(" Date %s"), ctime (&date));
+ printf (_(" uid = %d, gid = %d, mode = 0%o.\n"), uid, gid, mode);
+
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ ar_scan (argv[1], describe_member, NULL);
+ return 0;
+}
+
+#endif /* TEST. */
+#endif /* NO_ARCHIVES. */
diff --git a/build.template b/build.template
new file mode 100644
index 0000000..4b01b46
--- /dev/null
+++ b/build.template
@@ -0,0 +1,81 @@
+#!/bin/sh
+# Shell script to build GNU Make in the absence of any 'make' program.
+# @configure_input@
+
+# Copyright (C) 1993-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+# See Makefile.in for comments describing these variables.
+
+srcdir='@srcdir@'
+CC='@CC@'
+CFLAGS='@CFLAGS@ @GUILE_CFLAGS@'
+CPPFLAGS='@CPPFLAGS@'
+LDFLAGS='@AM_LDFLAGS@ @LDFLAGS@'
+ALLOCA='@ALLOCA@'
+LOADLIBES='@LIBS@ @GUILE_LIBS@ @LIBINTL@'
+eval extras=\'@LIBOBJS@\'
+REMOTE='@REMOTE@'
+GLOBLIB='@GLOBLIB@'
+PATH_SEPARATOR='@PATH_SEPARATOR@'
+OBJEXT='@OBJEXT@'
+EXEEXT='@EXEEXT@'
+
+# Common prefix for machine-independent installed files.
+prefix='@prefix@'
+# Common prefix for machine-dependent installed files.
+exec_prefix=`eval echo @exec_prefix@`
+# Directory to find libraries in for '-lXXX'.
+libdir=${exec_prefix}/lib
+# Directory to search by default for included makefiles.
+includedir=${prefix}/include
+
+localedir=${prefix}/share/locale
+aliaspath=${localedir}${PATH_SEPARATOR}.
+
+defines="-DLOCALEDIR=\"${localedir}\" -DLIBDIR=\"${libdir}\" -DINCLUDEDIR=\"${includedir}\""' @DEFS@'
+
+# Exit as soon as any command fails.
+set -e
+
+# These are all the objects we need to link together.
+objs="%objs% remote-${REMOTE}.${OBJEXT} ${extras} ${ALLOCA}"
+
+if [ x"$GLOBLIB" != x ]; then
+ objs="$objs %globobjs%"
+ globinc=-I${srcdir}/glob
+fi
+
+# Compile the source files into those objects.
+for file in `echo ${objs} | sed 's/\.'${OBJEXT}'/.c/g'`; do
+ echo compiling ${file}...
+ $CC $defines $CPPFLAGS $CFLAGS \
+ -c -I. -I${srcdir} ${globinc} ${srcdir}/$file
+done
+
+# The object files were actually all put in the current directory.
+# Remove the source directory names from the list.
+srcobjs="$objs"
+objs=
+for obj in $srcobjs; do
+ objs="$objs `basename $obj`"
+done
+
+# Link all the objects together.
+echo linking make...
+$CC $CFLAGS $LDFLAGS $objs $LOADLIBES -o makenew${EXEEXT}
+echo done
+mv -f makenew${EXEEXT} make${EXEEXT}
diff --git a/build_w32.bat b/build_w32.bat
new file mode 100755
index 0000000..59e068b
--- /dev/null
+++ b/build_w32.bat
@@ -0,0 +1,250 @@
+@echo off
+rem Copyright (C) 1996-2016 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
+
+call :Reset
+
+if "%1" == "-h" goto Usage
+if "%1" == "--help" goto Usage
+
+set MAKE=gnumake
+set GUILE=Y
+set COMPILER=msvc
+
+:ParseSW
+if "%1" == "--debug" goto SetDebug
+if "%1" == "--without-guile" goto NoGuile
+if "%1" == "gcc" goto SetCC
+if "%1" == "" goto DoneSW
+
+:SetDebug
+set DEBUG=Y
+shift
+goto ParseSW
+
+:NoGuile
+set GUILE=N
+echo Building without Guile
+shift
+goto ParseSW
+
+:SetCC
+set COMPILER=gcc
+echo Building with GCC
+shift
+goto ParseSW
+
+rem Build with Guile is supported only on NT and later versions
+:DoneSW
+echo.
+echo Creating GNU Make for Windows 9X/NT/2K/XP/Vista/7/8
+if "%DEBUG%" == "Y" echo Building without compiler optimizations
+
+if "%COMPILER%" == "gcc" goto GccBuild
+
+set OUTDIR=.\WinRel
+set "OPTS=/O2 /D NDEBUG"
+set LINKOPTS=
+if "%DEBUG%" == "Y" set OUTDIR=.\WinDebug
+if "%DEBUG%" == "Y" set "OPTS=/Zi /Od /D _DEBUG"
+if "%DEBUG%" == "Y" set LINKOPTS=/DEBUG
+call :Build
+goto Done
+
+:GccBuild
+set OUTDIR=.\GccRel
+set OPTS=-O2
+if "%DEBUG%" == "Y" set OPTS=-O0
+if "%DEBUG%" == "Y" set OUTDIR=.\GccDebug
+call :Build
+goto Done
+
+:Done
+call :Reset
+goto :EOF
+
+:Build
+:: Clean the directory if it exists
+if exist %OUTDIR%\nul rmdir /S /Q %OUTDIR%
+
+:: Recreate it
+mkdir %OUTDIR%
+mkdir %OUTDIR%\glob
+mkdir %OUTDIR%\w32
+mkdir %OUTDIR%\w32\compat
+mkdir %OUTDIR%\w32\subproc
+
+if "%GUILE%" == "Y" call :ChkGuile
+
+echo.
+echo Compiling %OUTDIR% version
+
+if exist config.h.W32.template call :ConfigSCM
+copy config.h.W32 %OUTDIR%\config.h
+
+call :Compile ar
+call :Compile arscan
+call :Compile commands
+call :Compile default
+call :Compile dir
+call :Compile expand
+call :Compile file
+call :Compile function
+call :Compile getloadavg
+call :Compile getopt
+call :Compile getopt1
+call :Compile glob\fnmatch
+call :Compile glob\glob
+call :Compile guile GUILE
+call :Compile hash
+call :Compile implicit
+call :Compile job
+call :Compile load
+call :Compile loadapi
+call :Compile main GUILE
+call :Compile misc
+call :Compile output
+call :Compile read
+call :Compile remake
+call :Compile remote-stub
+call :Compile rule
+call :Compile signame
+call :Compile strcache
+call :Compile variable
+call :Compile version
+call :Compile vpath
+call :Compile w32\compat\posixfcn
+call :Compile w32\pathstuff
+call :Compile w32\subproc\misc
+call :Compile w32\subproc\sub_proc
+call :Compile w32\subproc\w32err
+call :Compile w32\w32os
+
+if not "%COMPILER%" == "gcc" call :Compile w32\compat\dirent
+
+call :Link
+
+echo.
+if not exist %OUTDIR%\%MAKE%.exe echo %OUTDIR% build FAILED!
+if exist %OUTDIR%\%MAKE%.exe echo %OUTDIR% build succeeded.
+goto :EOF
+
+:Compile
+set EXTRAS=
+if "%2" == "GUILE" set "EXTRAS=%GUILECFLAGS%"
+if "%COMPILER%" == "gcc" goto GccCompile
+
+:: MSVC Compile
+echo on
+cl.exe /nologo /MT /W4 /EHsc %OPTS% /I %OUTDIR% /I . /I glob /I w32/include /D WINDOWS32 /D WIN32 /D _CONSOLE /D HAVE_CONFIG_H /FR%OUTDIR% /Fp%OUTDIR%\%MAKE%.pch /Fo%OUTDIR%\%1.obj /Fd%OUTDIR%\%MAKE%.pdb %EXTRAS% /c %1.c
+@echo off
+echo %OUTDIR%\%1.obj >>%OUTDIR%\link.sc
+goto :EOF
+
+:GccCompile
+:: GCC Compile
+echo on
+gcc -mthreads -Wall -std=gnu99 -gdwarf-2 -g3 %OPTS% -I%OUTDIR% -I. -I./glob -I./w32/include -DWINDOWS32 -DHAVE_CONFIG_H %EXTRAS% -o %OUTDIR%\%1.o -c %1.c
+@echo off
+goto :EOF
+
+:Link
+echo Linking %OUTDIR%/%MAKE%.exe
+if "%COMPILER%" == "gcc" goto GccLink
+
+:: MSVC Link
+echo %GUILELIBS% kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib >>%OUTDIR%\link.sc
+echo on
+link.exe /NOLOGO /SUBSYSTEM:console /PDB:%OUTDIR%\%MAKE%.pdb %LINKOPTS% /OUT:%OUTDIR%\%MAKE%.exe @%OUTDIR%\link.sc
+@echo off
+goto :EOF
+
+:GccLink
+:: GCC Link
+echo on
+gcc -mthreads -gdwarf-2 -g3 -o %OUTDIR%\%MAKE%.exe %OUTDIR%\variable.o %OUTDIR%\rule.o %OUTDIR%\remote-stub.o %OUTDIR%\commands.o %OUTDIR%\file.o %OUTDIR%\getloadavg.o %OUTDIR%\default.o %OUTDIR%\signame.o %OUTDIR%\expand.o %OUTDIR%\dir.o %OUTDIR%\main.o %OUTDIR%\getopt1.o %OUTDIR%\guile.o %OUTDIR%\job.o %OUTDIR%\output.o %OUTDIR%\read.o %OUTDIR%\version.o %OUTDIR%\getopt.o %OUTDIR%\arscan.o %OUTDIR%\remake.o %OUTDIR%\misc.o %OUTDIR%\hash.o %OUTDIR%\strcache.o %OUTDIR%\ar.o %OUTDIR%\function.o %OUTDIR%\vpath.o %OUTDIR%\implicit.o %OUTDIR%\loadapi.o %OUTDIR%\load.o %OUTDIR%\glob\glob.o %OUTDIR%\glob\fnmatch.o %OUTDIR%\w32\pathstuff.o %OUTDIR%\w32\compat\posixfcn.o %OUTDIR%\w32\w32os.o %OUTDIR%\w32\subproc\misc.o %OUTDIR%\w32\subproc\sub_proc.o %OUTDIR%\w32\subproc\w32err.o %GUILELIBS% -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid -lodbc32 -lodbccp32 -Wl,--out-implib=%OUTDIR%\libgnumake-1.dll.a
+@echo off
+goto :EOF
+
+:ConfigSCM
+echo Generating config from SCM templates
+sed -n "s/^AC_INIT(\[GNU make\],\[\([^]]\+\)\].*/s,%%VERSION%%,\1,g/p" configure.ac > %OUTDIR%\config.h.W32.sed
+echo s,%%PACKAGE%%,make,g >> %OUTDIR%\config.h.W32.sed
+sed -f %OUTDIR%\config.h.W32.sed config.h.W32.template > config.h.W32
+echo static const char *const GUILE_module_defn = ^" \> gmk-default.h
+sed -e "s/;.*//" -e "/^[ \t]*$/d" -e "s/\"/\\\\\"/g" -e "s/$/ \\\/" gmk-default.scm >> gmk-default.h
+echo ^";>> gmk-default.h
+goto :EOF
+
+:ChkGuile
+if not "%OS%" == "Windows_NT" goto NoGuile
+pkg-config --help > %OUTDIR%\guile.tmp 2> NUL
+if ERRORLEVEL 1 goto NoPkgCfg
+
+echo Checking for Guile 2.0
+if not "%COMPILER%" == "gcc" set PKGMSC=--msvc-syntax
+pkg-config --cflags --short-errors "guile-2.0" > %OUTDIR%\guile.tmp
+if not ERRORLEVEL 1 set /P GUILECFLAGS= < %OUTDIR%\guile.tmp
+
+pkg-config --libs --static --short-errors %PKGMSC% "guile-2.0" > %OUTDIR%\guile.tmp
+if not ERRORLEVEL 1 set /P GUILELIBS= < %OUTDIR%\guile.tmp
+
+if not "%GUILECFLAGS%" == "" goto GuileDone
+
+echo Checking for Guile 1.8
+pkg-config --cflags --short-errors "guile-1.8" > %OUTDIR%\guile.tmp
+if not ERRORLEVEL 1 set /P GUILECFLAGS= < %OUTDIR%\guile.tmp
+
+pkg-config --libs --static --short-errors %PKGMSC% "guile-1.8" > %OUTDIR%\guile.tmp
+if not ERRORLEVEL 1 set /P GUILELIBS= < %OUTDIR%\guile.tmp
+
+if not "%GUILECFLAGS%" == "" goto GuileDone
+
+echo No Guile found, building without Guile
+goto GuileDone
+
+:NoPkgCfg
+echo pkg-config not found, building without Guile
+
+:GuileDone
+if "%GUILECFLAGS%" == "" goto :EOF
+
+echo Guile found, building with Guile
+set "GUILECFLAGS=%GUILECFLAGS% -DHAVE_GUILE"
+goto :EOF
+
+:Usage
+echo Usage: %0 [options] [gcc]
+echo Options:
+echo. --debug For GCC only, make a debug build
+echo. (MSVC build always makes both debug and release)
+echo. --without-guile Do not compile Guile support even if found
+echo. --help Display these instructions and exit
+goto :EOF
+
+:Reset
+set COMPILER=
+set DEBUG=
+set GUILE=
+set GUILECFLAGS=
+set GUILELIBS=
+set LINKOPTS=
+set MAKE=
+set NOGUILE=
+set OPTS=
+set OUTDIR=
+set PKGMSC=
+goto :EOF
diff --git a/commands.c b/commands.c
new file mode 100644
index 0000000..124b93e
--- /dev/null
+++ b/commands.c
@@ -0,0 +1,710 @@
+/* Command processing for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "dep.h"
+#include "variable.h"
+#include "job.h"
+#include "commands.h"
+#ifdef WINDOWS32
+#include <windows.h>
+#include "w32err.h"
+#endif
+
+#if VMS
+# define FILE_LIST_SEPARATOR (vms_comma_separator ? ',' : ' ')
+#else
+# define FILE_LIST_SEPARATOR ' '
+#endif
+
+#ifndef HAVE_UNISTD_H
+int getpid ();
+#endif
+
+
+static unsigned long
+dep_hash_1 (const void *key)
+{
+ const struct dep *d = key;
+ return_STRING_HASH_1 (dep_name (d));
+}
+
+static unsigned long
+dep_hash_2 (const void *key)
+{
+ const struct dep *d = key;
+ return_STRING_HASH_2 (dep_name (d));
+}
+
+static int
+dep_hash_cmp (const void *x, const void *y)
+{
+ const struct dep *dx = x;
+ const struct dep *dy = y;
+ return strcmp (dep_name (dx), dep_name (dy));
+}
+
+/* Set FILE's automatic variables up. */
+
+void
+set_file_variables (struct file *file)
+{
+ struct dep *d;
+ const char *at, *percent, *star, *less;
+
+#ifndef NO_ARCHIVES
+ /* If the target is an archive member 'lib(member)',
+ then $@ is 'lib' and $% is 'member'. */
+
+ if (ar_name (file->name))
+ {
+ unsigned int len;
+ const char *cp;
+ char *p;
+
+ cp = strchr (file->name, '(');
+ p = alloca (cp - file->name + 1);
+ memcpy (p, file->name, cp - file->name);
+ p[cp - file->name] = '\0';
+ at = p;
+ len = strlen (cp + 1);
+ p = alloca (len);
+ memcpy (p, cp + 1, len - 1);
+ p[len - 1] = '\0';
+ percent = p;
+ }
+ else
+#endif /* NO_ARCHIVES. */
+ {
+ at = file->name;
+ percent = "";
+ }
+
+ /* $* is the stem from an implicit or static pattern rule. */
+ if (file->stem == 0)
+ {
+ /* In Unix make, $* is set to the target name with
+ any suffix in the .SUFFIXES list stripped off for
+ explicit rules. We store this in the 'stem' member. */
+ const char *name;
+ unsigned int len;
+
+#ifndef NO_ARCHIVES
+ if (ar_name (file->name))
+ {
+ name = strchr (file->name, '(') + 1;
+ len = strlen (name) - 1;
+ }
+ else
+#endif
+ {
+ name = file->name;
+ len = strlen (name);
+ }
+
+ for (d = enter_file (strcache_add (".SUFFIXES"))->deps; d ; d = d->next)
+ {
+ unsigned int slen = strlen (dep_name (d));
+ if (len > slen && strneq (dep_name (d), name + (len - slen), slen))
+ {
+ file->stem = strcache_add_len (name, len - slen);
+ break;
+ }
+ }
+ if (d == 0)
+ file->stem = "";
+ }
+ star = file->stem;
+
+ /* $< is the first not order-only dependency. */
+ less = "";
+ for (d = file->deps; d != 0; d = d->next)
+ if (!d->ignore_mtime)
+ {
+ if (!d->need_2nd_expansion)
+ less = dep_name (d);
+ break;
+ }
+
+ if (file->cmds == default_file->cmds)
+ /* This file got its commands from .DEFAULT.
+ In this case $< is the same as $@. */
+ less = at;
+
+#define DEFINE_VARIABLE(name, len, value) \
+ (void) define_variable_for_file (name,len,value,o_automatic,0,file)
+
+ /* Define the variables. */
+
+ DEFINE_VARIABLE ("<", 1, less);
+ DEFINE_VARIABLE ("*", 1, star);
+ DEFINE_VARIABLE ("@", 1, at);
+ DEFINE_VARIABLE ("%", 1, percent);
+
+ /* Compute the values for $^, $+, $?, and $|. */
+
+ {
+ static char *plus_value=0, *bar_value=0, *qmark_value=0;
+ static unsigned int plus_max=0, bar_max=0, qmark_max=0;
+
+ unsigned int qmark_len, plus_len, bar_len;
+ char *cp;
+ char *caret_value;
+ char *qp;
+ char *bp;
+ unsigned int len;
+
+ struct hash_table dep_hash;
+ void **slot;
+
+ /* Compute first the value for $+, which is supposed to contain
+ duplicate dependencies as they were listed in the makefile. */
+
+ plus_len = 0;
+ bar_len = 0;
+ for (d = file->deps; d != 0; d = d->next)
+ {
+ if (!d->need_2nd_expansion)
+ {
+ if (d->ignore_mtime)
+ bar_len += strlen (dep_name (d)) + 1;
+ else
+ plus_len += strlen (dep_name (d)) + 1;
+ }
+ }
+
+ if (bar_len == 0)
+ bar_len++;
+
+ if (plus_len == 0)
+ plus_len++;
+
+ if (plus_len > plus_max)
+ plus_value = xrealloc (plus_value, plus_max = plus_len);
+
+ cp = plus_value;
+
+ qmark_len = plus_len + 1; /* Will be this or less. */
+ for (d = file->deps; d != 0; d = d->next)
+ if (! d->ignore_mtime && ! d->need_2nd_expansion)
+ {
+ const char *c = dep_name (d);
+
+#ifndef NO_ARCHIVES
+ if (ar_name (c))
+ {
+ c = strchr (c, '(') + 1;
+ len = strlen (c) - 1;
+ }
+ else
+#endif
+ len = strlen (c);
+
+ memcpy (cp, c, len);
+ cp += len;
+ *cp++ = FILE_LIST_SEPARATOR;
+ if (! (d->changed || always_make_flag))
+ qmark_len -= len + 1; /* Don't space in $? for this one. */
+ }
+
+ /* Kill the last space and define the variable. */
+
+ cp[cp > plus_value ? -1 : 0] = '\0';
+ DEFINE_VARIABLE ("+", 1, plus_value);
+
+ /* Compute the values for $^, $?, and $|. */
+
+ cp = caret_value = plus_value; /* Reuse the buffer; it's big enough. */
+
+ if (qmark_len > qmark_max)
+ qmark_value = xrealloc (qmark_value, qmark_max = qmark_len);
+ qp = qmark_value;
+
+ if (bar_len > bar_max)
+ bar_value = xrealloc (bar_value, bar_max = bar_len);
+ bp = bar_value;
+
+ /* Make sure that no dependencies are repeated in $^, $?, and $|. It
+ would be natural to combine the next two loops but we can't do it
+ because of a situation where we have two dep entries, the first
+ is order-only and the second is normal (see below). */
+
+ hash_init (&dep_hash, 500, dep_hash_1, dep_hash_2, dep_hash_cmp);
+
+ for (d = file->deps; d != 0; d = d->next)
+ {
+ if (d->need_2nd_expansion)
+ continue;
+
+ slot = hash_find_slot (&dep_hash, d);
+ if (HASH_VACANT (*slot))
+ hash_insert_at (&dep_hash, d, slot);
+ else
+ {
+ /* Check if the two prerequisites have different ignore_mtime.
+ If so then we need to "upgrade" one that is order-only. */
+
+ struct dep* hd = (struct dep*) *slot;
+
+ if (d->ignore_mtime != hd->ignore_mtime)
+ d->ignore_mtime = hd->ignore_mtime = 0;
+ }
+ }
+
+ for (d = file->deps; d != 0; d = d->next)
+ {
+ const char *c;
+
+ if (d->need_2nd_expansion || hash_find_item (&dep_hash, d) != d)
+ continue;
+
+ c = dep_name (d);
+#ifndef NO_ARCHIVES
+ if (ar_name (c))
+ {
+ c = strchr (c, '(') + 1;
+ len = strlen (c) - 1;
+ }
+ else
+#endif
+ len = strlen (c);
+
+ if (d->ignore_mtime)
+ {
+ memcpy (bp, c, len);
+ bp += len;
+ *bp++ = FILE_LIST_SEPARATOR;
+ }
+ else
+ {
+ memcpy (cp, c, len);
+ cp += len;
+ *cp++ = FILE_LIST_SEPARATOR;
+ if (d->changed || always_make_flag)
+ {
+ memcpy (qp, c, len);
+ qp += len;
+ *qp++ = FILE_LIST_SEPARATOR;
+ }
+ }
+ }
+
+ hash_free (&dep_hash, 0);
+
+ /* Kill the last spaces and define the variables. */
+
+ cp[cp > caret_value ? -1 : 0] = '\0';
+ DEFINE_VARIABLE ("^", 1, caret_value);
+
+ qp[qp > qmark_value ? -1 : 0] = '\0';
+ DEFINE_VARIABLE ("?", 1, qmark_value);
+
+ bp[bp > bar_value ? -1 : 0] = '\0';
+ DEFINE_VARIABLE ("|", 1, bar_value);
+ }
+
+#undef DEFINE_VARIABLE
+}
+
+/* Chop CMDS up into individual command lines if necessary.
+ Also set the 'lines_flags' and 'any_recurse' members. */
+
+void
+chop_commands (struct commands *cmds)
+{
+ unsigned int nlines, idx;
+ char **lines;
+
+ /* If we don't have any commands,
+ or we already parsed them, never mind. */
+
+ if (!cmds || cmds->command_lines != 0)
+ return;
+
+ /* Chop CMDS->commands up into lines in CMDS->command_lines. */
+
+ if (one_shell)
+ {
+ int l = strlen (cmds->commands);
+
+ nlines = 1;
+ lines = xmalloc (nlines * sizeof (char *));
+ lines[0] = xstrdup (cmds->commands);
+
+ /* Strip the trailing newline. */
+ if (l > 0 && lines[0][l-1] == '\n')
+ lines[0][l-1] = '\0';
+ }
+ else
+ {
+ const char *p;
+
+ nlines = 5;
+ lines = xmalloc (nlines * sizeof (char *));
+ idx = 0;
+ p = cmds->commands;
+ while (*p != '\0')
+ {
+ const char *end = p;
+ find_end:;
+ end = strchr (end, '\n');
+ if (end == 0)
+ end = p + strlen (p);
+ else if (end > p && end[-1] == '\\')
+ {
+ int backslash = 1;
+ const char *b;
+ for (b = end - 2; b >= p && *b == '\\'; --b)
+ backslash = !backslash;
+ if (backslash)
+ {
+ ++end;
+ goto find_end;
+ }
+ }
+
+ if (idx == nlines)
+ {
+ nlines += 2;
+ lines = xrealloc (lines, nlines * sizeof (char *));
+ }
+ lines[idx++] = xstrndup (p, end - p);
+ p = end;
+ if (*p != '\0')
+ ++p;
+ }
+
+ if (idx != nlines)
+ {
+ nlines = idx;
+ lines = xrealloc (lines, nlines * sizeof (char *));
+ }
+ }
+
+ /* Finally, set the corresponding CMDS->lines_flags elements and the
+ CMDS->any_recurse flag. */
+
+ if (nlines > USHRT_MAX)
+ ON (fatal, &cmds->fileinfo, _("Recipe has too many lines (%ud)"), nlines);
+
+ cmds->ncommand_lines = nlines;
+ cmds->command_lines = lines;
+
+ cmds->any_recurse = 0;
+ cmds->lines_flags = xmalloc (nlines);
+
+ for (idx = 0; idx < nlines; ++idx)
+ {
+ unsigned char flags = 0;
+ const char *p = lines[idx];
+
+ while (ISBLANK (*p) || *p == '-' || *p == '@' || *p == '+')
+ switch (*(p++))
+ {
+ case '+':
+ flags |= COMMANDS_RECURSE;
+ break;
+ case '@':
+ flags |= COMMANDS_SILENT;
+ break;
+ case '-':
+ flags |= COMMANDS_NOERROR;
+ break;
+ }
+
+ /* If no explicit '+' was given, look for MAKE variable references. */
+ if (!(flags & COMMANDS_RECURSE)
+ && (strstr (p, "$(MAKE)") != 0 || strstr (p, "${MAKE}") != 0))
+ flags |= COMMANDS_RECURSE;
+
+ cmds->lines_flags[idx] = flags;
+ cmds->any_recurse |= flags & COMMANDS_RECURSE ? 1 : 0;
+ }
+}
+
+/* Execute the commands to remake FILE. If they are currently executing,
+ return or have already finished executing, just return. Otherwise,
+ fork off a child process to run the first command line in the sequence. */
+
+void
+execute_file_commands (struct file *file)
+{
+ const char *p;
+
+ /* Don't go through all the preparations if
+ the commands are nothing but whitespace. */
+
+ for (p = file->cmds->commands; *p != '\0'; ++p)
+ if (!ISSPACE (*p) && *p != '-' && *p != '@' && *p != '+')
+ break;
+ if (*p == '\0')
+ {
+ /* If there are no commands, assume everything worked. */
+ set_command_state (file, cs_running);
+ file->update_status = us_success;
+ notice_finished_file (file);
+ return;
+ }
+
+ /* First set the automatic variables according to this file. */
+
+ initialize_file_variables (file, 0);
+
+ set_file_variables (file);
+
+ /* If this is a loaded dynamic object, unload it before remaking.
+ Some systems don't support overwriting a loaded object. */
+ if (file->loaded)
+ unload_file (file->name);
+
+ /* Start the commands running. */
+ new_job (file);
+}
+
+/* This is set while we are inside fatal_error_signal,
+ so things can avoid nonreentrant operations. */
+
+int handling_fatal_signal = 0;
+
+/* Handle fatal signals. */
+
+RETSIGTYPE
+fatal_error_signal (int sig)
+{
+#ifdef __MSDOS__
+ extern int dos_status, dos_command_running;
+
+ if (dos_command_running)
+ {
+ /* That was the child who got the signal, not us. */
+ dos_status |= (sig << 8);
+ return;
+ }
+ remove_intermediates (1);
+ exit (EXIT_FAILURE);
+#else /* not __MSDOS__ */
+#ifdef _AMIGA
+ remove_intermediates (1);
+ if (sig == SIGINT)
+ fputs (_("*** Break.\n"), stderr);
+
+ exit (10);
+#else /* not Amiga */
+#ifdef WINDOWS32
+ extern HANDLE main_thread;
+
+ /* Windows creates a sperate thread for handling Ctrl+C, so we need
+ to suspend the main thread, or else we will have race conditions
+ when both threads call reap_children. */
+ if (main_thread)
+ {
+ DWORD susp_count = SuspendThread (main_thread);
+
+ if (susp_count != 0)
+ fprintf (stderr, "SuspendThread: suspend count = %ld\n", susp_count);
+ else if (susp_count == (DWORD)-1)
+ {
+ DWORD ierr = GetLastError ();
+
+ fprintf (stderr, "SuspendThread: error %ld: %s\n",
+ ierr, map_windows32_error_to_string (ierr));
+ }
+ }
+#endif
+ handling_fatal_signal = 1;
+
+ /* Set the handling for this signal to the default.
+ It is blocked now while we run this handler. */
+ signal (sig, SIG_DFL);
+
+ /* A termination signal won't be sent to the entire
+ process group, but it means we want to kill the children. */
+
+ if (sig == SIGTERM)
+ {
+ struct child *c;
+ for (c = children; c != 0; c = c->next)
+ if (!c->remote)
+ (void) kill (c->pid, SIGTERM);
+ }
+
+ /* If we got a signal that means the user
+ wanted to kill make, remove pending targets. */
+
+ if (sig == SIGTERM || sig == SIGINT
+#ifdef SIGHUP
+ || sig == SIGHUP
+#endif
+#ifdef SIGQUIT
+ || sig == SIGQUIT
+#endif
+ )
+ {
+ struct child *c;
+
+ /* Remote children won't automatically get signals sent
+ to the process group, so we must send them. */
+ for (c = children; c != 0; c = c->next)
+ if (c->remote)
+ (void) remote_kill (c->pid, sig);
+
+ for (c = children; c != 0; c = c->next)
+ delete_child_targets (c);
+
+ /* Clean up the children. We don't just use the call below because
+ we don't want to print the "Waiting for children" message. */
+ while (job_slots_used > 0)
+ reap_children (1, 0);
+ }
+ else
+ /* Wait for our children to die. */
+ while (job_slots_used > 0)
+ reap_children (1, 1);
+
+ /* Delete any non-precious intermediate files that were made. */
+
+ remove_intermediates (1);
+
+#ifdef SIGQUIT
+ if (sig == SIGQUIT)
+ /* We don't want to send ourselves SIGQUIT, because it will
+ cause a core dump. Just exit instead. */
+ exit (MAKE_TROUBLE);
+#endif
+
+#ifdef WINDOWS32
+ if (main_thread)
+ CloseHandle (main_thread);
+ /* Cannot call W32_kill with a pid (it needs a handle). The exit
+ status of 130 emulates what happens in Bash. */
+ exit (130);
+#else
+ /* Signal the same code; this time it will really be fatal. The signal
+ will be unblocked when we return and arrive then to kill us. */
+ if (kill (getpid (), sig) < 0)
+ pfatal_with_name ("kill");
+#endif /* not WINDOWS32 */
+#endif /* not Amiga */
+#endif /* not __MSDOS__ */
+}
+
+/* Delete FILE unless it's precious or not actually a file (phony),
+ and it has changed on disk since we last stat'd it. */
+
+static void
+delete_target (struct file *file, const char *on_behalf_of)
+{
+ struct stat st;
+ int e;
+
+ if (file->precious || file->phony)
+ return;
+
+#ifndef NO_ARCHIVES
+ if (ar_name (file->name))
+ {
+ time_t file_date = (file->last_mtime == NONEXISTENT_MTIME
+ ? (time_t) -1
+ : (time_t) FILE_TIMESTAMP_S (file->last_mtime));
+ if (ar_member_date (file->name) != file_date)
+ {
+ if (on_behalf_of)
+ OSS (error, NILF,
+ _("*** [%s] Archive member '%s' may be bogus; not deleted"),
+ on_behalf_of, file->name);
+ else
+ OS (error, NILF,
+ _("*** Archive member '%s' may be bogus; not deleted"),
+ file->name);
+ }
+ return;
+ }
+#endif
+
+ EINTRLOOP (e, stat (file->name, &st));
+ if (e == 0
+ && S_ISREG (st.st_mode)
+ && FILE_TIMESTAMP_STAT_MODTIME (file->name, st) != file->last_mtime)
+ {
+ if (on_behalf_of)
+ OSS (error, NILF,
+ _("*** [%s] Deleting file '%s'"), on_behalf_of, file->name);
+ else
+ OS (error, NILF, _("*** Deleting file '%s'"), file->name);
+ if (unlink (file->name) < 0
+ && errno != ENOENT) /* It disappeared; so what. */
+ perror_with_name ("unlink: ", file->name);
+ }
+}
+
+
+/* Delete all non-precious targets of CHILD unless they were already deleted.
+ Set the flag in CHILD to say they've been deleted. */
+
+void
+delete_child_targets (struct child *child)
+{
+ struct dep *d;
+
+ if (child->deleted)
+ return;
+
+ /* Delete the target file if it changed. */
+ delete_target (child->file, NULL);
+
+ /* Also remove any non-precious targets listed in the 'also_make' member. */
+ for (d = child->file->also_make; d != 0; d = d->next)
+ delete_target (d->file, child->file->name);
+
+ child->deleted = 1;
+}
+
+/* Print out the commands in CMDS. */
+
+void
+print_commands (const struct commands *cmds)
+{
+ const char *s;
+
+ fputs (_("# recipe to execute"), stdout);
+
+ if (cmds->fileinfo.filenm == 0)
+ puts (_(" (built-in):"));
+ else
+ printf (_(" (from '%s', line %lu):\n"),
+ cmds->fileinfo.filenm, cmds->fileinfo.lineno);
+
+ s = cmds->commands;
+ while (*s != '\0')
+ {
+ const char *end;
+ int bs;
+
+ /* Print one full logical recipe line: find a non-escaped newline. */
+ for (end = s, bs = 0; *end != '\0'; ++end)
+ {
+ if (*end == '\n' && !bs)
+ break;
+
+ bs = *end == '\\' ? !bs : 0;
+ }
+
+ printf ("%c%.*s\n", cmd_prefix, (int) (end - s), s);
+
+ s = end + (end[0] == '\n');
+ }
+}
diff --git a/commands.h b/commands.h
new file mode 100644
index 0000000..18d8c28
--- /dev/null
+++ b/commands.h
@@ -0,0 +1,42 @@
+/* Definition of data structures describing shell commands for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Structure that gives the commands to make a file
+ and information about where these commands came from. */
+
+struct commands
+ {
+ floc fileinfo; /* Where commands were defined. */
+ char *commands; /* Commands text. */
+ char **command_lines; /* Commands chopped up into lines. */
+ unsigned char *lines_flags; /* One set of flag bits for each line. */
+ unsigned short ncommand_lines;/* Number of command lines. */
+ char recipe_prefix; /* Recipe prefix for this command set. */
+ unsigned int any_recurse:1; /* Nonzero if any 'lines_flags' elt has */
+ /* the COMMANDS_RECURSE bit set. */
+ };
+
+/* Bits in 'lines_flags'. */
+#define COMMANDS_RECURSE 1 /* Recurses: + or $(MAKE). */
+#define COMMANDS_SILENT 2 /* Silent: @. */
+#define COMMANDS_NOERROR 4 /* No errors: -. */
+
+RETSIGTYPE fatal_error_signal (int sig);
+void execute_file_commands (struct file *file);
+void print_commands (const struct commands *cmds);
+void delete_child_targets (struct child *child);
+void chop_commands (struct commands *cmds);
+void set_file_variables (struct file *file);
diff --git a/config.ami.template b/config.ami.template
new file mode 100644
index 0000000..4c5bb78
--- /dev/null
+++ b/config.ami.template
@@ -0,0 +1,337 @@
+/* config.h -- hand-massaged for Amiga -*-C-*-
+Copyright (C) 1995-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Define if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+/* #undef _ALL_SOURCE */
+#endif
+
+/* Define if using alloca.c. */
+#define C_ALLOCA
+
+/* Define if the closedir function returns void instead of int. */
+/* #undef CLOSEDIR_VOID */
+
+/* Define to empty if the keyword does not work. */
+/* #undef const */
+
+/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
+ This function is required for alloca.c support on those systems. */
+/* #undef CRAY_STACKSEG_END */
+
+/* Define for DGUX with <sys/dg_sys_info.h>. */
+/* #undef DGUX */
+
+/* Define if the 'getloadavg' function needs to be run setuid or setgid. */
+/* #undef GETLOADAVG_PRIVILEGED */
+
+/* Define to 'unsigned long' or 'unsigned long long'
+ if <inttypes.h> doesn't define. */
+#define uintmax_t unsigned long
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#define gid_t int
+
+/* Define if you have alloca, as a function or macro. */
+/* #undef HAVE_ALLOCA */
+
+/* Define if you have <alloca.h> and it should be used (not on Ultrix). */
+/* #undef HAVE_ALLOCA_H */
+
+/* Define if your system has a working fnmatch function. */
+/* #undef HAVE_FNMATCH */
+
+/* Define if your system has its own 'getloadavg' function. */
+/* #undef HAVE_GETLOADAVG */
+
+/* Define if you have the getmntent function. */
+/* #undef HAVE_GETMNTENT */
+
+/* Embed GNU Guile support */
+/* #undef HAVE_GUILE */
+
+/* Define if the 'long double' type works. */
+/* #undef HAVE_LONG_DOUBLE */
+
+/* Define if you support file names longer than 14 characters. */
+#define HAVE_LONG_FILE_NAMES 1
+
+/* Define if you have a working 'mmap' system call. */
+/* #undef HAVE_MMAP */
+
+/* Define if system calls automatically restart after interruption
+ by a signal. */
+/* #undef HAVE_RESTARTABLE_SYSCALLS */
+
+/* Define if your struct stat has st_blksize. */
+/* #undef HAVE_ST_BLKSIZE */
+
+/* Define if your struct stat has st_blocks. */
+/* #undef HAVE_ST_BLOCKS */
+
+/* Define if you have the strcoll function and it is properly defined. */
+#define HAVE_STRCOLL 1
+
+/* Define if your struct stat has st_rdev. */
+#define HAVE_ST_RDEV 1
+
+/* Define if you have the strftime function. */
+#define HAVE_STRFTIME 1
+
+/* Define if you have <sys/wait.h> that is POSIX.1 compatible. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define if your struct tm has tm_zone. */
+/* #undef HAVE_TM_ZONE */
+
+/* Define if you don't have tm_zone but do have the external array
+ tzname. */
+#define HAVE_TZNAME 1
+
+/* Define if you have <unistd.h>. */
+#define HAVE_UNISTD_H 1
+
+/* Define if utime(file, NULL) sets file's timestamp to the present. */
+/* #undef HAVE_UTIME_NULL */
+
+/* Define if you have the wait3 system call. */
+/* #undef HAVE_WAIT3 */
+
+/* Define if on MINIX. */
+/* #undef _MINIX */
+
+/* Define if your struct nlist has an n_un member. */
+/* #undef NLIST_NAME_UNION */
+
+/* Define if you have <nlist.h>. */
+/* #undef NLIST_STRUCT */
+
+/* Define if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#define pid_t int
+
+/* Define if the system does not provide POSIX.1 features except
+ with this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define if you need to in order for stat and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Define as the return type of signal handlers (int or void). */
+#define RETSIGTYPE void
+
+/* Define if the setvbuf function takes the buffering type as its second
+ argument and the buffer pointer as the third, as on System V
+ before release 3. */
+/* #undef SETVBUF_REVERSED */
+
+/* If using the C implementation of alloca, define if you know the
+ direction of stack growth for your system; otherwise it will be
+ automatically deduced at run-time.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown
+ */
+#define STACK_DIRECTION -1
+
+/* Define if the 'S_IS*' macros in <sys/stat.h> do not work properly. */
+/* #undef STAT_MACROS_BROKEN */
+
+/* Define if you have the ANSI C header files. */
+#define STDC_HEADERS
+
+/* Define on System V Release 4. */
+/* #undef SVR4 */
+
+/* Define if 'sys_siglist' is declared by <signal.h>. */
+/* #undef SYS_SIGLIST_DECLARED */
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#define uid_t int
+
+/* Define for Encore UMAX. */
+/* #undef UMAX */
+
+/* Define for Encore UMAX 4.3 that has <inq_status/cpustats.h>
+ instead of <sys/cpustats.h>. */
+/* #undef UMAX4_3 */
+
+/* Name of this package (needed by automake) */
+#define PACKAGE "%PACKAGE%"
+
+/* Version of this package (needed by automake) */
+#define VERSION "%VERSION%"
+
+/* Define to the name of the SCCS 'get' command. */
+#define SCCS_GET "get"
+
+/* Define this if the SCCS 'get' command understands the '-G<file>' option. */
+/* #undef SCCS_GET_MINUS_G */
+
+/* Define this to enable job server support in GNU make. */
+/* #undef MAKE_JOBSERVER */
+
+/* Define to be the nanoseconds member of struct stat's st_mtim,
+ if it exists. */
+/* #undef ST_MTIM_NSEC */
+
+/* Define this if the C library defines the variable 'sys_siglist'. */
+/* #undef HAVE_SYS_SIGLIST */
+
+/* Define this if the C library defines the variable '_sys_siglist'. */
+/* #undef HAVE__SYS_SIGLIST */
+
+/* Define this if you have the 'union wait' type in <sys/wait.h>. */
+/* #undef HAVE_UNION_WAIT */
+
+/* Define if you have the dup2 function. */
+/* #undef HAVE_DUP2 */
+
+/* Define if you have the getcwd function. */
+#define HAVE_GETCWD 1
+
+/* Define if you have the getgroups function. */
+/* #undef HAVE_GETGROUPS */
+
+/* Define if you have the gethostbyname function. */
+/* #undef HAVE_GETHOSTBYNAME */
+
+/* Define if you have the gethostname function. */
+/* #undef HAVE_GETHOSTNAME */
+
+/* Define if you have the memmove function. */
+#define HAVE_MEMMOVE 1
+
+/* Define if you have the mktemp function. */
+#define HAVE_MKTEMP 1
+
+/* Define if you have the psignal function. */
+/* #undef HAVE_PSIGNAL */
+
+/* Define if you have the pstat_getdynamic function. */
+/* #undef HAVE_PSTAT_GETDYNAMIC */
+
+/* Define if you have the setegid function. */
+/* #undef HAVE_SETEGID */
+
+/* Define if you have the seteuid function. */
+/* #undef HAVE_SETEUID */
+
+/* Define if you have the setlinebuf function. */
+/* #undef HAVE_SETLINEBUF */
+
+/* Define if you have the setregid function. */
+/* #undef HAVE_SETREGID */
+
+/* Define if you have the setreuid function. */
+/* #undef HAVE_SETREUID */
+
+/* Define if you have the sigsetmask function. */
+/* #undef HAVE_SIGSETMASK */
+
+/* Define if you have the socket function. */
+/* #undef HAVE_SOCKET */
+
+/* Define to 1 if you have the strcasecmp function. */
+/* #undef HAVE_STRCASECMP */
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define if you have the strerror function. */
+#define HAVE_STRERROR 1
+
+/* Define if you have the strsignal function. */
+/* #undef HAVE_STRSIGNAL */
+
+/* Define if you have the wait3 function. */
+/* #undef HAVE_WAIT3 */
+
+/* Define if you have the waitpid function. */
+/* #undef HAVE_WAITPID */
+
+/* Define if you have the <dirent.h> header file. */
+#define HAVE_DIRENT_H 1
+
+/* Define if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define if you have the <mach/mach.h> header file. */
+/* #undef HAVE_MACH_MACH_H */
+
+/* Define if you have the <memory.h> header file. */
+/* #undef HAVE_MEMORY_H */
+
+/* Define if you have the <ndir.h> header file. */
+/* #undef HAVE_NDIR_H */
+
+/* Define if you have the <stdlib.h> header file. */
+/* #undef HAVE_STDLIB_H */
+
+/* Define if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define if you have the <sys/dir.h> header file. */
+#define HAVE_SYS_DIR_H 1
+
+/* Define if you have the <sys/ndir.h> header file. */
+/* #undef HAVE_SYS_NDIR_H */
+
+/* Define if you have the <sys/param.h> header file. */
+/* #undef HAVE_SYS_PARAM_H */
+
+/* Define if you have the <sys/timeb.h> header file. */
+/* #undef HAVE_SYS_TIMEB_H */
+
+/* Define if you have the <sys/wait.h> header file. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define if you have the dgc library (-ldgc). */
+/* #undef HAVE_LIBDGC */
+
+/* Define if you have the kstat library (-lkstat). */
+/* #undef HAVE_LIBKSTAT */
+
+/* Define to 1 if you have the `isatty' function. */
+/* #undef HAVE_ISATTY */
+
+/* Define to 1 if you have the `ttyname' function. */
+/* #undef HAVE_TTYNAME */
+
+/* Define if you have the sun library (-lsun). */
+/* #undef HAVE_LIBSUN */
+
+/* Output sync sypport */
+#define NO_OUTPUT_SYNC
+
+/* Define for Case Insensitve behavior */
+#define HAVE_CASE_INSENSITIVE_FS
+
+/* Build host information. */
+#define MAKE_HOST "Amiga"
diff --git a/config.h-vms.template b/config.h-vms.template
new file mode 100644
index 0000000..2a4a943
--- /dev/null
+++ b/config.h-vms.template
@@ -0,0 +1,432 @@
+/* config.h-vms. Generated by hand by Klaus Kämpf <kkaempf@rmi.de> -*-C-*-
+
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* config.h. Generated automatically by configure. */
+/* config.h.in. Generated automatically from configure.ac by autoheader. */
+
+/* Pull in types.h here to get __CRTL_VER defined for old versions of the
+ compiler which don't define it. */
+#ifdef __DECC
+# include <types.h>
+#endif
+
+/* Define to 1 if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+/* #undef _ALL_SOURCE */
+#endif
+
+/* Define to 1 if NLS is requested. */
+/* #undef ENABLE_NLS */
+
+/* Define as 1 if you have dcgettext. */
+/* #undef HAVE_DCGETTEXT */
+
+/* Define as 1 if you have gettext and don't want to use GNU gettext. */
+/* #undef HAVE_GETTEXT */
+
+/* Embed GNU Guile support */
+/* #undef HAVE_GUILE */
+
+/* Define to 1 if your locale.h file contains LC_MESSAGES. */
+/* #undef HAVE_LC_MESSAGES */
+
+/* Define to the installation directory for locales. */
+#define LOCALEDIR ""
+
+/* Define as 1 if you have the stpcpy function. */
+/* #undef HAVE_STPCPY */
+
+/* Define to 1 if the closedir function returns void instead of int. */
+/* #undef CLOSEDIR_VOID */
+
+/* Define to empty if the keyword does not work. */
+/* #undef const */
+
+/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
+ This function is required for alloca.c support on those systems. */
+/* #undef CRAY_STACKSEG_END */
+
+/* Define for DGUX with <sys/dg_sys_info.h>. */
+/* #undef DGUX */
+
+/* Define to 1 if the 'getloadavg' function needs to be run setuid or setgid. */
+/* #undef GETLOADAVG_PRIVILEGED */
+
+/* Define to 'unsigned long' or 'unsigned long long'
+ if <inttypes.h> doesn't define. */
+#define uintmax_t unsigned long
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+/* #undef gid_t */
+
+/* Define to 1 if you have alloca, as a function or macro. */
+#define HAVE_ALLOCA 1
+
+/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix). */
+/* #undef HAVE_ALLOCA_H */
+
+/* Define to 1 if you have the fdopen function. */
+#define HAVE_FDOPEN 1
+
+/* Define to 1 if your system has a working fnmatch function. */
+/* #undef HAVE_FNMATCH */
+
+/* Define to 1 if your system has its own 'getloadavg' function. */
+/* #undef HAVE_GETLOADAVG */
+
+/* Define to 1 if you have the getmntent function. */
+/* #undef HAVE_GETMNTENT */
+
+/* Define to 1 if the 'long double' type works. */
+/* #undef HAVE_LONG_DOUBLE */
+
+/* Define to 1 if you support file names longer than 14 characters. */
+#define HAVE_LONG_FILE_NAMES 1
+
+/* Define to 1 if you have a working 'mmap' system call. */
+/* #undef HAVE_MMAP */
+
+/* Define to 1 if system calls automatically restart after interruption
+ by a signal. */
+/* #undef HAVE_RESTARTABLE_SYSCALLS */
+
+/* Define to 1 if your struct stat has st_blksize. */
+/* #undef HAVE_ST_BLKSIZE */
+
+/* Define to 1 if your struct stat has st_blocks. */
+/* #undef HAVE_ST_BLOCKS */
+
+/* Define to 1 if you have the strcoll function and it is properly defined. */
+/* #undef HAVE_STRCOLL */
+
+/* Define to 1 if you have the strncasecmp' function. */
+#if __CRTL_VER >= 70000000
+#define HAVE_STRNCASECMP 1
+#endif
+
+/* Define to 1 if your struct stat has st_rdev. */
+/* #undef HAVE_ST_RDEV */
+
+/* Define to 1 if you have the strftime function. */
+/* #undef HAVE_STRFTIME */
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to 1 if your struct tm has tm_zone. */
+/* #undef HAVE_TM_ZONE */
+
+/* Define to 1 if you don't have tm_zone but do have the external array
+ tzname. */
+/* #undef HAVE_TZNAME */
+
+/* Define to 1 if you have <unistd.h>. */
+#ifdef __DECC
+#define HAVE_UNISTD_H 1
+#endif
+
+/* Define to 1 if utime(file, NULL) sets file's timestamp to the present. */
+/* #undef HAVE_UTIME_NULL */
+
+/* Define to 1 if you have the wait3 system call. */
+/* #undef HAVE_WAIT3 */
+
+/* Define to 1 if on MINIX. */
+/* #undef _MINIX */
+
+/* Define to 1 if your struct nlist has an n_un member. */
+/* #undef NLIST_NAME_UNION */
+
+/* Define to 1 if you have <nlist.h>. */
+/* #undef NLIST_STRUCT */
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+/* I assume types.h is available for all 5.0 cc/cxx compilers */
+#if __DECC_VER < 50090000
+#define pid_t int
+#endif
+
+/* Define to 1 if the system does not provide POSIX.1 features except
+ with this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define to 1 if you need to in order for stat and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Define as the return type of signal handlers (int or void). */
+#define RETSIGTYPE void
+
+/* Define to 1 if the setvbuf function takes the buffering type as its second
+ argument and the buffer pointer as the third, as on System V
+ before release 3. */
+/* #undef SETVBUF_REVERSED */
+
+/* If using the C implementation of alloca, define if you know the
+ direction of stack growth for your system; otherwise it will be
+ automatically deduced at run-time.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown
+ */
+/* #undef STACK_DIRECTION */
+
+/* Define to 1 if the 'S_IS*' macros in <sys/stat.h> do not work properly. */
+/* #undef STAT_MACROS_BROKEN */
+
+/* Define to 1 if you have the ANSI C header files. */
+/* #undef STDC_HEADERS */
+
+/* Define on System V Release 4. */
+/* #undef SVR4 */
+
+/* Define to 1 if 'sys_siglist' is declared by <signal.h>. */
+/* #undef SYS_SIGLIST_DECLARED */
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#if __DECC_VER < 50090000
+#define uid_t int
+#endif
+
+/* Define for Encore UMAX. */
+/* #undef UMAX */
+
+/* Define for Encore UMAX 4.3 that has <inq_status/cpustats.h>
+ instead of <sys/cpustats.h>. */
+/* #undef UMAX4_3 */
+
+/* Name of this package (needed by automake) */
+#define PACKAGE "%PACKAGE%"
+
+/* Version of this package (needed by automake) */
+#define VERSION "%VERSION%"
+
+/* Define to the name of the SCCS 'get' command. */
+/* #undef SCCS_GET */
+
+/* Define this if the SCCS 'get' command understands the '-G<file>' option. */
+/* #undef SCCS_GET_MINUS_G */
+
+/* Define this to enable job server support in GNU make. */
+/* #undef MAKE_JOBSERVER */
+
+/* Define to be the nanoseconds member of struct stat's st_mtim,
+ if it exists. */
+/* #undef ST_MTIM_NSEC */
+
+/* Define to 1 if the C library defines the variable 'sys_siglist'. */
+/* #undefine HAVE_SYS_SIGLIST */
+
+/* Define to 1 if the C library defines the variable '_sys_siglist'. */
+/* #undef HAVE__SYS_SIGLIST */
+
+/* Define to 1 if you have the 'union wait' type in <sys/wait.h>. */
+/* #undef HAVE_UNION_WAIT */
+
+/* Define to 1 if you have the dup2 function. */
+#define HAVE_DUP2 1
+
+/* Define to 1 if you have the getcwd function. */
+#define HAVE_GETCWD 1
+
+/* Define to 1 if you have the getgroups function. */
+/* #undef HAVE_GETGROUPS */
+
+/* Define to 1 if you have the gethostbyname function. */
+/* #undef HAVE_GETHOSTBYNAME */
+
+/* Define to 1 if you have the gethostname function. */
+/* #undef HAVE_GETHOSTNAME */
+
+/* Define to 1 if you have the memmove function. */
+#define HAVE_MEMMOVE 1
+
+/* Define to 1 if you have the mktemp function. */
+#define HAVE_MKTEMP 1
+
+/* Define to 1 if you have the psignal function. */
+/* #undef HAVE_PSIGNAL */
+
+/* Define to 1 if you have the pstat_getdynamic function. */
+/* #undef HAVE_PSTAT_GETDYNAMIC */
+
+/* Define to 1 if you have the setegid function. */
+/* #undef HAVE_SETEGID */
+
+/* Define to 1 if you have the seteuid function. */
+/* #undef HAVE_SETEUID */
+
+/* Define to 1 if you have the setlinebuf function. */
+/* #undef HAVE_SETLINEBUF */
+
+/* Define to 1 if you have the setregid function. */
+/* #undefine HAVE_SETREGID */
+
+/* Define to 1 if you have the setreuid function. */
+/* #define HAVE_SETREUID */
+
+/* Define to 1 if you have the sigsetmask function. */
+#define HAVE_SIGSETMASK 1
+
+/* Define to 1 if you have the socket function. */
+/* #undef HAVE_SOCKET */
+
+/* Define to 1 if you have the strcasecmp function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define to 1 if you have the strerror function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the strsignal function. */
+/* #undef HAVE_STRSIGNAL */
+
+/* Define to 1 if you have the wait3 function. */
+/* #undef HAVE_WAIT3 */
+
+/* Define to 1 if you have the waitpid function. */
+/* #undef HAVE_WAITPID */
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#define HAVE_DIRENT_H 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#ifdef __DECC
+#define HAVE_FCNTL_H 1
+#endif
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if you have the <mach/mach.h> header file. */
+/* #undef HAVE_MACH_MACH_H */
+
+/* Define to 1 if you have the <memory.h> header file. */
+/* #undef HAVE_MEMORY_H */
+
+/* Define to 1 if you have the <ndir.h> header file. */
+/* #undef HAVE_NDIR_H */
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/dir.h> header file. */
+/* #undef HAVE_SYS_DIR_H */
+
+/* Define to 1 if you have the <sys/ndir.h> header file. */
+/* #undef HAVE_SYS_NDIR_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+/* #undef HAVE_SYS_PARAM_H */
+
+/* Define to 1 if you have the <sys/timeb.h> header file. */
+#ifndef __GNUC__
+#define HAVE_SYS_TIMEB_H 1
+#endif
+
+/* Define to 1 if you have the <sys/wait.h> header file. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to 1 if you have the dgc library (-ldgc). */
+/* #undef HAVE_LIBDGC */
+
+/* Define to 1 if you have the kstat library (-lkstat). */
+/* #undef HAVE_LIBKSTAT *
+
+/* Define to 1 if you have the sun library (-lsun). */
+/* #undef HAVE_LIBSUN */
+
+/* Define to 1 if you have the `isatty' function. */
+/* #undef HAVE_ISATTY */
+
+/* Define to 1 if you have the `ttyname' function. */
+/* #undef HAVE_TTYNAME */
+
+/* Use high resolution file timestamps if nonzero. */
+#define FILE_TIMESTAMP_HI_RES 0
+
+/* Define for case insensitve filenames */
+#define HAVE_CASE_INSENSITIVE_FS 1
+
+/* VMS specific, define it if you want to use case sensitive targets */
+/* #undef WANT_CASE_SENSITIVE_TARGETS */
+
+/* VMS specific, V7.0 has opendir() and friends, so it's undefined */
+/* If you want to use non-VMS code for opendir() etc. on V7.0 and greater
+ define the first or both macros AND change the compile command to get the
+ non-VMS versions linked: (prefix=(all,except=(opendir,... */
+/* #undef HAVE_VMSDIR_H */
+/* #undef _DIRENT_HAVE_D_NAMLEN */
+
+/* On older systems without 7.0 backport of CRTL use non-VMS code for opendir() etc. */
+#if __CRTL_VER < 70000000
+# define HAVE_VMSDIR_H 1
+#endif
+
+#if defined(HAVE_VMSDIR_H) && defined(HAVE_DIRENT_H)
+#undef HAVE_DIRENT_H
+#endif
+
+#define HAVE_STDLIB_H 1
+#define INCLUDEDIR "sys$sysroot:[syslib]"
+#define LIBDIR "sys$sysroot:[syslib]"
+
+/* Don't use RTL functions of OpenVMS */
+#ifdef __DECC
+#include <stdio.h>
+#include <unistd.h>
+#define getopt gnu_getopt
+#define optarg gnu_optarg
+#define optopt gnu_optopt
+#define optind gnu_optind
+#define opterr gnu_opterr
+#define globfree gnu_globfree
+#define glob gnu_glob
+#endif
+
+/* Define if using alloca.c. */
+/* #undef C_ALLOCA */
+/* maybe this should be placed into makeint.h */
+#if defined(__VAX) && defined(__DECC)
+#define alloca(n) __ALLOCA(n)
+#endif
+
+/* Output sync sypport */
+#define NO_OUTPUT_SYNC
+
+/* Define to 1 to write even short single-line actions into a VMS/DCL command
+ file; this also enables exporting make environment variables into the
+ (sub-)process, which executes the action.
+ The usual make rules apply whether a shell variable - here a DCL symbol or
+ VMS logical [see CRTL getenv()] - is added to the make environment and
+ is exported. */
+#define USE_DCL_COM_FILE 1
+
+/* Build host information. */
+#define MAKE_HOST "VMS"
diff --git a/config.h.W32.template b/config.h.W32.template
new file mode 100644
index 0000000..d72e79a
--- /dev/null
+++ b/config.h.W32.template
@@ -0,0 +1,532 @@
+/* config.h.W32 -- hand-massaged config.h file for Windows builds -*-C-*-
+
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Suppress some Visual C++ warnings.
+ Maybe after the code cleanup for ISO C we can remove some/all of these. */
+#if _MSC_VER > 1000
+# pragma warning(disable:4100) /* unreferenced formal parameter */
+# pragma warning(disable:4102) /* unreferenced label */
+# pragma warning(disable:4127) /* conditional expression is constant */
+# pragma warning(disable:4131) /* uses old-style declarator */
+# pragma warning(disable:4702) /* unreachable code */
+# define _CRT_SECURE_NO_WARNINGS /* function or variable may be unsafe */
+# define _CRT_NONSTDC_NO_WARNINGS /* functions w/o a leading underscore */
+#endif
+
+/* Define to 1 if the 'closedir' function returns void instead of 'int'. */
+/* #undef CLOSEDIR_VOID */
+
+/* Define to one of '_getb67', 'GETB67', 'getb67' for Cray-2 and Cray-YMP
+ systems. This function is required for 'alloca.c' support on those systems.
+ */
+/* #undef CRAY_STACKSEG_END */
+
+/* Define to 1 if using 'alloca.c'. */
+/* #undef C_ALLOCA */
+
+/* Define to 1 if using 'getloadavg.c'. */
+#define C_GETLOADAVG 1
+
+/* Define to 1 for DGUX with <sys/dg_sys_info.h>. */
+/* #undef DGUX */
+
+/* Define to 1 if translation of program messages to the user's native
+ language is requested. */
+/* #undef ENABLE_NLS */
+
+/* Use high resolution file timestamps if nonzero. */
+#define FILE_TIMESTAMP_HI_RES 0
+
+/* Define to 1 if the 'getloadavg' function needs to be run setuid or setgid.
+ */
+/* #undef GETLOADAVG_PRIVILEGED */
+
+/* Define to 1 if you have 'alloca', as a function or macro. */
+#define HAVE_ALLOCA 1
+
+/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+ */
+/* #undef HAVE_ALLOCA_H */
+
+/* Define to 1 if you have the 'atexit' function. */
+#define HAVE_ATEXIT 1
+
+/* Use case insensitive file names */
+/* #undef HAVE_CASE_INSENSITIVE_FS */
+
+/* Define to 1 if you have the clock_gettime function. */
+/* #undef HAVE_CLOCK_GETTIME */
+
+/* Embed GNU Guile support. Windows build sets this on the
+ compilation command line. */
+/* #undef HAVE_GUILE */
+
+/* Define if the GNU dcgettext() function is already present or preinstalled.
+ */
+/* #undef HAVE_DCGETTEXT */
+
+/* Define to 1 if you have the declaration of 'bsd_signal', and to 0 if you
+ don't. */
+#define HAVE_DECL_BSD_SIGNAL 0
+
+/* Define to 1 if you have the declaration of 'sys_siglist', and to 0 if you
+ don't. */
+#define HAVE_DECL_SYS_SIGLIST 0
+
+/* Define to 1 if you have the declaration of '_sys_siglist', and to 0 if you
+ don't. */
+#define HAVE_DECL__SYS_SIGLIST 0
+
+/* Define to 1 if you have the declaration of '__sys_siglist', and to 0 if you
+ don't. */
+#define HAVE_DECL___SYS_SIGLIST 0
+
+/* Define to 1 if you have the <dirent.h> header file, and it defines 'DIR'.
+ */
+#define HAVE_DIRENT_H 1
+
+/* Define to 1 if you have the <direct.h> header file, and it defines getcwd()
+ and chdir().
+ */
+#if (defined(_MSC_VER) || defined(__BORLANDC__)) && !defined(__INTERIX)
+# define HAVE_DIRECT_H 1
+#endif
+
+/* Use platform specific coding */
+#define HAVE_DOS_PATHS 1
+
+/* Define to 1 if you have the 'dup2' function. */
+#define HAVE_DUP2 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the 'fdopen' function. */
+#ifdef __MINGW32__
+#define HAVE_FDOPEN 1
+#endif
+
+/* Define to 1 if you have the 'fileno' function. */
+#define HAVE_FILENO 1
+
+/* Define to 1 if you have the 'getcwd' function. */
+#define HAVE_GETCWD 1
+
+/* Define to 1 if you have the 'getgroups' function. */
+/* #undef HAVE_GETGROUPS */
+
+/* Define to 1 if you have the 'gethostbyname' function. */
+/* #undef HAVE_GETHOSTBYNAME */
+
+/* Define to 1 if you have the 'gethostname' function. */
+/* #undef HAVE_GETHOSTNAME */
+
+/* Define to 1 if you have the 'getloadavg' function. */
+/* #undef HAVE_GETLOADAVG */
+
+/* Define to 1 if you have the 'getrlimit' function. */
+/* #undef HAVE_GETRLIMIT */
+
+/* Define if the GNU gettext() function is already present or preinstalled. */
+/* #undef HAVE_GETTEXT */
+
+/* Define to 1 if you have a standard gettimeofday function */
+#ifdef __MINGW32__
+#define HAVE_GETTIMEOFDAY 1
+#endif
+
+/* Define if you have the iconv() function. */
+/* #undef HAVE_ICONV */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#ifdef __MINGW32__
+#define HAVE_INTTYPES_H 1
+#endif
+
+/* Define to 1 if you have the 'dgc' library (-ldgc). */
+/* #undef HAVE_LIBDGC */
+
+/* Define to 1 if you have the 'kstat' library (-lkstat). */
+/* #undef HAVE_LIBKSTAT */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if you have the <locale.h> header file. */
+/*#define HAVE_LOCALE_H 1*/
+
+/* Define to 1 if you have the 'lstat' function. */
+/* #undef HAVE_LSTAT */
+
+/* Define to 1 if you have the <mach/mach.h> header file. */
+/* #undef HAVE_MACH_MACH_H */
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the 'mkstemp' function. */
+/* #undef HAVE_MKSTEMP */
+
+/* Define to 1 if you have the 'mktemp' function. */
+#define HAVE_MKTEMP 1
+
+/* Define to 1 if you have the <ndir.h> header file, and it defines 'DIR'. */
+/* #undef HAVE_NDIR_H */
+
+/* Define to 1 if you have the <nlist.h> header file. */
+/* #undef HAVE_NLIST_H */
+
+/* Define to 1 if you have the 'pipe' function. */
+/* #undef HAVE_PIPE */
+
+/* Define to 1 if you have the 'pstat_getdynamic' function. */
+/* #undef HAVE_PSTAT_GETDYNAMIC */
+
+/* Define to 1 if you have the 'readlink' function. */
+/* #undef HAVE_READLINK */
+
+/* Define to 1 if you have the 'realpath' function. */
+/* #undef HAVE_REALPATH */
+
+/* Define to 1 if <signal.h> defines the SA_RESTART constant. */
+/* #undef HAVE_SA_RESTART */
+
+/* Define to 1 if you have the 'setegid' function. */
+/* #undef HAVE_SETEGID */
+
+/* Define to 1 if you have the 'seteuid' function. */
+/* #undef HAVE_SETEUID */
+
+/* Define to 1 if you have the 'setlinebuf' function. */
+/* #undef HAVE_SETLINEBUF */
+
+/* Define to 1 if you have the 'setlocale' function. */
+/*#define HAVE_SETLOCALE 1*/
+
+/* Define to 1 if you have the 'setregid' function. */
+/* #undef HAVE_SETREGID */
+
+/* Define to 1 if you have the 'setreuid' function. */
+/* #undef HAVE_SETREUID */
+
+/* Define to 1 if you have the 'setrlimit' function. */
+/* #undef HAVE_SETRLIMIT */
+
+/* Define to 1 if you have the 'setvbuf' function. */
+#define HAVE_SETVBUF 1
+
+/* Define to 1 if you have the 'sigaction' function. */
+/* #undef HAVE_SIGACTION */
+
+/* Define to 1 if you have the 'sigsetmask' function. */
+/* #undef HAVE_SIGSETMASK */
+
+/* Define to 1 if you have the 'socket' function. */
+/* #undef HAVE_SOCKET */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#ifdef __MINGW32__
+#define HAVE_STDINT_H 1
+#endif
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the 'strcasecmp' function. */
+#ifdef __MINGW32__
+#define HAVE_STRCASECMP 1
+#endif
+
+/* Define to 1 if you have the 'strcmpi' function. */
+#define HAVE_STRCMPI 1
+
+/* Define to 1 if you have the 'strcoll' function and it is properly defined.
+ */
+#define HAVE_STRCOLL 1
+
+/* Define to 1 if you have the 'strdup' function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the 'strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the 'stricmp' function. */
+#define HAVE_STRICMP 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+/* #define HAVE_STRINGS_H 1 */
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the 'strncasecmp' function. */
+#ifdef __MINGW32__
+#define HAVE_STRNCASECMP 1
+#endif
+
+/* Define to 1 if you have the 'strncmpi' function. */
+/* #undef HAVE_STRNCMPI */
+
+/* Define to 1 if you have the 'strndup' function. */
+/* #undef HAVE_STRNDUP */
+
+/* Define to 1 if you have the 'strnicmp' function. */
+#ifdef __MINGW32__
+#define HAVE_STRNICMP 1
+#endif
+
+/* Define to 1 if you have the 'strsignal' function. */
+/* #undef HAVE_STRSIGNAL */
+
+/* Define to 1 if you have the `isatty' function. */
+#define HAVE_ISATTY 1
+
+/* Define to 1 if you have the `ttyname' function. */
+#define HAVE_TTYNAME 1
+char *ttyname (int);
+
+/* Define to 1 if 'n_un.n_name' is a member of 'struct nlist'. */
+/* #undef HAVE_STRUCT_NLIST_N_UN_N_NAME */
+
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines 'DIR'.
+ */
+/* #undef HAVE_SYS_DIR_H */
+
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines 'DIR'.
+ */
+/* #undef HAVE_SYS_NDIR_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#ifdef __MINGW32__
+#define HAVE_SYS_PARAM_H 1
+#endif
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+/* #undef HAVE_SYS_RESOURCE_H */
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/timeb.h> header file. */
+#define HAVE_SYS_TIMEB_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#ifdef __MINGW32__
+#define HAVE_SYS_TIME_H 1
+#endif
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/wait.h> header file. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to 1 if you have the \'union wait' type in <sys/wait.h>. */
+/* #undef HAVE_UNION_WAIT */
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#ifdef __MINGW32__
+#define HAVE_UNISTD_H 1
+#endif
+
+/* Define to 1 if you have the 'wait3' function. */
+/* #undef HAVE_WAIT3 */
+
+/* Define to 1 if you have the 'waitpid' function. */
+/* #undef HAVE_WAITPID */
+
+/* Build host information. */
+#define MAKE_HOST "Windows32"
+
+/* Define to 1 to enable job server support in GNU make. */
+#define MAKE_JOBSERVER 1
+
+/* Define to 1 to enable 'load' support in GNU make. */
+#define MAKE_LOAD 1
+
+/* Define to 1 to enable symbolic link timestamp checking. */
+/* #undef MAKE_SYMLINKS */
+
+/* Define to 1 if your 'struct nlist' has an 'n_un' member. Obsolete, depend
+ on 'HAVE_STRUCT_NLIST_N_UN_N_NAME */
+/* #undef NLIST_NAME_UNION */
+
+/* Define to 1 if struct nlist.n_name is a pointer rather than an array. */
+/* #undef NLIST_STRUCT */
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* Name of this package (needed by automake) */
+#define PACKAGE "%PACKAGE%"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "bug-make@gnu.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "GNU make"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL "http://www.gnu.org/software/make/"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "%VERSION%"
+
+/* Define to the character that separates directories in PATH. */
+#define PATH_SEPARATOR_CHAR ';'
+
+/* Define as the return type of signal handlers ('int' or 'void'). */
+#define RETSIGTYPE void
+
+/* Define to the name of the SCCS 'get' command. */
+#define SCCS_GET "echo no sccs get"
+
+/* Define this if the SCCS 'get' command understands the '-G<file>' option. */
+/* #undef SCCS_GET_MINUS_G */
+
+/* Define to 1 if the 'setvbuf' function takes the buffering type as its
+ second argument and the buffer pointer as the third, as on System V before
+ release 3. */
+/* #undef SETVBUF_REVERSED */
+
+/* If using the C implementation of alloca, define if you know the
+ direction of stack growth for your system; otherwise it will be
+ automatically deduced at run time.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown */
+/* #undef STACK_DIRECTION */
+
+/* Define to 1 if the 'S_IS*' macros in <sys/stat.h> do not work properly. */
+/* #undef STAT_MACROS_BROKEN */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define if struct stat contains a nanoseconds field */
+/* #undef ST_MTIM_NSEC */
+
+/* Define to 1 on System V Release 4. */
+/* #undef SVR4 */
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#ifdef __MINGW32__
+#define TIME_WITH_SYS_TIME 1
+#endif
+
+/* Define to 1 for Encore UMAX. */
+/* #undef UMAX */
+
+/* Define to 1 for Encore UMAX 4.3 that has <inq_status/cpustats.h> instead of
+ <sys/cpustats.h>. */
+/* #undef UMAX4_3 */
+
+/* Version number of package */
+#define VERSION "%VERSION%"
+
+/* Define if using the dmalloc debugging malloc package */
+/* #undef WITH_DMALLOC */
+
+/* Define to 1 if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+/* # undef _ALL_SOURCE */
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to 1 if on MINIX. */
+/* #undef _MINIX */
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+ this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define to 1 if you need to in order for 'stat' and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Define to empty if 'const' does not conform to ANSI C. */
+/* #undef const */
+
+#include <sys/types.h>
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#define gid_t int
+
+/* Define to 'int' if <sys/types.h> does not define. */
+/* GCC 4.x reportedly defines pid_t. */
+#ifndef _PID_T_
+#ifdef _WIN64
+#define pid_t __int64
+#else
+#define pid_t int
+#endif
+#endif
+
+/* Define to 'int' if <sys/types.h> doesn't define. */
+#define uid_t int
+
+/* Define uintmax_t if not defined in <stdint.h> or <inttypes.h>. */
+#if !HAVE_STDINT_H && !HAVE_INTTYPES_H
+#define uintmax_t unsigned long
+#endif
+
+/* Define if you have <sys/wait.h> that is POSIX.1 compatible. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to the installation directory for locales. */
+#define LOCALEDIR ""
+
+/*
+ * Refer to README.W32 for info on the following settings
+ */
+
+
+/*
+ * If you have a shell that does not grok 'sh -c quoted-command-line'
+ * correctly, you need this setting. Please see below for specific
+ * shell support.
+ */
+/*#define BATCH_MODE_ONLY_SHELL 1 */
+
+/*
+ * Define if you have the Cygnus "Cygwin" GNU Windows32 tool set.
+ * Do NOT define BATCH_MODE_ONLY_SHELL if you define HAVE_CYGWIN_SHELL
+ */
+/*#define HAVE_CYGWIN_SHELL 1 */
+
+/*
+ * Define if you have the MKS tool set or shell. Do NOT define
+ * BATCH_MODE_ONLY_SHELL if you define HAVE_MKS_SHELL
+ */
+/*#define HAVE_MKS_SHELL 1 */
+
+/*
+ * Enforce the mutual exclusivity restriction.
+ */
+#ifdef HAVE_MKS_SHELL
+#undef BATCH_MODE_ONLY_SHELL
+#endif
+
+#ifdef HAVE_CYGWIN_SHELL
+#undef BATCH_MODE_ONLY_SHELL
+#endif
diff --git a/config/.gitignore b/config/.gitignore
new file mode 100644
index 0000000..d11a488
--- /dev/null
+++ b/config/.gitignore
@@ -0,0 +1,12 @@
+ar-lib
+compile
+config.guess
+config.rpath
+config.sub
+depcomp
+install-sh
+mdate-sh
+missing
+texinfo.tex
+*.m4
+!dospaths.m4
diff --git a/config/ChangeLog.1 b/config/ChangeLog.1
new file mode 100644
index 0000000..8549501
--- /dev/null
+++ b/config/ChangeLog.1
@@ -0,0 +1,49 @@
+2012-01-15 Paul Smith <psmith@gnu.org>
+
+ * dospaths.m4: Use AC_LANG_PROGRAM to encapsulate the test code.
+ Fixes Savannah bug #35256. Patch from Sebastian Pipping.
+
+2006-03-09 Paul Smith <psmith@gnu.org>
+
+ * dospaths.m4: Add MSYS to the list of targets allowing DOS-style
+ pathnames. Reported by David Ergo <david.ergo@alterface.com>.
+
+2005-07-01 Paul D. Smith <psmith@gnu.org>
+
+ * Makefile.am (EXTRA_DIST): Added more M4 files to EXTRA_DIST, so
+ users can re-run aclocal.
+
+2003-04-30 Paul D. Smith <psmith@gnu.org>
+
+ * dospaths.m4: New macro to test for DOS-style pathnames, based on
+ coreutils 5.0 "dos.m4" by Jim Meyering.
+
+2002-04-21 gettextize <bug-gnu-gettext@gnu.org>
+
+ * codeset.m4: New file, from gettext-0.11.1.
+ * gettext.m4: New file, from gettext-0.11.1.
+ * glibc21.m4: New file, from gettext-0.11.1.
+ * iconv.m4: New file, from gettext-0.11.1.
+ * isc-posix.m4: New file, from gettext-0.11.1.
+ * lcmessage.m4: New file, from gettext-0.11.1.
+ * lib-ld.m4: New file, from gettext-0.11.1.
+ * lib-link.m4: New file, from gettext-0.11.1.
+ * lib-prefix.m4: New file, from gettext-0.11.1.
+ * progtest.m4: New file, from gettext-0.11.1.
+ * Makefile.am: New file.
+
+
+Copyright (C) 2002-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/config/Makefile.am b/config/Makefile.am
new file mode 100644
index 0000000..7bce036
--- /dev/null
+++ b/config/Makefile.am
@@ -0,0 +1,18 @@
+# -*-Makefile-*-, or close enough
+# Copyright (C) 2002-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Autoconf / automake know how to handle this directory.
diff --git a/config/dospaths.m4 b/config/dospaths.m4
new file mode 100644
index 0000000..9aa9814
--- /dev/null
+++ b/config/dospaths.m4
@@ -0,0 +1,33 @@
+# Test if the system uses DOS-style pathnames (drive specs and backslashes)
+# By Paul Smith <psmith@gnu.org>. Based on dos.m4 by Jim Meyering.
+#
+# Copyright (C) 1993-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+AC_DEFUN([pds_AC_DOS_PATHS], [
+ AC_CACHE_CHECK([whether system uses MSDOS-style paths], [ac_cv_dos_paths], [
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __EMX__ && !defined __MSYS__ && !defined __CYGWIN__
+neither MSDOS nor Windows nor OS2
+#endif
+]])],
+ [ac_cv_dos_paths=yes],
+ [ac_cv_dos_paths=no])])
+
+ AS_IF([test x"$ac_cv_dos_paths" = xyes],
+ [ AC_DEFINE_UNQUOTED([HAVE_DOS_PATHS], 1,
+ [Define if the system uses DOS-style pathnames.])])
+])
diff --git a/configh.dos.template b/configh.dos.template
new file mode 100644
index 0000000..c43e644
--- /dev/null
+++ b/configh.dos.template
@@ -0,0 +1,113 @@
+/* configh.dos -- hand-massaged config.h file for MS-DOS builds -*-C-*-
+
+Copyright (C) 1994-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Include this header to make __DJGPP_MINOR__ available because DJGPP ports
+ of GCC 4.3.0 and later no longer do it automatically. */
+#include <sys/version.h>
+
+/* Many things are defined already by a system header. */
+#include <sys/config.h>
+
+#if __DJGPP__ > 2 || __DJGPP_MINOR__ > 1
+
+/* Define to 1 if 'sys_siglist' is declared by <signal.h> or <unistd.h>. */
+# define SYS_SIGLIST_DECLARED 1
+
+/* Define to 1 if the C library defines the variable '_sys_siglist'. */
+# define HAVE_DECL_SYS_SIGLIST 1
+
+#else
+
+/* Define NSIG. */
+# define NSIG SIGMAX
+
+#endif
+
+/* Use high resolution file timestamps if nonzero. */
+#define FILE_TIMESTAMP_HI_RES 0
+
+/* Define to 1 if you have 'alloca', as a function or macro. */
+#define HAVE_ALLOCA 1
+
+/* Define to 1 if you have the fdopen function. */
+#define HAVE_FDOPEN 1
+
+/* Define to 1 if you have the 'getgroups' function. */
+#define HAVE_GETGROUPS 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the mkstemp function. */
+#define HAVE_MKSTEMP 1
+
+/* Define to 1 if you have the 'mktemp' function. */
+#define HAVE_MKTEMP 1
+
+/* Define to 1 if you have the 'setlinebuf' function. */
+#define HAVE_SETLINEBUF 1
+
+/* Define to 1 if you have the 'setvbuf' function. */
+#define HAVE_SETVBUF 1
+
+#define SCCS_GET "get"
+
+/* Define to 'unsigned long' or 'unsigned long long'
+ if <inttypes.h> doesn't define. */
+#define uintmax_t unsigned long long
+
+/* Define the type of the first arg to select(). */
+#define fd_set_size_t int
+
+/* Define to 1 if you have the select function. */
+#define HAVE_SELECT 1
+
+/* Define to 1 if you have the stricmp function. */
+#define HAVE_STRICMP 1
+
+/* Define to 1 if you have the 'strncasecmp' function. */
+#define HAVE_STRNCASECMP 1
+
+/* Name of the package */
+#define PACKAGE "%PACKAGE%"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "bug-%PACKAGE%@gnu.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "GNU %PACKAGE%"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "GNU %PACKAGE% %VERSION%"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "%PACKAGE%"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "%VERSION%"
+
+/* Output sync sypport */
+#define NO_OUTPUT_SYNC
+
+/* Version number of package */
+#define VERSION "%VERSION%"
+
+/* Build host information. */
+#define MAKE_HOST "i386-pc-msdosdjgpp"
+
+/* Grok DOS paths (drive specs and backslash path element separators) */
+#define HAVE_DOS_PATHS
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..64ec870
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,523 @@
+# Process this file with autoconf to produce a configure script.
+#
+# Copyright (C) 1993-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+AC_INIT([GNU make],[4.2.1],[bug-make@gnu.org])
+
+AC_PREREQ([2.69])
+
+# Autoconf setup
+AC_CONFIG_AUX_DIR([config])
+AC_CONFIG_SRCDIR([vpath.c])
+AC_CONFIG_HEADERS([config.h])
+
+# Automake setup
+# We have to enable "foreign" because ChangeLog is auto-generated
+# We cannot enable -Werror because gettext 0.18.1 has invalid content
+# When we update gettext to 0.18.3 or better we can add it again.
+AM_INIT_AUTOMAKE([1.15 foreign -Werror -Wall])
+
+# Checks for programs.
+AC_USE_SYSTEM_EXTENSIONS
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_PROG_RANLIB
+AC_PROG_CPP
+AC_CHECK_PROG([AR], [ar], [ar], [ar])
+# Perl is needed for the test suite (only)
+AC_CHECK_PROG([PERL], [perl], [perl], [perl])
+
+# Needed for w32/Makefile.am
+AM_PROG_AR
+
+# Specialized system macros
+AC_CANONICAL_HOST
+AC_AIX
+AC_ISC_POSIX
+AC_MINIX
+
+# Enable gettext, in "external" mode.
+AM_GNU_GETTEXT_VERSION([0.19.4])
+AM_GNU_GETTEXT([external])
+
+# This test must come as early as possible after the compiler configuration
+# tests, because the choice of the file model can (in principle) affect
+# whether functions and headers are available, whether they work, etc.
+AC_SYS_LARGEFILE
+
+# Checks for libraries.
+AC_SEARCH_LIBS([getpwnam], [sun])
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_HEADER_DIRENT
+AC_HEADER_STAT
+AC_HEADER_TIME
+AC_CHECK_HEADERS([stdlib.h locale.h unistd.h limits.h fcntl.h string.h \
+ memory.h sys/param.h sys/resource.h sys/time.h sys/timeb.h \
+ sys/select.h])
+
+AM_PROG_CC_C_O
+AC_C_CONST
+AC_TYPE_SIGNAL
+AC_TYPE_UID_T
+AC_TYPE_PID_T
+AC_TYPE_OFF_T
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINTMAX_T
+
+# Find out whether our struct stat returns nanosecond resolution timestamps.
+
+AC_STRUCT_ST_MTIM_NSEC
+AC_CACHE_CHECK([whether to use high resolution file timestamps],
+ [make_cv_file_timestamp_hi_res],
+[ make_cv_file_timestamp_hi_res=no
+ AS_IF([test "$ac_cv_struct_st_mtim_nsec" != no],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif]],
+ [[char a[0x7fffffff < (uintmax_t)-1 >> 30 ? 1 : -1];]])],
+ [make_cv_file_timestamp_hi_res=yes])
+ ])])
+AS_IF([test "$make_cv_file_timestamp_hi_res" = yes], [val=1], [val=0])
+AC_DEFINE_UNQUOTED([FILE_TIMESTAMP_HI_RES], [$val],
+ [Use high resolution file timestamps if nonzero.])
+
+AS_IF([test "$make_cv_file_timestamp_hi_res" = yes],
+[ # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
+ # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
+ AC_SEARCH_LIBS([clock_gettime], [rt posix4])
+ AS_IF([test "$ac_cv_search_clock_gettime" != no],
+ [ AC_DEFINE([HAVE_CLOCK_GETTIME], [1],
+ [Define to 1 if you have the clock_gettime function.])
+ ])
+])
+
+# Check for DOS-style pathnames.
+pds_AC_DOS_PATHS
+
+# See if we have a standard version of gettimeofday(). Since actual
+# implementations can differ, just make sure we have the most common
+# one.
+AC_CACHE_CHECK([for standard gettimeofday], [ac_cv_func_gettimeofday],
+ [ac_cv_func_gettimeofday=no
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <sys/time.h>
+ int main ()
+ {
+ struct timeval t; t.tv_sec = -1; t.tv_usec = -1;
+ exit (gettimeofday (&t, 0) != 0
+ || t.tv_sec < 0 || t.tv_usec < 0);
+ }]])],
+ [ac_cv_func_gettimeofday=yes],
+ [ac_cv_func_gettimeofday=no],
+ [ac_cv_func_gettimeofday="no (cross-compiling)"])])
+AS_IF([test "$ac_cv_func_gettimeofday" = yes],
+[ AC_DEFINE([HAVE_GETTIMEOFDAY], [1],
+ [Define to 1 if you have a standard gettimeofday function])
+])
+
+AC_CHECK_FUNCS([strdup strndup mkstemp mktemp fdopen fileno \
+ dup dup2 getcwd realpath sigsetmask sigaction \
+ getgroups seteuid setegid setlinebuf setreuid setregid \
+ getrlimit setrlimit setvbuf pipe strerror strsignal \
+ lstat readlink atexit isatty ttyname pselect])
+
+# We need to check declarations, not just existence, because on Tru64 this
+# function is not declared without special flags, which themselves cause
+# other problems. We'll just use our own.
+AC_CHECK_DECLS([bsd_signal], [], [], [[#define _GNU_SOURCE 1
+#include <signal.h>]])
+
+AC_FUNC_FORK
+
+AC_FUNC_SETVBUF_REVERSED
+
+# Rumor has it that strcasecmp lives in -lresolv on some odd systems.
+# It doesn't hurt much to use our own if we can't find it so I don't
+# make the effort here.
+AC_CHECK_FUNCS([strcasecmp strncasecmp strcmpi strncmpi stricmp strnicmp])
+
+# strcoll() is used by the GNU glob library
+AC_FUNC_STRCOLL
+
+AC_FUNC_ALLOCA
+AC_FUNC_CLOSEDIR_VOID
+
+# See if the user wants to add (or not) GNU Guile support
+PKG_PROG_PKG_CONFIG
+AC_ARG_WITH([guile], [AS_HELP_STRING([--with-guile],
+ [Support GNU Guile for embedded scripting])])
+
+# For some strange reason, at least on Ubuntu, each version of Guile
+# comes with it's own PC file so we have to specify them as individual
+# packages. Ugh.
+AS_IF([test "x$with_guile" != xno],
+[ PKG_CHECK_MODULES([GUILE], [guile-2.0], [have_guile=yes],
+ [PKG_CHECK_MODULES([GUILE], [guile-1.8], [have_guile=yes],
+ [have_guile=no])])
+])
+
+AS_IF([test "$have_guile" = yes],
+ [AC_DEFINE([HAVE_GUILE], [1], [Embed GNU Guile support])])
+
+AM_CONDITIONAL([HAVE_GUILE], [test "$have_guile" = yes])
+
+AC_FUNC_GETLOADAVG
+
+# AC_FUNC_GETLOADAVG is documented to set the NLIST_STRUCT value, but it
+# doesn't. So, we will.
+
+AS_IF([test "$ac_cv_header_nlist_h" = yes],
+[ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
+ [[struct nlist nl;
+ nl.n_name = "string";
+ return 0;]])],
+ [make_cv_nlist_struct=yes],
+ [make_cv_nlist_struct=no])
+ AS_IF([test "$make_cv_nlist_struct" = yes],
+ [ AC_DEFINE([NLIST_STRUCT], [1],
+ [Define to 1 if struct nlist.n_name is a pointer rather than an array.])
+ ])
+])
+
+AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], , ,
+ [AC_INCLUDES_DEFAULT
+#include <signal.h>
+/* NetBSD declares sys_siglist in unistd.h. */
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+])
+
+
+# Check out the wait reality.
+AC_CHECK_HEADERS([sys/wait.h],[],[],[[#include <sys/types.h>]])
+AC_CHECK_FUNCS([waitpid wait3])
+AC_CACHE_CHECK([for union wait], [make_cv_union_wait],
+[ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <sys/wait.h>]],
+ [[union wait status; int pid; pid = wait (&status);
+#ifdef WEXITSTATUS
+/* Some POSIXoid systems have both the new-style macros and the old
+ union wait type, and they do not work together. If union wait
+ conflicts with WEXITSTATUS et al, we don't want to use it at all. */
+ if (WEXITSTATUS (status) != 0) pid = -1;
+#ifdef WTERMSIG
+ /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
+ -- blow chunks here --
+#endif
+#endif
+#ifdef HAVE_WAITPID
+ /* Make sure union wait works with waitpid. */
+ pid = waitpid (-1, &status, 0);
+#endif
+ ]])],
+ [make_cv_union_wait=yes],
+ [make_cv_union_wait=no])
+])
+AS_IF([test "$make_cv_union_wait" = yes],
+[ AC_DEFINE([HAVE_UNION_WAIT], [1],
+ [Define to 1 if you have the 'union wait' type in <sys/wait.h>.])
+])
+
+
+# If we're building on Windows/DOS/OS/2, add some support for DOS drive specs.
+AS_IF([test "$PATH_SEPARATOR" = ';'],
+[ AC_DEFINE([HAVE_DOS_PATHS], [1],
+ [Define to 1 if your system requires backslashes or drive specs in pathnames.])
+])
+
+# See if the user wants to use pmake's "customs" distributed build capability
+AC_SUBST([REMOTE]) REMOTE=stub
+use_customs=false
+AC_ARG_WITH([customs],
+[AC_HELP_STRING([--with-customs=DIR],
+ [enable remote jobs via Customs--see README.customs])],
+[ AS_CASE([$withval], [n|no], [:],
+ [make_cppflags="$CPPFLAGS"
+ AS_CASE([$withval],
+ [y|ye|yes], [:],
+ [CPPFLAGS="$CPPFLAGS -I$with_customs/include/customs"
+ make_ldflags="$LDFLAGS -L$with_customs/lib"])
+ CF_NETLIBS
+ AC_CHECK_HEADER([customs.h],
+ [use_customs=true
+ REMOTE=cstms
+ LIBS="$LIBS -lcustoms" LDFLAGS="$make_ldflags"],
+ [with_customs=no
+ CPPFLAGS="$make_cppflags" make_badcust=yes])
+ ])
+])
+
+# Tell automake about this, so it can include the right .c files.
+AM_CONDITIONAL([USE_CUSTOMS], [test "$use_customs" = true])
+
+# See if the user asked to handle case insensitive file systems.
+AH_TEMPLATE([HAVE_CASE_INSENSITIVE_FS], [Use case insensitive file names])
+AC_ARG_ENABLE([case-insensitive-file-system],
+ AC_HELP_STRING([--enable-case-insensitive-file-system],
+ [assume file systems are case insensitive]),
+ [AS_IF([test "$enableval" = yes], [AC_DEFINE([HAVE_CASE_INSENSITIVE_FS])])])
+
+# See if we can handle the job server feature, and if the user wants it.
+AC_ARG_ENABLE([job-server],
+ AC_HELP_STRING([--disable-job-server],
+ [disallow recursive make communication during -jN]),
+ [make_cv_job_server="$enableval" user_job_server="$enableval"],
+ [make_cv_job_server="yes"])
+
+AS_IF([test "$ac_cv_func_waitpid" = no && test "$ac_cv_func_wait3" = no],
+ [has_wait_nohang=no],
+ [has_wait_nohang=yes])
+
+AC_CACHE_CHECK([for SA_RESTART], [make_cv_sa_restart], [
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
+ [[return SA_RESTART;]])],
+ [make_cv_sa_restart=yes],
+ [make_cv_sa_restart=no])])
+
+AS_IF([test "$make_cv_sa_restart" != no],
+[ AC_DEFINE([HAVE_SA_RESTART], [1],
+ [Define to 1 if <signal.h> defines the SA_RESTART constant.])
+])
+
+# Only allow jobserver on systems that support it
+AS_CASE([/$ac_cv_func_pipe/$ac_cv_func_sigaction/$make_cv_sa_restart/$has_wait_nohang/],
+ [*/no/*], [make_cv_job_server=no])
+
+# Also supported on OS2 and MinGW
+AS_CASE([$host_os], [os2*|mingw*], [make_cv_job_server=yes])
+
+# If we support it and the user didn't disable it, build with jobserver
+AS_CASE([/$make_cv_job_server/$user_job_server/],
+ [*/no/*], [: no jobserver],
+ [AC_DEFINE(MAKE_JOBSERVER, 1,
+ [Define to 1 to enable job server support in GNU make.])
+ ])
+
+# If dl*() functions are supported we can enable the load operation
+AC_CHECK_DECLS([dlopen, dlsym, dlerror], [], [],
+ [[#include <dlfcn.h>]])
+
+AC_ARG_ENABLE([load],
+ AC_HELP_STRING([--disable-load],
+ [disable support for the 'load' operation]),
+ [make_cv_load="$enableval" user_load="$enableval"],
+ [make_cv_load="yes"])
+
+AS_CASE([/$ac_cv_have_decl_dlopen/$ac_cv_have_decl_dlsym/$ac_cv_have_decl_dlerror/],
+ [*/no/*], [make_cv_load=no])
+
+# We might need -ldl
+AS_IF([test "$make_cv_load" = yes], [
+ AC_SEARCH_LIBS([dlopen], [dl], [], [make_cv_load=])
+ ])
+
+AS_CASE([/$make_cv_load/$user_load/],
+ [*/no/*], [make_cv_load=no],
+ [AC_DEFINE(MAKE_LOAD, 1,
+ [Define to 1 to enable 'load' support in GNU make.])
+ ])
+
+# If we want load support, we might need to link with export-dynamic.
+# See if we can figure it out. Unfortunately this is very difficult.
+# For example passing -rdynamic to the SunPRO linker gives a warning
+# but succeeds and creates a shared object, not an executable!
+AS_IF([test "$make_cv_load" = yes], [
+ AC_MSG_CHECKING([If the linker accepts -Wl,--export-dynamic])
+ old_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])],
+ [AC_MSG_RESULT([yes])
+ AC_SUBST([AM_LDFLAGS], [-Wl,--export-dynamic])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_CHECKING([If the linker accepts -rdynamic])
+ LDFLAGS="$old_LDFLAGS -rdynamic"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])],
+ [AC_MSG_RESULT([yes])
+ AC_SUBST([AM_LDFLAGS], [-rdynamic])],
+ [AC_MSG_RESULT([no])])
+ ])
+ LDFLAGS="$old_LDFLAGS"
+])
+
+# if we have both lstat() and readlink() then we can support symlink
+# timechecks.
+AS_IF([test "$ac_cv_func_lstat" = yes && test "$ac_cv_func_readlink" = yes],
+ [ AC_DEFINE([MAKE_SYMLINKS], [1],
+ [Define to 1 to enable symbolic link timestamp checking.])
+])
+
+# Find the SCCS commands, so we can include them in our default rules.
+
+AC_CACHE_CHECK([for location of SCCS get command], [make_cv_path_sccs_get], [
+ AS_IF([test -f /usr/sccs/get],
+ [make_cv_path_sccs_get=/usr/sccs/get],
+ [make_cv_path_sccs_get=get])
+])
+AC_DEFINE_UNQUOTED([SCCS_GET], ["$make_cv_path_sccs_get"],
+ [Define to the name of the SCCS 'get' command.])
+
+ac_clean_files="$ac_clean_files s.conftest conftoast" # Remove these later.
+AS_IF([(/usr/sccs/admin -n s.conftest || admin -n s.conftest) >/dev/null 2>&1 &&
+ test -f s.conftest],
+[ # We successfully created an SCCS file.
+ AC_CACHE_CHECK([if SCCS get command understands -G], [make_cv_sys_get_minus_G],
+ [AS_IF([$make_cv_path_sccs_get -Gconftoast s.conftest >/dev/null 2>&1 &&
+ test -f conftoast],
+ [make_cv_sys_get_minus_G=yes],
+ [make_cv_sys_get_minus_G=no])
+ ])
+ AS_IF([test "$make_cv_sys_get_minus_G" = yes],
+ [AC_DEFINE([SCCS_GET_MINUS_G], [1],
+ [Define to 1 if the SCCS 'get' command understands the '-G<file>' option.])
+ ])
+])
+rm -f s.conftest conftoast
+
+# Check the system to see if it provides GNU glob. If not, use our
+# local version.
+AC_CACHE_CHECK([if system libc has GNU glob], [make_cv_sys_gnu_glob],
+[ AC_EGREP_CPP([gnu glob],[
+#include <features.h>
+#include <glob.h>
+#include <fnmatch.h>
+
+#define GLOB_INTERFACE_VERSION 1
+#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
+# include <gnu-versions.h>
+# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
+ gnu glob
+# endif
+#endif],
+ [make_cv_sys_gnu_glob=yes],
+ [make_cv_sys_gnu_glob=no])])
+AS_IF([test "$make_cv_sys_gnu_glob" = no],
+[ GLOBINC='-I$(srcdir)/glob'
+ GLOBLIB=glob/libglob.a
+])
+AC_SUBST([GLOBINC])
+AC_SUBST([GLOBLIB])
+
+# Tell automake about this, so it can build the right .c files.
+AM_CONDITIONAL([USE_LOCAL_GLOB], [test "$make_cv_sys_gnu_glob" = no])
+
+# Let the makefile know what our build host is
+
+AC_DEFINE_UNQUOTED([MAKE_HOST],["$host"],[Build host information.])
+MAKE_HOST="$host"
+AC_SUBST([MAKE_HOST])
+
+w32_target_env=no
+AM_CONDITIONAL([WINDOWSENV], [false])
+
+AS_CASE([$host],
+ [*-*-mingw32],
+ [AM_CONDITIONAL([WINDOWSENV], [true])
+ w32_target_env=yes
+ AC_DEFINE([WINDOWS32], [1], [Use platform specific coding])
+ AC_DEFINE([HAVE_DOS_PATHS], [1], [Use platform specific coding])
+ ])
+
+AC_DEFINE_UNQUOTED([PATH_SEPARATOR_CHAR],['$PATH_SEPARATOR'],
+ [Define to the character that separates directories in PATH.])
+
+# Include the Maintainer's Makefile section, if it's here.
+
+MAINT_MAKEFILE=/dev/null
+AS_IF([test -r "$srcdir/maintMakefile"],
+[ MAINT_MAKEFILE="$srcdir/maintMakefile"
+])
+AC_SUBST_FILE([MAINT_MAKEFILE])
+
+# Allow building with dmalloc
+AM_WITH_DMALLOC
+
+# Forcibly disable SET_MAKE. If it's set it breaks things like the test
+# scripts, etc.
+SET_MAKE=
+
+# Sanity check and inform the user of what we found
+
+AS_IF([test "x$make_badcust" = xyes], [
+echo
+echo "WARNING: --with-customs specified but no customs.h could be found;"
+echo " disabling Customs support."
+echo
+])
+
+AS_CASE([$with_customs],
+[""|n|no|y|ye|yes], [:],
+[AS_IF([test -f "$with_customs/lib/libcustoms.a"], [:],
+[ echo
+ echo "WARNING: '$with_customs/lib' does not appear to contain the"
+ echo " Customs library. You must build and install Customs"
+ echo " before compiling GNU make."
+ echo
+])])
+
+AS_IF([test "x$has_wait_nohang" = xno],
+[ echo
+ echo "WARNING: Your system has neither waitpid() nor wait3()."
+ echo " Without one of these, signal handling is unreliable."
+ echo " You should be aware that running GNU make with -j"
+ echo " could result in erratic behavior."
+ echo
+])
+
+AS_IF([test "x$make_cv_job_server" = xno && test "x$user_job_server" = xyes],
+[ echo
+ echo "WARNING: Make job server requires a POSIX-ish system that"
+ echo " supports the pipe(), sigaction(), and either"
+ echo " waitpid() or wait3() functions. Your system doesn't"
+ echo " appear to provide one or more of those."
+ echo " Disabling job server support."
+ echo
+])
+
+AS_IF([test "x$make_cv_load" = xno && test "x$user_load" = xyes],
+[ echo
+ echo "WARNING: 'load' support requires a POSIX-ish system that"
+ echo " supports the dlopen(), dlsym(), and dlerror() functions."
+ echo " Your system doesn't appear to provide one or more of these."
+ echo " Disabling 'load' support."
+ echo
+])
+
+# Specify what files are to be created.
+AC_CONFIG_FILES([Makefile glob/Makefile po/Makefile.in config/Makefile \
+ doc/Makefile w32/Makefile tests/config-flags.pm])
+
+# OK, do it!
+
+AC_OUTPUT
+
+# We only generate the build.sh if we have a build.sh.in; we won't have
+# one before we've created a distribution.
+AS_IF([test -f "$srcdir/build.sh.in"],
+[ ./config.status --file build.sh
+ chmod +x build.sh
+])
+
+dnl Local Variables:
+dnl comment-start: "dnl "
+dnl comment-end: ""
+dnl comment-start-skip: "\\bdnl\\b\\s *"
+dnl compile-command: "make configure config.h.in"
+dnl End:
diff --git a/configure.bat b/configure.bat
new file mode 100644
index 0000000..3c41f38
--- /dev/null
+++ b/configure.bat
@@ -0,0 +1,60 @@
+@echo off
+rem Copyright (C) 1994-2016 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
+
+echo Configuring MAKE for DJGPP
+
+rem The SmallEnv trick protects against too small environment block,
+rem in which case the values will be truncated and the whole thing
+rem goes awry. COMMAND.COM will say "Out of environment space", but
+rem many people don't care, so we force them to care by refusing to go.
+
+rem Where is the srcdir?
+set XSRC=.
+if not "%XSRC%"=="." goto SmallEnv
+if "%1%"=="" goto SrcDone
+set XSRC=%1
+if not "%XSRC%"=="%1" goto SmallEnv
+
+:SrcDone
+
+update %XSRC%/configh.dos ./config.h
+
+rem Do they have Make?
+redir -o junk.$$$ -eo make -n -f NUL
+rem REDIR will return 1 if it cannot run Make.
+rem If it can run Make, it will usually return 2,
+rem but 0 is also OK with us.
+if errorlevel 2 goto MakeOk
+if not errorlevel 1 goto MakeOk
+if exist junk.$$$ del junk.$$$
+echo No Make program found--use DOSBUILD.BAT to build Make.
+goto End
+
+rem They do have Make. Generate the Makefile.
+
+:MakeOk
+del junk.$$$
+update %XSRC%/Makefile.DOS ./Makefile
+echo Done.
+if not "%XSRC%"=="." echo Invoke Make thus: "make srcdir=%XSRC%"
+goto End
+
+:SmallEnv
+echo Your environment is too small. Please enlarge it and run me again.
+
+:End
+set XRSC=
diff --git a/debug.h b/debug.h
new file mode 100644
index 0000000..17c394b
--- /dev/null
+++ b/debug.h
@@ -0,0 +1,37 @@
+/* Debugging macros and interface.
+Copyright (C) 1999-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#define DB_NONE (0x000)
+#define DB_BASIC (0x001)
+#define DB_VERBOSE (0x002)
+#define DB_JOBS (0x004)
+#define DB_IMPLICIT (0x008)
+#define DB_MAKEFILES (0x100)
+
+#define DB_ALL (0xfff)
+
+extern int db_level;
+
+#define ISDB(_l) ((_l)&db_level)
+
+#define DBS(_l,_x) do{ if(ISDB(_l)) {print_spaces (depth); \
+ printf _x; fflush (stdout);} }while(0)
+
+#define DBF(_l,_x) do{ if(ISDB(_l)) {print_spaces (depth); \
+ printf (_x, file->name); \
+ fflush (stdout);} }while(0)
+
+#define DB(_l,_x) do{ if(ISDB(_l)) {printf _x; fflush (stdout);} }while(0)
diff --git a/default.c b/default.c
new file mode 100644
index 0000000..3d865c7
--- /dev/null
+++ b/default.c
@@ -0,0 +1,757 @@
+/* Data base of default implicit rules for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "variable.h"
+#include "rule.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+
+/* Define GCC_IS_NATIVE if gcc is the native development environment on
+ your system (gcc/bison/flex vs cc/yacc/lex). */
+#if defined(__MSDOS__) || defined(__EMX__)
+# define GCC_IS_NATIVE
+#endif
+
+
+/* This is the default list of suffixes for suffix rules.
+ '.s' must come last, so that a '.o' file will be made from
+ a '.c' or '.p' or ... file rather than from a .s file. */
+
+static char default_suffixes[]
+#ifdef VMS
+ /* VMS should include all UNIX/POSIX + some VMS extensions */
+ = ".out .exe .a .olb .hlb .tlb .mlb .ln .o .obj .c .cxx .cc .cpp .pas .p \
+.for .f .r .y .l .ym .yl .mar .s .ss .i .ii .mod .sym .def .h .info .dvi \
+.tex .texinfo .texi .txinfo .mem .hlp .brn .rnh .rno .rnt .rnx .w .ch .cweb \
+.web .com .sh .elc .el";
+#elif defined(__EMX__)
+ = ".out .a .ln .o .c .cc .C .cpp .p .f .F .m .r .y .l .ym .yl .s .S \
+.mod .sym .def .h .info .dvi .tex .texinfo .texi .txinfo \
+.w .ch .web .sh .elc .el .obj .exe .dll .lib";
+#else
+ = ".out .a .ln .o .c .cc .C .cpp .p .f .F .m .r .y .l .ym .yl .s .S \
+.mod .sym .def .h .info .dvi .tex .texinfo .texi .txinfo \
+.w .ch .web .sh .elc .el";
+#endif
+
+static struct pspec default_pattern_rules[] =
+ {
+#ifdef VMS
+ { "(%)", "%",
+ "@if f$$search(\"$@\") .eqs. \"\" then $(LIBRARY)/CREATE/"
+ "$(or "
+ "$(patsubst %,TEXT,$(filter %.tlb %.TLB,$@)),"
+ "$(patsubst %,HELP,$(filter %.hlb %.HLB,$@)),"
+ "$(patsubst %,MACRO,$(filter %.mlb %.MLB,$@)),"
+ "$(and "
+ "$(patsubst %,SHARE,$(filter %.olb %.OLB,$@)),"
+ "$(patsubst %,SHARE,$(filter %.exe %.EXE,$<))),"
+ "OBJECT)"
+ " $@\n"
+ "$(AR) $(ARFLAGS) $@ $<" },
+
+#else
+ { "(%)", "%",
+ "$(AR) $(ARFLAGS) $@ $<" },
+#endif
+ /* The X.out rules are only in BSD's default set because
+ BSD Make has no null-suffix rules, so 'foo.out' and
+ 'foo' are the same thing. */
+#ifdef VMS
+ { "%.exe", "%",
+ "$(CP) $< $@" },
+
+#endif
+ { "%.out", "%",
+ "@rm -f $@ \n cp $< $@" },
+
+ /* Syntax is "ctangle foo.w foo.ch foo.c". */
+ { "%.c", "%.w %.ch",
+ "$(CTANGLE) $^ $@" },
+ { "%.tex", "%.w %.ch",
+ "$(CWEAVE) $^ $@" },
+
+ { 0, 0, 0 }
+ };
+
+static struct pspec default_terminal_rules[] =
+ {
+#ifdef VMS
+
+ /* RCS. */
+ { "%", "%$$5lv", /* Multinet style */
+ "if f$$search(\"$@\") .nes. \"\" then +$(CHECKOUT,v)" },
+ { "%", "[.$$rcs]%$$5lv", /* Multinet style */
+ "if f$$search(\"$@\") .nes. \"\" then +$(CHECKOUT,v)" },
+ { "%", "%_v", /* Normal style */
+ "if f$$search(\"$@\") .nes. \"\" then +$(CHECKOUT,v)" },
+ { "%", "[.rcs]%_v", /* Normal style */
+ "if f$$search(\"$@\") .nes. \"\" then +$(CHECKOUT,v)" },
+
+ /* SCCS. */
+ /* ain't no SCCS on vms */
+
+#else
+ /* RCS. */
+ { "%", "%,v",
+ "$(CHECKOUT,v)" },
+ { "%", "RCS/%,v",
+ "$(CHECKOUT,v)" },
+ { "%", "RCS/%",
+ "$(CHECKOUT,v)" },
+
+ /* SCCS. */
+ { "%", "s.%",
+ "$(GET) $(GFLAGS) $(SCCS_OUTPUT_OPTION) $<" },
+ { "%", "SCCS/s.%",
+ "$(GET) $(GFLAGS) $(SCCS_OUTPUT_OPTION) $<" },
+#endif /* !VMS */
+ { 0, 0, 0 }
+ };
+
+static const char *default_suffix_rules[] =
+ {
+#ifdef VMS
+ ".o",
+ "$(LINK.obj) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".obj",
+ "$(LINK.obj) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".s",
+ "$(LINK.s) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".S",
+ "$(LINK.S) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".c",
+ "$(LINK.c) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".cc",
+ "$(LINK.cc) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".C",
+ "$(LINK.C) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".cpp",
+ "$(LINK.cpp) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".f",
+ "$(LINK.f) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".m",
+ "$(LINK.m) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".p",
+ "$(LINK.p) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".F",
+ "$(LINK.F) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".r",
+ "$(LINK.r) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".mod",
+ "$(COMPILE.mod) -o $@ -e $@ $^",
+
+ ".def.sym",
+ "$(COMPILE.def) -o $@ $<",
+
+ ".sh",
+ "copy $< >$@",
+
+ ".obj.exe",
+ "$(LINK.obj) $^ $(LOADLIBES) $(LDLIBS) $(CRT0) /exe=$@",
+ ".mar.exe",
+ "$(COMPILE.mar) $^ \n $(LINK.obj) $(subst .mar,.obj,$^) $(LOADLIBES) $(LDLIBS) $(CRT0) /exe=$@",
+ ".s.o",
+ "$(COMPILE.s) -o $@ $<",
+ ".s.exe",
+ "$(COMPILE.s) $^ \n $(LINK.obj) $(subst .s,.obj,$^) $(LOADLIBES) $(LDLIBS) $(CRT0) /exe=$@",
+ ".c.exe",
+ "$(COMPILE.c) $^ \n $(LINK.obj) $(subst .c,.obj,$^) $(LOADLIBES) $(LDLIBS) $(CRT0) /exe=$@",
+ ".cc.exe",
+#ifdef GCC_IS_NATIVE
+ "$(COMPILE.cc) $^ \n $(LINK.obj) $(CXXSTARTUP),sys$$disk:[]$(subst .cc,.obj,$^) $(LOADLIBES) $(LXLIBS) $(LDLIBS) $(CXXRT0) /exe=$@",
+#else
+ "$(COMPILE.cc) $^ \n $(CXXLINK.obj) $(subst .cc,.obj,$^) $(LOADLIBES) $(LXLIBS) $(LDLIBS) $(CXXRT0) /exe=$@",
+ ".cxx.exe",
+ "$(COMPILE.cxx) $^ \n $(CXXLINK.obj) $(subst .cxx,.obj,$^) $(LOADLIBES) $(LXLIBS) $(LDLIBS) $(CXXRT0) /exe=$@",
+#endif
+ ".for.exe",
+ "$(COMPILE.for) $^ \n $(LINK.obj) $(subst .for,.obj,$^) $(LOADLIBES) $(LDLIBS) /exe=$@",
+ ".pas.exe",
+ "$(COMPILE.pas) $^ \n $(LINK.obj) $(subst .pas,.obj,$^) $(LOADLIBES) $(LDLIBS) /exe=$@",
+
+ ".com",
+ "copy $< >$@",
+
+ ".mar.obj",
+ "$(COMPILE.mar) /obj=$@ $<",
+ ".s.obj",
+ "$(COMPILE.s) /obj=$@ $<",
+ ".ss.obj",
+ "$(COMPILE.s) /obj=$@ $<",
+ ".c.i",
+ "$(COMPILE.c)/prep /list=$@ $<",
+ ".c.s",
+ "$(COMPILE.c)/noobj/machine /list=$@ $<",
+ ".i.s",
+ "$(COMPILE.c)/noprep/noobj/machine /list=$@ $<",
+ ".c.obj",
+ "$(COMPILE.c) /obj=$@ $<",
+ ".c.o",
+ "$(COMPILE.c) /obj=$@ $<",
+ ".cc.ii",
+ "$(COMPILE.cc)/prep /list=$@ $<",
+ ".cc.ss",
+ "$(COMPILE.cc)/noobj/machine /list=$@ $<",
+ ".ii.ss",
+ "$(COMPILE.cc)/noprep/noobj/machine /list=$@ $<",
+ ".cc.obj",
+ "$(COMPILE.cc) /obj=$@ $<",
+ ".cc.o",
+ "$(COMPILE.cc) /obj=$@ $<",
+ ".cxx.obj",
+ "$(COMPILE.cxx) /obj=$@ $<",
+ ".cxx.o",
+ "$(COMPILE.cxx) /obj=$@ $<",
+ ".for.obj",
+ "$(COMPILE.for) /obj=$@ $<",
+ ".for.o",
+ "$(COMPILE.for) /obj=$@ $<",
+ ".pas.obj",
+ "$(COMPILE.pas) /obj=$@ $<",
+ ".pas.o",
+ "$(COMPILE.pas) /obj=$@ $<",
+
+ ".y.c",
+ "$(YACC.y) $< \n rename y_tab.c $@",
+ ".l.c",
+ "$(LEX.l) $< \n rename lexyy.c $@",
+
+ ".texinfo.info",
+ "$(MAKEINFO) $<",
+
+ ".tex.dvi",
+ "$(TEX) $<",
+
+ ".cpp.o",
+ "$(COMPILE.cpp) $(OUTPUT_OPTION) $<",
+ ".f.o",
+ "$(COMPILE.f) $(OUTPUT_OPTION) $<",
+ ".m.o",
+ "$(COMPILE.m) $(OUTPUT_OPTION) $<",
+ ".p.o",
+ "$(COMPILE.p) $(OUTPUT_OPTION) $<",
+ ".r.o",
+ "$(COMPILE.r) $(OUTPUT_OPTION) $<",
+ ".mod.o",
+ "$(COMPILE.mod) -o $@ $<",
+
+ ".c.ln",
+ "$(LINT.c) -C$* $<",
+ ".y.ln",
+ "$(YACC.y) $< \n rename y_tab.c $@",
+
+ ".l.ln",
+ "@$(RM) $*.c\n $(LEX.l) $< > $*.c\n$(LINT.c) -i $*.c -o $@\n $(RM) $*.c",
+
+#else /* ! VMS */
+
+ ".o",
+ "$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".s",
+ "$(LINK.s) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".S",
+ "$(LINK.S) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".c",
+ "$(LINK.c) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".cc",
+ "$(LINK.cc) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".C",
+ "$(LINK.C) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".cpp",
+ "$(LINK.cpp) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".f",
+ "$(LINK.f) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".m",
+ "$(LINK.m) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".p",
+ "$(LINK.p) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".F",
+ "$(LINK.F) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".r",
+ "$(LINK.r) $^ $(LOADLIBES) $(LDLIBS) -o $@",
+ ".mod",
+ "$(COMPILE.mod) -o $@ -e $@ $^",
+
+ ".def.sym",
+ "$(COMPILE.def) -o $@ $<",
+
+ ".sh",
+ "cat $< >$@ \n chmod a+x $@",
+
+ ".s.o",
+ "$(COMPILE.s) -o $@ $<",
+ ".S.o",
+ "$(COMPILE.S) -o $@ $<",
+ ".c.o",
+ "$(COMPILE.c) $(OUTPUT_OPTION) $<",
+ ".cc.o",
+ "$(COMPILE.cc) $(OUTPUT_OPTION) $<",
+ ".C.o",
+ "$(COMPILE.C) $(OUTPUT_OPTION) $<",
+ ".cpp.o",
+ "$(COMPILE.cpp) $(OUTPUT_OPTION) $<",
+ ".f.o",
+ "$(COMPILE.f) $(OUTPUT_OPTION) $<",
+ ".m.o",
+ "$(COMPILE.m) $(OUTPUT_OPTION) $<",
+ ".p.o",
+ "$(COMPILE.p) $(OUTPUT_OPTION) $<",
+ ".F.o",
+ "$(COMPILE.F) $(OUTPUT_OPTION) $<",
+ ".r.o",
+ "$(COMPILE.r) $(OUTPUT_OPTION) $<",
+ ".mod.o",
+ "$(COMPILE.mod) -o $@ $<",
+
+ ".c.ln",
+ "$(LINT.c) -C$* $<",
+ ".y.ln",
+#ifndef __MSDOS__
+ "$(YACC.y) $< \n $(LINT.c) -C$* y.tab.c \n $(RM) y.tab.c",
+#else
+ "$(YACC.y) $< \n $(LINT.c) -C$* y_tab.c \n $(RM) y_tab.c",
+#endif
+ ".l.ln",
+ "@$(RM) $*.c\n $(LEX.l) $< > $*.c\n$(LINT.c) -i $*.c -o $@\n $(RM) $*.c",
+
+ ".y.c",
+#ifndef __MSDOS__
+ "$(YACC.y) $< \n mv -f y.tab.c $@",
+#else
+ "$(YACC.y) $< \n mv -f y_tab.c $@",
+#endif
+ ".l.c",
+ "@$(RM) $@ \n $(LEX.l) $< > $@",
+ ".ym.m",
+ "$(YACC.m) $< \n mv -f y.tab.c $@",
+ ".lm.m",
+ "@$(RM) $@ \n $(LEX.m) $< > $@",
+
+ ".F.f",
+ "$(PREPROCESS.F) $(OUTPUT_OPTION) $<",
+ ".r.f",
+ "$(PREPROCESS.r) $(OUTPUT_OPTION) $<",
+
+ /* This might actually make lex.yy.c if there's no %R% directive in $*.l,
+ but in that case why were you trying to make $*.r anyway? */
+ ".l.r",
+ "$(LEX.l) $< > $@ \n mv -f lex.yy.r $@",
+
+ ".S.s",
+ "$(PREPROCESS.S) $< > $@",
+
+ ".texinfo.info",
+ "$(MAKEINFO) $(MAKEINFO_FLAGS) $< -o $@",
+
+ ".texi.info",
+ "$(MAKEINFO) $(MAKEINFO_FLAGS) $< -o $@",
+
+ ".txinfo.info",
+ "$(MAKEINFO) $(MAKEINFO_FLAGS) $< -o $@",
+
+ ".tex.dvi",
+ "$(TEX) $<",
+
+ ".texinfo.dvi",
+ "$(TEXI2DVI) $(TEXI2DVI_FLAGS) $<",
+
+ ".texi.dvi",
+ "$(TEXI2DVI) $(TEXI2DVI_FLAGS) $<",
+
+ ".txinfo.dvi",
+ "$(TEXI2DVI) $(TEXI2DVI_FLAGS) $<",
+
+ ".w.c",
+ "$(CTANGLE) $< - $@", /* The '-' says there is no '.ch' file. */
+
+ ".web.p",
+ "$(TANGLE) $<",
+
+ ".w.tex",
+ "$(CWEAVE) $< - $@", /* The '-' says there is no '.ch' file. */
+
+ ".web.tex",
+ "$(WEAVE) $<",
+
+#endif /* !VMS */
+
+ 0, 0,
+ };
+
+static const char *default_variables[] =
+ {
+#ifdef VMS
+#ifdef __ALPHA
+ "ARCH", "ALPHA",
+#endif
+#ifdef __ia64
+ "ARCH", "IA64",
+#endif
+#ifdef __VAX
+ "ARCH", "VAX",
+#endif
+ "AR", "library",
+ "LIBRARY", "library",
+ "ARFLAGS", "/replace",
+ "AS", "macro",
+ "MACRO", "macro",
+#ifdef GCC_IS_NATIVE
+ "CC", "gcc",
+#else
+ "CC", "cc",
+#endif
+ "CD", "builtin_cd",
+ "ECHO", "builtin_echo",
+#ifdef GCC_IS_NATIVE
+ "C++", "gcc/plus",
+ "CXX", "gcc/plus",
+#else
+ "C++", "cxx",
+ "CXX", "cxx",
+#ifndef __ia64
+ "CXXLD", "cxxlink",
+ "CXXLINK", "cxxlink",
+#else
+ /* CXXLINK is not used on VMS/IA64 */
+ "CXXLD", "link",
+ "CXXLINK", "link",
+#endif
+#endif
+ "CO", "co",
+ "CPP", "$(CC) /preprocess_only",
+ "FC", "fortran",
+ /* System V uses these, so explicit rules using them should work.
+ However, there is no way to make implicit rules use them and FC. */
+ "F77", "$(FC)",
+ "F77FLAGS", "$(FFLAGS)",
+ "LD", "link",
+ "LEX", "lex",
+ "PC", "pascal",
+ "YACC", "bison/yacc",
+ "YFLAGS", "/Define/Verbose",
+ "BISON", "bison",
+ "MAKEINFO", "makeinfo",
+ "TEX", "tex",
+ "TEXINDEX", "texindex",
+
+ "RM", "delete/nolog",
+
+ "CSTARTUP", "",
+#ifdef GCC_IS_NATIVE
+ "CRT0", ",sys$$library:vaxcrtl.olb/lib,gnu_cc_library:crt0.obj",
+ "CXXSTARTUP", "gnu_cc_library:crtbegin.obj",
+ "CXXRT0", ",sys$$library:vaxcrtl.olb/lib,gnu_cc_library:crtend.obj,gnu_cc_library:gxx_main.obj",
+ "LXLIBS", ",gnu_cc_library:libstdcxx.olb/lib,gnu_cc_library:libgccplus.olb/lib",
+ "LDLIBS", ",gnu_cc_library:libgcc.olb/lib",
+#else
+ "CRT0", "",
+ "CXXSTARTUP", "",
+ "CXXRT0", "",
+ "LXLIBS", "",
+ "LDLIBS", "",
+#endif
+
+ "LINK.o", "$(LD) $(LDFLAGS)",
+ "LINK.obj", "$(LD) $(LDFLAGS)",
+#ifndef GCC_IS_NATIVE
+ "CXXLINK.obj", "$(CXXLD) $(LDFLAGS)",
+ "COMPILE.cxx", "$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+#endif
+ "COMPILE.c", "$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+ "LINK.c", "$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+ "COMPILE.m", "$(OBJC) $(OBJCFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.m", "$(OBJC) $(OBJCFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.cc", "$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+ "COMPILE.C", "$(COMPILE.cc)",
+ "COMPILE.cpp", "$(COMPILE.cc)",
+ "LINK.C", "$(LINK.cc)",
+ "LINK.cpp", "$(LINK.cc)",
+ "YACC.y", "$(YACC) $(YFLAGS)",
+ "LEX.l", "$(LEX) $(LFLAGS)",
+ "YACC.m", "$(YACC) $(YFLAGS)",
+ "LEX.m", "$(LEX) $(LFLAGS) -t",
+ "COMPILE.for", "$(FC) $(FFLAGS) $(TARGET_ARCH)",
+ "COMPILE.f", "$(FC) $(FFLAGS) $(TARGET_ARCH) -c",
+ "LINK.f", "$(FC) $(FFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.r", "$(FC) $(FFLAGS) $(RFLAGS) $(TARGET_ARCH) -c",
+ "LINK.r", "$(FC) $(FFLAGS) $(RFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.pas", "$(PC) $(PFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+ "COMPILE.def", "$(M2C) $(M2FLAGS) $(DEFFLAGS) $(TARGET_ARCH)",
+ "COMPILE.mod", "$(M2C) $(M2FLAGS) $(MODFLAGS) $(TARGET_ARCH)",
+ "COMPILE.p", "$(PC) $(PFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.p", "$(PC) $(PFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.mar", "$(MACRO) $(MACROFLAGS)",
+ "COMPILE.s", "$(AS) $(ASFLAGS) $(TARGET_MACH)",
+ "LINK.S", "$(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_MACH)",
+ "COMPILE.S", "$(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_MACH) -c",
+ "PREPROCESS.S", "$(CC) -E $(CPPFLAGS)",
+ "PREPROCESS.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -F",
+ "PREPROCESS.r", "$(FC) $(FFLAGS) $(RFLAGS) $(TARGET_ARCH) -F",
+ "LINT.c", "$(LINT) $(LINTFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+
+ "MV", "rename/new_version",
+ "CP", "copy",
+ ".LIBPATTERNS", "%.olb lib%.a",
+
+#else /* !VMS */
+
+ "AR", "ar",
+ "ARFLAGS", "rv",
+ "AS", "as",
+#ifdef GCC_IS_NATIVE
+ "CC", "gcc",
+# ifdef __MSDOS__
+ "CXX", "gpp", /* g++ is an invalid name on MSDOS */
+# else
+ "CXX", "gcc",
+# endif /* __MSDOS__ */
+ "OBJC", "gcc",
+#else
+ "CC", "cc",
+ "CXX", "g++",
+ "OBJC", "cc",
+#endif
+
+ /* This expands to $(CO) $(COFLAGS) $< $@ if $@ does not exist,
+ and to the empty string if $@ does exist. */
+ "CHECKOUT,v", "+$(if $(wildcard $@),,$(CO) $(COFLAGS) $< $@)",
+ "CO", "co",
+ "COFLAGS", "",
+
+ "CPP", "$(CC) -E",
+#ifdef CRAY
+ "CF77PPFLAGS", "-P",
+ "CF77PP", "/lib/cpp",
+ "CFT", "cft77",
+ "CF", "cf77",
+ "FC", "$(CF)",
+#else /* Not CRAY. */
+#ifdef _IBMR2
+ "FC", "xlf",
+#else
+#ifdef __convex__
+ "FC", "fc",
+#else
+ "FC", "f77",
+#endif /* __convex__ */
+#endif /* _IBMR2 */
+ /* System V uses these, so explicit rules using them should work.
+ However, there is no way to make implicit rules use them and FC. */
+ "F77", "$(FC)",
+ "F77FLAGS", "$(FFLAGS)",
+#endif /* Cray. */
+ "GET", SCCS_GET,
+ "LD", "ld",
+#ifdef GCC_IS_NATIVE
+ "LEX", "flex",
+#else
+ "LEX", "lex",
+#endif
+ "LINT", "lint",
+ "M2C", "m2c",
+#ifdef pyr
+ "PC", "pascal",
+#else
+#ifdef CRAY
+ "PC", "PASCAL",
+ "SEGLDR", "segldr",
+#else
+ "PC", "pc",
+#endif /* CRAY. */
+#endif /* pyr. */
+#ifdef GCC_IS_NATIVE
+ "YACC", "bison -y",
+#else
+ "YACC", "yacc", /* Or "bison -y" */
+#endif
+ "MAKEINFO", "makeinfo",
+ "TEX", "tex",
+ "TEXI2DVI", "texi2dvi",
+ "WEAVE", "weave",
+ "CWEAVE", "cweave",
+ "TANGLE", "tangle",
+ "CTANGLE", "ctangle",
+
+ "RM", "rm -f",
+
+ "LINK.o", "$(CC) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.c", "$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.c", "$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.m", "$(OBJC) $(OBJCFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.m", "$(OBJC) $(OBJCFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.cc", "$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+#ifndef HAVE_CASE_INSENSITIVE_FS
+ /* On case-insensitive filesystems, treat *.C files as *.c files,
+ to avoid erroneously compiling C sources as C++, which will
+ probably fail. */
+ "COMPILE.C", "$(COMPILE.cc)",
+#else
+ "COMPILE.C", "$(COMPILE.c)",
+#endif
+ "COMPILE.cpp", "$(COMPILE.cc)",
+ "LINK.cc", "$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+#ifndef HAVE_CASE_INSENSITIVE_FS
+ "LINK.C", "$(LINK.cc)",
+#else
+ "LINK.C", "$(LINK.c)",
+#endif
+ "LINK.cpp", "$(LINK.cc)",
+ "YACC.y", "$(YACC) $(YFLAGS)",
+ "LEX.l", "$(LEX) $(LFLAGS) -t",
+ "YACC.m", "$(YACC) $(YFLAGS)",
+ "LEX.m", "$(LEX) $(LFLAGS) -t",
+ "COMPILE.f", "$(FC) $(FFLAGS) $(TARGET_ARCH) -c",
+ "LINK.f", "$(FC) $(FFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.r", "$(FC) $(FFLAGS) $(RFLAGS) $(TARGET_ARCH) -c",
+ "LINK.r", "$(FC) $(FFLAGS) $(RFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "COMPILE.def", "$(M2C) $(M2FLAGS) $(DEFFLAGS) $(TARGET_ARCH)",
+ "COMPILE.mod", "$(M2C) $(M2FLAGS) $(MODFLAGS) $(TARGET_ARCH)",
+ "COMPILE.p", "$(PC) $(PFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c",
+ "LINK.p", "$(PC) $(PFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)",
+ "LINK.s", "$(CC) $(ASFLAGS) $(LDFLAGS) $(TARGET_MACH)",
+ "COMPILE.s", "$(AS) $(ASFLAGS) $(TARGET_MACH)",
+ "LINK.S", "$(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_MACH)",
+ "COMPILE.S", "$(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_MACH) -c",
+ "PREPROCESS.S", "$(CC) -E $(CPPFLAGS)",
+ "PREPROCESS.F", "$(FC) $(FFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -F",
+ "PREPROCESS.r", "$(FC) $(FFLAGS) $(RFLAGS) $(TARGET_ARCH) -F",
+ "LINT.c", "$(LINT) $(LINTFLAGS) $(CPPFLAGS) $(TARGET_ARCH)",
+
+#ifndef NO_MINUS_C_MINUS_O
+ "OUTPUT_OPTION", "-o $@",
+#endif
+
+#ifdef SCCS_GET_MINUS_G
+ "SCCS_OUTPUT_OPTION", "-G$@",
+#endif
+
+#if defined(_AMIGA)
+ ".LIBPATTERNS", "%.lib",
+#elif defined(__MSDOS__)
+ ".LIBPATTERNS", "lib%.a $(DJDIR)/lib/lib%.a",
+#elif defined(__APPLE__)
+ ".LIBPATTERNS", "lib%.dylib lib%.a",
+#elif defined(__CYGWIN__) || defined(WINDOWS32)
+ ".LIBPATTERNS", "lib%.dll.a %.dll.a lib%.a %.lib lib%.dll %.dll",
+#else
+ ".LIBPATTERNS", "lib%.so lib%.a",
+#endif
+
+#endif /* !VMS */
+ /* Make this assignment to avoid undefined variable warnings. */
+ "GNUMAKEFLAGS", "",
+ 0, 0
+ };
+
+/* Set up the default .SUFFIXES list. */
+
+void
+set_default_suffixes (void)
+{
+ suffix_file = enter_file (strcache_add (".SUFFIXES"));
+ suffix_file->builtin = 1;
+
+ if (no_builtin_rules_flag)
+ define_variable_cname ("SUFFIXES", "", o_default, 0);
+ else
+ {
+ struct dep *d;
+ const char *p = default_suffixes;
+ suffix_file->deps = enter_prereqs (PARSE_SIMPLE_SEQ ((char **)&p, struct dep),
+ NULL);
+ for (d = suffix_file->deps; d; d = d->next)
+ d->file->builtin = 1;
+
+ define_variable_cname ("SUFFIXES", default_suffixes, o_default, 0);
+ }
+}
+
+/* Enter the default suffix rules as file rules. This used to be done in
+ install_default_implicit_rules, but that loses because we want the
+ suffix rules installed before reading makefiles, and the pattern rules
+ installed after. */
+
+void
+install_default_suffix_rules (void)
+{
+ const char **s;
+
+ if (no_builtin_rules_flag)
+ return;
+
+ for (s = default_suffix_rules; *s != 0; s += 2)
+ {
+ struct file *f = enter_file (strcache_add (s[0]));
+ /* This function should run before any makefile is parsed. */
+ assert (f->cmds == 0);
+ f->cmds = xmalloc (sizeof (struct commands));
+ f->cmds->fileinfo.filenm = 0;
+ f->cmds->commands = xstrdup (s[1]);
+ f->cmds->command_lines = 0;
+ f->cmds->recipe_prefix = RECIPEPREFIX_DEFAULT;
+ f->builtin = 1;
+ }
+}
+
+
+/* Install the default pattern rules. */
+
+void
+install_default_implicit_rules (void)
+{
+ struct pspec *p;
+
+ if (no_builtin_rules_flag)
+ return;
+
+ for (p = default_pattern_rules; p->target != 0; ++p)
+ install_pattern_rule (p, 0);
+
+ for (p = default_terminal_rules; p->target != 0; ++p)
+ install_pattern_rule (p, 1);
+}
+
+void
+define_default_variables (void)
+{
+ const char **s;
+
+ if (no_builtin_variables_flag)
+ return;
+
+ for (s = default_variables; *s != 0; s += 2)
+ define_variable (s[0], strlen (s[0]), s[1], o_default, 1);
+}
+
+void
+undefine_default_variables (void)
+{
+ const char **s;
+
+ for (s = default_variables; *s != 0; s += 2)
+ undefine_variable_global (s[0], strlen (s[0]), o_default);
+}
diff --git a/dep.h b/dep.h
new file mode 100644
index 0000000..7f5076e
--- /dev/null
+++ b/dep.h
@@ -0,0 +1,131 @@
+/* Definitions of dependency data structures for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Structure used in chains of names, for parsing and globbing. */
+
+#define NAMESEQ(_t) \
+ _t *next; \
+ const char *name
+
+struct nameseq
+ {
+ NAMESEQ (struct nameseq);
+ };
+
+/* Flag bits for the second argument to 'read_makefile'.
+ These flags are saved in the 'flags' field of each
+ 'struct goaldep' in the chain returned by 'read_all_makefiles'. */
+
+#define RM_NO_DEFAULT_GOAL (1 << 0) /* Do not set default goal. */
+#define RM_INCLUDED (1 << 1) /* Search makefile search path. */
+#define RM_DONTCARE (1 << 2) /* No error if it doesn't exist. */
+#define RM_NO_TILDE (1 << 3) /* Don't expand ~ in file name. */
+#define RM_NOFLAG 0
+
+/* Structure representing one dependency of a file.
+ Each struct file's 'deps' points to a chain of these, through 'next'.
+ 'stem' is the stem for this dep line of static pattern rule or NULL. */
+
+#define DEP(_t) \
+ NAMESEQ (_t); \
+ struct file *file; \
+ const char *stem; \
+ unsigned short flags : 8; \
+ unsigned short changed : 1; \
+ unsigned short ignore_mtime : 1; \
+ unsigned short staticpattern : 1; \
+ unsigned short need_2nd_expansion : 1
+
+struct dep
+ {
+ DEP (struct dep);
+ };
+
+/* Structure representing one goal.
+ The goals to be built constitute a chain of these, chained through 'next'.
+ 'stem' is not used, but it's simpler to include and ignore it. */
+
+struct goaldep
+ {
+ DEP (struct goaldep);
+ unsigned short error;
+ floc floc;
+ };
+
+/* Options for parsing lists of filenames. */
+
+#define PARSEFS_NONE 0x0000
+#define PARSEFS_NOSTRIP 0x0001
+#define PARSEFS_NOAR 0x0002
+#define PARSEFS_NOGLOB 0x0004
+#define PARSEFS_EXISTS 0x0008
+#define PARSEFS_NOCACHE 0x0010
+
+#define PARSE_FILE_SEQ(_s,_t,_c,_p,_f) \
+ (_t *)parse_file_seq ((_s),sizeof (_t),(_c),(_p),(_f))
+#define PARSE_SIMPLE_SEQ(_s,_t) \
+ (_t *)parse_file_seq ((_s),sizeof (_t),MAP_NUL,NULL,PARSEFS_NONE)
+
+#ifdef VMS
+void *parse_file_seq ();
+#else
+void *parse_file_seq (char **stringp, unsigned int size,
+ int stopmap, const char *prefix, int flags);
+#endif
+
+char *tilde_expand (const char *name);
+
+#ifndef NO_ARCHIVES
+struct nameseq *ar_glob (const char *arname, const char *member_pattern, unsigned int size);
+#endif
+
+#define dep_name(d) ((d)->name ? (d)->name : (d)->file->name)
+
+#define alloc_seq_elt(_t) xcalloc (sizeof (_t))
+void free_ns_chain (struct nameseq *n);
+
+#if defined(MAKE_MAINTAINER_MODE) && defined(__GNUC__)
+/* Use inline to get real type-checking. */
+#define SI static inline
+SI struct nameseq *alloc_ns() { return alloc_seq_elt (struct nameseq); }
+SI struct dep *alloc_dep() { return alloc_seq_elt (struct dep); }
+SI struct goaldep *alloc_goaldep() { return alloc_seq_elt (struct goaldep); }
+
+SI void free_ns(struct nameseq *n) { free (n); }
+SI void free_dep(struct dep *d) { free_ns ((struct nameseq *)d); }
+SI void free_goaldep(struct goaldep *g) { free_dep ((struct dep *)g); }
+
+SI void free_dep_chain(struct dep *d) { free_ns_chain((struct nameseq *)d); }
+SI void free_goal_chain(struct goaldep *g) { free_dep_chain((struct dep *)g); }
+#else
+# define alloc_ns() alloc_seq_elt (struct nameseq)
+# define alloc_dep() alloc_seq_elt (struct dep)
+# define alloc_goaldep() alloc_seq_elt (struct goaldep)
+
+# define free_ns(_n) free (_n)
+# define free_dep(_d) free_ns (_d)
+# define free_goaldep(_g) free_dep (_g)
+
+# define free_dep_chain(_d) free_ns_chain ((struct nameseq *)(_d))
+# define free_goal_chain(_g) free_ns_chain ((struct nameseq *)(_g))
+#endif
+
+struct dep *copy_dep_chain (const struct dep *d);
+
+struct goaldep *read_all_makefiles (const char **makefiles);
+void eval_buffer (char *buffer, const floc *floc);
+enum update_status update_goal_chain (struct goaldep *goals);
diff --git a/dir.c b/dir.c
new file mode 100644
index 0000000..f34bbf5
--- /dev/null
+++ b/dir.c
@@ -0,0 +1,1321 @@
+/* Directory hashing for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "hash.h"
+#include "filedef.h"
+#include "dep.h"
+
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+# ifdef VMS
+/* its prototype is in vmsdir.h, which is not needed for HAVE_DIRENT_H */
+const char *vmsify (const char *name, int type);
+# endif
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# endif
+# ifdef HAVE_VMSDIR_H
+# include "vmsdir.h"
+# endif /* HAVE_VMSDIR_H */
+#endif
+
+/* In GNU systems, <dirent.h> defines this macro for us. */
+#ifdef _D_NAMLEN
+# undef NAMLEN
+# define NAMLEN(d) _D_NAMLEN(d)
+#endif
+
+#if (defined (POSIX) || defined (VMS) || defined (WINDOWS32)) && !defined (__GNU_LIBRARY__)
+/* Posix does not require that the d_ino field be present, and some
+ systems do not provide it. */
+# define REAL_DIR_ENTRY(dp) 1
+# define FAKE_DIR_ENTRY(dp)
+#else
+# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
+# define FAKE_DIR_ENTRY(dp) (dp->d_ino = 1)
+#endif /* POSIX */
+
+#ifdef __MSDOS__
+#include <ctype.h>
+#include <fcntl.h>
+
+/* If it's MSDOS that doesn't have _USE_LFN, disable LFN support. */
+#ifndef _USE_LFN
+#define _USE_LFN 0
+#endif
+
+static const char *
+dosify (const char *filename)
+{
+ static char dos_filename[14];
+ char *df;
+ int i;
+
+ if (filename == 0 || _USE_LFN)
+ return filename;
+
+ /* FIXME: what about filenames which violate
+ 8+3 constraints, like "config.h.in", or ".emacs"? */
+ if (strpbrk (filename, "\"*+,;<=>?[\\]|") != 0)
+ return filename;
+
+ df = dos_filename;
+
+ /* First, transform the name part. */
+ for (i = 0; i < 8 && ! STOP_SET (*filename, MAP_DOT|MAP_NUL); ++i)
+ *df++ = tolower ((unsigned char)*filename++);
+
+ /* Now skip to the next dot. */
+ while (! STOP_SET (*filename, MAP_DOT|MAP_NUL))
+ ++filename;
+ if (*filename != '\0')
+ {
+ *df++ = *filename++;
+ for (i = 0; i < 3 && ! STOP_SET (*filename, MAP_DOT|MAP_NUL); ++i)
+ *df++ = tolower ((unsigned char)*filename++);
+ }
+
+ /* Look for more dots. */
+ while (! STOP_SET (*filename, MAP_DOT|MAP_NUL))
+ ++filename;
+ if (*filename == '.')
+ return filename;
+ *df = 0;
+ return dos_filename;
+}
+#endif /* __MSDOS__ */
+
+#ifdef WINDOWS32
+#include "pathstuff.h"
+#endif
+
+#ifdef _AMIGA
+#include <ctype.h>
+#endif
+
+#ifdef HAVE_CASE_INSENSITIVE_FS
+static const char *
+downcase (const char *filename)
+{
+ static PATH_VAR (new_filename);
+ char *df;
+
+ if (filename == 0)
+ return 0;
+
+ df = new_filename;
+ while (*filename != '\0')
+ {
+ *df++ = tolower ((unsigned char)*filename);
+ ++filename;
+ }
+
+ *df = 0;
+
+ return new_filename;
+}
+#endif /* HAVE_CASE_INSENSITIVE_FS */
+
+#ifdef VMS
+
+static char *
+downcase_inplace(char *filename)
+{
+ char *name;
+ name = filename;
+ while (*name != '\0')
+ {
+ *name = tolower ((unsigned char)*name);
+ ++name;
+ }
+ return filename;
+}
+
+#ifndef _USE_STD_STAT
+/* VMS 8.2 fixed the VMS stat output to have unique st_dev and st_ino
+ when _USE_STD_STAT is used on the compile line.
+
+ Prior to _USE_STD_STAT support, the st_dev is a pointer to thread
+ static memory containing the device of the last filename looked up.
+
+ Todo: find out if the ino_t still needs to be faked on a directory.
+ */
+
+/* Define this if the older VMS_INO_T is needed */
+#define VMS_INO_T 1
+
+static int
+vms_hash (const char *name)
+{
+ int h = 0;
+
+ while (*name)
+ {
+ unsigned char uc = *name;
+ int g;
+#ifdef HAVE_CASE_INSENSITIVE_FS
+ h = (h << 4) + (isupper (uc) ? tolower (uc) : uc);
+#else
+ h = (h << 4) + uc;
+#endif
+ name++;
+ g = h & 0xf0000000;
+ if (g)
+ {
+ h = h ^ (g >> 24);
+ h = h ^ g;
+ }
+ }
+ return h;
+}
+
+/* fake stat entry for a directory */
+static int
+vmsstat_dir (const char *name, struct stat *st)
+{
+ char *s;
+ int h;
+ DIR *dir;
+
+ dir = opendir (name);
+ if (dir == 0)
+ return -1;
+ closedir (dir);
+ s = strchr (name, ':'); /* find device */
+ if (s)
+ {
+ /* to keep the compiler happy we said "const char *name", now we cheat */
+ *s++ = 0;
+ st->st_dev = (char *)vms_hash (name);
+ h = vms_hash (s);
+ *(s-1) = ':';
+ }
+ else
+ {
+ st->st_dev = 0;
+ h = vms_hash (name);
+ }
+
+ st->st_ino[0] = h & 0xff;
+ st->st_ino[1] = h & 0xff00;
+ st->st_ino[2] = h >> 16;
+
+ return 0;
+}
+
+# define stat(__path, __sbuf) vmsstat_dir (__path, __sbuf)
+
+#endif /* _USE_STD_STAT */
+#endif /* VMS */
+
+/* Hash table of directories. */
+
+#ifndef DIRECTORY_BUCKETS
+#define DIRECTORY_BUCKETS 199
+#endif
+
+struct directory_contents
+ {
+ dev_t dev; /* Device and inode numbers of this dir. */
+#ifdef WINDOWS32
+ /* Inode means nothing on WINDOWS32. Even file key information is
+ * unreliable because it is random per file open and undefined for remote
+ * filesystems. The most unique attribute I can come up with is the fully
+ * qualified name of the directory. Beware though, this is also
+ * unreliable. I'm open to suggestion on a better way to emulate inode. */
+ char *path_key;
+ time_t ctime;
+ time_t mtime; /* controls check for stale directory cache */
+ int fs_flags; /* FS_FAT, FS_NTFS, ... */
+# define FS_FAT 0x1
+# define FS_NTFS 0x2
+# define FS_UNKNOWN 0x4
+#else
+# ifdef VMS_INO_T
+ ino_t ino[3];
+# else
+ ino_t ino;
+# endif
+#endif /* WINDOWS32 */
+ struct hash_table dirfiles; /* Files in this directory. */
+ DIR *dirstream; /* Stream reading this directory. */
+ };
+
+static unsigned long
+directory_contents_hash_1 (const void *key_0)
+{
+ const struct directory_contents *key = key_0;
+ unsigned long hash;
+
+#ifdef WINDOWS32
+ hash = 0;
+ ISTRING_HASH_1 (key->path_key, hash);
+ hash ^= ((unsigned int) key->dev << 4) ^ (unsigned int) key->ctime;
+#else
+# ifdef VMS_INO_T
+ hash = (((unsigned int) key->dev << 4)
+ ^ ((unsigned int) key->ino[0]
+ + (unsigned int) key->ino[1]
+ + (unsigned int) key->ino[2]));
+# else
+ hash = ((unsigned int) key->dev << 4) ^ (unsigned int) key->ino;
+# endif
+#endif /* WINDOWS32 */
+ return hash;
+}
+
+static unsigned long
+directory_contents_hash_2 (const void *key_0)
+{
+ const struct directory_contents *key = key_0;
+ unsigned long hash;
+
+#ifdef WINDOWS32
+ hash = 0;
+ ISTRING_HASH_2 (key->path_key, hash);
+ hash ^= ((unsigned int) key->dev << 4) ^ (unsigned int) ~key->ctime;
+#else
+# ifdef VMS_INO_T
+ hash = (((unsigned int) key->dev << 4)
+ ^ ~((unsigned int) key->ino[0]
+ + (unsigned int) key->ino[1]
+ + (unsigned int) key->ino[2]));
+# else
+ hash = ((unsigned int) key->dev << 4) ^ (unsigned int) ~key->ino;
+# endif
+#endif /* WINDOWS32 */
+
+ return hash;
+}
+
+/* Sometimes it's OK to use subtraction to get this value:
+ result = X - Y;
+ But, if we're not sure of the type of X and Y they may be too large for an
+ int (on a 64-bit system for example). So, use ?: instead.
+ See Savannah bug #15534.
+
+ NOTE! This macro has side-effects!
+*/
+
+#define MAKECMP(_x,_y) ((_x)<(_y)?-1:((_x)==(_y)?0:1))
+
+static int
+directory_contents_hash_cmp (const void *xv, const void *yv)
+{
+ const struct directory_contents *x = xv;
+ const struct directory_contents *y = yv;
+ int result;
+
+#ifdef WINDOWS32
+ ISTRING_COMPARE (x->path_key, y->path_key, result);
+ if (result)
+ return result;
+ result = MAKECMP(x->ctime, y->ctime);
+ if (result)
+ return result;
+#else
+# ifdef VMS_INO_T
+ result = MAKECMP(x->ino[0], y->ino[0]);
+ if (result)
+ return result;
+ result = MAKECMP(x->ino[1], y->ino[1]);
+ if (result)
+ return result;
+ result = MAKECMP(x->ino[2], y->ino[2]);
+ if (result)
+ return result;
+# else
+ result = MAKECMP(x->ino, y->ino);
+ if (result)
+ return result;
+# endif
+#endif /* WINDOWS32 */
+
+ return MAKECMP(x->dev, y->dev);
+}
+
+/* Table of directory contents hashed by device and inode number. */
+static struct hash_table directory_contents;
+
+struct directory
+ {
+ const char *name; /* Name of the directory. */
+
+ /* The directory's contents. This data may be shared by several
+ entries in the hash table, which refer to the same directory
+ (identified uniquely by 'dev' and 'ino') under different names. */
+ struct directory_contents *contents;
+ };
+
+static unsigned long
+directory_hash_1 (const void *key)
+{
+ return_ISTRING_HASH_1 (((const struct directory *) key)->name);
+}
+
+static unsigned long
+directory_hash_2 (const void *key)
+{
+ return_ISTRING_HASH_2 (((const struct directory *) key)->name);
+}
+
+static int
+directory_hash_cmp (const void *x, const void *y)
+{
+ return_ISTRING_COMPARE (((const struct directory *) x)->name,
+ ((const struct directory *) y)->name);
+}
+
+/* Table of directories hashed by name. */
+static struct hash_table directories;
+
+/* Never have more than this many directories open at once. */
+
+#define MAX_OPEN_DIRECTORIES 10
+
+static unsigned int open_directories = 0;
+
+
+/* Hash table of files in each directory. */
+
+struct dirfile
+ {
+ const char *name; /* Name of the file. */
+ size_t length;
+ short impossible; /* This file is impossible. */
+ };
+
+static unsigned long
+dirfile_hash_1 (const void *key)
+{
+ return_ISTRING_HASH_1 (((struct dirfile const *) key)->name);
+}
+
+static unsigned long
+dirfile_hash_2 (const void *key)
+{
+ return_ISTRING_HASH_2 (((struct dirfile const *) key)->name);
+}
+
+static int
+dirfile_hash_cmp (const void *xv, const void *yv)
+{
+ const struct dirfile *x = xv;
+ const struct dirfile *y = yv;
+ int result = x->length - y->length;
+ if (result)
+ return result;
+ return_ISTRING_COMPARE (x->name, y->name);
+}
+
+#ifndef DIRFILE_BUCKETS
+#define DIRFILE_BUCKETS 107
+#endif
+
+static int dir_contents_file_exists_p (struct directory_contents *dir,
+ const char *filename);
+static struct directory *find_directory (const char *name);
+
+/* Find the directory named NAME and return its 'struct directory'. */
+
+static struct directory *
+find_directory (const char *name)
+{
+ struct directory *dir;
+ struct directory **dir_slot;
+ struct directory dir_key;
+
+ dir_key.name = name;
+ dir_slot = (struct directory **) hash_find_slot (&directories, &dir_key);
+ dir = *dir_slot;
+
+ if (HASH_VACANT (dir))
+ {
+ /* The directory was not found. Create a new entry for it. */
+ const char *p = name + strlen (name);
+ struct stat st;
+ int r;
+
+ dir = xmalloc (sizeof (struct directory));
+#if defined(HAVE_CASE_INSENSITIVE_FS) && defined(VMS)
+ /* Todo: Why is this only needed on VMS? */
+ {
+ char *lname = downcase_inplace (xstrdup (name));
+ dir->name = strcache_add_len (lname, p - name);
+ free (lname);
+ }
+#else
+ dir->name = strcache_add_len (name, p - name);
+#endif
+ hash_insert_at (&directories, dir, dir_slot);
+ /* The directory is not in the name hash table.
+ Find its device and inode numbers, and look it up by them. */
+
+#if defined(WINDOWS32)
+ {
+ char tem[MAXPATHLEN], *tstart, *tend;
+
+ /* Remove any trailing slashes. Windows32 stat fails even on
+ valid directories if they end in a slash. */
+ memcpy (tem, name, p - name + 1);
+ tstart = tem;
+ if (tstart[1] == ':')
+ tstart += 2;
+ for (tend = tem + (p - name - 1);
+ tend > tstart && (*tend == '/' || *tend == '\\');
+ tend--)
+ *tend = '\0';
+
+ r = stat (tem, &st);
+ }
+#else
+ EINTRLOOP (r, stat (name, &st));
+#endif
+
+ if (r < 0)
+ {
+ /* Couldn't stat the directory. Mark this by
+ setting the 'contents' member to a nil pointer. */
+ dir->contents = 0;
+ }
+ else
+ {
+ /* Search the contents hash table; device and inode are the key. */
+
+#ifdef WINDOWS32
+ char *w32_path;
+#endif
+ struct directory_contents *dc;
+ struct directory_contents **dc_slot;
+ struct directory_contents dc_key;
+
+ dc_key.dev = st.st_dev;
+#ifdef WINDOWS32
+ dc_key.path_key = w32_path = w32ify (name, 1);
+ dc_key.ctime = st.st_ctime;
+#else
+# ifdef VMS_INO_T
+ dc_key.ino[0] = st.st_ino[0];
+ dc_key.ino[1] = st.st_ino[1];
+ dc_key.ino[2] = st.st_ino[2];
+# else
+ dc_key.ino = st.st_ino;
+# endif
+#endif
+ dc_slot = (struct directory_contents **) hash_find_slot (&directory_contents, &dc_key);
+ dc = *dc_slot;
+
+ if (HASH_VACANT (dc))
+ {
+ /* Nope; this really is a directory we haven't seen before. */
+#ifdef WINDOWS32
+ char fs_label[BUFSIZ];
+ char fs_type[BUFSIZ];
+ unsigned long fs_serno;
+ unsigned long fs_flags;
+ unsigned long fs_len;
+#endif
+ dc = (struct directory_contents *)
+ xmalloc (sizeof (struct directory_contents));
+
+ /* Enter it in the contents hash table. */
+ dc->dev = st.st_dev;
+#ifdef WINDOWS32
+ dc->path_key = xstrdup (w32_path);
+ dc->ctime = st.st_ctime;
+ dc->mtime = st.st_mtime;
+
+ /* NTFS is the only WINDOWS32 filesystem that bumps mtime on a
+ directory when files are added/deleted from a directory. */
+ w32_path[3] = '\0';
+ if (GetVolumeInformation (w32_path, fs_label, sizeof (fs_label),
+ &fs_serno, &fs_len, &fs_flags, fs_type,
+ sizeof (fs_type)) == FALSE)
+ dc->fs_flags = FS_UNKNOWN;
+ else if (!strcmp (fs_type, "FAT"))
+ dc->fs_flags = FS_FAT;
+ else if (!strcmp (fs_type, "NTFS"))
+ dc->fs_flags = FS_NTFS;
+ else
+ dc->fs_flags = FS_UNKNOWN;
+#else
+# ifdef VMS_INO_T
+ dc->ino[0] = st.st_ino[0];
+ dc->ino[1] = st.st_ino[1];
+ dc->ino[2] = st.st_ino[2];
+# else
+ dc->ino = st.st_ino;
+# endif
+#endif /* WINDOWS32 */
+ hash_insert_at (&directory_contents, dc, dc_slot);
+ ENULLLOOP (dc->dirstream, opendir (name));
+ if (dc->dirstream == 0)
+ /* Couldn't open the directory. Mark this by setting the
+ 'files' member to a nil pointer. */
+ dc->dirfiles.ht_vec = 0;
+ else
+ {
+ hash_init (&dc->dirfiles, DIRFILE_BUCKETS,
+ dirfile_hash_1, dirfile_hash_2, dirfile_hash_cmp);
+ /* Keep track of how many directories are open. */
+ ++open_directories;
+ if (open_directories == MAX_OPEN_DIRECTORIES)
+ /* We have too many directories open already.
+ Read the entire directory and then close it. */
+ dir_contents_file_exists_p (dc, 0);
+ }
+ }
+
+ /* Point the name-hashed entry for DIR at its contents data. */
+ dir->contents = dc;
+ }
+ }
+
+ return dir;
+}
+
+/* Return 1 if the name FILENAME is entered in DIR's hash table.
+ FILENAME must contain no slashes. */
+
+static int
+dir_contents_file_exists_p (struct directory_contents *dir,
+ const char *filename)
+{
+ struct dirfile *df;
+ struct dirent *d;
+#ifdef WINDOWS32
+ struct stat st;
+ int rehash = 0;
+#endif
+
+ if (dir == 0 || dir->dirfiles.ht_vec == 0)
+ /* The directory could not be stat'd or opened. */
+ return 0;
+
+#ifdef __MSDOS__
+ filename = dosify (filename);
+#endif
+
+#ifdef HAVE_CASE_INSENSITIVE_FS
+ filename = downcase (filename);
+#endif
+
+#ifdef __EMX__
+ if (filename != 0)
+ _fnlwr (filename); /* lower case for FAT drives */
+#endif
+ if (filename != 0)
+ {
+ struct dirfile dirfile_key;
+
+ if (*filename == '\0')
+ {
+ /* Checking if the directory exists. */
+ return 1;
+ }
+ dirfile_key.name = filename;
+ dirfile_key.length = strlen (filename);
+ df = hash_find_item (&dir->dirfiles, &dirfile_key);
+ if (df)
+ return !df->impossible;
+ }
+
+ /* The file was not found in the hashed list.
+ Try to read the directory further. */
+
+ if (dir->dirstream == 0)
+ {
+#ifdef WINDOWS32
+ /*
+ * Check to see if directory has changed since last read. FAT
+ * filesystems force a rehash always as mtime does not change
+ * on directories (ugh!).
+ */
+ if (dir->path_key)
+ {
+ if ((dir->fs_flags & FS_FAT) != 0)
+ {
+ dir->mtime = time ((time_t *) 0);
+ rehash = 1;
+ }
+ else if (stat (dir->path_key, &st) == 0 && st.st_mtime > dir->mtime)
+ {
+ /* reset date stamp to show most recent re-process. */
+ dir->mtime = st.st_mtime;
+ rehash = 1;
+ }
+
+ /* If it has been already read in, all done. */
+ if (!rehash)
+ return 0;
+
+ /* make sure directory can still be opened; if not return. */
+ dir->dirstream = opendir (dir->path_key);
+ if (!dir->dirstream)
+ return 0;
+ }
+ else
+#endif
+ /* The directory has been all read in. */
+ return 0;
+ }
+
+ while (1)
+ {
+ /* Enter the file in the hash table. */
+ unsigned int len;
+ struct dirfile dirfile_key;
+ struct dirfile **dirfile_slot;
+
+ ENULLLOOP (d, readdir (dir->dirstream));
+ if (d == 0)
+ {
+ if (errno)
+ pfatal_with_name ("INTERNAL: readdir");
+ break;
+ }
+
+#if defined(VMS) && defined(HAVE_DIRENT_H)
+ /* In VMS we get file versions too, which have to be stripped off.
+ Some versions of VMS return versions on Unix files even when
+ the feature option to strip them is set. */
+ {
+ char *p = strrchr (d->d_name, ';');
+ if (p)
+ *p = '\0';
+ }
+#endif
+ if (!REAL_DIR_ENTRY (d))
+ continue;
+
+ len = NAMLEN (d);
+ dirfile_key.name = d->d_name;
+ dirfile_key.length = len;
+ dirfile_slot = (struct dirfile **) hash_find_slot (&dir->dirfiles, &dirfile_key);
+#ifdef WINDOWS32
+ /*
+ * If re-reading a directory, don't cache files that have
+ * already been discovered.
+ */
+ if (! rehash || HASH_VACANT (*dirfile_slot))
+#endif
+ {
+ df = xmalloc (sizeof (struct dirfile));
+#if defined(HAVE_CASE_INSENSITIVE_FS) && defined(VMS)
+ /* TODO: Why is this only needed on VMS? */
+ df->name = strcache_add_len (downcase_inplace (d->d_name), len);
+#else
+ df->name = strcache_add_len (d->d_name, len);
+#endif
+ df->length = len;
+ df->impossible = 0;
+ hash_insert_at (&dir->dirfiles, df, dirfile_slot);
+ }
+ /* Check if the name matches the one we're searching for. */
+ if (filename != 0 && patheq (d->d_name, filename))
+ return 1;
+ }
+
+ /* If the directory has been completely read in,
+ close the stream and reset the pointer to nil. */
+ if (d == 0)
+ {
+ --open_directories;
+ closedir (dir->dirstream);
+ dir->dirstream = 0;
+ }
+ return 0;
+}
+
+/* Return 1 if the name FILENAME in directory DIRNAME
+ is entered in the dir hash table.
+ FILENAME must contain no slashes. */
+
+int
+dir_file_exists_p (const char *dirname, const char *filename)
+{
+#ifdef VMS
+ if ((filename != NULL) && (dirname != NULL))
+ {
+ int want_vmsify;
+ want_vmsify = (strpbrk (dirname, ":<[") != NULL);
+ if (want_vmsify)
+ filename = vmsify (filename, 0);
+ }
+#endif
+ return dir_contents_file_exists_p (find_directory (dirname)->contents,
+ filename);
+}
+
+/* Return 1 if the file named NAME exists. */
+
+int
+file_exists_p (const char *name)
+{
+ const char *dirend;
+ const char *dirname;
+ const char *slash;
+
+#ifndef NO_ARCHIVES
+ if (ar_name (name))
+ return ar_member_date (name) != (time_t) -1;
+#endif
+
+ dirend = strrchr (name, '/');
+#ifdef VMS
+ if (dirend == 0)
+ {
+ dirend = strrchr (name, ']');
+ dirend == NULL ? dirend : dirend++;
+ }
+ if (dirend == 0)
+ {
+ dirend = strrchr (name, '>');
+ dirend == NULL ? dirend : dirend++;
+ }
+ if (dirend == 0)
+ {
+ dirend = strrchr (name, ':');
+ dirend == NULL ? dirend : dirend++;
+ }
+#endif /* VMS */
+#ifdef HAVE_DOS_PATHS
+ /* Forward and backslashes might be mixed. We need the rightmost one. */
+ {
+ const char *bslash = strrchr (name, '\\');
+ if (!dirend || bslash > dirend)
+ dirend = bslash;
+ /* The case of "d:file". */
+ if (!dirend && name[0] && name[1] == ':')
+ dirend = name + 1;
+ }
+#endif /* HAVE_DOS_PATHS */
+ if (dirend == 0)
+#ifndef _AMIGA
+ return dir_file_exists_p (".", name);
+#else /* !AMIGA */
+ return dir_file_exists_p ("", name);
+#endif /* AMIGA */
+
+ slash = dirend;
+ if (dirend == name)
+ dirname = "/";
+ else
+ {
+ char *p;
+#ifdef HAVE_DOS_PATHS
+ /* d:/ and d: are *very* different... */
+ if (dirend < name + 3 && name[1] == ':' &&
+ (*dirend == '/' || *dirend == '\\' || *dirend == ':'))
+ dirend++;
+#endif
+ p = alloca (dirend - name + 1);
+ memcpy (p, name, dirend - name);
+ p[dirend - name] = '\0';
+ dirname = p;
+ }
+#ifdef VMS
+ if (*slash == '/')
+ slash++;
+#else
+ slash++;
+#endif
+ return dir_file_exists_p (dirname, slash);
+}
+
+/* Mark FILENAME as 'impossible' for 'file_impossible_p'.
+ This means an attempt has been made to search for FILENAME
+ as an intermediate file, and it has failed. */
+
+void
+file_impossible (const char *filename)
+{
+ const char *dirend;
+ const char *p = filename;
+ struct directory *dir;
+ struct dirfile *new;
+
+ dirend = strrchr (p, '/');
+#ifdef VMS
+ if (dirend == NULL)
+ {
+ dirend = strrchr (p, ']');
+ dirend == NULL ? dirend : dirend++;
+ }
+ if (dirend == NULL)
+ {
+ dirend = strrchr (p, '>');
+ dirend == NULL ? dirend : dirend++;
+ }
+ if (dirend == NULL)
+ {
+ dirend = strrchr (p, ':');
+ dirend == NULL ? dirend : dirend++;
+ }
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* Forward and backslashes might be mixed. We need the rightmost one. */
+ {
+ const char *bslash = strrchr (p, '\\');
+ if (!dirend || bslash > dirend)
+ dirend = bslash;
+ /* The case of "d:file". */
+ if (!dirend && p[0] && p[1] == ':')
+ dirend = p + 1;
+ }
+#endif /* HAVE_DOS_PATHS */
+ if (dirend == 0)
+#ifdef _AMIGA
+ dir = find_directory ("");
+#else /* !AMIGA */
+ dir = find_directory (".");
+#endif /* AMIGA */
+ else
+ {
+ const char *dirname;
+ const char *slash = dirend;
+ if (dirend == p)
+ dirname = "/";
+ else
+ {
+ char *cp;
+#ifdef HAVE_DOS_PATHS
+ /* d:/ and d: are *very* different... */
+ if (dirend < p + 3 && p[1] == ':' &&
+ (*dirend == '/' || *dirend == '\\' || *dirend == ':'))
+ dirend++;
+#endif
+ cp = alloca (dirend - p + 1);
+ memcpy (cp, p, dirend - p);
+ cp[dirend - p] = '\0';
+ dirname = cp;
+ }
+ dir = find_directory (dirname);
+#ifdef VMS
+ if (*slash == '/')
+ filename = p = slash + 1;
+ else
+ filename = p = slash;
+#else
+ filename = p = slash + 1;
+#endif
+ }
+
+ if (dir->contents == 0)
+ /* The directory could not be stat'd. We allocate a contents
+ structure for it, but leave it out of the contents hash table. */
+ dir->contents = xcalloc (sizeof (struct directory_contents));
+
+ if (dir->contents->dirfiles.ht_vec == 0)
+ {
+ hash_init (&dir->contents->dirfiles, DIRFILE_BUCKETS,
+ dirfile_hash_1, dirfile_hash_2, dirfile_hash_cmp);
+ }
+
+ /* Make a new entry and put it in the table. */
+
+ new = xmalloc (sizeof (struct dirfile));
+ new->length = strlen (filename);
+#if defined(HAVE_CASE_INSENSITIVE_FS) && defined(VMS)
+ /* todo: Why is this only needed on VMS? */
+ new->name = strcache_add_len (downcase (filename), new->length);
+#else
+ new->name = strcache_add_len (filename, new->length);
+#endif
+ new->impossible = 1;
+ hash_insert (&dir->contents->dirfiles, new);
+}
+
+/* Return nonzero if FILENAME has been marked impossible. */
+
+int
+file_impossible_p (const char *filename)
+{
+ const char *dirend;
+ struct directory_contents *dir;
+ struct dirfile *dirfile;
+ struct dirfile dirfile_key;
+#ifdef VMS
+ int want_vmsify = 0;
+#endif
+
+ dirend = strrchr (filename, '/');
+#ifdef VMS
+ if (dirend == NULL)
+ {
+ want_vmsify = (strpbrk (filename, "]>:^") != NULL);
+ dirend = strrchr (filename, ']');
+ }
+ if (dirend == NULL && want_vmsify)
+ dirend = strrchr (filename, '>');
+ if (dirend == NULL && want_vmsify)
+ dirend = strrchr (filename, ':');
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* Forward and backslashes might be mixed. We need the rightmost one. */
+ {
+ const char *bslash = strrchr (filename, '\\');
+ if (!dirend || bslash > dirend)
+ dirend = bslash;
+ /* The case of "d:file". */
+ if (!dirend && filename[0] && filename[1] == ':')
+ dirend = filename + 1;
+ }
+#endif /* HAVE_DOS_PATHS */
+ if (dirend == 0)
+#ifdef _AMIGA
+ dir = find_directory ("")->contents;
+#else /* !AMIGA */
+ dir = find_directory (".")->contents;
+#endif /* AMIGA */
+ else
+ {
+ const char *dirname;
+ const char *slash = dirend;
+ if (dirend == filename)
+ dirname = "/";
+ else
+ {
+ char *cp;
+#ifdef HAVE_DOS_PATHS
+ /* d:/ and d: are *very* different... */
+ if (dirend < filename + 3 && filename[1] == ':' &&
+ (*dirend == '/' || *dirend == '\\' || *dirend == ':'))
+ dirend++;
+#endif
+ cp = alloca (dirend - filename + 1);
+ memcpy (cp, filename, dirend - filename);
+ cp[dirend - filename] = '\0';
+ dirname = cp;
+ }
+ dir = find_directory (dirname)->contents;
+#ifdef VMS
+ if (*slash == '/')
+ filename = slash + 1;
+ else
+ filename = slash;
+#else
+ filename = slash + 1;
+#endif
+ }
+
+ if (dir == 0 || dir->dirfiles.ht_vec == 0)
+ /* There are no files entered for this directory. */
+ return 0;
+
+#ifdef __MSDOS__
+ filename = dosify (filename);
+#endif
+#ifdef HAVE_CASE_INSENSITIVE_FS
+ filename = downcase (filename);
+#endif
+#ifdef VMS
+ if (want_vmsify)
+ filename = vmsify (filename, 1);
+#endif
+
+ dirfile_key.name = filename;
+ dirfile_key.length = strlen (filename);
+ dirfile = hash_find_item (&dir->dirfiles, &dirfile_key);
+ if (dirfile)
+ return dirfile->impossible;
+
+ return 0;
+}
+
+/* Return the already allocated name in the
+ directory hash table that matches DIR. */
+
+const char *
+dir_name (const char *dir)
+{
+ return find_directory (dir)->name;
+}
+
+/* Print the data base of directories. */
+
+void
+print_dir_data_base (void)
+{
+ unsigned int files;
+ unsigned int impossible;
+ struct directory **dir_slot;
+ struct directory **dir_end;
+
+ puts (_("\n# Directories\n"));
+
+ files = impossible = 0;
+
+ dir_slot = (struct directory **) directories.ht_vec;
+ dir_end = dir_slot + directories.ht_size;
+ for ( ; dir_slot < dir_end; dir_slot++)
+ {
+ struct directory *dir = *dir_slot;
+ if (! HASH_VACANT (dir))
+ {
+ if (dir->contents == 0)
+ printf (_("# %s: could not be stat'd.\n"), dir->name);
+ else if (dir->contents->dirfiles.ht_vec == 0)
+ {
+#ifdef WINDOWS32
+ printf (_("# %s (key %s, mtime %I64u): could not be opened.\n"),
+ dir->name, dir->contents->path_key,
+ (unsigned long long)dir->contents->mtime);
+#else /* WINDOWS32 */
+#ifdef VMS_INO_T
+ printf (_("# %s (device %d, inode [%d,%d,%d]): could not be opened.\n"),
+ dir->name, dir->contents->dev,
+ dir->contents->ino[0], dir->contents->ino[1],
+ dir->contents->ino[2]);
+#else
+ printf (_("# %s (device %ld, inode %ld): could not be opened.\n"),
+ dir->name, (long int) dir->contents->dev,
+ (long int) dir->contents->ino);
+#endif
+#endif /* WINDOWS32 */
+ }
+ else
+ {
+ unsigned int f = 0;
+ unsigned int im = 0;
+ struct dirfile **files_slot;
+ struct dirfile **files_end;
+
+ files_slot = (struct dirfile **) dir->contents->dirfiles.ht_vec;
+ files_end = files_slot + dir->contents->dirfiles.ht_size;
+ for ( ; files_slot < files_end; files_slot++)
+ {
+ struct dirfile *df = *files_slot;
+ if (! HASH_VACANT (df))
+ {
+ if (df->impossible)
+ ++im;
+ else
+ ++f;
+ }
+ }
+#ifdef WINDOWS32
+ printf (_("# %s (key %s, mtime %I64u): "),
+ dir->name, dir->contents->path_key,
+ (unsigned long long)dir->contents->mtime);
+#else /* WINDOWS32 */
+#ifdef VMS_INO_T
+ printf (_("# %s (device %d, inode [%d,%d,%d]): "),
+ dir->name, dir->contents->dev,
+ dir->contents->ino[0], dir->contents->ino[1],
+ dir->contents->ino[2]);
+#else
+ printf (_("# %s (device %ld, inode %ld): "),
+ dir->name,
+ (long)dir->contents->dev, (long)dir->contents->ino);
+#endif
+#endif /* WINDOWS32 */
+ if (f == 0)
+ fputs (_("No"), stdout);
+ else
+ printf ("%u", f);
+ fputs (_(" files, "), stdout);
+ if (im == 0)
+ fputs (_("no"), stdout);
+ else
+ printf ("%u", im);
+ fputs (_(" impossibilities"), stdout);
+ if (dir->contents->dirstream == 0)
+ puts (".");
+ else
+ puts (_(" so far."));
+ files += f;
+ impossible += im;
+ }
+ }
+ }
+
+ fputs ("\n# ", stdout);
+ if (files == 0)
+ fputs (_("No"), stdout);
+ else
+ printf ("%u", files);
+ fputs (_(" files, "), stdout);
+ if (impossible == 0)
+ fputs (_("no"), stdout);
+ else
+ printf ("%u", impossible);
+ printf (_(" impossibilities in %lu directories.\n"), directories.ht_fill);
+}
+
+/* Hooks for globbing. */
+
+/* Structure describing state of iterating through a directory hash table. */
+
+struct dirstream
+ {
+ struct directory_contents *contents; /* The directory being read. */
+ struct dirfile **dirfile_slot; /* Current slot in table. */
+ };
+
+/* Forward declarations. */
+static __ptr_t open_dirstream (const char *);
+static struct dirent *read_dirstream (__ptr_t);
+
+static __ptr_t
+open_dirstream (const char *directory)
+{
+ struct dirstream *new;
+ struct directory *dir = find_directory (directory);
+
+ if (dir->contents == 0 || dir->contents->dirfiles.ht_vec == 0)
+ /* DIR->contents is nil if the directory could not be stat'd.
+ DIR->contents->dirfiles is nil if it could not be opened. */
+ return 0;
+
+ /* Read all the contents of the directory now. There is no benefit
+ in being lazy, since glob will want to see every file anyway. */
+
+ dir_contents_file_exists_p (dir->contents, 0);
+
+ new = xmalloc (sizeof (struct dirstream));
+ new->contents = dir->contents;
+ new->dirfile_slot = (struct dirfile **) new->contents->dirfiles.ht_vec;
+
+ return (__ptr_t) new;
+}
+
+static struct dirent *
+read_dirstream (__ptr_t stream)
+{
+ static char *buf;
+ static unsigned int bufsz;
+
+ struct dirstream *const ds = (struct dirstream *) stream;
+ struct directory_contents *dc = ds->contents;
+ struct dirfile **dirfile_end = (struct dirfile **) dc->dirfiles.ht_vec + dc->dirfiles.ht_size;
+
+ while (ds->dirfile_slot < dirfile_end)
+ {
+ struct dirfile *df = *ds->dirfile_slot++;
+ if (! HASH_VACANT (df) && !df->impossible)
+ {
+ /* The glob interface wants a 'struct dirent', so mock one up. */
+ struct dirent *d;
+ unsigned int len = df->length + 1;
+ unsigned int sz = sizeof (*d) - sizeof (d->d_name) + len;
+ if (sz > bufsz)
+ {
+ bufsz *= 2;
+ if (sz > bufsz)
+ bufsz = sz;
+ buf = xrealloc (buf, bufsz);
+ }
+ d = (struct dirent *) buf;
+#ifdef __MINGW32__
+# if __MINGW32_MAJOR_VERSION < 3 || (__MINGW32_MAJOR_VERSION == 3 && \
+ __MINGW32_MINOR_VERSION == 0)
+ d->d_name = xmalloc (len);
+# endif
+#endif
+ FAKE_DIR_ENTRY (d);
+#ifdef _DIRENT_HAVE_D_NAMLEN
+ d->d_namlen = len - 1;
+#endif
+#ifdef _DIRENT_HAVE_D_TYPE
+ d->d_type = DT_UNKNOWN;
+#endif
+ memcpy (d->d_name, df->name, len);
+ return d;
+ }
+ }
+
+ return 0;
+}
+
+/* On 64 bit ReliantUNIX (5.44 and above) in LFS mode, stat() is actually a
+ * macro for stat64(). If stat is a macro, make a local wrapper function to
+ * invoke it.
+ *
+ * On MS-Windows, stat() "succeeds" for foo/bar/. where foo/bar is a
+ * regular file; fix that here.
+ */
+#if !defined(stat) && !defined(WINDOWS32) || defined(VMS)
+# ifndef VMS
+# ifndef HAVE_SYS_STAT_H
+int stat (const char *path, struct stat *sbuf);
+# endif
+# else
+ /* We are done with the fake stat. Go back to the real stat */
+# ifdef stat
+# undef stat
+# endif
+# endif
+# define local_stat stat
+#else
+static int
+local_stat (const char *path, struct stat *buf)
+{
+ int e;
+#ifdef WINDOWS32
+ size_t plen = strlen (path);
+
+ /* Make sure the parent of "." exists and is a directory, not a
+ file. This is because 'stat' on Windows normalizes the argument
+ foo/. => foo without checking first that foo is a directory. */
+ if (plen > 1 && path[plen - 1] == '.'
+ && (path[plen - 2] == '/' || path[plen - 2] == '\\'))
+ {
+ char parent[MAXPATHLEN];
+
+ strncpy (parent, path, plen - 2);
+ parent[plen - 2] = '\0';
+ if (stat (parent, buf) < 0 || !_S_ISDIR (buf->st_mode))
+ return -1;
+ }
+#endif
+
+ EINTRLOOP (e, stat (path, buf));
+ return e;
+}
+#endif
+
+void
+dir_setup_glob (glob_t *gl)
+{
+ gl->gl_opendir = open_dirstream;
+ gl->gl_readdir = read_dirstream;
+ gl->gl_closedir = free;
+ gl->gl_stat = local_stat;
+ /* We don't bother setting gl_lstat, since glob never calls it.
+ The slot is only there for compatibility with 4.4 BSD. */
+}
+
+void
+hash_init_directories (void)
+{
+ hash_init (&directories, DIRECTORY_BUCKETS,
+ directory_hash_1, directory_hash_2, directory_hash_cmp);
+ hash_init (&directory_contents, DIRECTORY_BUCKETS,
+ directory_contents_hash_1, directory_contents_hash_2,
+ directory_contents_hash_cmp);
+}
diff --git a/doc/.gitignore b/doc/.gitignore
new file mode 100644
index 0000000..ca68d2d
--- /dev/null
+++ b/doc/.gitignore
@@ -0,0 +1,22 @@
+manual/
+gendocs_template
+fdl.texi
+make-stds.texi
+stamp-vti
+version.texi
+make.info*
+make*.html
+make.aux
+make.cp
+make.cps
+make.dvi
+make.fn
+make.fns
+make.ky
+make.log
+make.pdf
+make.pg
+make.ps
+make.toc
+make.tp
+make.vr
diff --git a/doc/Makefile.am b/doc/Makefile.am
new file mode 100644
index 0000000..11aa4d4
--- /dev/null
+++ b/doc/Makefile.am
@@ -0,0 +1,24 @@
+# -*-Makefile-*-, or close enough
+# Copyright (C) 2000-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+TEXI2HTML = texi2html
+TEXI2HTML_FLAGS = -split_chapter
+
+info_TEXINFOS = make.texi
+make_TEXINFOS = fdl.texi make-stds.texi
+
+CLEANFILES = make*.html
diff --git a/doc/make.texi b/doc/make.texi
new file mode 100644
index 0000000..01bcec7
--- /dev/null
+++ b/doc/make.texi
@@ -0,0 +1,12801 @@
+\input texinfo @c -*- Texinfo -*-
+@c %**start of header
+@setfilename make.info
+
+@include version.texi
+@set EDITION 0.74
+
+@settitle GNU @code{make}
+@setchapternewpage odd
+@c Combine the variable and function indices:
+@syncodeindex vr fn
+@c Combine the program and concept indices:
+@syncodeindex pg cp
+@c FSF publishers: format makebook.texi instead of using this file directly.
+@c ISBN confirmed by Jasimin Huang <jasimin@fsf.org> on 25 Mar 2009
+@set ISBN 1-882114-83-3
+@c %**end of header
+
+@copying
+This file documents the GNU @code{make} utility, which determines
+automatically which pieces of a large program need to be recompiled,
+and issues the commands to recompile them.
+
+This is Edition @value{EDITION}, last updated @value{UPDATED},
+of @cite{The GNU Make Manual}, for GNU @code{make} version @value{VERSION}.
+
+Copyright @copyright{} 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007,
+2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software
+Foundation, Inc.
+
+@quotation
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3 or
+any later version published by the Free Software Foundation; with no
+Invariant Sections, with the Front-Cover Texts being ``A GNU Manual,''
+and with the Back-Cover Texts as in (a) below. A copy of the
+license is included in the section entitled ``GNU Free Documentation
+License.''
+
+(a) The FSF's Back-Cover Text is: ``You have the freedom to copy and
+modify this GNU manual. Buying copies from the FSF supports it in
+developing GNU and promoting software freedom.''
+@end quotation
+@end copying
+
+@c finalout
+
+@c ISPELL CHECK: done, 10 June 1993 --roland
+@c ISPELL CHECK: done, 2000-06-25 --Martin Buchholz
+
+
+@dircategory Software development
+@direntry
+* Make: (make). Remake files automatically.
+@end direntry
+
+@iftex
+@shorttitlepage GNU Make
+@end iftex
+@titlepage
+@title GNU Make
+@subtitle A Program for Directing Recompilation
+@subtitle GNU @code{make} Version @value{VERSION}
+@subtitle @value{UPDATED-MONTH}
+@author Richard M. Stallman, Roland McGrath, Paul D. Smith
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+@sp 2
+Published by the Free Software Foundation @*
+51 Franklin St. -- Fifth Floor @*
+Boston, MA 02110-1301 USA @*
+ISBN @value{ISBN} @*
+@sp 2
+Cover art by Etienne Suvasa.
+@end titlepage
+
+@summarycontents
+@contents
+
+@ifnottex
+@node Top, Overview, (dir), (dir)
+@top GNU @code{make}
+
+@insertcopying
+@end ifnottex
+
+@menu
+* Overview:: Overview of @code{make}.
+* Introduction:: An introduction to @code{make}.
+* Makefiles:: Makefiles tell @code{make} what to do.
+* Rules:: Rules describe when a file must be remade.
+* Recipes:: Recipes say how to remake a file.
+* Using Variables:: You can use variables to avoid repetition.
+* Conditionals:: Use or ignore parts of the makefile based
+ on the values of variables.
+* Functions:: Many powerful ways to manipulate text.
+* Invoking make: Running. How to invoke @code{make} on the command line.
+* Implicit Rules:: Use implicit rules to treat many files alike,
+ based on their file names.
+* Archives:: How @code{make} can update library archives.
+* Extending make:: Using extensions to @code{make}.
+* Integrating make:: Integrating @code{make} with other tools.
+* Features:: Features GNU @code{make} has over other @code{make}s.
+* Missing:: What GNU @code{make} lacks from other @code{make}s.
+* Makefile Conventions:: Conventions for writing makefiles for
+ GNU programs.
+* Quick Reference:: A quick reference for experienced users.
+* Error Messages:: A list of common errors generated by @code{make}.
+* Complex Makefile:: A real example of a straightforward,
+ but nontrivial, makefile.
+
+* GNU Free Documentation License:: License for copying this manual.
+* Concept Index:: Index of Concepts.
+* Name Index:: Index of Functions, Variables, & Directives.
+
+@detailmenu
+ --- The Detailed Node Listing ---
+
+Overview of @code{make}
+
+* Preparing:: Preparing and running @code{make}.
+* Reading:: On reading this text.
+* Bugs:: Problems and bugs.
+
+An Introduction to Makefiles
+
+* Rule Introduction:: What a rule looks like.
+* Simple Makefile:: A simple makefile.
+* How Make Works:: How @code{make} processes this makefile.
+* Variables Simplify:: Variables make makefiles simpler.
+* make Deduces:: Letting @code{make} deduce the recipes.
+* Combine By Prerequisite:: Another style of makefile.
+* Cleanup:: Rules for cleaning the directory.
+
+Writing Makefiles
+
+* Makefile Contents:: What makefiles contain.
+* Makefile Names:: How to name your makefile.
+* Include:: How one makefile can use another makefile.
+* MAKEFILES Variable:: The environment can specify extra makefiles.
+* Remaking Makefiles:: How makefiles get remade.
+* Overriding Makefiles:: How to override part of one makefile
+ with another makefile.
+* Reading Makefiles:: How makefiles are parsed.
+* Secondary Expansion:: How and when secondary expansion is performed.
+
+What Makefiles Contain
+
+* Splitting Lines:: Splitting long lines in makefiles
+
+Writing Rules
+
+* Rule Example:: An example explained.
+* Rule Syntax:: General syntax explained.
+* Prerequisite Types:: There are two types of prerequisites.
+* Wildcards:: Using wildcard characters such as `*'.
+* Directory Search:: Searching other directories for source files.
+* Phony Targets:: Using a target that is not a real file's name.
+* Force Targets:: You can use a target without a recipe
+ or prerequisites to mark other targets
+ as phony.
+* Empty Targets:: When only the date matters and the
+ files are empty.
+* Special Targets:: Targets with special built-in meanings.
+* Multiple Targets:: When to make use of several targets in a rule.
+* Multiple Rules:: How to use several rules with the same target.
+* Static Pattern:: Static pattern rules apply to multiple targets
+ and can vary the prerequisites according to
+ the target name.
+* Double-Colon:: How to use a special kind of rule to allow
+ several independent rules for one target.
+* Automatic Prerequisites:: How to automatically generate rules giving
+ prerequisites from source files themselves.
+
+Using Wildcard Characters in File Names
+
+* Wildcard Examples:: Several examples.
+* Wildcard Pitfall:: Problems to avoid.
+* Wildcard Function:: How to cause wildcard expansion where
+ it does not normally take place.
+
+Searching Directories for Prerequisites
+
+* General Search:: Specifying a search path that applies
+ to every prerequisite.
+* Selective Search:: Specifying a search path
+ for a specified class of names.
+* Search Algorithm:: When and how search paths are applied.
+* Recipes/Search:: How to write recipes that work together
+ with search paths.
+* Implicit/Search:: How search paths affect implicit rules.
+* Libraries/Search:: Directory search for link libraries.
+
+Static Pattern Rules
+
+* Static Usage:: The syntax of static pattern rules.
+* Static versus Implicit:: When are they better than implicit rules?
+
+Writing Recipes in Rules
+
+* Recipe Syntax:: Recipe syntax features and pitfalls.
+* Echoing:: How to control when recipes are echoed.
+* Execution:: How recipes are executed.
+* Parallel:: How recipes can be executed in parallel.
+* Errors:: What happens after a recipe execution error.
+* Interrupts:: What happens when a recipe is interrupted.
+* Recursion:: Invoking @code{make} from makefiles.
+* Canned Recipes:: Defining canned recipes.
+* Empty Recipes:: Defining useful, do-nothing recipes.
+
+Recipe Syntax
+
+* Splitting Recipe Lines:: Breaking long recipe lines for readability.
+* Variables in Recipes:: Using @code{make} variables in recipes.
+
+Recipe Execution
+
+* One Shell:: One shell for all lines in a recipe.
+* Choosing the Shell:: How @code{make} chooses the shell used
+ to run recipes.
+
+Parallel Execution
+
+* Parallel Output:: Handling output during parallel execution
+* Parallel Input:: Handling input during parallel execution
+
+Recursive Use of @code{make}
+
+* MAKE Variable:: The special effects of using @samp{$(MAKE)}.
+* Variables/Recursion:: How to communicate variables to a sub-@code{make}.
+* Options/Recursion:: How to communicate options to a sub-@code{make}.
+* -w Option:: How the @samp{-w} or @samp{--print-directory} option
+ helps debug use of recursive @code{make} commands.
+
+How to Use Variables
+
+* Reference:: How to use the value of a variable.
+* Flavors:: Variables come in two flavors.
+* Advanced:: Advanced features for referencing a variable.
+* Values:: All the ways variables get their values.
+* Setting:: How to set a variable in the makefile.
+* Appending:: How to append more text to the old value
+ of a variable.
+* Override Directive:: How to set a variable in the makefile even if
+ the user has set it with a command argument.
+* Multi-Line:: An alternate way to set a variable
+ to a multi-line string.
+* Undefine Directive:: How to undefine a variable so that it appears
+ as if it was never set.
+* Environment:: Variable values can come from the environment.
+* Target-specific:: Variable values can be defined on a per-target
+ basis.
+* Pattern-specific:: Target-specific variable values can be applied
+ to a group of targets that match a pattern.
+* Suppressing Inheritance:: Suppress inheritance of variables.
+* Special Variables:: Variables with special meaning or behavior.
+
+Advanced Features for Reference to Variables
+
+* Substitution Refs:: Referencing a variable with
+ substitutions on the value.
+* Computed Names:: Computing the name of the variable to refer to.
+
+Conditional Parts of Makefiles
+
+* Conditional Example:: Example of a conditional
+* Conditional Syntax:: The syntax of conditionals.
+* Testing Flags:: Conditionals that test flags.
+
+Functions for Transforming Text
+
+* Syntax of Functions:: How to write a function call.
+* Text Functions:: General-purpose text manipulation functions.
+* File Name Functions:: Functions for manipulating file names.
+* Conditional Functions:: Functions that implement conditions.
+* Foreach Function:: Repeat some text with controlled variation.
+* File Function:: Write text to a file.
+* Call Function:: Expand a user-defined function.
+* Value Function:: Return the un-expanded value of a variable.
+* Eval Function:: Evaluate the arguments as makefile syntax.
+* Origin Function:: Find where a variable got its value.
+* Flavor Function:: Find out the flavor of a variable.
+* Make Control Functions:: Functions that control how make runs.
+* Shell Function:: Substitute the output of a shell command.
+* Guile Function:: Use GNU Guile embedded scripting language.
+
+How to Run @code{make}
+
+* Makefile Arguments:: How to specify which makefile to use.
+* Goals:: How to use goal arguments to specify which
+ parts of the makefile to use.
+* Instead of Execution:: How to use mode flags to specify what
+ kind of thing to do with the recipes
+ in the makefile other than simply
+ execute them.
+* Avoiding Compilation:: How to avoid recompiling certain files.
+* Overriding:: How to override a variable to specify
+ an alternate compiler and other things.
+* Testing:: How to proceed past some errors, to
+ test compilation.
+* Options Summary:: Summary of Options
+
+Using Implicit Rules
+
+* Using Implicit:: How to use an existing implicit rule
+ to get the recipes for updating a file.
+* Catalogue of Rules:: A list of built-in rules.
+* Implicit Variables:: How to change what predefined rules do.
+* Chained Rules:: How to use a chain of implicit rules.
+* Pattern Rules:: How to define new implicit rules.
+* Last Resort:: How to define a recipe for rules which
+ cannot find any.
+* Suffix Rules:: The old-fashioned style of implicit rule.
+* Implicit Rule Search:: The precise algorithm for applying
+ implicit rules.
+
+Defining and Redefining Pattern Rules
+
+* Pattern Intro:: An introduction to pattern rules.
+* Pattern Examples:: Examples of pattern rules.
+* Automatic Variables:: How to use automatic variables in the
+ recipe of implicit rules.
+* Pattern Match:: How patterns match.
+* Match-Anything Rules:: Precautions you should take prior to
+ defining rules that can match any
+ target file whatever.
+* Canceling Rules:: How to override or cancel built-in rules.
+
+Using @code{make} to Update Archive Files
+
+* Archive Members:: Archive members as targets.
+* Archive Update:: The implicit rule for archive member targets.
+* Archive Pitfalls:: Dangers to watch out for when using archives.
+* Archive Suffix Rules:: You can write a special kind of suffix rule
+ for updating archives.
+
+Implicit Rule for Archive Member Targets
+
+* Archive Symbols:: How to update archive symbol directories.
+
+Extending GNU @code{make}
+
+* Guile Integration:: Using Guile as an embedded scripting language.
+* Loading Objects:: Loading dynamic objects as extensions.
+
+GNU Guile Integration
+
+* Guile Types:: Converting Guile types to @code{make} strings.
+* Guile Interface:: Invoking @code{make} functions from Guile.
+* Guile Example:: Example using Guile in @code{make}.
+
+Loading Dynamic Objects
+
+* load Directive:: Loading dynamic objects as extensions.
+* Remaking Loaded Objects:: How loaded objects get remade.
+* Loaded Object API:: Programmatic interface for loaded objects.
+* Loaded Object Example:: Example of a loaded object
+
+Integrating GNU @code{make}
+
+* Job Slots:: Share job slots with GNU @code{make}.
+* Terminal Output:: Control output to terminals.
+
+Sharing Job Slots with GNU @code{make}
+
+* POSIX Jobserver:: Using the jobserver on POSIX systems.
+* Windows Jobserver:: Using the jobserver on Windows systems.
+
+@end detailmenu
+@end menu
+
+@node Overview, Introduction, Top, Top
+@comment node-name, next, previous, up
+@chapter Overview of @code{make}
+
+The @code{make} utility automatically determines which pieces of a large
+program need to be recompiled, and issues commands to recompile them.
+This manual describes GNU @code{make}, which was implemented by Richard
+Stallman and Roland McGrath. Development since Version 3.76 has been
+handled by Paul D. Smith.
+
+GNU @code{make} conforms to section 6.2 of @cite{IEEE Standard
+1003.2-1992} (POSIX.2).
+@cindex POSIX
+@cindex IEEE Standard 1003.2
+@cindex standards conformance
+
+Our examples show C programs, since they are most common, but you can use
+@code{make} with any programming language whose compiler can be run with a
+shell command. Indeed, @code{make} is not limited to programs. You can
+use it to describe any task where some files must be updated automatically
+from others whenever the others change.
+
+@menu
+* Preparing:: Preparing and running @code{make}.
+* Reading:: On reading this text.
+* Bugs:: Problems and bugs.
+@end menu
+
+@node Preparing, Reading, Overview, Overview
+@ifnottex
+@heading Preparing and Running Make
+@end ifnottex
+
+To prepare to use @code{make}, you must write a file called
+the @dfn{makefile} that describes the relationships among files
+in your program and provides commands for updating each file.
+In a program, typically, the executable file is updated from object
+files, which are in turn made by compiling source files.@refill
+
+Once a suitable makefile exists, each time you change some source files,
+this simple shell command:
+
+@example
+make
+@end example
+
+@noindent
+suffices to perform all necessary recompilations. The @code{make} program
+uses the makefile data base and the last-modification times of the files to
+decide which of the files need to be updated. For each of those files, it
+issues the recipes recorded in the data base.
+
+You can provide command line arguments to @code{make} to control which
+files should be recompiled, or how. @xref{Running, ,How to Run
+@code{make}}.
+
+@node Reading, Bugs, Preparing, Overview
+@section How to Read This Manual
+
+If you are new to @code{make}, or are looking for a general
+introduction, read the first few sections of each chapter, skipping the
+later sections. In each chapter, the first few sections contain
+introductory or general information and the later sections contain
+specialized or technical information.
+@ifnottex
+The exception is the second chapter, @ref{Introduction, ,An
+Introduction to Makefiles}, all of which is introductory.
+@end ifnottex
+@iftex
+The exception is @ref{Introduction, ,An Introduction to Makefiles},
+all of which is introductory.
+@end iftex
+
+If you are familiar with other @code{make} programs, see @ref{Features,
+,Features of GNU @code{make}}, which lists the enhancements GNU
+@code{make} has, and @ref{Missing, ,Incompatibilities and Missing
+Features}, which explains the few things GNU @code{make} lacks that
+others have.
+
+For a quick summary, see @ref{Options Summary}, @ref{Quick Reference},
+and @ref{Special Targets}.
+
+@node Bugs, , Reading, Overview
+@section Problems and Bugs
+@cindex reporting bugs
+@cindex bugs, reporting
+@cindex problems and bugs, reporting
+
+If you have problems with GNU @code{make} or think you've found a bug,
+please report it to the developers; we cannot promise to do anything but
+we might well want to fix it.
+
+Before reporting a bug, make sure you've actually found a real bug.
+Carefully reread the documentation and see if it really says you can do
+what you're trying to do. If it's not clear whether you should be able
+to do something or not, report that too; it's a bug in the
+documentation!
+
+Before reporting a bug or trying to fix it yourself, try to isolate it
+to the smallest possible makefile that reproduces the problem. Then
+send us the makefile and the exact results @code{make} gave you,
+including any error or warning messages. Please don't paraphrase
+these messages: it's best to cut and paste them into your report.
+When generating this small makefile, be sure to not use any non-free
+or unusual tools in your recipes: you can almost always emulate what
+such a tool would do with simple shell commands. Finally, be sure to
+explain what you expected to occur; this will help us decide whether
+the problem was really in the documentation.
+
+Once you have a precise problem you can report it in one of two ways.
+Either send electronic mail to:
+
+@example
+ bug-make@@gnu.org
+@end example
+
+@noindent
+or use our Web-based project management tool, at:
+
+@example
+ http://savannah.gnu.org/projects/make/
+@end example
+
+@noindent
+In addition to the information above, please be careful to include the
+version number of @code{make} you are using. You can get this
+information with the command @samp{make --version}. Be sure also to
+include the type of machine and operating system you are using. One
+way to obtain this information is by looking at the final lines of
+output from the command @samp{make --help}.
+
+@node Introduction, Makefiles, Overview, Top
+@comment node-name, next, previous, up
+@chapter An Introduction to Makefiles
+
+You need a file called a @dfn{makefile} to tell @code{make} what to do.
+Most often, the makefile tells @code{make} how to compile and link a
+program.
+@cindex makefile
+
+In this chapter, we will discuss a simple makefile that describes how to
+compile and link a text editor which consists of eight C source files
+and three header files. The makefile can also tell @code{make} how to
+run miscellaneous commands when explicitly asked (for example, to remove
+certain files as a clean-up operation). To see a more complex example
+of a makefile, see @ref{Complex Makefile}.
+
+When @code{make} recompiles the editor, each changed C source file
+must be recompiled. If a header file has changed, each C source file
+that includes the header file must be recompiled to be safe. Each
+compilation produces an object file corresponding to the source file.
+Finally, if any source file has been recompiled, all the object files,
+whether newly made or saved from previous compilations, must be linked
+together to produce the new executable editor.
+@cindex recompilation
+@cindex editor
+
+@menu
+* Rule Introduction:: What a rule looks like.
+* Simple Makefile:: A simple makefile.
+* How Make Works:: How @code{make} processes this makefile.
+* Variables Simplify:: Variables make makefiles simpler.
+* make Deduces:: Letting @code{make} deduce the recipes.
+* Combine By Prerequisite:: Another style of makefile.
+* Cleanup:: Rules for cleaning the directory.
+@end menu
+
+@node Rule Introduction, Simple Makefile, Introduction, Introduction
+@comment node-name, next, previous, up
+@section What a Rule Looks Like
+@cindex rule, introduction to
+@cindex makefile rule parts
+@cindex parts of makefile rule
+
+A simple makefile consists of ``rules'' with the following shape:
+
+@cindex targets, introduction to
+@cindex prerequisites, introduction to
+@cindex recipes, introduction to
+@example
+@group
+@var{target} @dots{} : @var{prerequisites} @dots{}
+ @var{recipe}
+ @dots{}
+ @dots{}
+@end group
+@end example
+
+A @dfn{target} is usually the name of a file that is generated by a
+program; examples of targets are executable or object files. A target
+can also be the name of an action to carry out, such as @samp{clean}
+(@pxref{Phony Targets}).
+
+A @dfn{prerequisite} is a file that is used as input to create the
+target. A target often depends on several files.
+
+@cindex tabs in rules
+A @dfn{recipe} is an action that @code{make} carries out. A recipe
+may have more than one command, either on the same line or each on its
+own line. @strong{Please note:} you need to put a tab character at
+the beginning of every recipe line! This is an obscurity that catches
+the unwary. If you prefer to prefix your recipes with a character
+other than tab, you can set the @code{.RECIPEPREFIX} variable to an
+alternate character (@pxref{Special Variables}).
+
+Usually a recipe is in a rule with prerequisites and serves to create a
+target file if any of the prerequisites change. However, the rule that
+specifies a recipe for the target need not have prerequisites. For
+example, the rule containing the delete command associated with the
+target @samp{clean} does not have prerequisites.
+
+A @dfn{rule}, then, explains how and when to remake certain files
+which are the targets of the particular rule. @code{make} carries out
+the recipe on the prerequisites to create or update the target. A
+rule can also explain how and when to carry out an action.
+@xref{Rules, , Writing Rules}.
+
+A makefile may contain other text besides rules, but a simple makefile
+need only contain rules. Rules may look somewhat more complicated
+than shown in this template, but all fit the pattern more or less.
+
+@node Simple Makefile, How Make Works, Rule Introduction, Introduction
+@section A Simple Makefile
+@cindex simple makefile
+@cindex makefile, simple
+
+Here is a straightforward makefile that describes the way an
+executable file called @code{edit} depends on eight object files
+which, in turn, depend on eight C source and three header files.
+
+In this example, all the C files include @file{defs.h}, but only those
+defining editing commands include @file{command.h}, and only low
+level files that change the editor buffer include @file{buffer.h}.
+
+@example
+@group
+edit : main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+ cc -o edit main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+
+main.o : main.c defs.h
+ cc -c main.c
+kbd.o : kbd.c defs.h command.h
+ cc -c kbd.c
+command.o : command.c defs.h command.h
+ cc -c command.c
+display.o : display.c defs.h buffer.h
+ cc -c display.c
+insert.o : insert.c defs.h buffer.h
+ cc -c insert.c
+search.o : search.c defs.h buffer.h
+ cc -c search.c
+files.o : files.c defs.h buffer.h command.h
+ cc -c files.c
+utils.o : utils.c defs.h
+ cc -c utils.c
+clean :
+ rm edit main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+@end group
+@end example
+
+@noindent
+We split each long line into two lines using backslash/newline; this is
+like using one long line, but is easier to read. @xref{Splitting Lines,
+, Splitting Long Lines}.
+@cindex continuation lines
+@cindex @code{\} (backslash), for continuation lines
+@cindex backslash (@code{\}), for continuation lines
+@cindex quoting newline, in makefile
+@cindex newline, quoting, in makefile
+
+To use this makefile to create the executable file called @file{edit},
+type:
+
+@example
+make
+@end example
+
+To use this makefile to delete the executable file and all the object
+files from the directory, type:
+
+@example
+make clean
+@end example
+
+In the example makefile, the targets include the executable file
+@samp{edit}, and the object files @samp{main.o} and @samp{kbd.o}. The
+prerequisites are files such as @samp{main.c} and @samp{defs.h}.
+In fact, each @samp{.o} file is both a target and a prerequisite.
+Recipes include @w{@samp{cc -c main.c}} and @w{@samp{cc -c kbd.c}}.
+
+When a target is a file, it needs to be recompiled or relinked if any
+of its prerequisites change. In addition, any prerequisites that are
+themselves automatically generated should be updated first. In this
+example, @file{edit} depends on each of the eight object files; the
+object file @file{main.o} depends on the source file @file{main.c} and
+on the header file @file{defs.h}.
+
+A recipe may follow each line that contains a target and
+prerequisites. These recipes say how to update the target file. A
+tab character (or whatever character is specified by the
+@code{.RECIPEPREFIX} variable; @pxref{Special Variables}) must come at
+the beginning of every line in the recipe to distinguish recipes from
+other lines in the makefile. (Bear in mind that @code{make} does not
+know anything about how the recipes work. It is up to you to supply
+recipes that will update the target file properly. All @code{make}
+does is execute the recipe you have specified when the target file
+needs to be updated.)@refill
+@cindex recipe
+
+The target @samp{clean} is not a file, but merely the name of an
+action. Since you normally do not want to carry out the actions in
+this rule, @samp{clean} is not a prerequisite of any other rule.
+Consequently, @code{make} never does anything with it unless you tell
+it specifically. Note that this rule not only is not a prerequisite,
+it also does not have any prerequisites, so the only purpose of the
+rule is to run the specified recipe. Targets that do not refer to
+files but are just actions are called @dfn{phony targets}.
+@xref{Phony Targets}, for information about this kind of target.
+@xref{Errors, , Errors in Recipes}, to see how to cause @code{make}
+to ignore errors from @code{rm} or any other command.
+@cindex @code{clean} target
+@cindex @code{rm} (shell command)
+
+@node How Make Works, Variables Simplify, Simple Makefile, Introduction
+@comment node-name, next, previous, up
+@section How @code{make} Processes a Makefile
+@cindex processing a makefile
+@cindex makefile, how @code{make} processes
+
+By default, @code{make} starts with the first target (not targets whose
+names start with @samp{.}). This is called the @dfn{default goal}.
+(@dfn{Goals} are the targets that @code{make} strives ultimately to
+update. You can override this behavior using the command line
+(@pxref{Goals, , Arguments to Specify the Goals}) or with the
+@code{.DEFAULT_GOAL} special variable (@pxref{Special Variables, ,
+Other Special Variables}).
+@cindex default goal
+@cindex goal, default
+@cindex goal
+
+In the simple example of the previous section, the default goal is to
+update the executable program @file{edit}; therefore, we put that rule
+first.
+
+Thus, when you give the command:
+
+@example
+make
+@end example
+
+@noindent
+@code{make} reads the makefile in the current directory and begins by
+processing the first rule. In the example, this rule is for relinking
+@file{edit}; but before @code{make} can fully process this rule, it
+must process the rules for the files that @file{edit} depends on,
+which in this case are the object files. Each of these files is
+processed according to its own rule. These rules say to update each
+@samp{.o} file by compiling its source file. The recompilation must
+be done if the source file, or any of the header files named as
+prerequisites, is more recent than the object file, or if the object
+file does not exist.
+
+The other rules are processed because their targets appear as
+prerequisites of the goal. If some other rule is not depended on by the
+goal (or anything it depends on, etc.), that rule is not processed,
+unless you tell @code{make} to do so (with a command such as
+@w{@code{make clean}}).
+
+Before recompiling an object file, @code{make} considers updating its
+prerequisites, the source file and header files. This makefile does not
+specify anything to be done for them---the @samp{.c} and @samp{.h} files
+are not the targets of any rules---so @code{make} does nothing for these
+files. But @code{make} would update automatically generated C programs,
+such as those made by Bison or Yacc, by their own rules at this time.
+
+After recompiling whichever object files need it, @code{make} decides
+whether to relink @file{edit}. This must be done if the file
+@file{edit} does not exist, or if any of the object files are newer than
+it. If an object file was just recompiled, it is now newer than
+@file{edit}, so @file{edit} is relinked.
+@cindex relinking
+
+Thus, if we change the file @file{insert.c} and run @code{make},
+@code{make} will compile that file to update @file{insert.o}, and then
+link @file{edit}. If we change the file @file{command.h} and run
+@code{make}, @code{make} will recompile the object files @file{kbd.o},
+@file{command.o} and @file{files.o} and then link the file @file{edit}.
+
+@node Variables Simplify, make Deduces, How Make Works, Introduction
+@section Variables Make Makefiles Simpler
+@cindex variables
+@cindex simplifying with variables
+
+In our example, we had to list all the object files twice in the rule for
+@file{edit} (repeated here):
+
+@example
+@group
+edit : main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+ cc -o edit main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+@end group
+@end example
+
+@cindex @code{objects}
+Such duplication is error-prone; if a new object file is added to the
+system, we might add it to one list and forget the other. We can eliminate
+the risk and simplify the makefile by using a variable. @dfn{Variables}
+allow a text string to be defined once and substituted in multiple places
+later (@pxref{Using Variables, ,How to Use Variables}).
+
+@cindex @code{OBJECTS}
+@cindex @code{objs}
+@cindex @code{OBJS}
+@cindex @code{obj}
+@cindex @code{OBJ}
+It is standard practice for every makefile to have a variable named
+@code{objects}, @code{OBJECTS}, @code{objs}, @code{OBJS}, @code{obj},
+or @code{OBJ} which is a list of all object file names. We would
+define such a variable @code{objects} with a line like this in the
+makefile:@refill
+
+@example
+@group
+objects = main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+@end group
+@end example
+
+@noindent
+Then, each place we want to put a list of the object file names, we can
+substitute the variable's value by writing @samp{$(objects)}
+(@pxref{Using Variables, ,How to Use Variables}).
+
+Here is how the complete simple makefile looks when you use a variable
+for the object files:
+
+@example
+@group
+objects = main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+
+edit : $(objects)
+ cc -o edit $(objects)
+main.o : main.c defs.h
+ cc -c main.c
+kbd.o : kbd.c defs.h command.h
+ cc -c kbd.c
+command.o : command.c defs.h command.h
+ cc -c command.c
+display.o : display.c defs.h buffer.h
+ cc -c display.c
+insert.o : insert.c defs.h buffer.h
+ cc -c insert.c
+search.o : search.c defs.h buffer.h
+ cc -c search.c
+files.o : files.c defs.h buffer.h command.h
+ cc -c files.c
+utils.o : utils.c defs.h
+ cc -c utils.c
+clean :
+ rm edit $(objects)
+@end group
+@end example
+
+@node make Deduces, Combine By Prerequisite, Variables Simplify, Introduction
+@section Letting @code{make} Deduce the Recipes
+@cindex deducing recipes (implicit rules)
+@cindex implicit rule, introduction to
+@cindex rule, implicit, introduction to
+
+It is not necessary to spell out the recipes for compiling the individual
+C source files, because @code{make} can figure them out: it has an
+@dfn{implicit rule} for updating a @samp{.o} file from a correspondingly
+named @samp{.c} file using a @samp{cc -c} command. For example, it will
+use the recipe @samp{cc -c main.c -o main.o} to compile @file{main.c} into
+@file{main.o}. We can therefore omit the recipes from the rules for the
+object files. @xref{Implicit Rules, ,Using Implicit Rules}.@refill
+
+When a @samp{.c} file is used automatically in this way, it is also
+automatically added to the list of prerequisites. We can therefore omit
+the @samp{.c} files from the prerequisites, provided we omit the recipe.
+
+Here is the entire example, with both of these changes, and a variable
+@code{objects} as suggested above:
+
+@example
+@group
+objects = main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+
+edit : $(objects)
+ cc -o edit $(objects)
+
+main.o : defs.h
+kbd.o : defs.h command.h
+command.o : defs.h command.h
+display.o : defs.h buffer.h
+insert.o : defs.h buffer.h
+search.o : defs.h buffer.h
+files.o : defs.h buffer.h command.h
+utils.o : defs.h
+
+.PHONY : clean
+clean :
+ rm edit $(objects)
+@end group
+@end example
+
+@noindent
+This is how we would write the makefile in actual practice. (The
+complications associated with @samp{clean} are described elsewhere.
+See @ref{Phony Targets}, and @ref{Errors, ,Errors in Recipes}.)
+
+Because implicit rules are so convenient, they are important. You
+will see them used frequently.@refill
+
+@node Combine By Prerequisite, Cleanup, make Deduces, Introduction
+@section Another Style of Makefile
+@cindex combining rules by prerequisite
+
+When the objects of a makefile are created only by implicit rules, an
+alternative style of makefile is possible. In this style of makefile,
+you group entries by their prerequisites instead of by their targets.
+Here is what one looks like:
+
+@example
+@group
+objects = main.o kbd.o command.o display.o \
+ insert.o search.o files.o utils.o
+
+edit : $(objects)
+ cc -o edit $(objects)
+
+$(objects) : defs.h
+kbd.o command.o files.o : command.h
+display.o insert.o search.o files.o : buffer.h
+@end group
+@end example
+
+@noindent
+Here @file{defs.h} is given as a prerequisite of all the object files;
+@file{command.h} and @file{buffer.h} are prerequisites of the specific
+object files listed for them.
+
+Whether this is better is a matter of taste: it is more compact, but some
+people dislike it because they find it clearer to put all the information
+about each target in one place.
+
+@node Cleanup, , Combine By Prerequisite, Introduction
+@section Rules for Cleaning the Directory
+@cindex cleaning up
+@cindex removing, to clean up
+
+Compiling a program is not the only thing you might want to write rules
+for. Makefiles commonly tell how to do a few other things besides
+compiling a program: for example, how to delete all the object files
+and executables so that the directory is @samp{clean}.
+
+@cindex @code{clean} target
+Here is how we
+could write a @code{make} rule for cleaning our example editor:
+
+@example
+@group
+clean:
+ rm edit $(objects)
+@end group
+@end example
+
+In practice, we might want to write the rule in a somewhat more
+complicated manner to handle unanticipated situations. We would do this:
+
+@example
+@group
+.PHONY : clean
+clean :
+ -rm edit $(objects)
+@end group
+@end example
+
+@noindent
+This prevents @code{make} from getting confused by an actual file
+called @file{clean} and causes it to continue in spite of errors from
+@code{rm}. (See @ref{Phony Targets}, and @ref{Errors, ,Errors in
+Recipes}.)
+
+@noindent
+A rule such as this should not be placed at the beginning of the
+makefile, because we do not want it to run by default! Thus, in the
+example makefile, we want the rule for @code{edit}, which recompiles
+the editor, to remain the default goal.
+
+Since @code{clean} is not a prerequisite of @code{edit}, this rule will not
+run at all if we give the command @samp{make} with no arguments. In
+order to make the rule run, we have to type @samp{make clean}.
+@xref{Running, ,How to Run @code{make}}.
+
+@node Makefiles, Rules, Introduction, Top
+@chapter Writing Makefiles
+
+@cindex makefile, how to write
+The information that tells @code{make} how to recompile a system comes from
+reading a data base called the @dfn{makefile}.
+
+@menu
+* Makefile Contents:: What makefiles contain.
+* Makefile Names:: How to name your makefile.
+* Include:: How one makefile can use another makefile.
+* MAKEFILES Variable:: The environment can specify extra makefiles.
+* Remaking Makefiles:: How makefiles get remade.
+* Overriding Makefiles:: How to override part of one makefile
+ with another makefile.
+* Reading Makefiles:: How makefiles are parsed.
+* Secondary Expansion:: How and when secondary expansion is performed.
+@end menu
+
+@node Makefile Contents, Makefile Names, Makefiles, Makefiles
+@section What Makefiles Contain
+
+Makefiles contain five kinds of things: @dfn{explicit rules},
+@dfn{implicit rules}, @dfn{variable definitions}, @dfn{directives},
+and @dfn{comments}. Rules, variables, and directives are described at
+length in later chapters.@refill
+
+@itemize @bullet
+@cindex rule, explicit, definition of
+@cindex explicit rule, definition of
+@item
+An @dfn{explicit rule} says when and how to remake one or more files,
+called the rule's @dfn{targets}. It lists the other files that the
+targets depend on, called the @dfn{prerequisites} of the target, and
+may also give a recipe to use to create or update the targets.
+@xref{Rules, ,Writing Rules}.
+
+@cindex rule, implicit, definition of
+@cindex implicit rule, definition of
+@item
+An @dfn{implicit rule} says when and how to remake a class of files
+based on their names. It describes how a target may depend on a file
+with a name similar to the target and gives a recipe to create or
+update such a target. @xref{Implicit Rules, ,Using Implicit Rules}.
+
+@cindex variable definition
+@item
+A @dfn{variable definition} is a line that specifies a text string
+value for a variable that can be substituted into the text later. The
+simple makefile example shows a variable definition for @code{objects}
+as a list of all object files (@pxref{Variables Simplify, , Variables
+Make Makefiles Simpler}).
+
+@cindex directive
+@item
+A @dfn{directive} is an instruction for @code{make} to do something
+special while reading the makefile. These include:
+
+@itemize @bullet
+@item
+Reading another makefile (@pxref{Include, ,Including Other Makefiles}).
+
+@item
+Deciding (based on the values of variables) whether to use or
+ignore a part of the makefile (@pxref{Conditionals, ,Conditional Parts of Makefiles}).
+
+@item
+Defining a variable from a verbatim string containing multiple lines
+(@pxref{Multi-Line, ,Defining Multi-Line Variables}).
+@end itemize
+
+@cindex comments, in makefile
+@cindex @code{#} (comments), in makefile
+@item
+@samp{#} in a line of a makefile starts a @dfn{comment}. It and the
+rest of the line are ignored, except that a trailing backslash not
+escaped by another backslash will continue the comment across multiple
+lines. A line containing just a comment (with perhaps spaces before
+it) is effectively blank, and is ignored. If you want a literal
+@code{#}, escape it with a backslash (e.g., @code{\#}). Comments may
+appear on any line in the makefile, although they are treated
+specially in certain situations.
+
+You cannot use comments within variable references or function calls:
+any instance of @code{#} will be treated literally (rather than as the
+start of a comment) inside a variable reference or function call.
+
+Comments within a recipe are passed to the shell, just as with any
+other recipe text. The shell decides how to interpret it: whether or
+not this is a comment is up to the shell.
+
+Within a @code{define} directive, comments are not ignored during the
+definition of the variable, but rather kept intact in the value of the
+variable. When the variable is expanded they will either be treated
+as @code{make} comments or as recipe text, depending on the context in
+which the variable is evaluated.
+@end itemize
+
+@menu
+* Splitting Lines:: Splitting long lines in makefiles
+@end menu
+
+@node Splitting Lines, , Makefile Contents, Makefile Contents
+@subsection Splitting Long Lines
+@cindex splitting long lines
+@cindex long lines, splitting
+@cindex backslash (@code{\}), to quote newlines
+
+Makefiles use a ``line-based'' syntax in which the newline character
+is special and marks the end of a statement. GNU @code{make} has no
+limit on the length of a statement line, up to the amount of memory in
+your computer.
+
+However, it is difficult to read lines which are too long to display
+without wrapping or scrolling. So, you can format your makefiles for
+readability by adding newlines into the middle of a statement: you do
+this by escaping the internal newlines with a backslash (@code{\})
+character. Where we need to make a distinction we will refer to
+``physical lines'' as a single line ending with a newline (regardless
+of whether it is escaped) and a ``logical line'' being a complete
+statement including all escaped newlines up to the first non-escaped
+newline.
+
+The way in which backslash/newline combinations are handled depends on
+whether the statement is a recipe line or a non-recipe line. Handling
+of backslash/newline in a recipe line is discussed later
+(@pxref{Splitting Recipe Lines}).
+
+Outside of recipe lines, backslash/newlines are converted into a
+single space character. Once that is done, all whitespace around the
+backslash/newline is condensed into a single space: this includes all
+whitespace preceding the backslash, all whitespace at the beginning of
+the line after the backslash/newline, and any consecutive
+backslash/newline combinations.
+
+If the @code{.POSIX} special target is defined then backslash/newline
+handling is modified slightly to conform to POSIX.2: first, whitespace
+preceding a backslash is not removed and second, consecutive
+backslash/newlines are not condensed.
+
+@node Makefile Names, Include, Makefile Contents, Makefiles
+@section What Name to Give Your Makefile
+@cindex makefile name
+@cindex name of makefile
+@cindex default makefile name
+@cindex file name of makefile
+
+@c following paragraph rewritten to avoid overfull hbox
+By default, when @code{make} looks for the makefile, it tries the
+following names, in order: @file{GNUmakefile}, @file{makefile}
+and @file{Makefile}.@refill
+@findex Makefile
+@findex GNUmakefile
+@findex makefile
+
+@cindex @code{README}
+Normally you should call your makefile either @file{makefile} or
+@file{Makefile}. (We recommend @file{Makefile} because it appears
+prominently near the beginning of a directory listing, right near other
+important files such as @file{README}.) The first name checked,
+@file{GNUmakefile}, is not recommended for most makefiles. You should
+use this name if you have a makefile that is specific to GNU
+@code{make}, and will not be understood by other versions of
+@code{make}. Other @code{make} programs look for @file{makefile} and
+@file{Makefile}, but not @file{GNUmakefile}.
+
+If @code{make} finds none of these names, it does not use any makefile.
+Then you must specify a goal with a command argument, and @code{make}
+will attempt to figure out how to remake it using only its built-in
+implicit rules. @xref{Implicit Rules, ,Using Implicit Rules}.
+
+@cindex @code{-f}
+@cindex @code{--file}
+@cindex @code{--makefile}
+If you want to use a nonstandard name for your makefile, you can specify
+the makefile name with the @samp{-f} or @samp{--file} option. The
+arguments @w{@samp{-f @var{name}}} or @w{@samp{--file=@var{name}}} tell
+@code{make} to read the file @var{name} as the makefile. If you use
+more than one @samp{-f} or @samp{--file} option, you can specify several
+makefiles. All the makefiles are effectively concatenated in the order
+specified. The default makefile names @file{GNUmakefile},
+@file{makefile} and @file{Makefile} are not checked automatically if you
+specify @samp{-f} or @samp{--file}.@refill
+@cindex specifying makefile name
+@cindex makefile name, how to specify
+@cindex name of makefile, how to specify
+@cindex file name of makefile, how to specify
+
+@node Include, MAKEFILES Variable, Makefile Names, Makefiles
+@section Including Other Makefiles
+@cindex including other makefiles
+@cindex makefile, including
+
+@findex include
+The @code{include} directive tells @code{make} to suspend reading the
+current makefile and read one or more other makefiles before continuing.
+The directive is a line in the makefile that looks like this:
+
+@example
+include @var{filenames}@dots{}
+@end example
+
+@noindent
+@var{filenames} can contain shell file name patterns. If
+@var{filenames} is empty, nothing is included and no error is printed.
+@cindex shell file name pattern (in @code{include})
+@cindex shell wildcards (in @code{include})
+@cindex wildcard, in @code{include}
+
+Extra spaces are allowed and ignored at the beginning of the line, but
+the first character must not be a tab (or the value of
+@code{.RECIPEPREFIX})---if the line begins with a tab, it will be
+considered a recipe line. Whitespace is required between
+@code{include} and the file names, and between file names; extra
+whitespace is ignored there and at the end of the directive. A
+comment starting with @samp{#} is allowed at the end of the line. If
+the file names contain any variable or function references, they are
+expanded. @xref{Using Variables, ,How to Use Variables}.
+
+For example, if you have three @file{.mk} files, @file{a.mk},
+@file{b.mk}, and @file{c.mk}, and @code{$(bar)} expands to
+@code{bish bash}, then the following expression
+
+@example
+include foo *.mk $(bar)
+@end example
+
+is equivalent to
+
+@example
+include foo a.mk b.mk c.mk bish bash
+@end example
+
+When @code{make} processes an @code{include} directive, it suspends
+reading of the containing makefile and reads from each listed file in
+turn. When that is finished, @code{make} resumes reading the
+makefile in which the directive appears.
+
+One occasion for using @code{include} directives is when several programs,
+handled by individual makefiles in various directories, need to use a
+common set of variable definitions
+(@pxref{Setting, ,Setting Variables}) or pattern rules
+(@pxref{Pattern Rules, ,Defining and Redefining Pattern Rules}).
+
+Another such occasion is when you want to generate prerequisites from
+source files automatically; the prerequisites can be put in a file that
+is included by the main makefile. This practice is generally cleaner
+than that of somehow appending the prerequisites to the end of the main
+makefile as has been traditionally done with other versions of
+@code{make}. @xref{Automatic Prerequisites}.
+@cindex prerequisites, automatic generation
+@cindex automatic generation of prerequisites
+@cindex generating prerequisites automatically
+
+@cindex @code{-I}
+@cindex @code{--include-dir}
+@cindex included makefiles, default directories
+@cindex default directories for included makefiles
+@findex /usr/gnu/include
+@findex /usr/local/include
+@findex /usr/include
+If the specified name does not start with a slash, and the file is not
+found in the current directory, several other directories are searched.
+First, any directories you have specified with the @samp{-I} or
+@samp{--include-dir} option are searched
+(@pxref{Options Summary, ,Summary of Options}).
+Then the following directories (if they exist)
+are searched, in this order:
+@file{@var{prefix}/include} (normally @file{/usr/local/include}
+@footnote{GNU Make compiled for MS-DOS and MS-Windows behaves as if
+@var{prefix} has been defined to be the root of the DJGPP tree
+hierarchy.})
+@file{/usr/gnu/include},
+@file{/usr/local/include}, @file{/usr/include}.
+
+If an included makefile cannot be found in any of these directories, a
+warning message is generated, but it is not an immediately fatal error;
+processing of the makefile containing the @code{include} continues.
+Once it has finished reading makefiles, @code{make} will try to remake
+any that are out of date or don't exist.
+@xref{Remaking Makefiles, ,How Makefiles Are Remade}.
+Only after it has tried to find a way to remake a makefile and failed,
+will @code{make} diagnose the missing makefile as a fatal error.
+
+If you want @code{make} to simply ignore a makefile which does not exist
+or cannot be remade, with no error message, use the @w{@code{-include}}
+directive instead of @code{include}, like this:
+
+@example
+-include @var{filenames}@dots{}
+@end example
+
+This acts like @code{include} in every way except that there is no
+error (not even a warning) if any of the @var{filenames} (or any
+prerequisites of any of the @var{filenames}) do not exist or cannot be
+remade.
+
+For compatibility with some other @code{make} implementations,
+@code{sinclude} is another name for @w{@code{-include}}.
+
+@node MAKEFILES Variable, Remaking Makefiles, Include, Makefiles
+@section The Variable @code{MAKEFILES}
+@cindex makefile, and @code{MAKEFILES} variable
+@cindex including (@code{MAKEFILES} variable)
+
+@vindex MAKEFILES
+If the environment variable @code{MAKEFILES} is defined, @code{make}
+considers its value as a list of names (separated by whitespace) of
+additional makefiles to be read before the others. This works much
+like the @code{include} directive: various directories are searched
+for those files (@pxref{Include, ,Including Other Makefiles}). In
+addition, the default goal is never taken from one of these makefiles
+(or any makefile included by them) and it is not an error if the files
+listed in @code{MAKEFILES} are not found.@refill
+
+@cindex recursion, and @code{MAKEFILES} variable
+The main use of @code{MAKEFILES} is in communication between recursive
+invocations of @code{make} (@pxref{Recursion, ,Recursive Use of
+@code{make}}). It usually is not desirable to set the environment
+variable before a top-level invocation of @code{make}, because it is
+usually better not to mess with a makefile from outside. However, if
+you are running @code{make} without a specific makefile, a makefile in
+@code{MAKEFILES} can do useful things to help the built-in implicit
+rules work better, such as defining search paths (@pxref{Directory Search}).
+
+Some users are tempted to set @code{MAKEFILES} in the environment
+automatically on login, and program makefiles to expect this to be done.
+This is a very bad idea, because such makefiles will fail to work if run by
+anyone else. It is much better to write explicit @code{include} directives
+in the makefiles. @xref{Include, , Including Other Makefiles}.
+
+@node Remaking Makefiles, Overriding Makefiles, MAKEFILES Variable, Makefiles
+@section How Makefiles Are Remade
+@cindex updating makefiles
+@cindex remaking makefiles
+@cindex makefile, remaking of
+Sometimes makefiles can be remade from other files, such as RCS or SCCS
+files. If a makefile can be remade from other files, you probably want
+@code{make} to get an up-to-date version of the makefile to read in.
+
+To this end, after reading in all makefiles, @code{make} will consider
+each as a goal target and attempt to update it. If a makefile has a
+rule which says how to update it (found either in that very makefile or
+in another one) or if an implicit rule applies to it (@pxref{Implicit
+Rules, ,Using Implicit Rules}), it will be updated if necessary. After
+all makefiles have been checked, if any have actually been changed,
+@code{make} starts with a clean slate and reads all the makefiles over
+again. (It will also attempt to update each of them over again, but
+normally this will not change them again, since they are already up to
+date.)@refill
+
+If you know that one or more of your makefiles cannot be remade and
+you want to keep @code{make} from performing an implicit rule search
+on them, perhaps for efficiency reasons, you can use any normal method
+of preventing implicit rule look-up to do so. For example, you can
+write an explicit rule with the makefile as the target, and an empty
+recipe (@pxref{Empty Recipes, ,Using Empty Recipes}).
+
+If the makefiles specify a double-colon rule to remake a file with
+a recipe but no prerequisites, that file will always be remade
+(@pxref{Double-Colon}). In the case of makefiles, a makefile that has a
+double-colon rule with a recipe but no prerequisites will be remade every
+time @code{make} is run, and then again after @code{make} starts over
+and reads the makefiles in again. This would cause an infinite loop:
+@code{make} would constantly remake the makefile, and never do anything
+else. So, to avoid this, @code{make} will @strong{not} attempt to
+remake makefiles which are specified as targets of a double-colon rule
+with a recipe but no prerequisites.@refill
+
+If you do not specify any makefiles to be read with @samp{-f} or
+@samp{--file} options, @code{make} will try the default makefile names;
+@pxref{Makefile Names, ,What Name to Give Your Makefile}. Unlike
+makefiles explicitly requested with @samp{-f} or @samp{--file} options,
+@code{make} is not certain that these makefiles should exist. However,
+if a default makefile does not exist but can be created by running
+@code{make} rules, you probably want the rules to be run so that the
+makefile can be used.
+
+Therefore, if none of the default makefiles exists, @code{make} will try
+to make each of them in the same order in which they are searched for
+(@pxref{Makefile Names, ,What Name to Give Your Makefile})
+until it succeeds in making one, or it runs out of names to try. Note
+that it is not an error if @code{make} cannot find or make any makefile;
+a makefile is not always necessary.@refill
+
+When you use the @samp{-t} or @samp{--touch} option
+(@pxref{Instead of Execution, ,Instead of Executing Recipes}),
+you would not want to use an out-of-date makefile to decide which
+targets to touch. So the @samp{-t} option has no effect on updating
+makefiles; they are really updated even if @samp{-t} is specified.
+Likewise, @samp{-q} (or @samp{--question}) and @samp{-n} (or
+@samp{--just-print}) do not prevent updating of makefiles, because an
+out-of-date makefile would result in the wrong output for other targets.
+Thus, @samp{make -f mfile -n foo} will update @file{mfile}, read it in,
+and then print the recipe to update @file{foo} and its prerequisites
+without running it. The recipe printed for @file{foo} will be the one
+specified in the updated contents of @file{mfile}.
+
+However, on occasion you might actually wish to prevent updating of even
+the makefiles. You can do this by specifying the makefiles as goals in
+the command line as well as specifying them as makefiles. When the
+makefile name is specified explicitly as a goal, the options @samp{-t}
+and so on do apply to them.
+
+Thus, @samp{make -f mfile -n mfile foo} would read the makefile
+@file{mfile}, print the recipe needed to update it without actually
+running it, and then print the recipe needed to update @file{foo}
+without running that. The recipe for @file{foo} will be the one
+specified by the existing contents of @file{mfile}.
+
+@node Overriding Makefiles, Reading Makefiles, Remaking Makefiles, Makefiles
+@section Overriding Part of Another Makefile
+
+@cindex overriding makefiles
+@cindex makefile, overriding
+Sometimes it is useful to have a makefile that is mostly just like
+another makefile. You can often use the @samp{include} directive to
+include one in the other, and add more targets or variable definitions.
+However, it is invalid for two makefiles to give different recipes for
+the same target. But there is another way.
+
+@cindex match-anything rule, used to override
+In the containing makefile (the one that wants to include the other),
+you can use a match-anything pattern rule to say that to remake any
+target that cannot be made from the information in the containing
+makefile, @code{make} should look in another makefile.
+@xref{Pattern Rules}, for more information on pattern rules.
+
+For example, if you have a makefile called @file{Makefile} that says how
+to make the target @samp{foo} (and other targets), you can write a
+makefile called @file{GNUmakefile} that contains:
+
+@example
+foo:
+ frobnicate > foo
+
+%: force
+ @@$(MAKE) -f Makefile $@@
+force: ;
+@end example
+
+If you say @samp{make foo}, @code{make} will find @file{GNUmakefile},
+read it, and see that to make @file{foo}, it needs to run the recipe
+@samp{frobnicate > foo}. If you say @samp{make bar}, @code{make} will
+find no way to make @file{bar} in @file{GNUmakefile}, so it will use the
+recipe from the pattern rule: @samp{make -f Makefile bar}. If
+@file{Makefile} provides a rule for updating @file{bar}, @code{make}
+will apply the rule. And likewise for any other target that
+@file{GNUmakefile} does not say how to make.
+
+The way this works is that the pattern rule has a pattern of just
+@samp{%}, so it matches any target whatever. The rule specifies a
+prerequisite @file{force}, to guarantee that the recipe will be run even
+if the target file already exists. We give the @file{force} target an
+empty recipe to prevent @code{make} from searching for an implicit rule to
+build it---otherwise it would apply the same match-anything rule to
+@file{force} itself and create a prerequisite loop!
+
+@node Reading Makefiles, Secondary Expansion, Overriding Makefiles, Makefiles
+@section How @code{make} Reads a Makefile
+@cindex reading makefiles
+@cindex makefile, parsing
+
+GNU @code{make} does its work in two distinct phases. During the first
+phase it reads all the makefiles, included makefiles, etc. and
+internalizes all the variables and their values, implicit and explicit
+rules, and constructs a dependency graph of all the targets and their
+prerequisites. During the second phase, @code{make} uses these internal
+structures to determine what targets will need to be rebuilt and to
+invoke the rules necessary to do so.
+
+It's important to understand this two-phase approach because it has a
+direct impact on how variable and function expansion happens; this is
+often a source of some confusion when writing makefiles. Here we will
+present a summary of the phases in which expansion happens for different
+constructs within the makefile. We say that expansion is
+@dfn{immediate} if it happens during the first phase: in this case
+@code{make} will expand any variables or functions in that section of a
+construct as the makefile is parsed. We say that expansion is
+@dfn{deferred} if expansion is not performed immediately. Expansion of
+a deferred construct is not performed until either the construct appears
+later in an immediate context, or until the second phase.
+
+You may not be familiar with some of these constructs yet. You can
+reference this section as you become familiar with them, in later
+chapters.
+
+@subheading Variable Assignment
+@cindex +=, expansion
+@cindex =, expansion
+@cindex ?=, expansion
+@cindex +=, expansion
+@cindex !=, expansion
+@cindex define, expansion
+
+Variable definitions are parsed as follows:
+
+@example
+@var{immediate} = @var{deferred}
+@var{immediate} ?= @var{deferred}
+@var{immediate} := @var{immediate}
+@var{immediate} ::= @var{immediate}
+@var{immediate} += @var{deferred} or @var{immediate}
+@var{immediate} != @var{immediate}
+
+define @var{immediate}
+ @var{deferred}
+endef
+
+define @var{immediate} =
+ @var{deferred}
+endef
+
+define @var{immediate} ?=
+ @var{deferred}
+endef
+
+define @var{immediate} :=
+ @var{immediate}
+endef
+
+define @var{immediate} ::=
+ @var{immediate}
+endef
+
+define @var{immediate} +=
+ @var{deferred} or @var{immediate}
+endef
+
+define @var{immediate} !=
+ @var{immediate}
+endef
+@end example
+
+For the append operator, @samp{+=}, the right-hand side is considered
+immediate if the variable was previously set as a simple variable
+(@samp{:=} or @samp{::=}), and deferred otherwise.
+
+For the shell assignment operator, @samp{!=}, the right-hand side is
+evaluated immediately and handed to the shell. The result is stored in the
+variable named on the left, and that variable becomes a simple variable
+(and will thus be re-evaluated on each reference).
+
+@subheading Conditional Directives
+@cindex ifdef, expansion
+@cindex ifeq, expansion
+@cindex ifndef, expansion
+@cindex ifneq, expansion
+
+Conditional directives are parsed immediately. This means, for
+example, that automatic variables cannot be used in conditional
+directives, as automatic variables are not set until the recipe for
+that rule is invoked. If you need to use automatic variables in a
+conditional directive you @emph{must} move the condition into the
+recipe and use shell conditional syntax instead.
+
+@subheading Rule Definition
+@cindex target, expansion
+@cindex prerequisite, expansion
+@cindex implicit rule, expansion
+@cindex pattern rule, expansion
+@cindex explicit rule, expansion
+
+A rule is always expanded the same way, regardless of the form:
+
+@example
+@var{immediate} : @var{immediate} ; @var{deferred}
+ @var{deferred}
+@end example
+
+That is, the target and prerequisite sections are expanded immediately,
+and the recipe used to construct the target is always deferred. This
+general rule is true for explicit rules, pattern rules, suffix rules,
+static pattern rules, and simple prerequisite definitions.
+
+@node Secondary Expansion, , Reading Makefiles, Makefiles
+@section Secondary Expansion
+@cindex secondary expansion
+@cindex expansion, secondary
+
+@findex .SECONDEXPANSION
+In the previous section we learned that GNU @code{make} works in two
+distinct phases: a read-in phase and a target-update phase
+(@pxref{Reading Makefiles, , How @code{make} Reads a Makefile}). GNU
+make also has the ability to enable a @emph{second expansion} of the
+prerequisites (only) for some or all targets defined in the makefile.
+In order for this second expansion to occur, the special target
+@code{.SECONDEXPANSION} must be defined before the first prerequisite
+list that makes use of this feature.
+
+If that special target is defined then in between the two phases
+mentioned above, right at the end of the read-in phase, all the
+prerequisites of the targets defined after the special target are
+expanded a @emph{second time}. In most circumstances this secondary
+expansion will have no effect, since all variable and function
+references will have been expanded during the initial parsing of the
+makefiles. In order to take advantage of the secondary expansion
+phase of the parser, then, it's necessary to @emph{escape} the
+variable or function reference in the makefile. In this case the
+first expansion merely un-escapes the reference but doesn't expand it,
+and expansion is left to the secondary expansion phase. For example,
+consider this makefile:
+
+@example
+.SECONDEXPANSION:
+ONEVAR = onefile
+TWOVAR = twofile
+myfile: $(ONEVAR) $$(TWOVAR)
+@end example
+
+After the first expansion phase the prerequisites list of the
+@file{myfile} target will be @code{onefile} and @code{$(TWOVAR)}; the
+first (unescaped) variable reference to @var{ONEVAR} is expanded,
+while the second (escaped) variable reference is simply unescaped,
+without being recognized as a variable reference. Now during the
+secondary expansion the first word is expanded again but since it
+contains no variable or function references it remains the value
+@file{onefile}, while the second word is now a normal reference to the
+variable @var{TWOVAR}, which is expanded to the value @file{twofile}.
+The final result is that there are two prerequisites, @file{onefile}
+and @file{twofile}.
+
+Obviously, this is not a very interesting case since the same result
+could more easily have been achieved simply by having both variables
+appear, unescaped, in the prerequisites list. One difference becomes
+apparent if the variables are reset; consider this example:
+
+@example
+.SECONDEXPANSION:
+AVAR = top
+onefile: $(AVAR)
+twofile: $$(AVAR)
+AVAR = bottom
+@end example
+
+Here the prerequisite of @file{onefile} will be expanded immediately,
+and resolve to the value @file{top}, while the prerequisite of
+@file{twofile} will not be full expanded until the secondary expansion
+and yield a value of @file{bottom}.
+
+This is marginally more exciting, but the true power of this feature
+only becomes apparent when you discover that secondary expansions
+always take place within the scope of the automatic variables for that
+target. This means that you can use variables such as @code{$@@},
+@code{$*}, etc. during the second expansion and they will have their
+expected values, just as in the recipe. All you have to do is defer
+the expansion by escaping the @code{$}. Also, secondary expansion
+occurs for both explicit and implicit (pattern) rules. Knowing this,
+the possible uses for this feature increase dramatically. For
+example:
+
+@example
+.SECONDEXPANSION:
+main_OBJS := main.o try.o test.o
+lib_OBJS := lib.o api.o
+
+main lib: $$($$@@_OBJS)
+@end example
+
+Here, after the initial expansion the prerequisites of both the
+@file{main} and @file{lib} targets will be @code{$($@@_OBJS)}. During
+the secondary expansion, the @code{$@@} variable is set to the name of
+the target and so the expansion for the @file{main} target will yield
+@code{$(main_OBJS)}, or @code{main.o try.o test.o}, while the
+secondary expansion for the @file{lib} target will yield
+@code{$(lib_OBJS)}, or @code{lib.o api.o}.
+
+You can also mix in functions here, as long as they are properly escaped:
+
+@example
+main_SRCS := main.c try.c test.c
+lib_SRCS := lib.c api.c
+
+.SECONDEXPANSION:
+main lib: $$(patsubst %.c,%.o,$$($$@@_SRCS))
+@end example
+
+This version allows users to specify source files rather than object
+files, but gives the same resulting prerequisites list as the previous
+example.
+
+Evaluation of automatic variables during the secondary expansion
+phase, especially of the target name variable @code{$$@@}, behaves
+similarly to evaluation within recipes. However, there are some
+subtle differences and ``corner cases'' which come into play for the
+different types of rule definitions that @code{make} understands. The
+subtleties of using the different automatic variables are described
+below.
+
+@subheading Secondary Expansion of Explicit Rules
+@cindex secondary expansion and explicit rules
+@cindex explicit rules, secondary expansion of
+
+During the secondary expansion of explicit rules, @code{$$@@} and
+@code{$$%} evaluate, respectively, to the file name of the target and,
+when the target is an archive member, the target member name. The
+@code{$$<} variable evaluates to the first prerequisite in the first
+rule for this target. @code{$$^} and @code{$$+} evaluate to the list
+of all prerequisites of rules @emph{that have already appeared} for
+the same target (@code{$$+} with repetitions and @code{$$^}
+without). The following example will help illustrate these behaviors:
+
+@example
+.SECONDEXPANSION:
+
+foo: foo.1 bar.1 $$< $$^ $$+ # line #1
+
+foo: foo.2 bar.2 $$< $$^ $$+ # line #2
+
+foo: foo.3 bar.3 $$< $$^ $$+ # line #3
+@end example
+
+In the first prerequisite list, all three variables (@code{$$<},
+@code{$$^}, and @code{$$+}) expand to the empty string. In the
+second, they will have values @code{foo.1}, @code{foo.1 bar.1}, and
+@code{foo.1 bar.1} respectively. In the third they will have values
+@code{foo.1}, @code{foo.1 bar.1 foo.2 bar.2}, and @code{foo.1 bar.1
+foo.2 bar.2 foo.1 foo.1 bar.1 foo.1 bar.1} respectively.
+
+Rules undergo secondary expansion in makefile order, except that
+the rule with the recipe is always evaluated last.
+
+The variables @code{$$?} and @code{$$*} are not available and expand
+to the empty string.
+
+@subheading Secondary Expansion of Static Pattern Rules
+@cindex secondary expansion and static pattern rules
+@cindex static pattern rules, secondary expansion of
+
+Rules for secondary expansion of static pattern rules are identical to
+those for explicit rules, above, with one exception: for static
+pattern rules the @code{$$*} variable is set to the pattern stem. As
+with explicit rules, @code{$$?} is not available and expands to the
+empty string.
+
+@subheading Secondary Expansion of Implicit Rules
+@cindex secondary expansion and implicit rules
+@cindex implicit rules, secondary expansion of
+
+As @code{make} searches for an implicit rule, it substitutes the stem
+and then performs secondary expansion for every rule with a matching
+target pattern. The value of the automatic variables is derived in
+the same fashion as for static pattern rules. As an example:
+
+@example
+.SECONDEXPANSION:
+
+foo: bar
+
+foo foz: fo%: bo%
+
+%oo: $$< $$^ $$+ $$*
+@end example
+
+When the implicit rule is tried for target @file{foo}, @code{$$<}
+expands to @file{bar}, @code{$$^} expands to @file{bar boo},
+@code{$$+} also expands to @file{bar boo}, and @code{$$*} expands to
+@file{f}.
+
+Note that the directory prefix (D), as described in @ref{Implicit Rule
+Search, ,Implicit Rule Search Algorithm}, is appended (after
+expansion) to all the patterns in the prerequisites list. As an
+example:@refill
+
+@example
+.SECONDEXPANSION:
+
+/tmp/foo.o:
+
+%.o: $$(addsuffix /%.c,foo bar) foo.h
+ @@echo $^
+@end example
+
+The prerequisite list printed, after the secondary expansion and
+directory prefix reconstruction, will be @file{/tmp/foo/foo.c
+/tmp/bar/foo.c foo.h}. If you are not interested in this
+reconstruction, you can use @code{$$*} instead of @code{%} in the
+prerequisites list.
+
+@node Rules, Recipes, Makefiles, Top
+@chapter Writing Rules
+@cindex writing rules
+@cindex rule, how to write
+@cindex target
+@cindex prerequisite
+
+A @dfn{rule} appears in the makefile and says when and how to remake
+certain files, called the rule's @dfn{targets} (most often only one per rule).
+It lists the other files that are the @dfn{prerequisites} of the target, and
+the @dfn{recipe} to use to create or update the target.
+
+@cindex default goal
+@cindex goal, default
+The order of rules is not significant, except for determining the
+@dfn{default goal}: the target for @code{make} to consider, if you do
+not otherwise specify one. The default goal is the target of the first
+rule in the first makefile. If the first rule has multiple targets,
+only the first target is taken as the default. There are two
+exceptions: a target starting with a period is not a default unless it
+contains one or more slashes, @samp{/}, as well; and, a target that
+defines a pattern rule has no effect on the default goal.
+(@xref{Pattern Rules, ,Defining and Redefining Pattern Rules}.)
+
+Therefore, we usually write the makefile so that the first rule is the
+one for compiling the entire program or all the programs described by
+the makefile (often with a target called @samp{all}).
+@xref{Goals, ,Arguments to Specify the Goals}.
+
+@menu
+* Rule Example:: An example explained.
+* Rule Syntax:: General syntax explained.
+* Prerequisite Types:: There are two types of prerequisites.
+* Wildcards:: Using wildcard characters such as `*'.
+* Directory Search:: Searching other directories for source files.
+* Phony Targets:: Using a target that is not a real file's name.
+* Force Targets:: You can use a target without a recipe
+ or prerequisites to mark other targets
+ as phony.
+* Empty Targets:: When only the date matters and the
+ files are empty.
+* Special Targets:: Targets with special built-in meanings.
+* Multiple Targets:: When to make use of several targets in a rule.
+* Multiple Rules:: How to use several rules with the same target.
+* Static Pattern:: Static pattern rules apply to multiple targets
+ and can vary the prerequisites according to
+ the target name.
+* Double-Colon:: How to use a special kind of rule to allow
+ several independent rules for one target.
+* Automatic Prerequisites:: How to automatically generate rules giving
+ prerequisites from source files themselves.
+@end menu
+
+@ifnottex
+@node Rule Example, Rule Syntax, Rules, Rules
+@section Rule Example
+
+Here is an example of a rule:
+
+@example
+foo.o : foo.c defs.h # module for twiddling the frobs
+ cc -c -g foo.c
+@end example
+
+Its target is @file{foo.o} and its prerequisites are @file{foo.c} and
+@file{defs.h}. It has one command in the recipe: @samp{cc -c -g foo.c}.
+The recipe starts with a tab to identify it as a recipe.
+
+This rule says two things:
+
+@itemize @bullet
+@item
+How to decide whether @file{foo.o} is out of date: it is out of date
+if it does not exist, or if either @file{foo.c} or @file{defs.h} is
+more recent than it.
+
+@item
+How to update the file @file{foo.o}: by running @code{cc} as stated.
+The recipe does not explicitly mention @file{defs.h}, but we presume
+that @file{foo.c} includes it, and that that is why @file{defs.h} was
+added to the prerequisites.
+@end itemize
+@end ifnottex
+
+@node Rule Syntax, Prerequisite Types, Rule Example, Rules
+@section Rule Syntax
+
+@cindex rule syntax
+@cindex syntax of rules
+In general, a rule looks like this:
+
+@example
+@var{targets} : @var{prerequisites}
+ @var{recipe}
+ @dots{}
+@end example
+
+@noindent
+or like this:
+
+@example
+@var{targets} : @var{prerequisites} ; @var{recipe}
+ @var{recipe}
+ @dots{}
+@end example
+
+@cindex targets
+@cindex rule targets
+The @var{targets} are file names, separated by spaces. Wildcard
+characters may be used (@pxref{Wildcards, ,Using Wildcard Characters
+in File Names}) and a name of the form @file{@var{a}(@var{m})}
+represents member @var{m} in archive file @var{a}
+(@pxref{Archive Members, ,Archive Members as Targets}).
+Usually there is only one
+target per rule, but occasionally there is a reason to have more
+(@pxref{Multiple Targets, , Multiple Targets in a Rule}).@refill
+
+@cindex recipes
+@cindex tab character (in commands)
+The @var{recipe} lines start with a tab character (or the first
+character in the value of the @code{.RECIPEPREFIX} variable;
+@pxref{Special Variables}). The first recipe line may appear on the line
+after the prerequisites, with a tab character, or may appear on the
+same line, with a semicolon. Either way, the effect is the same.
+There are other differences in the syntax of recipes.
+@xref{Recipes, ,Writing Recipes in Rules}.
+
+@cindex dollar sign (@code{$}), in rules
+@cindex @code{$}, in rules
+@cindex rules, and @code{$}
+Because dollar signs are used to start @code{make} variable
+references, if you really want a dollar sign in a target or
+prerequisite you must write two of them, @samp{$$} (@pxref{Using
+Variables, ,How to Use Variables}). If you have enabled secondary
+expansion (@pxref{Secondary Expansion}) and you want a literal dollar
+sign in the prerequisites list, you must actually write @emph{four}
+dollar signs (@samp{$$$$}).
+
+You may split a long line by inserting a backslash followed by a
+newline, but this is not required, as @code{make} places no limit on
+the length of a line in a makefile.
+
+A rule tells @code{make} two things: when the targets are out of date,
+and how to update them when necessary.
+
+@cindex prerequisites
+@cindex rule prerequisites
+The criterion for being out of date is specified in terms of the
+@var{prerequisites}, which consist of file names separated by spaces.
+(Wildcards and archive members (@pxref{Archives}) are allowed here too.)
+A target is out of date if it does not exist or if it is older than any
+of the prerequisites (by comparison of last-modification times). The
+idea is that the contents of the target file are computed based on
+information in the prerequisites, so if any of the prerequisites changes,
+the contents of the existing target file are no longer necessarily
+valid.
+
+How to update is specified by a @var{recipe}. This is one or more
+lines to be executed by the shell (normally @samp{sh}), but with some
+extra features (@pxref{Recipes, ,Writing Recipes in Rules}).
+
+@node Prerequisite Types, Wildcards, Rule Syntax, Rules
+@comment node-name, next, previous, up
+@section Types of Prerequisites
+@cindex prerequisite types
+@cindex types of prerequisites
+
+@cindex prerequisites, normal
+@cindex normal prerequisites
+@cindex prerequisites, order-only
+@cindex order-only prerequisites
+There are actually two different types of prerequisites understood by
+GNU @code{make}: normal prerequisites such as described in the
+previous section, and @dfn{order-only} prerequisites. A normal
+prerequisite makes two statements: first, it imposes an order in which
+recipes will be invoked: the recipes for all prerequisites of a target
+will be completed before the recipe for the target is run. Second, it
+imposes a dependency relationship: if any prerequisite is newer than
+the target, then the target is considered out-of-date and must be
+rebuilt.
+
+Normally, this is exactly what you want: if a target's prerequisite is
+updated, then the target should also be updated.
+
+Occasionally, however, you have a situation where you want to impose a
+specific ordering on the rules to be invoked @emph{without} forcing
+the target to be updated if one of those rules is executed. In that
+case, you want to define @dfn{order-only} prerequisites. Order-only
+prerequisites can be specified by placing a pipe symbol (@code{|})
+in the prerequisites list: any prerequisites to the left of the pipe
+symbol are normal; any prerequisites to the right are order-only:
+
+@example
+@var{targets} : @var{normal-prerequisites} | @var{order-only-prerequisites}
+@end example
+
+The normal prerequisites section may of course be empty. Also, you
+may still declare multiple lines of prerequisites for the same target:
+they are appended appropriately (normal prerequisites are appended to
+the list of normal prerequisites; order-only prerequisites are
+appended to the list of order-only prerequisites). Note that if you
+declare the same file to be both a normal and an order-only
+prerequisite, the normal prerequisite takes precedence (since they
+have a strict superset of the behavior of an order-only prerequisite).
+
+Consider an example where your targets are to be placed in a separate
+directory, and that directory might not exist before @code{make} is
+run. In this situation, you want the directory to be created before
+any targets are placed into it but, because the timestamps on
+directories change whenever a file is added, removed, or renamed, we
+certainly don't want to rebuild all the targets whenever the
+directory's timestamp changes. One way to manage this is with
+order-only prerequisites: make the directory an order-only
+prerequisite on all the targets:
+
+@example
+OBJDIR := objdir
+OBJS := $(addprefix $(OBJDIR)/,foo.o bar.o baz.o)
+
+$(OBJDIR)/%.o : %.c
+ $(COMPILE.c) $(OUTPUT_OPTION) $<
+
+all: $(OBJS)
+
+$(OBJS): | $(OBJDIR)
+
+$(OBJDIR):
+ mkdir $(OBJDIR)
+@end example
+
+Now the rule to create the @file{objdir} directory will be run, if
+needed, before any @samp{.o} is built, but no @samp{.o} will be built
+because the @file{objdir} directory timestamp changed.
+
+@node Wildcards, Directory Search, Prerequisite Types, Rules
+@section Using Wildcard Characters in File Names
+@cindex wildcard
+@cindex file name with wildcards
+@cindex globbing (wildcards)
+
+@cindex @code{*} (wildcard character)
+@cindex @code{?} (wildcard character)
+@cindex @code{[@dots{}]} (wildcard characters)
+A single file name can specify many files using @dfn{wildcard characters}.
+The wildcard characters in @code{make} are @samp{*}, @samp{?} and
+@samp{[@dots{}]}, the same as in the Bourne shell. For example, @file{*.c}
+specifies a list of all the files (in the working directory) whose names
+end in @samp{.c}.@refill
+
+@cindex @code{~} (tilde)
+@cindex tilde (@code{~})
+@cindex home directory
+The character @samp{~} at the beginning of a file name also has special
+significance. If alone, or followed by a slash, it represents your home
+directory. For example @file{~/bin} expands to @file{/home/you/bin}.
+If the @samp{~} is followed by a word, the string represents the home
+directory of the user named by that word. For example @file{~john/bin}
+expands to @file{/home/john/bin}. On systems which don't have a home
+directory for each user (such as MS-DOS or MS-Windows), this
+functionality can be simulated by setting the environment variable
+@var{HOME}.@refill
+
+Wildcard expansion is performed by @code{make} automatically in
+targets and in prerequisites. In recipes, the shell is responsible
+for wildcard expansion. In other contexts, wildcard expansion happens
+only if you request it explicitly with the @code{wildcard} function.
+
+The special significance of a wildcard character can be turned off by
+preceding it with a backslash. Thus, @file{foo\*bar} would refer to a
+specific file whose name consists of @samp{foo}, an asterisk, and
+@samp{bar}.@refill
+
+@menu
+* Wildcard Examples:: Several examples.
+* Wildcard Pitfall:: Problems to avoid.
+* Wildcard Function:: How to cause wildcard expansion where
+ it does not normally take place.
+@end menu
+
+@node Wildcard Examples, Wildcard Pitfall, Wildcards, Wildcards
+@subsection Wildcard Examples
+
+Wildcards can be used in the recipe of a rule, where they are expanded
+by the shell. For example, here is a rule to delete all the object files:
+
+@example
+@group
+clean:
+ rm -f *.o
+@end group
+@end example
+@cindex @code{rm} (shell command)
+
+Wildcards are also useful in the prerequisites of a rule. With the
+following rule in the makefile, @samp{make print} will print all the
+@samp{.c} files that have changed since the last time you printed them:
+
+@example
+print: *.c
+ lpr -p $?
+ touch print
+@end example
+
+@cindex @code{print} target
+@cindex @code{lpr} (shell command)
+@cindex @code{touch} (shell command)
+@noindent
+This rule uses @file{print} as an empty target file; see @ref{Empty
+Targets, ,Empty Target Files to Record Events}. (The automatic variable
+@samp{$?} is used to print only those files that have changed; see
+@ref{Automatic Variables}.)@refill
+
+Wildcard expansion does not happen when you define a variable. Thus, if
+you write this:
+
+@example
+objects = *.o
+@end example
+
+@noindent
+then the value of the variable @code{objects} is the actual string
+@samp{*.o}. However, if you use the value of @code{objects} in a
+target or prerequisite, wildcard expansion will take place there. If
+you use the value of @code{objects} in a recipe, the shell may perform
+wildcard expansion when the recipe runs. To set @code{objects} to the
+expansion, instead use:
+
+@example
+objects := $(wildcard *.o)
+@end example
+
+@noindent
+@xref{Wildcard Function}.
+
+@node Wildcard Pitfall, Wildcard Function, Wildcard Examples, Wildcards
+@subsection Pitfalls of Using Wildcards
+@cindex wildcard pitfalls
+@cindex pitfalls of wildcards
+@cindex mistakes with wildcards
+@cindex errors with wildcards
+@cindex problems with wildcards
+
+Now here is an example of a naive way of using wildcard expansion, that
+does not do what you would intend. Suppose you would like to say that the
+executable file @file{foo} is made from all the object files in the
+directory, and you write this:
+
+@example
+objects = *.o
+
+foo : $(objects)
+ cc -o foo $(CFLAGS) $(objects)
+@end example
+
+@noindent
+The value of @code{objects} is the actual string @samp{*.o}. Wildcard
+expansion happens in the rule for @file{foo}, so that each @emph{existing}
+@samp{.o} file becomes a prerequisite of @file{foo} and will be recompiled if
+necessary.
+
+But what if you delete all the @samp{.o} files? When a wildcard matches
+no files, it is left as it is, so then @file{foo} will depend on the
+oddly-named file @file{*.o}. Since no such file is likely to exist,
+@code{make} will give you an error saying it cannot figure out how to
+make @file{*.o}. This is not what you want!
+
+Actually it is possible to obtain the desired result with wildcard
+expansion, but you need more sophisticated techniques, including the
+@code{wildcard} function and string substitution.
+@ifnottex
+@xref{Wildcard Function, ,The Function @code{wildcard}}.
+@end ifnottex
+@iftex
+These are described in the following section.
+@end iftex
+
+@cindex wildcards and MS-DOS/MS-Windows backslashes
+@cindex backslashes in pathnames and wildcard expansion
+
+Microsoft operating systems (MS-DOS and MS-Windows) use backslashes to
+separate directories in pathnames, like so:
+
+@example
+ c:\foo\bar\baz.c
+@end example
+
+This is equivalent to the Unix-style @file{c:/foo/bar/baz.c} (the
+@file{c:} part is the so-called drive letter). When @code{make} runs on
+these systems, it supports backslashes as well as the Unix-style forward
+slashes in pathnames. However, this support does @emph{not} include the
+wildcard expansion, where backslash is a quote character. Therefore,
+you @emph{must} use Unix-style slashes in these cases.
+
+
+@node Wildcard Function, , Wildcard Pitfall, Wildcards
+@subsection The Function @code{wildcard}
+@findex wildcard
+
+Wildcard expansion happens automatically in rules. But wildcard expansion
+does not normally take place when a variable is set, or inside the
+arguments of a function. If you want to do wildcard expansion in such
+places, you need to use the @code{wildcard} function, like this:
+
+@example
+$(wildcard @var{pattern}@dots{})
+@end example
+
+@noindent
+This string, used anywhere in a makefile, is replaced by a
+space-separated list of names of existing files that match one of the
+given file name patterns. If no existing file name matches a pattern,
+then that pattern is omitted from the output of the @code{wildcard}
+function. Note that this is different from how unmatched wildcards
+behave in rules, where they are used verbatim rather than ignored
+(@pxref{Wildcard Pitfall}).
+
+One use of the @code{wildcard} function is to get a list of all the C source
+files in a directory, like this:
+
+@example
+$(wildcard *.c)
+@end example
+
+We can change the list of C source files into a list of object files by
+replacing the @samp{.c} suffix with @samp{.o} in the result, like this:
+
+@example
+$(patsubst %.c,%.o,$(wildcard *.c))
+@end example
+
+@noindent
+(Here we have used another function, @code{patsubst}.
+@xref{Text Functions, ,Functions for String Substitution and Analysis}.)@refill
+
+Thus, a makefile to compile all C source files in the directory and then
+link them together could be written as follows:
+
+@example
+objects := $(patsubst %.c,%.o,$(wildcard *.c))
+
+foo : $(objects)
+ cc -o foo $(objects)
+@end example
+
+@noindent
+(This takes advantage of the implicit rule for compiling C programs, so
+there is no need to write explicit rules for compiling the files.
+@xref{Flavors, ,The Two Flavors of Variables}, for an explanation of
+@samp{:=}, which is a variant of @samp{=}.)
+
+@node Directory Search, Phony Targets, Wildcards, Rules
+@section Searching Directories for Prerequisites
+@vindex VPATH
+@findex vpath
+@cindex vpath
+@cindex search path for prerequisites (@code{VPATH})
+@cindex directory search (@code{VPATH})
+
+For large systems, it is often desirable to put sources in a separate
+directory from the binaries. The @dfn{directory search} features of
+@code{make} facilitate this by searching several directories
+automatically to find a prerequisite. When you redistribute the files
+among directories, you do not need to change the individual rules,
+just the search paths.
+
+@menu
+* General Search:: Specifying a search path that applies
+ to every prerequisite.
+* Selective Search:: Specifying a search path
+ for a specified class of names.
+* Search Algorithm:: When and how search paths are applied.
+* Recipes/Search:: How to write recipes that work together
+ with search paths.
+* Implicit/Search:: How search paths affect implicit rules.
+* Libraries/Search:: Directory search for link libraries.
+@end menu
+
+@node General Search, Selective Search, Directory Search, Directory Search
+@subsection @code{VPATH}: Search Path for All Prerequisites
+@vindex VPATH
+
+The value of the @code{make} variable @code{VPATH} specifies a list of
+directories that @code{make} should search. Most often, the
+directories are expected to contain prerequisite files that are not in the
+current directory; however, @code{make} uses @code{VPATH} as a search
+list for both prerequisites and targets of rules.
+
+Thus, if a file that is listed as a target or prerequisite does not exist
+in the current directory, @code{make} searches the directories listed in
+@code{VPATH} for a file with that name. If a file is found in one of
+them, that file may become the prerequisite (see below). Rules may then
+specify the names of files in the prerequisite list as if they all
+existed in the current directory. @xref{Recipes/Search, ,Writing Recipes with Directory Search}.
+
+In the @code{VPATH} variable, directory names are separated by colons or
+blanks. The order in which directories are listed is the order followed
+by @code{make} in its search. (On MS-DOS and MS-Windows, semi-colons
+are used as separators of directory names in @code{VPATH}, since the
+colon can be used in the pathname itself, after the drive letter.)
+
+For example,
+
+@example
+VPATH = src:../headers
+@end example
+
+@noindent
+specifies a path containing two directories, @file{src} and
+@file{../headers}, which @code{make} searches in that order.
+
+With this value of @code{VPATH}, the following rule,
+
+@example
+foo.o : foo.c
+@end example
+
+@noindent
+is interpreted as if it were written like this:
+
+@example
+foo.o : src/foo.c
+@end example
+
+@noindent
+assuming the file @file{foo.c} does not exist in the current directory but
+is found in the directory @file{src}.
+
+@node Selective Search, Search Algorithm, General Search, Directory Search
+@subsection The @code{vpath} Directive
+@findex vpath
+
+Similar to the @code{VPATH} variable, but more selective, is the
+@code{vpath} directive (note lower case), which allows you to specify a
+search path for a particular class of file names: those that match a
+particular pattern. Thus you can supply certain search directories for
+one class of file names and other directories (or none) for other file
+names.
+
+There are three forms of the @code{vpath} directive:
+
+@table @code
+@item vpath @var{pattern} @var{directories}
+Specify the search path @var{directories} for file names that match
+@var{pattern}.
+
+The search path, @var{directories}, is a list of directories to be
+searched, separated by colons (semi-colons on MS-DOS and MS-Windows) or
+blanks, just like the search path used in the @code{VPATH} variable.
+
+@item vpath @var{pattern}
+Clear out the search path associated with @var{pattern}.
+
+@c Extra blank line makes sure this gets two lines.
+@item vpath
+
+Clear all search paths previously specified with @code{vpath} directives.
+@end table
+
+A @code{vpath} pattern is a string containing a @samp{%} character. The
+string must match the file name of a prerequisite that is being searched
+for, the @samp{%} character matching any sequence of zero or more
+characters (as in pattern rules; @pxref{Pattern Rules, ,Defining and
+Redefining Pattern Rules}). For example, @code{%.h} matches files that
+end in @code{.h}. (If there is no @samp{%}, the pattern must match the
+prerequisite exactly, which is not useful very often.)
+
+@cindex @code{%}, quoting in @code{vpath}
+@cindex @code{%}, quoting with @code{\} (backslash)
+@cindex @code{\} (backslash), to quote @code{%}
+@cindex backslash (@code{\}), to quote @code{%}
+@cindex quoting @code{%}, in @code{vpath}
+@samp{%} characters in a @code{vpath} directive's pattern can be quoted
+with preceding backslashes (@samp{\}). Backslashes that would otherwise
+quote @samp{%} characters can be quoted with more backslashes.
+Backslashes that quote @samp{%} characters or other backslashes are
+removed from the pattern before it is compared to file names. Backslashes
+that are not in danger of quoting @samp{%} characters go unmolested.@refill
+
+When a prerequisite fails to exist in the current directory, if the
+@var{pattern} in a @code{vpath} directive matches the name of the
+prerequisite file, then the @var{directories} in that directive are searched
+just like (and before) the directories in the @code{VPATH} variable.
+
+For example,
+
+@example
+vpath %.h ../headers
+@end example
+
+@noindent
+tells @code{make} to look for any prerequisite whose name ends in @file{.h}
+in the directory @file{../headers} if the file is not found in the current
+directory.
+
+If several @code{vpath} patterns match the prerequisite file's name, then
+@code{make} processes each matching @code{vpath} directive one by one,
+searching all the directories mentioned in each directive. @code{make}
+handles multiple @code{vpath} directives in the order in which they
+appear in the makefile; multiple directives with the same pattern are
+independent of each other.
+
+@need 750
+Thus,
+
+@example
+@group
+vpath %.c foo
+vpath % blish
+vpath %.c bar
+@end group
+@end example
+
+@noindent
+will look for a file ending in @samp{.c} in @file{foo}, then
+@file{blish}, then @file{bar}, while
+
+@example
+@group
+vpath %.c foo:bar
+vpath % blish
+@end group
+@end example
+
+@noindent
+will look for a file ending in @samp{.c} in @file{foo}, then
+@file{bar}, then @file{blish}.
+
+@node Search Algorithm, Recipes/Search, Selective Search, Directory Search
+@subsection How Directory Searches are Performed
+@cindex algorithm for directory search
+@cindex directory search algorithm
+
+When a prerequisite is found through directory search, regardless of type
+(general or selective), the pathname located may not be the one that
+@code{make} actually provides you in the prerequisite list. Sometimes
+the path discovered through directory search is thrown away.
+
+The algorithm @code{make} uses to decide whether to keep or abandon a
+path found via directory search is as follows:
+
+@enumerate
+@item
+If a target file does not exist at the path specified in the makefile,
+directory search is performed.
+
+@item
+If the directory search is successful, that path is kept and this file
+is tentatively stored as the target.
+
+@item
+All prerequisites of this target are examined using this same method.
+
+@item
+After processing the prerequisites, the target may or may not need to be
+rebuilt:
+
+@enumerate a
+@item
+If the target does @emph{not} need to be rebuilt, the path to the file
+found during directory search is used for any prerequisite lists which
+contain this target. In short, if @code{make} doesn't need to rebuild
+the target then you use the path found via directory search.
+
+@item
+If the target @emph{does} need to be rebuilt (is out-of-date), the
+pathname found during directory search is @emph{thrown away}, and the
+target is rebuilt using the file name specified in the makefile. In
+short, if @code{make} must rebuild, then the target is rebuilt locally,
+not in the directory found via directory search.
+@end enumerate
+@end enumerate
+
+This algorithm may seem complex, but in practice it is quite often
+exactly what you want.
+
+@cindex traditional directory search (GPATH)
+@cindex directory search, traditional (GPATH)
+Other versions of @code{make} use a simpler algorithm: if the file does
+not exist, and it is found via directory search, then that pathname is
+always used whether or not the target needs to be built. Thus, if the
+target is rebuilt it is created at the pathname discovered during
+directory search.
+
+@vindex GPATH
+If, in fact, this is the behavior you want for some or all of your
+directories, you can use the @code{GPATH} variable to indicate this to
+@code{make}.
+
+@code{GPATH} has the same syntax and format as @code{VPATH} (that is, a
+space- or colon-delimited list of pathnames). If an out-of-date target
+is found by directory search in a directory that also appears in
+@code{GPATH}, then that pathname is not thrown away. The target is
+rebuilt using the expanded path.
+
+@node Recipes/Search, Implicit/Search, Search Algorithm, Directory Search
+@subsection Writing Recipes with Directory Search
+@cindex recipes, and directory search
+@cindex directory search (@code{VPATH}), and recipes
+
+When a prerequisite is found in another directory through directory search,
+this cannot change the recipe of the rule; they will execute as written.
+Therefore, you must write the recipe with care so that it will look for
+the prerequisite in the directory where @code{make} finds it.
+
+This is done with the @dfn{automatic variables} such as @samp{$^}
+(@pxref{Automatic Variables}).
+For instance, the value of @samp{$^} is a
+list of all the prerequisites of the rule, including the names of
+the directories in which they were found, and the value of
+@samp{$@@} is the target. Thus:@refill
+
+@example
+foo.o : foo.c
+ cc -c $(CFLAGS) $^ -o $@@
+@end example
+
+@noindent
+(The variable @code{CFLAGS} exists so you can specify flags for C
+compilation by implicit rules; we use it here for consistency so it will
+affect all C compilations uniformly;
+@pxref{Implicit Variables, ,Variables Used by Implicit Rules}.)
+
+Often the prerequisites include header files as well, which you do not
+want to mention in the recipe. The automatic variable @samp{$<} is
+just the first prerequisite:
+
+@example
+VPATH = src:../headers
+foo.o : foo.c defs.h hack.h
+ cc -c $(CFLAGS) $< -o $@@
+@end example
+
+@node Implicit/Search, Libraries/Search, Recipes/Search, Directory Search
+@subsection Directory Search and Implicit Rules
+@cindex @code{VPATH}, and implicit rules
+@cindex directory search (@code{VPATH}), and implicit rules
+@cindex search path for prerequisites (@code{VPATH}), and implicit rules
+@cindex implicit rule, and directory search
+@cindex implicit rule, and @code{VPATH}
+@cindex rule, implicit, and directory search
+@cindex rule, implicit, and @code{VPATH}
+
+The search through the directories specified in @code{VPATH} or with
+@code{vpath} also happens during consideration of implicit rules
+(@pxref{Implicit Rules, ,Using Implicit Rules}).
+
+For example, when a file @file{foo.o} has no explicit rule, @code{make}
+considers implicit rules, such as the built-in rule to compile
+@file{foo.c} if that file exists. If such a file is lacking in the
+current directory, the appropriate directories are searched for it. If
+@file{foo.c} exists (or is mentioned in the makefile) in any of the
+directories, the implicit rule for C compilation is applied.
+
+The recipes of implicit rules normally use automatic variables as a
+matter of necessity; consequently they will use the file names found by
+directory search with no extra effort.
+
+@node Libraries/Search, , Implicit/Search, Directory Search
+@subsection Directory Search for Link Libraries
+@cindex link libraries, and directory search
+@cindex libraries for linking, directory search
+@cindex directory search (@code{VPATH}), and link libraries
+@cindex @code{VPATH}, and link libraries
+@cindex search path for prerequisites (@code{VPATH}), and link libraries
+@cindex @code{-l} (library search)
+@cindex link libraries, patterns matching
+@cindex @code{.LIBPATTERNS}, and link libraries
+@vindex .LIBPATTERNS
+
+Directory search applies in a special way to libraries used with the
+linker. This special feature comes into play when you write a prerequisite
+whose name is of the form @samp{-l@var{name}}. (You can tell something
+strange is going on here because the prerequisite is normally the name of a
+file, and the @emph{file name} of a library generally looks like
+@file{lib@var{name}.a}, not like @samp{-l@var{name}}.)@refill
+
+When a prerequisite's name has the form @samp{-l@var{name}}, @code{make}
+handles it specially by searching for the file @file{lib@var{name}.so},
+and, if it is not found, for the file @file{lib@var{name}.a} in the current
+directory, in directories specified by matching @code{vpath}
+search paths and the @code{VPATH} search path, and then in the
+directories @file{/lib}, @file{/usr/lib}, and @file{@var{prefix}/lib}
+(normally @file{/usr/local/lib}, but MS-DOS/MS-Windows versions of
+@code{make} behave as if @var{prefix} is defined to be the root of the
+DJGPP installation tree).
+
+For example, if there is a @file{/usr/lib/libcurses.a} library on your
+system (and no @file{/usr/lib/libcurses.so} file), then
+
+@example
+@group
+foo : foo.c -lcurses
+ cc $^ -o $@@
+@end group
+@end example
+
+@noindent
+would cause the command @samp{cc foo.c /usr/lib/libcurses.a -o foo} to
+be executed when @file{foo} is older than @file{foo.c} or than
+@file{/usr/lib/libcurses.a}.@refill
+
+Although the default set of files to be searched for is
+@file{lib@var{name}.so} and @file{lib@var{name}.a}, this is customizable
+via the @code{.LIBPATTERNS} variable. Each word in the value of this
+variable is a pattern string. When a prerequisite like
+@samp{-l@var{name}} is seen, @code{make} will replace the percent in
+each pattern in the list with @var{name} and perform the above directory
+searches using each library file name.
+
+The default value for @code{.LIBPATTERNS} is @samp{lib%.so lib%.a},
+which provides the default behavior described above.
+
+You can turn off link library expansion completely by setting this
+variable to an empty value.
+
+@node Phony Targets, Force Targets, Directory Search, Rules
+@section Phony Targets
+@cindex phony targets
+@cindex targets, phony
+@cindex targets without a file
+
+A phony target is one that is not really the name of a file; rather it
+is just a name for a recipe to be executed when you make an explicit
+request. There are two reasons to use a phony target: to avoid a
+conflict with a file of the same name, and to improve performance.
+
+If you write a rule whose recipe will not create the target file, the
+recipe will be executed every time the target comes up for remaking.
+Here is an example:
+
+@example
+@group
+clean:
+ rm *.o temp
+@end group
+@end example
+
+@noindent
+Because the @code{rm} command does not create a file named @file{clean},
+probably no such file will ever exist. Therefore, the @code{rm} command
+will be executed every time you say @samp{make clean}.
+@cindex @code{rm} (shell command)
+
+@findex .PHONY
+In this example, the @file{clean} target will not work properly if a
+file named @file{clean} is ever created in this directory. Since it
+has no prerequisites, @file{clean} would always be considered up to
+date and its recipe would not be executed. To avoid this problem you
+can explicitly declare the target to be phony by making it a
+prerequisite of the special target @code{.PHONY}
+(@pxref{Special Targets, ,Special Built-in Target Names}) as follows:
+
+@example
+@group
+.PHONY: clean
+clean:
+ rm *.o temp
+@end group
+@end example
+
+@noindent
+Once this is done, @samp{make clean} will run the recipe regardless of
+whether there is a file named @file{clean}.
+
+Phony targets are also useful in conjunction with recursive
+invocations of @code{make} (@pxref{Recursion, ,Recursive Use of @code{make}}).
+In this situation the makefile will often contain a variable which
+lists a number of sub-directories to be built. A simplistic way to
+handle this is to define one rule with a recipe that loops over the
+sub-directories, like this:
+
+@example
+@group
+SUBDIRS = foo bar baz
+
+subdirs:
+ for dir in $(SUBDIRS); do \
+ $(MAKE) -C $$dir; \
+ done
+@end group
+@end example
+
+There are problems with this method, however. First, any error
+detected in a sub-make is ignored by this rule, so it will continue
+to build the rest of the directories even when one fails. This can be
+overcome by adding shell commands to note the error and exit, but then
+it will do so even if @code{make} is invoked with the @code{-k}
+option, which is unfortunate. Second, and perhaps more importantly,
+you cannot take advantage of @code{make}'s ability to build targets in
+parallel (@pxref{Parallel, ,Parallel Execution}), since there is only
+one rule.
+
+By declaring the sub-directories as @code{.PHONY} targets (you must do
+this as the sub-directory obviously always exists; otherwise it won't
+be built) you can remove these problems:
+
+@example
+@group
+SUBDIRS = foo bar baz
+
+.PHONY: subdirs $(SUBDIRS)
+
+subdirs: $(SUBDIRS)
+
+$(SUBDIRS):
+ $(MAKE) -C $@@
+
+foo: baz
+@end group
+@end example
+
+Here we've also declared that the @file{foo} sub-directory cannot be
+built until after the @file{baz} sub-directory is complete; this kind of
+relationship declaration is particularly important when attempting
+parallel builds.
+
+The implicit rule search (@pxref{Implicit Rules}) is skipped for
+@code{.PHONY} targets. This is why declaring a target as
+@code{.PHONY} is good for performance, even if you are not worried
+about the actual file existing.
+
+A phony target should not be a prerequisite of a real target file; if it
+is, its recipe will be run every time @code{make} goes to update that
+file. As long as a phony target is never a prerequisite of a real
+target, the phony target recipe will be executed only when the phony
+target is a specified goal (@pxref{Goals, ,Arguments to Specify the
+Goals}).
+
+Phony targets can have prerequisites. When one directory contains multiple
+programs, it is most convenient to describe all of the programs in one
+makefile @file{./Makefile}. Since the target remade by default will be the
+first one in the makefile, it is common to make this a phony target named
+@samp{all} and give it, as prerequisites, all the individual programs. For
+example:
+
+@example
+all : prog1 prog2 prog3
+.PHONY : all
+
+prog1 : prog1.o utils.o
+ cc -o prog1 prog1.o utils.o
+
+prog2 : prog2.o
+ cc -o prog2 prog2.o
+
+prog3 : prog3.o sort.o utils.o
+ cc -o prog3 prog3.o sort.o utils.o
+@end example
+
+@noindent
+Now you can say just @samp{make} to remake all three programs, or
+specify as arguments the ones to remake (as in @samp{make prog1
+prog3}). Phoniness is not inherited: the prerequisites of a phony
+target are not themselves phony, unless explicitly declared to be so.
+
+When one phony target is a prerequisite of another, it serves as a subroutine
+of the other. For example, here @samp{make cleanall} will delete the
+object files, the difference files, and the file @file{program}:
+
+@example
+.PHONY: cleanall cleanobj cleandiff
+
+cleanall : cleanobj cleandiff
+ rm program
+
+cleanobj :
+ rm *.o
+
+cleandiff :
+ rm *.diff
+@end example
+
+@node Force Targets, Empty Targets, Phony Targets, Rules
+@section Rules without Recipes or Prerequisites
+@cindex force targets
+@cindex targets, force
+@cindex @code{FORCE}
+@cindex rule, no recipe or prerequisites
+
+If a rule has no prerequisites or recipe, and the target of the rule
+is a nonexistent file, then @code{make} imagines this target to have
+been updated whenever its rule is run. This implies that all targets
+depending on this one will always have their recipe run.
+
+An example will illustrate this:
+
+@example
+@group
+clean: FORCE
+ rm $(objects)
+FORCE:
+@end group
+@end example
+
+Here the target @samp{FORCE} satisfies the special conditions, so the
+target @file{clean} that depends on it is forced to run its recipe.
+There is nothing special about the name @samp{FORCE}, but that is one
+name commonly used this way.
+
+As you can see, using @samp{FORCE} this way has the same results as using
+@samp{.PHONY: clean}.
+
+Using @samp{.PHONY} is more explicit and more efficient. However,
+other versions of @code{make} do not support @samp{.PHONY}; thus
+@samp{FORCE} appears in many makefiles. @xref{Phony Targets}.
+
+@node Empty Targets, Special Targets, Force Targets, Rules
+@section Empty Target Files to Record Events
+@cindex empty targets
+@cindex targets, empty
+@cindex recording events with empty targets
+
+The @dfn{empty target} is a variant of the phony target; it is used to hold
+recipes for an action that you request explicitly from time to time.
+Unlike a phony target, this target file can really exist; but the file's
+contents do not matter, and usually are empty.
+
+The purpose of the empty target file is to record, with its
+last-modification time, when the rule's recipe was last executed. It
+does so because one of the commands in the recipe is a @code{touch}
+command to update the target file.
+
+The empty target file should have some prerequisites (otherwise it
+doesn't make sense). When you ask to remake the empty target, the
+recipe is executed if any prerequisite is more recent than the target;
+in other words, if a prerequisite has changed since the last time you
+remade the target. Here is an example:
+
+@example
+print: foo.c bar.c
+ lpr -p $?
+ touch print
+@end example
+@cindex @code{print} target
+@cindex @code{lpr} (shell command)
+@cindex @code{touch} (shell command)
+
+@noindent
+With this rule, @samp{make print} will execute the @code{lpr} command if
+either source file has changed since the last @samp{make print}. The
+automatic variable @samp{$?} is used to print only those files that have
+changed (@pxref{Automatic Variables}).
+
+@node Special Targets, Multiple Targets, Empty Targets, Rules
+@section Special Built-in Target Names
+@cindex special targets
+@cindex built-in special targets
+@cindex targets, built-in special
+
+Certain names have special meanings if they appear as targets.
+
+@table @code
+@findex .PHONY
+@item .PHONY
+
+The prerequisites of the special target @code{.PHONY} are considered to
+be phony targets. When it is time to consider such a target,
+@code{make} will run its recipe unconditionally, regardless of
+whether a file with that name exists or what its last-modification
+time is. @xref{Phony Targets, ,Phony Targets}.
+
+@findex .SUFFIXES
+@item .SUFFIXES
+
+The prerequisites of the special target @code{.SUFFIXES} are the list
+of suffixes to be used in checking for suffix rules.
+@xref{Suffix Rules, , Old-Fashioned Suffix Rules}.
+
+@findex .DEFAULT
+@item .DEFAULT
+
+The recipe specified for @code{.DEFAULT} is used for any target for
+which no rules are found (either explicit rules or implicit rules).
+@xref{Last Resort}. If a @code{.DEFAULT} recipe is specified, every
+file mentioned as a prerequisite, but not as a target in a rule, will have
+that recipe executed on its behalf. @xref{Implicit Rule Search,
+,Implicit Rule Search Algorithm}.
+
+@findex .PRECIOUS
+@item .PRECIOUS
+@cindex precious targets
+@cindex preserving with @code{.PRECIOUS}
+
+The targets which @code{.PRECIOUS} depends on are given the following
+special treatment: if @code{make} is killed or interrupted during the
+execution of their recipes, the target is not deleted.
+@xref{Interrupts, ,Interrupting or Killing @code{make}}. Also, if the
+target is an intermediate file, it will not be deleted after it is no
+longer needed, as is normally done. @xref{Chained Rules, ,Chains of
+Implicit Rules}. In this latter respect it overlaps with the
+@code{.SECONDARY} special target.
+
+You can also list the target pattern of an implicit rule (such as
+@samp{%.o}) as a prerequisite file of the special target @code{.PRECIOUS}
+to preserve intermediate files created by rules whose target patterns
+match that file's name.
+
+@findex .INTERMEDIATE
+@item .INTERMEDIATE
+@cindex intermediate targets, explicit
+
+The targets which @code{.INTERMEDIATE} depends on are treated as
+intermediate files. @xref{Chained Rules, ,Chains of Implicit Rules}.
+@code{.INTERMEDIATE} with no prerequisites has no effect.
+
+@findex .SECONDARY
+@item .SECONDARY
+@cindex secondary targets
+@cindex preserving with @code{.SECONDARY}
+
+The targets which @code{.SECONDARY} depends on are treated as
+intermediate files, except that they are never automatically deleted.
+@xref{Chained Rules, ,Chains of Implicit Rules}.
+
+@code{.SECONDARY} with no prerequisites causes all targets to be treated
+as secondary (i.e., no target is removed because it is considered
+intermediate).
+
+@findex .SECONDEXPANSION
+@item .SECONDEXPANSION
+
+If @code{.SECONDEXPANSION} is mentioned as a target anywhere in the
+makefile, then all prerequisite lists defined @emph{after} it appears
+will be expanded a second time after all makefiles have been read in.
+@xref{Secondary Expansion, ,Secondary Expansion}.
+
+@findex .DELETE_ON_ERROR
+@item .DELETE_ON_ERROR
+@cindex removing targets on failure
+
+If @code{.DELETE_ON_ERROR} is mentioned as a target anywhere in the
+makefile, then @code{make} will delete the target of a rule if it has
+changed and its recipe exits with a nonzero exit status, just as it
+does when it receives a signal. @xref{Errors, ,Errors in Recipes}.
+
+@findex .IGNORE
+@item .IGNORE
+
+If you specify prerequisites for @code{.IGNORE}, then @code{make} will
+ignore errors in execution of the recipe for those particular files.
+The recipe for @code{.IGNORE} (if any) is ignored.
+
+If mentioned as a target with no prerequisites, @code{.IGNORE} says to
+ignore errors in execution of recipes for all files. This usage of
+@samp{.IGNORE} is supported only for historical compatibility. Since
+this affects every recipe in the makefile, it is not very useful; we
+recommend you use the more selective ways to ignore errors in specific
+recipes. @xref{Errors, ,Errors in Recipes}.
+
+@findex .LOW_RESOLUTION_TIME
+@item .LOW_RESOLUTION_TIME
+
+If you specify prerequisites for @code{.LOW_RESOLUTION_TIME},
+@command{make} assumes that these files are created by commands that
+generate low resolution time stamps. The recipe for the
+@code{.LOW_RESOLUTION_TIME} target are ignored.
+
+The high resolution file time stamps of many modern file systems
+lessen the chance of @command{make} incorrectly concluding that a file
+is up to date. Unfortunately, some hosts do not provide a way to set a
+high resolution file time stamp, so commands like @samp{cp -p} that
+explicitly set a file's time stamp must discard its sub-second part.
+If a file is created by such a command, you should list it as a
+prerequisite of @code{.LOW_RESOLUTION_TIME} so that @command{make}
+does not mistakenly conclude that the file is out of date. For
+example:
+
+@example
+@group
+.LOW_RESOLUTION_TIME: dst
+dst: src
+ cp -p src dst
+@end group
+@end example
+
+Since @samp{cp -p} discards the sub-second part of @file{src}'s time
+stamp, @file{dst} is typically slightly older than @file{src} even when
+it is up to date. The @code{.LOW_RESOLUTION_TIME} line causes
+@command{make} to consider @file{dst} to be up to date if its time stamp
+is at the start of the same second that @file{src}'s time stamp is in.
+
+Due to a limitation of the archive format, archive member time stamps
+are always low resolution. You need not list archive members as
+prerequisites of @code{.LOW_RESOLUTION_TIME}, as @command{make} does this
+automatically.
+
+@findex .SILENT
+@item .SILENT
+
+If you specify prerequisites for @code{.SILENT}, then @code{make} will
+not print the recipe used to remake those particular files before
+executing them. The recipe for @code{.SILENT} is ignored.
+
+If mentioned as a target with no prerequisites, @code{.SILENT} says not
+to print any recipes before executing them. This usage of
+@samp{.SILENT} is supported only for historical compatibility. We
+recommend you use the more selective ways to silence specific recipes.
+@xref{Echoing, ,Recipe Echoing}. If you want to silence all recipes
+for a particular run of @code{make}, use the @samp{-s} or
+@w{@samp{--silent}} option (@pxref{Options Summary}).
+
+@findex .EXPORT_ALL_VARIABLES
+@item .EXPORT_ALL_VARIABLES
+
+Simply by being mentioned as a target, this tells @code{make} to
+export all variables to child processes by default.
+@xref{Variables/Recursion, ,Communicating Variables to a
+Sub-@code{make}}.
+
+@findex .NOTPARALLEL
+@item .NOTPARALLEL
+@cindex parallel execution, overriding
+
+If @code{.NOTPARALLEL} is mentioned as a target, then this invocation
+of @code{make} will be run serially, even if the @samp{-j} option is
+given. Any recursively invoked @code{make} command will still run
+recipes in parallel (unless its makefile also contains this target).
+Any prerequisites on this target are ignored.
+
+@findex .ONESHELL
+@item .ONESHELL
+@cindex recipe execution, single invocation
+
+If @code{.ONESHELL} is mentioned as a target, then when a target is
+built all lines of the recipe will be given to a single invocation of
+the shell rather than each line being invoked separately
+(@pxref{Execution, ,Recipe Execution}).
+
+@findex .POSIX
+@item .POSIX
+@cindex POSIX-conforming mode, setting
+
+If @code{.POSIX} is mentioned as a target, then the makefile will be
+parsed and run in POSIX-conforming mode. This does @emph{not} mean
+that only POSIX-conforming makefiles will be accepted: all advanced
+GNU @code{make} features are still available. Rather, this target
+causes @code{make} to behave as required by POSIX in those areas
+where @code{make}'s default behavior differs.
+
+In particular, if this target is mentioned then recipes will be
+invoked as if the shell had been passed the @code{-e} flag: the first
+failing command in a recipe will cause the recipe to fail immediately.
+@end table
+
+Any defined implicit rule suffix also counts as a special target if it
+appears as a target, and so does the concatenation of two suffixes, such
+as @samp{.c.o}. These targets are suffix rules, an obsolete way of
+defining implicit rules (but a way still widely used). In principle, any
+target name could be special in this way if you break it in two and add
+both pieces to the suffix list. In practice, suffixes normally begin with
+@samp{.}, so these special target names also begin with @samp{.}.
+@xref{Suffix Rules, ,Old-Fashioned Suffix Rules}.
+
+@node Multiple Targets, Multiple Rules, Special Targets, Rules
+@section Multiple Targets in a Rule
+@cindex multiple targets
+@cindex several targets in a rule
+@cindex targets, multiple
+@cindex rule, with multiple targets
+
+A rule with multiple targets is equivalent to writing many rules, each with
+one target, and all identical aside from that. The same recipe applies to
+all the targets, but its effect may vary because you can substitute the
+actual target name into the recipe using @samp{$@@}. The rule contributes
+the same prerequisites to all the targets also.
+
+This is useful in two cases.
+
+@itemize @bullet
+@item
+You want just prerequisites, no recipe. For example:
+
+@example
+kbd.o command.o files.o: command.h
+@end example
+
+@noindent
+gives an additional prerequisite to each of the three object files
+mentioned.
+
+@item
+Similar recipes work for all the targets. The recipes do not need
+to be absolutely identical, since the automatic variable @samp{$@@}
+can be used to substitute the particular target to be remade into the
+commands (@pxref{Automatic Variables}). For example:
+
+@example
+@group
+bigoutput littleoutput : text.g
+ generate text.g -$(subst output,,$@@) > $@@
+@end group
+@end example
+@findex subst
+
+@noindent
+is equivalent to
+
+@example
+bigoutput : text.g
+ generate text.g -big > bigoutput
+littleoutput : text.g
+ generate text.g -little > littleoutput
+@end example
+
+@noindent
+Here we assume the hypothetical program @code{generate} makes two
+types of output, one if given @samp{-big} and one if given
+@samp{-little}.
+@xref{Text Functions, ,Functions for String Substitution and Analysis},
+for an explanation of the @code{subst} function.
+@end itemize
+
+Suppose you would like to vary the prerequisites according to the
+target, much as the variable @samp{$@@} allows you to vary the recipe.
+You cannot do this with multiple targets in an ordinary rule, but you
+can do it with a @dfn{static pattern rule}. @xref{Static Pattern,
+,Static Pattern Rules}.
+
+@node Multiple Rules, Static Pattern, Multiple Targets, Rules
+@section Multiple Rules for One Target
+@cindex multiple rules for one target
+@cindex several rules for one target
+@cindex rule, multiple for one target
+@cindex target, multiple rules for one
+
+One file can be the target of several rules. All the prerequisites
+mentioned in all the rules are merged into one list of prerequisites for
+the target. If the target is older than any prerequisite from any rule,
+the recipe is executed.
+
+There can only be one recipe to be executed for a file. If more than
+one rule gives a recipe for the same file, @code{make} uses the last
+one given and prints an error message. (As a special case, if the
+file's name begins with a dot, no error message is printed. This odd
+behavior is only for compatibility with other implementations of
+@code{make}@dots{} you should avoid using it). Occasionally it is
+useful to have the same target invoke multiple recipes which are
+defined in different parts of your makefile; you can use
+@dfn{double-colon rules} (@pxref{Double-Colon}) for this.
+
+An extra rule with just prerequisites can be used to give a few extra
+prerequisites to many files at once. For example, makefiles often
+have a variable, such as @code{objects}, containing a list of all the
+compiler output files in the system being made. An easy way to say
+that all of them must be recompiled if @file{config.h} changes is to
+write the following:
+
+@example
+objects = foo.o bar.o
+foo.o : defs.h
+bar.o : defs.h test.h
+$(objects) : config.h
+@end example
+
+This could be inserted or taken out without changing the rules that really
+specify how to make the object files, making it a convenient form to use if
+you wish to add the additional prerequisite intermittently.
+
+Another wrinkle is that the additional prerequisites could be
+specified with a variable that you set with a command line argument to
+@code{make} (@pxref{Overriding, ,Overriding Variables}). For example,
+
+@example
+@group
+extradeps=
+$(objects) : $(extradeps)
+@end group
+@end example
+
+@noindent
+means that the command @samp{make extradeps=foo.h} will consider
+@file{foo.h} as a prerequisite of each object file, but plain @samp{make}
+will not.
+
+If none of the explicit rules for a target has a recipe, then @code{make}
+searches for an applicable implicit rule to find one
+@pxref{Implicit Rules, ,Using Implicit Rules}).
+
+@node Static Pattern, Double-Colon, Multiple Rules, Rules
+@section Static Pattern Rules
+@cindex static pattern rule
+@cindex rule, static pattern
+@cindex pattern rules, static (not implicit)
+@cindex varying prerequisites
+@cindex prerequisites, varying (static pattern)
+
+@dfn{Static pattern rules} are rules which specify multiple targets and
+construct the prerequisite names for each target based on the target name.
+They are more general than ordinary rules with multiple targets because the
+targets do not have to have identical prerequisites. Their prerequisites must
+be @emph{analogous}, but not necessarily @emph{identical}.
+
+@menu
+* Static Usage:: The syntax of static pattern rules.
+* Static versus Implicit:: When are they better than implicit rules?
+@end menu
+
+@node Static Usage, Static versus Implicit, Static Pattern, Static Pattern
+@subsection Syntax of Static Pattern Rules
+@cindex static pattern rule, syntax of
+@cindex pattern rules, static, syntax of
+
+Here is the syntax of a static pattern rule:
+
+@example
+@var{targets} @dots{}: @var{target-pattern}: @var{prereq-patterns} @dots{}
+ @var{recipe}
+ @dots{}
+@end example
+
+@noindent
+The @var{targets} list specifies the targets that the rule applies to.
+The targets can contain wildcard characters, just like the targets of
+ordinary rules (@pxref{Wildcards, ,Using Wildcard Characters in File
+Names}).
+
+@cindex target pattern, static (not implicit)
+@cindex stem
+The @var{target-pattern} and @var{prereq-patterns} say how to compute the
+prerequisites of each target. Each target is matched against the
+@var{target-pattern} to extract a part of the target name, called the
+@dfn{stem}. This stem is substituted into each of the @var{prereq-patterns}
+to make the prerequisite names (one from each @var{prereq-pattern}).
+
+Each pattern normally contains the character @samp{%} just once. When the
+@var{target-pattern} matches a target, the @samp{%} can match any part of
+the target name; this part is called the @dfn{stem}. The rest of the
+pattern must match exactly. For example, the target @file{foo.o} matches
+the pattern @samp{%.o}, with @samp{foo} as the stem. The targets
+@file{foo.c} and @file{foo.out} do not match that pattern.@refill
+
+@cindex prerequisite pattern, static (not implicit)
+The prerequisite names for each target are made by substituting the stem
+for the @samp{%} in each prerequisite pattern. For example, if one
+prerequisite pattern is @file{%.c}, then substitution of the stem
+@samp{foo} gives the prerequisite name @file{foo.c}. It is legitimate
+to write a prerequisite pattern that does not contain @samp{%}; then this
+prerequisite is the same for all targets.
+
+@cindex @code{%}, quoting in static pattern
+@cindex @code{%}, quoting with @code{\} (backslash)
+@cindex @code{\} (backslash), to quote @code{%}
+@cindex backslash (@code{\}), to quote @code{%}
+@cindex quoting @code{%}, in static pattern
+@samp{%} characters in pattern rules can be quoted with preceding
+backslashes (@samp{\}). Backslashes that would otherwise quote @samp{%}
+characters can be quoted with more backslashes. Backslashes that quote
+@samp{%} characters or other backslashes are removed from the pattern
+before it is compared to file names or has a stem substituted into it.
+Backslashes that are not in danger of quoting @samp{%} characters go
+unmolested. For example, the pattern @file{the\%weird\\%pattern\\} has
+@samp{the%weird\} preceding the operative @samp{%} character, and
+@samp{pattern\\} following it. The final two backslashes are left alone
+because they cannot affect any @samp{%} character.@refill
+
+Here is an example, which compiles each of @file{foo.o} and @file{bar.o}
+from the corresponding @file{.c} file:
+
+@example
+@group
+objects = foo.o bar.o
+
+all: $(objects)
+
+$(objects): %.o: %.c
+ $(CC) -c $(CFLAGS) $< -o $@@
+@end group
+@end example
+
+@noindent
+Here @samp{$<} is the automatic variable that holds the name of the
+prerequisite and @samp{$@@} is the automatic variable that holds the name
+of the target; see @ref{Automatic Variables}.
+
+Each target specified must match the target pattern; a warning is issued
+for each target that does not. If you have a list of files, only some of
+which will match the pattern, you can use the @code{filter} function to
+remove non-matching file names (@pxref{Text Functions, ,Functions for String Substitution and Analysis}):
+
+@example
+files = foo.elc bar.o lose.o
+
+$(filter %.o,$(files)): %.o: %.c
+ $(CC) -c $(CFLAGS) $< -o $@@
+$(filter %.elc,$(files)): %.elc: %.el
+ emacs -f batch-byte-compile $<
+@end example
+
+@noindent
+In this example the result of @samp{$(filter %.o,$(files))} is
+@file{bar.o lose.o}, and the first static pattern rule causes each of
+these object files to be updated by compiling the corresponding C source
+file. The result of @w{@samp{$(filter %.elc,$(files))}} is
+@file{foo.elc}, so that file is made from @file{foo.el}.@refill
+
+Another example shows how to use @code{$*} in static pattern rules:
+@vindex $*@r{, and static pattern}
+
+@example
+@group
+bigoutput littleoutput : %output : text.g
+ generate text.g -$* > $@@
+@end group
+@end example
+
+@noindent
+When the @code{generate} command is run, @code{$*} will expand to the
+stem, either @samp{big} or @samp{little}.
+
+@node Static versus Implicit, , Static Usage, Static Pattern
+@subsection Static Pattern Rules versus Implicit Rules
+@cindex rule, static pattern versus implicit
+@cindex static pattern rule, versus implicit
+
+A static pattern rule has much in common with an implicit rule defined as a
+pattern rule (@pxref{Pattern Rules, ,Defining and Redefining Pattern Rules}).
+Both have a pattern for the target and patterns for constructing the
+names of prerequisites. The difference is in how @code{make} decides
+@emph{when} the rule applies.
+
+An implicit rule @emph{can} apply to any target that matches its pattern,
+but it @emph{does} apply only when the target has no recipe otherwise
+specified, and only when the prerequisites can be found. If more than one
+implicit rule appears applicable, only one applies; the choice depends on
+the order of rules.
+
+By contrast, a static pattern rule applies to the precise list of targets
+that you specify in the rule. It cannot apply to any other target and it
+invariably does apply to each of the targets specified. If two conflicting
+rules apply, and both have recipes, that's an error.
+
+The static pattern rule can be better than an implicit rule for these
+reasons:
+
+@itemize @bullet
+@item
+You may wish to override the usual implicit rule for a few
+files whose names cannot be categorized syntactically but
+can be given in an explicit list.
+
+@item
+If you cannot be sure of the precise contents of the directories
+you are using, you may not be sure which other irrelevant files
+might lead @code{make} to use the wrong implicit rule. The choice
+might depend on the order in which the implicit rule search is done.
+With static pattern rules, there is no uncertainty: each rule applies
+to precisely the targets specified.
+@end itemize
+
+@node Double-Colon, Automatic Prerequisites, Static Pattern, Rules
+@section Double-Colon Rules
+@cindex double-colon rules
+@cindex rule, double-colon (@code{::})
+@cindex multiple rules for one target (@code{::})
+@cindex @code{::} rules (double-colon)
+
+@dfn{Double-colon} rules are explicit rules written with @samp{::}
+instead of @samp{:} after the target names. They are handled
+differently from ordinary rules when the same target appears in more
+than one rule. Pattern rules with double-colons have an entirely
+different meaning (@pxref{Match-Anything Rules}).
+
+When a target appears in multiple rules, all the rules must be the same
+type: all ordinary, or all double-colon. If they are double-colon, each
+of them is independent of the others. Each double-colon rule's recipe
+is executed if the target is older than any prerequisites of that rule.
+If there are no prerequisites for that rule, its recipe is always
+executed (even if the target already exists). This can result in
+executing none, any, or all of the double-colon rules.
+
+Double-colon rules with the same target are in fact completely separate
+from one another. Each double-colon rule is processed individually, just
+as rules with different targets are processed.
+
+The double-colon rules for a target are executed in the order they appear
+in the makefile. However, the cases where double-colon rules really make
+sense are those where the order of executing the recipes would not matter.
+
+Double-colon rules are somewhat obscure and not often very useful; they
+provide a mechanism for cases in which the method used to update a target
+differs depending on which prerequisite files caused the update, and such
+cases are rare.
+
+Each double-colon rule should specify a recipe; if it does not, an
+implicit rule will be used if one applies.
+@xref{Implicit Rules, ,Using Implicit Rules}.
+
+@node Automatic Prerequisites, , Double-Colon, Rules
+@section Generating Prerequisites Automatically
+@cindex prerequisites, automatic generation
+@cindex automatic generation of prerequisites
+@cindex generating prerequisites automatically
+
+In the makefile for a program, many of the rules you need to write often
+say only that some object file depends on some header
+file. For example, if @file{main.c} uses @file{defs.h} via an
+@code{#include}, you would write:
+
+@example
+main.o: defs.h
+@end example
+
+@noindent
+You need this rule so that @code{make} knows that it must remake
+@file{main.o} whenever @file{defs.h} changes. You can see that for a
+large program you would have to write dozens of such rules in your
+makefile. And, you must always be very careful to update the makefile
+every time you add or remove an @code{#include}.
+@cindex @code{#include}
+
+@cindex @code{-M} (to compiler)
+To avoid this hassle, most modern C compilers can write these rules for
+you, by looking at the @code{#include} lines in the source files.
+Usually this is done with the @samp{-M} option to the compiler.
+For example, the command:
+
+@example
+cc -M main.c
+@end example
+
+@noindent
+generates the output:
+
+@example
+main.o : main.c defs.h
+@end example
+
+@noindent
+Thus you no longer have to write all those rules yourself.
+The compiler will do it for you.
+
+Note that such a rule constitutes mentioning @file{main.o} in a
+makefile, so it can never be considered an intermediate file by
+implicit rule search. This means that @code{make} won't ever remove
+the file after using it; @pxref{Chained Rules, ,Chains of Implicit
+Rules}.
+
+@cindex @code{make depend}
+With old @code{make} programs, it was traditional practice to use this
+compiler feature to generate prerequisites on demand with a command like
+@samp{make depend}. That command would create a file @file{depend}
+containing all the automatically-generated prerequisites; then the
+makefile could use @code{include} to read them in (@pxref{Include}).
+
+In GNU @code{make}, the feature of remaking makefiles makes this
+practice obsolete---you need never tell @code{make} explicitly to
+regenerate the prerequisites, because it always regenerates any makefile
+that is out of date. @xref{Remaking Makefiles}.
+
+The practice we recommend for automatic prerequisite generation is to have
+one makefile corresponding to each source file. For each source file
+@file{@var{name}.c} there is a makefile @file{@var{name}.d} which lists
+what files the object file @file{@var{name}.o} depends on. That way
+only the source files that have changed need to be rescanned to produce
+the new prerequisites.
+
+Here is the pattern rule to generate a file of prerequisites (i.e., a makefile)
+called @file{@var{name}.d} from a C source file called @file{@var{name}.c}:
+
+@smallexample
+@group
+%.d: %.c
+ @@set -e; rm -f $@@; \
+ $(CC) -M $(CPPFLAGS) $< > $@@.$$$$; \
+ sed 's,\($*\)\.o[ :]*,\1.o $@@ : ,g' < $@@.$$$$ > $@@; \
+ rm -f $@@.$$$$
+@end group
+@end smallexample
+
+@noindent
+@xref{Pattern Rules}, for information on defining pattern rules. The
+@samp{-e} flag to the shell causes it to exit immediately if the
+@code{$(CC)} command (or any other command) fails (exits with a
+nonzero status).
+@cindex @code{-e} (shell flag)
+
+@cindex @code{-MM} (to GNU compiler)
+With the GNU C compiler, you may wish to use the @samp{-MM} flag instead
+of @samp{-M}. This omits prerequisites on system header files.
+@xref{Preprocessor Options, , Options Controlling the Preprocessor,
+gcc, Using GNU CC}, for details.
+
+@cindex @code{sed} (shell command)
+The purpose of the @code{sed} command is to translate (for example):
+
+@example
+main.o : main.c defs.h
+@end example
+
+@noindent
+into:
+
+@example
+main.o main.d : main.c defs.h
+@end example
+
+@noindent
+@cindex @code{.d}
+This makes each @samp{.d} file depend on all the source and header files
+that the corresponding @samp{.o} file depends on. @code{make} then
+knows it must regenerate the prerequisites whenever any of the source or
+header files changes.
+
+Once you've defined the rule to remake the @samp{.d} files,
+you then use the @code{include} directive to read them all in.
+@xref{Include}. For example:
+
+@example
+@group
+sources = foo.c bar.c
+
+include $(sources:.c=.d)
+@end group
+@end example
+
+@noindent
+(This example uses a substitution variable reference to translate the
+list of source files @samp{foo.c bar.c} into a list of prerequisite
+makefiles, @samp{foo.d bar.d}. @xref{Substitution Refs}, for full
+information on substitution references.) Since the @samp{.d} files are
+makefiles like any others, @code{make} will remake them as necessary
+with no further work from you. @xref{Remaking Makefiles}.
+
+Note that the @samp{.d} files contain target definitions; you should
+be sure to place the @code{include} directive @emph{after} the first,
+default goal in your makefiles or run the risk of having a random
+object file become the default goal.
+@xref{How Make Works}.
+
+@node Recipes, Using Variables, Rules, Top
+@chapter Writing Recipes in Rules
+@cindex recipes
+@cindex recipes, how to write
+@cindex writing recipes
+
+The recipe of a rule consists of one or more shell command lines to
+be executed, one at a time, in the order they appear. Typically, the
+result of executing these commands is that the target of the rule is
+brought up to date.
+
+Users use many different shell programs, but recipes in makefiles are
+always interpreted by @file{/bin/sh} unless the makefile specifies
+otherwise. @xref{Execution, ,Recipe Execution}.
+
+@menu
+* Recipe Syntax:: Recipe syntax features and pitfalls.
+* Echoing:: How to control when recipes are echoed.
+* Execution:: How recipes are executed.
+* Parallel:: How recipes can be executed in parallel.
+* Errors:: What happens after a recipe execution error.
+* Interrupts:: What happens when a recipe is interrupted.
+* Recursion:: Invoking @code{make} from makefiles.
+* Canned Recipes:: Defining canned recipes.
+* Empty Recipes:: Defining useful, do-nothing recipes.
+@end menu
+
+@node Recipe Syntax, Echoing, Recipes, Recipes
+@section Recipe Syntax
+@cindex recipe syntax
+@cindex syntax of recipe
+
+Makefiles have the unusual property that there are really two distinct
+syntaxes in one file. Most of the makefile uses @code{make} syntax
+(@pxref{Makefiles, ,Writing Makefiles}). However, recipes are meant
+to be interpreted by the shell and so they are written using shell
+syntax. The @code{make} program does not try to understand shell
+syntax: it performs only a very few specific translations on the
+content of the recipe before handing it to the shell.
+
+Each line in the recipe must start with a tab (or the first character
+in the value of the @code{.RECIPEPREFIX} variable; @pxref{Special
+Variables}), except that the first recipe line may be attached to the
+target-and-prerequisites line with a semicolon in between. @emph{Any}
+line in the makefile that begins with a tab and appears in a ``rule
+context'' (that is, after a rule has been started until another rule
+or variable definition) will be considered part of a recipe for that
+rule. Blank lines and lines of just comments may appear among the
+recipe lines; they are ignored.
+
+Some consequences of these rules include:
+
+@itemize @bullet
+@item
+A blank line that begins with a tab is not blank: it's an empty
+recipe (@pxref{Empty Recipes}).
+
+@cindex comments, in recipes
+@cindex recipes, comments in
+@cindex @code{#} (comments), in recipes
+@item
+A comment in a recipe is not a @code{make} comment; it will be
+passed to the shell as-is. Whether the shell treats it as a comment
+or not depends on your shell.
+
+@item
+A variable definition in a ``rule context'' which is indented by a tab
+as the first character on the line, will be considered part of a
+recipe, not a @code{make} variable definition, and passed to the
+shell.
+
+@item
+A conditional expression (@code{ifdef}, @code{ifeq},
+etc. @pxref{Conditional Syntax, ,Syntax of Conditionals}) in a ``rule
+context'' which is indented by a tab as the first character on the
+line, will be considered part of a recipe and be passed to the shell.
+
+@end itemize
+
+@menu
+* Splitting Recipe Lines:: Breaking long recipe lines for readability.
+* Variables in Recipes:: Using @code{make} variables in recipes.
+@end menu
+
+@node Splitting Recipe Lines, Variables in Recipes, Recipe Syntax, Recipe Syntax
+@subsection Splitting Recipe Lines
+@cindex recipes, splitting
+@cindex splitting recipes
+@cindex recipes, backslash (@code{\}) in
+@cindex recipes, quoting newlines in
+@cindex backslash (@code{\}), in recipes
+@cindex @code{\} (backslash), in recipes
+@cindex quoting newline, in recipes
+@cindex newline, quoting, in recipes
+
+One of the few ways in which @code{make} does interpret recipes is
+checking for a backslash just before the newline. As in normal
+makefile syntax, a single logical recipe line can be split into
+multiple physical lines in the makefile by placing a backslash before
+each newline. A sequence of lines like this is considered a single
+recipe line, and one instance of the shell will be invoked to run it.
+
+However, in contrast to how they are treated in other places in a
+makefile (@pxref{Splitting Lines, , Splitting Long Lines}),
+backslash/newline pairs are @emph{not} removed from the recipe. Both
+the backslash and the newline characters are preserved and passed to
+the shell. How the backslash/newline is interpreted depends on your
+shell. If the first character of the next line after the
+backslash/newline is the recipe prefix character (a tab by default;
+@pxref{Special Variables}), then that character (and only that
+character) is removed. Whitespace is never added to the recipe.
+
+For example, the recipe for the all target in this makefile:
+
+@example
+@group
+all :
+ @@echo no\
+space
+ @@echo no\
+ space
+ @@echo one \
+ space
+ @@echo one\
+ space
+@end group
+@end example
+
+@noindent
+consists of four separate shell commands where the output is:
+
+@example
+@group
+nospace
+nospace
+one space
+one space
+@end group
+@end example
+
+As a more complex example, this makefile:
+
+@example
+@group
+all : ; @@echo 'hello \
+ world' ; echo "hello \
+ world"
+@end group
+@end example
+
+@noindent
+will invoke one shell with a command of:
+
+@example
+@group
+echo 'hello \
+world' ; echo "hello \
+ world"
+@end group
+@end example
+
+@noindent
+which, according to shell quoting rules, will yield the following output:
+
+@example
+@group
+hello \
+world
+hello world
+@end group
+@end example
+
+@noindent
+Notice how the backslash/newline pair was removed inside the string
+quoted with double quotes (@code{"@dots{}"}), but not from the string
+quoted with single quotes (@code{'@dots{}'}). This is the way the
+default shell (@file{/bin/sh}) handles backslash/newline pairs. If
+you specify a different shell in your makefiles it may treat them
+differently.
+
+Sometimes you want to split a long line inside of single quotes, but
+you don't want the backslash/newline to appear in the quoted content.
+This is often the case when passing scripts to languages such as Perl,
+where extraneous backslashes inside the script can change its meaning
+or even be a syntax error. One simple way of handling this is to
+place the quoted string, or even the entire command, into a
+@code{make} variable then use the variable in the recipe. In this
+situation the newline quoting rules for makefiles will be used, and
+the backslash/newline will be removed. If we rewrite our example
+above using this method:
+
+@example
+@group
+HELLO = 'hello \
+world'
+
+all : ; @@echo $(HELLO)
+@end group
+@end example
+
+@noindent
+we will get output like this:
+
+@example
+@group
+hello world
+@end group
+@end example
+
+If you like, you can also use target-specific variables
+(@pxref{Target-specific, ,Target-specific Variable Values}) to obtain
+a tighter correspondence between the variable and the recipe that
+uses it.
+
+@node Variables in Recipes, , Splitting Recipe Lines, Recipe Syntax
+@subsection Using Variables in Recipes
+@cindex variable references in recipes
+@cindex recipes, using variables in
+
+The other way in which @code{make} processes recipes is by expanding
+any variable references in them (@pxref{Reference,Basics of Variable
+References}). This occurs after make has finished reading all the
+makefiles and the target is determined to be out of date; so, the
+recipes for targets which are not rebuilt are never expanded.
+
+Variable and function references in recipes have identical syntax and
+semantics to references elsewhere in the makefile. They also have the
+same quoting rules: if you want a dollar sign to appear in your
+recipe, you must double it (@samp{$$}). For shells like the default
+shell, that use dollar signs to introduce variables, it's important to
+keep clear in your mind whether the variable you want to reference is
+a @code{make} variable (use a single dollar sign) or a shell variable
+(use two dollar signs). For example:
+
+@example
+@group
+LIST = one two three
+all:
+ for i in $(LIST); do \
+ echo $$i; \
+ done
+@end group
+@end example
+
+@noindent
+results in the following command being passed to the shell:
+
+@example
+@group
+for i in one two three; do \
+ echo $i; \
+done
+@end group
+@end example
+
+@noindent
+which generates the expected result:
+
+@example
+@group
+one
+two
+three
+@end group
+@end example
+
+@node Echoing, Execution, Recipe Syntax, Recipes
+@section Recipe Echoing
+@cindex echoing of recipes
+@cindex silent operation
+@cindex @code{@@} (in recipes)
+@cindex recipes, echoing
+@cindex printing of recipes
+
+Normally @code{make} prints each line of the recipe before it is
+executed. We call this @dfn{echoing} because it gives the appearance
+that you are typing the lines yourself.
+
+When a line starts with @samp{@@}, the echoing of that line is suppressed.
+The @samp{@@} is discarded before the line is passed to the shell.
+Typically you would use this for a command whose only effect is to print
+something, such as an @code{echo} command to indicate progress through
+the makefile:
+
+@example
+@@echo About to make distribution files
+@end example
+
+@cindex @code{-n}
+@cindex @code{--just-print}
+@cindex @code{--dry-run}
+@cindex @code{--recon}
+When @code{make} is given the flag @samp{-n} or @samp{--just-print} it
+only echoes most recipes, without executing them. @xref{Options
+Summary, ,Summary of Options}. In this case even the recipe lines
+starting with @samp{@@} are printed. This flag is useful for finding
+out which recipes @code{make} thinks are necessary without actually
+doing them.
+
+@cindex @code{-s}
+@cindex @code{--silent}
+@cindex @code{--quiet}
+@findex .SILENT
+The @samp{-s} or @samp{--silent}
+flag to @code{make} prevents all echoing, as if all recipes
+started with @samp{@@}. A rule in the makefile for the special target
+@code{.SILENT} without prerequisites has the same effect
+(@pxref{Special Targets, ,Special Built-in Target Names}).
+@code{.SILENT} is essentially obsolete since @samp{@@} is more flexible.@refill
+
+@node Execution, Parallel, Echoing, Recipes
+@section Recipe Execution
+@cindex recipe, execution
+@cindex execution, of recipes
+@vindex @code{SHELL} @r{(recipe execution)}
+
+When it is time to execute recipes to update a target, they are
+executed by invoking a new sub-shell for each line of the recipe,
+unless the @code{.ONESHELL} special target is in effect
+(@pxref{One Shell, ,Using One Shell}) (In practice, @code{make} may
+take shortcuts that do not affect the results.)
+
+@cindex @code{cd} (shell command)
+@cindex shell variables, setting in recipes
+@cindex recipes setting shell variables
+@strong{Please note:} this implies that setting shell variables and
+invoking shell commands such as @code{cd} that set a context local to
+each process will not affect the following lines in the recipe.@footnote{On
+MS-DOS, the value of current working directory is @strong{global}, so
+changing it @emph{will} affect the following recipe lines on those
+systems.} If you want to use @code{cd} to affect the next statement,
+put both statements in a single recipe line. Then @code{make} will
+invoke one shell to run the entire line, and the shell will execute
+the statements in sequence. For example:
+
+@example
+foo : bar/lose
+ cd $(@@D) && gobble $(@@F) > ../$@@
+@end example
+
+@noindent
+Here we use the shell AND operator (@code{&&}) so that if the
+@code{cd} command fails, the script will fail without trying to invoke
+the @code{gobble} command in the wrong directory, which could cause
+problems (in this case it would certainly cause @file{../foo} to be
+truncated, at least).
+
+@menu
+* One Shell:: One shell for all lines in a recipe.
+* Choosing the Shell:: How @code{make} chooses the shell used
+ to run recipes.
+@end menu
+
+@node One Shell, Choosing the Shell, Execution, Execution
+@subsection Using One Shell
+@cindex recipe lines, single shell
+@cindex @code{.ONESHELL}, use of
+@findex .ONESHELL
+
+Sometimes you would prefer that all the lines in the recipe be passed
+to a single invocation of the shell. There are generally two
+situations where this is useful: first, it can improve performance in
+makefiles where recipes consist of many command lines, by avoiding
+extra processes. Second, you might want newlines to be included in
+your recipe command (for example perhaps you are using a very
+different interpreter as your @code{SHELL}). If the @code{.ONESHELL}
+special target appears anywhere in the makefile then @emph{all}
+recipe lines for each target will be provided to a single invocation
+of the shell. Newlines between recipe lines will be preserved. For
+example:
+
+@example
+.ONESHELL:
+foo : bar/lose
+ cd $(@@D)
+ gobble $(@@F) > ../$@@
+@end example
+
+@noindent
+would now work as expected even though the commands are on different
+recipe lines.
+
+If @code{.ONESHELL} is provided, then only the first line of the
+recipe will be checked for the special prefix characters (@samp{@@},
+@samp{-}, and @samp{+}). Subsequent lines will include the special
+characters in the recipe line when the @code{SHELL} is invoked. If
+you want your recipe to start with one of these special characters
+you'll need to arrange for them to not be the first characters on the
+first line, perhaps by adding a comment or similar. For example, this
+would be a syntax error in Perl because the first @samp{@@} is removed
+by make:
+
+@example
+.ONESHELL:
+SHELL = /usr/bin/perl
+.SHELLFLAGS = -e
+show :
+ @@f = qw(a b c);
+ print "@@f\n";
+@end example
+
+@noindent
+However, either of these alternatives would work properly:
+
+@example
+.ONESHELL:
+SHELL = /usr/bin/perl
+.SHELLFLAGS = -e
+show :
+ # Make sure "@@" is not the first character on the first line
+ @@f = qw(a b c);
+ print "@@f\n";
+@end example
+
+@noindent
+or
+
+@example
+.ONESHELL:
+SHELL = /usr/bin/perl
+.SHELLFLAGS = -e
+show :
+ my @@f = qw(a b c);
+ print "@@f\n";
+@end example
+
+As a special feature, if @code{SHELL} is determined to be a
+POSIX-style shell, the special prefix characters in ``internal''
+recipe lines will @emph{removed} before the recipe is processed. This
+feature is intended to allow existing makefiles to add the
+@code{.ONESHELL} special target and still run properly without
+extensive modifications. Since the special prefix characters are not
+legal at the beginning of a line in a POSIX shell script this is not a
+loss in functionality. For example, this works as expected:
+
+@example
+.ONESHELL:
+foo : bar/lose
+ @@cd $(@@D)
+ @@gobble $(@@F) > ../$@@
+@end example
+
+Even with this special feature, however, makefiles with
+@code{.ONESHELL} will behave differently in ways that could be
+noticeable. For example, normally if any line in the recipe fails,
+that causes the rule to fail and no more recipe lines are processed.
+Under @code{.ONESHELL} a failure of any but the final recipe line will
+not be noticed by @code{make}. You can modify @code{.SHELLFLAGS} to
+add the @code{-e} option to the shell which will cause any failure
+anywhere in the command line to cause the shell to fail, but this
+could itself cause your recipe to behave differently. Ultimately you
+may need to harden your recipe lines to allow them to work with
+@code{.ONESHELL}.
+
+@node Choosing the Shell, , One Shell, Execution
+@subsection Choosing the Shell
+@cindex shell, choosing the
+@cindex @code{SHELL}, value of
+@cindex @code{.SHELLFLAGS}, value of
+
+@vindex SHELL
+@vindex .SHELLFLAGS
+The program used as the shell is taken from the variable @code{SHELL}.
+If this variable is not set in your makefile, the program
+@file{/bin/sh} is used as the shell. The argument(s) passed to the
+shell are taken from the variable @code{.SHELLFLAGS}. The default
+value of @code{.SHELLFLAGS} is @code{-c} normally, or @code{-ec} in
+POSIX-conforming mode.
+
+@cindex environment, @code{SHELL} in
+Unlike most variables, the variable @code{SHELL} is never set from the
+environment. This is because the @code{SHELL} environment variable is
+used to specify your personal choice of shell program for interactive
+use. It would be very bad for personal choices like this to affect the
+functioning of makefiles. @xref{Environment, ,Variables from the
+Environment}.
+
+Furthermore, when you do set @code{SHELL} in your makefile that value
+is @emph{not} exported in the environment to recipe lines that
+@code{make} invokes. Instead, the value inherited from the user's
+environment, if any, is exported. You can override this behavior by
+explicitly exporting @code{SHELL} (@pxref{Variables/Recursion,
+,Communicating Variables to a Sub-@code{make}}), forcing it to be
+passed in the environment to recipe lines.
+
+@vindex @code{MAKESHELL} @r{(MS-DOS alternative to @code{SHELL})}
+However, on MS-DOS and MS-Windows the value of @code{SHELL} in the
+environment @strong{is} used, since on those systems most users do not
+set this variable, and therefore it is most likely set specifically to
+be used by @code{make}. On MS-DOS, if the setting of @code{SHELL} is
+not suitable for @code{make}, you can set the variable
+@code{MAKESHELL} to the shell that @code{make} should use; if set it
+will be used as the shell instead of the value of @code{SHELL}.
+
+@subsubheading Choosing a Shell in DOS and Windows
+@cindex shell, in DOS and Windows
+@cindex DOS, choosing a shell in
+@cindex Windows, choosing a shell in
+
+Choosing a shell in MS-DOS and MS-Windows is much more complex than on
+other systems.
+
+@vindex COMSPEC
+On MS-DOS, if @code{SHELL} is not set, the value of the variable
+@code{COMSPEC} (which is always set) is used instead.
+
+@cindex @code{SHELL}, MS-DOS specifics
+The processing of lines that set the variable @code{SHELL} in Makefiles
+is different on MS-DOS. The stock shell, @file{command.com}, is
+ridiculously limited in its functionality and many users of @code{make}
+tend to install a replacement shell. Therefore, on MS-DOS, @code{make}
+examines the value of @code{SHELL}, and changes its behavior based on
+whether it points to a Unix-style or DOS-style shell. This allows
+reasonable functionality even if @code{SHELL} points to
+@file{command.com}.
+
+If @code{SHELL} points to a Unix-style shell, @code{make} on MS-DOS
+additionally checks whether that shell can indeed be found; if not, it
+ignores the line that sets @code{SHELL}. In MS-DOS, GNU @code{make}
+searches for the shell in the following places:
+
+@enumerate
+@item
+In the precise place pointed to by the value of @code{SHELL}. For
+example, if the makefile specifies @samp{SHELL = /bin/sh}, @code{make}
+will look in the directory @file{/bin} on the current drive.
+
+@item
+In the current directory.
+
+@item
+In each of the directories in the @code{PATH} variable, in order.
+
+@end enumerate
+
+In every directory it examines, @code{make} will first look for the
+specific file (@file{sh} in the example above). If this is not found,
+it will also look in that directory for that file with one of the known
+extensions which identify executable files. For example @file{.exe},
+@file{.com}, @file{.bat}, @file{.btm}, @file{.sh}, and some others.
+
+If any of these attempts is successful, the value of @code{SHELL} will
+be set to the full pathname of the shell as found. However, if none of
+these is found, the value of @code{SHELL} will not be changed, and thus
+the line that sets it will be effectively ignored. This is so
+@code{make} will only support features specific to a Unix-style shell if
+such a shell is actually installed on the system where @code{make} runs.
+
+Note that this extended search for the shell is limited to the cases
+where @code{SHELL} is set from the Makefile; if it is set in the
+environment or command line, you are expected to set it to the full
+pathname of the shell, exactly as things are on Unix.
+
+The effect of the above DOS-specific processing is that a Makefile that
+contains @samp{SHELL = /bin/sh} (as many Unix makefiles do), will work
+on MS-DOS unaltered if you have e.g.@: @file{sh.exe} installed in some
+directory along your @code{PATH}.
+
+@vindex SHELL
+@vindex .SHELLFLAGS
+
+@node Parallel, Errors, Execution, Recipes
+@section Parallel Execution
+@cindex recipes, execution in parallel
+@cindex parallel execution
+@cindex execution, in parallel
+@cindex job slots
+@cindex @code{-j}
+@cindex @code{--jobs}
+
+GNU @code{make} knows how to execute several recipes at once.
+Normally, @code{make} will execute only one recipe at a time, waiting
+for it to finish before executing the next. However, the @samp{-j} or
+@samp{--jobs} option tells @code{make} to execute many recipes
+simultaneously. You can inhibit parallelism in a particular makefile
+with the @code{.NOTPARALLEL} pseudo-target (@pxref{Special
+Targets,Special Built-in Target Names}).@refill
+
+On MS-DOS, the @samp{-j} option has no effect, since that system doesn't
+support multi-processing.
+
+If the @samp{-j} option is followed by an integer, this is the number of
+recipes to execute at once; this is called the number of @dfn{job slots}.
+If there is nothing looking like an integer after the @samp{-j} option,
+there is no limit on the number of job slots. The default number of job
+slots is one, which means serial execution (one thing at a time).
+
+Handling recursive @code{make} invocations raises issues for parallel
+execution. For more information on this, see @ref{Options/Recursion,
+,Communicating Options to a Sub-@code{make}}.
+
+If a recipe fails (is killed by a signal or exits with a nonzero
+status), and errors are not ignored for that recipe (@pxref{Errors,
+,Errors in Recipes}), the remaining recipe lines to remake the same
+target will not be run. If a recipe fails and the @samp{-k} or
+@samp{--keep-going} option was not given (@pxref{Options Summary,
+,Summary of Options}), @code{make} aborts execution. If make
+terminates for any reason (including a signal) with child processes
+running, it waits for them to finish before actually exiting.@refill
+
+@cindex load average
+@cindex limiting jobs based on load
+@cindex jobs, limiting based on load
+@cindex @code{-l} (load average)
+@cindex @code{--max-load}
+@cindex @code{--load-average}
+When the system is heavily loaded, you will probably want to run fewer jobs
+than when it is lightly loaded. You can use the @samp{-l} option to tell
+@code{make} to limit the number of jobs to run at once, based on the load
+average. The @samp{-l} or @samp{--max-load}
+option is followed by a floating-point number. For
+example,
+
+@example
+-l 2.5
+@end example
+
+@noindent
+will not let @code{make} start more than one job if the load average is
+above 2.5. The @samp{-l} option with no following number removes the
+load limit, if one was given with a previous @samp{-l} option.@refill
+
+More precisely, when @code{make} goes to start up a job, and it already has
+at least one job running, it checks the current load average; if it is not
+lower than the limit given with @samp{-l}, @code{make} waits until the load
+average goes below that limit, or until all the other jobs finish.
+
+By default, there is no load limit.
+
+@menu
+* Parallel Output:: Handling output during parallel execution
+* Parallel Input:: Handling input during parallel execution
+@end menu
+
+@node Parallel Output, Parallel Input, Parallel, Parallel
+@subsection Output During Parallel Execution
+@cindex output during parallel execution
+@cindex parallel execution, output during
+
+When running several recipes in parallel the output from each
+recipe appears as soon as it is generated, with the result that
+messages from different recipes may be interspersed, sometimes even
+appearing on the same line. This can make reading the output very
+difficult.
+
+@cindex @code{--output-sync}
+@cindex @code{-O}
+To avoid this you can use the @samp{--output-sync} (@samp{-O}) option.
+This option instructs @code{make} to save the output from the commands
+it invokes and print it all once the commands are completed.
+Additionally, if there are multiple recursive @code{make} invocations
+running in parallel, they will communicate so that only one of them is
+generating output at a time.
+
+If working directory printing is enabled (@pxref{-w Option, ,The
+@samp{--print-directory} Option}), the enter/leave messages are
+printed around each output grouping. If you prefer not to see these
+messages add the @samp{--no-print-directory} option to @code{MAKEFLAGS}.
+
+There are four levels of granularity when synchronizing output,
+specified by giving an argument to the option (e.g., @samp{-Oline} or
+@samp{--output-sync=recurse}).
+
+@table @code
+@item none
+This is the default: all output is sent directly as it is generated and
+no synchronization is performed.
+
+@item line
+Output from each individual line of the recipe is grouped and printed
+as soon as that line is complete. If a recipe consists of multiple
+lines, they may be interspersed with lines from other recipes.
+
+@item target
+Output from the entire recipe for each target is grouped and printed
+once the target is complete. This is the default if the
+@code{--output-sync} or @code{-O} option is given with no argument.
+
+@item recurse
+Output from each recursive invocation of @code{make} is grouped and
+printed once the recursive invocation is complete.
+
+@end table
+
+Regardless of the mode chosen, the total build time will be the same.
+The only difference is in how the output appears.
+
+The @samp{target} and @samp{recurse} modes both collect the output of
+the entire recipe of a target and display it uninterrupted when the
+recipe completes. The difference between them is in how recipes that
+contain recursive invocations of @code{make} are treated
+(@pxref{Recursion, ,Recursive Use of @code{make}}). For all recipes
+which have no recursive lines, the @samp{target} and @samp{recurse}
+modes behave identically.
+
+If the @samp{recurse} mode is chosen, recipes that contain recursive
+@code{make} invocations are treated the same as other targets: the
+output from the recipe, including the output from the recursive
+@code{make}, is saved and printed after the entire recipe is complete.
+This ensures output from all the targets built by a given recursive
+@code{make} instance are grouped together, which may make the output
+easier to understand. However it also leads to long periods of time
+during the build where no output is seen, followed by large bursts of
+output. If you are not watching the build as it proceeds, but instead
+viewing a log of the build after the fact, this may be the best option
+for you.
+
+If you are watching the output, the long gaps of quiet during the
+build can be frustrating. The @samp{target} output synchronization
+mode detects when @code{make} is going to be invoked recursively,
+using the standard methods, and it will not synchronize the output of
+those lines. The recursive @code{make} will perform the
+synchronization for its targets and the output from each will be
+displayed immediately when it completes. Be aware that output from
+recursive lines of the recipe are not synchronized (for example if
+the recursive line prints a message before running @code{make}, that
+message will not be synchronized).
+
+The @samp{line} mode can be useful for front-ends that are watching
+the output of @code{make} to track when recipes are started and
+completed.
+
+Some programs invoked by @code{make} may behave differently if they
+determine they're writing output to a terminal versus a file (often
+described as ``interactive'' vs. ``non-interactive'' modes). For
+example, many programs that can display colorized output will not do
+so if they determine they are not writing to a terminal. If your
+makefile invokes a program like this then using the output
+synchronization options will cause the program to believe it's running
+in ``non-interactive'' mode even though the output will ultimately go
+to the terminal.
+
+@node Parallel Input, , Parallel Output, Parallel
+@subsection Input During Parallel Execution
+@cindex input during parallel execution
+@cindex parallel execution, input during
+@cindex standard input
+
+Two processes cannot both take input from the same device at the same
+time. To make sure that only one recipe tries to take input from the
+terminal at once, @code{make} will invalidate the standard input
+streams of all but one running recipe. If another recipe attempts to
+read from standard input it will usually incur a fatal error (a
+@samp{Broken pipe} signal).
+@cindex broken pipe
+
+It is unpredictable which recipe will have a valid standard input stream
+(which will come from the terminal, or wherever you redirect the standard
+input of @code{make}). The first recipe run will always get it first, and
+the first recipe started after that one finishes will get it next, and so
+on.
+
+We will change how this aspect of @code{make} works if we find a better
+alternative. In the mean time, you should not rely on any recipe using
+standard input at all if you are using the parallel execution feature; but
+if you are not using this feature, then standard input works normally in
+all recipes.
+
+@node Errors, Interrupts, Parallel, Recipes
+@section Errors in Recipes
+@cindex errors (in recipes)
+@cindex recipes, errors in
+@cindex exit status (errors)
+
+After each shell invocation returns, @code{make} looks at its exit
+status. If the shell completed successfully (the exit status is
+zero), the next line in the recipe is executed in a new shell; after
+the last line is finished, the rule is finished.
+
+If there is an error (the exit status is nonzero), @code{make} gives up on
+the current rule, and perhaps on all rules.
+
+Sometimes the failure of a certain recipe line does not indicate a problem.
+For example, you may use the @code{mkdir} command to ensure that a
+directory exists. If the directory already exists, @code{mkdir} will
+report an error, but you probably want @code{make} to continue regardless.
+
+@cindex @code{-} (in recipes)
+To ignore errors in a recipe line, write a @samp{-} at the beginning
+of the line's text (after the initial tab). The @samp{-} is discarded
+before the line is passed to the shell for execution.
+
+For example,
+
+@example
+@group
+clean:
+ -rm -f *.o
+@end group
+@end example
+@cindex @code{rm} (shell command)
+
+@noindent
+This causes @code{make} to continue even if @code{rm} is unable to
+remove a file.
+
+@cindex @code{-i}
+@cindex @code{--ignore-errors}
+@findex .IGNORE
+When you run @code{make} with the @samp{-i} or @samp{--ignore-errors}
+flag, errors are ignored in all recipes of all rules. A rule in the
+makefile for the special target @code{.IGNORE} has the same effect, if
+there are no prerequisites. These ways of ignoring errors are obsolete
+because @samp{-} is more flexible.
+
+When errors are to be ignored, because of either a @samp{-} or the
+@samp{-i} flag, @code{make} treats an error return just like success,
+except that it prints out a message that tells you the status code
+the shell exited with, and says that the error has been ignored.
+
+When an error happens that @code{make} has not been told to ignore,
+it implies that the current target cannot be correctly remade, and neither
+can any other that depends on it either directly or indirectly. No further
+recipes will be executed for these targets, since their preconditions
+have not been achieved.
+
+
+@cindex @code{-k}
+@cindex @code{--keep-going}
+Normally @code{make} gives up immediately in this circumstance, returning a
+nonzero status. However, if the @samp{-k} or @samp{--keep-going}
+flag is specified, @code{make}
+continues to consider the other prerequisites of the pending targets,
+remaking them if necessary, before it gives up and returns nonzero status.
+For example, after an error in compiling one object file, @samp{make -k}
+will continue compiling other object files even though it already knows
+that linking them will be impossible. @xref{Options Summary, ,Summary of Options}.
+
+The usual behavior assumes that your purpose is to get the specified
+targets up to date; once @code{make} learns that this is impossible, it
+might as well report the failure immediately. The @samp{-k} option says
+that the real purpose is to test as many of the changes made in the
+program as possible, perhaps to find several independent problems so
+that you can correct them all before the next attempt to compile. This
+is why Emacs' @code{compile} command passes the @samp{-k} flag by
+default.
+@cindex Emacs (@code{M-x compile})
+
+@findex .DELETE_ON_ERROR
+@cindex deletion of target files
+@cindex removal of target files
+@cindex target, deleting on error
+Usually when a recipe line fails, if it has changed the target file at all,
+the file is corrupted and cannot be used---or at least it is not
+completely updated. Yet the file's time stamp says that it is now up to
+date, so the next time @code{make} runs, it will not try to update that
+file. The situation is just the same as when the shell is killed by a
+signal; @pxref{Interrupts}. So generally the right thing to do is to
+delete the target file if the recipe fails after beginning to change
+the file. @code{make} will do this if @code{.DELETE_ON_ERROR} appears
+as a target. This is almost always what you want @code{make} to do, but
+it is not historical practice; so for compatibility, you must explicitly
+request it.
+
+@node Interrupts, Recursion, Errors, Recipes
+@section Interrupting or Killing @code{make}
+@cindex interrupt
+@cindex signal
+@cindex deletion of target files
+@cindex removal of target files
+@cindex target, deleting on interrupt
+@cindex killing (interruption)
+
+If @code{make} gets a fatal signal while a shell is executing, it may
+delete the target file that the recipe was supposed to update. This is
+done if the target file's last-modification time has changed since
+@code{make} first checked it.
+
+The purpose of deleting the target is to make sure that it is remade from
+scratch when @code{make} is next run. Why is this? Suppose you type
+@kbd{Ctrl-c} while a compiler is running, and it has begun to write an
+object file @file{foo.o}. The @kbd{Ctrl-c} kills the compiler, resulting
+in an incomplete file whose last-modification time is newer than the source
+file @file{foo.c}. But @code{make} also receives the @kbd{Ctrl-c} signal
+and deletes this incomplete file. If @code{make} did not do this, the next
+invocation of @code{make} would think that @file{foo.o} did not require
+updating---resulting in a strange error message from the linker when it
+tries to link an object file half of which is missing.
+
+@findex .PRECIOUS
+You can prevent the deletion of a target file in this way by making the
+special target @code{.PRECIOUS} depend on it. Before remaking a target,
+@code{make} checks to see whether it appears on the prerequisites of
+@code{.PRECIOUS}, and thereby decides whether the target should be deleted
+if a signal happens. Some reasons why you might do this are that the
+target is updated in some atomic fashion, or exists only to record a
+modification-time (its contents do not matter), or must exist at all
+times to prevent other sorts of trouble.
+
+@node Recursion, Canned Recipes, Interrupts, Recipes
+@section Recursive Use of @code{make}
+@cindex recursion
+@cindex subdirectories, recursion for
+
+Recursive use of @code{make} means using @code{make} as a command in a
+makefile. This technique is useful when you want separate makefiles for
+various subsystems that compose a larger system. For example, suppose you
+have a sub-directory @file{subdir} which has its own makefile, and you would
+like the containing directory's makefile to run @code{make} on the
+sub-directory. You can do it by writing this:
+
+@example
+subsystem:
+ cd subdir && $(MAKE)
+@end example
+
+@noindent
+or, equivalently, this (@pxref{Options Summary, ,Summary of Options}):
+
+@example
+subsystem:
+ $(MAKE) -C subdir
+@end example
+@cindex @code{-C}
+@cindex @code{--directory}
+
+You can write recursive @code{make} commands just by copying this example,
+but there are many things to know about how they work and why, and about
+how the sub-@code{make} relates to the top-level @code{make}. You may
+also find it useful to declare targets that invoke recursive
+@code{make} commands as @samp{.PHONY} (for more discussion on when
+this is useful, see @ref{Phony Targets}).
+
+@vindex @code{CURDIR}
+For your convenience, when GNU @code{make} starts (after it has
+processed any @code{-C} options) it sets the variable @code{CURDIR} to
+the pathname of the current working directory. This value is never
+touched by @code{make} again: in particular note that if you include
+files from other directories the value of @code{CURDIR} does not
+change. The value has the same precedence it would have if it were
+set in the makefile (by default, an environment variable @code{CURDIR}
+will not override this value). Note that setting this variable has no
+impact on the operation of @code{make} (it does not cause @code{make}
+to change its working directory, for example).
+
+@menu
+* MAKE Variable:: The special effects of using @samp{$(MAKE)}.
+* Variables/Recursion:: How to communicate variables to a sub-@code{make}.
+* Options/Recursion:: How to communicate options to a sub-@code{make}.
+* -w Option:: How the @samp{-w} or @samp{--print-directory} option
+ helps debug use of recursive @code{make} commands.
+@end menu
+
+@node MAKE Variable, Variables/Recursion, Recursion, Recursion
+@subsection How the @code{MAKE} Variable Works
+@vindex MAKE
+@cindex recursion, and @code{MAKE} variable
+
+Recursive @code{make} commands should always use the variable @code{MAKE},
+not the explicit command name @samp{make}, as shown here:
+
+@example
+@group
+subsystem:
+ cd subdir && $(MAKE)
+@end group
+@end example
+
+The value of this variable is the file name with which @code{make} was
+invoked. If this file name was @file{/bin/make}, then the recipe executed
+is @samp{cd subdir && /bin/make}. If you use a special version of
+@code{make} to run the top-level makefile, the same special version will be
+executed for recursive invocations.
+@cindex @code{cd} (shell command)
+
+@cindex +, and recipes
+As a special feature, using the variable @code{MAKE} in the recipe of
+a rule alters the effects of the @samp{-t} (@samp{--touch}), @samp{-n}
+(@samp{--just-print}), or @samp{-q} (@w{@samp{--question}}) option.
+Using the @code{MAKE} variable has the same effect as using a @samp{+}
+character at the beginning of the recipe line. @xref{Instead of
+Execution, ,Instead of Executing the Recipes}. This special feature
+is only enabled if the @code{MAKE} variable appears directly in the
+recipe: it does not apply if the @code{MAKE} variable is referenced
+through expansion of another variable. In the latter case you must
+use the @samp{+} token to get these special effects.@refill
+
+Consider the command @samp{make -t} in the above example. (The
+@samp{-t} option marks targets as up to date without actually running
+any recipes; see @ref{Instead of Execution}.) Following the usual
+definition of @samp{-t}, a @samp{make -t} command in the example would
+create a file named @file{subsystem} and do nothing else. What you
+really want it to do is run @samp{@w{cd subdir &&} @w{make -t}}; but
+that would require executing the recipe, and @samp{-t} says not to
+execute recipes.@refill
+@cindex @code{-t}, and recursion
+@cindex recursion, and @code{-t}
+@cindex @code{--touch}, and recursion
+
+The special feature makes this do what you want: whenever a recipe
+line of a rule contains the variable @code{MAKE}, the flags @samp{-t},
+@samp{-n} and @samp{-q} do not apply to that line. Recipe lines
+containing @code{MAKE} are executed normally despite the presence of a
+flag that causes most recipes not to be run. The usual
+@code{MAKEFLAGS} mechanism passes the flags to the sub-@code{make}
+(@pxref{Options/Recursion, ,Communicating Options to a
+Sub-@code{make}}), so your request to touch the files, or print the
+recipes, is propagated to the subsystem.@refill
+
+@node Variables/Recursion, Options/Recursion, MAKE Variable, Recursion
+@subsection Communicating Variables to a Sub-@code{make}
+@cindex sub-@code{make}
+@cindex environment, and recursion
+@cindex exporting variables
+@cindex variables, environment
+@cindex variables, exporting
+@cindex recursion, and environment
+@cindex recursion, and variables
+
+Variable values of the top-level @code{make} can be passed to the
+sub-@code{make} through the environment by explicit request. These
+variables are defined in the sub-@code{make} as defaults, but they do
+not override variables defined in the makefile used by
+the sub-@code{make} unless you use the @samp{-e} switch (@pxref{Options
+Summary, ,Summary of Options}).@refill
+
+To pass down, or @dfn{export}, a variable, @code{make} adds the
+variable and its value to the environment for running each line of the
+recipe. The sub-@code{make}, in turn, uses the environment to
+initialize its table of variable values. @xref{Environment,
+,Variables from the Environment}.
+
+Except by explicit request, @code{make} exports a variable only if it
+is either defined in the environment initially or set on the command
+line, and if its name consists only of letters, numbers, and underscores.
+Some shells cannot cope with environment variable names consisting of
+characters other than letters, numbers, and underscores.
+
+@cindex SHELL, exported value
+The value of the @code{make} variable @code{SHELL} is not exported.
+Instead, the value of the @code{SHELL} variable from the invoking
+environment is passed to the sub-@code{make}. You can force
+@code{make} to export its value for @code{SHELL} by using the
+@code{export} directive, described below. @xref{Choosing the Shell}.
+
+The special variable @code{MAKEFLAGS} is always exported (unless you
+unexport it). @code{MAKEFILES} is exported if you set it to anything.
+
+@code{make} automatically passes down variable values that were defined
+on the command line, by putting them in the @code{MAKEFLAGS} variable.
+@iftex
+See the next section.
+@end iftex
+@ifnottex
+@xref{Options/Recursion}.
+@end ifnottex
+
+Variables are @emph{not} normally passed down if they were created by
+default by @code{make} (@pxref{Implicit Variables, ,Variables Used by
+Implicit Rules}). The sub-@code{make} will define these for
+itself.@refill
+
+@findex export
+If you want to export specific variables to a sub-@code{make}, use the
+@code{export} directive, like this:
+
+@example
+export @var{variable} @dots{}
+@end example
+
+@noindent
+@findex unexport
+If you want to @emph{prevent} a variable from being exported, use the
+@code{unexport} directive, like this:
+
+@example
+unexport @var{variable} @dots{}
+@end example
+
+@noindent
+In both of these forms, the arguments to @code{export} and
+@code{unexport} are expanded, and so could be variables or functions
+which expand to a (list of) variable names to be (un)exported.
+
+As a convenience, you can define a variable and export it at the same
+time by doing:
+
+@example
+export @var{variable} = value
+@end example
+
+@noindent
+has the same result as:
+
+@example
+@var{variable} = value
+export @var{variable}
+@end example
+
+@noindent
+and
+
+@example
+export @var{variable} := value
+@end example
+
+@noindent
+has the same result as:
+
+@example
+@var{variable} := value
+export @var{variable}
+@end example
+
+Likewise,
+
+@example
+export @var{variable} += value
+@end example
+
+@noindent
+is just like:
+
+@example
+@var{variable} += value
+export @var{variable}
+@end example
+
+@noindent
+@xref{Appending, ,Appending More Text to Variables}.
+
+You may notice that the @code{export} and @code{unexport} directives
+work in @code{make} in the same way they work in the shell, @code{sh}.
+
+If you want all variables to be exported by default, you can use
+@code{export} by itself:
+
+@example
+export
+@end example
+
+@noindent
+This tells @code{make} that variables which are not explicitly mentioned
+in an @code{export} or @code{unexport} directive should be exported.
+Any variable given in an @code{unexport} directive will still @emph{not}
+be exported. If you use @code{export} by itself to export variables by
+default, variables whose names contain characters other than
+alphanumerics and underscores will not be exported unless specifically
+mentioned in an @code{export} directive.@refill
+
+@findex .EXPORT_ALL_VARIABLES
+The behavior elicited by an @code{export} directive by itself was the
+default in older versions of GNU @code{make}. If your makefiles depend
+on this behavior and you want to be compatible with old versions of
+@code{make}, you can write a rule for the special target
+@code{.EXPORT_ALL_VARIABLES} instead of using the @code{export} directive.
+This will be ignored by old @code{make}s, while the @code{export}
+directive will cause a syntax error.@refill
+@cindex compatibility in exporting
+
+Likewise, you can use @code{unexport} by itself to tell @code{make}
+@emph{not} to export variables by default. Since this is the default
+behavior, you would only need to do this if @code{export} had been used
+by itself earlier (in an included makefile, perhaps). You
+@strong{cannot} use @code{export} and @code{unexport} by themselves to
+have variables exported for some recipes and not for others. The last
+@code{export} or @code{unexport} directive that appears by itself
+determines the behavior for the entire run of @code{make}.@refill
+
+@vindex MAKELEVEL
+@cindex recursion, level of
+As a special feature, the variable @code{MAKELEVEL} is changed when it
+is passed down from level to level. This variable's value is a string
+which is the depth of the level as a decimal number. The value is
+@samp{0} for the top-level @code{make}; @samp{1} for a sub-@code{make},
+@samp{2} for a sub-sub-@code{make}, and so on. The incrementation
+happens when @code{make} sets up the environment for a recipe.@refill
+
+The main use of @code{MAKELEVEL} is to test it in a conditional
+directive (@pxref{Conditionals, ,Conditional Parts of Makefiles}); this
+way you can write a makefile that behaves one way if run recursively and
+another way if run directly by you.@refill
+
+@vindex MAKEFILES
+You can use the variable @code{MAKEFILES} to cause all sub-@code{make}
+commands to use additional makefiles. The value of @code{MAKEFILES} is
+a whitespace-separated list of file names. This variable, if defined in
+the outer-level makefile, is passed down through the environment; then
+it serves as a list of extra makefiles for the sub-@code{make} to read
+before the usual or specified ones. @xref{MAKEFILES Variable, ,The
+Variable @code{MAKEFILES}}.@refill
+
+@node Options/Recursion, -w Option, Variables/Recursion, Recursion
+@subsection Communicating Options to a Sub-@code{make}
+@cindex options, and recursion
+@cindex recursion, and options
+
+@vindex MAKEFLAGS
+Flags such as @samp{-s} and @samp{-k} are passed automatically to the
+sub-@code{make} through the variable @code{MAKEFLAGS}. This variable is
+set up automatically by @code{make} to contain the flag letters that
+@code{make} received. Thus, if you do @w{@samp{make -ks}} then
+@code{MAKEFLAGS} gets the value @samp{ks}.@refill
+
+As a consequence, every sub-@code{make} gets a value for @code{MAKEFLAGS}
+in its environment. In response, it takes the flags from that value and
+processes them as if they had been given as arguments.
+@xref{Options Summary, ,Summary of Options}.
+
+@cindex command line variable definitions, and recursion
+@cindex variables, command line, and recursion
+@cindex recursion, and command line variable definitions
+Likewise variables defined on the command line are passed to the
+sub-@code{make} through @code{MAKEFLAGS}. Words in the value of
+@code{MAKEFLAGS} that contain @samp{=}, @code{make} treats as variable
+definitions just as if they appeared on the command line.
+@xref{Overriding, ,Overriding Variables}.
+
+@cindex @code{-C}, and recursion
+@cindex @code{-f}, and recursion
+@cindex @code{-o}, and recursion
+@cindex @code{-W}, and recursion
+@cindex @code{--directory}, and recursion
+@cindex @code{--file}, and recursion
+@cindex @code{--old-file}, and recursion
+@cindex @code{--assume-old}, and recursion
+@cindex @code{--assume-new}, and recursion
+@cindex @code{--new-file}, and recursion
+@cindex recursion, and @code{-C}
+@cindex recursion, and @code{-f}
+@cindex recursion, and @code{-o}
+@cindex recursion, and @code{-W}
+The options @samp{-C}, @samp{-f}, @samp{-o}, and @samp{-W} are not put
+into @code{MAKEFLAGS}; these options are not passed down.@refill
+
+@cindex @code{-j}, and recursion
+@cindex @code{--jobs}, and recursion
+@cindex recursion, and @code{-j}
+@cindex job slots, and recursion
+The @samp{-j} option is a special case (@pxref{Parallel, ,Parallel Execution}).
+If you set it to some numeric value @samp{N} and your operating system
+supports it (most any UNIX system will; others typically won't), the
+parent @code{make} and all the sub-@code{make}s will communicate to
+ensure that there are only @samp{N} jobs running at the same time
+between them all. Note that any job that is marked recursive
+(@pxref{Instead of Execution, ,Instead of Executing Recipes})
+doesn't count against the total jobs (otherwise we could get @samp{N}
+sub-@code{make}s running and have no slots left over for any real work!)
+
+If your operating system doesn't support the above communication, then
+no @samp{-j} is added to @code{MAKEFLAGS}, so that sub-@code{make}s
+run in non-parallel mode. If the @w{@samp{-j}} option were passed down
+to sub-@code{make}s you would get many more jobs running in parallel
+than you asked for. If you give @samp{-j} with no numeric argument,
+meaning to run as many jobs as possible in parallel, this is passed
+down, since multiple infinities are no more than one.@refill
+
+If you do not want to pass the other flags down, you must change the
+value of @code{MAKEFLAGS}, like this:
+
+@example
+subsystem:
+ cd subdir && $(MAKE) MAKEFLAGS=
+@end example
+
+@vindex MAKEOVERRIDES
+The command line variable definitions really appear in the variable
+@code{MAKEOVERRIDES}, and @code{MAKEFLAGS} contains a reference to this
+variable. If you do want to pass flags down normally, but don't want to
+pass down the command line variable definitions, you can reset
+@code{MAKEOVERRIDES} to empty, like this:
+
+@example
+MAKEOVERRIDES =
+@end example
+
+@noindent
+@cindex Arg list too long
+@cindex E2BIG
+This is not usually useful to do. However, some systems have a small
+fixed limit on the size of the environment, and putting so much
+information into the value of @code{MAKEFLAGS} can exceed it. If you
+see the error message @samp{Arg list too long}, this may be the problem.
+@findex .POSIX
+@cindex POSIX
+(For strict compliance with POSIX.2, changing @code{MAKEOVERRIDES} does
+not affect @code{MAKEFLAGS} if the special target @samp{.POSIX} appears
+in the makefile. You probably do not care about this.)
+
+@vindex MFLAGS
+A similar variable @code{MFLAGS} exists also, for historical
+compatibility. It has the same value as @code{MAKEFLAGS} except that it
+does not contain the command line variable definitions, and it always
+begins with a hyphen unless it is empty (@code{MAKEFLAGS} begins with a
+hyphen only when it begins with an option that has no single-letter
+version, such as @samp{--warn-undefined-variables}). @code{MFLAGS} was
+traditionally used explicitly in the recursive @code{make} command, like
+this:
+
+@example
+subsystem:
+ cd subdir && $(MAKE) $(MFLAGS)
+@end example
+
+@noindent
+but now @code{MAKEFLAGS} makes this usage redundant. If you want your
+makefiles to be compatible with old @code{make} programs, use this
+technique; it will work fine with more modern @code{make} versions too.
+
+@cindex setting options from environment
+@cindex options, setting from environment
+@cindex setting options in makefiles
+@cindex options, setting in makefiles
+The @code{MAKEFLAGS} variable can also be useful if you want to have
+certain options, such as @samp{-k} (@pxref{Options Summary, ,Summary of
+Options}), set each time you run @code{make}. You simply put a value for
+@code{MAKEFLAGS} in your environment. You can also set @code{MAKEFLAGS} in
+a makefile, to specify additional flags that should also be in effect for
+that makefile. (Note that you cannot use @code{MFLAGS} this way. That
+variable is set only for compatibility; @code{make} does not interpret a
+value you set for it in any way.)
+
+When @code{make} interprets the value of @code{MAKEFLAGS} (either from the
+environment or from a makefile), it first prepends a hyphen if the value
+does not already begin with one. Then it chops the value into words
+separated by blanks, and parses these words as if they were options given
+on the command line (except that @samp{-C}, @samp{-f}, @samp{-h},
+@samp{-o}, @samp{-W}, and their long-named versions are ignored; and there
+is no error for an invalid option).
+
+If you do put @code{MAKEFLAGS} in your environment, you should be sure not
+to include any options that will drastically affect the actions of
+@code{make} and undermine the purpose of makefiles and of @code{make}
+itself. For instance, the @samp{-t}, @samp{-n}, and @samp{-q} options, if
+put in one of these variables, could have disastrous consequences and would
+certainly have at least surprising and probably annoying effects.@refill
+
+If you'd like to run other implementations of @code{make} in addition
+to GNU @code{make}, and hence do not want to add GNU
+@code{make}-specific flags to the @code{MAKEFLAGS} variable, you can
+add them to the @code{GNUMAKEFLAGS} variable instead. This variable
+is parsed just before @code{MAKEFLAGS}, in the same way as
+@code{MAKEFLAGS}. When @code{make} constructs @code{MAKEFLAGS} to
+pass to a recursive @code{make} it will include all flags, even those
+taken from @code{GNUMAKEFLAGS}. As a result, after parsing
+@code{GNUMAKEFLAGS} GNU @code{make} sets this variable to the empty
+string to avoid duplicating flags during recursion.
+
+It's best to use @code{GNUMAKEFLAGS} only with flags which won't
+materially change the behavior of your makefiles. If your makefiles
+require GNU make anyway then simply use @code{MAKEFLAGS}. Flags such
+as @samp{--no-print-directory} or @samp{--output-sync} may be
+appropriate for @code{GNUMAKEFLAGS}.
+
+@node -w Option, , Options/Recursion, Recursion
+@subsection The @samp{--print-directory} Option
+@cindex directories, printing them
+@cindex printing directories
+@cindex recursion, and printing directories
+
+If you use several levels of recursive @code{make} invocations, the
+@samp{-w} or @w{@samp{--print-directory}} option can make the output a
+lot easier to understand by showing each directory as @code{make}
+starts processing it and as @code{make} finishes processing it. For
+example, if @samp{make -w} is run in the directory @file{/u/gnu/make},
+@code{make} will print a line of the form:@refill
+
+@example
+make: Entering directory `/u/gnu/make'.
+@end example
+
+@noindent
+before doing anything else, and a line of the form:
+
+@example
+make: Leaving directory `/u/gnu/make'.
+@end example
+
+@noindent
+when processing is completed.
+
+@cindex @code{-C}, and @code{-w}
+@cindex @code{--directory}, and @code{--print-directory}
+@cindex recursion, and @code{-w}
+@cindex @code{-w}, and @code{-C}
+@cindex @code{-w}, and recursion
+@cindex @code{--print-directory}, and @code{--directory}
+@cindex @code{--print-directory}, and recursion
+@cindex @code{--no-print-directory}
+@cindex @code{--print-directory}, disabling
+@cindex @code{-w}, disabling
+Normally, you do not need to specify this option because @samp{make}
+does it for you: @samp{-w} is turned on automatically when you use the
+@samp{-C} option, and in sub-@code{make}s. @code{make} will not
+automatically turn on @samp{-w} if you also use @samp{-s}, which says to
+be silent, or if you use @samp{--no-print-directory} to explicitly
+disable it.
+
+@node Canned Recipes, Empty Recipes, Recursion, Recipes
+@section Defining Canned Recipes
+@cindex canned recipes
+@cindex recipes, canned
+@cindex sequences of commands
+@cindex commands, sequences of
+
+When the same sequence of commands is useful in making various
+targets, you can define it as a canned sequence with the @code{define}
+directive, and refer to the canned sequence from the recipes for those
+targets. The canned sequence is actually a variable, so the name must
+not conflict with other variable names.
+
+Here is an example of defining a canned recipe:
+
+@example
+define run-yacc =
+yacc $(firstword $^)
+mv y.tab.c $@@
+endef
+@end example
+@cindex @code{yacc}
+
+@noindent
+Here @code{run-yacc} is the name of the variable being defined;
+@code{endef} marks the end of the definition; the lines in between are the
+commands. The @code{define} directive does not expand variable references
+and function calls in the canned sequence; the @samp{$} characters,
+parentheses, variable names, and so on, all become part of the value of the
+variable you are defining.
+@xref{Multi-Line, ,Defining Multi-Line Variables},
+for a complete explanation of @code{define}.
+
+The first command in this example runs Yacc on the first prerequisite of
+whichever rule uses the canned sequence. The output file from Yacc is
+always named @file{y.tab.c}. The second command moves the output to the
+rule's target file name.
+
+To use the canned sequence, substitute the variable into the recipe of a
+rule. You can substitute it like any other variable
+(@pxref{Reference, ,Basics of Variable References}).
+Because variables defined by @code{define} are recursively expanded
+variables, all the variable references you wrote inside the @code{define}
+are expanded now. For example:
+
+@example
+foo.c : foo.y
+ $(run-yacc)
+@end example
+
+@noindent
+@samp{foo.y} will be substituted for the variable @samp{$^} when it occurs in
+@code{run-yacc}'s value, and @samp{foo.c} for @samp{$@@}.@refill
+
+This is a realistic example, but this particular one is not needed in
+practice because @code{make} has an implicit rule to figure out these
+commands based on the file names involved
+(@pxref{Implicit Rules, ,Using Implicit Rules}).
+
+@cindex @@, and @code{define}
+@cindex -, and @code{define}
+@cindex +, and @code{define}
+In recipe execution, each line of a canned sequence is treated just as
+if the line appeared on its own in the rule, preceded by a tab. In
+particular, @code{make} invokes a separate sub-shell for each line. You
+can use the special prefix characters that affect command lines
+(@samp{@@}, @samp{-}, and @samp{+}) on each line of a canned sequence.
+@xref{Recipes, ,Writing Recipes in Rules}.
+For example, using this canned sequence:
+
+@example
+define frobnicate =
+@@echo "frobnicating target $@@"
+frob-step-1 $< -o $@@-step-1
+frob-step-2 $@@-step-1 -o $@@
+endef
+@end example
+
+@noindent
+@code{make} will not echo the first line, the @code{echo} command.
+But it @emph{will} echo the following two recipe lines.
+
+On the other hand, prefix characters on the recipe line that refers to
+a canned sequence apply to every line in the sequence. So the rule:
+
+@example
+frob.out: frob.in
+ @@$(frobnicate)
+@end example
+
+@noindent
+does not echo @emph{any} recipe lines.
+(@xref{Echoing, ,Recipe Echoing}, for a full explanation of @samp{@@}.)
+
+@node Empty Recipes, , Canned Recipes, Recipes
+@section Using Empty Recipes
+@cindex empty recipes
+@cindex recipes, empty
+
+It is sometimes useful to define recipes which do nothing. This is done
+simply by giving a recipe that consists of nothing but whitespace. For
+example:
+
+@example
+target: ;
+@end example
+
+@noindent
+defines an empty recipe for @file{target}. You could also use a line
+beginning with a recipe prefix character to define an empty recipe,
+but this would be confusing because such a line looks empty.
+
+@findex .DEFAULT@r{, and empty recipes}
+You may be wondering why you would want to define a recipe that does
+nothing. One reason this is useful is to prevent a target from
+getting implicit recipes (from implicit rules or the @code{.DEFAULT}
+special target; @pxref{Implicit Rules} and @pxref{Last Resort,
+,Defining Last-Resort Default Rules}).@refill
+
+Empty recipes can also be used to avoid errors for targets that will
+be created as a side-effect of another recipe: if the target does not
+exist the empty recipe ensures that @code{make} won't complain that it
+doesn't know how to build the target, and @code{make} will assume the
+target is out of date.
+
+You may be inclined to define empty recipes for targets that are not
+actual files, but only exist so that their prerequisites can be
+remade. However, this is not the best way to do that, because the
+prerequisites may not be remade properly if the target file actually
+does exist. @xref{Phony Targets, ,Phony Targets}, for a better way to
+do this.
+
+@node Using Variables, Conditionals, Recipes, Top
+@chapter How to Use Variables
+@cindex variable
+@cindex value
+@cindex recursive variable expansion
+@cindex simple variable expansion
+
+A @dfn{variable} is a name defined in a makefile to represent a string
+of text, called the variable's @dfn{value}. These values are
+substituted by explicit request into targets, prerequisites, recipes,
+and other parts of the makefile. (In some other versions of @code{make},
+variables are called @dfn{macros}.)
+@cindex macro
+
+Variables and functions in all parts of a makefile are expanded when
+read, except for in recipes, the right-hand sides of variable
+definitions using @samp{=}, and the bodies of variable definitions
+using the @code{define} directive.@refill
+
+Variables can represent lists of file names, options to pass to compilers,
+programs to run, directories to look in for source files, directories to
+write output in, or anything else you can imagine.
+
+A variable name may be any sequence of characters not containing
+@samp{:}, @samp{#}, @samp{=}, or whitespace. However, variable names
+containing characters other than letters, numbers, and underscores
+should be considered carefully, as in some shells they cannot be
+passed through the environment to a sub-@code{make}
+(@pxref{Variables/Recursion, ,Communicating Variables to a
+Sub-@code{make}}). Variable names beginning with @samp{.} and an
+uppercase letter may be given special meaning in future versions of
+@code{make}.
+
+Variable names are case-sensitive. The names @samp{foo}, @samp{FOO},
+and @samp{Foo} all refer to different variables.
+
+It is traditional to use upper case letters in variable names, but we
+recommend using lower case letters for variable names that serve internal
+purposes in the makefile, and reserving upper case for parameters that
+control implicit rules or for parameters that the user should override with
+command options (@pxref{Overriding, ,Overriding Variables}).
+
+A few variables have names that are a single punctuation character or
+just a few characters. These are the @dfn{automatic variables}, and
+they have particular specialized uses. @xref{Automatic Variables}.
+
+@menu
+* Reference:: How to use the value of a variable.
+* Flavors:: Variables come in two flavors.
+* Advanced:: Advanced features for referencing a variable.
+* Values:: All the ways variables get their values.
+* Setting:: How to set a variable in the makefile.
+* Appending:: How to append more text to the old value
+ of a variable.
+* Override Directive:: How to set a variable in the makefile even if
+ the user has set it with a command argument.
+* Multi-Line:: An alternate way to set a variable
+ to a multi-line string.
+* Undefine Directive:: How to undefine a variable so that it appears
+ as if it was never set.
+* Environment:: Variable values can come from the environment.
+* Target-specific:: Variable values can be defined on a per-target
+ basis.
+* Pattern-specific:: Target-specific variable values can be applied
+ to a group of targets that match a pattern.
+* Suppressing Inheritance:: Suppress inheritance of variables.
+* Special Variables:: Variables with special meaning or behavior.
+@end menu
+
+@node Reference, Flavors, Using Variables, Using Variables
+@section Basics of Variable References
+@cindex variables, how to reference
+@cindex reference to variables
+@cindex @code{$}, in variable reference
+@cindex dollar sign (@code{$}), in variable reference
+
+To substitute a variable's value, write a dollar sign followed by the name
+of the variable in parentheses or braces: either @samp{$(foo)} or
+@samp{$@{foo@}} is a valid reference to the variable @code{foo}. This
+special significance of @samp{$} is why you must write @samp{$$} to have
+the effect of a single dollar sign in a file name or recipe.
+
+Variable references can be used in any context: targets, prerequisites,
+recipes, most directives, and new variable values. Here is an
+example of a common case, where a variable holds the names of all the
+object files in a program:
+
+@example
+@group
+objects = program.o foo.o utils.o
+program : $(objects)
+ cc -o program $(objects)
+
+$(objects) : defs.h
+@end group
+@end example
+
+Variable references work by strict textual substitution. Thus, the rule
+
+@example
+@group
+foo = c
+prog.o : prog.$(foo)
+ $(foo)$(foo) -$(foo) prog.$(foo)
+@end group
+@end example
+
+@noindent
+could be used to compile a C program @file{prog.c}. Since spaces before
+the variable value are ignored in variable assignments, the value of
+@code{foo} is precisely @samp{c}. (Don't actually write your makefiles
+this way!)
+
+A dollar sign followed by a character other than a dollar sign,
+open-parenthesis or open-brace treats that single character as the
+variable name. Thus, you could reference the variable @code{x} with
+@samp{$x}. However, this practice is strongly discouraged, except in
+the case of the automatic variables (@pxref{Automatic Variables}).
+
+@node Flavors, Advanced, Reference, Using Variables
+@section The Two Flavors of Variables
+@cindex flavors of variables
+@cindex recursive variable expansion
+@cindex variables, flavors
+@cindex recursively expanded variables
+@cindex variables, recursively expanded
+
+There are two ways that a variable in GNU @code{make} can have a value;
+we call them the two @dfn{flavors} of variables. The two flavors are
+distinguished in how they are defined and in what they do when expanded.
+
+@cindex =
+The first flavor of variable is a @dfn{recursively expanded} variable.
+Variables of this sort are defined by lines using @samp{=}
+(@pxref{Setting, ,Setting Variables}) or by the @code{define} directive
+(@pxref{Multi-Line, ,Defining Multi-Line Variables}). The value you specify
+is installed verbatim; if it contains references to other variables,
+these references are expanded whenever this variable is substituted (in
+the course of expanding some other string). When this happens, it is
+called @dfn{recursive expansion}.@refill
+
+For example,
+
+@example
+foo = $(bar)
+bar = $(ugh)
+ugh = Huh?
+
+all:;echo $(foo)
+@end example
+
+@noindent
+will echo @samp{Huh?}: @samp{$(foo)} expands to @samp{$(bar)} which
+expands to @samp{$(ugh)} which finally expands to @samp{Huh?}.@refill
+
+This flavor of variable is the only sort supported by most other
+versions of @code{make}. It has its advantages and its disadvantages.
+An advantage (most would say) is that:
+
+@example
+CFLAGS = $(include_dirs) -O
+include_dirs = -Ifoo -Ibar
+@end example
+
+@noindent
+will do what was intended: when @samp{CFLAGS} is expanded in a recipe,
+it will expand to @samp{-Ifoo -Ibar -O}. A major disadvantage is that you
+cannot append something on the end of a variable, as in
+
+@example
+CFLAGS = $(CFLAGS) -O
+@end example
+
+@noindent
+because it will cause an infinite loop in the variable expansion.
+(Actually @code{make} detects the infinite loop and reports an error.)
+@cindex loops in variable expansion
+@cindex variables, loops in expansion
+
+Another disadvantage is that any functions
+(@pxref{Functions, ,Functions for Transforming Text})
+referenced in the definition will be executed every time the variable is
+expanded. This makes @code{make} run slower; worse, it causes the
+@code{wildcard} and @code{shell} functions to give unpredictable results
+because you cannot easily control when they are called, or even how many
+times.
+
+To avoid all the problems and inconveniences of recursively expanded
+variables, there is another flavor: simply expanded variables.
+
+@cindex simply expanded variables
+@cindex variables, simply expanded
+@cindex :=
+@cindex ::=
+@dfn{Simply expanded variables} are defined by lines using @samp{:=}
+or @samp{::=} (@pxref{Setting, ,Setting Variables}). Both forms are
+equivalent in GNU @code{make}; however only the @samp{::=} form is
+described by the POSIX standard (support for @samp{::=} was added to
+the POSIX standard in 2012, so older versions of @code{make} won't
+accept this form either).
+
+The value of a simply expanded variable is scanned
+once and for all, expanding any references to other variables and
+functions, when the variable is defined. The actual value of the simply
+expanded variable is the result of expanding the text that you write.
+It does not contain any references to other variables; it contains their
+values @emph{as of the time this variable was defined}. Therefore,
+
+@example
+x := foo
+y := $(x) bar
+x := later
+@end example
+
+@noindent
+is equivalent to
+
+@example
+y := foo bar
+x := later
+@end example
+
+When a simply expanded variable is referenced, its value is substituted
+verbatim.
+
+Here is a somewhat more complicated example, illustrating the use of
+@samp{:=} in conjunction with the @code{shell} function.
+(@xref{Shell Function, , The @code{shell} Function}.) This example
+also shows use of the variable @code{MAKELEVEL}, which is changed
+when it is passed down from level to level.
+(@xref{Variables/Recursion, , Communicating Variables to a
+Sub-@code{make}}, for information about @code{MAKELEVEL}.)
+
+@vindex MAKELEVEL
+@vindex MAKE
+@example
+@group
+ifeq (0,$@{MAKELEVEL@})
+whoami := $(shell whoami)
+host-type := $(shell arch)
+MAKE := $@{MAKE@} host-type=$@{host-type@} whoami=$@{whoami@}
+endif
+@end group
+@end example
+
+@noindent
+An advantage of this use of @samp{:=} is that a typical
+`descend into a directory' recipe then looks like this:
+
+@example
+@group
+$@{subdirs@}:
+ $@{MAKE@} -C $@@ all
+@end group
+@end example
+
+Simply expanded variables generally make complicated makefile programming
+more predictable because they work like variables in most programming
+languages. They allow you to redefine a variable using its own value (or
+its value processed in some way by one of the expansion functions) and to
+use the expansion functions much more efficiently
+(@pxref{Functions, ,Functions for Transforming Text}).
+
+@cindex spaces, in variable values
+@cindex whitespace, in variable values
+@cindex variables, spaces in values
+You can also use them to introduce controlled leading whitespace into
+variable values. Leading whitespace characters are discarded from your
+input before substitution of variable references and function calls;
+this means you can include leading spaces in a variable value by
+protecting them with variable references, like this:
+
+@example
+nullstring :=
+space := $(nullstring) # end of the line
+@end example
+
+@noindent
+Here the value of the variable @code{space} is precisely one space. The
+comment @w{@samp{# end of the line}} is included here just for clarity.
+Since trailing space characters are @emph{not} stripped from variable
+values, just a space at the end of the line would have the same effect
+(but be rather hard to read). If you put whitespace at the end of a
+variable value, it is a good idea to put a comment like that at the end
+of the line to make your intent clear. Conversely, if you do @emph{not}
+want any whitespace characters at the end of your variable value, you
+must remember not to put a random comment on the end of the line after
+some whitespace, such as this:
+
+@example
+dir := /foo/bar # directory to put the frobs in
+@end example
+
+@noindent
+Here the value of the variable @code{dir} is @w{@samp{/foo/bar }}
+(with four trailing spaces), which was probably not the intention.
+(Imagine something like @w{@samp{$(dir)/file}} with this definition!)
+
+@cindex conditional variable assignment
+@cindex variables, conditional assignment
+@cindex ?=
+There is another assignment operator for variables, @samp{?=}. This
+is called a conditional variable assignment operator, because it only
+has an effect if the variable is not yet defined. This statement:
+
+@example
+FOO ?= bar
+@end example
+
+@noindent
+is exactly equivalent to this
+(@pxref{Origin Function, ,The @code{origin} Function}):
+
+@example
+ifeq ($(origin FOO), undefined)
+ FOO = bar
+endif
+@end example
+
+Note that a variable set to an empty value is still defined, so
+@samp{?=} will not set that variable.
+
+@node Advanced, Values, Flavors, Using Variables
+@section Advanced Features for Reference to Variables
+@cindex reference to variables
+
+This section describes some advanced features you can use to reference
+variables in more flexible ways.
+
+@menu
+* Substitution Refs:: Referencing a variable with
+ substitutions on the value.
+* Computed Names:: Computing the name of the variable to refer to.
+@end menu
+
+@node Substitution Refs, Computed Names, Advanced, Advanced
+@subsection Substitution References
+@cindex modified variable reference
+@cindex substitution variable reference
+@cindex variables, modified reference
+@cindex variables, substitution reference
+
+@cindex variables, substituting suffix in
+@cindex suffix, substituting in variables
+A @dfn{substitution reference} substitutes the value of a variable with
+alterations that you specify. It has the form
+@samp{$(@var{var}:@var{a}=@var{b})} (or
+@samp{$@{@var{var}:@var{a}=@var{b}@}}) and its meaning is to take the value
+of the variable @var{var}, replace every @var{a} at the end of a word with
+@var{b} in that value, and substitute the resulting string.
+
+When we say ``at the end of a word'', we mean that @var{a} must appear
+either followed by whitespace or at the end of the value in order to be
+replaced; other occurrences of @var{a} in the value are unaltered. For
+example:@refill
+
+@example
+foo := a.o b.o c.o
+bar := $(foo:.o=.c)
+@end example
+
+@noindent
+sets @samp{bar} to @samp{a.c b.c c.c}. @xref{Setting, ,Setting Variables}.
+
+A substitution reference is actually an abbreviation for use of the
+@code{patsubst} expansion function (@pxref{Text Functions, ,Functions for String Substitution and Analysis}). We provide
+substitution references as well as @code{patsubst} for compatibility with
+other implementations of @code{make}.
+
+@findex patsubst
+Another type of substitution reference lets you use the full power of
+the @code{patsubst} function. It has the same form
+@samp{$(@var{var}:@var{a}=@var{b})} described above, except that now
+@var{a} must contain a single @samp{%} character. This case is
+equivalent to @samp{$(patsubst @var{a},@var{b},$(@var{var}))}.
+@xref{Text Functions, ,Functions for String Substitution and Analysis},
+for a description of the @code{patsubst} function.@refill
+
+@example
+@group
+@exdent For example:
+
+foo := a.o b.o c.o
+bar := $(foo:%.o=%.c)
+@end group
+@end example
+
+@noindent
+sets @samp{bar} to @samp{a.c b.c c.c}.
+
+@node Computed Names, , Substitution Refs, Advanced
+@subsection Computed Variable Names
+@cindex nested variable reference
+@cindex computed variable name
+@cindex variables, computed names
+@cindex variables, nested references
+@cindex variables, @samp{$} in name
+@cindex @code{$}, in variable name
+@cindex dollar sign (@code{$}), in variable name
+
+Computed variable names are a complicated concept needed only for
+sophisticated makefile programming. For most purposes you need not
+consider them, except to know that making a variable with a dollar sign
+in its name might have strange results. However, if you are the type
+that wants to understand everything, or you are actually interested in
+what they do, read on.
+
+Variables may be referenced inside the name of a variable. This is
+called a @dfn{computed variable name} or a @dfn{nested variable
+reference}. For example,
+
+@example
+x = y
+y = z
+a := $($(x))
+@end example
+
+@noindent
+defines @code{a} as @samp{z}: the @samp{$(x)} inside @samp{$($(x))} expands
+to @samp{y}, so @samp{$($(x))} expands to @samp{$(y)} which in turn expands
+to @samp{z}. Here the name of the variable to reference is not stated
+explicitly; it is computed by expansion of @samp{$(x)}. The reference
+@samp{$(x)} here is nested within the outer variable reference.
+
+The previous example shows two levels of nesting, but any number of levels
+is possible. For example, here are three levels:
+
+@example
+x = y
+y = z
+z = u
+a := $($($(x)))
+@end example
+
+@noindent
+Here the innermost @samp{$(x)} expands to @samp{y}, so @samp{$($(x))}
+expands to @samp{$(y)} which in turn expands to @samp{z}; now we have
+@samp{$(z)}, which becomes @samp{u}.
+
+References to recursively-expanded variables within a variable name are
+re-expanded in the usual fashion. For example:
+
+@example
+x = $(y)
+y = z
+z = Hello
+a := $($(x))
+@end example
+
+@noindent
+defines @code{a} as @samp{Hello}: @samp{$($(x))} becomes @samp{$($(y))}
+which becomes @samp{$(z)} which becomes @samp{Hello}.
+
+Nested variable references can also contain modified references and
+function invocations (@pxref{Functions, ,Functions for Transforming Text}),
+just like any other reference.
+For example, using the @code{subst} function
+(@pxref{Text Functions, ,Functions for String Substitution and Analysis}):
+
+@example
+@group
+x = variable1
+variable2 := Hello
+y = $(subst 1,2,$(x))
+z = y
+a := $($($(z)))
+@end group
+@end example
+
+@noindent
+eventually defines @code{a} as @samp{Hello}. It is doubtful that anyone
+would ever want to write a nested reference as convoluted as this one, but
+it works: @samp{$($($(z)))} expands to @samp{$($(y))} which becomes
+@samp{$($(subst 1,2,$(x)))}. This gets the value @samp{variable1} from
+@code{x} and changes it by substitution to @samp{variable2}, so that the
+entire string becomes @samp{$(variable2)}, a simple variable reference
+whose value is @samp{Hello}.@refill
+
+A computed variable name need not consist entirely of a single variable
+reference. It can contain several variable references, as well as some
+invariant text. For example,
+
+@example
+@group
+a_dirs := dira dirb
+1_dirs := dir1 dir2
+@end group
+
+@group
+a_files := filea fileb
+1_files := file1 file2
+@end group
+
+@group
+ifeq "$(use_a)" "yes"
+a1 := a
+else
+a1 := 1
+endif
+@end group
+
+@group
+ifeq "$(use_dirs)" "yes"
+df := dirs
+else
+df := files
+endif
+
+dirs := $($(a1)_$(df))
+@end group
+@end example
+
+@noindent
+will give @code{dirs} the same value as @code{a_dirs}, @code{1_dirs},
+@code{a_files} or @code{1_files} depending on the settings of @code{use_a}
+and @code{use_dirs}.@refill
+
+Computed variable names can also be used in substitution references:
+
+@example
+@group
+a_objects := a.o b.o c.o
+1_objects := 1.o 2.o 3.o
+
+sources := $($(a1)_objects:.o=.c)
+@end group
+@end example
+
+@noindent
+defines @code{sources} as either @samp{a.c b.c c.c} or @samp{1.c 2.c 3.c},
+depending on the value of @code{a1}.
+
+The only restriction on this sort of use of nested variable references
+is that they cannot specify part of the name of a function to be called.
+This is because the test for a recognized function name is done before
+the expansion of nested references. For example,
+
+@example
+@group
+ifdef do_sort
+func := sort
+else
+func := strip
+endif
+@end group
+
+@group
+bar := a d b g q c
+@end group
+
+@group
+foo := $($(func) $(bar))
+@end group
+@end example
+
+@noindent
+attempts to give @samp{foo} the value of the variable @samp{sort a d b g
+q c} or @samp{strip a d b g q c}, rather than giving @samp{a d b g q c}
+as the argument to either the @code{sort} or the @code{strip} function.
+This restriction could be removed in the future if that change is shown
+to be a good idea.
+
+You can also use computed variable names in the left-hand side of a
+variable assignment, or in a @code{define} directive, as in:
+
+@example
+dir = foo
+$(dir)_sources := $(wildcard $(dir)/*.c)
+define $(dir)_print =
+lpr $($(dir)_sources)
+endef
+@end example
+
+@noindent
+This example defines the variables @samp{dir}, @samp{foo_sources}, and
+@samp{foo_print}.
+
+Note that @dfn{nested variable references} are quite different from
+@dfn{recursively expanded variables}
+(@pxref{Flavors, ,The Two Flavors of Variables}), though both are
+used together in complex ways when doing makefile programming.@refill
+
+@node Values, Setting, Advanced, Using Variables
+@section How Variables Get Their Values
+@cindex variables, how they get their values
+@cindex value, how a variable gets it
+
+Variables can get values in several different ways:
+
+@itemize @bullet
+@item
+You can specify an overriding value when you run @code{make}.
+@xref{Overriding, ,Overriding Variables}.
+
+@item
+You can specify a value in the makefile, either
+with an assignment (@pxref{Setting, ,Setting Variables}) or with a
+verbatim definition (@pxref{Multi-Line, ,Defining Multi-Line Variables}).@refill
+
+@item
+Variables in the environment become @code{make} variables.
+@xref{Environment, ,Variables from the Environment}.
+
+@item
+Several @dfn{automatic} variables are given new values for each rule.
+Each of these has a single conventional use.
+@xref{Automatic Variables}.
+
+@item
+Several variables have constant initial values.
+@xref{Implicit Variables, ,Variables Used by Implicit Rules}.
+@end itemize
+
+@node Setting, Appending, Values, Using Variables
+@section Setting Variables
+@cindex setting variables
+@cindex variables, setting
+@cindex =
+@cindex :=
+@cindex ::=
+@cindex ?=
+@cindex !=
+
+To set a variable from the makefile, write a line starting with the
+variable name followed by @samp{=}, @samp{:=}, or @samp{::=}. Whatever
+follows the @samp{=}, @samp{:=}, or @samp{::=} on the line becomes the
+value. For example,
+
+@example
+objects = main.o foo.o bar.o utils.o
+@end example
+
+@noindent
+defines a variable named @code{objects}. Whitespace around the variable
+name and immediately after the @samp{=} is ignored.
+
+Variables defined with @samp{=} are @dfn{recursively expanded}
+variables. Variables defined with @samp{:=} or @samp{::=} are
+@dfn{simply expanded} variables; these definitions can contain
+variable references which will be expanded before the definition is
+made. @xref{Flavors, ,The Two Flavors of Variables}.
+
+The variable name may contain function and variable references, which
+are expanded when the line is read to find the actual variable name to use.
+
+There is no limit on the length of the value of a variable except the
+amount of memory on the computer. You can split the value of a
+variable into multiple physical lines for readability
+(@pxref{Splitting Lines, ,Splitting Long Lines}).
+
+Most variable names are considered to have the empty string as a value if
+you have never set them. Several variables have built-in initial values
+that are not empty, but you can set them in the usual ways
+(@pxref{Implicit Variables, ,Variables Used by Implicit Rules}).
+Several special variables are set
+automatically to a new value for each rule; these are called the
+@dfn{automatic} variables (@pxref{Automatic Variables}).
+
+If you'd like a variable to be set to a value only if it's not already
+set, then you can use the shorthand operator @samp{?=} instead of
+@samp{=}. These two settings of the variable @samp{FOO} are identical
+(@pxref{Origin Function, ,The @code{origin} Function}):
+
+@example
+FOO ?= bar
+@end example
+
+@noindent
+and
+
+@example
+ifeq ($(origin FOO), undefined)
+FOO = bar
+endif
+@end example
+
+The shell assignment operator @samp{!=} can be used to execute a
+shell script and set a variable to its output. This operator first
+evaluates the right-hand side, then passes that result to the shell
+for execution. If the result of the execution ends in a newline, that
+one newline is removed; all other newlines are replaced by spaces.
+The resulting string is then placed into the named
+recursively-expanded variable. For example:
+
+@example
+hash != printf '\043'
+file_list != find . -name '*.c'
+@end example
+
+If the result of the execution could produce a @code{$}, and you don't
+intend what follows that to be interpreted as a make variable or
+function reference, then you must replace every @code{$} with
+@code{$$} as part of the execution. Alternatively, you can set a
+simply expanded variable to the result of running a program using the
+@code{shell} function call. @xref{Shell Function, , The @code{shell}
+Function}. For example:
+
+@example
+hash := $(shell printf '\043')
+var := $(shell find . -name "*.c")
+@end example
+
+As with the @code{shell} function, the exit status of the just-invoked
+shell script is stored in the @code{.SHELLSTATUS} variable.
+
+
+@node Appending, Override Directive, Setting, Using Variables
+@section Appending More Text to Variables
+@cindex +=
+@cindex appending to variables
+@cindex variables, appending to
+
+Often it is useful to add more text to the value of a variable already defined.
+You do this with a line containing @samp{+=}, like this:
+
+@example
+objects += another.o
+@end example
+
+@noindent
+This takes the value of the variable @code{objects}, and adds the text
+@samp{another.o} to it (preceded by a single space). Thus:
+
+@example
+objects = main.o foo.o bar.o utils.o
+objects += another.o
+@end example
+
+@noindent
+sets @code{objects} to @samp{main.o foo.o bar.o utils.o another.o}.
+
+Using @samp{+=} is similar to:
+
+@example
+objects = main.o foo.o bar.o utils.o
+objects := $(objects) another.o
+@end example
+
+@noindent
+but differs in ways that become important when you use more complex values.
+
+When the variable in question has not been defined before, @samp{+=}
+acts just like normal @samp{=}: it defines a recursively-expanded
+variable. However, when there @emph{is} a previous definition, exactly
+what @samp{+=} does depends on what flavor of variable you defined
+originally. @xref{Flavors, ,The Two Flavors of Variables}, for an
+explanation of the two flavors of variables.
+
+When you add to a variable's value with @samp{+=}, @code{make} acts
+essentially as if you had included the extra text in the initial
+definition of the variable. If you defined it first with @samp{:=} or
+@samp{::=}, making it a simply-expanded variable, @samp{+=} adds to
+that simply-expanded definition, and expands the new text before
+appending it to the old value just as @samp{:=} does (see
+@ref{Setting, ,Setting Variables}, for a full explanation of
+@samp{:=} or @samp{::=}). In fact,
+
+@example
+variable := value
+variable += more
+@end example
+
+@noindent
+is exactly equivalent to:
+
+@noindent
+@example
+variable := value
+variable := $(variable) more
+@end example
+
+On the other hand, when you use @samp{+=} with a variable that you defined
+first to be recursively-expanded using plain @samp{=}, @code{make} does
+something a bit different. Recall that when you define a
+recursively-expanded variable, @code{make} does not expand the value you set
+for variable and function references immediately. Instead it stores the text
+verbatim, and saves these variable and function references to be expanded
+later, when you refer to the new variable (@pxref{Flavors, ,The Two Flavors
+of Variables}). When you use @samp{+=} on a recursively-expanded variable,
+it is this unexpanded text to which @code{make} appends the new text you
+specify.
+
+@example
+@group
+variable = value
+variable += more
+@end group
+@end example
+
+@noindent
+is roughly equivalent to:
+
+@example
+@group
+temp = value
+variable = $(temp) more
+@end group
+@end example
+
+@noindent
+except that of course it never defines a variable called @code{temp}.
+The importance of this comes when the variable's old value contains
+variable references. Take this common example:
+
+@example
+CFLAGS = $(includes) -O
+@dots{}
+CFLAGS += -pg # enable profiling
+@end example
+
+@noindent
+The first line defines the @code{CFLAGS} variable with a reference to another
+variable, @code{includes}. (@code{CFLAGS} is used by the rules for C
+compilation; @pxref{Catalogue of Rules, ,Catalogue of Built-In Rules}.)
+Using @samp{=} for the definition makes @code{CFLAGS} a recursively-expanded
+variable, meaning @w{@samp{$(includes) -O}} is @emph{not} expanded when
+@code{make} processes the definition of @code{CFLAGS}. Thus, @code{includes}
+need not be defined yet for its value to take effect. It only has to be
+defined before any reference to @code{CFLAGS}. If we tried to append to the
+value of @code{CFLAGS} without using @samp{+=}, we might do it like this:
+
+@example
+CFLAGS := $(CFLAGS) -pg # enable profiling
+@end example
+
+@noindent
+This is pretty close, but not quite what we want. Using @samp{:=}
+redefines @code{CFLAGS} as a simply-expanded variable; this means
+@code{make} expands the text @w{@samp{$(CFLAGS) -pg}} before setting the
+variable. If @code{includes} is not yet defined, we get @w{@samp{ -O
+-pg}}, and a later definition of @code{includes} will have no effect.
+Conversely, by using @samp{+=} we set @code{CFLAGS} to the
+@emph{unexpanded} value @w{@samp{$(includes) -O -pg}}. Thus we preserve
+the reference to @code{includes}, so if that variable gets defined at
+any later point, a reference like @samp{$(CFLAGS)} still uses its
+value.
+
+@node Override Directive, Multi-Line, Appending, Using Variables
+@section The @code{override} Directive
+@findex override
+@cindex overriding with @code{override}
+@cindex variables, overriding
+
+If a variable has been set with a command argument
+(@pxref{Overriding, ,Overriding Variables}),
+then ordinary assignments in the makefile are ignored. If you want to set
+the variable in the makefile even though it was set with a command
+argument, you can use an @code{override} directive, which is a line that
+looks like this:@refill
+
+@example
+override @var{variable} = @var{value}
+@end example
+
+@noindent
+or
+
+@example
+override @var{variable} := @var{value}
+@end example
+
+To append more text to a variable defined on the command line, use:
+
+@example
+override @var{variable} += @var{more text}
+@end example
+
+@noindent
+@xref{Appending, ,Appending More Text to Variables}.
+
+Variable assignments marked with the @code{override} flag have a
+higher priority than all other assignments, except another
+@code{override}. Subsequent assignments or appends to this variable
+which are not marked @code{override} will be ignored.
+
+The @code{override} directive was not invented for escalation in the war
+between makefiles and command arguments. It was invented so you can alter
+and add to values that the user specifies with command arguments.
+
+For example, suppose you always want the @samp{-g} switch when you run the
+C compiler, but you would like to allow the user to specify the other
+switches with a command argument just as usual. You could use this
+@code{override} directive:
+
+@example
+override CFLAGS += -g
+@end example
+
+You can also use @code{override} directives with @code{define} directives.
+This is done as you might expect:
+
+@example
+override define foo =
+bar
+endef
+@end example
+
+@noindent
+@iftex
+See the next section for information about @code{define}.
+@end iftex
+@ifnottex
+@xref{Multi-Line, ,Defining Multi-Line Variables}.
+@end ifnottex
+
+@node Multi-Line, Undefine Directive, Override Directive, Using Variables
+@section Defining Multi-Line Variables
+@findex define
+@findex endef
+@cindex multi-line variable definition
+@cindex variables, multi-line
+@cindex verbatim variable definition
+@cindex defining variables verbatim
+@cindex variables, defining verbatim
+
+Another way to set the value of a variable is to use the @code{define}
+directive. This directive has an unusual syntax which allows newline
+characters to be included in the value, which is convenient for
+defining both canned sequences of commands (@pxref{Canned Recipes,
+,Defining Canned Recipes}), and also sections of makefile syntax to
+use with @code{eval} (@pxref{Eval Function}).@refill
+
+The @code{define} directive is followed on the same line by the name
+of the variable being defined and an (optional) assignment operator,
+and nothing more. The value to give the variable appears on the
+following lines. The end of the value is marked by a line containing
+just the word @code{endef}. Aside from this difference in syntax,
+@code{define} works just like any other variable definition. The
+variable name may contain function and variable references, which are
+expanded when the directive is read to find the actual variable name
+to use.
+
+You may omit the variable assignment operator if you prefer. If
+omitted, @code{make} assumes it to be @samp{=} and creates a
+recursively-expanded variable (@pxref{Flavors, ,The Two Flavors of Variables}).
+When using a @samp{+=} operator, the value is appended to the previous
+value as with any other append operation: with a single space
+separating the old and new values.
+
+You may nest @code{define} directives: @code{make} will keep track of
+nested directives and report an error if they are not all properly
+closed with @code{endef}. Note that lines beginning with the recipe
+prefix character are considered part of a recipe, so any @code{define}
+or @code{endef} strings appearing on such a line will not be
+considered @code{make} directives.
+
+@example
+define two-lines =
+echo foo
+echo $(bar)
+endef
+@end example
+
+The value in an ordinary assignment cannot contain a newline; but the
+newlines that separate the lines of the value in a @code{define} become
+part of the variable's value (except for the final newline which precedes
+the @code{endef} and is not considered part of the value).@refill
+
+@need 800
+When used in a recipe, the previous example is functionally equivalent
+to this:
+
+@example
+two-lines = echo foo; echo $(bar)
+@end example
+
+@noindent
+since two commands separated by semicolon behave much like two separate
+shell commands. However, note that using two separate lines means
+@code{make} will invoke the shell twice, running an independent sub-shell
+for each line. @xref{Execution, ,Recipe Execution}.
+
+If you want variable definitions made with @code{define} to take
+precedence over command-line variable definitions, you can use the
+@code{override} directive together with @code{define}:
+
+@example
+override define two-lines =
+foo
+$(bar)
+endef
+@end example
+
+@noindent
+@xref{Override Directive, ,The @code{override} Directive}.
+
+@node Undefine Directive, Environment, Multi-Line, Using Variables
+@section Undefining Variables
+@findex undefine
+@cindex undefining variable
+
+If you want to clear a variable, setting its value to empty is usually
+sufficient. Expanding such a variable will yield the same result (empty
+string) regardless of whether it was set or not. However, if you are
+using the @code{flavor} (@pxref{Flavor Function}) and
+@code{origin} (@pxref{Origin Function}) functions, there is a difference
+between a variable that was never set and a variable with an empty value.
+In such situations you may want to use the @code{undefine} directive to
+make a variable appear as if it was never set. For example:
+
+@example
+foo := foo
+bar = bar
+
+undefine foo
+undefine bar
+
+$(info $(origin foo))
+$(info $(flavor bar))
+@end example
+
+This example will print ``undefined'' for both variables.
+
+If you want to undefine a command-line variable definition, you can use
+the @code{override} directive together with @code{undefine}, similar to
+how this is done for variable definitions:
+
+@example
+override undefine CFLAGS
+@end example
+
+@node Environment, Target-specific, Undefine Directive, Using Variables
+@section Variables from the Environment
+
+@cindex variables, environment
+@cindex environment
+Variables in @code{make} can come from the environment in which
+@code{make} is run. Every environment variable that @code{make} sees
+when it starts up is transformed into a @code{make} variable with the
+same name and value. However, an explicit assignment in the makefile,
+or with a command argument, overrides the environment. (If the
+@samp{-e} flag is specified, then values from the environment override
+assignments in the makefile. @xref{Options Summary, ,Summary of
+Options}. But this is not recommended practice.)
+
+Thus, by setting the variable @code{CFLAGS} in your environment, you can
+cause all C compilations in most makefiles to use the compiler switches you
+prefer. This is safe for variables with standard or conventional meanings
+because you know that no makefile will use them for other things. (Note
+this is not totally reliable; some makefiles set @code{CFLAGS} explicitly
+and therefore are not affected by the value in the environment.)
+
+When @code{make} runs a recipe, variables defined in the
+makefile are placed into the environment of each shell. This allows
+you to pass values to sub-@code{make} invocations (@pxref{Recursion,
+,Recursive Use of @code{make}}). By default, only variables that came
+from the environment or the command line are passed to recursive
+invocations. You can use the @code{export} directive to pass other
+variables. @xref{Variables/Recursion, , Communicating Variables to a
+Sub-@code{make}}, for full details.
+
+Other use of variables from the environment is not recommended. It is not
+wise for makefiles to depend for their functioning on environment variables
+set up outside their control, since this would cause different users to get
+different results from the same makefile. This is against the whole
+purpose of most makefiles.
+
+@cindex SHELL, import from environment
+Such problems would be especially likely with the variable
+@code{SHELL}, which is normally present in the environment to specify
+the user's choice of interactive shell. It would be very undesirable
+for this choice to affect @code{make}; so, @code{make} handles the
+@code{SHELL} environment variable in a special way; see @ref{Choosing
+the Shell}.@refill
+
+@node Target-specific, Pattern-specific, Environment, Using Variables
+@section Target-specific Variable Values
+@cindex target-specific variables
+@cindex variables, target-specific
+
+Variable values in @code{make} are usually global; that is, they are the
+same regardless of where they are evaluated (unless they're reset, of
+course). One exception to that is automatic variables
+(@pxref{Automatic Variables}).
+
+The other exception is @dfn{target-specific variable values}. This
+feature allows you to define different values for the same variable,
+based on the target that @code{make} is currently building. As with
+automatic variables, these values are only available within the context
+of a target's recipe (and in other target-specific assignments).
+
+Set a target-specific variable value like this:
+
+@example
+@var{target} @dots{} : @var{variable-assignment}
+@end example
+
+Target-specific variable assignments can be prefixed with any or all of the
+special keywords @code{export}, @code{override}, or @code{private};
+these apply their normal behavior to this instance of the variable only.
+
+Multiple @var{target} values create a target-specific variable value for
+each member of the target list individually.
+
+The @var{variable-assignment} can be any valid form of assignment;
+recursive (@samp{=}), simple (@samp{:=} or @samp{::=}), appending
+(@samp{+=}), or conditional (@samp{?=}). All variables that appear
+within the @var{variable-assignment} are evaluated within the context
+of the target: thus, any previously-defined target-specific variable
+values will be in effect. Note that this variable is actually
+distinct from any ``global'' value: the two variables do not have to
+have the same flavor (recursive vs.@: simple).
+
+Target-specific variables have the same priority as any other makefile
+variable. Variables provided on the command line (and in the
+environment if the @samp{-e} option is in force) will take precedence.
+Specifying the @code{override} directive will allow the target-specific
+variable value to be preferred.
+
+There is one more special feature of target-specific variables: when
+you define a target-specific variable that variable value is also in
+effect for all prerequisites of this target, and all their
+prerequisites, etc.@: (unless those prerequisites override that variable
+with their own target-specific variable value). So, for example, a
+statement like this:
+
+@example
+prog : CFLAGS = -g
+prog : prog.o foo.o bar.o
+@end example
+
+@noindent
+will set @code{CFLAGS} to @samp{-g} in the recipe for @file{prog}, but
+it will also set @code{CFLAGS} to @samp{-g} in the recipes that create
+@file{prog.o}, @file{foo.o}, and @file{bar.o}, and any recipes which
+create their prerequisites.
+
+Be aware that a given prerequisite will only be built once per
+invocation of make, at most. If the same file is a prerequisite of
+multiple targets, and each of those targets has a different value for
+the same target-specific variable, then the first target to be built
+will cause that prerequisite to be built and the prerequisite will
+inherit the target-specific value from the first target. It will
+ignore the target-specific values from any other targets.
+
+@node Pattern-specific, Suppressing Inheritance, Target-specific, Using Variables
+@section Pattern-specific Variable Values
+@cindex pattern-specific variables
+@cindex variables, pattern-specific
+
+In addition to target-specific variable values
+(@pxref{Target-specific, ,Target-specific Variable Values}), GNU
+@code{make} supports pattern-specific variable values. In this form,
+the variable is defined for any target that matches the pattern
+specified.
+
+Set a pattern-specific variable value like this:
+
+@example
+@var{pattern} @dots{} : @var{variable-assignment}
+@end example
+where @var{pattern} is a %-pattern. As with target-specific variable
+values, multiple @var{pattern} values create a pattern-specific variable
+value for each pattern individually. The @var{variable-assignment} can
+be any valid form of assignment. Any command line variable setting will
+take precedence, unless @code{override} is specified.
+
+For example:
+
+@example
+%.o : CFLAGS = -O
+@end example
+
+@noindent
+will assign @code{CFLAGS} the value of @samp{-O} for all targets
+matching the pattern @code{%.o}.
+
+If a target matches more than one pattern, the matching pattern-specific
+variables with longer stems are interpreted first. This results in more
+specific variables taking precedence over the more generic ones, for
+example:
+
+@example
+%.o: %.c
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@@
+
+lib/%.o: CFLAGS := -fPIC -g
+%.o: CFLAGS := -g
+
+all: foo.o lib/bar.o
+@end example
+
+In this example the first definition of the @code{CFLAGS} variable
+will be used to update @file{lib/bar.o} even though the second one
+also applies to this target. Pattern-specific variables which result
+in the same stem length are considered in the order in which they
+were defined in the makefile.
+
+Pattern-specific variables are searched after any target-specific
+variables defined explicitly for that target, and before target-specific
+variables defined for the parent target.
+
+@node Suppressing Inheritance, Special Variables, Pattern-specific, Using Variables
+@section Suppressing Inheritance
+@findex private
+@cindex suppressing inheritance
+@cindex inheritance, suppressing
+
+As described in previous sections, @code{make} variables are inherited
+by prerequisites. This capability allows you to modify the behavior
+of a prerequisite based on which targets caused it to be rebuilt. For
+example, you might set a target-specific variable on a @code{debug}
+target, then running @samp{make debug} will cause that variable to be
+inherited by all prerequisites of @code{debug}, while just running
+@samp{make all} (for example) would not have that assignment.
+
+Sometimes, however, you may not want a variable to be inherited. For
+these situations, @code{make} provides the @code{private} modifier.
+Although this modifier can be used with any variable assignment, it
+makes the most sense with target- and pattern-specific variables. Any
+variable marked @code{private} will be visible to its local target but
+will not be inherited by prerequisites of that target. A global
+variable marked @code{private} will be visible in the global scope but
+will not be inherited by any target, and hence will not be visible
+in any recipe.
+
+As an example, consider this makefile:
+@example
+EXTRA_CFLAGS =
+
+prog: private EXTRA_CFLAGS = -L/usr/local/lib
+prog: a.o b.o
+@end example
+
+Due to the @code{private} modifier, @code{a.o} and @code{b.o} will not
+inherit the @code{EXTRA_CFLAGS} variable assignment from the
+@code{prog} target.
+
+@node Special Variables, , Suppressing Inheritance, Using Variables
+@comment node-name, next, previous, up
+@section Other Special Variables
+@cindex makefiles, and special variables
+@cindex special variables
+
+GNU @code{make} supports some variables that have special properties.
+
+@table @code
+
+@vindex MAKEFILE_LIST @r{(list of parsed makefiles)}
+@cindex makefiles, and @code{MAKEFILE_LIST} variable
+@cindex including (@code{MAKEFILE_LIST} variable)
+@item MAKEFILE_LIST
+Contains the name of each makefile that is parsed by @code{make}, in
+the order in which it was parsed. The name is appended just
+before @code{make} begins to parse the makefile. Thus, if the first
+thing a makefile does is examine the last word in this variable, it
+will be the name of the current makefile. Once the current makefile
+has used @code{include}, however, the last word will be the
+just-included makefile.
+
+If a makefile named @code{Makefile} has this content:
+
+@example
+@group
+name1 := $(lastword $(MAKEFILE_LIST))
+
+include inc.mk
+
+name2 := $(lastword $(MAKEFILE_LIST))
+
+all:
+ @@echo name1 = $(name1)
+ @@echo name2 = $(name2)
+@end group
+@end example
+
+@noindent
+then you would expect to see this output:
+
+@example
+@group
+name1 = Makefile
+name2 = inc.mk
+@end group
+@end example
+
+@vindex .DEFAULT_GOAL @r{(define default goal)}
+@item .DEFAULT_GOAL
+Sets the default goal to be used if no targets were specified on the
+command line (@pxref{Goals, , Arguments to Specify the Goals}). The
+@code{.DEFAULT_GOAL} variable allows you to discover the current
+default goal, restart the default goal selection algorithm by clearing
+its value, or to explicitly set the default goal. The following
+example illustrates these cases:
+
+@example
+@group
+# Query the default goal.
+ifeq ($(.DEFAULT_GOAL),)
+ $(warning no default goal is set)
+endif
+
+.PHONY: foo
+foo: ; @@echo $@@
+
+$(warning default goal is $(.DEFAULT_GOAL))
+
+# Reset the default goal.
+.DEFAULT_GOAL :=
+
+.PHONY: bar
+bar: ; @@echo $@@
+
+$(warning default goal is $(.DEFAULT_GOAL))
+
+# Set our own.
+.DEFAULT_GOAL := foo
+@end group
+@end example
+
+This makefile prints:
+
+@example
+@group
+no default goal is set
+default goal is foo
+default goal is bar
+foo
+@end group
+@end example
+
+Note that assigning more than one target name to @code{.DEFAULT_GOAL} is
+invalid and will result in an error.
+
+@vindex MAKE_RESTARTS @r{(number of times @code{make} has restarted)}
+@item MAKE_RESTARTS
+This variable is set only if this instance of @code{make} has
+restarted (@pxref{Remaking Makefiles, , How Makefiles Are Remade}): it
+will contain the number of times this instance has restarted. Note
+this is not the same as recursion (counted by the @code{MAKELEVEL}
+variable). You should not set, modify, or export this variable.
+
+@vindex MAKE_TERMOUT @r{(whether stdout is a terminal)}
+@vindex MAKE_TERMERR @r{(whether stderr is a terminal)}
+@item MAKE_TERMOUT
+@itemx MAKE_TERMERR
+When @code{make} starts it will check whether stdout and stderr will
+show their output on a terminal. If so, it will set
+@code{MAKE_TERMOUT} and @code{MAKE_TERMERR}, respectively, to the name
+of the terminal device (or @code{true} if this cannot be determined).
+If set these variables will be marked for export. These variables
+will not be changed by @code{make} and they will not be modified if
+already set.
+
+These values can be used (particularly in combination with output
+synchronization (@pxref{Parallel Output, ,Output During Parallel
+Execution}) to determine whether @code{make} itself is writing to a
+terminal; they can be tested to decide whether to force recipe
+commands to generate colorized output for example.
+
+If you invoke a sub-@code{make} and redirect its stdout or stderr it
+is your responsibility to reset or unexport these variables as well,
+if your makefiles rely on them.
+
+@vindex .RECIPEPREFIX @r{(change the recipe prefix character)}
+@item .RECIPEPREFIX
+The first character of the value of this variable is used as the
+character make assumes is introducing a recipe line. If the variable
+is empty (as it is by default) that character is the standard tab
+character. For example, this is a valid makefile:
+
+@example
+@group
+.RECIPEPREFIX = >
+all:
+> @@echo Hello, world
+@end group
+@end example
+
+The value of @code{.RECIPEPREFIX} can be changed multiple times; once set
+it stays in effect for all rules parsed until it is modified.
+
+@vindex .VARIABLES @r{(list of variables)}
+@item .VARIABLES
+Expands to a list of the @emph{names} of all global variables defined
+so far. This includes variables which have empty values, as well as
+built-in variables (@pxref{Implicit Variables, , Variables Used by
+Implicit Rules}), but does not include any variables which are only
+defined in a target-specific context. Note that any value you assign
+to this variable will be ignored; it will always return its special
+value.
+
+@c @vindex .TARGETS @r{(list of targets)}
+@c @item .TARGETS
+@c The second special variable is @code{.TARGETS}. When expanded, the
+@c value consists of a list of all targets defined in all makefiles read
+@c up until that point. Note it's not enough for a file to be simply
+@c mentioned in the makefile to be listed in this variable, even if it
+@c would match an implicit rule and become an ``implicit target''. The
+@c file must appear as a target, on the left-hand side of a ``:'', to be
+@c considered a target for the purposes of this variable.
+
+@vindex .FEATURES @r{(list of supported features)}
+@item .FEATURES
+Expands to a list of special features supported by this version of
+@code{make}. Possible values include, but are not limited to:
+
+@table @samp
+
+@item archives
+Supports @code{ar} (archive) files using special file name syntax.
+@xref{Archives, ,Using @code{make} to Update Archive Files}.
+
+@item check-symlink
+Supports the @code{-L} (@code{--check-symlink-times}) flag.
+@xref{Options Summary, ,Summary of Options}.
+
+@item else-if
+Supports ``else if'' non-nested conditionals. @xref{Conditional
+Syntax, ,Syntax of Conditionals}.
+
+@item jobserver
+Supports ``job server'' enhanced parallel builds. @xref{Parallel,
+,Parallel Execution}.
+
+@item oneshell
+Supports the @code{.ONESHELL} special target. @xref{One Shell, ,Using
+One Shell}.
+
+@item order-only
+Supports order-only prerequisites. @xref{Prerequisite Types, ,Types
+of Prerequisites}.
+
+@item second-expansion
+Supports secondary expansion of prerequisite lists.
+
+@item shortest-stem
+Uses the ``shortest stem'' method of choosing which pattern, of
+multiple applicable options, will be used. @xref{Pattern Match, ,How
+Patterns Match}.
+
+@item target-specific
+Supports target-specific and pattern-specific variable assignments.
+@xref{Target-specific, ,Target-specific Variable Values}.
+
+@item undefine
+Supports the @code{undefine} directive. @xref{Undefine Directive}.
+
+@item guile
+Has GNU Guile available as an embedded extension language.
+@xref{Guile Integration, ,GNU Guile Integration}.
+
+@item load
+Supports dynamically loadable objects for creating custom extensions.
+@xref{Loading Objects, ,Loading Dynamic Objects}.
+@end table
+
+@vindex .INCLUDE_DIRS @r{(list of include directories)}
+@item .INCLUDE_DIRS
+Expands to a list of directories that @code{make} searches for
+included makefiles (@pxref{Include, , Including Other Makefiles}).
+
+@end table
+
+@node Conditionals, Functions, Using Variables, Top
+@chapter Conditional Parts of Makefiles
+
+@cindex conditionals
+A @dfn{conditional} directive causes part of a makefile to be obeyed
+or ignored depending on the values of variables. Conditionals can
+compare the value of one variable to another, or the value of a
+variable to a constant string. Conditionals control what @code{make}
+actually ``sees'' in the makefile, so they @emph{cannot} be used to
+control recipes at the time of execution.@refill
+
+@menu
+* Conditional Example:: Example of a conditional
+* Conditional Syntax:: The syntax of conditionals.
+* Testing Flags:: Conditionals that test flags.
+@end menu
+
+@node Conditional Example, Conditional Syntax, Conditionals, Conditionals
+@section Example of a Conditional
+
+The following example of a conditional tells @code{make} to use one
+set of libraries if the @code{CC} variable is @samp{gcc}, and a
+different set of libraries otherwise. It works by controlling which
+of two recipe lines will be used for the rule. The result is that
+@samp{CC=gcc} as an argument to @code{make} changes not only which
+compiler is used but also which libraries are linked.
+
+@example
+libs_for_gcc = -lgnu
+normal_libs =
+
+foo: $(objects)
+ifeq ($(CC),gcc)
+ $(CC) -o foo $(objects) $(libs_for_gcc)
+else
+ $(CC) -o foo $(objects) $(normal_libs)
+endif
+@end example
+
+This conditional uses three directives: one @code{ifeq}, one @code{else}
+and one @code{endif}.
+
+The @code{ifeq} directive begins the conditional, and specifies the
+condition. It contains two arguments, separated by a comma and surrounded
+by parentheses. Variable substitution is performed on both arguments and
+then they are compared. The lines of the makefile following the
+@code{ifeq} are obeyed if the two arguments match; otherwise they are
+ignored.
+
+The @code{else} directive causes the following lines to be obeyed if the
+previous conditional failed. In the example above, this means that the
+second alternative linking command is used whenever the first alternative
+is not used. It is optional to have an @code{else} in a conditional.
+
+The @code{endif} directive ends the conditional. Every conditional must
+end with an @code{endif}. Unconditional makefile text follows.
+
+As this example illustrates, conditionals work at the textual level:
+the lines of the conditional are treated as part of the makefile, or
+ignored, according to the condition. This is why the larger syntactic
+units of the makefile, such as rules, may cross the beginning or the
+end of the conditional.
+
+When the variable @code{CC} has the value @samp{gcc}, the above example has
+this effect:
+
+@example
+foo: $(objects)
+ $(CC) -o foo $(objects) $(libs_for_gcc)
+@end example
+
+@noindent
+When the variable @code{CC} has any other value, the effect is this:
+
+@example
+foo: $(objects)
+ $(CC) -o foo $(objects) $(normal_libs)
+@end example
+
+Equivalent results can be obtained in another way by conditionalizing a
+variable assignment and then using the variable unconditionally:
+
+@example
+libs_for_gcc = -lgnu
+normal_libs =
+
+ifeq ($(CC),gcc)
+ libs=$(libs_for_gcc)
+else
+ libs=$(normal_libs)
+endif
+
+foo: $(objects)
+ $(CC) -o foo $(objects) $(libs)
+@end example
+
+@node Conditional Syntax, Testing Flags, Conditional Example, Conditionals
+@section Syntax of Conditionals
+@findex ifdef
+@findex ifeq
+@findex ifndef
+@findex ifneq
+@findex else
+@findex endif
+
+The syntax of a simple conditional with no @code{else} is as follows:
+
+@example
+@var{conditional-directive}
+@var{text-if-true}
+endif
+@end example
+
+@noindent
+The @var{text-if-true} may be any lines of text, to be considered as part
+of the makefile if the condition is true. If the condition is false, no
+text is used instead.
+
+The syntax of a complex conditional is as follows:
+
+@example
+@var{conditional-directive}
+@var{text-if-true}
+else
+@var{text-if-false}
+endif
+@end example
+
+or:
+
+@example
+@var{conditional-directive-one}
+@var{text-if-one-is-true}
+else @var{conditional-directive-two}
+@var{text-if-two-is-true}
+else
+@var{text-if-one-and-two-are-false}
+endif
+@end example
+
+@noindent
+There can be as many ``@code{else} @var{conditional-directive}''
+clauses as necessary. Once a given condition is true,
+@var{text-if-true} is used and no other clause is used; if no
+condition is true then @var{text-if-false} is used. The
+@var{text-if-true} and @var{text-if-false} can be any number of lines
+of text.
+
+The syntax of the @var{conditional-directive} is the same whether the
+conditional is simple or complex; after an @code{else} or not. There
+are four different directives that test different conditions. Here is
+a table of them:
+
+@table @code
+@item ifeq (@var{arg1}, @var{arg2})
+@itemx ifeq '@var{arg1}' '@var{arg2}'
+@itemx ifeq "@var{arg1}" "@var{arg2}"
+@itemx ifeq "@var{arg1}" '@var{arg2}'
+@itemx ifeq '@var{arg1}' "@var{arg2}"
+Expand all variable references in @var{arg1} and @var{arg2} and
+compare them. If they are identical, the @var{text-if-true} is
+effective; otherwise, the @var{text-if-false}, if any, is effective.
+
+Often you want to test if a variable has a non-empty value. When the
+value results from complex expansions of variables and functions,
+expansions you would consider empty may actually contain whitespace
+characters and thus are not seen as empty. However, you can use the
+@code{strip} function (@pxref{Text Functions}) to avoid interpreting
+whitespace as a non-empty value. For example:
+
+@example
+@group
+ifeq ($(strip $(foo)),)
+@var{text-if-empty}
+endif
+@end group
+@end example
+
+@noindent
+will evaluate @var{text-if-empty} even if the expansion of
+@code{$(foo)} contains whitespace characters.
+
+@item ifneq (@var{arg1}, @var{arg2})
+@itemx ifneq '@var{arg1}' '@var{arg2}'
+@itemx ifneq "@var{arg1}" "@var{arg2}"
+@itemx ifneq "@var{arg1}" '@var{arg2}'
+@itemx ifneq '@var{arg1}' "@var{arg2}"
+Expand all variable references in @var{arg1} and @var{arg2} and
+compare them. If they are different, the @var{text-if-true} is
+effective; otherwise, the @var{text-if-false}, if any, is effective.
+
+@item ifdef @var{variable-name}
+The @code{ifdef} form takes the @emph{name} of a variable as its
+argument, not a reference to a variable. If the value of that
+variable has a non-empty value, the @var{text-if-true} is effective;
+otherwise, the @var{text-if-false}, if any, is effective. Variables
+that have never been defined have an empty value. The text
+@var{variable-name} is expanded, so it could be a variable or function
+that expands to the name of a variable. For example:
+
+@example
+bar = true
+foo = bar
+ifdef $(foo)
+frobozz = yes
+endif
+@end example
+
+The variable reference @code{$(foo)} is expanded, yielding @code{bar},
+which is considered to be the name of a variable. The variable
+@code{bar} is not expanded, but its value is examined to determine if
+it is non-empty.
+
+Note that @code{ifdef} only tests whether a variable has a value. It
+does not expand the variable to see if that value is nonempty.
+Consequently, tests using @code{ifdef} return true for all definitions
+except those like @code{foo =}. To test for an empty value, use
+@w{@code{ifeq ($(foo),)}}. For example,
+
+@example
+bar =
+foo = $(bar)
+ifdef foo
+frobozz = yes
+else
+frobozz = no
+endif
+@end example
+
+@noindent
+sets @samp{frobozz} to @samp{yes}, while:
+
+@example
+foo =
+ifdef foo
+frobozz = yes
+else
+frobozz = no
+endif
+@end example
+
+@noindent
+sets @samp{frobozz} to @samp{no}.
+
+@item ifndef @var{variable-name}
+If the variable @var{variable-name} has an empty value, the
+@var{text-if-true} is effective; otherwise, the @var{text-if-false},
+if any, is effective. The rules for expansion and testing of
+@var{variable-name} are identical to the @code{ifdef} directive.
+@end table
+
+Extra spaces are allowed and ignored at the beginning of the
+conditional directive line, but a tab is not allowed. (If the line
+begins with a tab, it will be considered part of a recipe for a rule.)
+Aside from this, extra spaces or tabs may be inserted with no effect
+anywhere except within the directive name or within an argument. A
+comment starting with @samp{#} may appear at the end of the line.
+
+The other two directives that play a part in a conditional are @code{else}
+and @code{endif}. Each of these directives is written as one word, with no
+arguments. Extra spaces are allowed and ignored at the beginning of the
+line, and spaces or tabs at the end. A comment starting with @samp{#} may
+appear at the end of the line.
+
+Conditionals affect which lines of the makefile @code{make} uses. If
+the condition is true, @code{make} reads the lines of the
+@var{text-if-true} as part of the makefile; if the condition is false,
+@code{make} ignores those lines completely. It follows that syntactic
+units of the makefile, such as rules, may safely be split across the
+beginning or the end of the conditional.@refill
+
+@code{make} evaluates conditionals when it reads a makefile.
+Consequently, you cannot use automatic variables in the tests of
+conditionals because they are not defined until recipes are run
+(@pxref{Automatic Variables}).
+
+To prevent intolerable confusion, it is not permitted to start a
+conditional in one makefile and end it in another. However, you may
+write an @code{include} directive within a conditional, provided you do
+not attempt to terminate the conditional inside the included file.
+
+@node Testing Flags, , Conditional Syntax, Conditionals
+@section Conditionals that Test Flags
+
+You can write a conditional that tests @code{make} command flags such as
+@samp{-t} by using the variable @code{MAKEFLAGS} together with the
+@code{findstring} function
+(@pxref{Text Functions, , Functions for String Substitution and Analysis}).
+This is useful when @code{touch} is not enough to make a file appear up
+to date.
+
+The @code{findstring} function determines whether one string appears as a
+substring of another. If you want to test for the @samp{-t} flag,
+use @samp{t} as the first string and the value of @code{MAKEFLAGS} as
+the other.
+
+For example, here is how to arrange to use @samp{ranlib -t} to finish
+marking an archive file up to date:
+
+@example
+archive.a: @dots{}
+ifneq (,$(findstring t,$(MAKEFLAGS)))
+ +touch archive.a
+ +ranlib -t archive.a
+else
+ ranlib archive.a
+endif
+@end example
+
+@noindent
+The @samp{+} prefix marks those recipe lines as ``recursive'' so that
+they will be executed despite use of the @samp{-t} flag.
+@xref{Recursion, ,Recursive Use of @code{make}}.
+
+@node Functions, Running, Conditionals, Top
+@chapter Functions for Transforming Text
+@cindex functions
+
+@dfn{Functions} allow you to do text processing in the makefile to
+compute the files to operate on or the commands to use in recipes.
+You use a function in a @dfn{function call}, where you give the name
+of the function and some text (the @dfn{arguments}) for the function
+to operate on. The result of the function's processing is substituted
+into the makefile at the point of the call, just as a variable might
+be substituted.
+
+@menu
+* Syntax of Functions:: How to write a function call.
+* Text Functions:: General-purpose text manipulation functions.
+* File Name Functions:: Functions for manipulating file names.
+* Conditional Functions:: Functions that implement conditions.
+* Foreach Function:: Repeat some text with controlled variation.
+* File Function:: Write text to a file.
+* Call Function:: Expand a user-defined function.
+* Value Function:: Return the un-expanded value of a variable.
+* Eval Function:: Evaluate the arguments as makefile syntax.
+* Origin Function:: Find where a variable got its value.
+* Flavor Function:: Find out the flavor of a variable.
+* Make Control Functions:: Functions that control how make runs.
+* Shell Function:: Substitute the output of a shell command.
+* Guile Function:: Use GNU Guile embedded scripting language.
+@end menu
+
+@node Syntax of Functions, Text Functions, Functions, Functions
+@section Function Call Syntax
+@cindex @code{$}, in function call
+@cindex dollar sign (@code{$}), in function call
+@cindex arguments of functions
+@cindex functions, syntax of
+
+A function call resembles a variable reference. It can appear
+anywhere a variable reference can appear, and it is expanded using the
+same rules as variable references. A function call looks like this:
+
+@example
+$(@var{function} @var{arguments})
+@end example
+
+@noindent
+or like this:
+
+@example
+$@{@var{function} @var{arguments}@}
+@end example
+
+Here @var{function} is a function name; one of a short list of names
+that are part of @code{make}. You can also essentially create your own
+functions by using the @code{call} built-in function.
+
+The @var{arguments} are the arguments of the function. They are
+separated from the function name by one or more spaces or tabs, and if
+there is more than one argument, then they are separated by commas.
+Such whitespace and commas are not part of an argument's value. The
+delimiters which you use to surround the function call, whether
+parentheses or braces, can appear in an argument only in matching pairs;
+the other kind of delimiters may appear singly. If the arguments
+themselves contain other function calls or variable references, it is
+wisest to use the same kind of delimiters for all the references; write
+@w{@samp{$(subst a,b,$(x))}}, not @w{@samp{$(subst a,b,$@{x@})}}. This
+is because it is clearer, and because only one type of delimiter is
+matched to find the end of the reference.
+
+The text written for each argument is processed by substitution of
+variables and function calls to produce the argument value, which
+is the text on which the function acts. The substitution is done in the
+order in which the arguments appear.
+
+Commas and unmatched parentheses or braces cannot appear in the text of an
+argument as written; leading spaces cannot appear in the text of the first
+argument as written. These characters can be put into the argument value
+by variable substitution. First define variables @code{comma} and
+@code{space} whose values are isolated comma and space characters, then
+substitute these variables where such characters are wanted, like this:
+
+@example
+@group
+comma:= ,
+empty:=
+space:= $(empty) $(empty)
+foo:= a b c
+bar:= $(subst $(space),$(comma),$(foo))
+# @r{bar is now `a,b,c'.}
+@end group
+@end example
+
+@noindent
+Here the @code{subst} function replaces each space with a comma, through
+the value of @code{foo}, and substitutes the result.
+
+@node Text Functions, File Name Functions, Syntax of Functions, Functions
+@section Functions for String Substitution and Analysis
+@cindex functions, for text
+
+Here are some functions that operate on strings:
+
+@table @code
+@item $(subst @var{from},@var{to},@var{text})
+@findex subst
+Performs a textual replacement on the text @var{text}: each occurrence
+of @var{from} is replaced by @var{to}. The result is substituted for
+the function call. For example,
+
+@example
+$(subst ee,EE,feet on the street)
+@end example
+
+substitutes the string @samp{fEEt on the strEEt}.
+
+@item $(patsubst @var{pattern},@var{replacement},@var{text})
+@findex patsubst
+Finds whitespace-separated words in @var{text} that match
+@var{pattern} and replaces them with @var{replacement}. Here
+@var{pattern} may contain a @samp{%} which acts as a wildcard,
+matching any number of any characters within a word. If
+@var{replacement} also contains a @samp{%}, the @samp{%} is replaced
+by the text that matched the @samp{%} in @var{pattern}. Only the first
+@samp{%} in the @var{pattern} and @var{replacement} is treated this
+way; any subsequent @samp{%} is unchanged.@refill
+
+@cindex @code{%}, quoting in @code{patsubst}
+@cindex @code{%}, quoting with @code{\} (backslash)
+@cindex @code{\} (backslash), to quote @code{%}
+@cindex backslash (@code{\}), to quote @code{%}
+@cindex quoting @code{%}, in @code{patsubst}
+@samp{%} characters in @code{patsubst} function invocations can be
+quoted with preceding backslashes (@samp{\}). Backslashes that would
+otherwise quote @samp{%} characters can be quoted with more backslashes.
+Backslashes that quote @samp{%} characters or other backslashes are
+removed from the pattern before it is compared file names or has a stem
+substituted into it. Backslashes that are not in danger of quoting
+@samp{%} characters go unmolested. For example, the pattern
+@file{the\%weird\\%pattern\\} has @samp{the%weird\} preceding the
+operative @samp{%} character, and @samp{pattern\\} following it. The
+final two backslashes are left alone because they cannot affect any
+@samp{%} character.@refill
+
+Whitespace between words is folded into single space characters;
+leading and trailing whitespace is discarded.
+
+For example,
+
+@example
+$(patsubst %.c,%.o,x.c.c bar.c)
+@end example
+
+@noindent
+produces the value @samp{x.c.o bar.o}.
+
+Substitution references (@pxref{Substitution Refs, ,Substitution
+References}) are a simpler way to get the effect of the @code{patsubst}
+function:
+
+@example
+$(@var{var}:@var{pattern}=@var{replacement})
+@end example
+
+@noindent
+is equivalent to
+
+@example
+$(patsubst @var{pattern},@var{replacement},$(@var{var}))
+@end example
+
+The second shorthand simplifies one of the most common uses of
+@code{patsubst}: replacing the suffix at the end of file names.
+
+@example
+$(@var{var}:@var{suffix}=@var{replacement})
+@end example
+
+@noindent
+is equivalent to
+
+@example
+$(patsubst %@var{suffix},%@var{replacement},$(@var{var}))
+@end example
+
+@noindent
+For example, you might have a list of object files:
+
+@example
+objects = foo.o bar.o baz.o
+@end example
+
+@noindent
+To get the list of corresponding source files, you could simply write:
+
+@example
+$(objects:.o=.c)
+@end example
+
+@noindent
+instead of using the general form:
+
+@example
+$(patsubst %.o,%.c,$(objects))
+@end example
+
+@item $(strip @var{string})
+@cindex stripping whitespace
+@cindex whitespace, stripping
+@cindex spaces, stripping
+@findex strip
+Removes leading and trailing whitespace from @var{string} and replaces
+each internal sequence of one or more whitespace characters with a
+single space. Thus, @samp{$(strip a b c )} results in @w{@samp{a b c}}.
+
+The function @code{strip} can be very useful when used in conjunction
+with conditionals. When comparing something with the empty string
+@samp{} using @code{ifeq} or @code{ifneq}, you usually want a string of
+just whitespace to match the empty string (@pxref{Conditionals}).
+
+Thus, the following may fail to have the desired results:
+
+@example
+.PHONY: all
+ifneq "$(needs_made)" ""
+all: $(needs_made)
+else
+all:;@@echo 'Nothing to make!'
+endif
+@end example
+
+@noindent
+Replacing the variable reference @w{@samp{$(needs_made)}} with the
+function call @w{@samp{$(strip $(needs_made))}} in the @code{ifneq}
+directive would make it more robust.@refill
+
+@item $(findstring @var{find},@var{in})
+@findex findstring
+@cindex searching for strings
+@cindex finding strings
+@cindex strings, searching for
+Searches @var{in} for an occurrence of @var{find}. If it occurs, the
+value is @var{find}; otherwise, the value is empty. You can use this
+function in a conditional to test for the presence of a specific
+substring in a given string. Thus, the two examples,
+
+@example
+$(findstring a,a b c)
+$(findstring a,b c)
+@end example
+
+@noindent
+produce the values @samp{a} and @samp{} (the empty string),
+respectively. @xref{Testing Flags}, for a practical application of
+@code{findstring}.@refill
+
+@need 750
+@findex filter
+@cindex filtering words
+@cindex words, filtering
+@item $(filter @var{pattern}@dots{},@var{text})
+Returns all whitespace-separated words in @var{text} that @emph{do} match
+any of the @var{pattern} words, removing any words that @emph{do not}
+match. The patterns are written using @samp{%}, just like the patterns
+used in the @code{patsubst} function above.@refill
+
+The @code{filter} function can be used to separate out different types
+of strings (such as file names) in a variable. For example:
+
+@example
+sources := foo.c bar.c baz.s ugh.h
+foo: $(sources)
+ cc $(filter %.c %.s,$(sources)) -o foo
+@end example
+
+@noindent
+says that @file{foo} depends of @file{foo.c}, @file{bar.c},
+@file{baz.s} and @file{ugh.h} but only @file{foo.c}, @file{bar.c} and
+@file{baz.s} should be specified in the command to the
+compiler.@refill
+
+@item $(filter-out @var{pattern}@dots{},@var{text})
+@findex filter-out
+@cindex filtering out words
+@cindex words, filtering out
+Returns all whitespace-separated words in @var{text} that @emph{do not}
+match any of the @var{pattern} words, removing the words that @emph{do}
+match one or more. This is the exact opposite of the @code{filter}
+function.@refill
+
+For example, given:
+
+@example
+@group
+objects=main1.o foo.o main2.o bar.o
+mains=main1.o main2.o
+@end group
+@end example
+
+@noindent
+the following generates a list which contains all the object files not
+in @samp{mains}:
+
+@example
+$(filter-out $(mains),$(objects))
+@end example
+
+@need 1500
+@findex sort
+@cindex sorting words
+@item $(sort @var{list})
+Sorts the words of @var{list} in lexical order, removing duplicate
+words. The output is a list of words separated by single spaces.
+Thus,
+
+@example
+$(sort foo bar lose)
+@end example
+
+@noindent
+returns the value @samp{bar foo lose}.
+
+@cindex removing duplicate words
+@cindex duplicate words, removing
+@cindex words, removing duplicates
+Incidentally, since @code{sort} removes duplicate words, you can use
+it for this purpose even if you don't care about the sort order.
+
+@item $(word @var{n},@var{text})
+@findex word
+@cindex word, selecting a
+@cindex selecting a word
+Returns the @var{n}th word of @var{text}. The legitimate values of
+@var{n} start from 1. If @var{n} is bigger than the number of words
+in @var{text}, the value is empty. For example,
+
+@example
+$(word 2, foo bar baz)
+@end example
+
+@noindent
+returns @samp{bar}.
+
+@item $(wordlist @var{s},@var{e},@var{text})
+@findex wordlist
+@cindex words, selecting lists of
+@cindex selecting word lists
+Returns the list of words in @var{text} starting with word @var{s} and
+ending with word @var{e} (inclusive). The legitimate values of @var{s}
+start from 1; @var{e} may start from 0. If @var{s} is bigger than the
+number of words in @var{text}, the value is empty. If @var{e} is
+bigger than the number of words in @var{text}, words up to the end of
+@var{text} are returned. If @var{s} is greater than @var{e}, nothing
+is returned. For example,
+
+@example
+$(wordlist 2, 3, foo bar baz)
+@end example
+
+@noindent
+returns @samp{bar baz}.
+
+@c Following item phrased to prevent overfull hbox. --RJC 17 Jul 92
+@item $(words @var{text})
+@findex words
+@cindex words, finding number
+Returns the number of words in @var{text}.
+Thus, the last word of @var{text} is
+@w{@code{$(word $(words @var{text}),@var{text})}}.@refill
+
+@item $(firstword @var{names}@dots{})
+@findex firstword
+@cindex words, extracting first
+The argument @var{names} is regarded as a series of names, separated
+by whitespace. The value is the first name in the series. The rest
+of the names are ignored.
+
+For example,
+
+@example
+$(firstword foo bar)
+@end example
+
+@noindent
+produces the result @samp{foo}. Although @code{$(firstword
+@var{text})} is the same as @code{$(word 1,@var{text})}, the
+@code{firstword} function is retained for its simplicity.@refill
+
+
+@item $(lastword @var{names}@dots{})
+@findex lastword
+@cindex words, extracting last
+The argument @var{names} is regarded as a series of names, separated
+by whitespace. The value is the last name in the series.
+
+For example,
+
+@example
+$(lastword foo bar)
+@end example
+
+@noindent
+produces the result @samp{bar}. Although @code{$(lastword
+@var{text})} is the same as @code{$(word $(words @var{text}),@var{text})},
+the @code{lastword} function was added for its simplicity and better
+performance.@refill
+@end table
+
+
+Here is a realistic example of the use of @code{subst} and
+@code{patsubst}. Suppose that a makefile uses the @code{VPATH} variable
+to specify a list of directories that @code{make} should search for
+prerequisite files
+(@pxref{General Search, , @code{VPATH} Search Path for All Prerequisites}).
+This example shows how to
+tell the C compiler to search for header files in the same list of
+directories.@refill
+
+The value of @code{VPATH} is a list of directories separated by colons,
+such as @samp{src:../headers}. First, the @code{subst} function is used to
+change the colons to spaces:
+
+@example
+$(subst :, ,$(VPATH))
+@end example
+
+@noindent
+This produces @samp{src ../headers}. Then @code{patsubst} is used to turn
+each directory name into a @samp{-I} flag. These can be added to the
+value of the variable @code{CFLAGS}, which is passed automatically to the C
+compiler, like this:
+
+@example
+override CFLAGS += $(patsubst %,-I%,$(subst :, ,$(VPATH)))
+@end example
+
+@noindent
+The effect is to append the text @samp{-Isrc -I../headers} to the
+previously given value of @code{CFLAGS}. The @code{override} directive is
+used so that the new value is assigned even if the previous value of
+@code{CFLAGS} was specified with a command argument (@pxref{Override
+Directive, , The @code{override} Directive}).
+
+@node File Name Functions, Conditional Functions, Text Functions, Functions
+@section Functions for File Names
+@cindex functions, for file names
+@cindex file name functions
+
+Several of the built-in expansion functions relate specifically to
+taking apart file names or lists of file names.
+
+Each of the following functions performs a specific transformation on a
+file name. The argument of the function is regarded as a series of file
+names, separated by whitespace. (Leading and trailing whitespace is
+ignored.) Each file name in the series is transformed in the same way and
+the results are concatenated with single spaces between them.
+
+@table @code
+@item $(dir @var{names}@dots{})
+@findex dir
+@cindex directory part
+@cindex file name, directory part
+Extracts the directory-part of each file name in @var{names}. The
+directory-part of the file name is everything up through (and
+including) the last slash in it. If the file name contains no slash,
+the directory part is the string @samp{./}. For example,
+
+@example
+$(dir src/foo.c hacks)
+@end example
+
+@noindent
+produces the result @samp{src/ ./}.
+
+@item $(notdir @var{names}@dots{})
+@findex notdir
+@cindex file name, nondirectory part
+@cindex nondirectory part
+Extracts all but the directory-part of each file name in @var{names}.
+If the file name contains no slash, it is left unchanged. Otherwise,
+everything through the last slash is removed from it.
+
+A file name that ends with a slash becomes an empty string. This is
+unfortunate, because it means that the result does not always have the
+same number of whitespace-separated file names as the argument had;
+but we do not see any other valid alternative.
+
+For example,
+
+@example
+$(notdir src/foo.c hacks)
+@end example
+
+@noindent
+produces the result @samp{foo.c hacks}.
+
+@item $(suffix @var{names}@dots{})
+@findex suffix
+@cindex suffix, function to find
+@cindex file name suffix
+Extracts the suffix of each file name in @var{names}. If the file name
+contains a period, the suffix is everything starting with the last
+period. Otherwise, the suffix is the empty string. This frequently
+means that the result will be empty when @var{names} is not, and if
+@var{names} contains multiple file names, the result may contain fewer
+file names.
+
+For example,
+
+@example
+$(suffix src/foo.c src-1.0/bar.c hacks)
+@end example
+
+@noindent
+produces the result @samp{.c .c}.
+
+@item $(basename @var{names}@dots{})
+@findex basename
+@cindex basename
+@cindex file name, basename of
+Extracts all but the suffix of each file name in @var{names}. If the
+file name contains a period, the basename is everything starting up to
+(and not including) the last period. Periods in the directory part are
+ignored. If there is no period, the basename is the entire file name.
+For example,
+
+@example
+$(basename src/foo.c src-1.0/bar hacks)
+@end example
+
+@noindent
+produces the result @samp{src/foo src-1.0/bar hacks}.
+
+@c plural convention with dots (be consistent)
+@item $(addsuffix @var{suffix},@var{names}@dots{})
+@findex addsuffix
+@cindex suffix, adding
+@cindex file name suffix, adding
+The argument @var{names} is regarded as a series of names, separated
+by whitespace; @var{suffix} is used as a unit. The value of
+@var{suffix} is appended to the end of each individual name and the
+resulting larger names are concatenated with single spaces between
+them. For example,
+
+@example
+$(addsuffix .c,foo bar)
+@end example
+
+@noindent
+produces the result @samp{foo.c bar.c}.
+
+@item $(addprefix @var{prefix},@var{names}@dots{})
+@findex addprefix
+@cindex prefix, adding
+@cindex file name prefix, adding
+The argument @var{names} is regarded as a series of names, separated
+by whitespace; @var{prefix} is used as a unit. The value of
+@var{prefix} is prepended to the front of each individual name and the
+resulting larger names are concatenated with single spaces between
+them. For example,
+
+@example
+$(addprefix src/,foo bar)
+@end example
+
+@noindent
+produces the result @samp{src/foo src/bar}.
+
+@item $(join @var{list1},@var{list2})
+@findex join
+@cindex joining lists of words
+@cindex words, joining lists
+Concatenates the two arguments word by word: the two first words (one
+from each argument) concatenated form the first word of the result, the
+two second words form the second word of the result, and so on. So the
+@var{n}th word of the result comes from the @var{n}th word of each
+argument. If one argument has more words that the other, the extra
+words are copied unchanged into the result.
+
+For example, @samp{$(join a b,.c .o)} produces @samp{a.c b.o}.
+
+Whitespace between the words in the lists is not preserved; it is
+replaced with a single space.
+
+This function can merge the results of the @code{dir} and
+@code{notdir} functions, to produce the original list of files which
+was given to those two functions.@refill
+
+@item $(wildcard @var{pattern})
+@findex wildcard
+@cindex wildcard, function
+The argument @var{pattern} is a file name pattern, typically containing
+wildcard characters (as in shell file name patterns). The result of
+@code{wildcard} is a space-separated list of the names of existing files
+that match the pattern.
+@xref{Wildcards, ,Using Wildcard Characters in File Names}.
+
+@item $(realpath @var{names}@dots{})
+@findex realpath
+@cindex realpath
+@cindex file name, realpath of
+For each file name in @var{names} return the canonical absolute name.
+A canonical name does not contain any @code{.} or @code{..} components,
+nor any repeated path separators (@code{/}) or symlinks. In case of a
+failure the empty string is returned. Consult the @code{realpath(3)}
+documentation for a list of possible failure causes.
+
+@item $(abspath @var{names}@dots{})
+@findex abspath
+@cindex abspath
+@cindex file name, abspath of
+For each file name in @var{names} return an absolute name that does
+not contain any @code{.} or @code{..} components, nor any repeated path
+separators (@code{/}). Note that, in contrast to @code{realpath}
+function, @code{abspath} does not resolve symlinks and does not require
+the file names to refer to an existing file or directory. Use the
+@code{wildcard} function to test for existence.
+@end table
+
+@node Conditional Functions, Foreach Function, File Name Functions, Functions
+@section Functions for Conditionals
+@findex if
+@cindex conditional expansion
+There are three functions that provide conditional expansion. A key
+aspect of these functions is that not all of the arguments are
+expanded initially. Only those arguments which need to be expanded,
+will be expanded.
+
+@table @code
+@item $(if @var{condition},@var{then-part}[,@var{else-part}])
+@findex if
+The @code{if} function provides support for conditional expansion in a
+functional context (as opposed to the GNU @code{make} makefile
+conditionals such as @code{ifeq} (@pxref{Conditional Syntax, ,Syntax of
+Conditionals}).
+
+The first argument, @var{condition}, first has all preceding and
+trailing whitespace stripped, then is expanded. If it expands to any
+non-empty string, then the condition is considered to be true. If it
+expands to an empty string, the condition is considered to be false.
+
+If the condition is true then the second argument, @var{then-part}, is
+evaluated and this is used as the result of the evaluation of the entire
+@code{if} function.
+
+If the condition is false then the third argument, @var{else-part}, is
+evaluated and this is the result of the @code{if} function. If there is
+no third argument, the @code{if} function evaluates to nothing (the
+empty string).
+
+Note that only one of the @var{then-part} or the @var{else-part} will be
+evaluated, never both. Thus, either can contain side-effects (such as
+@code{shell} function calls, etc.)
+
+@item $(or @var{condition1}[,@var{condition2}[,@var{condition3}@dots{}]])
+@findex or
+The @code{or} function provides a ``short-circuiting'' OR operation.
+Each argument is expanded, in order. If an argument expands to a
+non-empty string the processing stops and the result of the expansion
+is that string. If, after all arguments are expanded, all of them are
+false (empty), then the result of the expansion is the empty string.
+
+@item $(and @var{condition1}[,@var{condition2}[,@var{condition3}@dots{}]])
+@findex and
+The @code{and} function provides a ``short-circuiting'' AND operation.
+Each argument is expanded, in order. If an argument expands to an
+empty string the processing stops and the result of the expansion is
+the empty string. If all arguments expand to a non-empty string then
+the result of the expansion is the expansion of the last argument.
+
+@end table
+
+@node Foreach Function, File Function, Conditional Functions, Functions
+@section The @code{foreach} Function
+@findex foreach
+@cindex words, iterating over
+
+The @code{foreach} function is very different from other functions. It
+causes one piece of text to be used repeatedly, each time with a different
+substitution performed on it. It resembles the @code{for} command in the
+shell @code{sh} and the @code{foreach} command in the C-shell @code{csh}.
+
+The syntax of the @code{foreach} function is:
+
+@example
+$(foreach @var{var},@var{list},@var{text})
+@end example
+
+@noindent
+The first two arguments, @var{var} and @var{list}, are expanded before
+anything else is done; note that the last argument, @var{text}, is
+@strong{not} expanded at the same time. Then for each word of the expanded
+value of @var{list}, the variable named by the expanded value of @var{var}
+is set to that word, and @var{text} is expanded. Presumably @var{text}
+contains references to that variable, so its expansion will be different
+each time.
+
+The result is that @var{text} is expanded as many times as there are
+whitespace-separated words in @var{list}. The multiple expansions of
+@var{text} are concatenated, with spaces between them, to make the result
+of @code{foreach}.
+
+This simple example sets the variable @samp{files} to the list of all files
+in the directories in the list @samp{dirs}:
+
+@example
+dirs := a b c d
+files := $(foreach dir,$(dirs),$(wildcard $(dir)/*))
+@end example
+
+Here @var{text} is @samp{$(wildcard $(dir)/*)}. The first repetition
+finds the value @samp{a} for @code{dir}, so it produces the same result
+as @samp{$(wildcard a/*)}; the second repetition produces the result
+of @samp{$(wildcard b/*)}; and the third, that of @samp{$(wildcard c/*)}.
+
+This example has the same result (except for setting @samp{dirs}) as
+the following example:
+
+@example
+files := $(wildcard a/* b/* c/* d/*)
+@end example
+
+When @var{text} is complicated, you can improve readability by giving it
+a name, with an additional variable:
+
+@example
+find_files = $(wildcard $(dir)/*)
+dirs := a b c d
+files := $(foreach dir,$(dirs),$(find_files))
+@end example
+
+@noindent
+Here we use the variable @code{find_files} this way. We use plain @samp{=}
+to define a recursively-expanding variable, so that its value contains an
+actual function call to be re-expanded under the control of @code{foreach};
+a simply-expanded variable would not do, since @code{wildcard} would be
+called only once at the time of defining @code{find_files}.
+
+The @code{foreach} function has no permanent effect on the variable
+@var{var}; its value and flavor after the @code{foreach} function call are
+the same as they were beforehand. The other values which are taken from
+@var{list} are in effect only temporarily, during the execution of
+@code{foreach}. The variable @var{var} is a simply-expanded variable
+during the execution of @code{foreach}. If @var{var} was undefined
+before the @code{foreach} function call, it is undefined after the call.
+@xref{Flavors, ,The Two Flavors of Variables}.@refill
+
+You must take care when using complex variable expressions that result in
+variable names because many strange things are valid variable names, but
+are probably not what you intended. For example,
+
+@smallexample
+files := $(foreach Esta-escrito-en-espanol!,b c ch,$(find_files))
+@end smallexample
+
+@noindent
+might be useful if the value of @code{find_files} references the variable
+whose name is @samp{Esta-escrito-en-espanol!} (es un nombre bastante largo,
+no?), but it is more likely to be a mistake.
+
+@node File Function, Call Function, Foreach Function, Functions
+@section The @code{file} Function
+@findex file
+@cindex writing to a file
+@cindex file, writing to
+@cindex reading from a file
+@cindex file, reading from
+
+The @code{file} function allows the makefile to write to or read from
+a file. Two modes of writing are supported: overwrite, where the text
+is written to the beginning of the file and any existing content is
+lost, and append, where the text is written to the end of the file,
+preserving the existing content. In both cases the file is created if
+it does not exist. It is a fatal error if the file cannot be opened
+for writing, or if the write operation fails. The @code{file}
+function expands to the empty string when writing to a file.
+
+When reading from a file, the @code{file} function expands to the
+verbatim contents of the file, except that the final newline (if there
+is one) will be stripped. Attempting to read from a non-existent file
+expands to the empty string.
+
+The syntax of the @code{file} function is:
+
+@example
+$(file @var{op} @var{filename}[,@var{text}])
+@end example
+
+When the @code{file} function is evaluated all its arguments are
+expanded first, then the file indicated by @var{filename} will be
+opened in the mode described by @var{op}.
+
+The operator @var{op} can be @code{>} to indicate the file will be
+overwritten with new content, @code{>>} to indicate the current
+contents of the file will be appended to, or @code{<} to indicate the
+contents of the file will be read in. The @var{filename} specifies
+the file to be written to or read from. There may optionally be
+whitespace between the operator and the file name.
+
+When reading files, it is an error to provide a @var{text} value.
+
+When writing files, @var{text} will be written to the file. If
+@var{text} does not already end in a newline a final newline will be
+written (even if @var{text} is the empty string). If the @var{text}
+argument is not given at all, nothing will be written.
+
+For example, the @code{file} function can be useful if your build
+system has a limited command line size and your recipe runs a command
+that can accept arguments from a file as well. Many commands use the
+convention that an argument prefixed with an @code{@@} specifies a
+file containing more arguments. Then you might write your recipe in
+this way:
+
+@example
+@group
+program: $(OBJECTS)
+ $(file >$@@.in,$^)
+ $(CMD) $(CMDFLAGS) @@$@@.in
+ @@rm $@@.in
+@end group
+@end example
+
+If the command required each argument to be on a separate line of the
+input file, you might write your recipe like this:
+
+@example
+@group
+program: $(OBJECTS)
+ $(file >$@@.in) $(foreach O,$^,$(file >>$@@.in,$O))
+ $(CMD) $(CMDFLAGS) @@$@@.in
+ @@rm $@@.in
+@end group
+@end example
+
+@node Call Function, Value Function, File Function, Functions
+@section The @code{call} Function
+@findex call
+@cindex functions, user defined
+@cindex user defined functions
+
+The @code{call} function is unique in that it can be used to create new
+parameterized functions. You can write a complex expression as the
+value of a variable, then use @code{call} to expand it with different
+values.
+
+The syntax of the @code{call} function is:
+
+@example
+$(call @var{variable},@var{param},@var{param},@dots{})
+@end example
+
+When @code{make} expands this function, it assigns each @var{param} to
+temporary variables @code{$(1)}, @code{$(2)}, etc. The variable
+@code{$(0)} will contain @var{variable}. There is no maximum number of
+parameter arguments. There is no minimum, either, but it doesn't make
+sense to use @code{call} with no parameters.
+
+Then @var{variable} is expanded as a @code{make} variable in the context
+of these temporary assignments. Thus, any reference to @code{$(1)} in
+the value of @var{variable} will resolve to the first @var{param} in the
+invocation of @code{call}.
+
+Note that @var{variable} is the @emph{name} of a variable, not a
+@emph{reference} to that variable. Therefore you would not normally use
+a @samp{$} or parentheses when writing it. (You can, however, use a
+variable reference in the name if you want the name not to be a
+constant.)
+
+If @var{variable} is the name of a built-in function, the built-in function
+is always invoked (even if a @code{make} variable by that name also
+exists).
+
+The @code{call} function expands the @var{param} arguments before
+assigning them to temporary variables. This means that @var{variable}
+values containing references to built-in functions that have special
+expansion rules, like @code{foreach} or @code{if}, may not work as you
+expect.
+
+Some examples may make this clearer.
+
+This macro simply reverses its arguments:
+
+@smallexample
+reverse = $(2) $(1)
+
+foo = $(call reverse,a,b)
+@end smallexample
+
+@noindent
+Here @var{foo} will contain @samp{b a}.
+
+This one is slightly more interesting: it defines a macro to search for
+the first instance of a program in @code{PATH}:
+
+@smallexample
+pathsearch = $(firstword $(wildcard $(addsuffix /$(1),$(subst :, ,$(PATH)))))
+
+LS := $(call pathsearch,ls)
+@end smallexample
+
+@noindent
+Now the variable LS contains @code{/bin/ls} or similar.
+
+The @code{call} function can be nested. Each recursive invocation gets
+its own local values for @code{$(1)}, etc.@: that mask the values of
+higher-level @code{call}. For example, here is an implementation of a
+@dfn{map} function:
+
+@smallexample
+map = $(foreach a,$(2),$(call $(1),$(a)))
+@end smallexample
+
+Now you can @var{map} a function that normally takes only one argument,
+such as @code{origin}, to multiple values in one step:
+
+@smallexample
+o = $(call map,origin,o map MAKE)
+@end smallexample
+
+and end up with @var{o} containing something like @samp{file file default}.
+
+A final caution: be careful when adding whitespace to the arguments to
+@code{call}. As with other functions, any whitespace contained in the
+second and subsequent arguments is kept; this can cause strange
+effects. It's generally safest to remove all extraneous whitespace when
+providing parameters to @code{call}.
+
+@node Value Function, Eval Function, Call Function, Functions
+@comment node-name, next, previous, up
+@section The @code{value} Function
+@findex value
+@cindex variables, unexpanded value
+
+The @code{value} function provides a way for you to use the value of a
+variable @emph{without} having it expanded. Please note that this
+does not undo expansions which have already occurred; for example if
+you create a simply expanded variable its value is expanded during the
+definition; in that case the @code{value} function will return the
+same result as using the variable directly.
+
+The syntax of the @code{value} function is:
+
+@example
+$(value @var{variable})
+@end example
+
+Note that @var{variable} is the @emph{name} of a variable, not a
+@emph{reference} to that variable. Therefore you would not normally
+use a @samp{$} or parentheses when writing it. (You can, however, use
+a variable reference in the name if you want the name not to be a
+constant.)
+
+The result of this function is a string containing the value of
+@var{variable}, without any expansion occurring. For example, in this
+makefile:
+
+@example
+@group
+FOO = $PATH
+
+all:
+ @@echo $(FOO)
+ @@echo $(value FOO)
+@end group
+@end example
+
+@noindent
+The first output line would be @code{ATH}, since the ``$P'' would be
+expanded as a @code{make} variable, while the second output line would
+be the current value of your @code{$PATH} environment variable, since
+the @code{value} function avoided the expansion.
+
+The @code{value} function is most often used in conjunction with the
+@code{eval} function (@pxref{Eval Function}).
+
+@node Eval Function, Origin Function, Value Function, Functions
+@comment node-name, next, previous, up
+@section The @code{eval} Function
+@findex eval
+@cindex evaluating makefile syntax
+@cindex makefile syntax, evaluating
+
+The @code{eval} function is very special: it allows you to define new
+makefile constructs that are not constant; which are the result of
+evaluating other variables and functions. The argument to the
+@code{eval} function is expanded, then the results of that expansion
+are parsed as makefile syntax. The expanded results can define new
+@code{make} variables, targets, implicit or explicit rules, etc.
+
+The result of the @code{eval} function is always the empty string;
+thus, it can be placed virtually anywhere in a makefile without
+causing syntax errors.
+
+It's important to realize that the @code{eval} argument is expanded
+@emph{twice}; first by the @code{eval} function, then the results of
+that expansion are expanded again when they are parsed as makefile
+syntax. This means you may need to provide extra levels of escaping
+for ``$'' characters when using @code{eval}. The @code{value}
+function (@pxref{Value Function}) can sometimes be useful in these
+situations, to circumvent unwanted expansions.
+
+Here is an example of how @code{eval} can be used; this example
+combines a number of concepts and other functions. Although it might
+seem overly complex to use @code{eval} in this example, rather than
+just writing out the rules, consider two things: first, the template
+definition (in @code{PROGRAM_template}) could need to be much more
+complex than it is here; and second, you might put the complex,
+``generic'' part of this example into another makefile, then include
+it in all the individual makefiles. Now your individual makefiles are
+quite straightforward.
+
+@example
+@group
+PROGRAMS = server client
+
+server_OBJS = server.o server_priv.o server_access.o
+server_LIBS = priv protocol
+
+client_OBJS = client.o client_api.o client_mem.o
+client_LIBS = protocol
+
+# Everything after this is generic
+
+.PHONY: all
+all: $(PROGRAMS)
+
+define PROGRAM_template =
+ $(1): $$($(1)_OBJS) $$($(1)_LIBS:%=-l%)
+ ALL_OBJS += $$($(1)_OBJS)
+endef
+
+$(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))
+
+$(PROGRAMS):
+ $(LINK.o) $^ $(LDLIBS) -o $@@
+
+clean:
+ rm -f $(ALL_OBJS) $(PROGRAMS)
+@end group
+@end example
+
+@node Origin Function, Flavor Function, Eval Function, Functions
+@section The @code{origin} Function
+@findex origin
+@cindex variables, origin of
+@cindex origin of variable
+
+The @code{origin} function is unlike most other functions in that it does
+not operate on the values of variables; it tells you something @emph{about}
+a variable. Specifically, it tells you where it came from.
+
+The syntax of the @code{origin} function is:
+
+@example
+$(origin @var{variable})
+@end example
+
+Note that @var{variable} is the @emph{name} of a variable to inquire about,
+not a @emph{reference} to that variable. Therefore you would not normally
+use a @samp{$} or parentheses when writing it. (You can, however, use a
+variable reference in the name if you want the name not to be a constant.)
+
+The result of this function is a string telling you how the variable
+@var{variable} was defined:
+
+@table @samp
+@item undefined
+
+if @var{variable} was never defined.
+
+@item default
+
+if @var{variable} has a default definition, as is usual with @code{CC}
+and so on. @xref{Implicit Variables, ,Variables Used by Implicit Rules}.
+Note that if you have redefined a default variable, the @code{origin}
+function will return the origin of the later definition.
+
+@item environment
+
+if @var{variable} was inherited from the environment provided to
+@code{make}.
+
+@item environment override
+
+if @var{variable} was inherited from the environment provided to
+@code{make}, and is overriding a setting for @var{variable} in the
+makefile as a result of the @w{@samp{-e}} option (@pxref{Options
+Summary, ,Summary of Options}).@refill
+
+@item file
+
+if @var{variable} was defined in a makefile.
+
+@item command line
+
+if @var{variable} was defined on the command line.
+
+@item override
+
+if @var{variable} was defined with an @code{override} directive in a
+makefile (@pxref{Override Directive, ,The @code{override} Directive}).
+
+@item automatic
+
+if @var{variable} is an automatic variable defined for the execution
+of the recipe for each rule (@pxref{Automatic Variables}).
+@end table
+
+This information is primarily useful (other than for your curiosity) to
+determine if you want to believe the value of a variable. For example,
+suppose you have a makefile @file{foo} that includes another makefile
+@file{bar}. You want a variable @code{bletch} to be defined in @file{bar}
+if you run the command @w{@samp{make -f bar}}, even if the environment contains
+a definition of @code{bletch}. However, if @file{foo} defined
+@code{bletch} before including @file{bar}, you do not want to override that
+definition. This could be done by using an @code{override} directive in
+@file{foo}, giving that definition precedence over the later definition in
+@file{bar}; unfortunately, the @code{override} directive would also
+override any command line definitions. So, @file{bar} could
+include:@refill
+
+@example
+@group
+ifdef bletch
+ifeq "$(origin bletch)" "environment"
+bletch = barf, gag, etc.
+endif
+endif
+@end group
+@end example
+
+@noindent
+If @code{bletch} has been defined from the environment, this will redefine
+it.
+
+If you want to override a previous definition of @code{bletch} if it came
+from the environment, even under @samp{-e}, you could instead write:
+
+@example
+@group
+ifneq "$(findstring environment,$(origin bletch))" ""
+bletch = barf, gag, etc.
+endif
+@end group
+@end example
+
+Here the redefinition takes place if @samp{$(origin bletch)} returns either
+@samp{environment} or @samp{environment override}.
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@node Flavor Function, Make Control Functions, Origin Function, Functions
+@section The @code{flavor} Function
+@findex flavor
+@cindex variables, flavor of
+@cindex flavor of variable
+
+The @code{flavor} function, like the @code{origin} function, does not
+operate on the values of variables but rather it tells you something
+@emph{about} a variable. Specifically, it tells you the flavor of a
+variable (@pxref{Flavors, ,The Two Flavors of Variables}).
+
+The syntax of the @code{flavor} function is:
+
+@example
+$(flavor @var{variable})
+@end example
+
+Note that @var{variable} is the @emph{name} of a variable to inquire about,
+not a @emph{reference} to that variable. Therefore you would not normally
+use a @samp{$} or parentheses when writing it. (You can, however, use a
+variable reference in the name if you want the name not to be a constant.)
+
+The result of this function is a string that identifies the flavor of the
+variable @var{variable}:
+
+@table @samp
+@item undefined
+
+if @var{variable} was never defined.
+
+@item recursive
+
+if @var{variable} is a recursively expanded variable.
+
+@item simple
+
+if @var{variable} is a simply expanded variable.
+
+@end table
+
+@node Make Control Functions, Shell Function, Flavor Function, Functions
+@section Functions That Control Make
+@cindex functions, for controlling make
+@cindex controlling make
+
+These functions control the way make runs. Generally, they are used to
+provide information to the user of the makefile or to cause make to stop
+if some sort of environmental error is detected.
+
+@table @code
+@item $(error @var{text}@dots{})
+@findex error
+@cindex error, stopping on
+@cindex stopping make
+Generates a fatal error where the message is @var{text}. Note that
+the error is generated whenever this function is evaluated. So, if
+you put it inside a recipe or on the right side of a recursive
+variable assignment, it won't be evaluated until later. The
+@var{text} will be expanded before the error is generated.
+
+For example,
+
+@example
+ifdef ERROR1
+$(error error is $(ERROR1))
+endif
+@end example
+
+@noindent
+will generate a fatal error during the read of the makefile if the
+@code{make} variable @code{ERROR1} is defined. Or,
+
+@example
+ERR = $(error found an error!)
+
+.PHONY: err
+err: ; $(ERR)
+@end example
+
+@noindent
+will generate a fatal error while @code{make} is running, if the
+@code{err} target is invoked.
+
+@item $(warning @var{text}@dots{})
+@findex warning
+@cindex warnings, printing
+@cindex printing user warnings
+This function works similarly to the @code{error} function, above,
+except that @code{make} doesn't exit. Instead, @var{text} is expanded
+and the resulting message is displayed, but processing of the makefile
+continues.
+
+The result of the expansion of this function is the empty string.
+
+@item $(info @var{text}@dots{})
+@findex info
+@cindex printing messages
+This function does nothing more than print its (expanded) argument(s)
+to standard output. No makefile name or line number is added. The
+result of the expansion of this function is the empty string.
+@end table
+
+@node Shell Function, Guile Function, Make Control Functions, Functions
+@section The @code{shell} Function
+@findex shell
+@cindex command expansion
+@cindex backquotes
+@cindex shell command, function for
+
+The @code{shell} function is unlike any other function other than the
+@code{wildcard} function
+(@pxref{Wildcard Function, ,The Function @code{wildcard}}) in that it
+communicates with the world outside of @code{make}.
+
+The @code{shell} function performs the same function that backquotes
+(@samp{`}) perform in most shells: it does @dfn{command expansion}.
+This means that it takes as an argument a shell command and evaluates
+to the output of the command. The only processing @code{make} does on
+the result is to convert each newline (or carriage-return / newline
+pair) to a single space. If there is a trailing (carriage-return
+and) newline it will simply be removed.@refill
+
+The commands run by calls to the @code{shell} function are run when the
+function calls are expanded (@pxref{Reading Makefiles, , How
+@code{make} Reads a Makefile}). Because this function involves
+spawning a new shell, you should carefully consider the performance
+implications of using the @code{shell} function within recursively
+expanded variables vs.@: simply expanded variables (@pxref{Flavors, ,The
+Two Flavors of Variables}).
+
+@vindex .SHELLSTATUS
+After the @code{shell} function or @samp{!=} assignment operator is
+used, its exit status is placed in the @code{.SHELLSTATUS} variable.
+
+Here are some examples of the use of the @code{shell} function:
+
+@example
+contents := $(shell cat foo)
+@end example
+
+@noindent
+sets @code{contents} to the contents of the file @file{foo}, with a space
+(rather than a newline) separating each line.
+
+@example
+files := $(shell echo *.c)
+@end example
+
+@noindent
+sets @code{files} to the expansion of @samp{*.c}. Unless @code{make} is
+using a very strange shell, this has the same result as
+@w{@samp{$(wildcard *.c)}} (as long as at least one @samp{.c} file
+exists).@refill
+
+@node Guile Function, , Shell Function, Functions
+@section The @code{guile} Function
+@findex guile
+@cindex Guile
+
+If GNU @code{make} is built with support for GNU Guile as an embedded
+extension language then the @code{guile} function will be available.
+The @code{guile} function takes one argument which is first expanded
+by @code{make} in the normal fashion, then passed to the GNU Guile
+evaluator. The result of the evaluator is converted into a string and
+used as the expansion of the @code{guile} function in the makefile.
+See @ref{Guile Integration, ,GNU Guile Integration} for details on
+writing extensions to @code{make} in Guile.
+
+You can determine whether GNU Guile support is available by checking
+the @code{.FEATURES} variable for the word @var{guile}.
+
+@node Running, Implicit Rules, Functions, Top
+@chapter How to Run @code{make}
+
+A makefile that says how to recompile a program can be used in more
+than one way. The simplest use is to recompile every file that is out
+of date. Usually, makefiles are written so that if you run
+@code{make} with no arguments, it does just that.
+
+But you might want to update only some of the files; you might want to use
+a different compiler or different compiler options; you might want just to
+find out which files are out of date without changing them.
+
+By giving arguments when you run @code{make}, you can do any of these
+things and many others.
+
+@cindex exit status of make
+The exit status of @code{make} is always one of three values:
+@table @code
+@item 0
+The exit status is zero if @code{make} is successful.
+@item 2
+The exit status is two if @code{make} encounters any errors.
+It will print messages describing the particular errors.
+@item 1
+The exit status is one if you use the @samp{-q} flag and @code{make}
+determines that some target is not already up to date.
+@xref{Instead of Execution, ,Instead of Executing Recipes}.
+@end table
+
+@menu
+* Makefile Arguments:: How to specify which makefile to use.
+* Goals:: How to use goal arguments to specify which
+ parts of the makefile to use.
+* Instead of Execution:: How to use mode flags to specify what
+ kind of thing to do with the recipes
+ in the makefile other than simply
+ execute them.
+* Avoiding Compilation:: How to avoid recompiling certain files.
+* Overriding:: How to override a variable to specify
+ an alternate compiler and other things.
+* Testing:: How to proceed past some errors, to
+ test compilation.
+* Options Summary:: Summary of Options
+@end menu
+
+@node Makefile Arguments, Goals, Running, Running
+@section Arguments to Specify the Makefile
+@cindex @code{--file}
+@cindex @code{--makefile}
+@cindex @code{-f}
+
+The way to specify the name of the makefile is with the @samp{-f} or
+@samp{--file} option (@samp{--makefile} also works). For example,
+@samp{-f altmake} says to use the file @file{altmake} as the makefile.
+
+If you use the @samp{-f} flag several times and follow each @samp{-f}
+with an argument, all the specified files are used jointly as
+makefiles.
+
+If you do not use the @samp{-f} or @samp{--file} flag, the default is
+to try @file{GNUmakefile}, @file{makefile}, and @file{Makefile}, in
+that order, and use the first of these three which exists or can be made
+(@pxref{Makefiles, ,Writing Makefiles}).@refill
+
+@node Goals, Instead of Execution, Makefile Arguments, Running
+@section Arguments to Specify the Goals
+@cindex goal, how to specify
+
+The @dfn{goals} are the targets that @code{make} should strive ultimately
+to update. Other targets are updated as well if they appear as
+prerequisites of goals, or prerequisites of prerequisites of goals, etc.
+
+By default, the goal is the first target in the makefile (not counting
+targets that start with a period). Therefore, makefiles are usually
+written so that the first target is for compiling the entire program or
+programs they describe. If the first rule in the makefile has several
+targets, only the first target in the rule becomes the default goal, not
+the whole list. You can manage the selection of the default goal from
+within your makefile using the @code{.DEFAULT_GOAL} variable
+(@pxref{Special Variables, , Other Special Variables}).
+
+You can also specify a different goal or goals with command line
+arguments to @code{make}. Use the name of the goal as an argument.
+If you specify several goals, @code{make} processes each of them in
+turn, in the order you name them.
+
+Any target in the makefile may be specified as a goal (unless it
+starts with @samp{-} or contains an @samp{=}, in which case it will be
+parsed as a switch or variable definition, respectively). Even
+targets not in the makefile may be specified, if @code{make} can find
+implicit rules that say how to make them.
+
+@vindex MAKECMDGOALS
+@code{Make} will set the special variable @code{MAKECMDGOALS} to the
+list of goals you specified on the command line. If no goals were given
+on the command line, this variable is empty. Note that this variable
+should be used only in special circumstances.
+
+An example of appropriate use is to avoid including @file{.d} files
+during @code{clean} rules (@pxref{Automatic Prerequisites}), so
+@code{make} won't create them only to immediately remove them
+again:@refill
+
+@example
+@group
+sources = foo.c bar.c
+
+ifneq ($(MAKECMDGOALS),clean)
+include $(sources:.c=.d)
+endif
+@end group
+@end example
+
+One use of specifying a goal is if you want to compile only a part of
+the program, or only one of several programs. Specify as a goal each
+file that you wish to remake. For example, consider a directory containing
+several programs, with a makefile that starts like this:
+
+@example
+.PHONY: all
+all: size nm ld ar as
+@end example
+
+If you are working on the program @code{size}, you might want to say
+@w{@samp{make size}} so that only the files of that program are recompiled.
+
+Another use of specifying a goal is to make files that are not normally
+made. For example, there may be a file of debugging output, or a
+version of the program that is compiled specially for testing, which has
+a rule in the makefile but is not a prerequisite of the default goal.
+
+Another use of specifying a goal is to run the recipe associated with
+a phony target (@pxref{Phony Targets}) or empty target (@pxref{Empty
+Targets, ,Empty Target Files to Record Events}). Many makefiles contain
+a phony target named @file{clean} which deletes everything except source
+files. Naturally, this is done only if you request it explicitly with
+@w{@samp{make clean}}. Following is a list of typical phony and empty
+target names. @xref{Standard Targets}, for a detailed list of all the
+standard target names which GNU software packages use.
+
+@table @file
+@item all
+@cindex @code{all} @r{(standard target)}
+Make all the top-level targets the makefile knows about.
+
+@item clean
+@cindex @code{clean} @r{(standard target)}
+Delete all files that are normally created by running @code{make}.
+
+@item mostlyclean
+@cindex @code{mostlyclean} @r{(standard target)}
+Like @samp{clean}, but may refrain from deleting a few files that people
+normally don't want to recompile. For example, the @samp{mostlyclean}
+target for GCC does not delete @file{libgcc.a}, because recompiling it
+is rarely necessary and takes a lot of time.
+
+@item distclean
+@cindex @code{distclean} @r{(standard target)}
+@itemx realclean
+@cindex @code{realclean} @r{(standard target)}
+@itemx clobber
+@cindex @code{clobber} @r{(standard target)}
+Any of these targets might be defined to delete @emph{more} files than
+@samp{clean} does. For example, this would delete configuration files
+or links that you would normally create as preparation for compilation,
+even if the makefile itself cannot create these files.
+
+@item install
+@cindex @code{install} @r{(standard target)}
+Copy the executable file into a directory that users typically search
+for commands; copy any auxiliary files that the executable uses into
+the directories where it will look for them.
+
+@item print
+@cindex @code{print} @r{(standard target)}
+Print listings of the source files that have changed.
+
+@item tar
+@cindex @code{tar} @r{(standard target)}
+Create a tar file of the source files.
+
+@item shar
+@cindex @code{shar} @r{(standard target)}
+Create a shell archive (shar file) of the source files.
+
+@item dist
+@cindex @code{dist} @r{(standard target)}
+Create a distribution file of the source files. This might
+be a tar file, or a shar file, or a compressed version of one of the
+above, or even more than one of the above.
+
+@item TAGS
+@cindex @code{TAGS} @r{(standard target)}
+Update a tags table for this program.
+
+@item check
+@cindex @code{check} @r{(standard target)}
+@itemx test
+@cindex @code{test} @r{(standard target)}
+Perform self tests on the program this makefile builds.
+@end table
+
+@node Instead of Execution, Avoiding Compilation, Goals, Running
+@section Instead of Executing Recipes
+@cindex execution, instead of
+@cindex recipes, instead of executing
+
+The makefile tells @code{make} how to tell whether a target is up to date,
+and how to update each target. But updating the targets is not always
+what you want. Certain options specify other activities for @code{make}.
+
+@comment Extra blank lines make it print better.
+@table @samp
+@item -n
+@itemx --just-print
+@itemx --dry-run
+@itemx --recon
+@cindex @code{--just-print}
+@cindex @code{--dry-run}
+@cindex @code{--recon}
+@cindex @code{-n}
+
+``No-op''. Causes @code{make} to print the recipes that are needed to
+make the targets up to date, but not actually execute them. Note that
+some recipes are still executed, even with this flag (@pxref{MAKE
+Variable, ,How the @code{MAKE} Variable Works}). Also any recipes
+needed to update included makefiles are still executed
+(@pxref{Remaking Makefiles, ,How Makefiles Are Remade}).
+
+@item -t
+@itemx --touch
+@cindex @code{--touch}
+@cindex touching files
+@cindex target, touching
+@cindex @code{-t}
+
+``Touch''. Marks targets as up to date without actually changing
+them. In other words, @code{make} pretends to update the targets but
+does not really change their contents; instead only their modified
+times are updated.
+
+@item -q
+@itemx --question
+@cindex @code{--question}
+@cindex @code{-q}
+@cindex question mode
+
+``Question''. Silently check whether the targets are up to date, but
+do not execute recipes; the exit code shows whether any updates are
+needed.
+
+@item -W @var{file}
+@itemx --what-if=@var{file}
+@itemx --assume-new=@var{file}
+@itemx --new-file=@var{file}
+@cindex @code{--what-if}
+@cindex @code{-W}
+@cindex @code{--assume-new}
+@cindex @code{--new-file}
+@cindex what if
+@cindex files, assuming new
+
+``What if''. Each @samp{-W} flag is followed by a file name. The given
+files' modification times are recorded by @code{make} as being the present
+time, although the actual modification times remain the same.
+You can use the @samp{-W} flag in conjunction with the @samp{-n} flag
+to see what would happen if you were to modify specific files.@refill
+@end table
+
+With the @samp{-n} flag, @code{make} prints the recipe that it would
+normally execute but usually does not execute it.
+
+With the @samp{-t} flag, @code{make} ignores the recipes in the rules
+and uses (in effect) the command @code{touch} for each target that needs to
+be remade. The @code{touch} command is also printed, unless @samp{-s} or
+@code{.SILENT} is used. For speed, @code{make} does not actually invoke
+the program @code{touch}. It does the work directly.
+
+With the @samp{-q} flag, @code{make} prints nothing and executes no
+recipes, but the exit status code it returns is zero if and only if the
+targets to be considered are already up to date. If the exit status is
+one, then some updating needs to be done. If @code{make} encounters an
+error, the exit status is two, so you can distinguish an error from a
+target that is not up to date.
+
+It is an error to use more than one of these three flags in the same
+invocation of @code{make}.
+
+@cindex +, and recipe execution
+The @samp{-n}, @samp{-t}, and @samp{-q} options do not affect recipe
+lines that begin with @samp{+} characters or contain the strings
+@samp{$(MAKE)} or @samp{$@{MAKE@}}. Note that only the line containing
+the @samp{+} character or the strings @samp{$(MAKE)} or @samp{$@{MAKE@}}
+is run regardless of these options. Other lines in the same rule are
+not run unless they too begin with @samp{+} or contain @samp{$(MAKE)} or
+@samp{$@{MAKE@}} (@xref{MAKE Variable, ,How the @code{MAKE} Variable Works}.)
+
+@cindex phony targets and recipe execution
+The @samp{-t} flag prevents phony targets (@pxref{Phony Targets}) from
+being updated, unless there are recipe lines beginning with @samp{+}
+or containing @samp{$(MAKE)} or @samp{$@{MAKE@}}.
+
+The @samp{-W} flag provides two features:
+
+@itemize @bullet
+@item
+If you also use the @samp{-n} or @samp{-q} flag, you can see what
+@code{make} would do if you were to modify some files.
+
+@item
+Without the @samp{-n} or @samp{-q} flag, when @code{make} is actually
+executing recipes, the @samp{-W} flag can direct @code{make} to act as
+if some files had been modified, without actually running the recipes
+for those files.@refill
+@end itemize
+
+Note that the options @samp{-p} and @samp{-v} allow you to obtain other
+information about @code{make} or about the makefiles in use
+(@pxref{Options Summary, ,Summary of Options}).@refill
+
+@node Avoiding Compilation, Overriding, Instead of Execution, Running
+@section Avoiding Recompilation of Some Files
+@cindex @code{-o}
+@cindex @code{--old-file}
+@cindex @code{--assume-old}
+@cindex files, assuming old
+@cindex files, avoiding recompilation of
+@cindex recompilation, avoiding
+
+Sometimes you may have changed a source file but you do not want to
+recompile all the files that depend on it. For example, suppose you add
+a macro or a declaration to a header file that many other files depend
+on. Being conservative, @code{make} assumes that any change in the
+header file requires recompilation of all dependent files, but you know
+that they do not need to be recompiled and you would rather not waste
+the time waiting for them to compile.
+
+If you anticipate the problem before changing the header file, you can
+use the @samp{-t} flag. This flag tells @code{make} not to run the
+recipes in the rules, but rather to mark the target up to date by
+changing its last-modification date. You would follow this procedure:
+
+@enumerate
+@item
+Use the command @samp{make} to recompile the source files that really
+need recompilation, ensuring that the object files are up-to-date
+before you begin.
+
+@item
+Make the changes in the header files.
+
+@item
+Use the command @samp{make -t} to mark all the object files as
+up to date. The next time you run @code{make}, the changes in the
+header files will not cause any recompilation.
+@end enumerate
+
+If you have already changed the header file at a time when some files
+do need recompilation, it is too late to do this. Instead, you can
+use the @w{@samp{-o @var{file}}} flag, which marks a specified file as
+``old'' (@pxref{Options Summary, ,Summary of Options}). This means
+that the file itself will not be remade, and nothing else will be
+remade on its account. Follow this procedure:
+
+@enumerate
+@item
+Recompile the source files that need compilation for reasons independent
+of the particular header file, with @samp{make -o @var{headerfile}}.
+If several header files are involved, use a separate @samp{-o} option
+for each header file.
+
+@item
+Touch all the object files with @samp{make -t}.
+@end enumerate
+
+@node Overriding, Testing, Avoiding Compilation, Running
+@section Overriding Variables
+@cindex overriding variables with arguments
+@cindex variables, overriding with arguments
+@cindex command line variables
+@cindex variables, command line
+
+An argument that contains @samp{=} specifies the value of a variable:
+@samp{@var{v}=@var{x}} sets the value of the variable @var{v} to @var{x}.
+If you specify a value in this way, all ordinary assignments of the same
+variable in the makefile are ignored; we say they have been
+@dfn{overridden} by the command line argument.
+
+The most common way to use this facility is to pass extra flags to
+compilers. For example, in a properly written makefile, the variable
+@code{CFLAGS} is included in each recipe that runs the C compiler, so a
+file @file{foo.c} would be compiled something like this:
+
+@example
+cc -c $(CFLAGS) foo.c
+@end example
+
+Thus, whatever value you set for @code{CFLAGS} affects each compilation
+that occurs. The makefile probably specifies the usual value for
+@code{CFLAGS}, like this:
+
+@example
+CFLAGS=-g
+@end example
+
+Each time you run @code{make}, you can override this value if you
+wish. For example, if you say @samp{make CFLAGS='-g -O'}, each C
+compilation will be done with @samp{cc -c -g -O}. (This also
+illustrates how you can use quoting in the shell to enclose spaces and
+other special characters in the value of a variable when you override
+it.)
+
+The variable @code{CFLAGS} is only one of many standard variables that
+exist just so that you can change them this way. @xref{Implicit
+Variables, , Variables Used by Implicit Rules}, for a complete list.
+
+You can also program the makefile to look at additional variables of your
+own, giving the user the ability to control other aspects of how the
+makefile works by changing the variables.
+
+When you override a variable with a command line argument, you can
+define either a recursively-expanded variable or a simply-expanded
+variable. The examples shown above make a recursively-expanded
+variable; to make a simply-expanded variable, write @samp{:=} or
+@samp{::=} instead of @samp{=}. But, unless you want to include a
+variable reference or function call in the @emph{value} that you
+specify, it makes no difference which kind of variable you create.
+
+There is one way that the makefile can change a variable that you have
+overridden. This is to use the @code{override} directive, which is a line
+that looks like this: @samp{override @var{variable} = @var{value}}
+(@pxref{Override Directive, ,The @code{override} Directive}).
+
+@node Testing, Options Summary, Overriding, Running
+@section Testing the Compilation of a Program
+@cindex testing compilation
+@cindex compilation, testing
+
+Normally, when an error happens in executing a shell command, @code{make}
+gives up immediately, returning a nonzero status. No further recipes are
+executed for any target. The error implies that the goal cannot be
+correctly remade, and @code{make} reports this as soon as it knows.
+
+When you are compiling a program that you have just changed, this is not
+what you want. Instead, you would rather that @code{make} try compiling
+every file that can be tried, to show you as many compilation errors
+as possible.
+
+@cindex @code{-k}
+@cindex @code{--keep-going}
+On these occasions, you should use the @samp{-k} or
+@samp{--keep-going} flag. This tells @code{make} to continue to
+consider the other prerequisites of the pending targets, remaking them
+if necessary, before it gives up and returns nonzero status. For
+example, after an error in compiling one object file, @samp{make -k}
+will continue compiling other object files even though it already
+knows that linking them will be impossible. In addition to continuing
+after failed shell commands, @samp{make -k} will continue as much as
+possible after discovering that it does not know how to make a target
+or prerequisite file. This will always cause an error message, but
+without @samp{-k}, it is a fatal error (@pxref{Options Summary,
+,Summary of Options}).@refill
+
+The usual behavior of @code{make} assumes that your purpose is to get the
+goals up to date; once @code{make} learns that this is impossible, it might
+as well report the failure immediately. The @samp{-k} flag says that the
+real purpose is to test as much as possible of the changes made in the
+program, perhaps to find several independent problems so that you can
+correct them all before the next attempt to compile. This is why Emacs'
+@kbd{M-x compile} command passes the @samp{-k} flag by default.
+
+@node Options Summary, , Testing, Running
+@section Summary of Options
+@cindex options
+@cindex flags
+@cindex switches
+
+Here is a table of all the options @code{make} understands:
+
+@table @samp
+@item -b
+@cindex @code{-b}
+@itemx -m
+@cindex @code{-m}
+These options are ignored for compatibility with other versions of @code{make}.
+
+@item -B
+@cindex @code{-B}
+@itemx --always-make
+@cindex @code{--always-make}
+Consider all targets out-of-date. GNU @code{make} proceeds to
+consider targets and their prerequisites using the normal algorithms;
+however, all targets so considered are always remade regardless of the
+status of their prerequisites. To avoid infinite recursion, if
+@code{MAKE_RESTARTS} (@pxref{Special Variables, , Other Special
+Variables}) is set to a number greater than 0 this option is disabled
+when considering whether to remake makefiles (@pxref{Remaking
+Makefiles, , How Makefiles Are Remade}).
+
+@item -C @var{dir}
+@cindex @code{-C}
+@itemx --directory=@var{dir}
+@cindex @code{--directory}
+Change to directory @var{dir} before reading the makefiles. If multiple
+@samp{-C} options are specified, each is interpreted relative to the
+previous one: @samp{-C / -C etc} is equivalent to @samp{-C /etc}.
+This is typically used with recursive invocations of @code{make}
+(@pxref{Recursion, ,Recursive Use of @code{make}}).
+
+@item -d
+@cindex @code{-d}
+@c Extra blank line here makes the table look better.
+
+Print debugging information in addition to normal processing. The
+debugging information says which files are being considered for
+remaking, which file-times are being compared and with what results,
+which files actually need to be remade, which implicit rules are
+considered and which are applied---everything interesting about how
+@code{make} decides what to do. The @code{-d} option is equivalent to
+@samp{--debug=a} (see below).
+
+@item --debug[=@var{options}]
+@cindex @code{--debug}
+@c Extra blank line here makes the table look better.
+
+Print debugging information in addition to normal processing. Various
+levels and types of output can be chosen. With no arguments, print the
+``basic'' level of debugging. Possible arguments are below; only the
+first character is considered, and values must be comma- or
+space-separated.
+
+@table @code
+@item a (@i{all})
+All types of debugging output are enabled. This is equivalent to using
+@samp{-d}.
+
+@item b (@i{basic})
+Basic debugging prints each target that was found to be out-of-date, and
+whether the build was successful or not.
+
+@item v (@i{verbose})
+A level above @samp{basic}; includes messages about which makefiles were
+parsed, prerequisites that did not need to be rebuilt, etc. This option
+also enables @samp{basic} messages.
+
+@item i (@i{implicit})
+Prints messages describing the implicit rule searches for each target.
+This option also enables @samp{basic} messages.
+
+@item j (@i{jobs})
+Prints messages giving details on the invocation of specific sub-commands.
+
+@item m (@i{makefile})
+By default, the above messages are not enabled while trying to remake
+the makefiles. This option enables messages while rebuilding makefiles,
+too. Note that the @samp{all} option does enable this option. This
+option also enables @samp{basic} messages.
+
+@item n (@i{none})
+Disable all debugging currently enabled. If additional debugging
+flags are encountered after this they will still take effect.
+@end table
+
+@item -e
+@cindex @code{-e}
+@itemx --environment-overrides
+@cindex @code{--environment-overrides}
+Give variables taken from the environment precedence
+over variables from makefiles.
+@xref{Environment, ,Variables from the Environment}.
+
+@item --eval=@var{string}
+@cindex @code{--eval}
+@c Extra blank line here makes the table look better.
+
+Evaluate @var{string} as makefile syntax. This is a command-line
+version of the @code{eval} function (@pxref{Eval Function}). The
+evaluation is performed after the default rules and variables have
+been defined, but before any makefiles are read.
+
+@item -f @var{file}
+@cindex @code{-f}
+@itemx --file=@var{file}
+@cindex @code{--file}
+@itemx --makefile=@var{file}
+@cindex @code{--makefile}
+Read the file named @var{file} as a makefile.
+@xref{Makefiles, ,Writing Makefiles}.
+
+@item -h
+@cindex @code{-h}
+@itemx --help
+@cindex @code{--help}
+@c Extra blank line here makes the table look better.
+
+Remind you of the options that @code{make} understands and then exit.
+
+@item -i
+@cindex @code{-i}
+@itemx --ignore-errors
+@cindex @code{--ignore-errors}
+Ignore all errors in recipes executed to remake files.
+@xref{Errors, ,Errors in Recipes}.
+
+@item -I @var{dir}
+@cindex @code{-I}
+@itemx --include-dir=@var{dir}
+@cindex @code{--include-dir}
+Specifies a directory @var{dir} to search for included makefiles.
+@xref{Include, ,Including Other Makefiles}. If several @samp{-I}
+options are used to specify several directories, the directories are
+searched in the order specified.
+
+@item -j [@var{jobs}]
+@cindex @code{-j}
+@itemx --jobs[=@var{jobs}]
+@cindex @code{--jobs}
+Specifies the number of recipes (jobs) to run simultaneously. With no
+argument, @code{make} runs as many recipes simultaneously as possible.
+If there is more than one @samp{-j} option, the last one is effective.
+@xref{Parallel, ,Parallel Execution}, for more information on how
+recipes are run. Note that this option is ignored on MS-DOS.
+
+@item -k
+@cindex @code{-k}
+@itemx --keep-going
+@cindex @code{--keep-going}
+Continue as much as possible after an error. While the target that
+failed, and those that depend on it, cannot be remade, the other
+prerequisites of these targets can be processed all the same.
+@xref{Testing, ,Testing the Compilation of a Program}.
+
+@item -l [@var{load}]
+@cindex @code{-l}
+@itemx --load-average[=@var{load}]
+@cindex @code{--load-average}
+@itemx --max-load[=@var{load}]
+@cindex @code{--max-load}
+Specifies that no new recipes should be started if there are other
+recipes running and the load average is at least @var{load} (a
+floating-point number). With no argument, removes a previous load
+limit. @xref{Parallel, ,Parallel Execution}.
+
+@item -L
+@cindex @code{-L}
+@itemx --check-symlink-times
+@cindex @code{--check-symlink-times}
+On systems that support symbolic links, this option causes @code{make}
+to consider the timestamps on any symbolic links in addition to the
+timestamp on the file referenced by those links. When this option is
+provided, the most recent timestamp among the file and the symbolic
+links is taken as the modification time for this target file.
+
+@item -n
+@cindex @code{-n}
+@itemx --just-print
+@cindex @code{--just-print}
+@itemx --dry-run
+@cindex @code{--dry-run}
+@itemx --recon
+@cindex @code{--recon}
+@c Extra blank line here makes the table look better.
+
+Print the recipe that would be executed, but do not execute it (except
+in certain circumstances).
+@xref{Instead of Execution, ,Instead of Executing Recipes}.
+
+@item -o @var{file}
+@cindex @code{-o}
+@itemx --old-file=@var{file}
+@cindex @code{--old-file}
+@itemx --assume-old=@var{file}
+@cindex @code{--assume-old}
+Do not remake the file @var{file} even if it is older than its
+prerequisites, and do not remake anything on account of changes in
+@var{file}. Essentially the file is treated as very old and its rules
+are ignored. @xref{Avoiding Compilation, ,Avoiding Recompilation of
+Some Files}.@refill
+
+@item -O[@var{type}]
+@cindex @code{-O}
+@itemx --output-sync[=@var{type}]
+@cindex @code{--output-sync}
+@cindex output during parallel execution
+@cindex parallel execution, output during
+Ensure that the complete output from each recipe is printed in one
+uninterrupted sequence. This option is only useful when using the
+@code{--jobs} option to run multiple recipes simultaneously
+(@pxref{Parallel, ,Parallel Execution}) Without this option output
+will be displayed as it is generated by the recipes.@refill
+
+With no type or the type @samp{target}, output from the entire recipe
+of each target is grouped together. With the type @samp{line}, output
+from each line in the recipe is grouped together. With the type
+@samp{recurse}, the output from an entire recursive make is grouped
+together. With the type @samp{none}, no output synchronization is
+performed. @xref{Parallel Output, ,Output During Parallel Execution}.
+
+@item -p
+@cindex @code{-p}
+@itemx --print-data-base
+@cindex @code{--print-data-base}
+@cindex data base of @code{make} rules
+@cindex predefined rules and variables, printing
+Print the data base (rules and variable values) that results from
+reading the makefiles; then execute as usual or as otherwise
+specified. This also prints the version information given by the
+@samp{-v} switch (see below). To print the data base without trying
+to remake any files, use @w{@samp{make -qp}}. To print the data base
+of predefined rules and variables, use @w{@samp{make -p -f /dev/null}}.
+The data base output contains file name and line number information for
+recipe and variable definitions, so it can be a useful debugging tool
+in complex environments.
+
+@item -q
+@cindex @code{-q}
+@itemx --question
+@cindex @code{--question}
+``Question mode''. Do not run any recipes, or print anything; just
+return an exit status that is zero if the specified targets are already
+up to date, one if any remaking is required, or two if an error is
+encountered. @xref{Instead of Execution, ,Instead of Executing
+Recipes}.@refill
+
+@item -r
+@cindex @code{-r}
+@itemx --no-builtin-rules
+@cindex @code{--no-builtin-rules}
+Eliminate use of the built-in implicit rules (@pxref{Implicit Rules,
+,Using Implicit Rules}). You can still define your own by writing
+pattern rules (@pxref{Pattern Rules, ,Defining and Redefining Pattern
+Rules}). The @samp{-r} option also clears out the default list of
+suffixes for suffix rules (@pxref{Suffix Rules, ,Old-Fashioned Suffix
+Rules}). But you can still define your own suffixes with a rule for
+@code{.SUFFIXES}, and then define your own suffix rules. Note that only
+@emph{rules} are affected by the @code{-r} option; default variables
+remain in effect (@pxref{Implicit Variables, ,Variables Used by Implicit
+Rules}); see the @samp{-R} option below.
+
+@item -R
+@cindex @code{-R}
+@itemx --no-builtin-variables
+@cindex @code{--no-builtin-variables}
+Eliminate use of the built-in rule-specific variables (@pxref{Implicit
+Variables, ,Variables Used by Implicit Rules}). You can still define
+your own, of course. The @samp{-R} option also automatically enables
+the @samp{-r} option (see above), since it doesn't make sense to have
+implicit rules without any definitions for the variables that they use.
+
+@item -s
+@cindex @code{-s}
+@itemx --silent
+@cindex @code{--silent}
+@itemx --quiet
+@cindex @code{--quiet}
+@c Extra blank line here makes the table look better.
+
+Silent operation; do not print the recipes as they are executed.
+@xref{Echoing, ,Recipe Echoing}.
+
+@item -S
+@cindex @code{-S}
+@itemx --no-keep-going
+@cindex @code{--no-keep-going}
+@itemx --stop
+@cindex @code{--stop}
+@c Extra blank line here makes the table look better.
+
+Cancel the effect of the @samp{-k} option. This is never necessary
+except in a recursive @code{make} where @samp{-k} might be inherited
+from the top-level @code{make} via @code{MAKEFLAGS}
+(@pxref{Recursion, ,Recursive Use of @code{make}})
+or if you set @samp{-k} in @code{MAKEFLAGS} in your environment.@refill
+
+@item -t
+@cindex @code{-t}
+@itemx --touch
+@cindex @code{--touch}
+@c Extra blank line here makes the table look better.
+
+Touch files (mark them up to date without really changing them)
+instead of running their recipes. This is used to pretend that the
+recipes were done, in order to fool future invocations of
+@code{make}. @xref{Instead of Execution, ,Instead of Executing Recipes}.
+
+@item --trace
+@cindex @code{--trace}
+Show tracing information for @code{make} execution. Prints the entire
+recipe to be executed, even for recipes that are normally silent (due
+to @code{.SILENT} or @samp{@@}). Also prints the makefile name and
+line number where the recipe was defined, and information on why the
+target is being rebuilt.
+
+@item -v
+@cindex @code{-v}
+@itemx --version
+@cindex @code{--version}
+Print the version of the @code{make} program plus a copyright, a list
+of authors, and a notice that there is no warranty; then exit.
+
+@item -w
+@cindex @code{-w}
+@itemx --print-directory
+@cindex @code{--print-directory}
+Print a message containing the working directory both before and after
+executing the makefile. This may be useful for tracking down errors
+from complicated nests of recursive @code{make} commands.
+@xref{Recursion, ,Recursive Use of @code{make}}. (In practice, you
+rarely need to specify this option since @samp{make} does it for you;
+see @ref{-w Option, ,The @samp{--print-directory} Option}.)
+
+@item --no-print-directory
+@cindex @code{--no-print-directory}
+Disable printing of the working directory under @code{-w}.
+This option is useful when @code{-w} is turned on automatically,
+but you do not want to see the extra messages.
+@xref{-w Option, ,The @samp{--print-directory} Option}.
+
+@item -W @var{file}
+@cindex @code{-W}
+@itemx --what-if=@var{file}
+@cindex @code{--what-if}
+@itemx --new-file=@var{file}
+@cindex @code{--new-file}
+@itemx --assume-new=@var{file}
+@cindex @code{--assume-new}
+Pretend that the target @var{file} has just been modified. When used
+with the @samp{-n} flag, this shows you what would happen if you were
+to modify that file. Without @samp{-n}, it is almost the same as
+running a @code{touch} command on the given file before running
+@code{make}, except that the modification time is changed only in the
+imagination of @code{make}.
+@xref{Instead of Execution, ,Instead of Executing Recipes}.
+
+@item --warn-undefined-variables
+@cindex @code{--warn-undefined-variables}
+@cindex variables, warning for undefined
+@cindex undefined variables, warning message
+Issue a warning message whenever @code{make} sees a reference to an
+undefined variable. This can be helpful when you are trying to debug
+makefiles which use variables in complex ways.
+@end table
+
+@node Implicit Rules, Archives, Running, Top
+@chapter Using Implicit Rules
+@cindex implicit rule
+@cindex rule, implicit
+
+Certain standard ways of remaking target files are used very often. For
+example, one customary way to make an object file is from a C source file
+using the C compiler, @code{cc}.
+
+@dfn{Implicit rules} tell @code{make} how to use customary techniques so
+that you do not have to specify them in detail when you want to use
+them. For example, there is an implicit rule for C compilation. File
+names determine which implicit rules are run. For example, C
+compilation typically takes a @file{.c} file and makes a @file{.o} file.
+So @code{make} applies the implicit rule for C compilation when it sees
+this combination of file name endings.@refill
+
+A chain of implicit rules can apply in sequence; for example, @code{make}
+will remake a @file{.o} file from a @file{.y} file by way of a @file{.c} file.
+@iftex
+@xref{Chained Rules, ,Chains of Implicit Rules}.
+@end iftex
+
+The built-in implicit rules use several variables in their recipes so
+that, by changing the values of the variables, you can change the way the
+implicit rule works. For example, the variable @code{CFLAGS} controls the
+flags given to the C compiler by the implicit rule for C compilation.
+@iftex
+@xref{Implicit Variables, ,Variables Used by Implicit Rules}.
+@end iftex
+
+You can define your own implicit rules by writing @dfn{pattern rules}.
+@iftex
+@xref{Pattern Rules, ,Defining and Redefining Pattern Rules}.
+@end iftex
+
+@dfn{Suffix rules} are a more limited way to define implicit rules.
+Pattern rules are more general and clearer, but suffix rules are
+retained for compatibility.
+@iftex
+@xref{Suffix Rules, ,Old-Fashioned Suffix Rules}.
+@end iftex
+
+@menu
+* Using Implicit:: How to use an existing implicit rule
+ to get the recipes for updating a file.
+* Catalogue of Rules:: A list of built-in rules.
+* Implicit Variables:: How to change what predefined rules do.
+* Chained Rules:: How to use a chain of implicit rules.
+* Pattern Rules:: How to define new implicit rules.
+* Last Resort:: How to define a recipe for rules which
+ cannot find any.
+* Suffix Rules:: The old-fashioned style of implicit rule.
+* Implicit Rule Search:: The precise algorithm for applying
+ implicit rules.
+@end menu
+
+@node Using Implicit, Catalogue of Rules, Implicit Rules, Implicit Rules
+@section Using Implicit Rules
+@cindex implicit rule, how to use
+@cindex rule, implicit, how to use
+
+To allow @code{make} to find a customary method for updating a target
+file, all you have to do is refrain from specifying recipes yourself.
+Either write a rule with no recipe, or don't write a rule at all.
+Then @code{make} will figure out which implicit rule to use based on
+which kind of source file exists or can be made.
+
+For example, suppose the makefile looks like this:
+
+@example
+foo : foo.o bar.o
+ cc -o foo foo.o bar.o $(CFLAGS) $(LDFLAGS)
+@end example
+
+@noindent
+Because you mention @file{foo.o} but do not give a rule for it, @code{make}
+will automatically look for an implicit rule that tells how to update it.
+This happens whether or not the file @file{foo.o} currently exists.
+
+If an implicit rule is found, it can supply both a recipe and one or
+more prerequisites (the source files). You would want to write a rule
+for @file{foo.o} with no recipe if you need to specify additional
+prerequisites, such as header files, that the implicit rule cannot
+supply.
+
+Each implicit rule has a target pattern and prerequisite patterns. There may
+be many implicit rules with the same target pattern. For example, numerous
+rules make @samp{.o} files: one, from a @samp{.c} file with the C compiler;
+another, from a @samp{.p} file with the Pascal compiler; and so on. The rule
+that actually applies is the one whose prerequisites exist or can be made.
+So, if you have a file @file{foo.c}, @code{make} will run the C compiler;
+otherwise, if you have a file @file{foo.p}, @code{make} will run the Pascal
+compiler; and so on.
+
+Of course, when you write the makefile, you know which implicit rule you
+want @code{make} to use, and you know it will choose that one because you
+know which possible prerequisite files are supposed to exist.
+@xref{Catalogue of Rules, ,Catalogue of Built-In Rules},
+for a catalogue of all the predefined implicit rules.
+
+Above, we said an implicit rule applies if the required prerequisites ``exist
+or can be made''. A file ``can be made'' if it is mentioned explicitly in
+the makefile as a target or a prerequisite, or if an implicit rule can be
+recursively found for how to make it. When an implicit prerequisite is the
+result of another implicit rule, we say that @dfn{chaining} is occurring.
+@xref{Chained Rules, ,Chains of Implicit Rules}.
+
+In general, @code{make} searches for an implicit rule for each target, and
+for each double-colon rule, that has no recipe. A file that is mentioned
+only as a prerequisite is considered a target whose rule specifies nothing,
+so implicit rule search happens for it. @xref{Implicit Rule Search, ,Implicit Rule Search Algorithm}, for the
+details of how the search is done.
+
+Note that explicit prerequisites do not influence implicit rule search.
+For example, consider this explicit rule:
+
+@example
+foo.o: foo.p
+@end example
+
+@noindent
+The prerequisite on @file{foo.p} does not necessarily mean that
+@code{make} will remake @file{foo.o} according to the implicit rule to
+make an object file, a @file{.o} file, from a Pascal source file, a
+@file{.p} file. For example, if @file{foo.c} also exists, the implicit
+rule to make an object file from a C source file is used instead,
+because it appears before the Pascal rule in the list of predefined
+implicit rules (@pxref{Catalogue of Rules, , Catalogue of Built-In
+Rules}).
+
+If you do not want an implicit rule to be used for a target that has no
+recipe, you can give that target an empty recipe by writing a semicolon
+(@pxref{Empty Recipes, ,Defining Empty Recipes}).
+
+@node Catalogue of Rules, Implicit Variables, Using Implicit, Implicit Rules
+@section Catalogue of Built-In Rules
+@cindex implicit rule, predefined
+@cindex rule, implicit, predefined
+
+Here is a catalogue of predefined implicit rules which are always
+available unless the makefile explicitly overrides or cancels them.
+@xref{Canceling Rules, ,Canceling Implicit Rules}, for information on
+canceling or overriding an implicit rule. The @samp{-r} or
+@samp{--no-builtin-rules} option cancels all predefined rules.
+
+This manual only documents the default rules available on POSIX-based
+operating systems. Other operating systems, such as VMS, Windows,
+OS/2, etc. may have different sets of default rules. To see the full
+list of default rules and variables available in your version of GNU
+@code{make}, run @samp{make -p} in a directory with no makefile.
+
+Not all of these rules will always be defined, even when the @samp{-r}
+option is not given. Many of the predefined implicit rules are
+implemented in @code{make} as suffix rules, so which ones will be
+defined depends on the @dfn{suffix list} (the list of prerequisites of
+the special target @code{.SUFFIXES}). The default suffix list is:
+@code{.out}, @code{.a}, @code{.ln}, @code{.o}, @code{.c}, @code{.cc},
+@code{.C}, @code{.cpp}, @code{.p}, @code{.f}, @code{.F}, @code{.m},
+@code{.r}, @code{.y}, @code{.l}, @code{.ym}, @code{.lm}, @code{.s},
+@code{.S}, @code{.mod}, @code{.sym}, @code{.def}, @code{.h},
+@code{.info}, @code{.dvi}, @code{.tex}, @code{.texinfo}, @code{.texi},
+@code{.txinfo}, @code{.w}, @code{.ch} @code{.web}, @code{.sh},
+@code{.elc}, @code{.el}. All of the implicit rules described below
+whose prerequisites have one of these suffixes are actually suffix
+rules. If you modify the suffix list, the only predefined suffix
+rules in effect will be those named by one or two of the suffixes that
+are on the list you specify; rules whose suffixes fail to be on the
+list are disabled. @xref{Suffix Rules, ,Old-Fashioned Suffix Rules},
+for full details on suffix rules.
+
+@table @asis
+@item Compiling C programs
+@cindex C, rule to compile
+@pindex cc
+@pindex gcc
+@pindex .o
+@pindex .c
+@file{@var{n}.o} is made automatically from @file{@var{n}.c} with
+a recipe of the form @samp{$(CC) $(CPPFLAGS) $(CFLAGS) -c}.@refill
+
+@item Compiling C++ programs
+@cindex C++, rule to compile
+@pindex g++
+@pindex .cc
+@pindex .cpp
+@pindex .C
+@file{@var{n}.o} is made automatically from @file{@var{n}.cc},
+@file{@var{n}.cpp}, or @file{@var{n}.C} with a recipe of the form
+@samp{$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c}. We encourage you to use the
+suffix @samp{.cc} for C++ source files instead of @samp{.C}.@refill
+
+@item Compiling Pascal programs
+@cindex Pascal, rule to compile
+@pindex pc
+@pindex .p
+@file{@var{n}.o} is made automatically from @file{@var{n}.p}
+with the recipe @samp{$(PC) $(PFLAGS) -c}.@refill
+
+@item Compiling Fortran and Ratfor programs
+@cindex Fortran, rule to compile
+@cindex Ratfor, rule to compile
+@pindex f77
+@pindex .f
+@pindex .r
+@pindex .F
+@file{@var{n}.o} is made automatically from @file{@var{n}.r},
+@file{@var{n}.F} or @file{@var{n}.f} by running the
+Fortran compiler. The precise recipe used is as follows:@refill
+
+@table @samp
+@item .f
+@samp{$(FC) $(FFLAGS) -c}.
+@item .F
+@samp{$(FC) $(FFLAGS) $(CPPFLAGS) -c}.
+@item .r
+@samp{$(FC) $(FFLAGS) $(RFLAGS) -c}.
+@end table
+
+@item Preprocessing Fortran and Ratfor programs
+@file{@var{n}.f} is made automatically from @file{@var{n}.r} or
+@file{@var{n}.F}. This rule runs just the preprocessor to convert a
+Ratfor or preprocessable Fortran program into a strict Fortran
+program. The precise recipe used is as follows:@refill
+
+@table @samp
+@item .F
+@samp{$(FC) $(CPPFLAGS) $(FFLAGS) -F}.
+@item .r
+@samp{$(FC) $(FFLAGS) $(RFLAGS) -F}.
+@end table
+
+@item Compiling Modula-2 programs
+@cindex Modula-2, rule to compile
+@pindex m2c
+@pindex .sym
+@pindex .def
+@pindex .mod
+@file{@var{n}.sym} is made from @file{@var{n}.def} with a recipe
+of the form @samp{$(M2C) $(M2FLAGS) $(DEFFLAGS)}. @file{@var{n}.o}
+is made from @file{@var{n}.mod}; the form is:
+@w{@samp{$(M2C) $(M2FLAGS) $(MODFLAGS)}}.@refill
+
+@need 1200
+@item Assembling and preprocessing assembler programs
+@cindex assembly, rule to compile
+@pindex as
+@pindex .s
+@file{@var{n}.o} is made automatically from @file{@var{n}.s} by
+running the assembler, @code{as}. The precise recipe is
+@samp{$(AS) $(ASFLAGS)}.@refill
+
+@pindex .S
+@file{@var{n}.s} is made automatically from @file{@var{n}.S} by
+running the C preprocessor, @code{cpp}. The precise recipe is
+@w{@samp{$(CPP) $(CPPFLAGS)}}.
+
+@item Linking a single object file
+@cindex linking, predefined rule for
+@pindex ld
+@pindex .o
+@file{@var{n}} is made automatically from @file{@var{n}.o} by running
+the linker (usually called @code{ld}) via the C compiler. The precise
+recipe used is @w{@samp{$(CC) $(LDFLAGS) @var{n}.o $(LOADLIBES) $(LDLIBS)}}.
+
+This rule does the right thing for a simple program with only one
+source file. It will also do the right thing if there are multiple
+object files (presumably coming from various other source files), one
+of which has a name matching that of the executable file. Thus,
+
+@example
+x: y.o z.o
+@end example
+
+@noindent
+when @file{x.c}, @file{y.c} and @file{z.c} all exist will execute:
+
+@example
+@group
+cc -c x.c -o x.o
+cc -c y.c -o y.o
+cc -c z.c -o z.o
+cc x.o y.o z.o -o x
+rm -f x.o
+rm -f y.o
+rm -f z.o
+@end group
+@end example
+
+@noindent
+In more complicated cases, such as when there is no object file whose
+name derives from the executable file name, you must write an explicit
+recipe for linking.
+
+Each kind of file automatically made into @samp{.o} object files will
+be automatically linked by using the compiler (@samp{$(CC)},
+@samp{$(FC)} or @samp{$(PC)}; the C compiler @samp{$(CC)} is used to
+assemble @samp{.s} files) without the @samp{-c} option. This could be
+done by using the @samp{.o} object files as intermediates, but it is
+faster to do the compiling and linking in one step, so that's how it's
+done.@refill
+
+@item Yacc for C programs
+@pindex yacc
+@cindex Yacc, rule to run
+@pindex .y
+@file{@var{n}.c} is made automatically from @file{@var{n}.y} by
+running Yacc with the recipe @samp{$(YACC) $(YFLAGS)}.
+
+@item Lex for C programs
+@pindex lex
+@cindex Lex, rule to run
+@pindex .l
+@file{@var{n}.c} is made automatically from @file{@var{n}.l} by
+running Lex. The actual recipe is @samp{$(LEX) $(LFLAGS)}.
+
+@item Lex for Ratfor programs
+@file{@var{n}.r} is made automatically from @file{@var{n}.l} by
+running Lex. The actual recipe is @samp{$(LEX) $(LFLAGS)}.
+
+The convention of using the same suffix @samp{.l} for all Lex files
+regardless of whether they produce C code or Ratfor code makes it
+impossible for @code{make} to determine automatically which of the two
+languages you are using in any particular case. If @code{make} is
+called upon to remake an object file from a @samp{.l} file, it must
+guess which compiler to use. It will guess the C compiler, because
+that is more common. If you are using Ratfor, make sure @code{make}
+knows this by mentioning @file{@var{n}.r} in the makefile. Or, if you
+are using Ratfor exclusively, with no C files, remove @samp{.c} from
+the list of implicit rule suffixes with:@refill
+
+@example
+@group
+.SUFFIXES:
+.SUFFIXES: .o .r .f .l @dots{}
+@end group
+@end example
+
+@item Making Lint Libraries from C, Yacc, or Lex programs
+@pindex lint
+@cindex @code{lint}, rule to run
+@pindex .ln
+@file{@var{n}.ln} is made from @file{@var{n}.c} by running @code{lint}.
+The precise recipe is @w{@samp{$(LINT) $(LINTFLAGS) $(CPPFLAGS) -i}}.
+The same recipe is used on the C code produced from
+@file{@var{n}.y} or @file{@var{n}.l}.@refill
+
+@item @TeX{} and Web
+@cindex @TeX{}, rule to run
+@cindex Web, rule to run
+@pindex tex
+@pindex cweave
+@pindex weave
+@pindex tangle
+@pindex ctangle
+@pindex .dvi
+@pindex .tex
+@pindex .web
+@pindex .w
+@pindex .ch
+@file{@var{n}.dvi} is made from @file{@var{n}.tex} with the recipe
+@samp{$(TEX)}. @file{@var{n}.tex} is made from @file{@var{n}.web} with
+@samp{$(WEAVE)}, or from @file{@var{n}.w} (and from @file{@var{n}.ch} if
+it exists or can be made) with @samp{$(CWEAVE)}. @file{@var{n}.p} is
+made from @file{@var{n}.web} with @samp{$(TANGLE)} and @file{@var{n}.c}
+is made from @file{@var{n}.w} (and from @file{@var{n}.ch} if it exists
+or can be made) with @samp{$(CTANGLE)}.@refill
+
+@item Texinfo and Info
+@cindex Texinfo, rule to format
+@cindex Info, rule to format
+@pindex texi2dvi
+@pindex makeinfo
+@pindex .texinfo
+@pindex .info
+@pindex .texi
+@pindex .txinfo
+@file{@var{n}.dvi} is made from @file{@var{n}.texinfo},
+@file{@var{n}.texi}, or @file{@var{n}.txinfo}, with the recipe
+@w{@samp{$(TEXI2DVI) $(TEXI2DVI_FLAGS)}}. @file{@var{n}.info} is made from
+@file{@var{n}.texinfo}, @file{@var{n}.texi}, or @file{@var{n}.txinfo}, with
+the recipe @w{@samp{$(MAKEINFO) $(MAKEINFO_FLAGS)}}.
+
+@item RCS
+@cindex RCS, rule to extract from
+@pindex co
+@pindex ,v @r{(RCS file extension)}
+Any file @file{@var{n}} is extracted if necessary from an RCS file
+named either @file{@var{n},v} or @file{RCS/@var{n},v}. The precise
+recipe used is @w{@samp{$(CO) $(COFLAGS)}}. @file{@var{n}} will not be
+extracted from RCS if it already exists, even if the RCS file is
+newer. The rules for RCS are terminal
+(@pxref{Match-Anything Rules, ,Match-Anything Pattern Rules}),
+so RCS files cannot be generated from another source; they must
+actually exist.@refill
+
+@item SCCS
+@cindex SCCS, rule to extract from
+@pindex get
+@pindex s. @r{(SCCS file prefix)}
+Any file @file{@var{n}} is extracted if necessary from an SCCS file
+named either @file{s.@var{n}} or @file{SCCS/s.@var{n}}. The precise
+recipe used is @w{@samp{$(GET) $(GFLAGS)}}. The rules for SCCS are
+terminal (@pxref{Match-Anything Rules, ,Match-Anything Pattern Rules}),
+so SCCS files cannot be generated from another source; they must
+actually exist.@refill
+
+@pindex .sh
+For the benefit of SCCS, a file @file{@var{n}} is copied from
+@file{@var{n}.sh} and made executable (by everyone). This is for
+shell scripts that are checked into SCCS. Since RCS preserves the
+execution permission of a file, you do not need to use this feature
+with RCS.@refill
+
+We recommend that you avoid using of SCCS. RCS is widely held to be
+superior, and is also free. By choosing free software in place of
+comparable (or inferior) proprietary software, you support the free
+software movement.
+@end table
+
+Usually, you want to change only the variables listed in the table
+above, which are documented in the following section.
+
+However, the recipes in built-in implicit rules actually use
+variables such as @code{COMPILE.c}, @code{LINK.p}, and
+@code{PREPROCESS.S}, whose values contain the recipes listed above.
+
+@code{make} follows the convention that the rule to compile a
+@file{.@var{x}} source file uses the variable @code{COMPILE.@var{x}}.
+Similarly, the rule to produce an executable from a @file{.@var{x}}
+file uses @code{LINK.@var{x}}; and the rule to preprocess a
+@file{.@var{x}} file uses @code{PREPROCESS.@var{x}}.
+
+@vindex OUTPUT_OPTION
+Every rule that produces an object file uses the variable
+@code{OUTPUT_OPTION}. @code{make} defines this variable either to
+contain @samp{-o $@@}, or to be empty, depending on a compile-time
+option. You need the @samp{-o} option to ensure that the output goes
+into the right file when the source file is in a different directory,
+as when using @code{VPATH} (@pxref{Directory Search}). However,
+compilers on some systems do not accept a @samp{-o} switch for object
+files. If you use such a system, and use @code{VPATH}, some
+compilations will put their output in the wrong place.
+A possible workaround for this problem is to give @code{OUTPUT_OPTION}
+the value @w{@samp{; mv $*.o $@@}}.
+
+@node Implicit Variables, Chained Rules, Catalogue of Rules, Implicit Rules
+@section Variables Used by Implicit Rules
+@cindex flags for compilers
+
+The recipes in built-in implicit rules make liberal use of certain
+predefined variables. You can alter the values of these variables in
+the makefile, with arguments to @code{make}, or in the environment to
+alter how the implicit rules work without redefining the rules
+themselves. You can cancel all variables used by implicit rules with
+the @samp{-R} or @samp{--no-builtin-variables} option.
+
+For example, the recipe used to compile a C source file actually says
+@samp{$(CC) -c $(CFLAGS) $(CPPFLAGS)}. The default values of the variables
+used are @samp{cc} and nothing, resulting in the command @samp{cc -c}. By
+redefining @samp{CC} to @samp{ncc}, you could cause @samp{ncc} to be
+used for all C compilations performed by the implicit rule. By redefining
+@samp{CFLAGS} to be @samp{-g}, you could pass the @samp{-g} option to
+each compilation. @emph{All} implicit rules that do C compilation use
+@samp{$(CC)} to get the program name for the compiler and @emph{all}
+include @samp{$(CFLAGS)} among the arguments given to the compiler.@refill
+
+The variables used in implicit rules fall into two classes: those that are
+names of programs (like @code{CC}) and those that contain arguments for the
+programs (like @code{CFLAGS}). (The ``name of a program'' may also contain
+some command arguments, but it must start with an actual executable program
+name.) If a variable value contains more than one argument, separate them
+with spaces.
+
+The following tables describe of some of the more commonly-used predefined
+variables. This list is not exhaustive, and the default values shown here may
+not be what @code{make} selects for your environment. To see the
+complete list of predefined variables for your instance of GNU @code{make} you
+can run @samp{make -p} in a directory with no makefiles.
+
+Here is a table of some of the more common variables used as names of
+programs in built-in rules:
+
+@table @code
+@item AR
+@vindex AR
+Archive-maintaining program; default @samp{ar}.
+@pindex ar
+
+@item AS
+@vindex AS
+Program for compiling assembly files; default @samp{as}.
+@pindex as
+
+@item CC
+@vindex CC
+Program for compiling C programs; default @samp{cc}.
+@pindex cc
+
+@item CXX
+@vindex CXX
+Program for compiling C++ programs; default @samp{g++}.
+@pindex g++
+
+@item CPP
+@vindex CPP
+Program for running the C preprocessor, with results to standard output;
+default @samp{$(CC) -E}.
+
+@item FC
+@vindex FC
+Program for compiling or preprocessing Fortran and Ratfor programs;
+default @samp{f77}.
+@pindex f77
+
+@item M2C
+@vindex M2C
+Program to use to compile Modula-2 source code; default @samp{m2c}.
+@pindex m2c
+
+@item PC
+@vindex PC
+Program for compiling Pascal programs; default @samp{pc}.
+@pindex pc
+
+@item CO
+@vindex CO
+Program for extracting a file from RCS; default @samp{co}.
+@pindex co
+
+@item GET
+@vindex GET
+Program for extracting a file from SCCS; default @samp{get}.
+@pindex get
+
+@item LEX
+@vindex LEX
+Program to use to turn Lex grammars into source code; default @samp{lex}.
+@pindex lex
+
+@item YACC
+@vindex YACC
+Program to use to turn Yacc grammars into source code; default @samp{yacc}.
+@pindex yacc
+
+@item LINT
+@vindex LINT
+Program to use to run lint on source code; default @samp{lint}.
+@pindex lint
+
+@item MAKEINFO
+@vindex MAKEINFO
+Program to convert a Texinfo source file into an Info file; default
+@samp{makeinfo}.
+@pindex makeinfo
+
+@item TEX
+@vindex TEX
+Program to make @TeX{} @sc{dvi} files from @TeX{} source;
+default @samp{tex}.
+@pindex tex
+
+@item TEXI2DVI
+@vindex TEXI2DVI
+Program to make @TeX{} @sc{dvi} files from Texinfo source;
+default @samp{texi2dvi}.
+@pindex texi2dvi
+
+@item WEAVE
+@vindex WEAVE
+Program to translate Web into @TeX{}; default @samp{weave}.
+@pindex weave
+
+@item CWEAVE
+@vindex CWEAVE
+Program to translate C Web into @TeX{}; default @samp{cweave}.
+@pindex cweave
+
+@item TANGLE
+@vindex TANGLE
+Program to translate Web into Pascal; default @samp{tangle}.
+@pindex tangle
+
+@item CTANGLE
+@vindex CTANGLE
+Program to translate C Web into C; default @samp{ctangle}.
+@pindex ctangle
+
+@item RM
+@vindex RM
+Command to remove a file; default @samp{rm -f}.
+@pindex rm
+@end table
+
+Here is a table of variables whose values are additional arguments for the
+programs above. The default values for all of these is the empty
+string, unless otherwise noted.
+
+@table @code
+@item ARFLAGS
+@vindex ARFLAGS
+Flags to give the archive-maintaining program; default @samp{rv}.
+
+@item ASFLAGS
+@vindex ASFLAGS
+Extra flags to give to the assembler (when explicitly
+invoked on a @samp{.s} or @samp{.S} file).
+
+@item CFLAGS
+@vindex CFLAGS
+Extra flags to give to the C compiler.
+
+@item CXXFLAGS
+@vindex CXXFLAGS
+Extra flags to give to the C++ compiler.
+
+@item COFLAGS
+@vindex COFLAGS
+Extra flags to give to the RCS @code{co} program.
+
+@item CPPFLAGS
+@vindex CPPFLAGS
+Extra flags to give to the C preprocessor and programs
+that use it (the C and Fortran compilers).
+
+@item FFLAGS
+@vindex FFLAGS
+Extra flags to give to the Fortran compiler.
+
+@item GFLAGS
+@vindex GFLAGS
+Extra flags to give to the SCCS @code{get} program.
+
+@item LDFLAGS
+@vindex LDFLAGS
+Extra flags to give to compilers when they are supposed to invoke the linker,
+@samp{ld}, such as @code{-L}. Libraries (@code{-lfoo}) should be
+added to the @code{LDLIBS} variable instead.
+
+@item LDLIBS
+@vindex LDLIBS
+@vindex LOADLIBES
+Library flags or names given to compilers when they are supposed to
+invoke the linker, @samp{ld}. @code{LOADLIBES} is a deprecated (but
+still supported) alternative to @code{LDLIBS}. Non-library linker
+flags, such as @code{-L}, should go in the @code{LDFLAGS} variable.
+
+@item LFLAGS
+@vindex LFLAGS
+Extra flags to give to Lex.
+
+@item YFLAGS
+@vindex YFLAGS
+Extra flags to give to Yacc.
+
+@item PFLAGS
+@vindex PFLAGS
+Extra flags to give to the Pascal compiler.
+
+@item RFLAGS
+@vindex RFLAGS
+Extra flags to give to the Fortran compiler for Ratfor programs.
+
+@item LINTFLAGS
+@vindex LINTFLAGS
+Extra flags to give to lint.
+@end table
+
+@node Chained Rules, Pattern Rules, Implicit Variables, Implicit Rules
+@section Chains of Implicit Rules
+
+@cindex chains of rules
+@cindex rule, implicit, chains of
+Sometimes a file can be made by a sequence of implicit rules. For example,
+a file @file{@var{n}.o} could be made from @file{@var{n}.y} by running
+first Yacc and then @code{cc}. Such a sequence is called a @dfn{chain}.
+
+If the file @file{@var{n}.c} exists, or is mentioned in the makefile, no
+special searching is required: @code{make} finds that the object file can
+be made by C compilation from @file{@var{n}.c}; later on, when considering
+how to make @file{@var{n}.c}, the rule for running Yacc is
+used. Ultimately both @file{@var{n}.c} and @file{@var{n}.o} are
+updated.@refill
+
+@cindex intermediate files
+@cindex files, intermediate
+However, even if @file{@var{n}.c} does not exist and is not mentioned,
+@code{make} knows how to envision it as the missing link between
+@file{@var{n}.o} and @file{@var{n}.y}! In this case, @file{@var{n}.c} is
+called an @dfn{intermediate file}. Once @code{make} has decided to use the
+intermediate file, it is entered in the data base as if it had been
+mentioned in the makefile, along with the implicit rule that says how to
+create it.@refill
+
+Intermediate files are remade using their rules just like all other
+files. But intermediate files are treated differently in two ways.
+
+The first difference is what happens if the intermediate file does not
+exist. If an ordinary file @var{b} does not exist, and @code{make}
+considers a target that depends on @var{b}, it invariably creates
+@var{b} and then updates the target from @var{b}. But if @var{b} is an
+intermediate file, then @code{make} can leave well enough alone. It
+won't bother updating @var{b}, or the ultimate target, unless some
+prerequisite of @var{b} is newer than that target or there is some other
+reason to update that target.
+
+The second difference is that if @code{make} @emph{does} create @var{b}
+in order to update something else, it deletes @var{b} later on after it
+is no longer needed. Therefore, an intermediate file which did not
+exist before @code{make} also does not exist after @code{make}.
+@code{make} reports the deletion to you by printing a @samp{rm -f}
+command showing which file it is deleting.
+
+Ordinarily, a file cannot be intermediate if it is mentioned in the
+makefile as a target or prerequisite. However, you can explicitly mark a
+file as intermediate by listing it as a prerequisite of the special target
+@code{.INTERMEDIATE}. This takes effect even if the file is mentioned
+explicitly in some other way.
+
+@cindex intermediate files, preserving
+@cindex preserving intermediate files
+@cindex secondary files
+You can prevent automatic deletion of an intermediate file by marking it
+as a @dfn{secondary} file. To do this, list it as a prerequisite of the
+special target @code{.SECONDARY}. When a file is secondary, @code{make}
+will not create the file merely because it does not already exist, but
+@code{make} does not automatically delete the file. Marking a file as
+secondary also marks it as intermediate.
+
+You can list the target pattern of an implicit rule (such as @samp{%.o})
+as a prerequisite of the special target @code{.PRECIOUS} to preserve
+intermediate files made by implicit rules whose target patterns match
+that file's name; see @ref{Interrupts}.@refill
+@cindex preserving with @code{.PRECIOUS}
+@cindex @code{.PRECIOUS} intermediate files
+
+A chain can involve more than two implicit rules. For example, it is
+possible to make a file @file{foo} from @file{RCS/foo.y,v} by running RCS,
+Yacc and @code{cc}. Then both @file{foo.y} and @file{foo.c} are
+intermediate files that are deleted at the end.@refill
+
+No single implicit rule can appear more than once in a chain. This means
+that @code{make} will not even consider such a ridiculous thing as making
+@file{foo} from @file{foo.o.o} by running the linker twice. This
+constraint has the added benefit of preventing any infinite loop in the
+search for an implicit rule chain.
+
+There are some special implicit rules to optimize certain cases that would
+otherwise be handled by rule chains. For example, making @file{foo} from
+@file{foo.c} could be handled by compiling and linking with separate
+chained rules, using @file{foo.o} as an intermediate file. But what
+actually happens is that a special rule for this case does the compilation
+and linking with a single @code{cc} command. The optimized rule is used in
+preference to the step-by-step chain because it comes earlier in the
+ordering of rules.
+
+@node Pattern Rules, Last Resort, Chained Rules, Implicit Rules
+@section Defining and Redefining Pattern Rules
+
+You define an implicit rule by writing a @dfn{pattern rule}. A pattern
+rule looks like an ordinary rule, except that its target contains the
+character @samp{%} (exactly one of them). The target is considered a
+pattern for matching file names; the @samp{%} can match any nonempty
+substring, while other characters match only themselves. The prerequisites
+likewise use @samp{%} to show how their names relate to the target name.
+
+Thus, a pattern rule @samp{%.o : %.c} says how to make any file
+@file{@var{stem}.o} from another file @file{@var{stem}.c}.@refill
+
+Note that expansion using @samp{%} in pattern rules occurs
+@strong{after} any variable or function expansions, which take place
+when the makefile is read. @xref{Using Variables, , How to Use
+Variables}, and @ref{Functions, ,Functions for Transforming Text}.
+
+@menu
+* Pattern Intro:: An introduction to pattern rules.
+* Pattern Examples:: Examples of pattern rules.
+* Automatic Variables:: How to use automatic variables in the
+ recipe of implicit rules.
+* Pattern Match:: How patterns match.
+* Match-Anything Rules:: Precautions you should take prior to
+ defining rules that can match any
+ target file whatever.
+* Canceling Rules:: How to override or cancel built-in rules.
+@end menu
+
+@node Pattern Intro, Pattern Examples, Pattern Rules, Pattern Rules
+@subsection Introduction to Pattern Rules
+@cindex pattern rule
+@cindex rule, pattern
+
+A pattern rule contains the character @samp{%} (exactly one of them)
+in the target; otherwise, it looks exactly like an ordinary rule. The
+target is a pattern for matching file names; the @samp{%} matches any
+nonempty substring, while other characters match only themselves.
+@cindex target pattern, implicit
+@cindex @code{%}, in pattern rules
+
+For example, @samp{%.c} as a pattern matches any file name that ends in
+@samp{.c}. @samp{s.%.c} as a pattern matches any file name that starts
+with @samp{s.}, ends in @samp{.c} and is at least five characters long.
+(There must be at least one character to match the @samp{%}.) The substring
+that the @samp{%} matches is called the @dfn{stem}.@refill
+
+@samp{%} in a prerequisite of a pattern rule stands for the same stem
+that was matched by the @samp{%} in the target. In order for the
+pattern rule to apply, its target pattern must match the file name
+under consideration and all of its prerequisites (after pattern
+substitution) must name files that exist or can be made. These files
+become prerequisites of the target.
+@cindex prerequisite pattern, implicit
+
+Thus, a rule of the form
+
+@example
+%.o : %.c ; @var{recipe}@dots{}
+@end example
+
+@noindent
+specifies how to make a file @file{@var{n}.o}, with another file
+@file{@var{n}.c} as its prerequisite, provided that @file{@var{n}.c}
+exists or can be made.
+
+There may also be prerequisites that do not use @samp{%}; such a prerequisite
+attaches to every file made by this pattern rule. These unvarying
+prerequisites are useful occasionally.
+
+A pattern rule need not have any prerequisites that contain @samp{%}, or
+in fact any prerequisites at all. Such a rule is effectively a general
+wildcard. It provides a way to make any file that matches the target
+pattern. @xref{Last Resort}.
+
+More than one pattern rule may match a target. In this case
+@code{make} will choose the ``best fit'' rule. @xref{Pattern Match,
+,How Patterns Match}.
+
+@c !!! The end of of this paragraph should be rewritten. --bob
+Pattern rules may have more than one target. Unlike normal rules,
+this does not act as many different rules with the same prerequisites
+and recipe. If a pattern rule has multiple targets, @code{make} knows
+that the rule's recipe is responsible for making all of the targets.
+The recipe is executed only once to make all the targets. When
+searching for a pattern rule to match a target, the target patterns of
+a rule other than the one that matches the target in need of a rule
+are incidental: @code{make} worries only about giving a recipe and
+prerequisites to the file presently in question. However, when this
+file's recipe is run, the other targets are marked as having been
+updated themselves.
+@cindex multiple targets, in pattern rule
+@cindex target, multiple in pattern rule
+
+@node Pattern Examples, Automatic Variables, Pattern Intro, Pattern Rules
+@subsection Pattern Rule Examples
+
+Here are some examples of pattern rules actually predefined in
+@code{make}. First, the rule that compiles @samp{.c} files into @samp{.o}
+files:@refill
+
+@example
+%.o : %.c
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@@
+@end example
+
+@noindent
+defines a rule that can make any file @file{@var{x}.o} from
+@file{@var{x}.c}. The recipe uses the automatic variables @samp{$@@} and
+@samp{$<} to substitute the names of the target file and the source file
+in each case where the rule applies (@pxref{Automatic Variables}).@refill
+
+Here is a second built-in rule:
+
+@example
+% :: RCS/%,v
+ $(CO) $(COFLAGS) $<
+@end example
+
+@noindent
+defines a rule that can make any file @file{@var{x}} whatsoever from a
+corresponding file @file{@var{x},v} in the sub-directory @file{RCS}. Since
+the target is @samp{%}, this rule will apply to any file whatever, provided
+the appropriate prerequisite file exists. The double colon makes the rule
+@dfn{terminal}, which means that its prerequisite may not be an intermediate
+file (@pxref{Match-Anything Rules, ,Match-Anything Pattern Rules}).@refill
+
+@need 500
+This pattern rule has two targets:
+
+@example
+@group
+%.tab.c %.tab.h: %.y
+ bison -d $<
+@end group
+@end example
+
+@noindent
+@c The following paragraph is rewritten to avoid overfull hboxes
+This tells @code{make} that the recipe @samp{bison -d @var{x}.y} will
+make both @file{@var{x}.tab.c} and @file{@var{x}.tab.h}. If the file
+@file{foo} depends on the files @file{parse.tab.o} and @file{scan.o}
+and the file @file{scan.o} depends on the file @file{parse.tab.h},
+when @file{parse.y} is changed, the recipe @samp{bison -d parse.y}
+will be executed only once, and the prerequisites of both
+@file{parse.tab.o} and @file{scan.o} will be satisfied. (Presumably
+the file @file{parse.tab.o} will be recompiled from @file{parse.tab.c}
+and the file @file{scan.o} from @file{scan.c}, while @file{foo} is
+linked from @file{parse.tab.o}, @file{scan.o}, and its other
+prerequisites, and it will execute happily ever after.)@refill
+
+@node Automatic Variables, Pattern Match, Pattern Examples, Pattern Rules
+@subsection Automatic Variables
+@cindex automatic variables
+@cindex variables, automatic
+@cindex variables, and implicit rule
+
+Suppose you are writing a pattern rule to compile a @samp{.c} file into a
+@samp{.o} file: how do you write the @samp{cc} command so that it operates
+on the right source file name? You cannot write the name in the recipe,
+because the name is different each time the implicit rule is applied.
+
+What you do is use a special feature of @code{make}, the @dfn{automatic
+variables}. These variables have values computed afresh for each rule that
+is executed, based on the target and prerequisites of the rule. In this
+example, you would use @samp{$@@} for the object file name and @samp{$<}
+for the source file name.
+
+@cindex automatic variables in prerequisites
+@cindex prerequisites, and automatic variables
+It's very important that you recognize the limited scope in which
+automatic variable values are available: they only have values within
+the recipe. In particular, you cannot use them anywhere
+within the target list of a rule; they have no value there and will
+expand to the empty string. Also, they cannot be accessed directly
+within the prerequisite list of a rule. A common mistake is
+attempting to use @code{$@@} within the prerequisites list; this will
+not work. However, there is a special feature of GNU @code{make},
+secondary expansion (@pxref{Secondary Expansion}), which will allow
+automatic variable values to be used in prerequisite lists.
+
+Here is a table of automatic variables:
+
+@table @code
+@vindex $@@
+@vindex @@ @r{(automatic variable)}
+@item $@@
+The file name of the target of the rule. If the target is an archive
+member, then @samp{$@@} is the name of the archive file. In a pattern
+rule that has multiple targets (@pxref{Pattern Intro, ,Introduction to
+Pattern Rules}), @samp{$@@} is the name of whichever target caused the
+rule's recipe to be run.
+
+@vindex $%
+@vindex % @r{(automatic variable)}
+@item $%
+The target member name, when the target is an archive member.
+@xref{Archives}. For example, if the target is @file{foo.a(bar.o)} then
+@samp{$%} is @file{bar.o} and @samp{$@@} is @file{foo.a}. @samp{$%} is
+empty when the target is not an archive member.
+
+@vindex $<
+@vindex < @r{(automatic variable)}
+@item $<
+The name of the first prerequisite. If the target got its recipe from
+an implicit rule, this will be the first prerequisite added by the
+implicit rule (@pxref{Implicit Rules}).
+
+@vindex $?
+@vindex ? @r{(automatic variable)}
+@item $?
+The names of all the prerequisites that are newer than the target, with
+spaces between them. For prerequisites which are archive members, only
+the named member is used (@pxref{Archives}).
+@cindex prerequisites, list of changed
+@cindex list of changed prerequisites
+
+@vindex $^
+@vindex ^ @r{(automatic variable)}
+@item $^
+The names of all the prerequisites, with spaces between them. For
+prerequisites which are archive members, only the named member is used
+(@pxref{Archives}). A target has only one prerequisite on each other file
+it depends on, no matter how many times each file is listed as a
+prerequisite. So if you list a prerequisite more than once for a target,
+the value of @code{$^} contains just one copy of the name. This list
+does @strong{not} contain any of the order-only prerequisites; for those
+see the @samp{$|} variable, below.
+@cindex prerequisites, list of all
+@cindex list of all prerequisites
+
+@vindex $+
+@vindex + @r{(automatic variable)}
+@item $+
+This is like @samp{$^}, but prerequisites listed more than once are
+duplicated in the order they were listed in the makefile. This is
+primarily useful for use in linking commands where it is meaningful to
+repeat library file names in a particular order.
+
+@vindex $|
+@vindex | @r{(automatic variable)}
+@item $|
+The names of all the order-only prerequisites, with spaces between
+them.
+
+@vindex $*
+@vindex * @r{(automatic variable)}
+@item $*
+The stem with which an implicit rule matches (@pxref{Pattern Match, ,How
+Patterns Match}). If the target is @file{dir/a.foo.b} and the target
+pattern is @file{a.%.b} then the stem is @file{dir/foo}. The stem is
+useful for constructing names of related files.@refill
+@cindex stem, variable for
+
+In a static pattern rule, the stem is part of the file name that matched
+the @samp{%} in the target pattern.
+
+In an explicit rule, there is no stem; so @samp{$*} cannot be determined
+in that way. Instead, if the target name ends with a recognized suffix
+(@pxref{Suffix Rules, ,Old-Fashioned Suffix Rules}), @samp{$*} is set to
+the target name minus the suffix. For example, if the target name is
+@samp{foo.c}, then @samp{$*} is set to @samp{foo}, since @samp{.c} is a
+suffix. GNU @code{make} does this bizarre thing only for compatibility
+with other implementations of @code{make}. You should generally avoid
+using @samp{$*} except in implicit rules or static pattern rules.@refill
+
+If the target name in an explicit rule does not end with a recognized
+suffix, @samp{$*} is set to the empty string for that rule.
+@end table
+
+@samp{$?} is useful even in explicit rules when you wish to operate on only
+the prerequisites that have changed. For example, suppose that an archive
+named @file{lib} is supposed to contain copies of several object files.
+This rule copies just the changed object files into the archive:
+
+@example
+@group
+lib: foo.o bar.o lose.o win.o
+ ar r lib $?
+@end group
+@end example
+
+Of the variables listed above, four have values that are single file
+names, and three have values that are lists of file names. These seven
+have variants that get just the file's directory name or just the file
+name within the directory. The variant variables' names are formed by
+appending @samp{D} or @samp{F}, respectively. These variants are
+semi-obsolete in GNU @code{make} since the functions @code{dir} and
+@code{notdir} can be used to get a similar effect (@pxref{File Name
+Functions, , Functions for File Names}). Note, however, that the
+@samp{D} variants all omit the trailing slash which always appears in
+the output of the @code{dir} function. Here is a table of the variants:
+
+@table @samp
+@vindex $(@@D)
+@vindex @@D @r{(automatic variable)}
+@item $(@@D)
+The directory part of the file name of the target, with the trailing
+slash removed. If the value of @samp{$@@} is @file{dir/foo.o} then
+@samp{$(@@D)} is @file{dir}. This value is @file{.} if @samp{$@@} does
+not contain a slash.
+
+@vindex $(@@F)
+@vindex @@F @r{(automatic variable)}
+@item $(@@F)
+The file-within-directory part of the file name of the target. If the
+value of @samp{$@@} is @file{dir/foo.o} then @samp{$(@@F)} is
+@file{foo.o}. @samp{$(@@F)} is equivalent to @samp{$(notdir $@@)}.
+
+@vindex $(*D)
+@vindex *D @r{(automatic variable)}
+@item $(*D)
+@vindex $(*F)
+@vindex *F @r{(automatic variable)}
+@itemx $(*F)
+The directory part and the file-within-directory
+part of the stem; @file{dir} and @file{foo} in this example.
+
+@vindex $(%D)
+@vindex %D @r{(automatic variable)}
+@item $(%D)
+@vindex $(%F)
+@vindex %F @r{(automatic variable)}
+@itemx $(%F)
+The directory part and the file-within-directory part of the target
+archive member name. This makes sense only for archive member targets
+of the form @file{@var{archive}(@var{member})} and is useful only when
+@var{member} may contain a directory name. (@xref{Archive Members,
+,Archive Members as Targets}.)
+
+@vindex $(<D)
+@vindex <D @r{(automatic variable)}
+@item $(<D)
+@vindex $(<F)
+@vindex <F @r{(automatic variable)}
+@itemx $(<F)
+The directory part and the file-within-directory
+part of the first prerequisite.
+
+@vindex $(^D)
+@vindex ^D @r{(automatic variable)}
+@item $(^D)
+@vindex $(^F)
+@vindex ^F @r{(automatic variable)}
+@itemx $(^F)
+Lists of the directory parts and the file-within-directory
+parts of all prerequisites.
+
+@vindex $(+D)
+@vindex +D @r{(automatic variable)}
+@item $(+D)
+@vindex $(+F)
+@vindex +F @r{(automatic variable)}
+@itemx $(+F)
+Lists of the directory parts and the file-within-directory
+parts of all prerequisites, including multiple instances of duplicated
+prerequisites.
+
+@vindex $(?D)
+@vindex ?D @r{(automatic variable)}
+@item $(?D)
+@vindex $(?F)
+@vindex ?F @r{(automatic variable)}
+@itemx $(?F)
+Lists of the directory parts and the file-within-directory parts of
+all prerequisites that are newer than the target.
+@end table
+
+Note that we use a special stylistic convention when we talk about these
+automatic variables; we write ``the value of @samp{$<}'', rather than
+@w{``the variable @code{<}''} as we would write for ordinary variables
+such as @code{objects} and @code{CFLAGS}. We think this convention
+looks more natural in this special case. Please do not assume it has a
+deep significance; @samp{$<} refers to the variable named @code{<} just
+as @samp{$(CFLAGS)} refers to the variable named @code{CFLAGS}.
+You could just as well use @samp{$(<)} in place of @samp{$<}.
+
+@node Pattern Match, Match-Anything Rules, Automatic Variables, Pattern Rules
+@subsection How Patterns Match
+
+@cindex stem
+A target pattern is composed of a @samp{%} between a prefix and a suffix,
+either or both of which may be empty. The pattern matches a file name only
+if the file name starts with the prefix and ends with the suffix, without
+overlap. The text between the prefix and the suffix is called the
+@dfn{stem}. Thus, when the pattern @samp{%.o} matches the file name
+@file{test.o}, the stem is @samp{test}. The pattern rule prerequisites are
+turned into actual file names by substituting the stem for the character
+@samp{%}. Thus, if in the same example one of the prerequisites is written
+as @samp{%.c}, it expands to @samp{test.c}.@refill
+
+When the target pattern does not contain a slash (and it usually does
+not), directory names in the file names are removed from the file name
+before it is compared with the target prefix and suffix. After the
+comparison of the file name to the target pattern, the directory
+names, along with the slash that ends them, are added on to the
+prerequisite file names generated from the pattern rule's prerequisite
+patterns and the file name. The directories are ignored only for the
+purpose of finding an implicit rule to use, not in the application of
+that rule. Thus, @samp{e%t} matches the file name @file{src/eat},
+with @samp{src/a} as the stem. When prerequisites are turned into file
+names, the directories from the stem are added at the front, while the
+rest of the stem is substituted for the @samp{%}. The stem
+@samp{src/a} with a prerequisite pattern @samp{c%r} gives the file name
+@file{src/car}.@refill
+
+@cindex pattern rules, order of
+@cindex order of pattern rules
+A pattern rule can be used to build a given file only if there is a
+target pattern that matches the file name, @emph{and} all
+prerequisites in that rule either exist or can be built. The rules
+you write take precedence over those that are built in. Note however,
+that a rule whose prerequisites actually exist or are mentioned always
+takes priority over a rule with prerequisites that must be made by
+chaining other implicit rules.
+
+@cindex stem, shortest
+It is possible that more than one pattern rule will meet these
+criteria. In that case, @code{make} will choose the rule with the
+shortest stem (that is, the pattern that matches most specifically).
+If more than one pattern rule has the shortest stem, @code{make} will
+choose the first one found in the makefile.
+
+This algorithm results in more specific rules being preferred over
+more generic ones; for example:
+
+@example
+%.o: %.c
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@@
+
+%.o : %.f
+ $(COMPILE.F) $(OUTPUT_OPTION) $<
+
+lib/%.o: lib/%.c
+ $(CC) -fPIC -c $(CFLAGS) $(CPPFLAGS) $< -o $@@
+@end example
+
+Given these rules and asked to build @file{bar.o} where both
+@file{bar.c} and @file{bar.f} exist, @code{make} will choose the first
+rule and compile @file{bar.c} into @file{bar.o}. In the same
+situation where @file{bar.c} does not exist, then @code{make} will
+choose the second rule and compile @file{bar.f} into @file{bar.o}.
+
+If @code{make} is asked to build @file{lib/bar.o} and both
+@file{lib/bar.c} and @file{lib/bar.f} exist, then the third rule will
+be chosen since the stem for this rule (@samp{bar}) is shorter than
+the stem for the first rule (@samp{lib/bar}). If @file{lib/bar.c}
+does not exist then the third rule is not eligible and the second rule
+will be used, even though the stem is longer.
+
+@node Match-Anything Rules, Canceling Rules, Pattern Match, Pattern Rules
+@subsection Match-Anything Pattern Rules
+
+@cindex match-anything rule
+@cindex terminal rule
+When a pattern rule's target is just @samp{%}, it matches any file name
+whatever. We call these rules @dfn{match-anything} rules. They are very
+useful, but it can take a lot of time for @code{make} to think about them,
+because it must consider every such rule for each file name listed either
+as a target or as a prerequisite.
+
+Suppose the makefile mentions @file{foo.c}. For this target, @code{make}
+would have to consider making it by linking an object file @file{foo.c.o},
+or by C compilation-and-linking in one step from @file{foo.c.c}, or by
+Pascal compilation-and-linking from @file{foo.c.p}, and many other
+possibilities.
+
+We know these possibilities are ridiculous since @file{foo.c} is a C source
+file, not an executable. If @code{make} did consider these possibilities,
+it would ultimately reject them, because files such as @file{foo.c.o} and
+@file{foo.c.p} would not exist. But these possibilities are so
+numerous that @code{make} would run very slowly if it had to consider
+them.@refill
+
+To gain speed, we have put various constraints on the way @code{make}
+considers match-anything rules. There are two different constraints that
+can be applied, and each time you define a match-anything rule you must
+choose one or the other for that rule.
+
+One choice is to mark the match-anything rule as @dfn{terminal} by defining
+it with a double colon. When a rule is terminal, it does not apply unless
+its prerequisites actually exist. Prerequisites that could be made with
+other implicit rules are not good enough. In other words, no further
+chaining is allowed beyond a terminal rule.
+
+For example, the built-in implicit rules for extracting sources from RCS
+and SCCS files are terminal; as a result, if the file @file{foo.c,v} does
+not exist, @code{make} will not even consider trying to make it as an
+intermediate file from @file{foo.c,v.o} or from @file{RCS/SCCS/s.foo.c,v}.
+RCS and SCCS files are generally ultimate source files, which should not be
+remade from any other files; therefore, @code{make} can save time by not
+looking for ways to remake them.@refill
+
+If you do not mark the match-anything rule as terminal, then it is
+non-terminal. A non-terminal match-anything rule cannot apply to a file name
+that indicates a specific type of data. A file name indicates a specific
+type of data if some non-match-anything implicit rule target matches it.
+
+For example, the file name @file{foo.c} matches the target for the pattern
+rule @samp{%.c : %.y} (the rule to run Yacc). Regardless of whether this
+rule is actually applicable (which happens only if there is a file
+@file{foo.y}), the fact that its target matches is enough to prevent
+consideration of any non-terminal match-anything rules for the file
+@file{foo.c}. Thus, @code{make} will not even consider trying to make
+@file{foo.c} as an executable file from @file{foo.c.o}, @file{foo.c.c},
+@file{foo.c.p}, etc.@refill
+
+The motivation for this constraint is that non-terminal match-anything
+rules are used for making files containing specific types of data (such as
+executable files) and a file name with a recognized suffix indicates some
+other specific type of data (such as a C source file).
+
+Special built-in dummy pattern rules are provided solely to recognize
+certain file names so that non-terminal match-anything rules will not be
+considered. These dummy rules have no prerequisites and no recipes, and
+they are ignored for all other purposes. For example, the built-in
+implicit rule
+
+@example
+%.p :
+@end example
+
+@noindent
+exists to make sure that Pascal source files such as @file{foo.p} match a
+specific target pattern and thereby prevent time from being wasted looking
+for @file{foo.p.o} or @file{foo.p.c}.
+
+Dummy pattern rules such as the one for @samp{%.p} are made for every
+suffix listed as valid for use in suffix rules (@pxref{Suffix Rules, ,Old-Fashioned Suffix Rules}).
+
+@node Canceling Rules, , Match-Anything Rules, Pattern Rules
+@subsection Canceling Implicit Rules
+
+You can override a built-in implicit rule (or one you have defined
+yourself) by defining a new pattern rule with the same target and
+prerequisites, but a different recipe. When the new rule is defined, the
+built-in one is replaced. The new rule's position in the sequence of
+implicit rules is determined by where you write the new rule.
+
+You can cancel a built-in implicit rule by defining a pattern rule with the
+same target and prerequisites, but no recipe. For example, the following
+would cancel the rule that runs the assembler:
+
+@example
+%.o : %.s
+@end example
+
+@node Last Resort, Suffix Rules, Pattern Rules, Implicit Rules
+@section Defining Last-Resort Default Rules
+@cindex last-resort default rules
+@cindex default rules, last-resort
+
+You can define a last-resort implicit rule by writing a terminal
+match-anything pattern rule with no prerequisites (@pxref{Match-Anything
+Rules}). This is just like any other pattern rule; the only thing
+special about it is that it will match any target. So such a rule's
+recipe is used for all targets and prerequisites that have no recipe
+of their own and for which no other implicit rule applies.
+
+For example, when testing a makefile, you might not care if the source
+files contain real data, only that they exist. Then you might do this:
+
+@example
+%::
+ touch $@@
+@end example
+
+@noindent
+to cause all the source files needed (as prerequisites) to be created
+automatically.
+
+@findex .DEFAULT
+You can instead define a recipe to be used for targets for which there
+are no rules at all, even ones which don't specify recipes. You do
+this by writing a rule for the target @code{.DEFAULT}. Such a rule's
+recipe is used for all prerequisites which do not appear as targets in
+any explicit rule, and for which no implicit rule applies. Naturally,
+there is no @code{.DEFAULT} rule unless you write one.
+
+If you use @code{.DEFAULT} with no recipe or prerequisites:
+
+@example
+.DEFAULT:
+@end example
+
+@noindent
+the recipe previously stored for @code{.DEFAULT} is cleared. Then
+@code{make} acts as if you had never defined @code{.DEFAULT} at all.
+
+If you do not want a target to get the recipe from a match-anything
+pattern rule or @code{.DEFAULT}, but you also do not want any recipe
+to be run for the target, you can give it an empty recipe
+(@pxref{Empty Recipes, ,Defining Empty Recipes}).@refill
+
+You can use a last-resort rule to override part of another makefile.
+@xref{Overriding Makefiles, , Overriding Part of Another Makefile}.
+
+@node Suffix Rules, Implicit Rule Search, Last Resort, Implicit Rules
+@section Old-Fashioned Suffix Rules
+@cindex old-fashioned suffix rules
+@cindex suffix rule
+
+@dfn{Suffix rules} are the old-fashioned way of defining implicit rules for
+@code{make}. Suffix rules are obsolete because pattern rules are more
+general and clearer. They are supported in GNU @code{make} for
+compatibility with old makefiles. They come in two kinds:
+@dfn{double-suffix} and @dfn{single-suffix}.@refill
+
+A double-suffix rule is defined by a pair of suffixes: the target suffix
+and the source suffix. It matches any file whose name ends with the
+target suffix. The corresponding implicit prerequisite is made by
+replacing the target suffix with the source suffix in the file name. A
+two-suffix rule whose target and source suffixes are @samp{.o} and
+@samp{.c} is equivalent to the pattern rule @samp{%.o : %.c}.
+
+A single-suffix rule is defined by a single suffix, which is the source
+suffix. It matches any file name, and the corresponding implicit
+prerequisite name is made by appending the source suffix. A single-suffix
+rule whose source suffix is @samp{.c} is equivalent to the pattern rule
+@samp{% : %.c}.
+
+Suffix rule definitions are recognized by comparing each rule's target
+against a defined list of known suffixes. When @code{make} sees a rule
+whose target is a known suffix, this rule is considered a single-suffix
+rule. When @code{make} sees a rule whose target is two known suffixes
+concatenated, this rule is taken as a double-suffix rule.
+
+For example, @samp{.c} and @samp{.o} are both on the default list of
+known suffixes. Therefore, if you define a rule whose target is
+@samp{.c.o}, @code{make} takes it to be a double-suffix rule with source
+suffix @samp{.c} and target suffix @samp{.o}. Here is the old-fashioned
+way to define the rule for compiling a C source file:@refill
+
+@example
+.c.o:
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@@ $<
+@end example
+
+Suffix rules cannot have any prerequisites of their own. If they have any,
+they are treated as normal files with funny names, not as suffix rules.
+Thus, the rule:
+
+@example
+.c.o: foo.h
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@@ $<
+@end example
+
+@noindent
+tells how to make the file @file{.c.o} from the prerequisite file
+@file{foo.h}, and is not at all like the pattern rule:
+
+@example
+%.o: %.c foo.h
+ $(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@@ $<
+@end example
+
+@noindent
+which tells how to make @samp{.o} files from @samp{.c} files, and makes all
+@samp{.o} files using this pattern rule also depend on @file{foo.h}.
+
+Suffix rules with no recipe are also meaningless. They do not remove
+previous rules as do pattern rules with no recipe (@pxref{Canceling
+Rules, , Canceling Implicit Rules}). They simply enter the suffix or
+pair of suffixes concatenated as a target in the data base.@refill
+
+@findex .SUFFIXES
+The known suffixes are simply the names of the prerequisites of the special
+target @code{.SUFFIXES}. You can add your own suffixes by writing a rule
+for @code{.SUFFIXES} that adds more prerequisites, as in:
+
+@example
+.SUFFIXES: .hack .win
+@end example
+
+@noindent
+which adds @samp{.hack} and @samp{.win} to the end of the list of suffixes.
+
+If you wish to eliminate the default known suffixes instead of just adding
+to them, write a rule for @code{.SUFFIXES} with no prerequisites. By
+special dispensation, this eliminates all existing prerequisites of
+@code{.SUFFIXES}. You can then write another rule to add the suffixes you
+want. For example,
+
+@example
+@group
+.SUFFIXES: # @r{Delete the default suffixes}
+.SUFFIXES: .c .o .h # @r{Define our suffix list}
+@end group
+@end example
+
+The @samp{-r} or @samp{--no-builtin-rules} flag causes the default
+list of suffixes to be empty.
+
+@vindex SUFFIXES
+The variable @code{SUFFIXES} is defined to the default list of suffixes
+before @code{make} reads any makefiles. You can change the list of suffixes
+with a rule for the special target @code{.SUFFIXES}, but that does not alter
+this variable.
+
+@node Implicit Rule Search, , Suffix Rules, Implicit Rules
+@section Implicit Rule Search Algorithm
+@cindex implicit rule, search algorithm
+@cindex search algorithm, implicit rule
+
+Here is the procedure @code{make} uses for searching for an implicit rule
+for a target @var{t}. This procedure is followed for each double-colon
+rule with no recipe, for each target of ordinary rules none of which have
+a recipe, and for each prerequisite that is not the target of any rule. It
+is also followed recursively for prerequisites that come from implicit
+rules, in the search for a chain of rules.
+
+Suffix rules are not mentioned in this algorithm because suffix rules are
+converted to equivalent pattern rules once the makefiles have been read in.
+
+For an archive member target of the form
+@samp{@var{archive}(@var{member})}, the following algorithm is run
+twice, first using the entire target name @var{t}, and second using
+@samp{(@var{member})} as the target @var{t} if the first run found no
+rule.@refill
+
+@enumerate
+@item
+Split @var{t} into a directory part, called @var{d}, and the rest,
+called @var{n}. For example, if @var{t} is @samp{src/foo.o}, then
+@var{d} is @samp{src/} and @var{n} is @samp{foo.o}.@refill
+
+@item
+Make a list of all the pattern rules one of whose targets matches
+@var{t} or @var{n}. If the target pattern contains a slash, it is
+matched against @var{t}; otherwise, against @var{n}.
+
+@item
+If any rule in that list is @emph{not} a match-anything rule, then
+remove all non-terminal match-anything rules from the list.
+
+@item
+Remove from the list all rules with no recipe.
+
+@item
+For each pattern rule in the list:
+
+@enumerate a
+@item
+Find the stem @var{s}, which is the nonempty part of @var{t} or @var{n}
+matched by the @samp{%} in the target pattern.@refill
+
+@item
+Compute the prerequisite names by substituting @var{s} for @samp{%}; if
+the target pattern does not contain a slash, append @var{d} to
+the front of each prerequisite name.@refill
+
+@item
+Test whether all the prerequisites exist or ought to exist. (If a
+file name is mentioned in the makefile as a target or as an explicit
+prerequisite, then we say it ought to exist.)
+
+If all prerequisites exist or ought to exist, or there are no prerequisites,
+then this rule applies.
+@end enumerate
+
+@item
+If no pattern rule has been found so far, try harder.
+For each pattern rule in the list:
+
+@enumerate a
+@item
+If the rule is terminal, ignore it and go on to the next rule.
+
+@item
+Compute the prerequisite names as before.
+
+@item
+Test whether all the prerequisites exist or ought to exist.
+
+@item
+For each prerequisite that does not exist, follow this algorithm
+recursively to see if the prerequisite can be made by an implicit
+rule.
+
+@item
+If all prerequisites exist, ought to exist, or can be
+made by implicit rules, then this rule applies.
+@end enumerate
+
+@item
+If no implicit rule applies, the rule for @code{.DEFAULT}, if any,
+applies. In that case, give @var{t} the same recipe that
+@code{.DEFAULT} has. Otherwise, there is no recipe for @var{t}.
+@end enumerate
+
+Once a rule that applies has been found, for each target pattern of
+the rule other than the one that matched @var{t} or @var{n}, the
+@samp{%} in the pattern is replaced with @var{s} and the resultant
+file name is stored until the recipe to remake the target file @var{t}
+is executed. After the recipe is executed, each of these stored file
+names are entered into the data base and marked as having been updated
+and having the same update status as the file @var{t}.
+
+When the recipe of a pattern rule is executed for @var{t}, the
+automatic variables are set corresponding to the target and
+prerequisites. @xref{Automatic Variables}.
+
+@node Archives, Extending make, Implicit Rules, Top
+@chapter Using @code{make} to Update Archive Files
+@cindex archive
+
+@dfn{Archive files} are files containing named sub-files called
+@dfn{members}; they are maintained with the program @code{ar} and their
+main use is as subroutine libraries for linking.
+
+@menu
+* Archive Members:: Archive members as targets.
+* Archive Update:: The implicit rule for archive member targets.
+* Archive Pitfalls:: Dangers to watch out for when using archives.
+* Archive Suffix Rules:: You can write a special kind of suffix rule
+ for updating archives.
+@end menu
+
+@node Archive Members, Archive Update, Archives, Archives
+@section Archive Members as Targets
+@cindex archive member targets
+
+An individual member of an archive file can be used as a target or
+prerequisite in @code{make}. You specify the member named @var{member} in
+archive file @var{archive} as follows:
+
+@example
+@var{archive}(@var{member})
+@end example
+
+@noindent
+This construct is available only in targets and prerequisites, not in
+recipes! Most programs that you might use in recipes do not support
+this syntax and cannot act directly on archive members. Only
+@code{ar} and other programs specifically designed to operate on
+archives can do so. Therefore, valid recipes to update an archive
+member target probably must use @code{ar}. For example, this rule
+says to create a member @file{hack.o} in archive @file{foolib} by
+copying the file @file{hack.o}:
+
+@example
+foolib(hack.o) : hack.o
+ ar cr foolib hack.o
+@end example
+
+In fact, nearly all archive member targets are updated in just this way
+and there is an implicit rule to do it for you. @strong{Please note:} The
+@samp{c} flag to @code{ar} is required if the archive file does not
+already exist.
+
+To specify several members in the same archive, you can write all the
+member names together between the parentheses. For example:
+
+@example
+foolib(hack.o kludge.o)
+@end example
+
+@noindent
+is equivalent to:
+
+@example
+foolib(hack.o) foolib(kludge.o)
+@end example
+
+@cindex wildcard, in archive member
+You can also use shell-style wildcards in an archive member reference.
+@xref{Wildcards, ,Using Wildcard Characters in File Names}. For
+example, @w{@samp{foolib(*.o)}} expands to all existing members of the
+@file{foolib} archive whose names end in @samp{.o}; perhaps
+@samp{@w{foolib(hack.o)} @w{foolib(kludge.o)}}.
+
+@node Archive Update, Archive Pitfalls, Archive Members, Archives
+@section Implicit Rule for Archive Member Targets
+
+Recall that a target that looks like @file{@var{a}(@var{m})} stands for the
+member named @var{m} in the archive file @var{a}.
+
+When @code{make} looks for an implicit rule for such a target, as a special
+feature it considers implicit rules that match @file{(@var{m})}, as well as
+those that match the actual target @file{@var{a}(@var{m})}.
+
+This causes one special rule whose target is @file{(%)} to match. This
+rule updates the target @file{@var{a}(@var{m})} by copying the file @var{m}
+into the archive. For example, it will update the archive member target
+@file{foo.a(bar.o)} by copying the @emph{file} @file{bar.o} into the
+archive @file{foo.a} as a @emph{member} named @file{bar.o}.
+
+When this rule is chained with others, the result is very powerful.
+Thus, @samp{make "foo.a(bar.o)"} (the quotes are needed to protect the
+@samp{(} and @samp{)} from being interpreted specially by the shell) in
+the presence of a file @file{bar.c} is enough to cause the following
+recipe to be run, even without a makefile:
+
+@example
+cc -c bar.c -o bar.o
+ar r foo.a bar.o
+rm -f bar.o
+@end example
+
+@noindent
+Here @code{make} has envisioned the file @file{bar.o} as an intermediate
+file. @xref{Chained Rules, ,Chains of Implicit Rules}.
+
+Implicit rules such as this one are written using the automatic variable
+@samp{$%}. @xref{Automatic Variables}.
+
+An archive member name in an archive cannot contain a directory name, but
+it may be useful in a makefile to pretend that it does. If you write an
+archive member target @file{foo.a(dir/file.o)}, @code{make} will perform
+automatic updating with this recipe:
+
+@example
+ar r foo.a dir/file.o
+@end example
+
+@noindent
+which has the effect of copying the file @file{dir/file.o} into a member
+named @file{file.o}. In connection with such usage, the automatic variables
+@code{%D} and @code{%F} may be useful.
+
+@menu
+* Archive Symbols:: How to update archive symbol directories.
+@end menu
+
+@node Archive Symbols, , Archive Update, Archive Update
+@subsection Updating Archive Symbol Directories
+@cindex @code{__.SYMDEF}
+@cindex updating archive symbol directories
+@cindex archive symbol directory updating
+@cindex symbol directories, updating archive
+@cindex directories, updating archive symbol
+
+An archive file that is used as a library usually contains a special member
+named @file{__.SYMDEF} that contains a directory of the external symbol
+names defined by all the other members. After you update any other
+members, you need to update @file{__.SYMDEF} so that it will summarize the
+other members properly. This is done by running the @code{ranlib} program:
+
+@example
+ranlib @var{archivefile}
+@end example
+
+Normally you would put this command in the rule for the archive file,
+and make all the members of the archive file prerequisites of that rule.
+For example,
+
+@example
+libfoo.a: libfoo.a(x.o) libfoo.a(y.o) @dots{}
+ ranlib libfoo.a
+@end example
+
+@noindent
+The effect of this is to update archive members @file{x.o}, @file{y.o},
+etc., and then update the symbol directory member @file{__.SYMDEF} by
+running @code{ranlib}. The rules for updating the members are not shown
+here; most likely you can omit them and use the implicit rule which copies
+files into the archive, as described in the preceding section.
+
+This is not necessary when using the GNU @code{ar} program, which
+updates the @file{__.SYMDEF} member automatically.
+
+@node Archive Pitfalls, Archive Suffix Rules, Archive Update, Archives
+@section Dangers When Using Archives
+@cindex archive, and parallel execution
+@cindex parallel execution, and archive update
+@cindex archive, and @code{-j}
+@cindex @code{-j}, and archive update
+
+It is important to be careful when using parallel execution (the
+@code{-j} switch; @pxref{Parallel, ,Parallel Execution}) and archives.
+If multiple @code{ar} commands run at the same time on the same archive
+file, they will not know about each other and can corrupt the file.
+
+Possibly a future version of @code{make} will provide a mechanism to
+circumvent this problem by serializing all recipes that operate on the
+same archive file. But for the time being, you must either write your
+makefiles to avoid this problem in some other way, or not use @code{-j}.
+
+@node Archive Suffix Rules, , Archive Pitfalls, Archives
+@section Suffix Rules for Archive Files
+@cindex suffix rule, for archive
+@cindex archive, suffix rule for
+@cindex library archive, suffix rule for
+@cindex @code{.a} (archives)
+
+You can write a special kind of suffix rule for dealing with archive
+files. @xref{Suffix Rules}, for a full explanation of suffix rules.
+Archive suffix rules are obsolete in GNU @code{make}, because pattern
+rules for archives are a more general mechanism (@pxref{Archive
+Update}). But they are retained for compatibility with other
+@code{make}s.
+
+To write a suffix rule for archives, you simply write a suffix rule
+using the target suffix @samp{.a} (the usual suffix for archive files).
+For example, here is the old-fashioned suffix rule to update a library
+archive from C source files:
+
+@example
+@group
+.c.a:
+ $(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $*.o
+ $(AR) r $@@ $*.o
+ $(RM) $*.o
+@end group
+@end example
+
+@noindent
+This works just as if you had written the pattern rule:
+
+@example
+@group
+(%.o): %.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $*.o
+ $(AR) r $@@ $*.o
+ $(RM) $*.o
+@end group
+@end example
+
+In fact, this is just what @code{make} does when it sees a suffix rule
+with @samp{.a} as the target suffix. Any double-suffix rule
+@w{@samp{.@var{x}.a}} is converted to a pattern rule with the target
+pattern @samp{(%.o)} and a prerequisite pattern of @samp{%.@var{x}}.
+
+Since you might want to use @samp{.a} as the suffix for some other kind
+of file, @code{make} also converts archive suffix rules to pattern rules
+in the normal way (@pxref{Suffix Rules}). Thus a double-suffix rule
+@w{@samp{.@var{x}.a}} produces two pattern rules: @samp{@w{(%.o):}
+@w{%.@var{x}}} and @samp{@w{%.a}: @w{%.@var{x}}}.@refill
+
+@node Extending make, Integrating make, Archives, Top
+@chapter Extending GNU @code{make}
+@cindex make extensions
+
+GNU @code{make} provides many advanced capabilities, including many
+useful functions. However, it does not contain a complete programming
+language and so it has limitations. Sometimes these limitations can be
+overcome through use of the @code{shell} function to invoke a separate
+program, although this can be inefficient.
+
+In cases where the built-in capabilities of GNU @code{make} are
+insufficient to your requirements there are two options for extending
+@code{make}. On systems where it's provided, you can utilize GNU
+Guile as an embedded scripting language (@pxref{Guile Integration,,GNU
+Guile Integration}). On systems which support dynamically loadable
+objects, you can write your own extension in any language (which can
+be compiled into such an object) and load it to provide extended
+capabilities (@pxref{load Directive, ,The @code{load} Directive}).
+
+@menu
+* Guile Integration:: Using Guile as an embedded scripting language.
+* Loading Objects:: Loading dynamic objects as extensions.
+@end menu
+
+@node Guile Integration, Loading Objects, Extending make, Extending make
+@section GNU Guile Integration
+@cindex Guile
+@cindex extensions, Guile
+
+GNU @code{make} may be built with support for GNU Guile as an embedded
+extension language. Guile implements the Scheme language. A review
+of GNU Guile and the Scheme language and its features is beyond the
+scope of this manual: see the documentation for GNU Guile and Scheme.
+
+You can determine if @code{make} contains support for Guile by
+examining the @code{.FEATURES} variable; it will contain the word
+@var{guile} if Guile support is available.
+
+The Guile integration provides one new @code{make} function: @code{guile}.
+The @code{guile} function takes one argument which is first expanded
+by @code{make} in the normal fashion, then passed to the GNU Guile
+evaluator. The result of the evaluator is converted into a string and
+used as the expansion of the @code{guile} function in the makefile.
+
+In addition, GNU @code{make} exposes Guile procedures for use in Guile
+scripts.
+
+@menu
+* Guile Types:: Converting Guile types to @code{make} strings.
+* Guile Interface:: Invoking @code{make} functions from Guile.
+* Guile Example:: Example using Guile in @code{make}.
+@end menu
+
+@node Guile Types, Guile Interface, Guile Integration, Guile Integration
+@subsection Conversion of Guile Types
+@cindex convert guile types
+@cindex guile, conversion of types
+@cindex types, conversion of
+
+There is only one ``data type'' in @code{make}: a string. GNU Guile,
+on the other hand, provides a rich variety of different data types.
+An important aspect of the interface between @code{make} and GNU Guile
+is the conversion of Guile data types into @code{make} strings.
+
+This conversion is relevant in two places: when a makefile invokes the
+@code{guile} function to evaluate a Guile expression, the result of
+that evaluation must be converted into a make string so it can be
+further evaluated by @code{make}. And secondly, when a Guile script
+invokes one of the procedures exported by @code{make} the argument
+provided to the procedure must be converted into a string.
+
+The conversion of Guile types into @code{make} strings is as below:
+
+@table @code
+@item #f
+False is converted into the empty string: in @code{make} conditionals
+the empty string is considered false.
+
+@item #t
+True is converted to the string @samp{#t}: in @code{make} conditionals
+any non-empty string is considered true.
+
+@item symbol
+@item number
+A symbol or number is converted into the string representation of that
+symbol or number.
+
+@item character
+A printable character is converted to the same character.
+
+@item string
+A string containing only printable characters is converted to the same
+string.
+
+@item list
+A list is converted recursively according to the above rules. This
+implies that any structured list will be flattened (that is, a result
+of @samp{'(a b (c d) e)} will be converted to the @code{make} string
+@samp{a b c d e}).
+
+@item other
+Any other Guile type results in an error. In future versions of
+@code{make}, other Guile types may be converted.
+
+@end table
+
+The translation of @samp{#f} (to the empty string) and @samp{#t} (to
+the non-empty string @samp{#t}) is designed to allow you to use Guile
+boolean results directly as @code{make} boolean conditions. For
+example:
+
+@example
+$(if $(guile (access? "myfile" R_OK)),$(info myfile exists))
+@end example
+
+As a consequence of these conversion rules you must consider the
+result of your Guile script, as that result will be converted into a
+string and parsed by @code{make}. If there is no natural result for
+the script (that is, the script exists solely for its side-effects),
+you should add @samp{#f} as the final expression in order to avoid
+syntax errors in your makefile.
+
+@node Guile Interface, Guile Example, Guile Types, Guile Integration
+@subsection Interfaces from Guile to @code{make}
+@cindex make interface to guile
+@cindex make procedures in guile
+
+In addition to the @code{guile} function available in makefiles,
+@code{make} exposes some procedures for use in your Guile scripts. At
+startup @code{make} creates a new Guile module, @code{gnu make}, and
+exports these procedures as public interfaces from that module:
+
+@table @code
+@item gmk-expand
+@findex gmk-expand
+This procedure takes a single argument which is converted into a
+string. The string is expanded by @code{make} using normal
+@code{make} expansion rules. The result of the expansion is converted
+into a Guile string and provided as the result of the procedure.
+
+@item gmk-eval
+@findex gmk-eval
+This procedure takes a single argument which is converted into a
+string. The string is evaluated by @code{make} as if it were a
+makefile. This is the same capability available via the @code{eval}
+function (@pxref{Eval Function}). The result of the @code{gmk-eval}
+procedure is always the empty string.
+
+Note that @code{gmk-eval} is not quite the same as using
+@code{gmk-expand} with the @code{eval} function: in the latter case
+the evaluated string will be expanded @emph{twice}; first by
+@code{gmk-expand}, then again by the @code{eval} function.
+
+@end table
+
+@node Guile Example, , Guile Interface, Guile Integration
+@subsection Example Using Guile in @code{make}
+@cindex Guile example
+@cindex example using Guile
+
+Here is a very simple example using GNU Guile to manage writing to a
+file. These Guile procedures simply open a file, allow writing to the
+file (one string per line), and close the file. Note that because we
+cannot store complex values such as Guile ports in @code{make}
+variables, we'll keep the port as a global variable in the Guile
+interpreter.
+
+You can create Guile functions easily using @code{define}/@code{endef}
+to create a Guile script, then use the @code{guile} function to
+internalize it:
+
+@example
+@group
+define GUILEIO
+;; A simple Guile IO library for GNU make
+
+(define MKPORT #f)
+
+(define (mkopen name mode)
+ (set! MKPORT (open-file name mode))
+ #f)
+
+(define (mkwrite s)
+ (display s MKPORT)
+ (newline MKPORT)
+ #f)
+
+(define (mkclose)
+ (close-port MKPORT)
+ #f)
+
+#f
+endef
+
+# Internalize the Guile IO functions
+$(guile $(GUILEIO))
+@end group
+@end example
+
+If you have a significant amount of Guile support code, you might
+consider keeping it in a different file (e.g., @file{guileio.scm}) and
+then loading it in your makefile using the @code{guile} function:
+
+@example
+$(guile (load "guileio.scm"))
+@end example
+
+An advantage to this method is that when editing @file{guileio.scm},
+your editor will understand that this file contains Scheme syntax
+rather than makefile syntax.
+
+Now you can use these Guile functions to create files. Suppose you
+need to operate on a very large list, which cannot fit on the command
+line, but the utility you're using accepts the list as input as well:
+
+@example
+@group
+prog: $(PREREQS)
+ @@$(guile (mkopen "tmp.out" "w")) \
+ $(foreach X,$^,$(guile (mkwrite "$(X)"))) \
+ $(guile (mkclose))
+ $(LINK) < tmp.out
+@end group
+@end example
+
+A more comprehensive suite of file manipulation procedures is possible
+of course. You could, for example, maintain multiple output files at
+the same time by choosing a symbol for each one and using it as the
+key to a hash table, where the value is a port, then returning the
+symbol to be stored in a @code{make} variable.
+
+@node Loading Objects, , Guile Integration, Extending make
+@section Loading Dynamic Objects
+@cindex loaded objects
+@cindex objects, loaded
+@cindex extensions, loading
+
+@cartouche
+@quotation Warning
+The @code{load} directive and extension capability is considered a
+``technology preview'' in this release of GNU make. We encourage you
+to experiment with this feature and we appreciate any feedback on it.
+However we cannot guarantee to maintain backward-compatibility in the
+next release. Consider using GNU Guile instead for extending GNU make
+(@pxref{Guile Function, ,The @code{guile} Function}).
+@end quotation
+@end cartouche
+
+Many operating systems provide a facility for dynamically loading
+compiled objects. If your system provides this facility, GNU
+@code{make} can make use of it to load dynamic objects at runtime,
+providing new capabilities which may then be invoked by your makefile.
+
+The @code{load} directive is used to load a dynamic object. Once the
+object is loaded, a ``setup'' function will be invoked to allow the
+object to initialize itself and register new facilities with GNU
+@code{make}. A dynamic object might include new @code{make} functions,
+for example, and the ``setup'' function would register them with GNU
+@code{make}'s function handling system.
+
+@menu
+* load Directive:: Loading dynamic objects as extensions.
+* Remaking Loaded Objects:: How loaded objects get remade.
+* Loaded Object API:: Programmatic interface for loaded objects.
+* Loaded Object Example:: Example of a loaded object
+@end menu
+
+@node load Directive, Remaking Loaded Objects, Loading Objects, Loading Objects
+@subsection The @code{load} Directive
+@cindex load directive
+@cindex extensions, load directive
+
+Objects are loaded into GNU @code{make} by placing the @code{load}
+directive into your makefile. The syntax of the @code{load} directive
+is as follows:
+
+@findex load
+@example
+load @var{object-file} @dots{}
+@end example
+
+or:
+
+@example
+load @var{object-file}(@var{symbol-name}) @dots{}
+@end example
+
+The file @var{object-file} is dynamically loaded by GNU @code{make}.
+If @var{object-file} does not include a directory path then it is
+first looked for in the current directory. If it is not found there,
+or a directory path is included, then system-specific paths will be
+searched. If the load fails for any reason, @code{make} will print a
+message and exit.
+
+If the load succeeds @code{make} will invoke an initializing function.
+
+If @var{symbol-name} is provided, it will be used as the name of the
+initializing function.
+
+If no @var{symbol-name} is provided, the initializing function name is
+created by taking the base file name of @var{object-file}, up to the
+first character which is not a valid symbol name character
+(alphanumerics and underscores are valid symbol name characters). To
+this prefix will be appended the suffix @code{_gmk_setup}.
+
+More than one object file may be loaded with a single @code{load}
+directive, and both forms of @code{load} arguments may be used in the
+same directive.
+
+The initializing function will be provided the file name and line
+number of the invocation of the @code{load} operation. It should
+return a value of type @code{int}, which must be @code{0} on failure
+and non-@code{0} on success. If the return value is @code{-1}, then
+GNU make will @emph{not} attempt to rebuild the object file
+(@pxref{Remaking Loaded Objects, ,How Loaded Objects Are Remade}).
+
+For example:
+
+@example
+load ../mk_funcs.so
+@end example
+
+will load the dynamic object @file{../mk_funcs.so}. After the object
+is loaded, @code{make} will invoke the function (assumed to be defined
+by the shared object) @code{mk_funcs_gmk_setup}.
+
+On the other hand:
+
+@example
+load ../mk_funcs.so(init_mk_func)
+@end example
+
+will load the dynamic object @file{../mk_funcs.so}. After the object
+is loaded, @code{make} will invoke the function @code{init_mk_func}.
+
+Regardless of how many times an object file appears in a @code{load}
+directive, it will only be loaded (and its setup function will only
+be invoked) once.
+
+@vindex .LOADED
+After an object has been successfully loaded, its file name is
+appended to the @code{.LOADED} variable.
+
+@findex -load
+If you would prefer that failure to load a dynamic object not be
+reported as an error, you can use the @code{-load} directive instead
+of @code{load}. GNU @code{make} will not fail and no message will be
+generated if an object fails to load. The failed object is not added
+to the @code{.LOADED} variable, which can then be consulted to
+determine if the load was successful.
+
+@node Remaking Loaded Objects, Loaded Object API, load Directive, Loading Objects
+@subsection How Loaded Objects Are Remade
+@cindex updating loaded objects
+@cindex remaking loaded objects
+@cindex loaded objects, remaking of
+
+Loaded objects undergo the same re-make procedure as makefiles
+(@pxref{Remaking Makefiles, ,How Makefiles Are Remade}). If any
+loaded object is recreated, then @code{make} will start from scratch
+and re-read all the makefiles, and reload the object files again. It
+is not necessary for the loaded object to do anything special to
+support this.@refill
+
+It's up to the makefile author to provide the rules needed for
+rebuilding the loaded object.
+
+@node Loaded Object API, Loaded Object Example, Remaking Loaded Objects, Loading Objects
+@subsection Loaded Object Interface
+@cindex loaded object API
+@cindex interface for loaded objects
+
+@cartouche
+@quotation Warning
+For this feature to be useful your extensions will need to invoke
+various functions internal to GNU @code{make}. The programming
+interfaces provided in this release should not be considered stable:
+functions may be added, removed, or change calling signatures or
+implementations in future versions of GNU @code{make}.
+@end quotation
+@end cartouche
+
+To be useful, loaded objects must be able to interact with GNU
+@code{make}. This interaction includes both interfaces the loaded
+object provides to makefiles and also interfaces @code{make} provides
+to the loaded object to manipulate @code{make}'s operation.
+
+The interface between loaded objects and @code{make} is defined by the
+@file{gnumake.h} C header file. All loaded objects written in C
+should include this header file. Any loaded object not written in C
+will need to implement the interface defined in this header file.
+
+Typically, a loaded object will register one or more new GNU
+@code{make} functions using the @code{gmk_add_function} routine from
+within its setup function. The implementations of these @code{make}
+functions may make use of the @code{gmk_expand} and @code{gmk_eval}
+routines to perform their tasks, then optionally return a string as
+the result of the function expansion.
+
+@subsubheading Loaded Object Licensing
+@cindex loaded object licensing
+@cindex plugin_is_GPL_compatible
+
+Every dynamic extension should define the global symbol
+@code{plugin_is_GPL_compatible} to assert that it has been licensed
+under a GPL-compatible license. If this symbol does not exist,
+@code{make} emits a fatal error and exits when it tries to load your
+extension.
+
+The declared type of the symbol should be @code{int}. It does not need
+to be in any allocated section, though. The code merely asserts that
+the symbol exists in the global scope. Something like this is enough:
+
+@example
+int plugin_is_GPL_compatible;
+@end example
+
+@subsubheading Data Structures
+
+@table @code
+@item gmk_floc
+This structure represents a filename/location pair. It is provided
+when defining items, so GNU @code{make} can inform the user later
+where the definition occurred if necessary.
+@end table
+
+@subsubheading Registering Functions
+@findex gmk_add_function
+
+There is currently one way for makefiles to invoke operations provided
+by the loaded object: through the @code{make} function call
+interface. A loaded object can register one or more new functions
+which may then be invoked from within the makefile in the same way as
+any other function.
+
+Use @code{gmk_add_function} to create a new @code{make} function. Its
+arguments are as follows:
+
+@table @code
+@item name
+The function name. This is what the makefile should use to invoke the
+function. The name must be between 1 and 255 characters long and it
+may only contain alphanumeric, period (@samp{.}), dash (@samp{-}), and
+underscore (@samp{_}) characters. It may not begin with a period.
+
+@item func_ptr
+A pointer to a function that @code{make} will invoke when it expands
+the function in a makefile. This function must be defined by the
+loaded object.
+
+@item min_args
+The minimum number of arguments the function will accept. Must be
+between 0 and 255. GNU @code{make} will check this and fail before
+invoking @code{func_ptr} if the function was invoked with too few
+arguments.
+
+@item max_args
+The maximum number of arguments the function will accept. Must be
+between 0 and 255. GNU @code{make} will check this and fail before
+invoking @code{func_ptr} if the function was invoked with too few
+arguments. If the value is 0, then any number of arguments is
+accepted. If the value is greater than 0, then it must be greater
+than or equal to @code{min_args}.
+
+@item flags
+Flags that specify how this function will operate; the desired flags
+should be OR'd together. If the @code{GMK_FUNC_NOEXPAND} flag is
+given then the function arguments will not be expanded before the
+function is called; otherwise they will be expanded first.
+@end table
+
+@subsubheading Registered Function Interface
+@findex gmk_func_ptr
+
+A function registered with @code{make} must match the
+@code{gmk_func_ptr} type. It will be invoked with three parameters:
+@code{name} (the name of the function), @code{argc} (the number of
+arguments to the function), and @code{argv} (an array of pointers to
+arguments to the function). The last pointer (that is,
+@code{argv[argc]}) will be null (@code{0}).
+
+The return value of the function is the result of expanding the
+function. If the function expands to nothing the return value may be
+null. Otherwise, it must be a pointer to a string created with
+@code{gmk_alloc}. Once the function returns, @code{make} owns this
+string and will free it when appropriate; it cannot be accessed by the
+loaded object.
+
+@subsubheading GNU @code{make} Facilities
+
+There are some facilities exported by GNU @code{make} for use by
+loaded objects. Typically these would be run from within the
+setup function and/or the functions registered via
+@code{gmk_add_function}, to retrieve or modify the data @code{make}
+works with.
+
+@table @code
+@item gmk_expand
+@findex gmk_expand
+This function takes a string and expands it using @code{make}
+expansion rules. The result of the expansion is returned in a
+nil-terminated string buffer. The caller is responsible for calling
+@code{gmk_free} with a pointer to the returned buffer when done.
+
+@item gmk_eval
+@findex gmk_eval
+This function takes a buffer and evaluates it as a segment of makefile
+syntax. This function can be used to define new variables, new rules,
+etc. It is equivalent to using the @code{eval} @code{make} function.
+@end table
+
+Note that there is a difference between @code{gmk_eval} and calling
+@code{gmk_expand} with a string using the @code{eval} function: in
+the latter case the string will be expanded @emph{twice}; once by
+@code{gmk_expand} and then again by the @code{eval} function. Using
+@code{gmk_eval} the buffer is only expanded once, at most (as it's
+read by the @code{make} parser).
+
+@subsubheading Memory Management
+
+Some systems allow for different memory management schemes. Thus you
+should never pass memory that you've allocated directly to any
+@code{make} function, nor should you attempt to directly free any
+memory returned to you by any @code{make} function. Instead, use the
+@code{gmk_alloc} and @code{gmk_free} functions.
+
+In particular, the string returned to @code{make} by a function
+registered using @code{gmk_add_function} @emph{must} be allocated
+using @code{gmk_alloc}, and the string returned from the @code{make}
+@code{gmk_expand} function @emph{must} be freed (when no longer
+needed) using @code{gmk_free}.
+
+@table @code
+@item gmk_alloc
+@findex gmk_alloc
+Return a pointer to a newly-allocated buffer. This function will
+always return a valid pointer; if not enough memory is available
+@code{make} will exit.
+
+@item gmk_free
+@findex gmk_free
+Free a buffer returned to you by @code{make}. Once the
+@code{gmk_free} function returns the string will no longer be valid.
+@end table
+
+@node Loaded Object Example, , Loaded Object API, Loading Objects
+@subsection Example Loaded Object
+@cindex loaded object example
+@cindex example of loaded objects
+
+Let's suppose we wanted to write a new GNU @code{make} function that
+would create a temporary file and return its name. We would like our
+function to take a prefix as an argument. First we can write the
+function in a file @file{mk_temp.c}:
+
+@example
+@group
+#include <stdlib.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <gnumake.h>
+
+int plugin_is_GPL_compatible;
+
+char *
+gen_tmpfile(const char *nm, int argc, char **argv)
+@{
+ int fd;
+
+ /* Compute the size of the filename and allocate space for it. */
+ int len = strlen (argv[0]) + 6 + 1;
+ char *buf = gmk_alloc (len);
+
+ strcpy (buf, argv[0]);
+ strcat (buf, "XXXXXX");
+
+ fd = mkstemp(buf);
+ if (fd >= 0)
+ @{
+ /* Don't leak the file descriptor. */
+ close (fd);
+ return buf;
+ @}
+
+ /* Failure. */
+ fprintf (stderr, "mkstemp(%s) failed: %s\n", buf, strerror (errno));
+ gmk_free (buf);
+ return NULL;
+@}
+
+int
+mk_temp_gmk_setup ()
+@{
+ /* Register the function with make name "mk-temp". */
+ gmk_add_function ("mk-temp", gen_tmpfile, 1, 1, 1);
+ return 1;
+@}
+@end group
+@end example
+
+Next, we will write a makefile that can build this shared object, load
+it, and use it:
+
+@example
+@group
+all:
+ @@echo Temporary file: $(mk-temp tmpfile.)
+
+load mk_temp.so
+
+mk_temp.so: mk_temp.c
+ $(CC) -shared -fPIC -o $@ $<
+@end group
+@end example
+
+On MS-Windows, due to peculiarities of how shared objects are
+produced, the compiler needs to scan the @dfn{import library} produced
+when building @code{make}, typically called
+@file{libgnumake-@var{version}.dll.a}, where @var{version} is the
+version of the load object API. So the recipe to produce a shared
+object will look on Windows like this (assuming the API version is 1):
+
+@example
+@group
+mk_temp.dll: mk_temp.c
+ $(CC) -shared -o $@ $< -lgnumake-1
+@end group
+@end example
+
+Now when you run @code{make} you'll see something like:
+
+@example
+$ make
+cc -shared -fPIC -o mk_temp.so mk_temp.c
+Temporary filename: tmpfile.A7JEwd
+@end example
+
+@node Integrating make, Features, Extending make, Top
+@chapter Integrating GNU @code{make}
+@cindex make integration
+
+GNU @code{make} is often one component in a larger system of tools,
+including integrated development environments, compiler toolchains,
+and others. The role of @code{make} is to start commands and
+determine whether they succeeded or not: no special integration is
+needed to accomplish that. However, sometimes it is convenient to
+bind @code{make} more tightly with other parts of the system, both
+higher-level (tools that invoke @code{make}) and lower-level (tools
+that @code{make} invokes).
+
+@menu
+* Job Slots:: Share job slots with GNU @code{make}.
+* Terminal Output:: Control output to terminals.
+@end menu
+
+@node Job Slots, Terminal Output, Integrating make, Integrating make
+@section Sharing Job Slots with GNU @code{make}
+@cindex job slots, sharing
+@cindex tools, sharing job slots
+
+GNU @code{make} has the ability to run multiple recipes in parallel
+(@pxref{Parallel, ,Parallel Execution}) and to cap the total number of
+parallel jobs even across recursive invocations of @code{make}
+(@pxref{Options/Recursion, ,Communicating Options to a
+Sub-@code{make}}). Tools that @code{make} invokes which are also able
+to run multiple operations in parallel, either using multiple threads
+or multiple processes, can be enhanced to participate in GNU
+@code{make}'s job management facility to ensure that the total number
+of active threads/processes running on the system does not exceed the
+maximum number of slots provided to GNU @code{make}. @refill
+
+@cindex jobserver
+GNU @code{make} uses a method called the ``jobserver'' to control the
+number of active jobs across recursive invocations. The actual
+implementation of the jobserver varies across different operating
+systems, but some fundamental aspects are always true.
+
+First, only command lines that @code{make} understands to be recursive
+invocations of @code{make} (@pxref{MAKE Variable, ,How the @code{MAKE}
+Variable Works}) will have access to the jobserver. When writing
+makefiles you must be sure to mark the command as recursive (most
+commonly by prefixing the command line with the @code{+} indicator
+(@pxref{Recursion, ,Recursive Use of @code{make}}).
+
+Second, @code{make} will provide information necessary for accessing
+the jobserver through the environment to its children, in the
+@code{MAKEFLAGS} environment variable. Tools which want to
+participate in the jobserver protocol will need to parse this
+environment variable, as described in subsequent sections.
+
+Third, every command @code{make} starts has one implicit job slot
+reserved for it before it starts. Any tool which wants to participate
+in the jobserver protocol should assume it can always run one job
+without having to contact the jobserver at all.
+
+Finally, it's critical that tools that participate in the jobserver
+protocol return the exact number of slots they obtained from the
+jobserver back to the jobserver before they exit, even under error
+conditions. Remember that the implicit job slot should @strong{not}
+be returned to the jobserver! Returning too few slots means that
+those slots will be lost for the rest of the build process; returning
+too many slots means that extra slots will be available. The
+top-level @code{make} command will print an error message at the end
+of the build if it detects an incorrect number of slots available in
+the jobserver.
+
+As an example, suppose you are implementing a linker which provides
+for multithreaded operation. You would like to enhance the linker so
+that if it is invoked by GNU @code{make} it can participate in the
+jobserver protocol to control how many threads are used during link.
+First you will need to modify the linker to determine if the
+@code{MAKEFLAGS} environment variable is set. Next you will need to
+parse the value of that variable to determine if the jobserver is
+available, and how to access it. If it is available then you can
+access it to obtain job slots controlling how much parallelism your
+tool can use. Once done your tool must return those job slots back to
+the jobserver.
+
+@menu
+* POSIX Jobserver:: Using the jobserver on POSIX systems.
+* Windows Jobserver:: Using the jobserver on Windows systems.
+@end menu
+
+@node POSIX Jobserver, Windows Jobserver, Job Slots, Job Slots
+@subsection POSIX Jobserver Interaction
+@cindex jobserver on POSIX
+
+On POSIX systems the jobserver is implemented as a simple UNIX pipe.
+The pipe will be pre-loaded with one single-character token for each
+available job. To obtain an extra slot you must read a single
+character from the jobserver pipe; to release a slot you must write a
+single character back into the jobserver pipe.
+
+To access the pipe you must parse the @code{MAKEFLAGS} variable and
+look for the argument string @code{--jobserver-auth=R,W} where
+@samp{R} and @samp{W} are non-negative integers representing file
+descriptors: @samp{R} is the read file descriptor and @samp{W} is the
+write file descriptor.
+
+It's important that when you release the job slot, you write back the
+same character you read from the pipe for that slot. Don't assume
+that all tokens are the same character; different characters may have
+different meanings to GNU @code{make}. The order is not important,
+since @code{make} has no idea in what order jobs will complete anyway.
+
+There are various error conditions you must consider to ensure your
+implementation is robust:
+
+@itemize @bullet
+@item
+Usually you will have a command-line argument controlling the parallel
+operation of your tool. Consider whether your tool should detect
+situations where both the jobserver and the command-line argument are
+specified, and how it should react.
+
+@item
+If your tool determines that the @code{--jobserver-auth} option is
+available in @code{MAKEFLAGS} but that the file descriptors specified
+are closed, this means that the calling @code{make} process did not
+think that your tool was a recursive @code{make} invocation (e.g., the
+command line was not prefixed with a @code{+} character). You should
+notify your users of this situation.
+
+@item
+Your tool should also examine the first word of the @code{MAKEFLAGS}
+variable and look for the character @code{n}. If this character is
+present then @code{make} was invoked with the @samp{-n} option and
+your tool should stop without performing any operations.
+
+@item
+Your tool should be sure to write back the tokens it read, even under
+error conditions. This includes not only errors in your tool but also
+outside influences such as interrupts (@code{SIGINT}), etc. You may
+want to install signal handlers to manage this write-back.
+@end itemize
+
+@node Windows Jobserver, , POSIX Jobserver, Job Slots
+@subsection Windows Jobserver Interaction
+@cindex jobserver on Windows
+
+On Windows systems the jobserver is implemented as a named semaphore.
+The semaphore will be set with an initial count equal to the number of
+available slots; to obtain a slot you must wait on the semaphore (with
+or without a timeout). To release a slot, release the semaphore.
+
+To access the semaphore you must parse the @code{MAKEFLAGS} variable and
+look for the argument string @code{--jobserver-auth=NAME} where
+@samp{NAME} is the name of the named semaphore. Use this name with
+@code{OpenSemaphore} to create a handle to the semaphore.
+
+There are various error conditions you must consider to ensure your
+implementation is robust:
+
+@itemize @bullet
+@item
+Usually you will have a command-line argument controlling the parallel
+operation of your tool. Consider whether your tool should detect
+situations where both the jobserver and the command-line argument are
+specified, and how it should react.
+
+@item
+Your tool should be sure to release the semaphore for the tokens it
+read, even under error conditions. This includes not only errors in
+your tool but also outside influences such as interrupts
+(@code{SIGINT}), etc. You may want to install signal handlers to
+manage this write-back.
+@end itemize
+
+@node Terminal Output, , Job Slots, Integrating make
+@section Synchronized Terminal Output
+@cindex parallel output to terminal
+@cindex terminal, output to
+
+Normally GNU @code{make} will invoke all commands with access to the
+same standard and error outputs that @code{make} itself was started
+with. A number of tools will detect whether the output is a terminal
+or not-a-terminal, and use this information to change the output
+style. For example if the output goes to a terminal the tool may add
+control characters that set color, or even change the location of the
+cursor. If the output is not going to a terminal then these special
+control characters are not emitted so that they don't corrupt log
+files, etc.
+
+The @code{--output-sync} (@pxref{Parallel Output, ,Output During
+Parallel Output}) option will defeat the terminal detection. When
+output synchronization is enabled GNU @code{make} arranges for all
+command output to be written to a file, so that its output can be
+written as a block without interference from other commands. This
+means that all tools invoked by @code{make} will believe that their
+output is not going to be displayed on a terminal, even when it will
+be (because @code{make} will display it there after the command is
+completed).
+
+In order to facilitate tools which would like to determine whether or
+not their output will be displayed on a terminal, GNU @code{make} will
+set the @code{MAKE_TERMOUT} and @code{MAKE_TERMERR} environment
+variables before invoking any commands. Tools which would like to
+determine whether standard or error output (respectively) will be
+displayed on a terminal can check these environment variables to
+determine if they exist and contain a non-empty value. If so the tool
+can assume that the output will (eventually) be displayed on a
+terminal. If the variables are not set or have an empty value, then
+the tool should fall back to its normal methods of detecting whether
+output is going to a terminal or not.
+
+The content of the variables can be parsed to determine the type of
+terminal which will be used to display the output.
+
+Similarly, environments which invoke @code{make} and would like to
+capture the output and eventually display it on a terminal (or some
+display which can interpret terminal control characters) can set these
+variables before invoking @code{make}. GNU @code{make} will not
+modify these environment variables if they already exist when it
+starts.
+
+@node Features, Missing, Integrating make, Top
+@chapter Features of GNU @code{make}
+@cindex features of GNU @code{make}
+@cindex portability
+@cindex compatibility
+
+Here is a summary of the features of GNU @code{make}, for comparison
+with and credit to other versions of @code{make}. We consider the
+features of @code{make} in 4.2 BSD systems as a baseline. If you are
+concerned with writing portable makefiles, you should not use the
+features of @code{make} listed here, nor the ones in @ref{Missing}.
+
+Many features come from the version of @code{make} in System V.
+
+@itemize @bullet
+@item
+The @code{VPATH} variable and its special meaning.
+@xref{Directory Search, , Searching Directories for Prerequisites}.
+This feature exists in System V @code{make}, but is undocumented.
+It is documented in 4.3 BSD @code{make} (which says it mimics System V's
+@code{VPATH} feature).@refill
+
+@item
+Included makefiles. @xref{Include, ,Including Other Makefiles}.
+Allowing multiple files to be included with a single directive is a GNU
+extension.
+
+@item
+Variables are read from and communicated via the environment.
+@xref{Environment, ,Variables from the Environment}.
+
+@item
+Options passed through the variable @code{MAKEFLAGS} to recursive
+invocations of @code{make}.
+@xref{Options/Recursion, ,Communicating Options to a Sub-@code{make}}.
+
+@item
+The automatic variable @code{$%} is set to the member name
+in an archive reference. @xref{Automatic Variables}.
+
+@item
+The automatic variables @code{$@@}, @code{$*}, @code{$<}, @code{$%},
+and @code{$?} have corresponding forms like @code{$(@@F)} and
+@code{$(@@D)}. We have generalized this to @code{$^} as an obvious
+extension. @xref{Automatic Variables}.@refill
+
+@item
+Substitution variable references.
+@xref{Reference, ,Basics of Variable References}.
+
+@item
+The command line options @samp{-b} and @samp{-m}, accepted and
+ignored. In System V @code{make}, these options actually do something.
+
+@item
+Execution of recursive commands to run @code{make} via the variable
+@code{MAKE} even if @samp{-n}, @samp{-q} or @samp{-t} is specified.
+@xref{Recursion, ,Recursive Use of @code{make}}.
+
+@item
+Support for suffix @samp{.a} in suffix rules. @xref{Archive Suffix
+Rules}. This feature is obsolete in GNU @code{make}, because the
+general feature of rule chaining (@pxref{Chained Rules, ,Chains of
+Implicit Rules}) allows one pattern rule for installing members in an
+archive (@pxref{Archive Update}) to be sufficient.
+
+@item
+The arrangement of lines and backslash/newline combinations in
+recipes is retained when the recipes are printed, so they appear as
+they do in the makefile, except for the stripping of initial
+whitespace.
+@end itemize
+
+The following features were inspired by various other versions of
+@code{make}. In some cases it is unclear exactly which versions inspired
+which others.
+
+@itemize @bullet
+@item
+Pattern rules using @samp{%}.
+This has been implemented in several versions of @code{make}.
+We're not sure who invented it first, but it's been spread around a bit.
+@xref{Pattern Rules, ,Defining and Redefining Pattern Rules}.@refill
+
+@item
+Rule chaining and implicit intermediate files.
+This was implemented by Stu Feldman in his version of @code{make}
+for AT&T Eighth Edition Research Unix, and later by Andrew Hume of
+AT&T Bell Labs in his @code{mk} program (where he terms it
+``transitive closure''). We do not really know if
+we got this from either of them or thought it up ourselves at the
+same time. @xref{Chained Rules, ,Chains of Implicit Rules}.
+
+@item
+The automatic variable @code{$^} containing a list of all prerequisites
+of the current target. We did not invent this, but we have no idea who
+did. @xref{Automatic Variables}. The automatic variable
+@code{$+} is a simple extension of @code{$^}.
+
+@item
+The ``what if'' flag (@samp{-W} in GNU @code{make}) was (as far as we know)
+invented by Andrew Hume in @code{mk}.
+@xref{Instead of Execution, ,Instead of Executing Recipes}.
+
+@item
+The concept of doing several things at once (parallelism) exists in
+many incarnations of @code{make} and similar programs, though not in the
+System V or BSD implementations. @xref{Execution, ,Recipe Execution}.
+
+@item
+A number of different build tools that support parallelism also
+support collecting output and displaying as a single block.
+@xref{Parallel Output, ,Output During Parallel Execution}.
+
+@item
+Modified variable references using pattern substitution come from
+SunOS 4. @xref{Reference, ,Basics of Variable References}.
+This functionality was provided in GNU @code{make} by the
+@code{patsubst} function before the alternate syntax was implemented
+for compatibility with SunOS 4. It is not altogether clear who
+inspired whom, since GNU @code{make} had @code{patsubst} before SunOS
+4 was released.@refill
+
+@item
+The special significance of @samp{+} characters preceding recipe lines
+(@pxref{Instead of Execution, ,Instead of Executing Recipes}) is
+mandated by @cite{IEEE Standard 1003.2-1992} (POSIX.2).
+
+@item
+The @samp{+=} syntax to append to the value of a variable comes from SunOS
+4 @code{make}. @xref{Appending, , Appending More Text to Variables}.
+
+@item
+The syntax @w{@samp{@var{archive}(@var{mem1} @var{mem2}@dots{})}} to list
+multiple members in a single archive file comes from SunOS 4 @code{make}.
+@xref{Archive Members}.
+
+@item
+The @code{-include} directive to include makefiles with no error for a
+nonexistent file comes from SunOS 4 @code{make}. (But note that SunOS 4
+@code{make} does not allow multiple makefiles to be specified in one
+@code{-include} directive.) The same feature appears with the name
+@code{sinclude} in SGI @code{make} and perhaps others.
+
+@item
+The @code{!=} shell assignment operator exists in many BSD of
+@code{make} and is purposefully implemented here to behave identically
+to those implementations.
+
+@item
+Various build management tools are implemented using scripting
+languages such as Perl or Python and thus provide a natural embedded
+scripting language, similar to GNU @code{make}'s integration of GNU
+Guile.
+@end itemize
+
+The remaining features are inventions new in GNU @code{make}:
+
+@itemize @bullet
+@item
+Use the @samp{-v} or @samp{--version} option to print version and
+copyright information.
+
+@item
+Use the @samp{-h} or @samp{--help} option to summarize the options to
+@code{make}.
+
+@item
+Simply-expanded variables. @xref{Flavors, ,The Two Flavors of Variables}.
+
+@item
+Pass command line variable assignments automatically through the
+variable @code{MAKE} to recursive @code{make} invocations.
+@xref{Recursion, ,Recursive Use of @code{make}}.
+
+@item
+Use the @samp{-C} or @samp{--directory} command option to change
+directory. @xref{Options Summary, ,Summary of Options}.
+
+@item
+Make verbatim variable definitions with @code{define}.
+@xref{Multi-Line, ,Defining Multi-Line Variables}.
+
+@item
+Declare phony targets with the special target @code{.PHONY}.
+
+Andrew Hume of AT&T Bell Labs implemented a similar feature with a
+different syntax in his @code{mk} program. This seems to be a case of
+parallel discovery. @xref{Phony Targets, ,Phony Targets}.
+
+@item
+Manipulate text by calling functions.
+@xref{Functions, ,Functions for Transforming Text}.
+
+@item
+Use the @samp{-o} or @samp{--old-file}
+option to pretend a file's modification-time is old.
+@xref{Avoiding Compilation, ,Avoiding Recompilation of Some Files}.
+
+@item
+Conditional execution.
+
+This feature has been implemented numerous times in various versions
+of @code{make}; it seems a natural extension derived from the features
+of the C preprocessor and similar macro languages and is not a
+revolutionary concept. @xref{Conditionals, ,Conditional Parts of Makefiles}.
+
+@item
+Specify a search path for included makefiles.
+@xref{Include, ,Including Other Makefiles}.
+
+@item
+Specify extra makefiles to read with an environment variable.
+@xref{MAKEFILES Variable, ,The Variable @code{MAKEFILES}}.
+
+@item
+Strip leading sequences of @samp{./} from file names, so that
+@file{./@var{file}} and @file{@var{file}} are considered to be the
+same file.@refill
+
+@item
+Use a special search method for library prerequisites written in the
+form @samp{-l@var{name}}.
+@xref{Libraries/Search, ,Directory Search for Link Libraries}.
+
+@item
+Allow suffixes for suffix rules
+(@pxref{Suffix Rules, ,Old-Fashioned Suffix Rules}) to contain any
+characters. In other versions of @code{make}, they must begin with
+@samp{.} and not contain any @samp{/} characters.
+
+@item
+Keep track of the current level of @code{make} recursion using the
+variable @code{MAKELEVEL}. @xref{Recursion, ,Recursive Use of @code{make}}.
+
+@item
+Provide any goals given on the command line in the variable
+@code{MAKECMDGOALS}. @xref{Goals, ,Arguments to Specify the Goals}.
+
+@item
+Specify static pattern rules. @xref{Static Pattern, ,Static Pattern Rules}.
+
+@item
+Provide selective @code{vpath} search.
+@xref{Directory Search, ,Searching Directories for Prerequisites}.
+
+@item
+Provide computed variable references.
+@xref{Reference, ,Basics of Variable References}.
+
+@item
+Update makefiles. @xref{Remaking Makefiles, ,How Makefiles Are Remade}.
+System V @code{make} has a very, very limited form of this
+functionality in that it will check out SCCS files for makefiles.
+
+@item
+Various new built-in implicit rules.
+@xref{Catalogue of Rules, ,Catalogue of Built-In Rules}.
+
+@item
+Load dynamic objects which can modify the behavior of @code{make}.
+@xref{Loading Objects, ,Loading Dynamic Objects}.
+@end itemize
+
+@node Missing, Makefile Conventions, Features, Top
+@chapter Incompatibilities and Missing Features
+@cindex incompatibilities
+@cindex missing features
+@cindex features, missing
+
+The @code{make} programs in various other systems support a few features
+that are not implemented in GNU @code{make}. The POSIX.2 standard
+(@cite{IEEE Standard 1003.2-1992}) which specifies @code{make} does not
+require any of these features.@refill
+
+@itemize @bullet
+@item
+A target of the form @samp{@var{file}((@var{entry}))} stands for a member
+of archive file @var{file}. The member is chosen, not by name, but by
+being an object file which defines the linker symbol @var{entry}.@refill
+
+This feature was not put into GNU @code{make} because of the
+non-modularity of putting knowledge into @code{make} of the internal
+format of archive file symbol tables.
+@xref{Archive Symbols, ,Updating Archive Symbol Directories}.
+
+@item
+Suffixes (used in suffix rules) that end with the character @samp{~}
+have a special meaning to System V @code{make};
+they refer to the SCCS file that corresponds
+to the file one would get without the @samp{~}. For example, the
+suffix rule @samp{.c~.o} would make the file @file{@var{n}.o} from
+the SCCS file @file{s.@var{n}.c}. For complete coverage, a whole
+series of such suffix rules is required.
+@xref{Suffix Rules, ,Old-Fashioned Suffix Rules}.
+
+In GNU @code{make}, this entire series of cases is handled by two
+pattern rules for extraction from SCCS, in combination with the
+general feature of rule chaining.
+@xref{Chained Rules, ,Chains of Implicit Rules}.
+
+@item
+In System V and 4.3 BSD @code{make}, files found by @code{VPATH}
+search (@pxref{Directory Search, ,Searching Directories for
+Prerequisites}) have their names changed inside recipes. We feel it
+is much cleaner to always use automatic variables and thus make this
+feature obsolete.@refill
+
+@item
+In some Unix @code{make}s, the automatic variable @code{$*} appearing in
+the prerequisites of a rule has the amazingly strange ``feature'' of
+expanding to the full name of the @emph{target of that rule}. We cannot
+imagine what went on in the minds of Unix @code{make} developers to do
+this; it is utterly inconsistent with the normal definition of @code{$*}.
+@vindex * @r{(automatic variable), unsupported bizarre usage}
+
+@item
+In some Unix @code{make}s, implicit rule search (@pxref{Implicit
+Rules, ,Using Implicit Rules}) is apparently done for @emph{all}
+targets, not just those without recipes. This means you can
+do:@refill
+
+@example
+@group
+foo.o:
+ cc -c foo.c
+@end group
+@end example
+
+@noindent
+and Unix @code{make} will intuit that @file{foo.o} depends on
+@file{foo.c}.@refill
+
+We feel that such usage is broken. The prerequisite properties of
+@code{make} are well-defined (for GNU @code{make}, at least),
+and doing such a thing simply does not fit the model.@refill
+
+@item
+GNU @code{make} does not include any built-in implicit rules for
+compiling or preprocessing EFL programs. If we hear of anyone who is
+using EFL, we will gladly add them.
+
+@item
+It appears that in SVR4 @code{make}, a suffix rule can be specified
+with no recipe, and it is treated as if it had an empty recipe
+(@pxref{Empty Recipes}). For example:
+
+@example
+.c.a:
+@end example
+
+@noindent
+will override the built-in @file{.c.a} suffix rule.
+
+We feel that it is cleaner for a rule without a recipe to always simply
+add to the prerequisite list for the target. The above example can be
+easily rewritten to get the desired behavior in GNU @code{make}:
+
+@example
+.c.a: ;
+@end example
+
+@item
+Some versions of @code{make} invoke the shell with the @samp{-e} flag,
+except under @samp{-k} (@pxref{Testing, ,Testing the Compilation of a
+Program}). The @samp{-e} flag tells the shell to exit as soon as any
+program it runs returns a nonzero status. We feel it is cleaner to
+write each line of the recipe to stand on its own and not require this
+special treatment.
+@end itemize
+
+@comment The makefile standards are in a separate file that is also
+@comment included by standards.texi.
+@include make-stds.texi
+
+@node Quick Reference, Error Messages, Makefile Conventions, Top
+@appendix Quick Reference
+
+This appendix summarizes the directives, text manipulation functions,
+and special variables which GNU @code{make} understands.
+@xref{Special Targets}, @ref{Catalogue of Rules, ,Catalogue of Built-In Rules},
+and @ref{Options Summary, ,Summary of Options},
+for other summaries.
+
+Here is a summary of the directives GNU @code{make} recognizes:
+
+@table @code
+@item define @var{variable}
+@itemx define @var{variable} =
+@itemx define @var{variable} :=
+@itemx define @var{variable} ::=
+@itemx define @var{variable} +=
+@itemx define @var{variable} ?=
+@itemx endef
+Define multi-line variables.@*
+@xref{Multi-Line}.
+
+@item undefine @var{variable}
+Undefining variables.@*
+@xref{Undefine Directive}.
+
+@item ifdef @var{variable}
+@itemx ifndef @var{variable}
+@itemx ifeq (@var{a},@var{b})
+@itemx ifeq "@var{a}" "@var{b}"
+@itemx ifeq '@var{a}' '@var{b}'
+@itemx ifneq (@var{a},@var{b})
+@itemx ifneq "@var{a}" "@var{b}"
+@itemx ifneq '@var{a}' '@var{b}'
+@itemx else
+@itemx endif
+Conditionally evaluate part of the makefile.@*
+@xref{Conditionals}.
+
+@item include @var{file}
+@itemx -include @var{file}
+@itemx sinclude @var{file}
+Include another makefile.@*
+@xref{Include, ,Including Other Makefiles}.
+
+@item override @var{variable-assignment}
+Define a variable, overriding any previous definition, even one from
+the command line.@*
+@xref{Override Directive, ,The @code{override} Directive}.
+
+@item export
+Tell @code{make} to export all variables to child processes by default.@*
+@xref{Variables/Recursion, , Communicating Variables to a Sub-@code{make}}.
+
+@item export @var{variable}
+@itemx export @var{variable-assignment}
+@itemx unexport @var{variable}
+Tell @code{make} whether or not to export a particular variable to child
+processes.@*
+@xref{Variables/Recursion, , Communicating Variables to a Sub-@code{make}}.
+
+@item private @var{variable-assignment}
+Do not allow this variable assignment to be inherited by prerequisites.@*
+@xref{Suppressing Inheritance}.
+
+@item vpath @var{pattern} @var{path}
+Specify a search path for files matching a @samp{%} pattern.@*
+@xref{Selective Search, , The @code{vpath} Directive}.
+
+@item vpath @var{pattern}
+Remove all search paths previously specified for @var{pattern}.
+
+@item vpath
+Remove all search paths previously specified in any @code{vpath}
+directive.
+@end table
+
+Here is a summary of the built-in functions (@pxref{Functions}):
+
+@table @code
+@item $(subst @var{from},@var{to},@var{text})
+Replace @var{from} with @var{to} in @var{text}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(patsubst @var{pattern},@var{replacement},@var{text})
+Replace words matching @var{pattern} with @var{replacement} in @var{text}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(strip @var{string})
+Remove excess whitespace characters from @var{string}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(findstring @var{find},@var{text})
+Locate @var{find} in @var{text}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(filter @var{pattern}@dots{},@var{text})
+Select words in @var{text} that match one of the @var{pattern} words.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(filter-out @var{pattern}@dots{},@var{text})
+Select words in @var{text} that @emph{do not} match any of the @var{pattern} words.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(sort @var{list})
+Sort the words in @var{list} lexicographically, removing duplicates.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(word @var{n},@var{text})
+Extract the @var{n}th word (one-origin) of @var{text}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(words @var{text})
+Count the number of words in @var{text}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(wordlist @var{s},@var{e},@var{text})
+Returns the list of words in @var{text} from @var{s} to @var{e}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(firstword @var{names}@dots{})
+Extract the first word of @var{names}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(lastword @var{names}@dots{})
+Extract the last word of @var{names}.@*
+@xref{Text Functions, , Functions for String Substitution and Analysis}.
+
+@item $(dir @var{names}@dots{})
+Extract the directory part of each file name.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(notdir @var{names}@dots{})
+Extract the non-directory part of each file name.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(suffix @var{names}@dots{})
+Extract the suffix (the last @samp{.} and following characters) of each file name.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(basename @var{names}@dots{})
+Extract the base name (name without suffix) of each file name.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(addsuffix @var{suffix},@var{names}@dots{})
+Append @var{suffix} to each word in @var{names}.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(addprefix @var{prefix},@var{names}@dots{})
+Prepend @var{prefix} to each word in @var{names}.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(join @var{list1},@var{list2})
+Join two parallel lists of words.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(wildcard @var{pattern}@dots{})
+Find file names matching a shell file name pattern (@emph{not} a
+@samp{%} pattern).@*
+@xref{Wildcard Function, ,The Function @code{wildcard}}.
+
+@item $(realpath @var{names}@dots{})
+For each file name in @var{names}, expand to an absolute name that
+does not contain any @code{.}, @code{..}, nor symlinks.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(abspath @var{names}@dots{})
+For each file name in @var{names}, expand to an absolute name that
+does not contain any @code{.} or @code{..} components, but preserves
+symlinks.@*
+@xref{File Name Functions, ,Functions for File Names}.
+
+@item $(error @var{text}@dots{})
+When this function is evaluated, @code{make} generates a fatal error
+with the message @var{text}.@*
+@xref{Make Control Functions, ,Functions That Control Make}.
+
+@item $(warning @var{text}@dots{})
+When this function is evaluated, @code{make} generates a warning with
+the message @var{text}.@*
+@xref{Make Control Functions, ,Functions That Control Make}.
+
+@item $(shell @var{command})
+Execute a shell command and return its output.@*
+@xref{Shell Function, , The @code{shell} Function}.
+
+@item $(origin @var{variable})
+Return a string describing how the @code{make} variable @var{variable} was
+defined.@*
+@xref{Origin Function, , The @code{origin} Function}.
+
+@item $(flavor @var{variable})
+Return a string describing the flavor of the @code{make} variable
+@var{variable}.@*
+@xref{Flavor Function, , The @code{flavor} Function}.
+
+@item $(foreach @var{var},@var{words},@var{text})
+Evaluate @var{text} with @var{var} bound to each word in @var{words},
+and concatenate the results.@*
+@xref{Foreach Function, ,The @code{foreach} Function}.
+
+@item $(if @var{condition},@var{then-part}[,@var{else-part}])
+Evaluate the condition @var{condition}; if it's non-empty substitute
+the expansion of the @var{then-part} otherwise substitute the
+expansion of the @var{else-part}.@*
+@xref{Conditional Functions, ,Functions for Conditionals}.
+
+@item $(or @var{condition1}[,@var{condition2}[,@var{condition3}@dots{}]])
+Evaluate each condition @var{conditionN} one at a time; substitute the
+first non-empty expansion. If all expansions are empty, substitute
+the empty string.@*
+@xref{Conditional Functions, ,Functions for Conditionals}.
+
+@item $(and @var{condition1}[,@var{condition2}[,@var{condition3}@dots{}]])
+Evaluate each condition @var{conditionN} one at a time; if any
+expansion results in the empty string substitute the empty string. If
+all expansions result in a non-empty string, substitute the expansion
+of the last @var{condition}.@*
+@xref{Conditional Functions, ,Functions for Conditionals}.
+
+@item $(call @var{var},@var{param},@dots{})
+Evaluate the variable @var{var} replacing any references to @code{$(1)},
+@code{$(2)} with the first, second, etc.@: @var{param} values.@*
+@xref{Call Function, ,The @code{call} Function}.
+
+@item $(eval @var{text})
+Evaluate @var{text} then read the results as makefile commands.
+Expands to the empty string.@*
+@xref{Eval Function, ,The @code{eval} Function}.
+
+@item $(file @var{op} @var{filename},@var{text})
+Expand the arguments, then open the file @var{filename} using mode
+@var{op} and write @var{text} to that file.@*
+@xref{File Function, ,The @code{file} Function}.
+
+@item $(value @var{var})
+Evaluates to the contents of the variable @var{var}, with no expansion
+performed on it.@*
+@xref{Value Function, ,The @code{value} Function}.
+@end table
+
+Here is a summary of the automatic variables.
+@xref{Automatic Variables},
+for full information.
+
+@table @code
+@item $@@
+The file name of the target.
+
+@item $%
+The target member name, when the target is an archive member.
+
+@item $<
+The name of the first prerequisite.
+
+@item $?
+The names of all the prerequisites that are
+newer than the target, with spaces between them.
+For prerequisites which are archive members, only
+the named member is used (@pxref{Archives}).
+
+@item $^
+@itemx $+
+The names of all the prerequisites, with spaces between them. For
+prerequisites which are archive members, only the named member is used
+(@pxref{Archives}). The value of @code{$^} omits duplicate
+prerequisites, while @code{$+} retains them and preserves their order.
+
+@item $*
+The stem with which an implicit rule matches
+(@pxref{Pattern Match, ,How Patterns Match}).
+
+@item $(@@D)
+@itemx $(@@F)
+The directory part and the file-within-directory part of @code{$@@}.
+
+@item $(*D)
+@itemx $(*F)
+The directory part and the file-within-directory part of @code{$*}.
+
+@item $(%D)
+@itemx $(%F)
+The directory part and the file-within-directory part of @code{$%}.
+
+@item $(<D)
+@itemx $(<F)
+The directory part and the file-within-directory part of @code{$<}.
+
+@item $(^D)
+@itemx $(^F)
+The directory part and the file-within-directory part of @code{$^}.
+
+@item $(+D)
+@itemx $(+F)
+The directory part and the file-within-directory part of @code{$+}.
+
+@item $(?D)
+@itemx $(?F)
+The directory part and the file-within-directory part of @code{$?}.
+@end table
+
+These variables are used specially by GNU @code{make}:
+
+@table @code
+@item MAKEFILES
+
+Makefiles to be read on every invocation of @code{make}.@*
+@xref{MAKEFILES Variable, ,The Variable @code{MAKEFILES}}.
+
+@item VPATH
+
+Directory search path for files not found in the current directory.@*
+@xref{General Search, , @code{VPATH} Search Path for All Prerequisites}.
+
+@item SHELL
+
+The name of the system default command interpreter, usually @file{/bin/sh}.
+You can set @code{SHELL} in the makefile to change the shell used to run
+recipes. @xref{Execution, ,Recipe Execution}. The @code{SHELL}
+variable is handled specially when importing from and exporting to the
+environment. @xref{Choosing the Shell}.
+
+@item MAKESHELL
+
+On MS-DOS only, the name of the command interpreter that is to be used
+by @code{make}. This value takes precedence over the value of
+@code{SHELL}. @xref{Execution, ,MAKESHELL variable}.
+
+@item MAKE
+
+The name with which @code{make} was invoked. Using this variable in
+recipes has special meaning. @xref{MAKE Variable, ,How the
+@code{MAKE} Variable Works}.
+
+@item MAKE_VERSION
+
+The built-in variable @samp{MAKE_VERSION} expands to the version
+number of the GNU @code{make} program.
+@vindex MAKE_VERSION
+
+@item MAKE_HOST
+
+The built-in variable @samp{MAKE_HOST} expands to a string
+representing the host that GNU @code{make} was built to run on.
+@vindex MAKE_HOST
+
+@item MAKELEVEL
+
+The number of levels of recursion (sub-@code{make}s).@*
+@xref{Variables/Recursion}.
+
+@item MAKEFLAGS
+
+The flags given to @code{make}. You can set this in the environment or
+a makefile to set flags.@*
+@xref{Options/Recursion, ,Communicating Options to a Sub-@code{make}}.
+
+It is @emph{never} appropriate to use @code{MAKEFLAGS} directly in a
+recipe line: its contents may not be quoted correctly for use in the
+shell. Always allow recursive @code{make}'s to obtain these values
+through the environment from its parent.
+
+@item GNUMAKEFLAGS
+
+Other flags parsed by @code{make}. You can set this in the environment or
+a makefile to set @code{make} command-line flags. GNU @code{make}
+never sets this variable itself. This variable is only needed if
+you'd like to set GNU @code{make}-specific flags in a POSIX-compliant
+makefile. This variable will be seen by GNU @code{make} and ignored
+by other @code{make} implementations. It's not needed if you only use
+GNU @code{make}; just use @code{MAKEFLAGS} directly.
+@xref{Options/Recursion, ,Communicating Options to a Sub-@code{make}}.
+
+@item MAKECMDGOALS
+
+The targets given to @code{make} on the command line. Setting this
+variable has no effect on the operation of @code{make}.@*
+@xref{Goals, ,Arguments to Specify the Goals}.
+
+@item CURDIR
+
+Set to the absolute pathname of the current working directory (after
+all @code{-C} options are processed, if any). Setting this variable
+has no effect on the operation of @code{make}.@*
+@xref{Recursion, ,Recursive Use of @code{make}}.
+
+@item SUFFIXES
+
+The default list of suffixes before @code{make} reads any makefiles.
+
+@item .LIBPATTERNS
+Defines the naming of the libraries @code{make} searches for, and their
+order.@*
+@xref{Libraries/Search, ,Directory Search for Link Libraries}.
+@end table
+
+@node Error Messages, Complex Makefile, Quick Reference, Top
+@comment node-name, next, previous, up
+@appendix Errors Generated by Make
+
+Here is a list of the more common errors you might see generated by
+@code{make}, and some information about what they mean and how to fix
+them.
+
+Sometimes @code{make} errors are not fatal, especially in the presence
+of a @code{-} prefix on a recipe line, or the @code{-k} command line
+option. Errors that are fatal are prefixed with the string
+@code{***}.
+
+Error messages are all either prefixed with the name of the program
+(usually @samp{make}), or, if the error is found in a makefile, the name
+of the file and line number containing the problem.
+
+In the table below, these common prefixes are left off.
+
+@table @samp
+
+@item [@var{foo}] Error @var{NN}
+@itemx [@var{foo}] @var{signal description}
+These errors are not really @code{make} errors at all. They mean that a
+program that @code{make} invoked as part of a recipe returned a
+non-0 error code (@samp{Error @var{NN}}), which @code{make} interprets
+as failure, or it exited in some other abnormal fashion (with a
+signal of some type). @xref{Errors, ,Errors in Recipes}.
+
+If no @code{***} is attached to the message, then the sub-process failed
+but the rule in the makefile was prefixed with the @code{-} special
+character, so @code{make} ignored the error.
+
+@item missing separator. Stop.
+@itemx missing separator (did you mean TAB instead of 8 spaces?). Stop.
+This means that @code{make} could not understand much of anything
+about the makefile line it just read. GNU @code{make} looks for
+various separators (@code{:}, @code{=}, recipe prefix characters,
+etc.) to indicate what kind of line it's parsing. This message means
+it couldn't find a valid one.
+
+One of the most common reasons for this message is that you (or
+perhaps your oh-so-helpful editor, as is the case with many MS-Windows
+editors) have attempted to indent your recipe lines with spaces
+instead of a tab character. In this case, @code{make} will use the
+second form of the error above. Remember that every line in the
+recipe must begin with a tab character (unless you set
+@code{.RECIPEPREFIX}; @pxref{Special Variables}). Eight spaces do not
+count. @xref{Rule Syntax}.
+
+@item recipe commences before first target. Stop.
+@itemx missing rule before recipe. Stop.
+This means the first thing in the makefile seems to be part of a
+recipe: it begins with a recipe prefix character and doesn't appear to
+be a legal @code{make} directive (such as a variable assignment).
+Recipes must always be associated with a target.
+
+The second form is generated if the line has a semicolon as the first
+non-whitespace character; @code{make} interprets this to mean you left
+out the "target: prerequisite" section of a rule. @xref{Rule Syntax}.
+
+@item No rule to make target `@var{xxx}'.
+@itemx No rule to make target `@var{xxx}', needed by `@var{yyy}'.
+This means that @code{make} decided it needed to build a target, but
+then couldn't find any instructions in the makefile on how to do that,
+either explicit or implicit (including in the default rules database).
+
+If you want that file to be built, you will need to add a rule to your
+makefile describing how that target can be built. Other possible
+sources of this problem are typos in the makefile (if that file name is
+wrong) or a corrupted source tree (if that file is not supposed to be
+built, but rather only a prerequisite).
+
+@item No targets specified and no makefile found. Stop.
+@itemx No targets. Stop.
+The former means that you didn't provide any targets to be built on the
+command line, and @code{make} couldn't find any makefiles to read in.
+The latter means that some makefile was found, but it didn't contain any
+default goal and none was given on the command line. GNU @code{make}
+has nothing to do in these situations.
+@xref{Makefile Arguments, ,Arguments to Specify the Makefile}.@refill
+
+@item Makefile `@var{xxx}' was not found.
+@itemx Included makefile `@var{xxx}' was not found.
+A makefile specified on the command line (first form) or included
+(second form) was not found.
+
+@item warning: overriding recipe for target `@var{xxx}'
+@itemx warning: ignoring old recipe for target `@var{xxx}'
+GNU @code{make} allows only one recipe to be specified per target
+(except for double-colon rules). If you give a recipe for a target
+which already has been defined to have one, this warning is issued and
+the second recipe will overwrite the first. @xref{Multiple Rules,
+,Multiple Rules for One Target}.
+
+@item Circular @var{xxx} <- @var{yyy} dependency dropped.
+This means that @code{make} detected a loop in the dependency graph:
+after tracing the prerequisite @var{yyy} of target @var{xxx}, and its
+prerequisites, etc., one of them depended on @var{xxx} again.
+
+@item Recursive variable `@var{xxx}' references itself (eventually). Stop.
+This means you've defined a normal (recursive) @code{make} variable
+@var{xxx} that, when it's expanded, will refer to itself (@var{xxx}).
+This is not allowed; either use simply-expanded variables (@samp{:=}
+or @samp{::=}) or use the append operator (@samp{+=}). @xref{Using
+Variables, ,How to Use Variables}.
+
+@item Unterminated variable reference. Stop.
+This means you forgot to provide the proper closing parenthesis
+or brace in your variable or function reference.
+
+@item insufficient arguments to function `@var{xxx}'. Stop.
+This means you haven't provided the requisite number of arguments for
+this function. See the documentation of the function for a description
+of its arguments. @xref{Functions, ,Functions for Transforming Text}.
+
+@item missing target pattern. Stop.
+@itemx multiple target patterns. Stop.
+@itemx target pattern contains no `%'. Stop.
+@itemx mixed implicit and static pattern rules. Stop.
+These are generated for malformed static pattern rules. The first
+means there's no pattern in the target section of the rule; the second
+means there are multiple patterns in the target section; the third
+means the target doesn't contain a pattern character (@code{%}); and
+the fourth means that all three parts of the static pattern rule
+contain pattern characters (@code{%})--only the first two parts
+should. If you see these errors and you aren't trying to create a
+static pattern rule, check the value of any variables in your target
+and prerequisite lists to be sure they do not contain colons.
+@xref{Static Usage, ,Syntax of Static Pattern Rules}.
+
+@item warning: -jN forced in submake: disabling jobserver mode.
+This warning and the next are generated if @code{make} detects error
+conditions related to parallel processing on systems where
+sub-@code{make}s can communicate (@pxref{Options/Recursion,
+,Communicating Options to a Sub-@code{make}}). This warning is
+generated if a recursive invocation of a @code{make} process is forced
+to have @samp{-j@var{N}} in its argument list (where @var{N} is greater
+than one). This could happen, for example, if you set the @code{MAKE}
+environment variable to @samp{make -j2}. In this case, the
+sub-@code{make} doesn't communicate with other @code{make} processes and
+will simply pretend it has two jobs of its own.
+
+@item warning: jobserver unavailable: using -j1. Add `+' to parent make rule.
+In order for @code{make} processes to communicate, the parent will pass
+information to the child. Since this could result in problems if the
+child process isn't actually a @code{make}, the parent will only do this
+if it thinks the child is a @code{make}. The parent uses the normal
+algorithms to determine this (@pxref{MAKE Variable, ,How the @code{MAKE}
+Variable Works}). If the makefile is constructed such that the parent
+doesn't know the child is a @code{make} process, then the child will
+receive only part of the information necessary. In this case, the child
+will generate this warning message and proceed with its build in a
+sequential manner.
+
+@end table
+
+@node Complex Makefile, GNU Free Documentation License, Error Messages, Top
+@appendix Complex Makefile Example
+
+Here is the makefile for the GNU @code{tar} program. This is a
+moderately complex makefile. The first line uses a @code{#!} setting
+to allow the makefile to be executed directly.
+
+Because it is the first target, the default goal is @samp{all}. An
+interesting feature of this makefile is that @file{testpad.h} is a
+source file automatically created by the @code{testpad} program,
+itself compiled from @file{testpad.c}.
+
+If you type @samp{make} or @samp{make all}, then @code{make} creates
+the @file{tar} executable, the @file{rmt} daemon that provides
+remote tape access, and the @file{tar.info} Info file.
+
+If you type @samp{make install}, then @code{make} not only creates
+@file{tar}, @file{rmt}, and @file{tar.info}, but also installs
+them.
+
+If you type @samp{make clean}, then @code{make} removes the @samp{.o}
+files, and the @file{tar}, @file{rmt}, @file{testpad},
+@file{testpad.h}, and @file{core} files.
+
+If you type @samp{make distclean}, then @code{make} not only removes
+the same files as does @samp{make clean} but also the
+@file{TAGS}, @file{Makefile}, and @file{config.status} files.
+(Although it is not evident, this makefile (and
+@file{config.status}) is generated by the user with the
+@code{configure} program, which is provided in the @code{tar}
+distribution, but is not shown here.)
+
+If you type @samp{make realclean}, then @code{make} removes the same
+files as does @samp{make distclean} and also removes the Info files
+generated from @file{tar.texinfo}.
+
+In addition, there are targets @code{shar} and @code{dist} that create
+distribution kits.
+
+@example
+@group
+#!/usr/bin/make -f
+# Generated automatically from Makefile.in by configure.
+# Un*x Makefile for GNU tar program.
+# Copyright (C) 1991 Free Software Foundation, Inc.
+@end group
+
+@group
+# This program is free software; you can redistribute
+# it and/or modify it under the terms of the GNU
+# General Public License @dots{}
+@dots{}
+@dots{}
+@end group
+
+SHELL = /bin/sh
+
+#### Start of system configuration section. ####
+
+srcdir = .
+
+@group
+# If you use gcc, you should either run the
+# fixincludes script that comes with it or else use
+# gcc with the -traditional option. Otherwise ioctl
+# calls will be compiled incorrectly on some systems.
+CC = gcc -O
+YACC = bison -y
+INSTALL = /usr/local/bin/install -c
+INSTALLDATA = /usr/local/bin/install -c -m 644
+@end group
+
+# Things you might add to DEFS:
+# -DSTDC_HEADERS If you have ANSI C headers and
+# libraries.
+# -DPOSIX If you have POSIX.1 headers and
+# libraries.
+# -DBSD42 If you have sys/dir.h (unless
+# you use -DPOSIX), sys/file.h,
+# and st_blocks in `struct stat'.
+# -DUSG If you have System V/ANSI C
+# string and memory functions
+# and headers, sys/sysmacros.h,
+# fcntl.h, getcwd, no valloc,
+# and ndir.h (unless
+# you use -DDIRENT).
+# -DNO_MEMORY_H If USG or STDC_HEADERS but do not
+# include memory.h.
+# -DDIRENT If USG and you have dirent.h
+# instead of ndir.h.
+# -DSIGTYPE=int If your signal handlers
+# return int, not void.
+# -DNO_MTIO If you lack sys/mtio.h
+# (magtape ioctls).
+# -DNO_REMOTE If you do not have a remote shell
+# or rexec.
+# -DUSE_REXEC To use rexec for remote tape
+# operations instead of
+# forking rsh or remsh.
+# -DVPRINTF_MISSING If you lack vprintf function
+# (but have _doprnt).
+# -DDOPRNT_MISSING If you lack _doprnt function.
+# Also need to define
+# -DVPRINTF_MISSING.
+# -DFTIME_MISSING If you lack ftime system call.
+# -DSTRSTR_MISSING If you lack strstr function.
+# -DVALLOC_MISSING If you lack valloc function.
+# -DMKDIR_MISSING If you lack mkdir and
+# rmdir system calls.
+# -DRENAME_MISSING If you lack rename system call.
+# -DFTRUNCATE_MISSING If you lack ftruncate
+# system call.
+# -DV7 On Version 7 Unix (not
+# tested in a long time).
+# -DEMUL_OPEN3 If you lack a 3-argument version
+# of open, and want to emulate it
+# with system calls you do have.
+# -DNO_OPEN3 If you lack the 3-argument open
+# and want to disable the tar -k
+# option instead of emulating open.
+# -DXENIX If you have sys/inode.h
+# and need it 94 to be included.
+
+DEFS = -DSIGTYPE=int -DDIRENT -DSTRSTR_MISSING \
+ -DVPRINTF_MISSING -DBSD42
+# Set this to rtapelib.o unless you defined NO_REMOTE,
+# in which case make it empty.
+RTAPELIB = rtapelib.o
+LIBS =
+DEF_AR_FILE = /dev/rmt8
+DEFBLOCKING = 20
+
+@group
+CDEBUG = -g
+CFLAGS = $(CDEBUG) -I. -I$(srcdir) $(DEFS) \
+ -DDEF_AR_FILE=\"$(DEF_AR_FILE)\" \
+ -DDEFBLOCKING=$(DEFBLOCKING)
+LDFLAGS = -g
+@end group
+
+@group
+prefix = /usr/local
+# Prefix for each installed program,
+# normally empty or `g'.
+binprefix =
+
+# The directory to install tar in.
+bindir = $(prefix)/bin
+
+# The directory to install the info files in.
+infodir = $(prefix)/info
+@end group
+
+#### End of system configuration section. ####
+
+@group
+SRCS_C = tar.c create.c extract.c buffer.c \
+ getoldopt.c update.c gnu.c mangle.c \
+ version.c list.c names.c diffarch.c \
+ port.c wildmat.c getopt.c getopt1.c \
+ regex.c
+SRCS_Y = getdate.y
+SRCS = $(SRCS_C) $(SRCS_Y)
+OBJS = $(SRCS_C:.c=.o) $(SRCS_Y:.y=.o) $(RTAPELIB)
+@end group
+@group
+AUX = README COPYING ChangeLog Makefile.in \
+ makefile.pc configure configure.in \
+ tar.texinfo tar.info* texinfo.tex \
+ tar.h port.h open3.h getopt.h regex.h \
+ rmt.h rmt.c rtapelib.c alloca.c \
+ msd_dir.h msd_dir.c tcexparg.c \
+ level-0 level-1 backup-specs testpad.c
+@end group
+
+.PHONY: all
+all: tar rmt tar.info
+
+@group
+tar: $(OBJS)
+ $(CC) $(LDFLAGS) -o $@@ $(OBJS) $(LIBS)
+@end group
+
+@group
+rmt: rmt.c
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@@ rmt.c
+@end group
+
+@group
+tar.info: tar.texinfo
+ makeinfo tar.texinfo
+@end group
+
+@group
+.PHONY: install
+install: all
+ $(INSTALL) tar $(bindir)/$(binprefix)tar
+ -test ! -f rmt || $(INSTALL) rmt /etc/rmt
+ $(INSTALLDATA) $(srcdir)/tar.info* $(infodir)
+@end group
+
+@group
+$(OBJS): tar.h port.h testpad.h
+regex.o buffer.o tar.o: regex.h
+# getdate.y has 8 shift/reduce conflicts.
+@end group
+
+@group
+testpad.h: testpad
+ ./testpad
+@end group
+
+@group
+testpad: testpad.o
+ $(CC) -o $@@ testpad.o
+@end group
+
+@group
+TAGS: $(SRCS)
+ etags $(SRCS)
+@end group
+
+@group
+.PHONY: clean
+clean:
+ rm -f *.o tar rmt testpad testpad.h core
+@end group
+
+@group
+.PHONY: distclean
+distclean: clean
+ rm -f TAGS Makefile config.status
+@end group
+
+@group
+.PHONY: realclean
+realclean: distclean
+ rm -f tar.info*
+@end group
+
+@group
+.PHONY: shar
+shar: $(SRCS) $(AUX)
+ shar $(SRCS) $(AUX) | compress \
+ > tar-`sed -e '/version_string/!d' \
+ -e 's/[^0-9.]*\([0-9.]*\).*/\1/' \
+ -e q
+ version.c`.shar.Z
+@end group
+
+@group
+.PHONY: dist
+dist: $(SRCS) $(AUX)
+ echo tar-`sed \
+ -e '/version_string/!d' \
+ -e 's/[^0-9.]*\([0-9.]*\).*/\1/' \
+ -e q
+ version.c` > .fname
+ -rm -rf `cat .fname`
+ mkdir `cat .fname`
+ ln $(SRCS) $(AUX) `cat .fname`
+ tar chZf `cat .fname`.tar.Z `cat .fname`
+ -rm -rf `cat .fname` .fname
+@end group
+
+@group
+tar.zoo: $(SRCS) $(AUX)
+ -rm -rf tmp.dir
+ -mkdir tmp.dir
+ -rm tar.zoo
+ for X in $(SRCS) $(AUX) ; do \
+ echo $$X ; \
+ sed 's/$$/^M/' $$X \
+ > tmp.dir/$$X ; done
+ cd tmp.dir ; zoo aM ../tar.zoo *
+ -rm -rf tmp.dir
+@end group
+@end example
+
+@node GNU Free Documentation License, Concept Index, Complex Makefile, Top
+@appendixsec GNU Free Documentation License
+@cindex FDL, GNU Free Documentation License
+@include fdl.texi
+
+@node Concept Index, Name Index, GNU Free Documentation License, Top
+@unnumbered Index of Concepts
+
+@printindex cp
+
+@node Name Index, , Concept Index, Top
+@unnumbered Index of Functions, Variables, & Directives
+
+@printindex fn
+
+@bye
diff --git a/dosbuild.bat b/dosbuild.bat
new file mode 100644
index 0000000..71e71e1
--- /dev/null
+++ b/dosbuild.bat
@@ -0,0 +1,65 @@
+@echo off
+rem Copyright (C) 1998-2016 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
+
+echo Building Make for MSDOS
+
+rem Echo ON so they will see what is going on.
+@echo on
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g commands.c -o commands.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g output.c -o output.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g job.c -o job.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g dir.c -o dir.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g file.c -o file.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g misc.c -o misc.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g main.c -o main.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -DINCLUDEDIR=\"c:/djgpp/include\" -O2 -g read.c -o read.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -DLIBDIR=\"c:/djgpp/lib\" -O2 -g remake.c -o remake.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g rule.c -o rule.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g implicit.c -o implicit.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g default.c -o default.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g variable.c -o variable.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g expand.c -o expand.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g function.c -o function.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g vpath.c -o vpath.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g hash.c -o hash.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g strcache.c -o strcache.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g version.c -o version.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g ar.c -o ar.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g arscan.c -o arscan.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g signame.c -o signame.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g remote-stub.c -o remote-stub.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g getopt.c -o getopt.o
+gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g getopt1.c -o getopt1.o
+@cd glob
+@if exist libglob.a del libglob.a
+gcc -I. -c -DHAVE_CONFIG_H -I.. -O2 -g glob.c -o glob.o
+gcc -I. -c -DHAVE_CONFIG_H -I.. -O2 -g fnmatch.c -o fnmatch.o
+ar rv libglob.a glob.o fnmatch.o
+@echo off
+cd ..
+echo commands.o > respf.$$$
+for %%f in (job output dir file misc main read remake rule implicit default variable) do echo %%f.o >> respf.$$$
+for %%f in (expand function vpath hash strcache version ar arscan signame remote-stub getopt getopt1) do echo %%f.o >> respf.$$$
+echo glob/libglob.a >> respf.$$$
+rem gcc -c -I. -I./glob -DHAVE_CONFIG_H -O2 -g guile.c -o guile.o
+rem echo guile.o >> respf.$$$
+@echo Linking...
+@echo on
+gcc -o make.new @respf.$$$
+@if exist make.exe echo Make.exe is now built!
+@if not exist make.exe echo Make.exe build failed...
+@if exist make.exe del respf.$$$
diff --git a/expand.c b/expand.c
new file mode 100644
index 0000000..0b5fd01
--- /dev/null
+++ b/expand.c
@@ -0,0 +1,595 @@
+/* Variable expansion functions for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "job.h"
+#include "commands.h"
+#include "variable.h"
+#include "rule.h"
+
+/* Initially, any errors reported when expanding strings will be reported
+ against the file where the error appears. */
+const floc **expanding_var = &reading_file;
+
+/* The next two describe the variable output buffer.
+ This buffer is used to hold the variable-expansion of a line of the
+ makefile. It is made bigger with realloc whenever it is too small.
+ variable_buffer_length is the size currently allocated.
+ variable_buffer is the address of the buffer.
+
+ For efficiency, it's guaranteed that the buffer will always have
+ VARIABLE_BUFFER_ZONE extra bytes allocated. This allows you to add a few
+ extra chars without having to call a function. Note you should never use
+ these bytes unless you're _sure_ you have room (you know when the buffer
+ length was last checked. */
+
+#define VARIABLE_BUFFER_ZONE 5
+
+static unsigned int variable_buffer_length;
+char *variable_buffer;
+
+/* Subroutine of variable_expand and friends:
+ The text to add is LENGTH chars starting at STRING to the variable_buffer.
+ The text is added to the buffer at PTR, and the updated pointer into
+ the buffer is returned as the value. Thus, the value returned by
+ each call to variable_buffer_output should be the first argument to
+ the following call. */
+
+char *
+variable_buffer_output (char *ptr, const char *string, unsigned int length)
+{
+ register unsigned int newlen = length + (ptr - variable_buffer);
+
+ if ((newlen + VARIABLE_BUFFER_ZONE) > variable_buffer_length)
+ {
+ unsigned int offset = ptr - variable_buffer;
+ variable_buffer_length = (newlen + 100 > 2 * variable_buffer_length
+ ? newlen + 100
+ : 2 * variable_buffer_length);
+ variable_buffer = xrealloc (variable_buffer, variable_buffer_length);
+ ptr = variable_buffer + offset;
+ }
+
+ memcpy (ptr, string, length);
+ return ptr + length;
+}
+
+/* Return a pointer to the beginning of the variable buffer. */
+
+static char *
+initialize_variable_output (void)
+{
+ /* If we don't have a variable output buffer yet, get one. */
+
+ if (variable_buffer == 0)
+ {
+ variable_buffer_length = 200;
+ variable_buffer = xmalloc (variable_buffer_length);
+ variable_buffer[0] = '\0';
+ }
+
+ return variable_buffer;
+}
+
+/* Recursively expand V. The returned string is malloc'd. */
+
+static char *allocated_variable_append (const struct variable *v);
+
+char *
+recursively_expand_for_file (struct variable *v, struct file *file)
+{
+ char *value;
+ const floc *this_var;
+ const floc **saved_varp;
+ struct variable_set_list *save = 0;
+ int set_reading = 0;
+
+ /* Don't install a new location if this location is empty.
+ This can happen for command-line variables, builtin variables, etc. */
+ saved_varp = expanding_var;
+ if (v->fileinfo.filenm)
+ {
+ this_var = &v->fileinfo;
+ expanding_var = &this_var;
+ }
+
+ /* If we have no other file-reading context, use the variable's context. */
+ if (!reading_file)
+ {
+ set_reading = 1;
+ reading_file = &v->fileinfo;
+ }
+
+ if (v->expanding)
+ {
+ if (!v->exp_count)
+ /* Expanding V causes infinite recursion. Lose. */
+ OS (fatal, *expanding_var,
+ _("Recursive variable '%s' references itself (eventually)"),
+ v->name);
+ --v->exp_count;
+ }
+
+ if (file)
+ {
+ save = current_variable_set_list;
+ current_variable_set_list = file->variables;
+ }
+
+ v->expanding = 1;
+ if (v->append)
+ value = allocated_variable_append (v);
+ else
+ value = allocated_variable_expand (v->value);
+ v->expanding = 0;
+
+ if (set_reading)
+ reading_file = 0;
+
+ if (file)
+ current_variable_set_list = save;
+
+ expanding_var = saved_varp;
+
+ return value;
+}
+
+/* Expand a simple reference to variable NAME, which is LENGTH chars long. */
+
+#ifdef __GNUC__
+__inline
+#endif
+static char *
+reference_variable (char *o, const char *name, unsigned int length)
+{
+ struct variable *v;
+ char *value;
+
+ v = lookup_variable (name, length);
+
+ if (v == 0)
+ warn_undefined (name, length);
+
+ /* If there's no variable by that name or it has no value, stop now. */
+ if (v == 0 || (*v->value == '\0' && !v->append))
+ return o;
+
+ value = (v->recursive ? recursively_expand (v) : v->value);
+
+ o = variable_buffer_output (o, value, strlen (value));
+
+ if (v->recursive)
+ free (value);
+
+ return o;
+}
+
+/* Scan STRING for variable references and expansion-function calls. Only
+ LENGTH bytes of STRING are actually scanned. If LENGTH is -1, scan until
+ a null byte is found.
+
+ Write the results to LINE, which must point into 'variable_buffer'. If
+ LINE is NULL, start at the beginning of the buffer.
+ Return a pointer to LINE, or to the beginning of the buffer if LINE is
+ NULL.
+ */
+char *
+variable_expand_string (char *line, const char *string, long length)
+{
+ struct variable *v;
+ const char *p, *p1;
+ char *save;
+ char *o;
+ unsigned int line_offset;
+
+ if (!line)
+ line = initialize_variable_output ();
+ o = line;
+ line_offset = line - variable_buffer;
+
+ if (length == 0)
+ {
+ variable_buffer_output (o, "", 1);
+ return (variable_buffer);
+ }
+
+ /* We need a copy of STRING: due to eval, it's possible that it will get
+ freed as we process it (it might be the value of a variable that's reset
+ for example). Also having a nil-terminated string is handy. */
+ save = length < 0 ? xstrdup (string) : xstrndup (string, length);
+ p = save;
+
+ while (1)
+ {
+ /* Copy all following uninteresting chars all at once to the
+ variable output buffer, and skip them. Uninteresting chars end
+ at the next $ or the end of the input. */
+
+ p1 = strchr (p, '$');
+
+ o = variable_buffer_output (o, p, p1 != 0 ? (unsigned int)(p1 - p) : strlen (p) + 1);
+
+ if (p1 == 0)
+ break;
+ p = p1 + 1;
+
+ /* Dispatch on the char that follows the $. */
+
+ switch (*p)
+ {
+ case '$':
+ case '\0':
+ /* $$ or $ at the end of the string means output one $ to the
+ variable output buffer. */
+ o = variable_buffer_output (o, p1, 1);
+ break;
+
+ case '(':
+ case '{':
+ /* $(...) or ${...} is the general case of substitution. */
+ {
+ char openparen = *p;
+ char closeparen = (openparen == '(') ? ')' : '}';
+ const char *begp;
+ const char *beg = p + 1;
+ char *op;
+ char *abeg = NULL;
+ const char *end, *colon;
+
+ op = o;
+ begp = p;
+ if (handle_function (&op, &begp))
+ {
+ o = op;
+ p = begp;
+ break;
+ }
+
+ /* Is there a variable reference inside the parens or braces?
+ If so, expand it before expanding the entire reference. */
+
+ end = strchr (beg, closeparen);
+ if (end == 0)
+ /* Unterminated variable reference. */
+ O (fatal, *expanding_var, _("unterminated variable reference"));
+ p1 = lindex (beg, end, '$');
+ if (p1 != 0)
+ {
+ /* BEG now points past the opening paren or brace.
+ Count parens or braces until it is matched. */
+ int count = 0;
+ for (p = beg; *p != '\0'; ++p)
+ {
+ if (*p == openparen)
+ ++count;
+ else if (*p == closeparen && --count < 0)
+ break;
+ }
+ /* If COUNT is >= 0, there were unmatched opening parens
+ or braces, so we go to the simple case of a variable name
+ such as '$($(a)'. */
+ if (count < 0)
+ {
+ abeg = expand_argument (beg, p); /* Expand the name. */
+ beg = abeg;
+ end = strchr (beg, '\0');
+ }
+ }
+ else
+ /* Advance P to the end of this reference. After we are
+ finished expanding this one, P will be incremented to
+ continue the scan. */
+ p = end;
+
+ /* This is not a reference to a built-in function and
+ any variable references inside are now expanded.
+ Is the resultant text a substitution reference? */
+
+ colon = lindex (beg, end, ':');
+ if (colon)
+ {
+ /* This looks like a substitution reference: $(FOO:A=B). */
+ const char *subst_beg = colon + 1;
+ const char *subst_end = lindex (subst_beg, end, '=');
+ if (subst_end == 0)
+ /* There is no = in sight. Punt on the substitution
+ reference and treat this as a variable name containing
+ a colon, in the code below. */
+ colon = 0;
+ else
+ {
+ const char *replace_beg = subst_end + 1;
+ const char *replace_end = end;
+
+ /* Extract the variable name before the colon
+ and look up that variable. */
+ v = lookup_variable (beg, colon - beg);
+ if (v == 0)
+ warn_undefined (beg, colon - beg);
+
+ /* If the variable is not empty, perform the
+ substitution. */
+ if (v != 0 && *v->value != '\0')
+ {
+ char *pattern, *replace, *ppercent, *rpercent;
+ char *value = (v->recursive
+ ? recursively_expand (v)
+ : v->value);
+
+ /* Copy the pattern and the replacement. Add in an
+ extra % at the beginning to use in case there
+ isn't one in the pattern. */
+ pattern = alloca (subst_end - subst_beg + 2);
+ *(pattern++) = '%';
+ memcpy (pattern, subst_beg, subst_end - subst_beg);
+ pattern[subst_end - subst_beg] = '\0';
+
+ replace = alloca (replace_end - replace_beg + 2);
+ *(replace++) = '%';
+ memcpy (replace, replace_beg,
+ replace_end - replace_beg);
+ replace[replace_end - replace_beg] = '\0';
+
+ /* Look for %. Set the percent pointers properly
+ based on whether we find one or not. */
+ ppercent = find_percent (pattern);
+ if (ppercent)
+ {
+ ++ppercent;
+ rpercent = find_percent (replace);
+ if (rpercent)
+ ++rpercent;
+ }
+ else
+ {
+ ppercent = pattern;
+ rpercent = replace;
+ --pattern;
+ --replace;
+ }
+
+ o = patsubst_expand_pat (o, value, pattern, replace,
+ ppercent, rpercent);
+
+ if (v->recursive)
+ free (value);
+ }
+ }
+ }
+
+ if (colon == 0)
+ /* This is an ordinary variable reference.
+ Look up the value of the variable. */
+ o = reference_variable (o, beg, end - beg);
+
+ free (abeg);
+ }
+ break;
+
+ default:
+ if (ISSPACE (p[-1]))
+ break;
+
+ /* A $ followed by a random char is a variable reference:
+ $a is equivalent to $(a). */
+ o = reference_variable (o, p, 1);
+
+ break;
+ }
+
+ if (*p == '\0')
+ break;
+
+ ++p;
+ }
+
+ free (save);
+
+ variable_buffer_output (o, "", 1);
+ return (variable_buffer + line_offset);
+}
+
+/* Scan LINE for variable references and expansion-function calls.
+ Build in 'variable_buffer' the result of expanding the references and calls.
+ Return the address of the resulting string, which is null-terminated
+ and is valid only until the next time this function is called. */
+
+char *
+variable_expand (const char *line)
+{
+ return variable_expand_string (NULL, line, (long)-1);
+}
+
+/* Expand an argument for an expansion function.
+ The text starting at STR and ending at END is variable-expanded
+ into a null-terminated string that is returned as the value.
+ This is done without clobbering 'variable_buffer' or the current
+ variable-expansion that is in progress. */
+
+char *
+expand_argument (const char *str, const char *end)
+{
+ char *tmp, *alloc = NULL;
+ char *r;
+
+ if (str == end)
+ return xstrdup ("");
+
+ if (!end || *end == '\0')
+ return allocated_variable_expand (str);
+
+ if (end - str + 1 > 1000)
+ tmp = alloc = xmalloc (end - str + 1);
+ else
+ tmp = alloca (end - str + 1);
+
+ memcpy (tmp, str, end - str);
+ tmp[end - str] = '\0';
+
+ r = allocated_variable_expand (tmp);
+
+ free (alloc);
+
+ return r;
+}
+
+/* Expand LINE for FILE. Error messages refer to the file and line where
+ FILE's commands were found. Expansion uses FILE's variable set list. */
+
+char *
+variable_expand_for_file (const char *line, struct file *file)
+{
+ char *result;
+ struct variable_set_list *savev;
+ const floc *savef;
+
+ if (file == 0)
+ return variable_expand (line);
+
+ savev = current_variable_set_list;
+ current_variable_set_list = file->variables;
+
+ savef = reading_file;
+ if (file->cmds && file->cmds->fileinfo.filenm)
+ reading_file = &file->cmds->fileinfo;
+ else
+ reading_file = 0;
+
+ result = variable_expand (line);
+
+ current_variable_set_list = savev;
+ reading_file = savef;
+
+ return result;
+}
+
+/* Like allocated_variable_expand, but for += target-specific variables.
+ First recursively construct the variable value from its appended parts in
+ any upper variable sets. Then expand the resulting value. */
+
+static char *
+variable_append (const char *name, unsigned int length,
+ const struct variable_set_list *set, int local)
+{
+ const struct variable *v;
+ char *buf = 0;
+ /* If this set is local and the next is not a parent, then next is local. */
+ int nextlocal = local && set->next_is_parent == 0;
+
+ /* If there's nothing left to check, return the empty buffer. */
+ if (!set)
+ return initialize_variable_output ();
+
+ /* Try to find the variable in this variable set. */
+ v = lookup_variable_in_set (name, length, set->set);
+
+ /* If there isn't one, or this one is private, try the set above us. */
+ if (!v || (!local && v->private_var))
+ return variable_append (name, length, set->next, nextlocal);
+
+ /* If this variable type is append, first get any upper values.
+ If not, initialize the buffer. */
+ if (v->append)
+ buf = variable_append (name, length, set->next, nextlocal);
+ else
+ buf = initialize_variable_output ();
+
+ /* Append this value to the buffer, and return it.
+ If we already have a value, first add a space. */
+ if (buf > variable_buffer)
+ buf = variable_buffer_output (buf, " ", 1);
+
+ /* Either expand it or copy it, depending. */
+ if (! v->recursive)
+ return variable_buffer_output (buf, v->value, strlen (v->value));
+
+ buf = variable_expand_string (buf, v->value, strlen (v->value));
+ return (buf + strlen (buf));
+}
+
+
+static char *
+allocated_variable_append (const struct variable *v)
+{
+ char *val;
+
+ /* Construct the appended variable value. */
+
+ char *obuf = variable_buffer;
+ unsigned int olen = variable_buffer_length;
+
+ variable_buffer = 0;
+
+ val = variable_append (v->name, strlen (v->name),
+ current_variable_set_list, 1);
+ variable_buffer_output (val, "", 1);
+ val = variable_buffer;
+
+ variable_buffer = obuf;
+ variable_buffer_length = olen;
+
+ return val;
+}
+
+/* Like variable_expand_for_file, but the returned string is malloc'd.
+ This function is called a lot. It wants to be efficient. */
+
+char *
+allocated_variable_expand_for_file (const char *line, struct file *file)
+{
+ char *value;
+
+ char *obuf = variable_buffer;
+ unsigned int olen = variable_buffer_length;
+
+ variable_buffer = 0;
+
+ value = variable_expand_for_file (line, file);
+
+ variable_buffer = obuf;
+ variable_buffer_length = olen;
+
+ return value;
+}
+
+/* Install a new variable_buffer context, returning the current one for
+ safe-keeping. */
+
+void
+install_variable_buffer (char **bufp, unsigned int *lenp)
+{
+ *bufp = variable_buffer;
+ *lenp = variable_buffer_length;
+
+ variable_buffer = 0;
+ initialize_variable_output ();
+}
+
+/* Restore a previously-saved variable_buffer setting (free the current one).
+ */
+
+void
+restore_variable_buffer (char *buf, unsigned int len)
+{
+ free (variable_buffer);
+
+ variable_buffer = buf;
+ variable_buffer_length = len;
+}
diff --git a/file.c b/file.c
new file mode 100644
index 0000000..ae1c285
--- /dev/null
+++ b/file.c
@@ -0,0 +1,1148 @@
+/* Target file management for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+#include "variable.h"
+#include "debug.h"
+#include "hash.h"
+
+
+/* Remember whether snap_deps has been invoked: we need this to be sure we
+ don't add new rules (via $(eval ...)) afterwards. In the future it would
+ be nice to support this, but it means we'd need to re-run snap_deps() or
+ at least its functionality... it might mean changing snap_deps() to be run
+ per-file, so we can invoke it after the eval... or remembering which files
+ in the hash have been snapped (a new boolean flag?) and having snap_deps()
+ only work on files which have not yet been snapped. */
+int snapped_deps = 0;
+
+/* Hash table of files the makefile knows how to make. */
+
+static unsigned long
+file_hash_1 (const void *key)
+{
+ return_ISTRING_HASH_1 (((struct file const *) key)->hname);
+}
+
+static unsigned long
+file_hash_2 (const void *key)
+{
+ return_ISTRING_HASH_2 (((struct file const *) key)->hname);
+}
+
+static int
+file_hash_cmp (const void *x, const void *y)
+{
+ return_ISTRING_COMPARE (((struct file const *) x)->hname,
+ ((struct file const *) y)->hname);
+}
+
+static struct hash_table files;
+
+/* Whether or not .SECONDARY with no prerequisites was given. */
+static int all_secondary = 0;
+
+/* Access the hash table of all file records.
+ lookup_file given a name, return the struct file * for that name,
+ or nil if there is none.
+*/
+
+struct file *
+lookup_file (const char *name)
+{
+ struct file *f;
+ struct file file_key;
+#ifdef VMS
+ int want_vmsify;
+#ifndef WANT_CASE_SENSITIVE_TARGETS
+ char *lname;
+#endif
+#endif
+
+ assert (*name != '\0');
+
+ /* This is also done in parse_file_seq, so this is redundant
+ for names read from makefiles. It is here for names passed
+ on the command line. */
+#ifdef VMS
+ want_vmsify = (strpbrk (name, "]>:^") != NULL);
+# ifndef WANT_CASE_SENSITIVE_TARGETS
+ if (*name != '.')
+ {
+ const char *n;
+ char *ln;
+ lname = xstrdup (name);
+ for (n = name, ln = lname; *n != '\0'; ++n, ++ln)
+ *ln = isupper ((unsigned char)*n) ? tolower ((unsigned char)*n) : *n;
+ *ln = '\0';
+ name = lname;
+ }
+# endif
+
+ while (name[0] == '[' && name[1] == ']' && name[2] != '\0')
+ name += 2;
+ while (name[0] == '<' && name[1] == '>' && name[2] != '\0')
+ name += 2;
+#endif
+ while (name[0] == '.'
+#ifdef HAVE_DOS_PATHS
+ && (name[1] == '/' || name[1] == '\\')
+#else
+ && name[1] == '/'
+#endif
+ && name[2] != '\0')
+ {
+ name += 2;
+ while (*name == '/'
+#ifdef HAVE_DOS_PATHS
+ || *name == '\\'
+#endif
+ )
+ /* Skip following slashes: ".//foo" is "foo", not "/foo". */
+ ++name;
+ }
+
+ if (*name == '\0')
+ {
+ /* It was all slashes after a dot. */
+#if defined(_AMIGA)
+ name = "";
+#else
+ name = "./";
+#endif
+#if defined(VMS)
+ /* TODO - This section is probably not needed. */
+ if (want_vmsify)
+ name = "[]";
+#endif
+ }
+ file_key.hname = name;
+ f = hash_find_item (&files, &file_key);
+#if defined(VMS) && !defined(WANT_CASE_SENSITIVE_TARGETS)
+ if (*name != '.')
+ free (lname);
+#endif
+
+ return f;
+}
+
+/* Look up a file record for file NAME and return it.
+ Create a new record if one doesn't exist. NAME will be stored in the
+ new record so it should be constant or in the strcache etc.
+ */
+
+struct file *
+enter_file (const char *name)
+{
+ struct file *f;
+ struct file *new;
+ struct file **file_slot;
+ struct file file_key;
+
+ assert (*name != '\0');
+ assert (! verify_flag || strcache_iscached (name));
+
+#if defined(VMS) && !defined(WANT_CASE_SENSITIVE_TARGETS)
+ if (*name != '.')
+ {
+ const char *n;
+ char *lname, *ln;
+ lname = xstrdup (name);
+ for (n = name, ln = lname; *n != '\0'; ++n, ++ln)
+ if (isupper ((unsigned char)*n))
+ *ln = tolower ((unsigned char)*n);
+ else
+ *ln = *n;
+
+ *ln = '\0';
+ name = strcache_add (lname);
+ free (lname);
+ }
+#endif
+
+ file_key.hname = name;
+ file_slot = (struct file **) hash_find_slot (&files, &file_key);
+ f = *file_slot;
+ if (! HASH_VACANT (f) && !f->double_colon)
+ {
+ f->builtin = 0;
+ return f;
+ }
+
+ new = xcalloc (sizeof (struct file));
+ new->name = new->hname = name;
+ new->update_status = us_none;
+
+ if (HASH_VACANT (f))
+ {
+ new->last = new;
+ hash_insert_at (&files, new, file_slot);
+ }
+ else
+ {
+ /* There is already a double-colon entry for this file. */
+ new->double_colon = f;
+ f->last->prev = new;
+ f->last = new;
+ }
+
+ return new;
+}
+
+/* Rehash FILE to NAME. This is not as simple as resetting
+ the 'hname' member, since it must be put in a new hash bucket,
+ and possibly merged with an existing file called NAME. */
+
+void
+rehash_file (struct file *from_file, const char *to_hname)
+{
+ struct file file_key;
+ struct file **file_slot;
+ struct file *to_file;
+ struct file *deleted_file;
+ struct file *f;
+
+ /* If it's already that name, we're done. */
+ from_file->builtin = 0;
+ file_key.hname = to_hname;
+ if (! file_hash_cmp (from_file, &file_key))
+ return;
+
+ /* Find the end of the renamed list for the "from" file. */
+ file_key.hname = from_file->hname;
+ while (from_file->renamed != 0)
+ from_file = from_file->renamed;
+ if (file_hash_cmp (from_file, &file_key))
+ /* hname changed unexpectedly!! */
+ abort ();
+
+ /* Remove the "from" file from the hash. */
+ deleted_file = hash_delete (&files, from_file);
+ if (deleted_file != from_file)
+ /* from_file isn't the one stored in files */
+ abort ();
+
+ /* Find where the newly renamed file will go in the hash. */
+ file_key.hname = to_hname;
+ file_slot = (struct file **) hash_find_slot (&files, &file_key);
+ to_file = *file_slot;
+
+ /* Change the hash name for this file. */
+ from_file->hname = to_hname;
+ for (f = from_file->double_colon; f != 0; f = f->prev)
+ f->hname = to_hname;
+
+ /* If the new name doesn't exist yet just set it to the renamed file. */
+ if (HASH_VACANT (to_file))
+ {
+ hash_insert_at (&files, from_file, file_slot);
+ return;
+ }
+
+ /* TO_FILE already exists under TO_HNAME.
+ We must retain TO_FILE and merge FROM_FILE into it. */
+
+ if (from_file->cmds != 0)
+ {
+ if (to_file->cmds == 0)
+ to_file->cmds = from_file->cmds;
+ else if (from_file->cmds != to_file->cmds)
+ {
+ size_t l = strlen (from_file->name);
+ /* We have two sets of commands. We will go with the
+ one given in the rule explicitly mentioning this name,
+ but give a message to let the user know what's going on. */
+ if (to_file->cmds->fileinfo.filenm != 0)
+ error (&from_file->cmds->fileinfo,
+ l + strlen (to_file->cmds->fileinfo.filenm) + INTSTR_LENGTH,
+ _("Recipe was specified for file '%s' at %s:%lu,"),
+ from_file->name, to_file->cmds->fileinfo.filenm,
+ to_file->cmds->fileinfo.lineno);
+ else
+ error (&from_file->cmds->fileinfo, l,
+ _("Recipe for file '%s' was found by implicit rule search,"),
+ from_file->name);
+ l += strlen (to_hname);
+ error (&from_file->cmds->fileinfo, l,
+ _("but '%s' is now considered the same file as '%s'."),
+ from_file->name, to_hname);
+ error (&from_file->cmds->fileinfo, l,
+ _("Recipe for '%s' will be ignored in favor of the one for '%s'."),
+ to_hname, from_file->name);
+ }
+ }
+
+ /* Merge the dependencies of the two files. */
+
+ if (to_file->deps == 0)
+ to_file->deps = from_file->deps;
+ else
+ {
+ struct dep *deps = to_file->deps;
+ while (deps->next != 0)
+ deps = deps->next;
+ deps->next = from_file->deps;
+ }
+
+ merge_variable_set_lists (&to_file->variables, from_file->variables);
+
+ if (to_file->double_colon && from_file->is_target && !from_file->double_colon)
+ OSS (fatal, NILF, _("can't rename single-colon '%s' to double-colon '%s'"),
+ from_file->name, to_hname);
+ if (!to_file->double_colon && from_file->double_colon)
+ {
+ if (to_file->is_target)
+ OSS (fatal, NILF,
+ _("can't rename double-colon '%s' to single-colon '%s'"),
+ from_file->name, to_hname);
+ else
+ to_file->double_colon = from_file->double_colon;
+ }
+
+ if (from_file->last_mtime > to_file->last_mtime)
+ /* %%% Kludge so -W wins on a file that gets vpathized. */
+ to_file->last_mtime = from_file->last_mtime;
+
+ to_file->mtime_before_update = from_file->mtime_before_update;
+
+#define MERGE(field) to_file->field |= from_file->field
+ MERGE (precious);
+ MERGE (tried_implicit);
+ MERGE (updating);
+ MERGE (updated);
+ MERGE (is_target);
+ MERGE (cmd_target);
+ MERGE (phony);
+ MERGE (loaded);
+ MERGE (ignore_vpath);
+#undef MERGE
+
+ to_file->builtin = 0;
+ from_file->renamed = to_file;
+}
+
+/* Rename FILE to NAME. This is not as simple as resetting
+ the 'name' member, since it must be put in a new hash bucket,
+ and possibly merged with an existing file called NAME. */
+
+void
+rename_file (struct file *from_file, const char *to_hname)
+{
+ rehash_file (from_file, to_hname);
+ while (from_file)
+ {
+ from_file->name = from_file->hname;
+ from_file = from_file->prev;
+ }
+}
+
+/* Remove all nonprecious intermediate files.
+ If SIG is nonzero, this was caused by a fatal signal,
+ meaning that a different message will be printed, and
+ the message will go to stderr rather than stdout. */
+
+void
+remove_intermediates (int sig)
+{
+ struct file **file_slot;
+ struct file **file_end;
+ int doneany = 0;
+
+ /* If there's no way we will ever remove anything anyway, punt early. */
+ if (question_flag || touch_flag || all_secondary)
+ return;
+
+ if (sig && just_print_flag)
+ return;
+
+ file_slot = (struct file **) files.ht_vec;
+ file_end = file_slot + files.ht_size;
+ for ( ; file_slot < file_end; file_slot++)
+ if (! HASH_VACANT (*file_slot))
+ {
+ struct file *f = *file_slot;
+ /* Is this file eligible for automatic deletion?
+ Yes, IFF: it's marked intermediate, it's not secondary, it wasn't
+ given on the command line, and it's either a -include makefile or
+ it's not precious. */
+ if (f->intermediate && (f->dontcare || !f->precious)
+ && !f->secondary && !f->cmd_target)
+ {
+ int status;
+ if (f->update_status == us_none)
+ /* If nothing would have created this file yet,
+ don't print an "rm" command for it. */
+ continue;
+ if (just_print_flag)
+ status = 0;
+ else
+ {
+ status = unlink (f->name);
+ if (status < 0 && errno == ENOENT)
+ continue;
+ }
+ if (!f->dontcare)
+ {
+ if (sig)
+ OS (error, NILF,
+ _("*** Deleting intermediate file '%s'"), f->name);
+ else
+ {
+ if (! doneany)
+ DB (DB_BASIC, (_("Removing intermediate files...\n")));
+ if (!silent_flag)
+ {
+ if (! doneany)
+ {
+ fputs ("rm ", stdout);
+ doneany = 1;
+ }
+ else
+ putchar (' ');
+ fputs (f->name, stdout);
+ fflush (stdout);
+ }
+ }
+ if (status < 0)
+ perror_with_name ("unlink: ", f->name);
+ }
+ }
+ }
+
+ if (doneany && !sig)
+ {
+ putchar ('\n');
+ fflush (stdout);
+ }
+}
+
+/* Given a string containing prerequisites (fully expanded), break it up into
+ a struct dep list. Enter each of these prereqs into the file database.
+ */
+struct dep *
+split_prereqs (char *p)
+{
+ struct dep *new = PARSE_FILE_SEQ (&p, struct dep, MAP_PIPE, NULL,
+ PARSEFS_NONE);
+
+ if (*p)
+ {
+ /* Files that follow '|' are "order-only" prerequisites that satisfy the
+ dependency by existing: their modification times are irrelevant. */
+ struct dep *ood;
+
+ ++p;
+ ood = PARSE_SIMPLE_SEQ (&p, struct dep);
+
+ if (! new)
+ new = ood;
+ else
+ {
+ struct dep *dp;
+ for (dp = new; dp->next != NULL; dp = dp->next)
+ ;
+ dp->next = ood;
+ }
+
+ for (; ood != NULL; ood = ood->next)
+ ood->ignore_mtime = 1;
+ }
+
+ return new;
+}
+
+/* Given a list of prerequisites, enter them into the file database.
+ If STEM is set then first expand patterns using STEM. */
+struct dep *
+enter_prereqs (struct dep *deps, const char *stem)
+{
+ struct dep *d1;
+
+ if (deps == 0)
+ return 0;
+
+ /* If we have a stem, expand the %'s. We use patsubst_expand to translate
+ the prerequisites' patterns into plain prerequisite names. */
+ if (stem)
+ {
+ const char *pattern = "%";
+ char *buffer = variable_expand ("");
+ struct dep *dp = deps, *dl = 0;
+
+ while (dp != 0)
+ {
+ char *percent;
+ int nl = strlen (dp->name) + 1;
+ char *nm = alloca (nl);
+ memcpy (nm, dp->name, nl);
+ percent = find_percent (nm);
+ if (percent)
+ {
+ char *o;
+
+ /* We have to handle empty stems specially, because that
+ would be equivalent to $(patsubst %,dp->name,) which
+ will always be empty. */
+ if (stem[0] == '\0')
+ {
+ memmove (percent, percent+1, strlen (percent));
+ o = variable_buffer_output (buffer, nm, strlen (nm) + 1);
+ }
+ else
+ o = patsubst_expand_pat (buffer, stem, pattern, nm,
+ pattern+1, percent+1);
+
+ /* If the name expanded to the empty string, ignore it. */
+ if (buffer[0] == '\0')
+ {
+ struct dep *df = dp;
+ if (dp == deps)
+ dp = deps = deps->next;
+ else
+ dp = dl->next = dp->next;
+ free_dep (df);
+ continue;
+ }
+
+ /* Save the name. */
+ dp->name = strcache_add_len (buffer, o - buffer);
+ }
+ dp->stem = stem;
+ dp->staticpattern = 1;
+ dl = dp;
+ dp = dp->next;
+ }
+ }
+
+ /* Enter them as files, unless they need a 2nd expansion. */
+ for (d1 = deps; d1 != 0; d1 = d1->next)
+ {
+ if (d1->need_2nd_expansion)
+ continue;
+
+ d1->file = lookup_file (d1->name);
+ if (d1->file == 0)
+ d1->file = enter_file (d1->name);
+ d1->staticpattern = 0;
+ d1->name = 0;
+ }
+
+ return deps;
+}
+
+/* Set the intermediate flag. */
+
+static void
+set_intermediate (const void *item)
+{
+ struct file *f = (struct file *) item;
+ f->intermediate = 1;
+}
+
+/* Expand and parse each dependency line. */
+static void
+expand_deps (struct file *f)
+{
+ struct dep *d;
+ struct dep **dp;
+ const char *file_stem = f->stem;
+ int initialized = 0;
+
+ f->updating = 0;
+
+ /* Walk through the dependencies. For any dependency that needs 2nd
+ expansion, expand it then insert the result into the list. */
+ dp = &f->deps;
+ d = f->deps;
+ while (d != 0)
+ {
+ char *p;
+ struct dep *new, *next;
+ char *name = (char *)d->name;
+
+ if (! d->name || ! d->need_2nd_expansion)
+ {
+ /* This one is all set already. */
+ dp = &d->next;
+ d = d->next;
+ continue;
+ }
+
+ /* If it's from a static pattern rule, convert the patterns into
+ "$*" so they'll expand properly. */
+ if (d->staticpattern)
+ {
+ char *o = variable_expand ("");
+ o = subst_expand (o, name, "%", "$*", 1, 2, 0);
+ *o = '\0';
+ free (name);
+ d->name = name = xstrdup (variable_buffer);
+ d->staticpattern = 0;
+ }
+
+ /* We're going to do second expansion so initialize file variables for
+ the file. Since the stem for static pattern rules comes from
+ individual dep lines, we will temporarily set f->stem to d->stem. */
+ if (!initialized)
+ {
+ initialize_file_variables (f, 0);
+ initialized = 1;
+ }
+
+ if (d->stem != 0)
+ f->stem = d->stem;
+
+ set_file_variables (f);
+
+ p = variable_expand_for_file (d->name, f);
+
+ if (d->stem != 0)
+ f->stem = file_stem;
+
+ /* At this point we don't need the name anymore: free it. */
+ free (name);
+
+ /* Parse the prerequisites and enter them into the file database. */
+ new = enter_prereqs (split_prereqs (p), d->stem);
+
+ /* If there were no prereqs here (blank!) then throw this one out. */
+ if (new == 0)
+ {
+ *dp = d->next;
+ free_dep (d);
+ d = *dp;
+ continue;
+ }
+
+ /* Add newly parsed prerequisites. */
+ next = d->next;
+ *dp = new;
+ for (dp = &new->next, d = new->next; d != 0; dp = &d->next, d = d->next)
+ ;
+ *dp = next;
+ d = *dp;
+ }
+}
+
+/* Reset the updating flag. */
+
+static void
+reset_updating (const void *item)
+{
+ struct file *f = (struct file *) item;
+ f->updating = 0;
+}
+
+/* For each dependency of each file, make the 'struct dep' point
+ at the appropriate 'struct file' (which may have to be created).
+
+ Also mark the files depended on by .PRECIOUS, .PHONY, .SILENT,
+ and various other special targets. */
+
+void
+snap_deps (void)
+{
+ struct file *f;
+ struct file *f2;
+ struct dep *d;
+
+ /* Remember that we've done this. Once we start snapping deps we can no
+ longer define new targets. */
+ snapped_deps = 1;
+
+ /* Perform second expansion and enter each dependency name as a file. We
+ must use hash_dump() here because within these loops we likely add new
+ files to the table, possibly causing an in-situ table expansion.
+
+ We only need to do this if second_expansion has been defined; if it
+ hasn't then all deps were expanded as the makefile was read in. If we
+ ever change make to be able to unset .SECONDARY_EXPANSION this will have
+ to change. */
+
+ if (second_expansion)
+ {
+ struct file **file_slot_0 = (struct file **) hash_dump (&files, 0, 0);
+ struct file **file_end = file_slot_0 + files.ht_fill;
+ struct file **file_slot;
+ const char *suffixes;
+
+ /* Expand .SUFFIXES: its prerequisites are used for $$* calc. */
+ f = lookup_file (".SUFFIXES");
+ suffixes = f ? f->name : 0;
+ for (; f != 0; f = f->prev)
+ expand_deps (f);
+
+ /* For every target that's not .SUFFIXES, expand its prerequisites. */
+
+ for (file_slot = file_slot_0; file_slot < file_end; file_slot++)
+ for (f = *file_slot; f != 0; f = f->prev)
+ if (f->name != suffixes)
+ expand_deps (f);
+ free (file_slot_0);
+ }
+ else
+ /* We're not doing second expansion, so reset updating. */
+ hash_map (&files, reset_updating);
+
+ /* Now manage all the special targets. */
+
+ for (f = lookup_file (".PRECIOUS"); f != 0; f = f->prev)
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->precious = 1;
+
+ for (f = lookup_file (".LOW_RESOLUTION_TIME"); f != 0; f = f->prev)
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->low_resolution_time = 1;
+
+ for (f = lookup_file (".PHONY"); f != 0; f = f->prev)
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ {
+ /* Mark this file as phony nonexistent target. */
+ f2->phony = 1;
+ f2->is_target = 1;
+ f2->last_mtime = NONEXISTENT_MTIME;
+ f2->mtime_before_update = NONEXISTENT_MTIME;
+ }
+
+ for (f = lookup_file (".INTERMEDIATE"); f != 0; f = f->prev)
+ /* Mark .INTERMEDIATE deps as intermediate files. */
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->intermediate = 1;
+ /* .INTERMEDIATE with no deps does nothing.
+ Marking all files as intermediates is useless since the goal targets
+ would be deleted after they are built. */
+
+ for (f = lookup_file (".SECONDARY"); f != 0; f = f->prev)
+ /* Mark .SECONDARY deps as both intermediate and secondary. */
+ if (f->deps)
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->intermediate = f2->secondary = 1;
+ /* .SECONDARY with no deps listed marks *all* files that way. */
+ else
+ {
+ all_secondary = 1;
+ hash_map (&files, set_intermediate);
+ }
+
+ f = lookup_file (".EXPORT_ALL_VARIABLES");
+ if (f != 0 && f->is_target)
+ export_all_variables = 1;
+
+ f = lookup_file (".IGNORE");
+ if (f != 0 && f->is_target)
+ {
+ if (f->deps == 0)
+ ignore_errors_flag = 1;
+ else
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->command_flags |= COMMANDS_NOERROR;
+ }
+
+ f = lookup_file (".SILENT");
+ if (f != 0 && f->is_target)
+ {
+ if (f->deps == 0)
+ silent_flag = 1;
+ else
+ for (d = f->deps; d != 0; d = d->next)
+ for (f2 = d->file; f2 != 0; f2 = f2->prev)
+ f2->command_flags |= COMMANDS_SILENT;
+ }
+
+ f = lookup_file (".NOTPARALLEL");
+ if (f != 0 && f->is_target)
+ not_parallel = 1;
+
+#ifndef NO_MINUS_C_MINUS_O
+ /* If .POSIX was defined, remove OUTPUT_OPTION to comply. */
+ /* This needs more work: what if the user sets this in the makefile?
+ if (posix_pedantic)
+ define_variable_cname ("OUTPUT_OPTION", "", o_default, 1);
+ */
+#endif
+}
+
+/* Set the 'command_state' member of FILE and all its 'also_make's. */
+
+void
+set_command_state (struct file *file, enum cmd_state state)
+{
+ struct dep *d;
+
+ file->command_state = state;
+
+ for (d = file->also_make; d != 0; d = d->next)
+ d->file->command_state = state;
+}
+
+/* Convert an external file timestamp to internal form. */
+
+FILE_TIMESTAMP
+file_timestamp_cons (const char *fname, time_t stamp, long int ns)
+{
+ int offset = ORDINARY_MTIME_MIN + (FILE_TIMESTAMP_HI_RES ? ns : 0);
+ FILE_TIMESTAMP s = stamp;
+ FILE_TIMESTAMP product = (FILE_TIMESTAMP) s << FILE_TIMESTAMP_LO_BITS;
+ FILE_TIMESTAMP ts = product + offset;
+
+ if (! (s <= FILE_TIMESTAMP_S (ORDINARY_MTIME_MAX)
+ && product <= ts && ts <= ORDINARY_MTIME_MAX))
+ {
+ char buf[FILE_TIMESTAMP_PRINT_LEN_BOUND + 1];
+ const char *f = fname ? fname : _("Current time");
+ ts = s <= OLD_MTIME ? ORDINARY_MTIME_MIN : ORDINARY_MTIME_MAX;
+ file_timestamp_sprintf (buf, ts);
+ OSS (error, NILF,
+ _("%s: Timestamp out of range; substituting %s"), f, buf);
+ }
+
+ return ts;
+}
+
+/* Return the current time as a file timestamp, setting *RESOLUTION to
+ its resolution. */
+FILE_TIMESTAMP
+file_timestamp_now (int *resolution)
+{
+ int r;
+ time_t s;
+ int ns;
+
+ /* Don't bother with high-resolution clocks if file timestamps have
+ only one-second resolution. The code below should work, but it's
+ not worth the hassle of debugging it on hosts where it fails. */
+#if FILE_TIMESTAMP_HI_RES
+# if HAVE_CLOCK_GETTIME && defined CLOCK_REALTIME
+ {
+ struct timespec timespec;
+ if (clock_gettime (CLOCK_REALTIME, ×pec) == 0)
+ {
+ r = 1;
+ s = timespec.tv_sec;
+ ns = timespec.tv_nsec;
+ goto got_time;
+ }
+ }
+# endif
+# if HAVE_GETTIMEOFDAY
+ {
+ struct timeval timeval;
+ if (gettimeofday (&timeval, 0) == 0)
+ {
+ r = 1000;
+ s = timeval.tv_sec;
+ ns = timeval.tv_usec * 1000;
+ goto got_time;
+ }
+ }
+# endif
+#endif
+
+ r = 1000000000;
+ s = time ((time_t *) 0);
+ ns = 0;
+
+#if FILE_TIMESTAMP_HI_RES
+ got_time:
+#endif
+ *resolution = r;
+ return file_timestamp_cons (0, s, ns);
+}
+
+/* Place into the buffer P a printable representation of the file
+ timestamp TS. */
+void
+file_timestamp_sprintf (char *p, FILE_TIMESTAMP ts)
+{
+ time_t t = FILE_TIMESTAMP_S (ts);
+ struct tm *tm = localtime (&t);
+
+ if (tm)
+ sprintf (p, "%04d-%02d-%02d %02d:%02d:%02d",
+ tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ else if (t < 0)
+ sprintf (p, "%ld", (long) t);
+ else
+ sprintf (p, "%lu", (unsigned long) t);
+ p += strlen (p);
+
+ /* Append nanoseconds as a fraction, but remove trailing zeros. We don't
+ know the actual timestamp resolution, since clock_getres applies only to
+ local times, whereas this timestamp might come from a remote filesystem.
+ So removing trailing zeros is the best guess that we can do. */
+ sprintf (p, ".%09d", FILE_TIMESTAMP_NS (ts));
+ p += strlen (p) - 1;
+ while (*p == '0')
+ p--;
+ p += *p != '.';
+
+ *p = '\0';
+}
+
+/* Print the data base of files. */
+
+void
+print_prereqs (const struct dep *deps)
+{
+ const struct dep *ood = 0;
+
+ /* Print all normal dependencies; note any order-only deps. */
+ for (; deps != 0; deps = deps->next)
+ if (! deps->ignore_mtime)
+ printf (" %s", dep_name (deps));
+ else if (! ood)
+ ood = deps;
+
+ /* Print order-only deps, if we have any. */
+ if (ood)
+ {
+ printf (" | %s", dep_name (ood));
+ for (ood = ood->next; ood != 0; ood = ood->next)
+ if (ood->ignore_mtime)
+ printf (" %s", dep_name (ood));
+ }
+
+ putchar ('\n');
+}
+
+static void
+print_file (const void *item)
+{
+ const struct file *f = item;
+
+ /* If we're not using builtin targets, don't show them.
+
+ Ideally we'd be able to delete them altogether but currently there's no
+ facility to ever delete a file once it's been added. */
+ if (no_builtin_rules_flag && f->builtin)
+ return;
+
+ putchar ('\n');
+
+ if (f->cmds && f->cmds->recipe_prefix != cmd_prefix)
+ {
+ fputs (".RECIPEPREFIX = ", stdout);
+ cmd_prefix = f->cmds->recipe_prefix;
+ if (cmd_prefix != RECIPEPREFIX_DEFAULT)
+ putchar (cmd_prefix);
+ putchar ('\n');
+ }
+
+ if (f->variables != 0)
+ print_target_variables (f);
+
+ if (!f->is_target)
+ puts (_("# Not a target:"));
+ printf ("%s:%s", f->name, f->double_colon ? ":" : "");
+ print_prereqs (f->deps);
+
+ if (f->precious)
+ puts (_("# Precious file (prerequisite of .PRECIOUS)."));
+ if (f->phony)
+ puts (_("# Phony target (prerequisite of .PHONY)."));
+ if (f->cmd_target)
+ puts (_("# Command line target."));
+ if (f->dontcare)
+ puts (_("# A default, MAKEFILES, or -include/sinclude makefile."));
+ if (f->builtin)
+ puts (_("# Builtin rule"));
+ puts (f->tried_implicit
+ ? _("# Implicit rule search has been done.")
+ : _("# Implicit rule search has not been done."));
+ if (f->stem != 0)
+ printf (_("# Implicit/static pattern stem: '%s'\n"), f->stem);
+ if (f->intermediate)
+ puts (_("# File is an intermediate prerequisite."));
+ if (f->also_make != 0)
+ {
+ const struct dep *d;
+ fputs (_("# Also makes:"), stdout);
+ for (d = f->also_make; d != 0; d = d->next)
+ printf (" %s", dep_name (d));
+ putchar ('\n');
+ }
+ if (f->last_mtime == UNKNOWN_MTIME)
+ puts (_("# Modification time never checked."));
+ else if (f->last_mtime == NONEXISTENT_MTIME)
+ puts (_("# File does not exist."));
+ else if (f->last_mtime == OLD_MTIME)
+ puts (_("# File is very old."));
+ else
+ {
+ char buf[FILE_TIMESTAMP_PRINT_LEN_BOUND + 1];
+ file_timestamp_sprintf (buf, f->last_mtime);
+ printf (_("# Last modified %s\n"), buf);
+ }
+ puts (f->updated
+ ? _("# File has been updated.") : _("# File has not been updated."));
+ switch (f->command_state)
+ {
+ case cs_running:
+ puts (_("# Recipe currently running (THIS IS A BUG)."));
+ break;
+ case cs_deps_running:
+ puts (_("# Dependencies recipe running (THIS IS A BUG)."));
+ break;
+ case cs_not_started:
+ case cs_finished:
+ switch (f->update_status)
+ {
+ case us_none:
+ break;
+ case us_success:
+ puts (_("# Successfully updated."));
+ break;
+ case us_question:
+ assert (question_flag);
+ puts (_("# Needs to be updated (-q is set)."));
+ break;
+ case us_failed:
+ puts (_("# Failed to be updated."));
+ break;
+ }
+ break;
+ default:
+ puts (_("# Invalid value in 'command_state' member!"));
+ fflush (stdout);
+ fflush (stderr);
+ abort ();
+ }
+
+ if (f->variables != 0)
+ print_file_variables (f);
+
+ if (f->cmds != 0)
+ print_commands (f->cmds);
+
+ if (f->prev)
+ print_file ((const void *) f->prev);
+}
+
+void
+print_file_data_base (void)
+{
+ puts (_("\n# Files"));
+
+ hash_map (&files, print_file);
+
+ fputs (_("\n# files hash-table stats:\n# "), stdout);
+ hash_print_stats (&files, stdout);
+}
+
+/* Verify the integrity of the data base of files. */
+
+#define VERIFY_CACHED(_p,_n) \
+ do{ \
+ if (_p->_n && _p->_n[0] && !strcache_iscached (_p->_n)) \
+ error (NULL, strlen (_p->name) + CSTRLEN (# _n) + strlen (_p->_n), \
+ _("%s: Field '%s' not cached: %s"), _p->name, # _n, _p->_n); \
+ }while(0)
+
+static void
+verify_file (const void *item)
+{
+ const struct file *f = item;
+ const struct dep *d;
+
+ VERIFY_CACHED (f, name);
+ VERIFY_CACHED (f, hname);
+ VERIFY_CACHED (f, vpath);
+ VERIFY_CACHED (f, stem);
+
+ /* Check the deps. */
+ for (d = f->deps; d != 0; d = d->next)
+ {
+ if (! d->need_2nd_expansion)
+ VERIFY_CACHED (d, name);
+ VERIFY_CACHED (d, stem);
+ }
+}
+
+void
+verify_file_data_base (void)
+{
+ hash_map (&files, verify_file);
+}
+
+#define EXPANSION_INCREMENT(_l) ((((_l) / 500) + 1) * 500)
+
+char *
+build_target_list (char *value)
+{
+ static unsigned long last_targ_count = 0;
+
+ if (files.ht_fill != last_targ_count)
+ {
+ unsigned long max = EXPANSION_INCREMENT (strlen (value));
+ unsigned long len;
+ char *p;
+ struct file **fp = (struct file **) files.ht_vec;
+ struct file **end = &fp[files.ht_size];
+
+ /* Make sure we have at least MAX bytes in the allocated buffer. */
+ value = xrealloc (value, max);
+
+ p = value;
+ len = 0;
+ for (; fp < end; ++fp)
+ if (!HASH_VACANT (*fp) && (*fp)->is_target)
+ {
+ struct file *f = *fp;
+ int l = strlen (f->name);
+
+ len += l + 1;
+ if (len > max)
+ {
+ unsigned long off = p - value;
+
+ max += EXPANSION_INCREMENT (l + 1);
+ value = xrealloc (value, max);
+ p = &value[off];
+ }
+
+ memcpy (p, f->name, l);
+ p += l;
+ *(p++) = ' ';
+ }
+ *(p-1) = '\0';
+
+ last_targ_count = files.ht_fill;
+ }
+
+ return value;
+}
+
+void
+init_hash_files (void)
+{
+ hash_init (&files, 1000, file_hash_1, file_hash_2, file_hash_cmp);
+}
+
+/* EOF */
diff --git a/filedef.h b/filedef.h
new file mode 100644
index 0000000..14b4187
--- /dev/null
+++ b/filedef.h
@@ -0,0 +1,212 @@
+/* Definition of target file data structures for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Structure that represents the info on one file
+ that the makefile says how to make.
+ All of these are chained together through 'next'. */
+
+#include "hash.h"
+
+struct file
+ {
+ const char *name;
+ const char *hname; /* Hashed filename */
+ const char *vpath; /* VPATH/vpath pathname */
+ struct dep *deps; /* all dependencies, including duplicates */
+ struct commands *cmds; /* Commands to execute for this target. */
+ const char *stem; /* Implicit stem, if an implicit
+ rule has been used */
+ struct dep *also_make; /* Targets that are made by making this. */
+ struct file *prev; /* Previous entry for same file name;
+ used when there are multiple double-colon
+ entries for the same file. */
+ struct file *last; /* Last entry for the same file name. */
+
+ /* File that this file was renamed to. After any time that a
+ file could be renamed, call 'check_renamed' (below). */
+ struct file *renamed;
+
+ /* List of variable sets used for this file. */
+ struct variable_set_list *variables;
+
+ /* Pattern-specific variable reference for this target, or null if there
+ isn't one. Also see the pat_searched flag, below. */
+ struct variable_set_list *pat_variables;
+
+ /* Immediate dependent that caused this target to be remade,
+ or nil if there isn't one. */
+ struct file *parent;
+
+ /* For a double-colon entry, this is the first double-colon entry for
+ the same file. Otherwise this is null. */
+ struct file *double_colon;
+
+ FILE_TIMESTAMP last_mtime; /* File's modtime, if already known. */
+ FILE_TIMESTAMP mtime_before_update; /* File's modtime before any updating
+ has been performed. */
+ unsigned int considered; /* equal to 'considered' if file has been
+ considered on current scan of goal chain */
+ int command_flags; /* Flags OR'd in for cmds; see commands.h. */
+ enum update_status /* Status of the last attempt to update. */
+ {
+ us_success = 0, /* Successfully updated. Must be 0! */
+ us_none, /* No attempt to update has been made. */
+ us_question, /* Needs to be updated (-q is is set). */
+ us_failed /* Update failed. */
+ } update_status ENUM_BITFIELD (2);
+ enum cmd_state /* State of the commands. */
+ {
+ cs_not_started = 0, /* Not yet started. Must be 0! */
+ cs_deps_running, /* Dep commands running. */
+ cs_running, /* Commands running. */
+ cs_finished /* Commands finished. */
+ } command_state ENUM_BITFIELD (2);
+
+ unsigned int builtin:1; /* True if the file is a builtin rule. */
+ unsigned int precious:1; /* Non-0 means don't delete file on quit */
+ unsigned int loaded:1; /* True if the file is a loaded object. */
+ unsigned int low_resolution_time:1; /* Nonzero if this file's time stamp
+ has only one-second resolution. */
+ unsigned int tried_implicit:1; /* Nonzero if have searched
+ for implicit rule for making
+ this file; don't search again. */
+ unsigned int updating:1; /* Nonzero while updating deps of this file */
+ unsigned int updated:1; /* Nonzero if this file has been remade. */
+ unsigned int is_target:1; /* Nonzero if file is described as target. */
+ unsigned int cmd_target:1; /* Nonzero if file was given on cmd line. */
+ unsigned int phony:1; /* Nonzero if this is a phony file
+ i.e., a prerequisite of .PHONY. */
+ unsigned int intermediate:1;/* Nonzero if this is an intermediate file. */
+ unsigned int secondary:1; /* Nonzero means remove_intermediates should
+ not delete it. */
+ unsigned int dontcare:1; /* Nonzero if no complaint is to be made if
+ this target cannot be remade. */
+ unsigned int ignore_vpath:1;/* Nonzero if we threw out VPATH name. */
+ unsigned int pat_searched:1;/* Nonzero if we already searched for
+ pattern-specific variables. */
+ unsigned int no_diag:1; /* True if the file failed to update and no
+ diagnostics has been issued (dontcare). */
+ };
+
+
+extern struct file *default_file;
+
+
+struct file *lookup_file (const char *name);
+struct file *enter_file (const char *name);
+struct dep *split_prereqs (char *prereqstr);
+struct dep *enter_prereqs (struct dep *prereqs, const char *stem);
+void remove_intermediates (int sig);
+void snap_deps (void);
+void rename_file (struct file *file, const char *name);
+void rehash_file (struct file *file, const char *name);
+void set_command_state (struct file *file, enum cmd_state state);
+void notice_finished_file (struct file *file);
+void init_hash_files (void);
+void verify_file_data_base (void);
+char *build_target_list (char *old_list);
+void print_prereqs (const struct dep *deps);
+void print_file_data_base (void);
+int try_implicit_rule (struct file *file, unsigned int depth);
+int stemlen_compare (const void *v1, const void *v2);
+
+#if FILE_TIMESTAMP_HI_RES
+# define FILE_TIMESTAMP_STAT_MODTIME(fname, st) \
+ file_timestamp_cons (fname, (st).st_mtime, (st).ST_MTIM_NSEC)
+#else
+# define FILE_TIMESTAMP_STAT_MODTIME(fname, st) \
+ file_timestamp_cons (fname, (st).st_mtime, 0)
+#endif
+
+/* If FILE_TIMESTAMP is 64 bits (or more), use nanosecond resolution.
+ (Multiply by 2**30 instead of by 10**9 to save time at the cost of
+ slightly decreasing the number of available timestamps.) With
+ 64-bit FILE_TIMESTAMP, this stops working on 2514-05-30 01:53:04
+ UTC, but by then uintmax_t should be larger than 64 bits. */
+#define FILE_TIMESTAMPS_PER_S (FILE_TIMESTAMP_HI_RES ? 1000000000 : 1)
+#define FILE_TIMESTAMP_LO_BITS (FILE_TIMESTAMP_HI_RES ? 30 : 0)
+
+#define FILE_TIMESTAMP_S(ts) (((ts) - ORDINARY_MTIME_MIN) \
+ >> FILE_TIMESTAMP_LO_BITS)
+#define FILE_TIMESTAMP_NS(ts) ((int) (((ts) - ORDINARY_MTIME_MIN) \
+ & ((1 << FILE_TIMESTAMP_LO_BITS) - 1)))
+
+/* Upper bound on length of string "YYYY-MM-DD HH:MM:SS.NNNNNNNNN"
+ representing a file timestamp. The upper bound is not necessarily 29,
+ since the year might be less than -999 or greater than 9999.
+
+ Subtract one for the sign bit if in case file timestamps can be negative;
+ subtract FLOOR_LOG2_SECONDS_PER_YEAR to yield an upper bound on how many
+ file timestamp bits might affect the year;
+ 302 / 1000 is log10 (2) rounded up;
+ add one for integer division truncation;
+ add one more for a minus sign if file timestamps can be negative;
+ add 4 to allow for any 4-digit epoch year (e.g. 1970);
+ add 25 to allow for "-MM-DD HH:MM:SS.NNNNNNNNN". */
+#define FLOOR_LOG2_SECONDS_PER_YEAR 24
+#define FILE_TIMESTAMP_PRINT_LEN_BOUND \
+ (((sizeof (FILE_TIMESTAMP) * CHAR_BIT - 1 - FLOOR_LOG2_SECONDS_PER_YEAR) \
+ * 302 / 1000) \
+ + 1 + 1 + 4 + 25)
+
+FILE_TIMESTAMP file_timestamp_cons (char const *, time_t, long int);
+FILE_TIMESTAMP file_timestamp_now (int *);
+void file_timestamp_sprintf (char *p, FILE_TIMESTAMP ts);
+
+/* Return the mtime of file F (a struct file *), caching it.
+ The value is NONEXISTENT_MTIME if the file does not exist. */
+#define file_mtime(f) file_mtime_1 ((f), 1)
+/* Return the mtime of file F (a struct file *), caching it.
+ Don't search using vpath for the file--if it doesn't actually exist,
+ we don't find it.
+ The value is NONEXISTENT_MTIME if the file does not exist. */
+#define file_mtime_no_search(f) file_mtime_1 ((f), 0)
+FILE_TIMESTAMP f_mtime (struct file *file, int search);
+#define file_mtime_1(f, v) \
+ ((f)->last_mtime == UNKNOWN_MTIME ? f_mtime ((f), v) : (f)->last_mtime)
+
+/* Special timestamp values. */
+
+/* The file's timestamp is not yet known. */
+#define UNKNOWN_MTIME 0
+
+/* The file does not exist. */
+#define NONEXISTENT_MTIME 1
+
+/* The file does not exist, and we assume that it is older than any
+ actual file. */
+#define OLD_MTIME 2
+
+/* The smallest and largest ordinary timestamps. */
+#define ORDINARY_MTIME_MIN (OLD_MTIME + 1)
+#define ORDINARY_MTIME_MAX ((FILE_TIMESTAMP_S (NEW_MTIME) \
+ << FILE_TIMESTAMP_LO_BITS) \
+ + ORDINARY_MTIME_MIN + FILE_TIMESTAMPS_PER_S - 1)
+
+/* Modtime value to use for 'infinitely new'. We used to get the current time
+ from the system and use that whenever we wanted 'new'. But that causes
+ trouble when the machine running make and the machine holding a file have
+ different ideas about what time it is; and can also lose for 'force'
+ targets, which need to be considered newer than anything that depends on
+ them, even if said dependents' modtimes are in the future. */
+#define NEW_MTIME INTEGER_TYPE_MAXIMUM (FILE_TIMESTAMP)
+
+#define check_renamed(file) \
+ while ((file)->renamed != 0) (file) = (file)->renamed /* No ; here. */
+
+/* Have we snapped deps yet? */
+extern int snapped_deps;
diff --git a/function.c b/function.c
new file mode 100644
index 0000000..b7f0e56
--- /dev/null
+++ b/function.c
@@ -0,0 +1,2682 @@
+/* Builtin function expansion for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "variable.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+#include "debug.h"
+
+#ifdef _AMIGA
+#include "amiga.h"
+#endif
+
+
+struct function_table_entry
+ {
+ union {
+ char *(*func_ptr) (char *output, char **argv, const char *fname);
+ gmk_func_ptr alloc_func_ptr;
+ } fptr;
+ const char *name;
+ unsigned char len;
+ unsigned char minimum_args;
+ unsigned char maximum_args;
+ unsigned char expand_args:1;
+ unsigned char alloc_fn:1;
+ };
+
+static unsigned long
+function_table_entry_hash_1 (const void *keyv)
+{
+ const struct function_table_entry *key = keyv;
+ return_STRING_N_HASH_1 (key->name, key->len);
+}
+
+static unsigned long
+function_table_entry_hash_2 (const void *keyv)
+{
+ const struct function_table_entry *key = keyv;
+ return_STRING_N_HASH_2 (key->name, key->len);
+}
+
+static int
+function_table_entry_hash_cmp (const void *xv, const void *yv)
+{
+ const struct function_table_entry *x = xv;
+ const struct function_table_entry *y = yv;
+ int result = x->len - y->len;
+ if (result)
+ return result;
+ return_STRING_N_COMPARE (x->name, y->name, x->len);
+}
+
+static struct hash_table function_table;
+
+
+/* Store into VARIABLE_BUFFER at O the result of scanning TEXT and replacing
+ each occurrence of SUBST with REPLACE. TEXT is null-terminated. SLEN is
+ the length of SUBST and RLEN is the length of REPLACE. If BY_WORD is
+ nonzero, substitutions are done only on matches which are complete
+ whitespace-delimited words. */
+
+char *
+subst_expand (char *o, const char *text, const char *subst, const char *replace,
+ unsigned int slen, unsigned int rlen, int by_word)
+{
+ const char *t = text;
+ const char *p;
+
+ if (slen == 0 && !by_word)
+ {
+ /* The first occurrence of "" in any string is its end. */
+ o = variable_buffer_output (o, t, strlen (t));
+ if (rlen > 0)
+ o = variable_buffer_output (o, replace, rlen);
+ return o;
+ }
+
+ do
+ {
+ if (by_word && slen == 0)
+ /* When matching by words, the empty string should match
+ the end of each word, rather than the end of the whole text. */
+ p = end_of_token (next_token (t));
+ else
+ {
+ p = strstr (t, subst);
+ if (p == 0)
+ {
+ /* No more matches. Output everything left on the end. */
+ o = variable_buffer_output (o, t, strlen (t));
+ return o;
+ }
+ }
+
+ /* Output everything before this occurrence of the string to replace. */
+ if (p > t)
+ o = variable_buffer_output (o, t, p - t);
+
+ /* If we're substituting only by fully matched words,
+ or only at the ends of words, check that this case qualifies. */
+ if (by_word
+ && ((p > text && !ISSPACE (p[-1]))
+ || ! STOP_SET (p[slen], MAP_SPACE|MAP_NUL)))
+ /* Struck out. Output the rest of the string that is
+ no longer to be replaced. */
+ o = variable_buffer_output (o, subst, slen);
+ else if (rlen > 0)
+ /* Output the replacement string. */
+ o = variable_buffer_output (o, replace, rlen);
+
+ /* Advance T past the string to be replaced. */
+ t = p + slen;
+ } while (*t != '\0');
+
+ return o;
+}
+
+
+/* Store into VARIABLE_BUFFER at O the result of scanning TEXT
+ and replacing strings matching PATTERN with REPLACE.
+ If PATTERN_PERCENT is not nil, PATTERN has already been
+ run through find_percent, and PATTERN_PERCENT is the result.
+ If REPLACE_PERCENT is not nil, REPLACE has already been
+ run through find_percent, and REPLACE_PERCENT is the result.
+ Note that we expect PATTERN_PERCENT and REPLACE_PERCENT to point to the
+ character _AFTER_ the %, not to the % itself.
+*/
+
+char *
+patsubst_expand_pat (char *o, const char *text,
+ const char *pattern, const char *replace,
+ const char *pattern_percent, const char *replace_percent)
+{
+ unsigned int pattern_prepercent_len, pattern_postpercent_len;
+ unsigned int replace_prepercent_len, replace_postpercent_len;
+ const char *t;
+ unsigned int len;
+ int doneany = 0;
+
+ /* Record the length of REPLACE before and after the % so we don't have to
+ compute these lengths more than once. */
+ if (replace_percent)
+ {
+ replace_prepercent_len = replace_percent - replace - 1;
+ replace_postpercent_len = strlen (replace_percent);
+ }
+ else
+ {
+ replace_prepercent_len = strlen (replace);
+ replace_postpercent_len = 0;
+ }
+
+ if (!pattern_percent)
+ /* With no % in the pattern, this is just a simple substitution. */
+ return subst_expand (o, text, pattern, replace,
+ strlen (pattern), strlen (replace), 1);
+
+ /* Record the length of PATTERN before and after the %
+ so we don't have to compute it more than once. */
+ pattern_prepercent_len = pattern_percent - pattern - 1;
+ pattern_postpercent_len = strlen (pattern_percent);
+
+ while ((t = find_next_token (&text, &len)) != 0)
+ {
+ int fail = 0;
+
+ /* Is it big enough to match? */
+ if (len < pattern_prepercent_len + pattern_postpercent_len)
+ fail = 1;
+
+ /* Does the prefix match? */
+ if (!fail && pattern_prepercent_len > 0
+ && (*t != *pattern
+ || t[pattern_prepercent_len - 1] != pattern_percent[-2]
+ || !strneq (t + 1, pattern + 1, pattern_prepercent_len - 1)))
+ fail = 1;
+
+ /* Does the suffix match? */
+ if (!fail && pattern_postpercent_len > 0
+ && (t[len - 1] != pattern_percent[pattern_postpercent_len - 1]
+ || t[len - pattern_postpercent_len] != *pattern_percent
+ || !strneq (&t[len - pattern_postpercent_len],
+ pattern_percent, pattern_postpercent_len - 1)))
+ fail = 1;
+
+ if (fail)
+ /* It didn't match. Output the string. */
+ o = variable_buffer_output (o, t, len);
+ else
+ {
+ /* It matched. Output the replacement. */
+
+ /* Output the part of the replacement before the %. */
+ o = variable_buffer_output (o, replace, replace_prepercent_len);
+
+ if (replace_percent != 0)
+ {
+ /* Output the part of the matched string that
+ matched the % in the pattern. */
+ o = variable_buffer_output (o, t + pattern_prepercent_len,
+ len - (pattern_prepercent_len
+ + pattern_postpercent_len));
+ /* Output the part of the replacement after the %. */
+ o = variable_buffer_output (o, replace_percent,
+ replace_postpercent_len);
+ }
+ }
+
+ /* Output a space, but not if the replacement is "". */
+ if (fail || replace_prepercent_len > 0
+ || (replace_percent != 0 && len + replace_postpercent_len > 0))
+ {
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+ }
+ if (doneany)
+ /* Kill the last space. */
+ --o;
+
+ return o;
+}
+
+/* Store into VARIABLE_BUFFER at O the result of scanning TEXT
+ and replacing strings matching PATTERN with REPLACE.
+ If PATTERN_PERCENT is not nil, PATTERN has already been
+ run through find_percent, and PATTERN_PERCENT is the result.
+ If REPLACE_PERCENT is not nil, REPLACE has already been
+ run through find_percent, and REPLACE_PERCENT is the result.
+ Note that we expect PATTERN_PERCENT and REPLACE_PERCENT to point to the
+ character _AFTER_ the %, not to the % itself.
+*/
+
+char *
+patsubst_expand (char *o, const char *text, char *pattern, char *replace)
+{
+ const char *pattern_percent = find_percent (pattern);
+ const char *replace_percent = find_percent (replace);
+
+ /* If there's a percent in the pattern or replacement skip it. */
+ if (replace_percent)
+ ++replace_percent;
+ if (pattern_percent)
+ ++pattern_percent;
+
+ return patsubst_expand_pat (o, text, pattern, replace,
+ pattern_percent, replace_percent);
+}
+
+
+/* Look up a function by name. */
+
+static const struct function_table_entry *
+lookup_function (const char *s)
+{
+ struct function_table_entry function_table_entry_key;
+ const char *e = s;
+
+ while (STOP_SET (*e, MAP_USERFUNC))
+ e++;
+
+ if (e == s || !STOP_SET(*e, MAP_NUL|MAP_SPACE))
+ return NULL;
+
+ function_table_entry_key.name = s;
+ function_table_entry_key.len = e - s;
+
+ return hash_find_item (&function_table, &function_table_entry_key);
+}
+
+
+/* Return 1 if PATTERN matches STR, 0 if not. */
+
+int
+pattern_matches (const char *pattern, const char *percent, const char *str)
+{
+ unsigned int sfxlen, strlength;
+
+ if (percent == 0)
+ {
+ unsigned int len = strlen (pattern) + 1;
+ char *new_chars = alloca (len);
+ memcpy (new_chars, pattern, len);
+ percent = find_percent (new_chars);
+ if (percent == 0)
+ return streq (new_chars, str);
+ pattern = new_chars;
+ }
+
+ sfxlen = strlen (percent + 1);
+ strlength = strlen (str);
+
+ if (strlength < (percent - pattern) + sfxlen
+ || !strneq (pattern, str, percent - pattern))
+ return 0;
+
+ return !strcmp (percent + 1, str + (strlength - sfxlen));
+}
+
+
+/* Find the next comma or ENDPAREN (counting nested STARTPAREN and
+ ENDPARENtheses), starting at PTR before END. Return a pointer to
+ next character.
+
+ If no next argument is found, return NULL.
+*/
+
+static char *
+find_next_argument (char startparen, char endparen,
+ const char *ptr, const char *end)
+{
+ int count = 0;
+
+ for (; ptr < end; ++ptr)
+ if (*ptr == startparen)
+ ++count;
+
+ else if (*ptr == endparen)
+ {
+ --count;
+ if (count < 0)
+ return NULL;
+ }
+
+ else if (*ptr == ',' && !count)
+ return (char *)ptr;
+
+ /* We didn't find anything. */
+ return NULL;
+}
+
+
+/* Glob-expand LINE. The returned pointer is
+ only good until the next call to string_glob. */
+
+static char *
+string_glob (char *line)
+{
+ static char *result = 0;
+ static unsigned int length;
+ struct nameseq *chain;
+ unsigned int idx;
+
+ chain = PARSE_FILE_SEQ (&line, struct nameseq, MAP_NUL, NULL,
+ /* We do not want parse_file_seq to strip './'s.
+ That would break examples like:
+ $(patsubst ./%.c,obj/%.o,$(wildcard ./?*.c)). */
+ PARSEFS_NOSTRIP|PARSEFS_NOCACHE|PARSEFS_EXISTS);
+
+ if (result == 0)
+ {
+ length = 100;
+ result = xmalloc (100);
+ }
+
+ idx = 0;
+ while (chain != 0)
+ {
+ struct nameseq *next = chain->next;
+ unsigned int len = strlen (chain->name);
+
+ if (idx + len + 1 > length)
+ {
+ length += (len + 1) * 2;
+ result = xrealloc (result, length);
+ }
+ memcpy (&result[idx], chain->name, len);
+ idx += len;
+ result[idx++] = ' ';
+
+ /* Because we used PARSEFS_NOCACHE above, we have to free() NAME. */
+ free ((char *)chain->name);
+ free (chain);
+ chain = next;
+ }
+
+ /* Kill the last space and terminate the string. */
+ if (idx == 0)
+ result[0] = '\0';
+ else
+ result[idx - 1] = '\0';
+
+ return result;
+}
+
+/*
+ Builtin functions
+ */
+
+static char *
+func_patsubst (char *o, char **argv, const char *funcname UNUSED)
+{
+ o = patsubst_expand (o, argv[2], argv[0], argv[1]);
+ return o;
+}
+
+
+static char *
+func_join (char *o, char **argv, const char *funcname UNUSED)
+{
+ int doneany = 0;
+
+ /* Write each word of the first argument directly followed
+ by the corresponding word of the second argument.
+ If the two arguments have a different number of words,
+ the excess words are just output separated by blanks. */
+ const char *tp;
+ const char *pp;
+ const char *list1_iterator = argv[0];
+ const char *list2_iterator = argv[1];
+ do
+ {
+ unsigned int len1, len2;
+
+ tp = find_next_token (&list1_iterator, &len1);
+ if (tp != 0)
+ o = variable_buffer_output (o, tp, len1);
+
+ pp = find_next_token (&list2_iterator, &len2);
+ if (pp != 0)
+ o = variable_buffer_output (o, pp, len2);
+
+ if (tp != 0 || pp != 0)
+ {
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+ }
+ while (tp != 0 || pp != 0);
+ if (doneany)
+ /* Kill the last blank. */
+ --o;
+
+ return o;
+}
+
+
+static char *
+func_origin (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* Expand the argument. */
+ struct variable *v = lookup_variable (argv[0], strlen (argv[0]));
+ if (v == 0)
+ o = variable_buffer_output (o, "undefined", 9);
+ else
+ switch (v->origin)
+ {
+ default:
+ case o_invalid:
+ abort ();
+ break;
+ case o_default:
+ o = variable_buffer_output (o, "default", 7);
+ break;
+ case o_env:
+ o = variable_buffer_output (o, "environment", 11);
+ break;
+ case o_file:
+ o = variable_buffer_output (o, "file", 4);
+ break;
+ case o_env_override:
+ o = variable_buffer_output (o, "environment override", 20);
+ break;
+ case o_command:
+ o = variable_buffer_output (o, "command line", 12);
+ break;
+ case o_override:
+ o = variable_buffer_output (o, "override", 8);
+ break;
+ case o_automatic:
+ o = variable_buffer_output (o, "automatic", 9);
+ break;
+ }
+
+ return o;
+}
+
+static char *
+func_flavor (char *o, char **argv, const char *funcname UNUSED)
+{
+ struct variable *v = lookup_variable (argv[0], strlen (argv[0]));
+
+ if (v == 0)
+ o = variable_buffer_output (o, "undefined", 9);
+ else
+ if (v->recursive)
+ o = variable_buffer_output (o, "recursive", 9);
+ else
+ o = variable_buffer_output (o, "simple", 6);
+
+ return o;
+}
+
+
+static char *
+func_notdir_suffix (char *o, char **argv, const char *funcname)
+{
+ /* Expand the argument. */
+ const char *list_iterator = argv[0];
+ const char *p2;
+ int doneany =0;
+ unsigned int len=0;
+
+ int is_suffix = funcname[0] == 's';
+ int is_notdir = !is_suffix;
+ int stop = MAP_DIRSEP | (is_suffix ? MAP_DOT : 0);
+#ifdef VMS
+ /* For VMS list_iterator points to a comma separated list. To use the common
+ [find_]next_token, create a local copy and replace the commas with
+ spaces. Obviously, there is a problem if there is a ',' in the VMS filename
+ (can only happen on ODS5), the same problem as with spaces in filenames,
+ which seems to be present in make on all platforms. */
+ char *vms_list_iterator = alloca(strlen(list_iterator) + 1);
+ int i;
+ for (i = 0; list_iterator[i]; i++)
+ if (list_iterator[i] == ',')
+ vms_list_iterator[i] = ' ';
+ else
+ vms_list_iterator[i] = list_iterator[i];
+ vms_list_iterator[i] = list_iterator[i];
+ while ((p2 = find_next_token((const char**) &vms_list_iterator, &len)) != 0)
+#else
+ while ((p2 = find_next_token (&list_iterator, &len)) != 0)
+#endif
+ {
+ const char *p = p2 + len - 1;
+
+ while (p >= p2 && ! STOP_SET (*p, stop))
+ --p;
+
+ if (p >= p2)
+ {
+ if (is_notdir)
+ ++p;
+ else if (*p != '.')
+ continue;
+ o = variable_buffer_output (o, p, len - (p - p2));
+ }
+#ifdef HAVE_DOS_PATHS
+ /* Handle the case of "d:foo/bar". */
+ else if (is_notdir && p2[0] && p2[1] == ':')
+ {
+ p = p2 + 2;
+ o = variable_buffer_output (o, p, len - (p - p2));
+ }
+#endif
+ else if (is_notdir)
+ o = variable_buffer_output (o, p2, len);
+
+ if (is_notdir || p >= p2)
+ {
+#ifdef VMS
+ if (vms_comma_separator)
+ o = variable_buffer_output (o, ",", 1);
+ else
+#endif
+ o = variable_buffer_output (o, " ", 1);
+
+ doneany = 1;
+ }
+ }
+
+ if (doneany)
+ /* Kill last space. */
+ --o;
+
+ return o;
+}
+
+
+static char *
+func_basename_dir (char *o, char **argv, const char *funcname)
+{
+ /* Expand the argument. */
+ const char *p3 = argv[0];
+ const char *p2;
+ int doneany = 0;
+ unsigned int len = 0;
+
+ int is_basename = funcname[0] == 'b';
+ int is_dir = !is_basename;
+ int stop = MAP_DIRSEP | (is_basename ? MAP_DOT : 0) | MAP_NUL;
+#ifdef VMS
+ /* As in func_notdir_suffix ... */
+ char *vms_p3 = alloca (strlen(p3) + 1);
+ int i;
+ for (i = 0; p3[i]; i++)
+ if (p3[i] == ',')
+ vms_p3[i] = ' ';
+ else
+ vms_p3[i] = p3[i];
+ vms_p3[i] = p3[i];
+ while ((p2 = find_next_token((const char**) &vms_p3, &len)) != 0)
+#else
+ while ((p2 = find_next_token (&p3, &len)) != 0)
+#endif
+ {
+ const char *p = p2 + len - 1;
+ while (p >= p2 && ! STOP_SET (*p, stop))
+ --p;
+
+ if (p >= p2 && (is_dir))
+ o = variable_buffer_output (o, p2, ++p - p2);
+ else if (p >= p2 && (*p == '.'))
+ o = variable_buffer_output (o, p2, p - p2);
+#ifdef HAVE_DOS_PATHS
+ /* Handle the "d:foobar" case */
+ else if (p2[0] && p2[1] == ':' && is_dir)
+ o = variable_buffer_output (o, p2, 2);
+#endif
+ else if (is_dir)
+#ifdef VMS
+ {
+ extern int vms_report_unix_paths;
+ if (vms_report_unix_paths)
+ o = variable_buffer_output (o, "./", 2);
+ else
+ o = variable_buffer_output (o, "[]", 2);
+ }
+#else
+#ifndef _AMIGA
+ o = variable_buffer_output (o, "./", 2);
+#else
+ ; /* Just a nop... */
+#endif /* AMIGA */
+#endif /* !VMS */
+ else
+ /* The entire name is the basename. */
+ o = variable_buffer_output (o, p2, len);
+
+#ifdef VMS
+ if (vms_comma_separator)
+ o = variable_buffer_output (o, ",", 1);
+ else
+#endif
+ o = variable_buffer_output (o, " ", 1);
+
+ doneany = 1;
+ }
+
+ if (doneany)
+ /* Kill last space. */
+ --o;
+
+ return o;
+}
+
+static char *
+func_addsuffix_addprefix (char *o, char **argv, const char *funcname)
+{
+ int fixlen = strlen (argv[0]);
+ const char *list_iterator = argv[1];
+ int is_addprefix = funcname[3] == 'p';
+ int is_addsuffix = !is_addprefix;
+
+ int doneany = 0;
+ const char *p;
+ unsigned int len;
+
+ while ((p = find_next_token (&list_iterator, &len)) != 0)
+ {
+ if (is_addprefix)
+ o = variable_buffer_output (o, argv[0], fixlen);
+ o = variable_buffer_output (o, p, len);
+ if (is_addsuffix)
+ o = variable_buffer_output (o, argv[0], fixlen);
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+
+ if (doneany)
+ /* Kill last space. */
+ --o;
+
+ return o;
+}
+
+static char *
+func_subst (char *o, char **argv, const char *funcname UNUSED)
+{
+ o = subst_expand (o, argv[2], argv[0], argv[1], strlen (argv[0]),
+ strlen (argv[1]), 0);
+
+ return o;
+}
+
+
+static char *
+func_firstword (char *o, char **argv, const char *funcname UNUSED)
+{
+ unsigned int i;
+ const char *words = argv[0]; /* Use a temp variable for find_next_token */
+ const char *p = find_next_token (&words, &i);
+
+ if (p != 0)
+ o = variable_buffer_output (o, p, i);
+
+ return o;
+}
+
+static char *
+func_lastword (char *o, char **argv, const char *funcname UNUSED)
+{
+ unsigned int i;
+ const char *words = argv[0]; /* Use a temp variable for find_next_token */
+ const char *p = NULL;
+ const char *t;
+
+ while ((t = find_next_token (&words, &i)))
+ p = t;
+
+ if (p != 0)
+ o = variable_buffer_output (o, p, i);
+
+ return o;
+}
+
+static char *
+func_words (char *o, char **argv, const char *funcname UNUSED)
+{
+ int i = 0;
+ const char *word_iterator = argv[0];
+ char buf[20];
+
+ while (find_next_token (&word_iterator, NULL) != 0)
+ ++i;
+
+ sprintf (buf, "%d", i);
+ o = variable_buffer_output (o, buf, strlen (buf));
+
+ return o;
+}
+
+/* Set begpp to point to the first non-whitespace character of the string,
+ * and endpp to point to the last non-whitespace character of the string.
+ * If the string is empty or contains nothing but whitespace, endpp will be
+ * begpp-1.
+ */
+char *
+strip_whitespace (const char **begpp, const char **endpp)
+{
+ while (*begpp <= *endpp && ISSPACE (**begpp))
+ (*begpp) ++;
+ while (*endpp >= *begpp && ISSPACE (**endpp))
+ (*endpp) --;
+ return (char *)*begpp;
+}
+
+static void
+check_numeric (const char *s, const char *msg)
+{
+ const char *end = s + strlen (s) - 1;
+ const char *beg = s;
+ strip_whitespace (&s, &end);
+
+ for (; s <= end; ++s)
+ if (!ISDIGIT (*s)) /* ISDIGIT only evals its arg once: see makeint.h. */
+ break;
+
+ if (s <= end || end - beg < 0)
+ OSS (fatal, *expanding_var, "%s: '%s'", msg, beg);
+}
+
+
+
+static char *
+func_word (char *o, char **argv, const char *funcname UNUSED)
+{
+ const char *end_p;
+ const char *p;
+ int i;
+
+ /* Check the first argument. */
+ check_numeric (argv[0], _("non-numeric first argument to 'word' function"));
+ i = atoi (argv[0]);
+
+ if (i == 0)
+ O (fatal, *expanding_var,
+ _("first argument to 'word' function must be greater than 0"));
+
+ end_p = argv[1];
+ while ((p = find_next_token (&end_p, 0)) != 0)
+ if (--i == 0)
+ break;
+
+ if (i == 0)
+ o = variable_buffer_output (o, p, end_p - p);
+
+ return o;
+}
+
+static char *
+func_wordlist (char *o, char **argv, const char *funcname UNUSED)
+{
+ int start, count;
+
+ /* Check the arguments. */
+ check_numeric (argv[0],
+ _("non-numeric first argument to 'wordlist' function"));
+ check_numeric (argv[1],
+ _("non-numeric second argument to 'wordlist' function"));
+
+ start = atoi (argv[0]);
+ if (start < 1)
+ ON (fatal, *expanding_var,
+ "invalid first argument to 'wordlist' function: '%d'", start);
+
+ count = atoi (argv[1]) - start + 1;
+
+ if (count > 0)
+ {
+ const char *p;
+ const char *end_p = argv[2];
+
+ /* Find the beginning of the "start"th word. */
+ while (((p = find_next_token (&end_p, 0)) != 0) && --start)
+ ;
+
+ if (p)
+ {
+ /* Find the end of the "count"th word from start. */
+ while (--count && (find_next_token (&end_p, 0) != 0))
+ ;
+
+ /* Return the stuff in the middle. */
+ o = variable_buffer_output (o, p, end_p - p);
+ }
+ }
+
+ return o;
+}
+
+static char *
+func_findstring (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* Find the first occurrence of the first string in the second. */
+ if (strstr (argv[1], argv[0]) != 0)
+ o = variable_buffer_output (o, argv[0], strlen (argv[0]));
+
+ return o;
+}
+
+static char *
+func_foreach (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* expand only the first two. */
+ char *varname = expand_argument (argv[0], NULL);
+ char *list = expand_argument (argv[1], NULL);
+ const char *body = argv[2];
+
+ int doneany = 0;
+ const char *list_iterator = list;
+ const char *p;
+ unsigned int len;
+ struct variable *var;
+
+ /* Clean up the variable name by removing whitespace. */
+ char *vp = next_token (varname);
+ end_of_token (vp)[0] = '\0';
+
+ push_new_variable_scope ();
+ var = define_variable (vp, strlen (vp), "", o_automatic, 0);
+
+ /* loop through LIST, put the value in VAR and expand BODY */
+ while ((p = find_next_token (&list_iterator, &len)) != 0)
+ {
+ char *result = 0;
+
+ free (var->value);
+ var->value = xstrndup (p, len);
+
+ result = allocated_variable_expand (body);
+
+ o = variable_buffer_output (o, result, strlen (result));
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ free (result);
+ }
+
+ if (doneany)
+ /* Kill the last space. */
+ --o;
+
+ pop_variable_scope ();
+ free (varname);
+ free (list);
+
+ return o;
+}
+
+struct a_word
+{
+ struct a_word *next;
+ struct a_word *chain;
+ char *str;
+ int length;
+ int matched;
+};
+
+static unsigned long
+a_word_hash_1 (const void *key)
+{
+ return_STRING_HASH_1 (((struct a_word const *) key)->str);
+}
+
+static unsigned long
+a_word_hash_2 (const void *key)
+{
+ return_STRING_HASH_2 (((struct a_word const *) key)->str);
+}
+
+static int
+a_word_hash_cmp (const void *x, const void *y)
+{
+ int result = ((struct a_word const *) x)->length - ((struct a_word const *) y)->length;
+ if (result)
+ return result;
+ return_STRING_COMPARE (((struct a_word const *) x)->str,
+ ((struct a_word const *) y)->str);
+}
+
+struct a_pattern
+{
+ struct a_pattern *next;
+ char *str;
+ char *percent;
+ int length;
+};
+
+static char *
+func_filter_filterout (char *o, char **argv, const char *funcname)
+{
+ struct a_word *wordhead;
+ struct a_word **wordtail;
+ struct a_word *wp;
+ struct a_pattern *pathead;
+ struct a_pattern **pattail;
+ struct a_pattern *pp;
+
+ struct hash_table a_word_table;
+ int is_filter = funcname[CSTRLEN ("filter")] == '\0';
+ const char *pat_iterator = argv[0];
+ const char *word_iterator = argv[1];
+ int literals = 0;
+ int words = 0;
+ int hashing = 0;
+ char *p;
+ unsigned int len;
+
+ /* Chop ARGV[0] up into patterns to match against the words.
+ We don't need to preserve it because our caller frees all the
+ argument memory anyway. */
+
+ pattail = &pathead;
+ while ((p = find_next_token (&pat_iterator, &len)) != 0)
+ {
+ struct a_pattern *pat = alloca (sizeof (struct a_pattern));
+
+ *pattail = pat;
+ pattail = &pat->next;
+
+ if (*pat_iterator != '\0')
+ ++pat_iterator;
+
+ pat->str = p;
+ p[len] = '\0';
+ pat->percent = find_percent (p);
+ if (pat->percent == 0)
+ literals++;
+
+ /* find_percent() might shorten the string so LEN is wrong. */
+ pat->length = strlen (pat->str);
+ }
+ *pattail = 0;
+
+ /* Chop ARGV[1] up into words to match against the patterns. */
+
+ wordtail = &wordhead;
+ while ((p = find_next_token (&word_iterator, &len)) != 0)
+ {
+ struct a_word *word = alloca (sizeof (struct a_word));
+
+ *wordtail = word;
+ wordtail = &word->next;
+
+ if (*word_iterator != '\0')
+ ++word_iterator;
+
+ p[len] = '\0';
+ word->str = p;
+ word->length = len;
+ word->matched = 0;
+ word->chain = 0;
+ words++;
+ }
+ *wordtail = 0;
+
+ /* Only use a hash table if arg list lengths justifies the cost. */
+ hashing = (literals >= 2 && (literals * words) >= 10);
+ if (hashing)
+ {
+ hash_init (&a_word_table, words, a_word_hash_1, a_word_hash_2,
+ a_word_hash_cmp);
+ for (wp = wordhead; wp != 0; wp = wp->next)
+ {
+ struct a_word *owp = hash_insert (&a_word_table, wp);
+ if (owp)
+ wp->chain = owp;
+ }
+ }
+
+ if (words)
+ {
+ int doneany = 0;
+
+ /* Run each pattern through the words, killing words. */
+ for (pp = pathead; pp != 0; pp = pp->next)
+ {
+ if (pp->percent)
+ for (wp = wordhead; wp != 0; wp = wp->next)
+ wp->matched |= pattern_matches (pp->str, pp->percent, wp->str);
+ else if (hashing)
+ {
+ struct a_word a_word_key;
+ a_word_key.str = pp->str;
+ a_word_key.length = pp->length;
+ wp = hash_find_item (&a_word_table, &a_word_key);
+ while (wp)
+ {
+ wp->matched |= 1;
+ wp = wp->chain;
+ }
+ }
+ else
+ for (wp = wordhead; wp != 0; wp = wp->next)
+ wp->matched |= (wp->length == pp->length
+ && strneq (pp->str, wp->str, wp->length));
+ }
+
+ /* Output the words that matched (or didn't, for filter-out). */
+ for (wp = wordhead; wp != 0; wp = wp->next)
+ if (is_filter ? wp->matched : !wp->matched)
+ {
+ o = variable_buffer_output (o, wp->str, strlen (wp->str));
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+
+ if (doneany)
+ /* Kill the last space. */
+ --o;
+ }
+
+ if (hashing)
+ hash_free (&a_word_table, 0);
+
+ return o;
+}
+
+
+static char *
+func_strip (char *o, char **argv, const char *funcname UNUSED)
+{
+ const char *p = argv[0];
+ int doneany = 0;
+
+ while (*p != '\0')
+ {
+ int i=0;
+ const char *word_start;
+
+ NEXT_TOKEN (p);
+ word_start = p;
+ for (i=0; *p != '\0' && !ISSPACE (*p); ++p, ++i)
+ {}
+ if (!i)
+ break;
+ o = variable_buffer_output (o, word_start, i);
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+
+ if (doneany)
+ /* Kill the last space. */
+ --o;
+
+ return o;
+}
+
+/*
+ Print a warning or fatal message.
+*/
+static char *
+func_error (char *o, char **argv, const char *funcname)
+{
+ char **argvp;
+ char *msg, *p;
+ int len;
+
+ /* The arguments will be broken on commas. Rather than create yet
+ another special case where function arguments aren't broken up,
+ just create a format string that puts them back together. */
+ for (len=0, argvp=argv; *argvp != 0; ++argvp)
+ len += strlen (*argvp) + 2;
+
+ p = msg = alloca (len + 1);
+
+ for (argvp=argv; argvp[1] != 0; ++argvp)
+ {
+ strcpy (p, *argvp);
+ p += strlen (*argvp);
+ *(p++) = ',';
+ *(p++) = ' ';
+ }
+ strcpy (p, *argvp);
+
+ switch (*funcname)
+ {
+ case 'e':
+ OS (fatal, reading_file, "%s", msg);
+
+ case 'w':
+ OS (error, reading_file, "%s", msg);
+ break;
+
+ case 'i':
+ outputs (0, msg);
+ outputs (0, "\n");
+ break;
+
+ default:
+ OS (fatal, *expanding_var, "Internal error: func_error: '%s'", funcname);
+ }
+
+ /* The warning function expands to the empty string. */
+ return o;
+}
+
+
+/*
+ chop argv[0] into words, and sort them.
+ */
+static char *
+func_sort (char *o, char **argv, const char *funcname UNUSED)
+{
+ const char *t;
+ char **words;
+ int wordi;
+ char *p;
+ unsigned int len;
+
+ /* Find the maximum number of words we'll have. */
+ t = argv[0];
+ wordi = 0;
+ while ((p = find_next_token (&t, NULL)) != 0)
+ {
+ ++t;
+ ++wordi;
+ }
+
+ words = xmalloc ((wordi == 0 ? 1 : wordi) * sizeof (char *));
+
+ /* Now assign pointers to each string in the array. */
+ t = argv[0];
+ wordi = 0;
+ while ((p = find_next_token (&t, &len)) != 0)
+ {
+ ++t;
+ p[len] = '\0';
+ words[wordi++] = p;
+ }
+
+ if (wordi)
+ {
+ int i;
+
+ /* Now sort the list of words. */
+ qsort (words, wordi, sizeof (char *), alpha_compare);
+
+ /* Now write the sorted list, uniquified. */
+ for (i = 0; i < wordi; ++i)
+ {
+ len = strlen (words[i]);
+ if (i == wordi - 1 || strlen (words[i + 1]) != len
+ || strcmp (words[i], words[i + 1]))
+ {
+ o = variable_buffer_output (o, words[i], len);
+ o = variable_buffer_output (o, " ", 1);
+ }
+ }
+
+ /* Kill the last space. */
+ --o;
+ }
+
+ free (words);
+
+ return o;
+}
+
+/*
+ $(if condition,true-part[,false-part])
+
+ CONDITION is false iff it evaluates to an empty string. White
+ space before and after condition are stripped before evaluation.
+
+ If CONDITION is true, then TRUE-PART is evaluated, otherwise FALSE-PART is
+ evaluated (if it exists). Because only one of the two PARTs is evaluated,
+ you can use $(if ...) to create side-effects (with $(shell ...), for
+ example).
+*/
+
+static char *
+func_if (char *o, char **argv, const char *funcname UNUSED)
+{
+ const char *begp = argv[0];
+ const char *endp = begp + strlen (argv[0]) - 1;
+ int result = 0;
+
+ /* Find the result of the condition: if we have a value, and it's not
+ empty, the condition is true. If we don't have a value, or it's the
+ empty string, then it's false. */
+
+ strip_whitespace (&begp, &endp);
+
+ if (begp <= endp)
+ {
+ char *expansion = expand_argument (begp, endp+1);
+
+ result = strlen (expansion);
+ free (expansion);
+ }
+
+ /* If the result is true (1) we want to eval the first argument, and if
+ it's false (0) we want to eval the second. If the argument doesn't
+ exist we do nothing, otherwise expand it and add to the buffer. */
+
+ argv += 1 + !result;
+
+ if (*argv)
+ {
+ char *expansion = expand_argument (*argv, NULL);
+
+ o = variable_buffer_output (o, expansion, strlen (expansion));
+
+ free (expansion);
+ }
+
+ return o;
+}
+
+/*
+ $(or condition1[,condition2[,condition3[...]]])
+
+ A CONDITION is false iff it evaluates to an empty string. White
+ space before and after CONDITION are stripped before evaluation.
+
+ CONDITION1 is evaluated. If it's true, then this is the result of
+ expansion. If it's false, CONDITION2 is evaluated, and so on. If none of
+ the conditions are true, the expansion is the empty string.
+
+ Once a CONDITION is true no further conditions are evaluated
+ (short-circuiting).
+*/
+
+static char *
+func_or (char *o, char **argv, const char *funcname UNUSED)
+{
+ for ( ; *argv ; ++argv)
+ {
+ const char *begp = *argv;
+ const char *endp = begp + strlen (*argv) - 1;
+ char *expansion;
+ int result = 0;
+
+ /* Find the result of the condition: if it's false keep going. */
+
+ strip_whitespace (&begp, &endp);
+
+ if (begp > endp)
+ continue;
+
+ expansion = expand_argument (begp, endp+1);
+ result = strlen (expansion);
+
+ /* If the result is false keep going. */
+ if (!result)
+ {
+ free (expansion);
+ continue;
+ }
+
+ /* It's true! Keep this result and return. */
+ o = variable_buffer_output (o, expansion, result);
+ free (expansion);
+ break;
+ }
+
+ return o;
+}
+
+/*
+ $(and condition1[,condition2[,condition3[...]]])
+
+ A CONDITION is false iff it evaluates to an empty string. White
+ space before and after CONDITION are stripped before evaluation.
+
+ CONDITION1 is evaluated. If it's false, then this is the result of
+ expansion. If it's true, CONDITION2 is evaluated, and so on. If all of
+ the conditions are true, the expansion is the result of the last condition.
+
+ Once a CONDITION is false no further conditions are evaluated
+ (short-circuiting).
+*/
+
+static char *
+func_and (char *o, char **argv, const char *funcname UNUSED)
+{
+ char *expansion;
+
+ while (1)
+ {
+ const char *begp = *argv;
+ const char *endp = begp + strlen (*argv) - 1;
+ int result;
+
+ /* An empty condition is always false. */
+ strip_whitespace (&begp, &endp);
+ if (begp > endp)
+ return o;
+
+ expansion = expand_argument (begp, endp+1);
+ result = strlen (expansion);
+
+ /* If the result is false, stop here: we're done. */
+ if (!result)
+ break;
+
+ /* Otherwise the result is true. If this is the last one, keep this
+ result and quit. Otherwise go on to the next one! */
+
+ if (*(++argv))
+ free (expansion);
+ else
+ {
+ o = variable_buffer_output (o, expansion, result);
+ break;
+ }
+ }
+
+ free (expansion);
+
+ return o;
+}
+
+static char *
+func_wildcard (char *o, char **argv, const char *funcname UNUSED)
+{
+#ifdef _AMIGA
+ o = wildcard_expansion (argv[0], o);
+#else
+ char *p = string_glob (argv[0]);
+ o = variable_buffer_output (o, p, strlen (p));
+#endif
+ return o;
+}
+
+/*
+ $(eval <makefile string>)
+
+ Always resolves to the empty string.
+
+ Treat the arguments as a segment of makefile, and parse them.
+*/
+
+static char *
+func_eval (char *o, char **argv, const char *funcname UNUSED)
+{
+ char *buf;
+ unsigned int len;
+
+ /* Eval the buffer. Pop the current variable buffer setting so that the
+ eval'd code can use its own without conflicting. */
+
+ install_variable_buffer (&buf, &len);
+
+ eval_buffer (argv[0], NULL);
+
+ restore_variable_buffer (buf, len);
+
+ return o;
+}
+
+
+static char *
+func_value (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* Look up the variable. */
+ struct variable *v = lookup_variable (argv[0], strlen (argv[0]));
+
+ /* Copy its value into the output buffer without expanding it. */
+ if (v)
+ o = variable_buffer_output (o, v->value, strlen (v->value));
+
+ return o;
+}
+
+/*
+ \r is replaced on UNIX as well. Is this desirable?
+ */
+static void
+fold_newlines (char *buffer, unsigned int *length, int trim_newlines)
+{
+ char *dst = buffer;
+ char *src = buffer;
+ char *last_nonnl = buffer - 1;
+ src[*length] = 0;
+ for (; *src != '\0'; ++src)
+ {
+ if (src[0] == '\r' && src[1] == '\n')
+ continue;
+ if (*src == '\n')
+ {
+ *dst++ = ' ';
+ }
+ else
+ {
+ last_nonnl = dst;
+ *dst++ = *src;
+ }
+ }
+
+ if (!trim_newlines && (last_nonnl < (dst - 2)))
+ last_nonnl = dst - 2;
+
+ *(++last_nonnl) = '\0';
+ *length = last_nonnl - buffer;
+}
+
+pid_t shell_function_pid = 0;
+static int shell_function_completed;
+
+void
+shell_completed (int exit_code, int exit_sig)
+{
+ char buf[256];
+
+ shell_function_pid = 0;
+ if (exit_sig == 0 && exit_code == 127)
+ shell_function_completed = -1;
+ else
+ shell_function_completed = 1;
+
+ sprintf (buf, "%d", exit_code);
+ define_variable_cname (".SHELLSTATUS", buf, o_override, 0);
+}
+
+#ifdef WINDOWS32
+/*untested*/
+
+#include <windows.h>
+#include <io.h>
+#include "sub_proc.h"
+
+
+int
+windows32_openpipe (int *pipedes, int errfd, pid_t *pid_p, char **command_argv, char **envp)
+{
+ SECURITY_ATTRIBUTES saAttr;
+ HANDLE hIn = INVALID_HANDLE_VALUE;
+ HANDLE hErr = INVALID_HANDLE_VALUE;
+ HANDLE hChildOutRd;
+ HANDLE hChildOutWr;
+ HANDLE hProcess, tmpIn, tmpErr;
+ DWORD e;
+
+ /* Set status for return. */
+ pipedes[0] = pipedes[1] = -1;
+ *pid_p = (pid_t)-1;
+
+ saAttr.nLength = sizeof (SECURITY_ATTRIBUTES);
+ saAttr.bInheritHandle = TRUE;
+ saAttr.lpSecurityDescriptor = NULL;
+
+ /* Standard handles returned by GetStdHandle can be NULL or
+ INVALID_HANDLE_VALUE if the parent process closed them. If that
+ happens, we open the null device and pass its handle to
+ process_begin below as the corresponding handle to inherit. */
+ tmpIn = GetStdHandle (STD_INPUT_HANDLE);
+ if (DuplicateHandle (GetCurrentProcess (), tmpIn,
+ GetCurrentProcess (), &hIn,
+ 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE)
+ {
+ e = GetLastError ();
+ if (e == ERROR_INVALID_HANDLE)
+ {
+ tmpIn = CreateFile ("NUL", GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpIn != INVALID_HANDLE_VALUE
+ && DuplicateHandle (GetCurrentProcess (), tmpIn,
+ GetCurrentProcess (), &hIn,
+ 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle (tmpIn);
+ }
+ if (hIn == INVALID_HANDLE_VALUE)
+ {
+ ON (error, NILF,
+ _("windows32_openpipe: DuplicateHandle(In) failed (e=%ld)\n"), e);
+ return -1;
+ }
+ }
+ tmpErr = (HANDLE)_get_osfhandle (errfd);
+ if (DuplicateHandle (GetCurrentProcess (), tmpErr,
+ GetCurrentProcess (), &hErr,
+ 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE)
+ {
+ e = GetLastError ();
+ if (e == ERROR_INVALID_HANDLE)
+ {
+ tmpErr = CreateFile ("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpErr != INVALID_HANDLE_VALUE
+ && DuplicateHandle (GetCurrentProcess (), tmpErr,
+ GetCurrentProcess (), &hErr,
+ 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle (tmpErr);
+ }
+ if (hErr == INVALID_HANDLE_VALUE)
+ {
+ ON (error, NILF,
+ _("windows32_openpipe: DuplicateHandle(Err) failed (e=%ld)\n"), e);
+ return -1;
+ }
+ }
+
+ if (! CreatePipe (&hChildOutRd, &hChildOutWr, &saAttr, 0))
+ {
+ ON (error, NILF, _("CreatePipe() failed (e=%ld)\n"), GetLastError());
+ return -1;
+ }
+
+ hProcess = process_init_fd (hIn, hChildOutWr, hErr);
+
+ if (!hProcess)
+ {
+ O (error, NILF, _("windows32_openpipe(): process_init_fd() failed\n"));
+ return -1;
+ }
+
+ /* make sure that CreateProcess() has Path it needs */
+ sync_Path_environment ();
+ /* 'sync_Path_environment' may realloc 'environ', so take note of
+ the new value. */
+ envp = environ;
+
+ if (! process_begin (hProcess, command_argv, envp, command_argv[0], NULL))
+ {
+ /* register process for wait */
+ process_register (hProcess);
+
+ /* set the pid for returning to caller */
+ *pid_p = (pid_t) hProcess;
+
+ /* set up to read data from child */
+ pipedes[0] = _open_osfhandle ((intptr_t) hChildOutRd, O_RDONLY);
+
+ /* this will be closed almost right away */
+ pipedes[1] = _open_osfhandle ((intptr_t) hChildOutWr, O_APPEND);
+ return 0;
+ }
+ else
+ {
+ /* reap/cleanup the failed process */
+ process_cleanup (hProcess);
+
+ /* close handles which were duplicated, they weren't used */
+ if (hIn != INVALID_HANDLE_VALUE)
+ CloseHandle (hIn);
+ if (hErr != INVALID_HANDLE_VALUE)
+ CloseHandle (hErr);
+
+ /* close pipe handles, they won't be used */
+ CloseHandle (hChildOutRd);
+ CloseHandle (hChildOutWr);
+
+ return -1;
+ }
+}
+#endif
+
+
+#ifdef __MSDOS__
+FILE *
+msdos_openpipe (int* pipedes, int *pidp, char *text)
+{
+ FILE *fpipe=0;
+ /* MSDOS can't fork, but it has 'popen'. */
+ struct variable *sh = lookup_variable ("SHELL", 5);
+ int e;
+ extern int dos_command_running, dos_status;
+
+ /* Make sure not to bother processing an empty line. */
+ NEXT_TOKEN (text);
+ if (*text == '\0')
+ return 0;
+
+ if (sh)
+ {
+ char buf[PATH_MAX + 7];
+ /* This makes sure $SHELL value is used by $(shell), even
+ though the target environment is not passed to it. */
+ sprintf (buf, "SHELL=%s", sh->value);
+ putenv (buf);
+ }
+
+ e = errno;
+ errno = 0;
+ dos_command_running = 1;
+ dos_status = 0;
+ /* If dos_status becomes non-zero, it means the child process
+ was interrupted by a signal, like SIGINT or SIGQUIT. See
+ fatal_error_signal in commands.c. */
+ fpipe = popen (text, "rt");
+ dos_command_running = 0;
+ if (!fpipe || dos_status)
+ {
+ pipedes[0] = -1;
+ *pidp = -1;
+ if (dos_status)
+ errno = EINTR;
+ else if (errno == 0)
+ errno = ENOMEM;
+ if (fpipe)
+ pclose (fpipe);
+ shell_completed (127, 0);
+ }
+ else
+ {
+ pipedes[0] = fileno (fpipe);
+ *pidp = 42; /* Yes, the Meaning of Life, the Universe, and Everything! */
+ errno = e;
+ }
+ return fpipe;
+}
+#endif
+
+/*
+ Do shell spawning, with the naughty bits for different OSes.
+ */
+
+#ifdef VMS
+
+/* VMS can't do $(shell ...) */
+
+char *
+func_shell_base (char *o, char **argv, int trim_newlines)
+{
+ fprintf (stderr, "This platform does not support shell\n");
+ die (MAKE_TROUBLE);
+ return NULL;
+}
+
+#define func_shell 0
+
+#else
+#ifndef _AMIGA
+char *
+func_shell_base (char *o, char **argv, int trim_newlines)
+{
+ char *batch_filename = NULL;
+ int errfd;
+#ifdef __MSDOS__
+ FILE *fpipe;
+#endif
+ char **command_argv;
+ const char *error_prefix;
+ char **envp;
+ int pipedes[2];
+ pid_t pid;
+
+#ifndef __MSDOS__
+#ifdef WINDOWS32
+ /* Reset just_print_flag. This is needed on Windows when batch files
+ are used to run the commands, because we normally refrain from
+ creating batch files under -n. */
+ int j_p_f = just_print_flag;
+ just_print_flag = 0;
+#endif
+
+ /* Construct the argument list. */
+ command_argv = construct_command_argv (argv[0], NULL, NULL, 0,
+ &batch_filename);
+ if (command_argv == 0)
+ {
+#ifdef WINDOWS32
+ just_print_flag = j_p_f;
+#endif
+ return o;
+ }
+#endif /* !__MSDOS__ */
+
+ /* Using a target environment for 'shell' loses in cases like:
+ export var = $(shell echo foobie)
+ bad := $(var)
+ because target_environment hits a loop trying to expand $(var) to put it
+ in the environment. This is even more confusing when 'var' was not
+ explicitly exported, but just appeared in the calling environment.
+
+ See Savannah bug #10593.
+
+ envp = target_environment (NULL);
+ */
+
+ envp = environ;
+
+ /* For error messages. */
+ if (reading_file && reading_file->filenm)
+ {
+ char *p = alloca (strlen (reading_file->filenm)+11+4);
+ sprintf (p, "%s:%lu: ", reading_file->filenm,
+ reading_file->lineno + reading_file->offset);
+ error_prefix = p;
+ }
+ else
+ error_prefix = "";
+
+ /* Set up the output in case the shell writes something. */
+ output_start ();
+
+ errfd = (output_context && output_context->err >= 0
+ ? output_context->err : FD_STDERR);
+
+#if defined(__MSDOS__)
+ fpipe = msdos_openpipe (pipedes, &pid, argv[0]);
+ if (pipedes[0] < 0)
+ {
+ perror_with_name (error_prefix, "pipe");
+ return o;
+ }
+
+#elif defined(WINDOWS32)
+ windows32_openpipe (pipedes, errfd, &pid, command_argv, envp);
+ /* Restore the value of just_print_flag. */
+ just_print_flag = j_p_f;
+
+ if (pipedes[0] < 0)
+ {
+ /* Open of the pipe failed, mark as failed execution. */
+ shell_completed (127, 0);
+ perror_with_name (error_prefix, "pipe");
+ return o;
+ }
+
+#else
+ if (pipe (pipedes) < 0)
+ {
+ perror_with_name (error_prefix, "pipe");
+ return o;
+ }
+
+ /* Close handles that are unnecessary for the child process. */
+ CLOSE_ON_EXEC(pipedes[1]);
+ CLOSE_ON_EXEC(pipedes[0]);
+
+ {
+ struct output out;
+ out.syncout = 1;
+ out.out = pipedes[1];
+ out.err = errfd;
+
+ pid = child_execute_job (&out, 1, command_argv, envp);
+ }
+
+ if (pid < 0)
+ {
+ perror_with_name (error_prefix, "fork");
+ return o;
+ }
+#endif
+
+ {
+ char *buffer;
+ unsigned int maxlen, i;
+ int cc;
+
+ /* Record the PID for reap_children. */
+ shell_function_pid = pid;
+#ifndef __MSDOS__
+ shell_function_completed = 0;
+
+ /* Free the storage only the child needed. */
+ free (command_argv[0]);
+ free (command_argv);
+
+ /* Close the write side of the pipe. We test for -1, since
+ pipedes[1] is -1 on MS-Windows, and some versions of MS
+ libraries barf when 'close' is called with -1. */
+ if (pipedes[1] >= 0)
+ close (pipedes[1]);
+#endif
+
+ /* Set up and read from the pipe. */
+
+ maxlen = 200;
+ buffer = xmalloc (maxlen + 1);
+
+ /* Read from the pipe until it gets EOF. */
+ for (i = 0; ; i += cc)
+ {
+ if (i == maxlen)
+ {
+ maxlen += 512;
+ buffer = xrealloc (buffer, maxlen + 1);
+ }
+
+ EINTRLOOP (cc, read (pipedes[0], &buffer[i], maxlen - i));
+ if (cc <= 0)
+ break;
+ }
+ buffer[i] = '\0';
+
+ /* Close the read side of the pipe. */
+#ifdef __MSDOS__
+ if (fpipe)
+ {
+ int st = pclose (fpipe);
+ shell_completed (st, 0);
+ }
+#else
+ (void) close (pipedes[0]);
+#endif
+
+ /* Loop until child_handler or reap_children() sets
+ shell_function_completed to the status of our child shell. */
+ while (shell_function_completed == 0)
+ reap_children (1, 0);
+
+ if (batch_filename)
+ {
+ DB (DB_VERBOSE, (_("Cleaning up temporary batch file %s\n"),
+ batch_filename));
+ remove (batch_filename);
+ free (batch_filename);
+ }
+ shell_function_pid = 0;
+
+ /* shell_completed() will set shell_function_completed to 1 when the
+ child dies normally, or to -1 if it dies with status 127, which is
+ most likely an exec fail. */
+
+ if (shell_function_completed == -1)
+ {
+ /* This likely means that the execvp failed, so we should just
+ write the error message in the pipe from the child. */
+ fputs (buffer, stderr);
+ fflush (stderr);
+ }
+ else
+ {
+ /* The child finished normally. Replace all newlines in its output
+ with spaces, and put that in the variable output buffer. */
+ fold_newlines (buffer, &i, trim_newlines);
+ o = variable_buffer_output (o, buffer, i);
+ }
+
+ free (buffer);
+ }
+
+ return o;
+}
+
+#else /* _AMIGA */
+
+/* Do the Amiga version of func_shell. */
+
+char *
+func_shell_base (char *o, char **argv, int trim_newlines)
+{
+ /* Amiga can't fork nor spawn, but I can start a program with
+ redirection of my choice. However, this means that we
+ don't have an opportunity to reopen stdout to trap it. Thus,
+ we save our own stdout onto a new descriptor and dup a temp
+ file's descriptor onto our stdout temporarily. After we
+ spawn the shell program, we dup our own stdout back to the
+ stdout descriptor. The buffer reading is the same as above,
+ except that we're now reading from a file. */
+
+#include <dos/dos.h>
+#include <proto/dos.h>
+
+ BPTR child_stdout;
+ char tmp_output[FILENAME_MAX];
+ unsigned int maxlen = 200, i;
+ int cc;
+ char * buffer, * ptr;
+ char ** aptr;
+ int len = 0;
+ char* batch_filename = NULL;
+
+ /* Construct the argument list. */
+ command_argv = construct_command_argv (argv[0], NULL, NULL, 0,
+ &batch_filename);
+ if (command_argv == 0)
+ return o;
+
+ /* Note the mktemp() is a security hole, but this only runs on Amiga.
+ Ideally we would use output_tmpfile(), but this uses a special
+ Open(), not fopen(), and I'm not familiar enough with the code to mess
+ with it. */
+ strcpy (tmp_output, "t:MakeshXXXXXXXX");
+ mktemp (tmp_output);
+ child_stdout = Open (tmp_output, MODE_NEWFILE);
+
+ for (aptr=command_argv; *aptr; aptr++)
+ len += strlen (*aptr) + 1;
+
+ buffer = xmalloc (len + 1);
+ ptr = buffer;
+
+ for (aptr=command_argv; *aptr; aptr++)
+ {
+ strcpy (ptr, *aptr);
+ ptr += strlen (ptr) + 1;
+ *ptr ++ = ' ';
+ *ptr = 0;
+ }
+
+ ptr[-1] = '\n';
+
+ Execute (buffer, NULL, child_stdout);
+ free (buffer);
+
+ Close (child_stdout);
+
+ child_stdout = Open (tmp_output, MODE_OLDFILE);
+
+ buffer = xmalloc (maxlen);
+ i = 0;
+ do
+ {
+ if (i == maxlen)
+ {
+ maxlen += 512;
+ buffer = xrealloc (buffer, maxlen + 1);
+ }
+
+ cc = Read (child_stdout, &buffer[i], maxlen - i);
+ if (cc > 0)
+ i += cc;
+ } while (cc > 0);
+
+ Close (child_stdout);
+
+ fold_newlines (buffer, &i, trim_newlines);
+ o = variable_buffer_output (o, buffer, i);
+ free (buffer);
+ return o;
+}
+#endif /* _AMIGA */
+
+static char *
+func_shell (char *o, char **argv, const char *funcname UNUSED)
+{
+ return func_shell_base (o, argv, 1);
+}
+#endif /* !VMS */
+
+#ifdef EXPERIMENTAL
+
+/*
+ equality. Return is string-boolean, i.e., the empty string is false.
+ */
+static char *
+func_eq (char *o, char **argv, char *funcname UNUSED)
+{
+ int result = ! strcmp (argv[0], argv[1]);
+ o = variable_buffer_output (o, result ? "1" : "", result);
+ return o;
+}
+
+
+/*
+ string-boolean not operator.
+ */
+static char *
+func_not (char *o, char **argv, char *funcname UNUSED)
+{
+ const char *s = argv[0];
+ int result = 0;
+ NEXT_TOKEN (s);
+ result = ! (*s);
+ o = variable_buffer_output (o, result ? "1" : "", result);
+ return o;
+}
+#endif
+
+
+#ifdef HAVE_DOS_PATHS
+# ifdef __CYGWIN__
+# define IS_ABSOLUTE(n) ((n[0] && n[1] == ':') || STOP_SET (n[0], MAP_DIRSEP))
+# else
+# define IS_ABSOLUTE(n) (n[0] && n[1] == ':')
+# endif
+# define ROOT_LEN 3
+#else
+#define IS_ABSOLUTE(n) (n[0] == '/')
+#define ROOT_LEN 1
+#endif
+
+/* Return the absolute name of file NAME which does not contain any '.',
+ '..' components nor any repeated path separators ('/'). */
+
+static char *
+abspath (const char *name, char *apath)
+{
+ char *dest;
+ const char *start, *end, *apath_limit;
+ unsigned long root_len = ROOT_LEN;
+
+ if (name[0] == '\0' || apath == NULL)
+ return NULL;
+
+ apath_limit = apath + GET_PATH_MAX;
+
+ if (!IS_ABSOLUTE(name))
+ {
+ /* It is unlikely we would make it until here but just to make sure. */
+ if (!starting_directory)
+ return NULL;
+
+ strcpy (apath, starting_directory);
+
+#ifdef HAVE_DOS_PATHS
+ if (STOP_SET (name[0], MAP_DIRSEP))
+ {
+ if (STOP_SET (name[1], MAP_DIRSEP))
+ {
+ /* A UNC. Don't prepend a drive letter. */
+ apath[0] = name[0];
+ apath[1] = name[1];
+ root_len = 2;
+ }
+ /* We have /foo, an absolute file name except for the drive
+ letter. Assume the missing drive letter is the current
+ drive, which we can get if we remove from starting_directory
+ everything past the root directory. */
+ apath[root_len] = '\0';
+ }
+#endif
+
+ dest = strchr (apath, '\0');
+ }
+ else
+ {
+#if defined(__CYGWIN__) && defined(HAVE_DOS_PATHS)
+ if (STOP_SET (name[0], MAP_DIRSEP))
+ root_len = 1;
+#endif
+ strncpy (apath, name, root_len);
+ apath[root_len] = '\0';
+ dest = apath + root_len;
+ /* Get past the root, since we already copied it. */
+ name += root_len;
+#ifdef HAVE_DOS_PATHS
+ if (! STOP_SET (apath[root_len - 1], MAP_DIRSEP))
+ {
+ /* Convert d:foo into d:./foo and increase root_len. */
+ apath[2] = '.';
+ apath[3] = '/';
+ dest++;
+ root_len++;
+ /* strncpy above copied one character too many. */
+ name--;
+ }
+ else
+ apath[root_len - 1] = '/'; /* make sure it's a forward slash */
+#endif
+ }
+
+ for (start = end = name; *start != '\0'; start = end)
+ {
+ unsigned long len;
+
+ /* Skip sequence of multiple path-separators. */
+ while (STOP_SET (*start, MAP_DIRSEP))
+ ++start;
+
+ /* Find end of path component. */
+ for (end = start; ! STOP_SET (*end, MAP_DIRSEP|MAP_NUL); ++end)
+ ;
+
+ len = end - start;
+
+ if (len == 0)
+ break;
+ else if (len == 1 && start[0] == '.')
+ /* nothing */;
+ else if (len == 2 && start[0] == '.' && start[1] == '.')
+ {
+ /* Back up to previous component, ignore if at root already. */
+ if (dest > apath + root_len)
+ for (--dest; ! STOP_SET (dest[-1], MAP_DIRSEP); --dest)
+ ;
+ }
+ else
+ {
+ if (! STOP_SET (dest[-1], MAP_DIRSEP))
+ *dest++ = '/';
+
+ if (dest + len >= apath_limit)
+ return NULL;
+
+ dest = memcpy (dest, start, len);
+ dest += len;
+ *dest = '\0';
+ }
+ }
+
+ /* Unless it is root strip trailing separator. */
+ if (dest > apath + root_len && STOP_SET (dest[-1], MAP_DIRSEP))
+ --dest;
+
+ *dest = '\0';
+
+ return apath;
+}
+
+
+static char *
+func_realpath (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* Expand the argument. */
+ const char *p = argv[0];
+ const char *path = 0;
+ int doneany = 0;
+ unsigned int len = 0;
+
+ while ((path = find_next_token (&p, &len)) != 0)
+ {
+ if (len < GET_PATH_MAX)
+ {
+ char *rp;
+ struct stat st;
+ PATH_VAR (in);
+ PATH_VAR (out);
+
+ strncpy (in, path, len);
+ in[len] = '\0';
+
+#ifdef HAVE_REALPATH
+ ENULLLOOP (rp, realpath (in, out));
+#else
+ rp = abspath (in, out);
+#endif
+
+ if (rp)
+ {
+ int r;
+ EINTRLOOP (r, stat (out, &st));
+ if (r == 0)
+ {
+ o = variable_buffer_output (o, out, strlen (out));
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+ }
+ }
+ }
+
+ /* Kill last space. */
+ if (doneany)
+ --o;
+
+ return o;
+}
+
+static char *
+func_file (char *o, char **argv, const char *funcname UNUSED)
+{
+ char *fn = argv[0];
+
+ if (fn[0] == '>')
+ {
+ FILE *fp;
+ const char *mode = "w";
+
+ /* We are writing a file. */
+ ++fn;
+ if (fn[0] == '>')
+ {
+ mode = "a";
+ ++fn;
+ }
+ NEXT_TOKEN (fn);
+
+ if (fn[0] == '\0')
+ O (fatal, *expanding_var, _("file: missing filename"));
+
+ ENULLLOOP (fp, fopen (fn, mode));
+ if (fp == NULL)
+ OSS (fatal, reading_file, _("open: %s: %s"), fn, strerror (errno));
+
+ if (argv[1])
+ {
+ int l = strlen (argv[1]);
+ int nl = l == 0 || argv[1][l-1] != '\n';
+
+ if (fputs (argv[1], fp) == EOF || (nl && fputc ('\n', fp) == EOF))
+ OSS (fatal, reading_file, _("write: %s: %s"), fn, strerror (errno));
+ }
+ if (fclose (fp))
+ OSS (fatal, reading_file, _("close: %s: %s"), fn, strerror (errno));
+ }
+ else if (fn[0] == '<')
+ {
+ char *preo = o;
+ FILE *fp;
+
+ ++fn;
+ NEXT_TOKEN (fn);
+ if (fn[0] == '\0')
+ O (fatal, *expanding_var, _("file: missing filename"));
+
+ if (argv[1])
+ O (fatal, *expanding_var, _("file: too many arguments"));
+
+ ENULLLOOP (fp, fopen (fn, "r"));
+ if (fp == NULL)
+ {
+ if (errno == ENOENT)
+ return o;
+ OSS (fatal, reading_file, _("open: %s: %s"), fn, strerror (errno));
+ }
+
+ while (1)
+ {
+ char buf[1024];
+ size_t l = fread (buf, 1, sizeof (buf), fp);
+ if (l > 0)
+ o = variable_buffer_output (o, buf, l);
+
+ if (ferror (fp))
+ if (errno != EINTR)
+ OSS (fatal, reading_file, _("read: %s: %s"), fn, strerror (errno));
+ if (feof (fp))
+ break;
+ }
+ if (fclose (fp))
+ OSS (fatal, reading_file, _("close: %s: %s"), fn, strerror (errno));
+
+ /* Remove trailing newline. */
+ if (o > preo && o[-1] == '\n')
+ if (--o > preo && o[-1] == '\r')
+ --o;
+ }
+ else
+ OS (fatal, *expanding_var, _("file: invalid file operation: %s"), fn);
+
+ return o;
+}
+
+static char *
+func_abspath (char *o, char **argv, const char *funcname UNUSED)
+{
+ /* Expand the argument. */
+ const char *p = argv[0];
+ const char *path = 0;
+ int doneany = 0;
+ unsigned int len = 0;
+
+ while ((path = find_next_token (&p, &len)) != 0)
+ {
+ if (len < GET_PATH_MAX)
+ {
+ PATH_VAR (in);
+ PATH_VAR (out);
+
+ strncpy (in, path, len);
+ in[len] = '\0';
+
+ if (abspath (in, out))
+ {
+ o = variable_buffer_output (o, out, strlen (out));
+ o = variable_buffer_output (o, " ", 1);
+ doneany = 1;
+ }
+ }
+ }
+
+ /* Kill last space. */
+ if (doneany)
+ --o;
+
+ return o;
+}
+
+/* Lookup table for builtin functions.
+
+ This doesn't have to be sorted; we use a straight lookup. We might gain
+ some efficiency by moving most often used functions to the start of the
+ table.
+
+ If MAXIMUM_ARGS is 0, that means there is no maximum and all
+ comma-separated values are treated as arguments.
+
+ EXPAND_ARGS means that all arguments should be expanded before invocation.
+ Functions that do namespace tricks (foreach) don't automatically expand. */
+
+static char *func_call (char *o, char **argv, const char *funcname);
+
+#define FT_ENTRY(_name, _min, _max, _exp, _func) \
+ { { (_func) }, STRING_SIZE_TUPLE(_name), (_min), (_max), (_exp), 0 }
+
+static struct function_table_entry function_table_init[] =
+{
+ /* Name MIN MAX EXP? Function */
+ FT_ENTRY ("abspath", 0, 1, 1, func_abspath),
+ FT_ENTRY ("addprefix", 2, 2, 1, func_addsuffix_addprefix),
+ FT_ENTRY ("addsuffix", 2, 2, 1, func_addsuffix_addprefix),
+ FT_ENTRY ("basename", 0, 1, 1, func_basename_dir),
+ FT_ENTRY ("dir", 0, 1, 1, func_basename_dir),
+ FT_ENTRY ("notdir", 0, 1, 1, func_notdir_suffix),
+ FT_ENTRY ("subst", 3, 3, 1, func_subst),
+ FT_ENTRY ("suffix", 0, 1, 1, func_notdir_suffix),
+ FT_ENTRY ("filter", 2, 2, 1, func_filter_filterout),
+ FT_ENTRY ("filter-out", 2, 2, 1, func_filter_filterout),
+ FT_ENTRY ("findstring", 2, 2, 1, func_findstring),
+ FT_ENTRY ("firstword", 0, 1, 1, func_firstword),
+ FT_ENTRY ("flavor", 0, 1, 1, func_flavor),
+ FT_ENTRY ("join", 2, 2, 1, func_join),
+ FT_ENTRY ("lastword", 0, 1, 1, func_lastword),
+ FT_ENTRY ("patsubst", 3, 3, 1, func_patsubst),
+ FT_ENTRY ("realpath", 0, 1, 1, func_realpath),
+ FT_ENTRY ("shell", 0, 1, 1, func_shell),
+ FT_ENTRY ("sort", 0, 1, 1, func_sort),
+ FT_ENTRY ("strip", 0, 1, 1, func_strip),
+ FT_ENTRY ("wildcard", 0, 1, 1, func_wildcard),
+ FT_ENTRY ("word", 2, 2, 1, func_word),
+ FT_ENTRY ("wordlist", 3, 3, 1, func_wordlist),
+ FT_ENTRY ("words", 0, 1, 1, func_words),
+ FT_ENTRY ("origin", 0, 1, 1, func_origin),
+ FT_ENTRY ("foreach", 3, 3, 0, func_foreach),
+ FT_ENTRY ("call", 1, 0, 1, func_call),
+ FT_ENTRY ("info", 0, 1, 1, func_error),
+ FT_ENTRY ("error", 0, 1, 1, func_error),
+ FT_ENTRY ("warning", 0, 1, 1, func_error),
+ FT_ENTRY ("if", 2, 3, 0, func_if),
+ FT_ENTRY ("or", 1, 0, 0, func_or),
+ FT_ENTRY ("and", 1, 0, 0, func_and),
+ FT_ENTRY ("value", 0, 1, 1, func_value),
+ FT_ENTRY ("eval", 0, 1, 1, func_eval),
+ FT_ENTRY ("file", 1, 2, 1, func_file),
+#ifdef EXPERIMENTAL
+ FT_ENTRY ("eq", 2, 2, 1, func_eq),
+ FT_ENTRY ("not", 0, 1, 1, func_not),
+#endif
+};
+
+#define FUNCTION_TABLE_ENTRIES (sizeof (function_table_init) / sizeof (struct function_table_entry))
+
+
+/* These must come after the definition of function_table. */
+
+static char *
+expand_builtin_function (char *o, int argc, char **argv,
+ const struct function_table_entry *entry_p)
+{
+ char *p;
+
+ if (argc < (int)entry_p->minimum_args)
+ fatal (*expanding_var, strlen (entry_p->name),
+ _("insufficient number of arguments (%d) to function '%s'"),
+ argc, entry_p->name);
+
+ /* I suppose technically some function could do something with no arguments,
+ but so far no internal ones do, so just test it for all functions here
+ rather than in each one. We can change it later if necessary. */
+
+ if (!argc && !entry_p->alloc_fn)
+ return o;
+
+ if (!entry_p->fptr.func_ptr)
+ OS (fatal, *expanding_var,
+ _("unimplemented on this platform: function '%s'"), entry_p->name);
+
+ if (!entry_p->alloc_fn)
+ return entry_p->fptr.func_ptr (o, argv, entry_p->name);
+
+ /* This function allocates memory and returns it to us.
+ Write it to the variable buffer, then free it. */
+
+ p = entry_p->fptr.alloc_func_ptr (entry_p->name, argc, argv);
+ if (p)
+ {
+ o = variable_buffer_output (o, p, strlen (p));
+ free (p);
+ }
+
+ return o;
+}
+
+/* Check for a function invocation in *STRINGP. *STRINGP points at the
+ opening ( or { and is not null-terminated. If a function invocation
+ is found, expand it into the buffer at *OP, updating *OP, incrementing
+ *STRINGP past the reference and returning nonzero. If not, return zero. */
+
+int
+handle_function (char **op, const char **stringp)
+{
+ const struct function_table_entry *entry_p;
+ char openparen = (*stringp)[0];
+ char closeparen = openparen == '(' ? ')' : '}';
+ const char *beg;
+ const char *end;
+ int count = 0;
+ char *abeg = NULL;
+ char **argv, **argvp;
+ int nargs;
+
+ beg = *stringp + 1;
+
+ entry_p = lookup_function (beg);
+
+ if (!entry_p)
+ return 0;
+
+ /* We found a builtin function. Find the beginning of its arguments (skip
+ whitespace after the name). */
+
+ beg += entry_p->len;
+ NEXT_TOKEN (beg);
+
+ /* Find the end of the function invocation, counting nested use of
+ whichever kind of parens we use. Since we're looking, count commas
+ to get a rough estimate of how many arguments we might have. The
+ count might be high, but it'll never be low. */
+
+ for (nargs=1, end=beg; *end != '\0'; ++end)
+ if (*end == ',')
+ ++nargs;
+ else if (*end == openparen)
+ ++count;
+ else if (*end == closeparen && --count < 0)
+ break;
+
+ if (count >= 0)
+ fatal (*expanding_var, strlen (entry_p->name),
+ _("unterminated call to function '%s': missing '%c'"),
+ entry_p->name, closeparen);
+
+ *stringp = end;
+
+ /* Get some memory to store the arg pointers. */
+ argvp = argv = alloca (sizeof (char *) * (nargs + 2));
+
+ /* Chop the string into arguments, then a nul. As soon as we hit
+ MAXIMUM_ARGS (if it's >0) assume the rest of the string is part of the
+ last argument.
+
+ If we're expanding, store pointers to the expansion of each one. If
+ not, make a duplicate of the string and point into that, nul-terminating
+ each argument. */
+
+ if (entry_p->expand_args)
+ {
+ const char *p;
+ for (p=beg, nargs=0; p <= end; ++argvp)
+ {
+ const char *next;
+
+ ++nargs;
+
+ if (nargs == entry_p->maximum_args
+ || (! (next = find_next_argument (openparen, closeparen, p, end))))
+ next = end;
+
+ *argvp = expand_argument (p, next);
+ p = next + 1;
+ }
+ }
+ else
+ {
+ int len = end - beg;
+ char *p, *aend;
+
+ abeg = xmalloc (len+1);
+ memcpy (abeg, beg, len);
+ abeg[len] = '\0';
+ aend = abeg + len;
+
+ for (p=abeg, nargs=0; p <= aend; ++argvp)
+ {
+ char *next;
+
+ ++nargs;
+
+ if (nargs == entry_p->maximum_args
+ || (! (next = find_next_argument (openparen, closeparen, p, aend))))
+ next = aend;
+
+ *argvp = p;
+ *next = '\0';
+ p = next + 1;
+ }
+ }
+ *argvp = NULL;
+
+ /* Finally! Run the function... */
+ *op = expand_builtin_function (*op, nargs, argv, entry_p);
+
+ /* Free memory. */
+ if (entry_p->expand_args)
+ for (argvp=argv; *argvp != 0; ++argvp)
+ free (*argvp);
+ else
+ free (abeg);
+
+ return 1;
+}
+
+
+/* User-defined functions. Expand the first argument as either a builtin
+ function or a make variable, in the context of the rest of the arguments
+ assigned to $1, $2, ... $N. $0 is the name of the function. */
+
+static char *
+func_call (char *o, char **argv, const char *funcname UNUSED)
+{
+ static int max_args = 0;
+ char *fname;
+ char *body;
+ int flen;
+ int i;
+ int saved_args;
+ const struct function_table_entry *entry_p;
+ struct variable *v;
+
+ /* Clean up the name of the variable to be invoked. */
+ fname = next_token (argv[0]);
+ end_of_token (fname)[0] = '\0';
+
+ /* Calling nothing is a no-op */
+ if (*fname == '\0')
+ return o;
+
+ /* Are we invoking a builtin function? */
+
+ entry_p = lookup_function (fname);
+ if (entry_p)
+ {
+ /* How many arguments do we have? */
+ for (i=0; argv[i+1]; ++i)
+ ;
+ return expand_builtin_function (o, i, argv+1, entry_p);
+ }
+
+ /* Not a builtin, so the first argument is the name of a variable to be
+ expanded and interpreted as a function. Find it. */
+ flen = strlen (fname);
+
+ v = lookup_variable (fname, flen);
+
+ if (v == 0)
+ warn_undefined (fname, flen);
+
+ if (v == 0 || *v->value == '\0')
+ return o;
+
+ body = alloca (flen + 4);
+ body[0] = '$';
+ body[1] = '(';
+ memcpy (body + 2, fname, flen);
+ body[flen+2] = ')';
+ body[flen+3] = '\0';
+
+ /* Set up arguments $(1) .. $(N). $(0) is the function name. */
+
+ push_new_variable_scope ();
+
+ for (i=0; *argv; ++i, ++argv)
+ {
+ char num[11];
+
+ sprintf (num, "%d", i);
+ define_variable (num, strlen (num), *argv, o_automatic, 0);
+ }
+
+ /* If the number of arguments we have is < max_args, it means we're inside
+ a recursive invocation of $(call ...). Fill in the remaining arguments
+ in the new scope with the empty value, to hide them from this
+ invocation. */
+
+ for (; i < max_args; ++i)
+ {
+ char num[11];
+
+ sprintf (num, "%d", i);
+ define_variable (num, strlen (num), "", o_automatic, 0);
+ }
+
+ /* Expand the body in the context of the arguments, adding the result to
+ the variable buffer. */
+
+ v->exp_count = EXP_COUNT_MAX;
+
+ saved_args = max_args;
+ max_args = i;
+ o = variable_expand_string (o, body, flen+3);
+ max_args = saved_args;
+
+ v->exp_count = 0;
+
+ pop_variable_scope ();
+
+ return o + strlen (o);
+}
+
+void
+define_new_function (const floc *flocp, const char *name,
+ unsigned int min, unsigned int max, unsigned int flags,
+ gmk_func_ptr func)
+{
+ const char *e = name;
+ struct function_table_entry *ent;
+ size_t len;
+
+ while (STOP_SET (*e, MAP_USERFUNC))
+ e++;
+ len = e - name;
+
+ if (len == 0)
+ O (fatal, flocp, _("Empty function name"));
+ if (*name == '.' || *e != '\0')
+ OS (fatal, flocp, _("Invalid function name: %s"), name);
+ if (len > 255)
+ OS (fatal, flocp, _("Function name too long: %s"), name);
+ if (min > 255)
+ ONS (fatal, flocp,
+ _("Invalid minimum argument count (%u) for function %s"), min, name);
+ if (max > 255 || (max && max < min))
+ ONS (fatal, flocp,
+ _("Invalid maximum argument count (%u) for function %s"), max, name);
+
+ ent = xmalloc (sizeof (struct function_table_entry));
+ ent->name = name;
+ ent->len = len;
+ ent->minimum_args = min;
+ ent->maximum_args = max;
+ ent->expand_args = ANY_SET(flags, GMK_FUNC_NOEXPAND) ? 0 : 1;
+ ent->alloc_fn = 1;
+ ent->fptr.alloc_func_ptr = func;
+
+ hash_insert (&function_table, ent);
+}
+
+void
+hash_init_function_table (void)
+{
+ hash_init (&function_table, FUNCTION_TABLE_ENTRIES * 2,
+ function_table_entry_hash_1, function_table_entry_hash_2,
+ function_table_entry_hash_cmp);
+ hash_load (&function_table, function_table_init,
+ FUNCTION_TABLE_ENTRIES, sizeof (struct function_table_entry));
+}
diff --git a/getloadavg.c b/getloadavg.c
new file mode 100644
index 0000000..10ae56a
--- /dev/null
+++ b/getloadavg.c
@@ -0,0 +1,1026 @@
+/* Get the system load averages.
+Copyright (C) 1985-2016 Free Software Foundation, Inc.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Compile-time symbols that this file uses:
+
+ HAVE_PSTAT_GETDYNAMIC Define this if your system has the
+ pstat_getdynamic function. I think it
+ is unique to HPUX9. The best way to get the
+ definition is through the AC_FUNC_GETLOADAVG
+ macro that comes with autoconf 2.13 or newer.
+ If that isn't an option, then just put
+ AC_CHECK_FUNCS(pstat_getdynamic) in your
+ configure.in file.
+ FIXUP_KERNEL_SYMBOL_ADDR() Adjust address in returned struct nlist.
+ KERNEL_FILE Pathname of the kernel to nlist.
+ LDAV_CVT() Scale the load average from the kernel.
+ Returns a double.
+ LDAV_SYMBOL Name of kernel symbol giving load average.
+ LOAD_AVE_TYPE Type of the load average array in the kernel.
+ Must be defined unless one of
+ apollo, DGUX, NeXT, or UMAX is defined;
+ or we have libkstat;
+ otherwise, no load average is available.
+ NLIST_STRUCT Include nlist.h, not a.out.h, and
+ the nlist n_name element is a pointer,
+ not an array.
+ HAVE_STRUCT_NLIST_N_UN_N_NAME struct nlist has an n_un member, not n_name.
+ LINUX_LDAV_FILE [__linux__]: File containing load averages.
+
+ Specific system predefines this file uses, aside from setting
+ default values if not emacs:
+
+ apollo
+ BSD Real BSD, not just BSD-like.
+ convex
+ DGUX
+ eunice UNIX emulator under VMS.
+ hpux
+ __MSDOS__ No-op for MSDOS.
+ NeXT
+ sgi
+ sequent Sequent Dynix 3.x.x (BSD)
+ _SEQUENT_ Sequent DYNIX/ptx 1.x.x (SYSV)
+ sony_news NEWS-OS (works at least for 4.1C)
+ UMAX
+ UMAX4_3
+ VMS
+ WINDOWS32 No-op for Windows95/NT.
+ __linux__ Linux: assumes /proc filesystem mounted.
+ Support from Michael K. Johnson.
+ __NetBSD__ NetBSD: assumes /kern filesystem mounted.
+
+ In addition, to avoid nesting many #ifdefs, we internally set
+ LDAV_DONE to indicate that the load average has been computed.
+
+ We also #define LDAV_PRIVILEGED if a program will require
+ special installation to be able to call getloadavg. */
+
+/* This should always be first. */
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <sys/types.h>
+
+/* Both the Emacs and non-Emacs sections want this. Some
+ configuration files' definitions for the LOAD_AVE_CVT macro (like
+ sparc.h's) use macros like FSCALE, defined here. */
+#if defined (unix) || defined (__unix)
+# include <sys/param.h>
+#endif
+
+
+/* Exclude all the code except the test program at the end
+ if the system has its own 'getloadavg' function.
+
+ The declaration of 'errno' is needed by the test program
+ as well as the function itself, so it comes first. */
+
+#include <errno.h>
+
+#ifndef errno
+extern int errno;
+#endif
+
+#if HAVE_LOCALE_H
+# include <locale.h>
+#endif
+#if !HAVE_SETLOCALE
+# define setlocale(Category, Locale) /* empty */
+#endif
+
+#ifndef HAVE_GETLOADAVG
+
+
+/* The existing Emacs configuration files define a macro called
+ LOAD_AVE_CVT, which accepts a value of type LOAD_AVE_TYPE, and
+ returns the load average multiplied by 100. What we actually want
+ is a macro called LDAV_CVT, which returns the load average as an
+ unmultiplied double.
+
+ For backwards compatibility, we'll define LDAV_CVT in terms of
+ LOAD_AVE_CVT, but future machine config files should just define
+ LDAV_CVT directly. */
+
+# if !defined(LDAV_CVT) && defined(LOAD_AVE_CVT)
+# define LDAV_CVT(n) (LOAD_AVE_CVT (n) / 100.0)
+# endif
+
+# if !defined (BSD) && defined (ultrix)
+/* Ultrix behaves like BSD on Vaxen. */
+# define BSD
+# endif
+
+# ifdef NeXT
+/* NeXT in the 2.{0,1,2} releases defines BSD in <sys/param.h>, which
+ conflicts with the definition understood in this file, that this
+ really is BSD. */
+# undef BSD
+
+/* NeXT defines FSCALE in <sys/param.h>. However, we take FSCALE being
+ defined to mean that the nlist method should be used, which is not true. */
+# undef FSCALE
+# endif
+
+/* Same issues as for NeXT apply to the HURD-based GNU system. */
+# ifdef __GNU__
+# undef BSD
+# undef FSCALE
+# endif /* __GNU__ */
+
+/* Set values that are different from the defaults, which are
+ set a little farther down with #ifndef. */
+
+
+/* Some shorthands. */
+
+# if defined (HPUX) && !defined (hpux)
+# define hpux
+# endif
+
+# if defined (__hpux) && !defined (hpux)
+# define hpux
+# endif
+
+# if defined (__sun) && !defined (sun)
+# define sun
+# endif
+
+# if defined(hp300) && !defined(hpux)
+# define MORE_BSD
+# endif
+
+# if defined(ultrix) && defined(mips)
+# define decstation
+# endif
+
+# if defined (__SVR4) && !defined (SVR4)
+# define SVR4
+# endif
+
+# if (defined(sun) && defined(SVR4)) || defined (SOLARIS2)
+# define SUNOS_5
+# endif
+
+# if defined (__osf__) && (defined (__alpha) || defined (__alpha__))
+# define OSF_ALPHA
+# include <sys/mbuf.h>
+# include <sys/socket.h>
+# include <net/route.h>
+# include <sys/table.h>
+# endif
+
+# if defined (__osf__) && (defined (mips) || defined (__mips__))
+# define OSF_MIPS
+# include <sys/table.h>
+# endif
+
+/* UTek's /bin/cc on the 4300 has no architecture specific cpp define by
+ default, but _MACH_IND_SYS_TYPES is defined in <sys/types.h>. Combine
+ that with a couple of other things and we'll have a unique match. */
+# if !defined (tek4300) && defined (unix) && defined (m68k) && defined (mc68000) && defined (mc68020) && defined (_MACH_IND_SYS_TYPES)
+# define tek4300 /* Define by emacs, but not by other users. */
+# endif
+
+/* AC_FUNC_GETLOADAVG thinks QNX is SVR4, but it isn't. */
+# if defined(__QNX__)
+# undef SVR4
+# endif
+
+/* VAX C can't handle multi-line #ifs, or lines longer than 256 chars. */
+# ifndef LOAD_AVE_TYPE
+
+# ifdef MORE_BSD
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef sun
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef decstation
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef _SEQUENT_
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef sgi
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef SVR4
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef sony_news
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef sequent
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef OSF_ALPHA
+# define LOAD_AVE_TYPE long
+# endif
+
+# if defined (ardent) && defined (titan)
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef tek4300
+# define LOAD_AVE_TYPE long
+# endif
+
+# if defined(alliant) && defined(i860) /* Alliant FX/2800 */
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef _AIX
+# define LOAD_AVE_TYPE long
+# endif
+
+# ifdef convex
+# define LOAD_AVE_TYPE double
+# ifndef LDAV_CVT
+# define LDAV_CVT(n) (n)
+# endif
+# endif
+
+# endif /* No LOAD_AVE_TYPE. */
+
+# ifdef OSF_ALPHA
+/* <sys/param.h> defines an incorrect value for FSCALE on Alpha OSF/1,
+ according to ghazi@noc.rutgers.edu. */
+# undef FSCALE
+# define FSCALE 1024.0
+# endif
+
+# if defined(alliant) && defined(i860) /* Alliant FX/2800 */
+/* <sys/param.h> defines an incorrect value for FSCALE on an
+ Alliant FX/2800 Concentrix 2.2, according to ghazi@noc.rutgers.edu. */
+# undef FSCALE
+# define FSCALE 100.0
+# endif
+
+
+# ifndef FSCALE
+
+/* SunOS and some others define FSCALE in sys/param.h. */
+
+# ifdef MORE_BSD
+# define FSCALE 2048.0
+# endif
+
+# if defined(MIPS) || defined(SVR4) || defined(decstation)
+# define FSCALE 256
+# endif
+
+# if defined (sgi) || defined (sequent)
+/* Sometimes both MIPS and sgi are defined, so FSCALE was just defined
+ above under #ifdef MIPS. But we want the sgi value. */
+# undef FSCALE
+# define FSCALE 1000.0
+# endif
+
+# if defined (ardent) && defined (titan)
+# define FSCALE 65536.0
+# endif
+
+# ifdef tek4300
+# define FSCALE 100.0
+# endif
+
+# ifdef _AIX
+# define FSCALE 65536.0
+# endif
+
+# endif /* Not FSCALE. */
+
+# if !defined (LDAV_CVT) && defined (FSCALE)
+# define LDAV_CVT(n) (((double) (n)) / FSCALE)
+# endif
+
+
+# if defined(sgi) || (defined(mips) && !defined(BSD))
+# define FIXUP_KERNEL_SYMBOL_ADDR(nl) ((nl)[0].n_value &= ~(1 << 31))
+# endif
+
+
+# if !defined (KERNEL_FILE) && defined (sequent)
+# define KERNEL_FILE "/dynix"
+# endif
+
+# if !defined (KERNEL_FILE) && defined (hpux)
+# define KERNEL_FILE "/hp-ux"
+# endif
+
+# if !defined(KERNEL_FILE) && (defined(_SEQUENT_) || defined(MIPS) || defined(SVR4) || defined(ISC) || defined (sgi) || (defined (ardent) && defined (titan)))
+# define KERNEL_FILE "/unix"
+# endif
+
+
+# if !defined (LDAV_SYMBOL) && defined (alliant)
+# define LDAV_SYMBOL "_Loadavg"
+# endif
+
+# if !defined(LDAV_SYMBOL) && ((defined(hpux) && !defined(hp9000s300)) || defined(_SEQUENT_) || defined(SVR4) || defined(ISC) || defined(sgi) || (defined (ardent) && defined (titan)) || defined (_AIX))
+# define LDAV_SYMBOL "avenrun"
+# endif
+
+# ifdef HAVE_UNISTD_H
+# include <unistd.h>
+# endif
+
+# include <stdio.h>
+
+/* LOAD_AVE_TYPE should only get defined if we're going to use the
+ nlist method. */
+# if !defined(LOAD_AVE_TYPE) && (defined(BSD) || defined(LDAV_CVT) || defined(KERNEL_FILE) || defined(LDAV_SYMBOL)) && !defined(__riscos__)
+# define LOAD_AVE_TYPE double
+# endif
+
+# ifdef LOAD_AVE_TYPE
+
+# ifndef VMS
+# ifndef __linux__
+# ifdef HAVE_NLIST_H
+# include <nlist.h>
+# else
+# include <a.out.h>
+# endif
+
+# ifdef SUNOS_5
+# include <fcntl.h>
+# include <kvm.h>
+# include <kstat.h>
+# endif
+
+# if defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
+# include <sys/pstat.h>
+# endif
+
+# ifndef KERNEL_FILE
+# define KERNEL_FILE "/vmunix"
+# endif /* KERNEL_FILE */
+
+# ifndef LDAV_SYMBOL
+# define LDAV_SYMBOL "_avenrun"
+# endif /* LDAV_SYMBOL */
+# endif /* __linux__ */
+
+# else /* VMS */
+
+# ifndef eunice
+# include <iodef.h>
+# include <descrip.h>
+# else /* eunice */
+# include <vms/iodef.h>
+# endif /* eunice */
+# endif /* VMS */
+
+# ifndef LDAV_CVT
+# define LDAV_CVT(n) ((double) (n))
+# endif /* !LDAV_CVT */
+
+# endif /* LOAD_AVE_TYPE */
+
+# if defined(__GNU__) && !defined (NeXT)
+/* Note that NeXT Openstep defines __GNU__ even though it should not. */
+/* GNU system acts much like NeXT, for load average purposes,
+ but not exactly. */
+# define NeXT
+# define host_self mach_host_self
+# endif
+
+# ifdef NeXT
+# ifdef HAVE_MACH_MACH_H
+# include <mach/mach.h>
+# else
+# include <mach.h>
+# endif
+# endif /* NeXT */
+
+# ifdef sgi
+# include <sys/sysmp.h>
+# endif /* sgi */
+
+# ifdef UMAX
+# include <stdio.h>
+# include <signal.h>
+# include <sys/time.h>
+# include <sys/wait.h>
+# include <sys/syscall.h>
+
+# ifdef UMAX_43
+# include <machine/cpu.h>
+# include <inq_stats/statistics.h>
+# include <inq_stats/sysstats.h>
+# include <inq_stats/cpustats.h>
+# include <inq_stats/procstats.h>
+# else /* Not UMAX_43. */
+# include <sys/sysdefs.h>
+# include <sys/statistics.h>
+# include <sys/sysstats.h>
+# include <sys/cpudefs.h>
+# include <sys/cpustats.h>
+# include <sys/procstats.h>
+# endif /* Not UMAX_43. */
+# endif /* UMAX */
+
+# ifdef DGUX
+# include <sys/dg_sys_info.h>
+# endif
+
+# if defined(HAVE_FCNTL_H) || defined(_POSIX_VERSION)
+# include <fcntl.h>
+# else
+# include <sys/file.h>
+# endif
+
+
+/* Avoid static vars inside a function since in HPUX they dump as pure. */
+
+# ifdef NeXT
+static processor_set_t default_set;
+static int getloadavg_initialized;
+# endif /* NeXT */
+
+# ifdef UMAX
+static unsigned int cpus = 0;
+static unsigned int samples;
+# endif /* UMAX */
+
+# ifdef DGUX
+static struct dg_sys_info_load_info load_info; /* what-a-mouthful! */
+# endif /* DGUX */
+
+#if !defined(HAVE_LIBKSTAT) && defined(LOAD_AVE_TYPE)
+/* File descriptor open to /dev/kmem or VMS load ave driver. */
+static int channel;
+/* Nonzero iff channel is valid. */
+static int getloadavg_initialized;
+/* Offset in kmem to seek to read load average, or 0 means invalid. */
+static long offset;
+
+#if !defined(VMS) && !defined(sgi) && !defined(__linux__)
+static struct nlist nl[2];
+#endif /* Not VMS or sgi */
+
+#ifdef SUNOS_5
+static kvm_t *kd;
+#endif /* SUNOS_5 */
+
+#endif /* LOAD_AVE_TYPE && !HAVE_LIBKSTAT */
+
+/* Put the 1 minute, 5 minute and 15 minute load averages
+ into the first NELEM elements of LOADAVG.
+ Return the number written (never more than 3, but may be less than NELEM),
+ or -1 if an error occurred. */
+
+int
+getloadavg (double loadavg[], int nelem)
+{
+ int elem = 0; /* Return value. */
+
+# ifdef NO_GET_LOAD_AVG
+# define LDAV_DONE
+ /* Set errno to zero to indicate that there was no particular error;
+ this function just can't work at all on this system. */
+ errno = 0;
+ elem = -1;
+# endif
+
+# if !defined (LDAV_DONE) && defined (HAVE_LIBKSTAT)
+/* Use libkstat because we don't have to be root. */
+# define LDAV_DONE
+ kstat_ctl_t *kc;
+ kstat_t *ksp;
+ kstat_named_t *kn;
+
+ kc = kstat_open ();
+ if (kc == 0)
+ return -1;
+ ksp = kstat_lookup (kc, "unix", 0, "system_misc");
+ if (ksp == 0 )
+ return -1;
+ if (kstat_read (kc, ksp, 0) == -1)
+ return -1;
+
+
+ kn = kstat_data_lookup (ksp, "avenrun_1min");
+ if (kn == 0)
+ {
+ /* Return -1 if no load average information is available. */
+ nelem = 0;
+ elem = -1;
+ }
+
+ if (nelem >= 1)
+ loadavg[elem++] = (double) kn->value.ul/FSCALE;
+
+ if (nelem >= 2)
+ {
+ kn = kstat_data_lookup (ksp, "avenrun_5min");
+ if (kn != 0)
+ {
+ loadavg[elem++] = (double) kn->value.ul/FSCALE;
+
+ if (nelem >= 3)
+ {
+ kn = kstat_data_lookup (ksp, "avenrun_15min");
+ if (kn != 0)
+ loadavg[elem++] = (double) kn->value.ul/FSCALE;
+ }
+ }
+ }
+
+ kstat_close (kc);
+# endif /* HAVE_LIBKSTAT */
+
+# if !defined (LDAV_DONE) && defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
+/* Use pstat_getdynamic() because we don't have to be root. */
+# define LDAV_DONE
+# undef LOAD_AVE_TYPE
+
+ struct pst_dynamic dyn_info;
+ if (pstat_getdynamic (&dyn_info, sizeof (dyn_info), 0, 0) < 0)
+ return -1;
+ if (nelem > 0)
+ loadavg[elem++] = dyn_info.psd_avg_1_min;
+ if (nelem > 1)
+ loadavg[elem++] = dyn_info.psd_avg_5_min;
+ if (nelem > 2)
+ loadavg[elem++] = dyn_info.psd_avg_15_min;
+
+# endif /* hpux && HAVE_PSTAT_GETDYNAMIC */
+
+# if !defined (LDAV_DONE) && defined (__linux__)
+# define LDAV_DONE
+# undef LOAD_AVE_TYPE
+
+# ifndef LINUX_LDAV_FILE
+# define LINUX_LDAV_FILE "/proc/loadavg"
+# endif
+
+ char ldavgbuf[40];
+ double load_ave[3];
+ int fd, count;
+
+ fd = open (LINUX_LDAV_FILE, O_RDONLY);
+ if (fd == -1)
+ return -1;
+ count = read (fd, ldavgbuf, 40);
+ (void) close (fd);
+ if (count <= 0)
+ return -1;
+
+ /* The following sscanf must use the C locale. */
+ setlocale (LC_NUMERIC, "C");
+ count = sscanf (ldavgbuf, "%lf %lf %lf",
+ &load_ave[0], &load_ave[1], &load_ave[2]);
+ setlocale (LC_NUMERIC, "");
+ if (count < 1)
+ return -1;
+
+ for (elem = 0; elem < nelem && elem < count; elem++)
+ loadavg[elem] = load_ave[elem];
+
+ return elem;
+
+# endif /* __linux__ */
+
+# if !defined (LDAV_DONE) && defined (__NetBSD__)
+# define LDAV_DONE
+# undef LOAD_AVE_TYPE
+
+# ifndef NETBSD_LDAV_FILE
+# define NETBSD_LDAV_FILE "/kern/loadavg"
+# endif
+
+ unsigned long int load_ave[3], scale;
+ int count;
+ FILE *fp;
+
+ fp = fopen (NETBSD_LDAV_FILE, "r");
+ if (fp == NULL)
+ return -1;
+ count = fscanf (fp, "%lu %lu %lu %lu\n",
+ &load_ave[0], &load_ave[1], &load_ave[2],
+ &scale);
+ (void) fclose (fp);
+ if (count != 4)
+ return -1;
+
+ for (elem = 0; elem < nelem; elem++)
+ loadavg[elem] = (double) load_ave[elem] / (double) scale;
+
+ return elem;
+
+# endif /* __NetBSD__ */
+
+# if !defined (LDAV_DONE) && defined (NeXT)
+# define LDAV_DONE
+ /* The NeXT code was adapted from iscreen 3.2. */
+
+ host_t host;
+ struct processor_set_basic_info info;
+ unsigned info_count;
+
+ /* We only know how to get the 1-minute average for this system,
+ so even if the caller asks for more than 1, we only return 1. */
+
+ if (!getloadavg_initialized)
+ {
+ if (processor_set_default (host_self (), &default_set) == KERN_SUCCESS)
+ getloadavg_initialized = 1;
+ }
+
+ if (getloadavg_initialized)
+ {
+ info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
+ if (processor_set_info (default_set, PROCESSOR_SET_BASIC_INFO, &host,
+ (processor_set_info_t) &info, &info_count)
+ != KERN_SUCCESS)
+ getloadavg_initialized = 0;
+ else
+ {
+ if (nelem > 0)
+ loadavg[elem++] = (double) info.load_average / LOAD_SCALE;
+ }
+ }
+
+ if (!getloadavg_initialized)
+ return -1;
+# endif /* NeXT */
+
+# if !defined (LDAV_DONE) && defined (UMAX)
+# define LDAV_DONE
+/* UMAX 4.2, which runs on the Encore Multimax multiprocessor, does not
+ have a /dev/kmem. Information about the workings of the running kernel
+ can be gathered with inq_stats system calls.
+ We only know how to get the 1-minute average for this system. */
+
+ struct proc_summary proc_sum_data;
+ struct stat_descr proc_info;
+ double load;
+ register unsigned int i, j;
+
+ if (cpus == 0)
+ {
+ register unsigned int c, i;
+ struct cpu_config conf;
+ struct stat_descr desc;
+
+ desc.sd_next = 0;
+ desc.sd_subsys = SUBSYS_CPU;
+ desc.sd_type = CPUTYPE_CONFIG;
+ desc.sd_addr = (char *) &conf;
+ desc.sd_size = sizeof conf;
+
+ if (inq_stats (1, &desc))
+ return -1;
+
+ c = 0;
+ for (i = 0; i < conf.config_maxclass; ++i)
+ {
+ struct class_stats stats;
+ memset (&stats, '\0', sizeof stats);
+
+ desc.sd_type = CPUTYPE_CLASS;
+ desc.sd_objid = i;
+ desc.sd_addr = (char *) &stats;
+ desc.sd_size = sizeof stats;
+
+ if (inq_stats (1, &desc))
+ return -1;
+
+ c += stats.class_numcpus;
+ }
+ cpus = c;
+ samples = cpus < 2 ? 3 : (2 * cpus / 3);
+ }
+
+ proc_info.sd_next = 0;
+ proc_info.sd_subsys = SUBSYS_PROC;
+ proc_info.sd_type = PROCTYPE_SUMMARY;
+ proc_info.sd_addr = (char *) &proc_sum_data;
+ proc_info.sd_size = sizeof (struct proc_summary);
+ proc_info.sd_sizeused = 0;
+
+ if (inq_stats (1, &proc_info) != 0)
+ return -1;
+
+ load = proc_sum_data.ps_nrunnable;
+ j = 0;
+ for (i = samples - 1; i > 0; --i)
+ {
+ load += proc_sum_data.ps_nrun[j];
+ if (j++ == PS_NRUNSIZE)
+ j = 0;
+ }
+
+ if (nelem > 0)
+ loadavg[elem++] = load / samples / cpus;
+# endif /* UMAX */
+
+# if !defined (LDAV_DONE) && defined (DGUX)
+# define LDAV_DONE
+ /* This call can return -1 for an error, but with good args
+ it's not supposed to fail. The first argument is for no
+ apparent reason of type 'long int *'. */
+ dg_sys_info ((long int *) &load_info,
+ DG_SYS_INFO_LOAD_INFO_TYPE,
+ DG_SYS_INFO_LOAD_VERSION_0);
+
+ if (nelem > 0)
+ loadavg[elem++] = load_info.one_minute;
+ if (nelem > 1)
+ loadavg[elem++] = load_info.five_minute;
+ if (nelem > 2)
+ loadavg[elem++] = load_info.fifteen_minute;
+# endif /* DGUX */
+
+# if !defined (LDAV_DONE) && defined (apollo)
+# define LDAV_DONE
+/* Apollo code from lisch@mentorg.com (Ray Lischner).
+
+ This system call is not documented. The load average is obtained as
+ three long integers, for the load average over the past minute,
+ five minutes, and fifteen minutes. Each value is a scaled integer,
+ with 16 bits of integer part and 16 bits of fraction part.
+
+ I'm not sure which operating system first supported this system call,
+ but I know that SR10.2 supports it. */
+
+ extern void proc1_$get_loadav ();
+ unsigned long load_ave[3];
+
+ proc1_$get_loadav (load_ave);
+
+ if (nelem > 0)
+ loadavg[elem++] = load_ave[0] / 65536.0;
+ if (nelem > 1)
+ loadavg[elem++] = load_ave[1] / 65536.0;
+ if (nelem > 2)
+ loadavg[elem++] = load_ave[2] / 65536.0;
+# endif /* apollo */
+
+# if !defined (LDAV_DONE) && defined (OSF_MIPS)
+# define LDAV_DONE
+
+ struct tbl_loadavg load_ave;
+ table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
+ loadavg[elem++]
+ = (load_ave.tl_lscale == 0
+ ? load_ave.tl_avenrun.d[0]
+ : (load_ave.tl_avenrun.l[0] / (double) load_ave.tl_lscale));
+# endif /* OSF_MIPS */
+
+# if !defined (LDAV_DONE) && (defined (__MSDOS__) || defined (WINDOWS32))
+# define LDAV_DONE
+
+ /* A faithful emulation is going to have to be saved for a rainy day. */
+ for ( ; elem < nelem; elem++)
+ {
+ loadavg[elem] = 0.0;
+ }
+# endif /* __MSDOS__ || WINDOWS32 */
+
+# if !defined (LDAV_DONE) && defined (OSF_ALPHA)
+# define LDAV_DONE
+
+ struct tbl_loadavg load_ave;
+ table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
+ for (elem = 0; elem < nelem; elem++)
+ loadavg[elem]
+ = (load_ave.tl_lscale == 0
+ ? load_ave.tl_avenrun.d[elem]
+ : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
+# endif /* OSF_ALPHA */
+
+# if !defined (LDAV_DONE) && defined (VMS)
+ /* VMS specific code -- read from the Load Ave driver. */
+
+ LOAD_AVE_TYPE load_ave[3];
+ static int getloadavg_initialized = 0;
+# ifdef eunice
+ struct
+ {
+ int dsc$w_length;
+ char *dsc$a_pointer;
+ } descriptor;
+# endif
+
+ /* Ensure that there is a channel open to the load ave device. */
+ if (!getloadavg_initialized)
+ {
+ /* Attempt to open the channel. */
+# ifdef eunice
+ descriptor.dsc$w_length = 18;
+ descriptor.dsc$a_pointer = "$$VMS_LOAD_AVERAGE";
+# else
+ $DESCRIPTOR (descriptor, "LAV0:");
+# endif
+ if (sys$assign (&descriptor, &channel, 0, 0) & 1)
+ getloadavg_initialized = 1;
+ }
+
+ /* Read the load average vector. */
+ if (getloadavg_initialized
+ && !(sys$qiow (0, channel, IO$_READVBLK, 0, 0, 0,
+ load_ave, 12, 0, 0, 0, 0) & 1))
+ {
+ sys$dassgn (channel);
+ getloadavg_initialized = 0;
+ }
+
+ if (!getloadavg_initialized)
+ return -1;
+# endif /* VMS */
+
+# if !defined (LDAV_DONE) && defined(LOAD_AVE_TYPE) && !defined(VMS)
+
+ /* UNIX-specific code -- read the average from /dev/kmem. */
+
+# define LDAV_PRIVILEGED /* This code requires special installation. */
+
+ LOAD_AVE_TYPE load_ave[3];
+
+ /* Get the address of LDAV_SYMBOL. */
+ if (offset == 0)
+ {
+# ifndef sgi
+# ifndef NLIST_STRUCT
+ strcpy (nl[0].n_name, LDAV_SYMBOL);
+ strcpy (nl[1].n_name, "");
+# else /* NLIST_STRUCT */
+# ifdef HAVE_STRUCT_NLIST_N_UN_N_NAME
+ nl[0].n_un.n_name = LDAV_SYMBOL;
+ nl[1].n_un.n_name = 0;
+# else /* not HAVE_STRUCT_NLIST_N_UN_N_NAME */
+ nl[0].n_name = LDAV_SYMBOL;
+ nl[1].n_name = 0;
+# endif /* not HAVE_STRUCT_NLIST_N_UN_N_NAME */
+# endif /* NLIST_STRUCT */
+
+# ifndef SUNOS_5
+ if (
+# if !(defined (_AIX) && !defined (ps2))
+ nlist (KERNEL_FILE, nl)
+# else /* _AIX */
+ knlist (nl, 1, sizeof (nl[0]))
+# endif
+ >= 0)
+ /* Omit "&& nl[0].n_type != 0 " -- it breaks on Sun386i. */
+ {
+# ifdef FIXUP_KERNEL_SYMBOL_ADDR
+ FIXUP_KERNEL_SYMBOL_ADDR (nl);
+# endif
+ offset = nl[0].n_value;
+ }
+# endif /* !SUNOS_5 */
+# else /* sgi */
+ int ldav_off;
+
+ ldav_off = sysmp (MP_KERNADDR, MPKA_AVENRUN);
+ if (ldav_off != -1)
+ offset = (long) ldav_off & 0x7fffffff;
+# endif /* sgi */
+ }
+
+ /* Make sure we have /dev/kmem open. */
+ if (!getloadavg_initialized)
+ {
+# ifndef SUNOS_5
+ channel = open ("/dev/kmem", 0);
+ if (channel >= 0)
+ {
+ /* Set the channel to close on exec, so it does not
+ litter any child's descriptor table. */
+# ifdef F_SETFD
+# ifndef FD_CLOEXEC
+# define FD_CLOEXEC 1
+# endif
+ (void) fcntl (channel, F_SETFD, FD_CLOEXEC);
+# endif
+ getloadavg_initialized = 1;
+ }
+# else /* SUNOS_5 */
+ /* We pass 0 for the kernel, corefile, and swapfile names
+ to use the currently running kernel. */
+ kd = kvm_open (0, 0, 0, O_RDONLY, 0);
+ if (kd != 0)
+ {
+ /* nlist the currently running kernel. */
+ kvm_nlist (kd, nl);
+ offset = nl[0].n_value;
+ getloadavg_initialized = 1;
+ }
+# endif /* SUNOS_5 */
+ }
+
+ /* If we can, get the load average values. */
+ if (offset && getloadavg_initialized)
+ {
+ /* Try to read the load. */
+# ifndef SUNOS_5
+ if (lseek (channel, offset, 0) == -1L
+ || read (channel, (char *) load_ave, sizeof (load_ave))
+ != sizeof (load_ave))
+ {
+ close (channel);
+ getloadavg_initialized = 0;
+ }
+# else /* SUNOS_5 */
+ if (kvm_read (kd, offset, (char *) load_ave, sizeof (load_ave))
+ != sizeof (load_ave))
+ {
+ kvm_close (kd);
+ getloadavg_initialized = 0;
+ }
+# endif /* SUNOS_5 */
+ }
+
+ if (offset == 0 || !getloadavg_initialized)
+ return -1;
+# endif /* LOAD_AVE_TYPE and not VMS */
+
+# if !defined (LDAV_DONE) && defined (LOAD_AVE_TYPE) /* Including VMS. */
+ if (nelem > 0)
+ loadavg[elem++] = LDAV_CVT (load_ave[0]);
+ if (nelem > 1)
+ loadavg[elem++] = LDAV_CVT (load_ave[1]);
+ if (nelem > 2)
+ loadavg[elem++] = LDAV_CVT (load_ave[2]);
+
+# define LDAV_DONE
+# endif /* !LDAV_DONE && LOAD_AVE_TYPE */
+
+# ifdef LDAV_DONE
+ return elem;
+# else
+ /* Set errno to zero to indicate that there was no particular error;
+ this function just can't work at all on this system. */
+ errno = 0;
+ return -1;
+# endif
+}
+
+#endif /* ! HAVE_GETLOADAVG */
+
+#ifdef TEST
+#include "makeint.h"
+
+int
+main (int argc, char **argv)
+{
+ int naptime = 0;
+
+ if (argc > 1)
+ naptime = atoi (argv[1]);
+
+ while (1)
+ {
+ double avg[3];
+ int loads;
+
+ errno = 0; /* Don't be misled if it doesn't set errno. */
+ loads = getloadavg (avg, 3);
+ if (loads == -1)
+ {
+ perror ("Error getting load average");
+ exit (1);
+ }
+ if (loads > 0)
+ printf ("1-minute: %f ", avg[0]);
+ if (loads > 1)
+ printf ("5-minute: %f ", avg[1]);
+ if (loads > 2)
+ printf ("15-minute: %f ", avg[2]);
+ if (loads > 0)
+ putchar ('\n');
+
+ if (naptime == 0)
+ break;
+ sleep (naptime);
+ }
+
+ exit (0);
+}
+#endif /* TEST */
diff --git a/getopt.c b/getopt.c
new file mode 100644
index 0000000..e3538d4
--- /dev/null
+++ b/getopt.c
@@ -0,0 +1,1026 @@
+/* Getopt for GNU.
+NOTE: getopt is now part of the C library, so if you don't know what
+"Keep this file name-space clean" means, talk to drepper@gnu.org
+before changing it!
+
+Copyright (C) 1987-2016 Free Software Foundation, Inc.
+
+NOTE: The canonical source of this file is maintained with the GNU C Library.
+Bugs can be reported to bug-glibc@gnu.org.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
+ Ditto for AIX 3.2 and <stdlib.h>. */
+#ifndef _NO_PROTO
+# define _NO_PROTO
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if !defined __STDC__ || !__STDC__
+/* This is a separate conditional since some stdc systems
+ reject `defined (const)'. */
+# ifndef const
+# define const
+# endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
+# include <gnu-versions.h>
+# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+# define ELIDE_CODE
+# endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+ to get __GNU_LIBRARY__ defined. */
+#ifdef __GNU_LIBRARY__
+/* Don't include stdlib.h for non-GNU C libraries because some of them
+ contain conflicting prototypes for getopt. */
+# include <stdlib.h>
+# include <unistd.h>
+#endif /* GNU C library. */
+
+#ifdef VMS
+# include <unixlib.h>
+# if HAVE_STRING_H - 0
+# include <string.h>
+# endif
+#endif
+
+/* This is for other GNU distributions with internationalized messages.
+ When compiling libc, the _ macro is predefined. */
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+
+/* This version of `getopt' appears to the caller like standard Unix 'getopt'
+ but it behaves differently for the user, since it allows the user
+ to intersperse the options with the other arguments.
+
+ As `getopt' works, it permutes the elements of ARGV so that,
+ when it is done, all the options precede everything else. Thus
+ all application programs are extended to handle flexible argument order.
+
+ Setting the environment variable POSIXLY_CORRECT disables permutation.
+ Then the behavior is completely standard.
+
+ GNU application programs can use a third alternative mode in which
+ they can distinguish the relative order of options and other arguments. */
+
+#include "getopt.h"
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+char *optarg = NULL;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+/* 1003.2 says this must be 1 before any call. */
+int optind = 1;
+
+/* Formerly, initialization of getopt depended on optind==0, which
+ causes problems with re-calling getopt as programs generally don't
+ know that. */
+
+int __getopt_initialized = 0;
+
+/* The next char to be scanned in the option-element
+ in which the last option character we returned was found.
+ This allows us to pick up the scan where we left off.
+
+ If this is zero, or a null string, it means resume the scan
+ by advancing to the next ARGV-element. */
+
+static char *nextchar;
+
+/* Callers store zero here to inhibit the error message
+ for unrecognized options. */
+
+int opterr = 1;
+
+/* Set to an option character which was unrecognized.
+ This must be initialized on some systems to avoid linking in the
+ system's own getopt implementation. */
+
+int optopt = '?';
+
+/* Describe how to deal with options that follow non-option ARGV-elements.
+
+ If the caller did not specify anything,
+ the default is REQUIRE_ORDER if the environment variable
+ POSIXLY_CORRECT is defined, PERMUTE otherwise.
+
+ REQUIRE_ORDER means don't recognize them as options;
+ stop option processing when the first non-option is seen.
+ This is what Unix does.
+ This mode of operation is selected by either setting the environment
+ variable POSIXLY_CORRECT, or using `+' as the first character
+ of the list of option characters.
+
+ PERMUTE is the default. We permute the contents of ARGV as we scan,
+ so that eventually all the non-options are at the end. This allows options
+ to be given in any order, even with programs that were not written to
+ expect this.
+
+ RETURN_IN_ORDER is an option available to programs that were written
+ to expect options and other ARGV-elements in any order and that care about
+ the ordering of the two. We describe each non-option ARGV-element
+ as if it were the argument of an option with character code 1.
+ Using `-' as the first character of the list of option characters
+ selects this mode of operation.
+
+ The special argument `--' forces an end of option-scanning regardless
+ of the value of `ordering'. In the case of RETURN_IN_ORDER, only
+ `--' can cause `getopt' to return -1 with `optind' != ARGC. */
+
+static enum
+{
+ REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+} ordering;
+
+/* Value of POSIXLY_CORRECT environment variable. */
+static char *posixly_correct;
+
+#ifdef __GNU_LIBRARY__
+/* We want to avoid inclusion of string.h with non-GNU libraries
+ because there are many ways it can cause trouble.
+ On some systems, it contains special magic macros that don't work
+ in GCC. */
+# include <string.h>
+# define my_index strchr
+#else
+
+# if HAVE_STRING_H
+# include <string.h>
+# else
+# include <strings.h>
+# endif
+
+/* Avoid depending on library functions or files
+ whose names are inconsistent. */
+
+#ifndef getenv
+extern char *getenv ();
+#endif
+
+static char *
+my_index (const char *str, int chr)
+{
+ while (*str)
+ {
+ if (*str == chr)
+ return (char *) str;
+ str++;
+ }
+ return 0;
+}
+
+/* If using GCC, we can safely declare strlen this way.
+ If not using GCC, it is ok not to declare it. */
+#ifdef __GNUC__
+/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
+ That was relevant to code that was here before. */
+# if (!defined __STDC__ || !__STDC__) && !defined strlen
+/* gcc with -traditional declares the built-in strlen to return int,
+ and has done so at least since version 2.4.5. -- rms. */
+extern int strlen (const char *);
+# endif /* not __STDC__ */
+#endif /* __GNUC__ */
+
+#endif /* not __GNU_LIBRARY__ */
+
+/* Handle permutation of arguments. */
+
+/* Describe the part of ARGV that contains non-options that have
+ been skipped. `first_nonopt' is the index in ARGV of the first of them;
+ `last_nonopt' is the index after the last of them. */
+
+static int first_nonopt;
+static int last_nonopt;
+
+#ifdef _LIBC
+/* Bash 2.0 gives us an environment variable containing flags
+ indicating ARGV elements that should not be considered arguments. */
+
+/* Defined in getopt_init.c */
+extern char *__getopt_nonoption_flags;
+
+static int nonoption_flags_max_len;
+static int nonoption_flags_len;
+
+static int original_argc;
+static char *const *original_argv;
+
+/* Make sure the environment variable bash 2.0 puts in the environment
+ is valid for the getopt call we must make sure that the ARGV passed
+ to getopt is that one passed to the process. */
+static void __attribute__ ((unused))
+store_args_and_env (int argc, char *const *argv)
+{
+ /* XXX This is no good solution. We should rather copy the args so
+ that we can compare them later. But we must not use malloc(3). */
+ original_argc = argc;
+ original_argv = argv;
+}
+# ifdef text_set_element
+text_set_element (__libc_subinit, store_args_and_env);
+# endif /* text_set_element */
+
+# define SWAP_FLAGS(ch1, ch2) \
+ if (nonoption_flags_len > 0) \
+ { \
+ char __tmp = __getopt_nonoption_flags[ch1]; \
+ __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
+ __getopt_nonoption_flags[ch2] = __tmp; \
+ }
+#else /* !_LIBC */
+# define SWAP_FLAGS(ch1, ch2)
+#endif /* _LIBC */
+
+/* Exchange two adjacent subsequences of ARGV.
+ One subsequence is elements [first_nonopt,last_nonopt)
+ which contains all the non-options that have been skipped so far.
+ The other is elements [last_nonopt,optind), which contains all
+ the options processed since those non-options were skipped.
+
+ `first_nonopt' and `last_nonopt' are relocated so that they describe
+ the new indices of the non-options in ARGV after they are moved. */
+
+#if defined __STDC__ && __STDC__
+static void exchange (char **);
+#endif
+
+static void
+exchange (char **argv)
+{
+ int bottom = first_nonopt;
+ int middle = last_nonopt;
+ int top = optind;
+ char *tem;
+
+ /* Exchange the shorter segment with the far end of the longer segment.
+ That puts the shorter segment into the right place.
+ It leaves the longer segment in the right place overall,
+ but it consists of two parts that need to be swapped next. */
+
+#ifdef _LIBC
+ /* First make sure the handling of the `__getopt_nonoption_flags'
+ string can work normally. Our top argument must be in the range
+ of the string. */
+ if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
+ {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc (top + 1);
+ if (new_str == NULL)
+ nonoption_flags_len = nonoption_flags_max_len = 0;
+ else
+ {
+ memset (__mempcpy (new_str, __getopt_nonoption_flags,
+ nonoption_flags_max_len),
+ '\0', top + 1 - nonoption_flags_max_len);
+ nonoption_flags_max_len = top + 1;
+ __getopt_nonoption_flags = new_str;
+ }
+ }
+#endif
+
+ while (top > middle && middle > bottom)
+ {
+ if (top - middle > middle - bottom)
+ {
+ /* Bottom segment is the short one. */
+ int len = middle - bottom;
+ register int i;
+
+ /* Swap it with the top part of the top segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
+ }
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
+ }
+ else
+ {
+ /* Top segment is the short one. */
+ int len = top - middle;
+ register int i;
+
+ /* Swap it with the bottom part of the bottom segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
+ SWAP_FLAGS (bottom + i, middle + i);
+ }
+ /* Exclude the moved top segment from further swapping. */
+ bottom += len;
+ }
+ }
+
+ /* Update records for the slots the non-options now occupy. */
+
+ first_nonopt += (optind - last_nonopt);
+ last_nonopt = optind;
+}
+
+/* Initialize the internal data when the first call is made. */
+
+#if defined __STDC__ && __STDC__
+static const char *_getopt_initialize (int, char *const *, const char *);
+#endif
+static const char *
+_getopt_initialize (int argc, char *const *argv, const char *optstring)
+{
+ /* Start processing options with ARGV-element 1 (since ARGV-element 0
+ is the program name); the sequence of previously skipped
+ non-option ARGV-elements is empty. */
+
+ first_nonopt = last_nonopt = optind;
+
+ nextchar = NULL;
+
+ posixly_correct = getenv ("POSIXLY_CORRECT");
+
+ /* Determine how to handle the ordering of options and nonoptions. */
+
+ if (optstring[0] == '-')
+ {
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
+ }
+ else if (optstring[0] == '+')
+ {
+ ordering = REQUIRE_ORDER;
+ ++optstring;
+ }
+ else if (posixly_correct != NULL)
+ ordering = REQUIRE_ORDER;
+ else
+ ordering = PERMUTE;
+
+#ifdef _LIBC
+ if (posixly_correct == NULL
+ && argc == original_argc && argv == original_argv)
+ {
+ if (nonoption_flags_max_len == 0)
+ {
+ if (__getopt_nonoption_flags == NULL
+ || __getopt_nonoption_flags[0] == '\0')
+ nonoption_flags_max_len = -1;
+ else
+ {
+ const char *orig_str = __getopt_nonoption_flags;
+ int len = nonoption_flags_max_len = strlen (orig_str);
+ if (nonoption_flags_max_len < argc)
+ nonoption_flags_max_len = argc;
+ __getopt_nonoption_flags =
+ (char *) malloc (nonoption_flags_max_len);
+ if (__getopt_nonoption_flags == NULL)
+ nonoption_flags_max_len = -1;
+ else
+ memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
+ '\0', nonoption_flags_max_len - len);
+ }
+ }
+ nonoption_flags_len = nonoption_flags_max_len;
+ }
+ else
+ nonoption_flags_len = 0;
+#endif
+
+ return optstring;
+}
+
+/* Scan elements of ARGV (whose length is ARGC) for option characters
+ given in OPTSTRING.
+
+ If an element of ARGV starts with '-', and is not exactly "-" or "--",
+ then it is an option element. The characters of this element
+ (aside from the initial '-') are option characters. If `getopt'
+ is called repeatedly, it returns successively each of the option characters
+ from each of the option elements.
+
+ If `getopt' finds another option character, it returns that character,
+ updating `optind' and `nextchar' so that the next call to `getopt' can
+ resume the scan with the following option character or ARGV-element.
+
+ If there are no more option characters, `getopt' returns -1.
+ Then `optind' is the index in ARGV of the first ARGV-element
+ that is not an option. (The ARGV-elements have been permuted
+ so that those that are not options now come last.)
+
+ OPTSTRING is a string containing the legitimate option characters.
+ If an option character is seen that is not listed in OPTSTRING,
+ return '?' after printing an error message. If you set `opterr' to
+ zero, the error message is suppressed but we still return '?'.
+
+ If a char in OPTSTRING is followed by a colon, that means it wants an arg,
+ so the following text in the same ARGV-element, or the text of the following
+ ARGV-element, is returned in `optarg'. Two colons mean an option that
+ wants an optional arg; if there is text in the current ARGV-element,
+ it is returned in `optarg', otherwise `optarg' is set to zero.
+
+ If OPTSTRING starts with `-' or `+', it requests different methods of
+ handling the non-option ARGV-elements.
+ See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
+
+ Long-named options begin with `--' instead of `-'.
+ Their names may be abbreviated as long as the abbreviation is unique
+ or is an exact match for some defined option. If they have an
+ argument, it follows the option name in the same ARGV-element, separated
+ from the option name by a `=', or else the in next ARGV-element.
+ When `getopt' finds a long-named option, it returns 0 if that option's
+ `flag' field is nonzero, the value of the option's `val' field
+ if the `flag' field is zero.
+
+ The elements of ARGV aren't really const, because we permute them.
+ But we pretend they're const in the prototype to be compatible
+ with other systems.
+
+ LONGOPTS is a vector of `struct option' terminated by an
+ element containing a name which is zero.
+
+ LONGIND returns the index in LONGOPT of the long-named option found.
+ It is only valid when a long-named option has been found by the most
+ recent call.
+
+ If LONG_ONLY is nonzero, '-' as well as '--' can introduce
+ long-named options. */
+
+int
+_getopt_internal (int argc, char *const *argv, const char *optstring,
+ const struct option *longopts, int *longind, int long_only)
+{
+ optarg = NULL;
+
+ if (optind == 0 || !__getopt_initialized)
+ {
+ if (optind == 0)
+ optind = 1; /* Don't scan ARGV[0], the program name. */
+ optstring = _getopt_initialize (argc, argv, optstring);
+ __getopt_initialized = 1;
+ }
+
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
+#ifdef _LIBC
+# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
+ || (optind < nonoption_flags_len \
+ && __getopt_nonoption_flags[optind] == '1'))
+#else
+# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
+#endif
+
+ if (nextchar == NULL || *nextchar == '\0')
+ {
+ /* Advance to the next ARGV-element. */
+
+ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+ moved back by the user (who may also have changed the arguments). */
+ if (last_nonopt > optind)
+ last_nonopt = optind;
+ if (first_nonopt > optind)
+ first_nonopt = optind;
+
+ if (ordering == PERMUTE)
+ {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
+
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (last_nonopt != optind)
+ first_nonopt = optind;
+
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
+
+ while (optind < argc && NONOPTION_P)
+ optind++;
+ last_nonopt = optind;
+ }
+
+ /* The special ARGV-element `--' means premature end of options.
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
+
+ if (optind != argc && !strcmp (argv[optind], "--"))
+ {
+ optind++;
+
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = optind;
+ last_nonopt = argc;
+
+ optind = argc;
+ }
+
+ /* If we have done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
+
+ if (optind == argc)
+ {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if (first_nonopt != last_nonopt)
+ optind = first_nonopt;
+ return -1;
+ }
+
+ /* If we have come to a non-option and did not permute it,
+ either stop the scan or describe it to the caller and pass it by. */
+
+ if (NONOPTION_P)
+ {
+ if (ordering == REQUIRE_ORDER)
+ return -1;
+ optarg = argv[optind++];
+ return 1;
+ }
+
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
+
+ nextchar = (argv[optind] + 1
+ + (longopts != NULL && argv[optind][1] == '-'));
+ }
+
+ /* Decode the current option-ARGV-element. */
+
+ /* Check whether the ARGV-element is a long option.
+
+ If long_only and the ARGV-element has the form "-f", where f is
+ a valid short option, don't consider it an abbreviated form of
+ a long option that starts with f. Otherwise there would be no
+ way to give the -f short option.
+
+ On the other hand, if there's a long option "fubar" and
+ the ARGV-element is "-fu", do consider that an abbreviation of
+ the long option, just like "--fu", and not "-f" with arg "u".
+
+ This distinction seems to be the most useful approach. */
+
+ if (longopts != NULL
+ && (argv[optind][1] == '-'
+ || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = -1;
+ int option_index;
+
+ for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, nextchar, nameend - nextchar))
+ {
+ if ((unsigned int) (nameend - nextchar)
+ == (unsigned int) strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+
+ if (ambig && !exact)
+ {
+ if (opterr)
+ fprintf (stderr, _("%s: option '%s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen (nextchar);
+ optind++;
+ optopt = 0;
+ return '?';
+ }
+
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ optind++;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else
+ {
+ if (opterr)
+ if (argv[optind - 1][1] == '-')
+ /* --option */
+ fprintf (stderr,
+ _("%s: option '--%s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+ else
+ /* +option or -option */
+ fprintf (stderr,
+ _("%s: option '%c%s' doesn't allow an argument\n"),
+ argv[0], argv[optind - 1][0], pfound->name);
+
+ nextchar += strlen (nextchar);
+
+ optopt = pfound->val;
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
+ {
+ if (opterr)
+ fprintf (stderr,
+ _("%s: option '%s' requires an argument\n"),
+ argv[0], argv[optind - 1]);
+ nextchar += strlen (nextchar);
+ optopt = pfound->val;
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+
+ /* Can't find it as a long option. If this is not getopt_long_only,
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
+ if (!long_only || argv[optind][1] == '-'
+ || my_index (optstring, *nextchar) == NULL)
+ {
+ if (opterr)
+ {
+ if (argv[optind][1] == '-')
+ /* --option */
+ fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
+ argv[0], argv[optind][0], nextchar);
+ }
+ nextchar = (char *) "";
+ optind++;
+ optopt = 0;
+ return '?';
+ }
+ }
+
+ /* Look at and handle the next short option-character. */
+
+ {
+ char c = *nextchar++;
+ char *temp = my_index (optstring, c);
+
+ /* Increment `optind' when we start to process its last character. */
+ if (*nextchar == '\0')
+ ++optind;
+
+ if (temp == NULL || c == ':')
+ {
+ if (opterr)
+ {
+ if (posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: illegal option -- %c\n"),
+ argv[0], c);
+ else
+ fprintf (stderr, _("%s: invalid option -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ return '?';
+ }
+ /* Convenience. Treat POSIX -W foo same as long option --foo */
+ if (temp[0] == 'W' && temp[1] == ';')
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = 0;
+ int option_index;
+
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ }
+ else if (optind == argc)
+ {
+ if (opterr)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ return c;
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+
+ /* optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, nextchar, nameend - nextchar))
+ {
+ if ((unsigned int) (nameend - nextchar) == strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+ if (ambig && !exact)
+ {
+ if (opterr)
+ fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen (nextchar);
+ optind++;
+ return '?';
+ }
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else
+ {
+ if (opterr)
+ fprintf (stderr, _("\
+%s: option '-W %s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+
+ nextchar += strlen (nextchar);
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
+ {
+ if (opterr)
+ fprintf (stderr,
+ _("%s: option '%s' requires an argument\n"),
+ argv[0], argv[optind - 1]);
+ nextchar += strlen (nextchar);
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+ nextchar = NULL;
+ return 'W'; /* Let the application handle it. */
+ }
+ if (temp[1] == ':')
+ {
+ if (temp[2] == ':')
+ {
+ /* This is an option that accepts an argument optionally. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ optind++;
+ }
+ else
+ optarg = NULL;
+ nextchar = NULL;
+ }
+ else
+ {
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ }
+ else if (optind == argc)
+ {
+ if (opterr)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr,
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+ nextchar = NULL;
+ }
+ }
+ return c;
+ }
+}
+
+int
+getopt (int argc, char *const *argv, const char *optstring)
+{
+ return _getopt_internal (argc, argv, optstring,
+ (const struct option *) 0,
+ (int *) 0,
+ 0);
+}
+
+#endif /* Not ELIDE_CODE. */
+
+#ifdef TEST
+
+/* Compile with -DTEST to make an executable for use in testing
+ the above definition of `getopt'. */
+
+int
+main (int argc, char **argv)
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+
+ c = getopt (argc, argv, "abc:d:0123456789");
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value '%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
diff --git a/getopt.h b/getopt.h
new file mode 100644
index 0000000..4acd4ee
--- /dev/null
+++ b/getopt.h
@@ -0,0 +1,130 @@
+/* Declarations for getopt.
+Copyright (C) 1989-2016 Free Software Foundation, Inc.
+
+NOTE: The canonical source of this file is maintained with the GNU C Library.
+Bugs can be reported to bug-glibc@gnu.org.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _GETOPT_H
+#define _GETOPT_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+ for unrecognized options. */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized. */
+
+extern int optopt;
+
+/* Describe the long-named options requested by the application.
+ The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+ of `struct option' terminated by an element containing a name which is
+ zero.
+
+ The field `has_arg' is:
+ no_argument (or 0) if the option does not take an argument,
+ required_argument (or 1) if the option requires an argument,
+ optional_argument (or 2) if the option takes an optional argument.
+
+ If the field `flag' is not NULL, it points to a variable that is set
+ to the value given in the field `val' when the option is found, but
+ left unchanged if the option is not found.
+
+ To have a long-named option do something other than set an `int' to
+ a compiled-in constant, such as set a value from `optarg', set the
+ option's `flag' field to zero and its `val' field to a nonzero
+ value (the equivalent single-letter option character, if there is
+ one). For long options that have a zero `flag' field, `getopt'
+ returns the contents of the `val' field. */
+
+struct option
+{
+#if defined (__STDC__) && __STDC__
+ const char *name;
+#else
+ char *name;
+#endif
+ /* has_arg can't be an enum because some compilers complain about
+ type mismatches in all the code that assumes it is an int. */
+ int has_arg;
+ int *flag;
+ int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'. */
+
+#define no_argument 0
+#define required_argument 1
+#define optional_argument 2
+
+#if defined (__STDC__) && __STDC__
+#ifdef __GNU_LIBRARY__
+/* Many other libraries have conflicting prototypes for getopt, with
+ differences in the consts, in stdlib.h. To avoid compilation
+ errors, only prototype getopt for the GNU C library. */
+extern int getopt (int argc, char *const *argv, const char *shortopts);
+#else /* not __GNU_LIBRARY__ */
+extern int getopt ();
+#endif /* __GNU_LIBRARY__ */
+extern int getopt_long (int argc, char *const *argv, const char *shortopts,
+ const struct option *longopts, int *longind);
+extern int getopt_long_only (int argc, char *const *argv,
+ const char *shortopts,
+ const struct option *longopts, int *longind);
+
+/* Internal only. Users should not call this directly. */
+extern int _getopt_internal (int argc, char *const *argv,
+ const char *shortopts,
+ const struct option *longopts, int *longind,
+ int long_only);
+#else /* not __STDC__ */
+extern int getopt ();
+extern int getopt_long ();
+extern int getopt_long_only ();
+
+extern int _getopt_internal ();
+#endif /* __STDC__ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* getopt.h */
diff --git a/getopt1.c b/getopt1.c
new file mode 100644
index 0000000..0e38b2f
--- /dev/null
+++ b/getopt1.c
@@ -0,0 +1,176 @@
+/* getopt_long and getopt_long_only entry points for GNU getopt.
+Copyright (C) 1987-1994, 1996-2016 Free Software Foundation, Inc.
+
+NOTE: The canonical source of this file is maintained with the GNU C Library.
+Bugs can be reported to bug-glibc@gnu.org.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "getopt.h"
+
+#if !defined __STDC__ || !__STDC__
+/* This is a separate conditional since some stdc systems
+ reject `defined (const)'. */
+#ifndef const
+#define const
+#endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
+#include <gnu-versions.h>
+#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+#define ELIDE_CODE
+#endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+ to get __GNU_LIBRARY__ defined. */
+#ifdef __GNU_LIBRARY__
+#include <stdlib.h>
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+int
+getopt_long (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index)
+{
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+}
+
+/* Like getopt_long, but '-' as well as '--' can indicate a long option.
+ If an option that starts with '-' (not '--') doesn't match a long option,
+ but does match a short option, it is parsed as a short option
+ instead. */
+
+int
+getopt_long_only (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index)
+{
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
+}
+
+
+#endif /* Not ELIDE_CODE. */
+
+#ifdef TEST
+
+#include <stdio.h>
+
+int
+main (int argc, char **argv)
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+ int option_index = 0;
+ static struct option long_options[] =
+ {
+ {"add", 1, 0, 0},
+ {"append", 0, 0, 0},
+ {"delete", 1, 0, 0},
+ {"verbose", 0, 0, 0},
+ {"create", 0, 0, 0},
+ {"file", 1, 0, 0},
+ {0, 0, 0, 0}
+ };
+
+ c = getopt_long (argc, argv, "abc:d:0123456789",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case 0:
+ printf ("option %s", long_options[option_index].name);
+ if (optarg)
+ printf (" with arg %s", optarg);
+ printf ("\n");
+ break;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value '%s'\n", optarg);
+ break;
+
+ case 'd':
+ printf ("option d with value '%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
diff --git a/gettext.h b/gettext.h
new file mode 100644
index 0000000..c48ffa0
--- /dev/null
+++ b/gettext.h
@@ -0,0 +1,57 @@
+/* Convenience header for conditional use of GNU <libintl.h>.
+Copyright (C) 1995-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _LIBGETTEXT_H
+#define _LIBGETTEXT_H 1
+
+/* NLS can be disabled through the configure --disable-nls option. */
+#if ENABLE_NLS
+
+/* Get declarations of GNU message catalog functions. */
+# include <libintl.h>
+
+#else
+
+/* Disabled NLS.
+ The casts to 'const char *' serve the purpose of producing warnings
+ for invalid uses of the value returned from these functions.
+ On pre-ANSI systems without 'const', the config.h file is supposed to
+ contain "#define const". */
+# define gettext(Msgid) ((const char *) (Msgid))
+# define dgettext(Domainname, Msgid) ((const char *) (Msgid))
+# define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
+# define ngettext(Msgid1, Msgid2, N) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dngettext(Domainname, Msgid1, Msgid2, N) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define textdomain(Domainname) ((const char *) (Domainname))
+# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
+# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
+
+#endif
+
+/* A pseudo function call that serves as a marker for the automated
+ extraction of messages, but does not call gettext(). The run-time
+ translation is done at a different place in the code.
+ The argument, String, should be a literal string. Concatenated strings
+ and other string expressions won't work.
+ The macro's expansion is not parenthesized, so that it is suitable as
+ initializer for static 'char[]' or 'const char[]' variables. */
+#define gettext_noop(String) String
+
+#endif /* _LIBGETTEXT_H */
diff --git a/glob/COPYING.LIB b/glob/COPYING.LIB
new file mode 100644
index 0000000..bbe3fe1
--- /dev/null
+++ b/glob/COPYING.LIB
@@ -0,0 +1,481 @@
+ GNU LIBRARY GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1991 Free Software Foundation, Inc.
+ 675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the library GPL. It is
+ numbered 2 because it goes with version 2 of the ordinary GPL.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+ This license, the Library General Public License, applies to some
+specially designated Free Software Foundation software, and to any
+other libraries whose authors decide to use it. You can use it for
+your libraries, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if
+you distribute copies of the library, or if you modify it.
+
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+or for a fee, you must give the recipients all the rights that we gave
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+ Our method of protecting your rights has two steps: (1) copyright
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+
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+library. If the library is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original
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+we have made it clear that any patent must be licensed for everyone's
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+ library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+ <signature of Ty Coon>, 1 April 1990
+ Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/glob/ChangeLog b/glob/ChangeLog
new file mode 100644
index 0000000..c543c85
--- /dev/null
+++ b/glob/ChangeLog
@@ -0,0 +1,191 @@
+2013-10-20 Paul Smith <psmith@gnu.org>
+
+ * glob.c (glob): Cherry-pick a471e96a5352a5f0bde6d32dd36d33524811a2b1
+ from git://sourceware.org/git/glibc.git to fix SV 18123,
+ https://sourceware.org/bugzilla/show_bug.cgi?id=10278
+
+2008-09-28 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * glob.c (my_realloc) [__DJGPP__]: Don't define, and don't
+ redefine realloc to call it, since the DJGPP's realloc handles
+ NULL pointers correctly.
+
+2007-12-22 Juan Manuel Guerrero <juan.guerrero@gmx.de> (tiny change)
+
+ * glob.c [__GNU_LIBRARY__ && __DJGPP__]: Add a realloc
+ declaration that matches the one in the DJGPP libc.
+
+2006-02-24 Eli Zaretskii <eliz@gnu.org>
+
+ * glob.c (my_malloc) [WINDOWS32]: Provide a full ISO C prototype,
+ to avoid compiler warnings.
+
+2005-06-25 Paul D. Smith <psmith@gnu.org>
+
+ * fnmatch.h, glob.h [WINDOWS32]: Fix ifdefs in headers.
+ Fixes Savannah bug #13477.
+
+2005-03-11 Paul D. Smith <psmith@gnu.org>
+
+ * glob.c (glob_in_dir): Change FNM_CASEFOLD to be enabled if
+ HAVE_CASE_INSENSITIVE_FS is defined.
+
+2003-01-30 Paul D. Smith <psmith@gnu.org>
+
+ * glob.h: Patch for FreeBSD by Mike Barcroft <mike@freebsd.org>
+ Reported by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>. On
+ FreeBSD, declare __size_t to simply size_t.
+
+2002-04-22 Paul D. Smith <psmith@gnu.org>
+
+ * Makefile.am: Use automake 1.6.
+ Use new automake condition USE_LOCAL_GLOB to decide whether or not
+ to build the local GNU glob library or use the system one.
+
+1999-09-12 Paul D. Smith <psmith@gnu.org>
+
+ * fnmatch.c: Last GLIBC version wouldn't compile outside of GLIBC
+ (undefined reference to internal_function). Update to the latest
+ version
+
+1999-09-11 Paul Eggert <eggert@twinsun.com>
+
+ * glob.h (glob): If #defining to glob64, do this before
+ declaring it, so that all declarations and uses match, and
+ do not declare glob64, to avoid a declaration clash.
+ (globfree): Likewise with globfree64.
+
+1999-09-08 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * glob.c (prefix_array) [__MSDOS__,WINDOWS32]: Keep the trailing
+ slash unless DIRNAME is just "x:/".
+
+1999-09-06 Paul D. Smith <psmith@gnu.org>
+
+ * fnmatch.c: Update to latest version from GLIBC.
+
+1999-07-21 Paul D. Smith <psmith@gnu.org>
+
+ * glob.c, glob.h, fnmatch.c, fnmatch.h: Update to latest version
+ from GLIBC.
+
+ * fnmatch.c (internal_fnmatch): Use K&R definition syntax, not ANSI.
+ (__strchrnul): This won't exist outside GLIBC, so create one.
+
+ * glob.c: Move getlogin{,_r} prototypes below glob.h to get __P()
+ macro.
+
+1998-08-05 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Remove; configuration for glob is handled by the
+ make configure.in.
+
+1998-07-29 Paul D. Smith <psmith@gnu.org>
+
+ * glob.c, fnmatch.c: New versions from the GLIBC folks (Ulrich
+ Drepper). Fixes a bug reported by Eli Zaretski. Integrates
+ DOS/Windows32 support.
+
+1998-07-27 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * glob.c (glob): Cast away const on assignment of pattern to dirname.
+ Cast the return type of __alloca() for traditional C compilers.
+
+1998-07-23 Paul D. Smith <psmith@gnu.org>
+
+ * glob.c, fnmatch.c: New versions of these files from the GLIBC
+ folks (Ulrich Drepper). Had to re-integrate some DOS/Windows
+ code.
+
+1998-07-10 Paul D. Smith <psmith@gnu.org>
+
+ * glob.c (glob_in_dir): If no meta chars exist in PATTERN and
+ GLOB_NOCHECK is present, don't look for the file--whether it's
+ found or not, we'll always return it, so why bother searching?
+
+ Also, if we are searching and there are no meta chars, don't
+ bother trying fnmatch() if the strcmp() fails.
+
+1998-05-30 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * glob.c (glob) [__MSDOS__, WINDOWS32]: Compute the directory and
+ filename parts of the pattern correctly when it includes a drive
+ spec. Disallow wildcards in the drive spec. Prevent recursion
+ when dirname is of the form "d:/" or "d:".
+ (prefix_array) [__MSDOS__, WINDOWS32]: Don't append a slash to
+ "d:/" and "d:".
+
+1998-05-13 Paul D. Smith <psmith@gnu.org>
+
+ * SMakefile, Makefile.ami, glob.c, glob.h, fnmatch.c: Updated from
+ the latest glibc version.
+
+1998-04-17 Paul D. Smith <psmith@gnu.org>
+
+ * configure.in: Create a config.h file instead of setting things
+ on the compile line. This is because when build.sh runs it merely
+ passes -DHAVE_CONFIG_H to the glob files, just as it does to the
+ make files.
+ * config.h.in: Created by autoheader.
+
+Tue Aug 12 10:52:34 1997 Paul D. Smith <psmith@baynetworks.com>
+
+ * configure.in: Require autoconf 2.12.
+
+ * glob: Updates from latest GNU libc glob code.
+
+ * glob.c,glob.h,fnmatch.h: Change all WIN32 references to WINDOWS32.
+
+ * glob.h: OSF4 defines macros in such a way that GLOB_ALTDIRFUNC
+ is not defined. Added a test to the #if which defines it if
+ _GNU_SOURCE is defined; that's set by both glob.c and GNU make.
+
+ * glob.c: SunOS4 w/ cc needs #include <stdio.h>, since assert.h
+ requires stderr but doesn't include stdio.h :-/.
+ (next_brace_sub): De-protoize function definition.
+ (glob): Cast __alloca(); on SunOS4 it uses the default return type
+ of int.
+ (glob): Irix defines getlogin_r() to return a char*; move the
+ extern for that into the _LIBC area since it isn't used except in
+ LIBC anyway. Likewise, move extern getlogin() into the "else".
+
+Sat Jul 20 21:55:31 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ Win32 hacks from <Rob_Tulloh@tivoli.com>.
+ * posix/glob.c [WIN32]: Don't include <pwd.h>; don't use d_ino;
+ use void * for my_realloc; include <malloc.h> for alloca.
+ (glob) [WIN32]: Use "c:/users/default" for ~ if no HOME variable.
+ * posix/fnmatch.h [WIN32]: Use prototypes even if [!__STDC__].
+ * posix/glob.h: Likewise.
+
+Fri Jul 19 16:56:41 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * posix/glob.h [!_AMIGA && !VMS]: Check this instead of just [!_AMIGA]
+ for `struct stat;' forward decl.
+
+Sat Jun 22 10:44:09 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * posix/glob.c: Include <alloca.h> only [HAVE_ALLOCA_H], not [sparc].
+
+Fri Jun 21 00:27:51 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * posix/fnmatch.c (fnmatch): Fix \*[*?]+ case to increment name ptr
+ only for ?s, not for *s. Fix from Chet Ramey.
+
+
+Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
+Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/glob/Makefile.am b/glob/Makefile.am
new file mode 100644
index 0000000..93fd60a
--- /dev/null
+++ b/glob/Makefile.am
@@ -0,0 +1,30 @@
+# -*-Makefile-*-, or close enough
+# Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+AUTOMAKE_OPTIONS = foreign
+
+# Only build the library when the system doesn't already have GNU glob.
+if USE_LOCAL_GLOB
+ noinst_LIBRARIES = libglob.a
+endif
+
+libglob_a_SOURCES = glob.c glob.h fnmatch.c fnmatch.h
+
+
+EXTRA_DIST = COPYING.LIB Makefile.ami SCOPTIONS SMakefile \
+ configure.bat
diff --git a/glob/Makefile.ami b/glob/Makefile.ami
new file mode 100644
index 0000000..3fbf7e5
--- /dev/null
+++ b/glob/Makefile.ami
@@ -0,0 +1,67 @@
+# Makefile for standalone libglob.a (fnmatch, glob). -*-Makefile-*-
+# Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Ultrix 2.2 make doesn't expand the value of VPATH.
+VPATH = /glob/
+# This must repeat the value, because configure will remove `VPATH = .'.
+srcdir = /glob/
+
+CC = sc
+RM = delete
+CPPFLAGS =
+CFLAGS =
+
+# Information determined by configure.
+DEFS = Define HAVE_HEADER_STDC Define HAVE_UNISTD_H Define HAVE_STRING_H \
+ Define HAVE_DIRENT_H
+
+# How to invoke ar.
+AR = join
+ARFLAGS = as
+
+# How to invoke ranlib.
+RANLIB = ;
+
+.PHONY: all
+all: glob.lib
+
+glob.lib : glob.o fnmatch.o
+ $(AR) $(ARFLAGS) $@ glob.o fnmatch.o
+ $(RANLIB) $@
+
+# For some reason, Unix make wants the dependencies on the source files.
+# Otherwise it refuses to use an implicit rule!
+# And, get this: it doesn't work to use $(srcdir)foo.c!!
+glob.o: $(srcdir)glob.h $(srcdir)fnmatch.h glob.c
+fnmatch.o: $(srcdir)fnmatch.h fnmatch.c
+
+OUTPUT_OPTION =
+.c.o:
+ $(CC) IDir "" \
+ $(DEFS) $(CPPFLAGS) $(CFLAGS) $< $(OUTPUT_OPTION)
+
+.PHONY: clean realclean glob-clean glob-realclean distclean
+clean glob-clean:
+ -$(RM) glob.lib "#?.o" core
+distclean glob-realclean: clean
+ -$(RM) TAGS tags Makefile config.status config.h config.log
+realcean: distclean
+
+# For inside the C library.
+glob.tar glob.tar.Z:
+ $(MAKE) -C .. $@
diff --git a/glob/SCOPTIONS b/glob/SCOPTIONS
new file mode 100644
index 0000000..f89daae
--- /dev/null
+++ b/glob/SCOPTIONS
@@ -0,0 +1,13 @@
+ERRORREXX
+OPTIMIZE
+NOVERSION
+OPTIMIZERTIME
+OPTIMIZERALIAS
+DEFINE INCLUDEDIR="include:"
+DEFINE LIBDIR="lib:"
+DEFINE NO_ALLOCA
+DEFINE NO_FLOAT
+DEFINE NO_ARCHIVES
+IGNORE=161
+IGNORE=100
+STARTUP=cres
diff --git a/glob/SMakefile b/glob/SMakefile
new file mode 100644
index 0000000..0476a15
--- /dev/null
+++ b/glob/SMakefile
@@ -0,0 +1,67 @@
+# Makefile for standalone distribution of libglob.a (fnmatch, glob).
+# Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Ultrix 2.2 make doesn't expand the value of VPATH.
+VPATH = /glob/
+# This must repeat the value, because configure will remove `VPATH = .'.
+srcdir = /glob/
+
+CC = sc
+CPPFLAGS =
+CFLAGS =
+MAKE = smake
+RM = delete
+
+# Information determined by configure.
+DEFS = Define HAVE_HEADER_STDC Define HAVE_UNISTD_H Define HAVE_STRING_H \
+ Define HAVE_DIRENT_H
+
+# How to invoke ar.
+AR = join
+ARFLAGS = as
+
+# How to invoke ranlib.
+RANLIB = ;
+
+.PHONY: all
+all: glob.lib
+
+glob.lib : glob.o fnmatch.o
+ $(AR) $(ARFLAGS) $@ glob.o fnmatch.o
+ $(RANLIB) $@
+
+# For some reason, Unix make wants the dependencies on the source files.
+# Otherwise it refuses to use an implicit rule!
+# And, get this: it doesn't work to use $(srcdir)foo.c!!
+glob.o: $(srcdir)glob.h $(srcdir)fnmatch.h glob.c
+fnmatch.o: $(srcdir)fnmatch.h fnmatch.c
+
+.c.o:
+ $(CC) IDir "" \
+ $(DEFS) $(CPPFLAGS) $(CFLAGS) $< $(OUTPUT_OPTION)
+
+.PHONY: clean realclean glob-clean glob-realclean distclean
+clean glob-clean:
+ -$(RM) -f glob.lib *.o core
+distclean glob-realclean: clean
+ -$(RM) -f TAGS tags Makefile config.status config.h config.log
+realcean: distclean
+
+# For inside the C library.
+glob.tar glob.tar.Z:
+ $(MAKE) -C .. $@
diff --git a/glob/configure.bat b/glob/configure.bat
new file mode 100644
index 0000000..672d733
--- /dev/null
+++ b/glob/configure.bat
@@ -0,0 +1,43 @@
+@echo off
+rem Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+rem 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
+
+echo Configuring glob for DJGPP
+rem This batch file assumes a unix-type "sed" program
+
+echo # Makefile generated by "configure.bat"> Makefile
+
+if exist config.sed del config.sed
+
+echo "s/@srcdir@/./ ">> config.sed
+echo "s/@CC@/gcc/ ">> config.sed
+echo "s/@CFLAGS@/-O2 -g/ ">> config.sed
+echo "s/@CPPFLAGS@/-DHAVE_CONFIG_H -I../ ">> config.sed
+echo "s/@AR@/ar/ ">> config.sed
+echo "s/@RANLIB@/ranlib/ ">> config.sed
+echo "s/@LDFLAGS@// ">> config.sed
+echo "s/@DEFS@// ">> config.sed
+echo "s/@ALLOCA@// ">> config.sed
+echo "s/@LIBS@// ">> config.sed
+echo "s/@LIBOBJS@// ">> config.sed
+echo "s/^Makefile *:/_Makefile:/ ">> config.sed
+echo "s/^config.h *:/_config.h:/ ">> config.sed
+
+sed -e "s/^\"//" -e "s/\"$//" -e "s/[ ]*$//" config.sed > config2.sed
+sed -f config2.sed Makefile.in >> Makefile
+del config.sed
+del config2.sed
diff --git a/glob/fnmatch.c b/glob/fnmatch.c
new file mode 100644
index 0000000..4da8c5f
--- /dev/null
+++ b/glob/fnmatch.c
@@ -0,0 +1,489 @@
+/* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999 Free Software
+Foundation, Inc.
+This file is part of the GNU C Library.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; see the file COPYING.LIB. If not, write to the Free
+Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Enable GNU extensions in fnmatch.h. */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+#include <errno.h>
+#include <fnmatch.h>
+#include <ctype.h>
+
+#if HAVE_STRING_H || defined _LIBC
+# include <string.h>
+#else
+# include <strings.h>
+#endif
+
+#if defined STDC_HEADERS || defined _LIBC
+# include <stdlib.h>
+#endif
+
+/* For platform which support the ISO C amendement 1 functionality we
+ support user defined character classes. */
+#if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
+# include <wchar.h>
+# include <wctype.h>
+#endif
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#if defined _LIBC || !defined __GNU_LIBRARY__
+
+
+# if defined STDC_HEADERS || !defined isascii
+# define ISASCII(c) 1
+# else
+# define ISASCII(c) isascii(c)
+# endif
+
+# ifdef isblank
+# define ISBLANK(c) (ISASCII (c) && isblank (c))
+# else
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+# endif
+# ifdef isgraph
+# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
+# else
+# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
+# endif
+
+# define ISPRINT(c) (ISASCII (c) && isprint (c))
+# define ISDIGIT(c) (ISASCII (c) && isdigit (c))
+# define ISALNUM(c) (ISASCII (c) && isalnum (c))
+# define ISALPHA(c) (ISASCII (c) && isalpha (c))
+# define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
+# define ISLOWER(c) (ISASCII (c) && islower (c))
+# define ISPUNCT(c) (ISASCII (c) && ispunct (c))
+# define ISSPACE(c) (ISASCII (c) && isspace (c))
+# define ISUPPER(c) (ISASCII (c) && isupper (c))
+# define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
+
+# define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
+
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+/* The GNU C library provides support for user-defined character classes
+ and the functions from ISO C amendement 1. */
+# ifdef CHARCLASS_NAME_MAX
+# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
+# else
+/* This shouldn't happen but some implementation might still have this
+ problem. Use a reasonable default value. */
+# define CHAR_CLASS_MAX_LENGTH 256
+# endif
+
+# ifdef _LIBC
+# define IS_CHAR_CLASS(string) __wctype (string)
+# else
+# define IS_CHAR_CLASS(string) wctype (string)
+# endif
+# else
+# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
+
+# define IS_CHAR_CLASS(string) \
+ (STREQ (string, "alpha") || STREQ (string, "upper") \
+ || STREQ (string, "lower") || STREQ (string, "digit") \
+ || STREQ (string, "alnum") || STREQ (string, "xdigit") \
+ || STREQ (string, "space") || STREQ (string, "print") \
+ || STREQ (string, "punct") || STREQ (string, "graph") \
+ || STREQ (string, "cntrl") || STREQ (string, "blank"))
+# endif
+
+/* Avoid depending on library functions or files
+ whose names are inconsistent. */
+
+# if !defined _LIBC && !defined getenv
+extern char *getenv ();
+# endif
+
+# ifndef errno
+extern int errno;
+# endif
+
+/* This function doesn't exist on most systems. */
+
+# if !defined HAVE___STRCHRNUL && !defined _LIBC
+static char *
+__strchrnul (s, c)
+ const char *s;
+ int c;
+{
+ char *result = strchr (s, c);
+ if (result == NULL)
+ result = strchr (s, '\0');
+ return result;
+}
+# endif
+
+# ifndef internal_function
+/* Inside GNU libc we mark some function in a special way. In other
+ environments simply ignore the marking. */
+# define internal_function
+# endif
+
+/* Match STRING against the filename pattern PATTERN, returning zero if
+ it matches, nonzero if not. */
+static int internal_fnmatch __P ((const char *pattern, const char *string,
+ int no_leading_period, int flags))
+ internal_function;
+static int
+internal_function
+internal_fnmatch (pattern, string, no_leading_period, flags)
+ const char *pattern;
+ const char *string;
+ int no_leading_period;
+ int flags;
+{
+ register const char *p = pattern, *n = string;
+ register unsigned char c;
+
+/* Note that this evaluates C many times. */
+# ifdef _LIBC
+# define FOLD(c) ((flags & FNM_CASEFOLD) ? tolower (c) : (c))
+# else
+# define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c))
+# endif
+
+ while ((c = *p++) != '\0')
+ {
+ c = FOLD (c);
+
+ switch (c)
+ {
+ case '?':
+ if (*n == '\0')
+ return FNM_NOMATCH;
+ else if (*n == '/' && (flags & FNM_FILE_NAME))
+ return FNM_NOMATCH;
+ else if (*n == '.' && no_leading_period
+ && (n == string
+ || (n[-1] == '/' && (flags & FNM_FILE_NAME))))
+ return FNM_NOMATCH;
+ break;
+
+ case '\\':
+ if (!(flags & FNM_NOESCAPE))
+ {
+ c = *p++;
+ if (c == '\0')
+ /* Trailing \ loses. */
+ return FNM_NOMATCH;
+ c = FOLD (c);
+ }
+ if (FOLD ((unsigned char) *n) != c)
+ return FNM_NOMATCH;
+ break;
+
+ case '*':
+ if (*n == '.' && no_leading_period
+ && (n == string
+ || (n[-1] == '/' && (flags & FNM_FILE_NAME))))
+ return FNM_NOMATCH;
+
+ for (c = *p++; c == '?' || c == '*'; c = *p++)
+ {
+ if (*n == '/' && (flags & FNM_FILE_NAME))
+ /* A slash does not match a wildcard under FNM_FILE_NAME. */
+ return FNM_NOMATCH;
+ else if (c == '?')
+ {
+ /* A ? needs to match one character. */
+ if (*n == '\0')
+ /* There isn't another character; no match. */
+ return FNM_NOMATCH;
+ else
+ /* One character of the string is consumed in matching
+ this ? wildcard, so *??? won't match if there are
+ less than three characters. */
+ ++n;
+ }
+ }
+
+ if (c == '\0')
+ /* The wildcard(s) is/are the last element of the pattern.
+ If the name is a file name and contains another slash
+ this does mean it cannot match. */
+ return ((flags & FNM_FILE_NAME) && strchr (n, '/') != NULL
+ ? FNM_NOMATCH : 0);
+ else
+ {
+ const char *endp;
+
+ endp = __strchrnul (n, (flags & FNM_FILE_NAME) ? '/' : '\0');
+
+ if (c == '[')
+ {
+ int flags2 = ((flags & FNM_FILE_NAME)
+ ? flags : (flags & ~FNM_PERIOD));
+
+ for (--p; n < endp; ++n)
+ if (internal_fnmatch (p, n,
+ (no_leading_period
+ && (n == string
+ || (n[-1] == '/'
+ && (flags
+ & FNM_FILE_NAME)))),
+ flags2)
+ == 0)
+ return 0;
+ }
+ else if (c == '/' && (flags & FNM_FILE_NAME))
+ {
+ while (*n != '\0' && *n != '/')
+ ++n;
+ if (*n == '/'
+ && (internal_fnmatch (p, n + 1, flags & FNM_PERIOD,
+ flags) == 0))
+ return 0;
+ }
+ else
+ {
+ int flags2 = ((flags & FNM_FILE_NAME)
+ ? flags : (flags & ~FNM_PERIOD));
+
+ if (c == '\\' && !(flags & FNM_NOESCAPE))
+ c = *p;
+ c = FOLD (c);
+ for (--p; n < endp; ++n)
+ if (FOLD ((unsigned char) *n) == c
+ && (internal_fnmatch (p, n,
+ (no_leading_period
+ && (n == string
+ || (n[-1] == '/'
+ && (flags
+ & FNM_FILE_NAME)))),
+ flags2) == 0))
+ return 0;
+ }
+ }
+
+ /* If we come here no match is possible with the wildcard. */
+ return FNM_NOMATCH;
+
+ case '[':
+ {
+ /* Nonzero if the sense of the character class is inverted. */
+ static int posixly_correct;
+ register int not;
+ char cold;
+
+ if (posixly_correct == 0)
+ posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
+
+ if (*n == '\0')
+ return FNM_NOMATCH;
+
+ if (*n == '.' && no_leading_period && (n == string
+ || (n[-1] == '/'
+ && (flags
+ & FNM_FILE_NAME))))
+ return FNM_NOMATCH;
+
+ if (*n == '/' && (flags & FNM_FILE_NAME))
+ /* `/' cannot be matched. */
+ return FNM_NOMATCH;
+
+ not = (*p == '!' || (posixly_correct < 0 && *p == '^'));
+ if (not)
+ ++p;
+
+ c = *p++;
+ for (;;)
+ {
+ unsigned char fn = FOLD ((unsigned char) *n);
+
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ {
+ if (*p == '\0')
+ return FNM_NOMATCH;
+ c = FOLD ((unsigned char) *p);
+ ++p;
+
+ if (c == fn)
+ goto matched;
+ }
+ else if (c == '[' && *p == ':')
+ {
+ /* Leave room for the null. */
+ char str[CHAR_CLASS_MAX_LENGTH + 1];
+ size_t c1 = 0;
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+ wctype_t wt;
+# endif
+ const char *startp = p;
+
+ for (;;)
+ {
+ if (c1 == CHAR_CLASS_MAX_LENGTH)
+ /* The name is too long and therefore the pattern
+ is ill-formed. */
+ return FNM_NOMATCH;
+
+ c = *++p;
+ if (c == ':' && p[1] == ']')
+ {
+ p += 2;
+ break;
+ }
+ if (c < 'a' || c >= 'z')
+ {
+ /* This cannot possibly be a character class name.
+ Match it as a normal range. */
+ p = startp;
+ c = '[';
+ goto normal_bracket;
+ }
+ str[c1++] = c;
+ }
+ str[c1] = '\0';
+
+# if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H)
+ wt = IS_CHAR_CLASS (str);
+ if (wt == 0)
+ /* Invalid character class name. */
+ return FNM_NOMATCH;
+
+ if (__iswctype (__btowc ((unsigned char) *n), wt))
+ goto matched;
+# else
+ if ((STREQ (str, "alnum") && ISALNUM ((unsigned char) *n))
+ || (STREQ (str, "alpha") && ISALPHA ((unsigned char) *n))
+ || (STREQ (str, "blank") && ISBLANK ((unsigned char) *n))
+ || (STREQ (str, "cntrl") && ISCNTRL ((unsigned char) *n))
+ || (STREQ (str, "digit") && ISDIGIT ((unsigned char) *n))
+ || (STREQ (str, "graph") && ISGRAPH ((unsigned char) *n))
+ || (STREQ (str, "lower") && ISLOWER ((unsigned char) *n))
+ || (STREQ (str, "print") && ISPRINT ((unsigned char) *n))
+ || (STREQ (str, "punct") && ISPUNCT ((unsigned char) *n))
+ || (STREQ (str, "space") && ISSPACE ((unsigned char) *n))
+ || (STREQ (str, "upper") && ISUPPER ((unsigned char) *n))
+ || (STREQ (str, "xdigit") && ISXDIGIT ((unsigned char) *n)))
+ goto matched;
+# endif
+ }
+ else if (c == '\0')
+ /* [ (unterminated) loses. */
+ return FNM_NOMATCH;
+ else
+ {
+ normal_bracket:
+ if (FOLD (c) == fn)
+ goto matched;
+
+ cold = c;
+ c = *p++;
+
+ if (c == '-' && *p != ']')
+ {
+ /* It is a range. */
+ unsigned char cend = *p++;
+ if (!(flags & FNM_NOESCAPE) && cend == '\\')
+ cend = *p++;
+ if (cend == '\0')
+ return FNM_NOMATCH;
+
+ if (cold <= fn && fn <= FOLD (cend))
+ goto matched;
+
+ c = *p++;
+ }
+ }
+
+ if (c == ']')
+ break;
+ }
+
+ if (!not)
+ return FNM_NOMATCH;
+ break;
+
+ matched:
+ /* Skip the rest of the [...] that already matched. */
+ while (c != ']')
+ {
+ if (c == '\0')
+ /* [... (unterminated) loses. */
+ return FNM_NOMATCH;
+
+ c = *p++;
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ {
+ if (*p == '\0')
+ return FNM_NOMATCH;
+ /* XXX 1003.2d11 is unclear if this is right. */
+ ++p;
+ }
+ else if (c == '[' && *p == ':')
+ {
+ do
+ if (*++p == '\0')
+ return FNM_NOMATCH;
+ while (*p != ':' || p[1] == ']');
+ p += 2;
+ c = *p;
+ }
+ }
+ if (not)
+ return FNM_NOMATCH;
+ }
+ break;
+
+ default:
+ if (c != FOLD ((unsigned char) *n))
+ return FNM_NOMATCH;
+ }
+
+ ++n;
+ }
+
+ if (*n == '\0')
+ return 0;
+
+ if ((flags & FNM_LEADING_DIR) && *n == '/')
+ /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
+ return 0;
+
+ return FNM_NOMATCH;
+
+# undef FOLD
+}
+
+
+int
+fnmatch (pattern, string, flags)
+ const char *pattern;
+ const char *string;
+ int flags;
+{
+ return internal_fnmatch (pattern, string, flags & FNM_PERIOD, flags);
+}
+
+#endif /* _LIBC or not __GNU_LIBRARY__. */
diff --git a/glob/fnmatch.h b/glob/fnmatch.h
new file mode 100644
index 0000000..a788c8e
--- /dev/null
+++ b/glob/fnmatch.h
@@ -0,0 +1,85 @@
+/* Copyright (C) 1991, 1992, 1993, 1996, 1997, 1998, 1999 Free Software
+Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; see the file COPYING.LIB. If not, write to the Free
+Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA. */
+
+#ifndef _FNMATCH_H
+#define _FNMATCH_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined __cplusplus || (defined __STDC__ && __STDC__) || defined WINDOWS32
+# if !defined __GLIBC__
+# undef __P
+# define __P(protos) protos
+# endif
+#else /* Not C++ or ANSI C. */
+# undef __P
+# define __P(protos) ()
+/* We can get away without defining `const' here only because in this file
+ it is used only inside the prototype for `fnmatch', which is elided in
+ non-ANSI C where `const' is problematical. */
+#endif /* C++ or ANSI C. */
+
+#ifndef const
+# if (defined __STDC__ && __STDC__) || defined __cplusplus || defined WINDOWS32
+# define __const const
+# else
+# define __const
+# endif
+#endif
+
+/* We #undef these before defining them because some losing systems
+ (HP-UX A.08.07 for example) define these in <unistd.h>. */
+#undef FNM_PATHNAME
+#undef FNM_NOESCAPE
+#undef FNM_PERIOD
+
+/* Bits set in the FLAGS argument to `fnmatch'. */
+#define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */
+#define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */
+#define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */
+
+#if !defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined _GNU_SOURCE
+# define FNM_FILE_NAME FNM_PATHNAME /* Preferred GNU name. */
+# define FNM_LEADING_DIR (1 << 3) /* Ignore `/...' after a match. */
+# define FNM_CASEFOLD (1 << 4) /* Compare without regard to case. */
+#endif
+
+/* Value returned by `fnmatch' if STRING does not match PATTERN. */
+#define FNM_NOMATCH 1
+
+/* This value is returned if the implementation does not support
+ `fnmatch'. Since this is not the case here it will never be
+ returned but the conformance test suites still require the symbol
+ to be defined. */
+#ifdef _XOPEN_SOURCE
+# define FNM_NOSYS (-1)
+#endif
+
+/* Match NAME against the filename pattern PATTERN,
+ returning zero if it matches, FNM_NOMATCH if not. */
+extern int fnmatch __P ((__const char *__pattern, __const char *__name,
+ int __flags));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* fnmatch.h */
diff --git a/glob/glob.c b/glob/glob.c
new file mode 100644
index 0000000..f3911bc
--- /dev/null
+++ b/glob/glob.c
@@ -0,0 +1,1432 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 Free
+Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; see the file COPYING.LIB. If not, write to the Free
+Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA. */
+
+/* AIX requires this to be the first thing in the file. */
+#if defined _AIX && !defined __GNUC__
+ #pragma alloca
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Enable GNU extensions in glob.h. */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+/* Outcomment the following line for production quality code. */
+/* #define NDEBUG 1 */
+#include <assert.h>
+
+#include <stdio.h> /* Needed on stupid SunOS for assert. */
+
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#define GLOB_INTERFACE_VERSION 1
+#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
+# include <gnu-versions.h>
+# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
+# define ELIDE_CODE
+# endif
+#endif
+
+#ifndef ELIDE_CODE
+
+#if defined STDC_HEADERS || defined __GNU_LIBRARY__
+# include <stddef.h>
+#endif
+
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
+# ifndef POSIX
+# ifdef _POSIX_VERSION
+# define POSIX
+# endif
+# endif
+#endif
+
+#if !defined _AMIGA && !defined VMS && !defined WINDOWS32
+# include <pwd.h>
+#endif
+
+#if !defined __GNU_LIBRARY__ && !defined STDC_HEADERS
+extern int errno;
+#endif
+#ifndef __set_errno
+# define __set_errno(val) errno = (val)
+#endif
+
+#ifndef NULL
+# define NULL 0
+#endif
+
+
+#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# endif
+# ifdef HAVE_VMSDIR_H
+# include "vmsdir.h"
+# endif /* HAVE_VMSDIR_H */
+#endif
+
+
+/* In GNU systems, <dirent.h> defines this macro for us. */
+#ifdef _D_NAMLEN
+# undef NAMLEN
+# define NAMLEN(d) _D_NAMLEN(d)
+#endif
+
+/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
+ if the `d_type' member for `struct dirent' is available. */
+#ifdef _DIRENT_HAVE_D_TYPE
+# define HAVE_D_TYPE 1
+#endif
+
+
+#if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
+/* Posix does not require that the d_ino field be present, and some
+ systems do not provide it. */
+# define REAL_DIR_ENTRY(dp) 1
+#else
+# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
+#endif /* POSIX */
+
+#if defined STDC_HEADERS || defined __GNU_LIBRARY__
+# include <stdlib.h>
+# include <string.h>
+# define ANSI_STRING
+#else /* No standard headers. */
+
+extern char *getenv ();
+
+# ifdef HAVE_STRING_H
+# include <string.h>
+# define ANSI_STRING
+# else
+# include <strings.h>
+# endif
+# ifdef HAVE_MEMORY_H
+# include <memory.h>
+# endif
+
+extern char *malloc (), *realloc ();
+extern void free ();
+
+extern void qsort ();
+extern void abort (), exit ();
+
+#endif /* Standard headers. */
+
+#ifndef ANSI_STRING
+
+# ifndef bzero
+extern void bzero ();
+# endif
+# ifndef bcopy
+extern void bcopy ();
+# endif
+
+# define memcpy(d, s, n) bcopy ((s), (d), (n))
+# define strrchr rindex
+/* memset is only used for zero here, but let's be paranoid. */
+# define memset(s, better_be_zero, n) \
+ ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
+#endif /* Not ANSI_STRING. */
+
+#if !defined HAVE_STRCOLL && !defined _LIBC
+# define strcoll strcmp
+#endif
+
+#if !defined HAVE_MEMPCPY && __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1
+# define HAVE_MEMPCPY 1
+# undef mempcpy
+# define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len)
+#endif
+
+#if !defined __GNU_LIBRARY__ && !defined __DJGPP__
+# ifdef __GNUC__
+__inline
+# endif
+# ifndef __SASC
+# ifdef WINDOWS32
+static void *
+my_realloc (void *p, unsigned int n)
+# else
+static char *
+my_realloc (p, n)
+ char *p;
+ unsigned int n;
+# endif
+{
+ /* These casts are the for sake of the broken Ultrix compiler,
+ which warns of illegal pointer combinations otherwise. */
+ if (p == NULL)
+ return (char *) malloc (n);
+ return (char *) realloc (p, n);
+}
+# define realloc my_realloc
+# endif /* __SASC */
+#endif /* __GNU_LIBRARY__ || __DJGPP__ */
+
+
+#if !defined __alloca && !defined __GNU_LIBRARY__
+
+# ifdef __GNUC__
+# undef alloca
+# define alloca(n) __builtin_alloca (n)
+# else /* Not GCC. */
+# ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+# else /* Not HAVE_ALLOCA_H. */
+# ifndef _AIX
+# ifdef WINDOWS32
+# include <malloc.h>
+# else
+extern char *alloca ();
+# endif /* WINDOWS32 */
+# endif /* Not _AIX. */
+# endif /* sparc or HAVE_ALLOCA_H. */
+# endif /* GCC. */
+
+# define __alloca alloca
+
+#endif
+
+#ifndef __GNU_LIBRARY__
+# define __stat stat
+# ifdef STAT_MACROS_BROKEN
+# undef S_ISDIR
+# endif
+# ifndef S_ISDIR
+# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
+# endif
+#endif
+
+#ifdef _LIBC
+# undef strdup
+# define strdup(str) __strdup (str)
+# define sysconf(id) __sysconf (id)
+# define closedir(dir) __closedir (dir)
+# define opendir(name) __opendir (name)
+# define readdir(str) __readdir (str)
+# define getpwnam_r(name, bufp, buf, len, res) \
+ __getpwnam_r (name, bufp, buf, len, res)
+# ifndef __stat
+# define __stat(fname, buf) __xstat (_STAT_VER, fname, buf)
+# endif
+#endif
+
+#if !(defined STDC_HEADERS || defined __GNU_LIBRARY__)
+# undef size_t
+# define size_t unsigned int
+#endif
+
+/* Some system header files erroneously define these.
+ We want our own definitions from <fnmatch.h> to take precedence. */
+#ifndef __GNU_LIBRARY__
+# undef FNM_PATHNAME
+# undef FNM_NOESCAPE
+# undef FNM_PERIOD
+#endif
+#include <fnmatch.h>
+
+/* Some system header files erroneously define these.
+ We want our own definitions from <glob.h> to take precedence. */
+#ifndef __GNU_LIBRARY__
+# undef GLOB_ERR
+# undef GLOB_MARK
+# undef GLOB_NOSORT
+# undef GLOB_DOOFFS
+# undef GLOB_NOCHECK
+# undef GLOB_APPEND
+# undef GLOB_NOESCAPE
+# undef GLOB_PERIOD
+#endif
+#include <glob.h>
+
+#ifdef HAVE_GETLOGIN_R
+extern int getlogin_r __P ((char *, size_t));
+#else
+extern char *getlogin __P ((void));
+#endif
+
+static
+#if __GNUC__ - 0 >= 2
+inline
+#endif
+const char *next_brace_sub __P ((const char *begin));
+static int glob_in_dir __P ((const char *pattern, const char *directory,
+ int flags,
+ int (*errfunc) (const char *, int),
+ glob_t *pglob));
+static int prefix_array __P ((const char *prefix, char **array, size_t n));
+static int collated_compare __P ((const __ptr_t, const __ptr_t));
+
+#if !defined _LIBC || !defined NO_GLOB_PATTERN_P
+int __glob_pattern_p __P ((const char *pattern, int quote));
+#endif
+
+/* Find the end of the sub-pattern in a brace expression. We define
+ this as an inline function if the compiler permits. */
+static
+#if __GNUC__ - 0 >= 2
+inline
+#endif
+const char *
+next_brace_sub (begin)
+ const char *begin;
+{
+ unsigned int depth = 0;
+ const char *cp = begin;
+
+ while (1)
+ {
+ if (depth == 0)
+ {
+ if (*cp != ',' && *cp != '}' && *cp != '\0')
+ {
+ if (*cp == '{')
+ ++depth;
+ ++cp;
+ continue;
+ }
+ }
+ else
+ {
+ while (*cp != '\0' && (*cp != '}' || depth > 0))
+ {
+ if (*cp == '}')
+ --depth;
+ ++cp;
+ }
+ if (*cp == '\0')
+ /* An incorrectly terminated brace expression. */
+ return NULL;
+
+ continue;
+ }
+ break;
+ }
+
+ return cp;
+}
+
+/* Do glob searching for PATTERN, placing results in PGLOB.
+ The bits defined above may be set in FLAGS.
+ If a directory cannot be opened or read and ERRFUNC is not nil,
+ it is called with the pathname that caused the error, and the
+ `errno' value from the failing call; if it returns non-zero
+ `glob' returns GLOB_ABORTED; if it returns zero, the error is ignored.
+ If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
+ Otherwise, `glob' returns zero. */
+int
+glob (pattern, flags, errfunc, pglob)
+ const char *pattern;
+ int flags;
+ int (*errfunc) __P ((const char *, int));
+ glob_t *pglob;
+{
+ const char *filename;
+ const char *dirname;
+ size_t dirlen;
+ int status;
+ int oldcount;
+
+ if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ /* POSIX requires all slashes to be matched. This means that with
+ a trailing slash we must match only directories. */
+ if (pattern[0] && pattern[strlen (pattern) - 1] == '/')
+ flags |= GLOB_ONLYDIR;
+
+ if (flags & GLOB_BRACE)
+ {
+ const char *begin = strchr (pattern, '{');
+ if (begin != NULL)
+ {
+ /* Allocate working buffer large enough for our work. Note that
+ we have at least an opening and closing brace. */
+ int firstc;
+ char *alt_start;
+ const char *p;
+ const char *next;
+ const char *rest;
+ size_t rest_len;
+#ifdef __GNUC__
+ char onealt[strlen (pattern) - 1];
+#else
+ char *onealt = (char *) malloc (strlen (pattern) - 1);
+ if (onealt == NULL)
+ {
+ if (!(flags & GLOB_APPEND))
+ globfree (pglob);
+ return GLOB_NOSPACE;
+ }
+#endif
+
+ /* We know the prefix for all sub-patterns. */
+#ifdef HAVE_MEMPCPY
+ alt_start = mempcpy (onealt, pattern, begin - pattern);
+#else
+ memcpy (onealt, pattern, begin - pattern);
+ alt_start = &onealt[begin - pattern];
+#endif
+
+ /* Find the first sub-pattern and at the same time find the
+ rest after the closing brace. */
+ next = next_brace_sub (begin + 1);
+ if (next == NULL)
+ {
+ /* It is an illegal expression. */
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
+ }
+
+ /* Now find the end of the whole brace expression. */
+ rest = next;
+ while (*rest != '}')
+ {
+ rest = next_brace_sub (rest + 1);
+ if (rest == NULL)
+ {
+ /* It is an illegal expression. */
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
+ }
+ }
+ /* Please note that we now can be sure the brace expression
+ is well-formed. */
+ rest_len = strlen (++rest) + 1;
+
+ /* We have a brace expression. BEGIN points to the opening {,
+ NEXT points past the terminator of the first element, and END
+ points past the final }. We will accumulate result names from
+ recursive runs for each brace alternative in the buffer using
+ GLOB_APPEND. */
+
+ if (!(flags & GLOB_APPEND))
+ {
+ /* This call is to set a new vector, so clear out the
+ vector so we can append to it. */
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ }
+ firstc = pglob->gl_pathc;
+
+ p = begin + 1;
+ while (1)
+ {
+ int result;
+
+ /* Construct the new glob expression. */
+#ifdef HAVE_MEMPCPY
+ mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
+#else
+ memcpy (alt_start, p, next - p);
+ memcpy (&alt_start[next - p], rest, rest_len);
+#endif
+
+ result = glob (onealt,
+ ((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC))
+ | GLOB_APPEND), errfunc, pglob);
+
+ /* If we got an error, return it. */
+ if (result && result != GLOB_NOMATCH)
+ {
+#ifndef __GNUC__
+ free (onealt);
+#endif
+ if (!(flags & GLOB_APPEND))
+ globfree (pglob);
+ return result;
+ }
+
+ if (*next == '}')
+ /* We saw the last entry. */
+ break;
+
+ p = next + 1;
+ next = next_brace_sub (p);
+ assert (next != NULL);
+ }
+
+#ifndef __GNUC__
+ free (onealt);
+#endif
+
+ if (pglob->gl_pathc != firstc)
+ /* We found some entries. */
+ return 0;
+ else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
+ return GLOB_NOMATCH;
+ }
+ }
+
+ /* Find the filename. */
+ filename = strrchr (pattern, '/');
+#if defined __MSDOS__ || defined WINDOWS32
+ /* The case of "d:pattern". Since `:' is not allowed in
+ file names, we can safely assume that wherever it
+ happens in pattern, it signals the filename part. This
+ is so we could some day support patterns like "[a-z]:foo". */
+ if (filename == NULL)
+ filename = strchr (pattern, ':');
+#endif /* __MSDOS__ || WINDOWS32 */
+ if (filename == NULL)
+ {
+ /* This can mean two things: a simple name or "~name". The later
+ case is nothing but a notation for a directory. */
+ if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && pattern[0] == '~')
+ {
+ dirname = pattern;
+ dirlen = strlen (pattern);
+
+ /* Set FILENAME to NULL as a special flag. This is ugly but
+ other solutions would require much more code. We test for
+ this special case below. */
+ filename = NULL;
+ }
+ else
+ {
+ filename = pattern;
+#ifdef _AMIGA
+ dirname = "";
+#else
+ dirname = ".";
+#endif
+ dirlen = 0;
+ }
+ }
+ else if (filename == pattern)
+ {
+ /* "/pattern". */
+ dirname = "/";
+ dirlen = 1;
+ ++filename;
+ }
+ else
+ {
+ char *newp;
+ dirlen = filename - pattern;
+#if defined __MSDOS__ || defined WINDOWS32
+ if (*filename == ':'
+ || (filename > pattern + 1 && filename[-1] == ':'))
+ {
+ char *drive_spec;
+
+ ++dirlen;
+ drive_spec = (char *) __alloca (dirlen + 1);
+#ifdef HAVE_MEMPCPY
+ *((char *) mempcpy (drive_spec, pattern, dirlen)) = '\0';
+#else
+ memcpy (drive_spec, pattern, dirlen);
+ drive_spec[dirlen] = '\0';
+#endif
+ /* For now, disallow wildcards in the drive spec, to
+ prevent infinite recursion in glob. */
+ if (__glob_pattern_p (drive_spec, !(flags & GLOB_NOESCAPE)))
+ return GLOB_NOMATCH;
+ /* If this is "d:pattern", we need to copy `:' to DIRNAME
+ as well. If it's "d:/pattern", don't remove the slash
+ from "d:/", since "d:" and "d:/" are not the same.*/
+ }
+#endif
+ newp = (char *) __alloca (dirlen + 1);
+#ifdef HAVE_MEMPCPY
+ *((char *) mempcpy (newp, pattern, dirlen)) = '\0';
+#else
+ memcpy (newp, pattern, dirlen);
+ newp[dirlen] = '\0';
+#endif
+ dirname = newp;
+ ++filename;
+
+ if (filename[0] == '\0'
+#if defined __MSDOS__ || defined WINDOWS32
+ && dirname[dirlen - 1] != ':'
+ && (dirlen < 3 || dirname[dirlen - 2] != ':'
+ || dirname[dirlen - 1] != '/')
+#endif
+ && dirlen > 1)
+ /* "pattern/". Expand "pattern", appending slashes. */
+ {
+ int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
+ if (val == 0)
+ pglob->gl_flags = ((pglob->gl_flags & ~GLOB_MARK)
+ | (flags & GLOB_MARK));
+ return val;
+ }
+ }
+
+ if (!(flags & GLOB_APPEND))
+ {
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ }
+
+ oldcount = pglob->gl_pathc;
+
+#ifndef VMS
+ if ((flags & (GLOB_TILDE|GLOB_TILDE_CHECK)) && dirname[0] == '~')
+ {
+ if (dirname[1] == '\0' || dirname[1] == '/')
+ {
+ /* Look up home directory. */
+#ifdef VMS
+/* This isn't obvious, RTLs of DECC and VAXC know about "HOME" */
+ const char *home_dir = getenv ("SYS$LOGIN");
+#else
+ const char *home_dir = getenv ("HOME");
+#endif
+# ifdef _AMIGA
+ if (home_dir == NULL || home_dir[0] == '\0')
+ home_dir = "SYS:";
+# else
+# ifdef WINDOWS32
+ if (home_dir == NULL || home_dir[0] == '\0')
+ home_dir = "c:/users/default"; /* poor default */
+# else
+# ifdef VMS
+/* Again, this isn't obvious, if "HOME" isn't known "SYS$LOGIN" should be set */
+ if (home_dir == NULL || home_dir[0] == '\0')
+ home_dir = "SYS$DISK:[]";
+# else
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
+ int success;
+ char *name;
+# if defined HAVE_GETLOGIN_R || defined _LIBC
+ size_t buflen = sysconf (_SC_LOGIN_NAME_MAX) + 1;
+
+ if (buflen == 0)
+ /* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try
+ a moderate value. */
+ buflen = 20;
+ name = (char *) __alloca (buflen);
+
+ success = getlogin_r (name, buflen) >= 0;
+# else
+ success = (name = getlogin ()) != NULL;
+# endif
+ if (success)
+ {
+ struct passwd *p;
+# if defined HAVE_GETPWNAM_R || defined _LIBC
+ size_t pwbuflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ char *pwtmpbuf;
+ struct passwd pwbuf;
+ int save = errno;
+
+ if (pwbuflen == -1)
+ /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX.
+ Try a moderate value. */
+ pwbuflen = 1024;
+ pwtmpbuf = (char *) __alloca (pwbuflen);
+
+ while (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p)
+ != 0)
+ {
+ if (errno != ERANGE)
+ {
+ p = NULL;
+ break;
+ }
+ pwbuflen *= 2;
+ pwtmpbuf = (char *) __alloca (pwbuflen);
+ __set_errno (save);
+ }
+# else
+ p = getpwnam (name);
+# endif
+ if (p != NULL)
+ home_dir = p->pw_dir;
+ }
+ }
+ if (home_dir == NULL || home_dir[0] == '\0')
+ {
+ if (flags & GLOB_TILDE_CHECK)
+ return GLOB_NOMATCH;
+ else
+ home_dir = "~"; /* No luck. */
+ }
+# endif /* VMS */
+# endif /* WINDOWS32 */
+# endif
+ /* Now construct the full directory. */
+ if (dirname[1] == '\0')
+ dirname = home_dir;
+ else
+ {
+ char *newp;
+ size_t home_len = strlen (home_dir);
+ newp = (char *) __alloca (home_len + dirlen);
+# ifdef HAVE_MEMPCPY
+ mempcpy (mempcpy (newp, home_dir, home_len),
+ &dirname[1], dirlen);
+# else
+ memcpy (newp, home_dir, home_len);
+ memcpy (&newp[home_len], &dirname[1], dirlen);
+# endif
+ dirname = newp;
+ }
+ }
+# if !defined _AMIGA && !defined WINDOWS32 && !defined VMS
+ else
+ {
+ char *end_name = strchr (dirname, '/');
+ const char *user_name;
+ const char *home_dir;
+
+ if (end_name == NULL)
+ user_name = dirname + 1;
+ else
+ {
+ char *newp;
+ newp = (char *) __alloca (end_name - dirname);
+# ifdef HAVE_MEMPCPY
+ *((char *) mempcpy (newp, dirname + 1, end_name - dirname))
+ = '\0';
+# else
+ memcpy (newp, dirname + 1, end_name - dirname);
+ newp[end_name - dirname - 1] = '\0';
+# endif
+ user_name = newp;
+ }
+
+ /* Look up specific user's home directory. */
+ {
+ struct passwd *p;
+# if defined HAVE_GETPWNAM_R || defined _LIBC
+ size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ char *pwtmpbuf;
+ struct passwd pwbuf;
+ int save = errno;
+
+ if (buflen == -1)
+ /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a
+ moderate value. */
+ buflen = 1024;
+ pwtmpbuf = (char *) __alloca (buflen);
+
+ while (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) != 0)
+ {
+ if (errno != ERANGE)
+ {
+ p = NULL;
+ break;
+ }
+ buflen *= 2;
+ pwtmpbuf = __alloca (buflen);
+ __set_errno (save);
+ }
+# else
+ p = getpwnam (user_name);
+# endif
+ if (p != NULL)
+ home_dir = p->pw_dir;
+ else
+ home_dir = NULL;
+ }
+ /* If we found a home directory use this. */
+ if (home_dir != NULL)
+ {
+ char *newp;
+ size_t home_len = strlen (home_dir);
+ size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
+ newp = (char *) __alloca (home_len + rest_len + 1);
+# ifdef HAVE_MEMPCPY
+ *((char *) mempcpy (mempcpy (newp, home_dir, home_len),
+ end_name, rest_len)) = '\0';
+# else
+ memcpy (newp, home_dir, home_len);
+ memcpy (&newp[home_len], end_name, rest_len);
+ newp[home_len + rest_len] = '\0';
+# endif
+ dirname = newp;
+ }
+ else
+ if (flags & GLOB_TILDE_CHECK)
+ /* We have to regard it as an error if we cannot find the
+ home directory. */
+ return GLOB_NOMATCH;
+ }
+# endif /* Not Amiga && not WINDOWS32 && not VMS. */
+ }
+#endif /* Not VMS. */
+
+ /* Now test whether we looked for "~" or "~NAME". In this case we
+ can give the answer now. */
+ if (filename == NULL)
+ {
+ struct stat st;
+
+ /* Return the directory if we don't check for error or if it exists. */
+ if ((flags & GLOB_NOCHECK)
+ || (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (dirname, &st)
+ : __stat (dirname, &st)) == 0
+ && S_ISDIR (st.st_mode)))
+ {
+ pglob->gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (pglob->gl_pathc +
+ ((flags & GLOB_DOOFFS) ?
+ pglob->gl_offs : 0) +
+ 1 + 1) *
+ sizeof (char *));
+ if (pglob->gl_pathv == NULL)
+ return GLOB_NOSPACE;
+
+ if (flags & GLOB_DOOFFS)
+ while (pglob->gl_pathc < pglob->gl_offs)
+ pglob->gl_pathv[pglob->gl_pathc++] = NULL;
+
+#if defined HAVE_STRDUP || defined _LIBC
+ pglob->gl_pathv[pglob->gl_pathc] = strdup (dirname);
+#else
+ {
+ size_t len = strlen (dirname) + 1;
+ char *dircopy = malloc (len);
+ if (dircopy != NULL)
+ pglob->gl_pathv[pglob->gl_pathc] = memcpy (dircopy, dirname,
+ len);
+ }
+#endif
+ if (pglob->gl_pathv[pglob->gl_pathc] == NULL)
+ {
+ free (pglob->gl_pathv);
+ return GLOB_NOSPACE;
+ }
+ pglob->gl_pathv[++pglob->gl_pathc] = NULL;
+ pglob->gl_flags = flags;
+
+ return 0;
+ }
+
+ /* Not found. */
+ return GLOB_NOMATCH;
+ }
+
+ if (__glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
+ {
+ /* The directory name contains metacharacters, so we
+ have to glob for the directory, and then glob for
+ the pattern in each directory found. */
+ glob_t dirs;
+ register int i;
+
+ status = glob (dirname,
+ ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE))
+ | GLOB_NOSORT | GLOB_ONLYDIR),
+ errfunc, &dirs);
+ if (status != 0)
+ return status;
+
+ /* We have successfully globbed the preceding directory name.
+ For each name we found, call glob_in_dir on it and FILENAME,
+ appending the results to PGLOB. */
+ for (i = 0; i < dirs.gl_pathc; ++i)
+ {
+ int old_pathc;
+
+#ifdef SHELL
+ {
+ /* Make globbing interruptible in the bash shell. */
+ extern int interrupt_state;
+
+ if (interrupt_state)
+ {
+ globfree (&dirs);
+ globfree (&files);
+ return GLOB_ABORTED;
+ }
+ }
+#endif /* SHELL. */
+
+ old_pathc = pglob->gl_pathc;
+ status = glob_in_dir (filename, dirs.gl_pathv[i],
+ ((flags | GLOB_APPEND)
+ & ~(GLOB_NOCHECK | GLOB_ERR)),
+ errfunc, pglob);
+ if (status == GLOB_NOMATCH)
+ /* No matches in this directory. Try the next. */
+ continue;
+
+ if (status != 0)
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ return status;
+ }
+
+ /* Stick the directory on the front of each name. */
+ if (prefix_array (dirs.gl_pathv[i],
+ &pglob->gl_pathv[old_pathc],
+ pglob->gl_pathc - old_pathc))
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ return GLOB_NOSPACE;
+ }
+ }
+
+ flags |= GLOB_MAGCHAR;
+
+ /* We have ignored the GLOB_NOCHECK flag in the `glob_in_dir' calls.
+ But if we have not found any matching entry and thie GLOB_NOCHECK
+ flag was set we must return the list consisting of the disrectory
+ names followed by the filename. */
+ if (pglob->gl_pathc == oldcount)
+ {
+ /* No matches. */
+ if (flags & GLOB_NOCHECK)
+ {
+ size_t filename_len = strlen (filename) + 1;
+ char **new_pathv;
+ struct stat st;
+
+ /* This is an pessimistic guess about the size. */
+ pglob->gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (pglob->gl_pathc +
+ ((flags & GLOB_DOOFFS) ?
+ pglob->gl_offs : 0) +
+ dirs.gl_pathc + 1) *
+ sizeof (char *));
+ if (pglob->gl_pathv == NULL)
+ {
+ globfree (&dirs);
+ return GLOB_NOSPACE;
+ }
+
+ if (flags & GLOB_DOOFFS)
+ while (pglob->gl_pathc < pglob->gl_offs)
+ pglob->gl_pathv[pglob->gl_pathc++] = NULL;
+
+ for (i = 0; i < dirs.gl_pathc; ++i)
+ {
+ const char *dir = dirs.gl_pathv[i];
+ size_t dir_len = strlen (dir);
+
+ /* First check whether this really is a directory. */
+ if (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (dir, &st) : __stat (dir, &st)) != 0
+ || !S_ISDIR (st.st_mode))
+ /* No directory, ignore this entry. */
+ continue;
+
+ pglob->gl_pathv[pglob->gl_pathc] = malloc (dir_len + 1
+ + filename_len);
+ if (pglob->gl_pathv[pglob->gl_pathc] == NULL)
+ {
+ globfree (&dirs);
+ globfree (pglob);
+ return GLOB_NOSPACE;
+ }
+
+#ifdef HAVE_MEMPCPY
+ mempcpy (mempcpy (mempcpy (pglob->gl_pathv[pglob->gl_pathc],
+ dir, dir_len),
+ "/", 1),
+ filename, filename_len);
+#else
+ memcpy (pglob->gl_pathv[pglob->gl_pathc], dir, dir_len);
+ pglob->gl_pathv[pglob->gl_pathc][dir_len] = '/';
+ memcpy (&pglob->gl_pathv[pglob->gl_pathc][dir_len + 1],
+ filename, filename_len);
+#endif
+ ++pglob->gl_pathc;
+ }
+
+ pglob->gl_pathv[pglob->gl_pathc] = NULL;
+ pglob->gl_flags = flags;
+
+ /* Now we know how large the gl_pathv vector must be. */
+ new_pathv = (char **) realloc (pglob->gl_pathv,
+ ((pglob->gl_pathc + 1)
+ * sizeof (char *)));
+ if (new_pathv != NULL)
+ pglob->gl_pathv = new_pathv;
+ }
+ else
+ return GLOB_NOMATCH;
+ }
+
+ globfree (&dirs);
+ }
+ else
+ {
+ status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
+ if (status != 0)
+ return status;
+
+ if (dirlen > 0)
+ {
+ /* Stick the directory on the front of each name. */
+ int ignore = oldcount;
+
+ if ((flags & GLOB_DOOFFS) && ignore < pglob->gl_offs)
+ ignore = pglob->gl_offs;
+
+ if (prefix_array (dirname,
+ &pglob->gl_pathv[ignore],
+ pglob->gl_pathc - ignore))
+ {
+ globfree (pglob);
+ return GLOB_NOSPACE;
+ }
+ }
+ }
+
+ if (flags & GLOB_MARK)
+ {
+ /* Append slashes to directory names. */
+ int i;
+ struct stat st;
+ for (i = oldcount; i < pglob->gl_pathc; ++i)
+ if (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (pglob->gl_pathv[i], &st)
+ : __stat (pglob->gl_pathv[i], &st)) == 0
+ && S_ISDIR (st.st_mode))
+ {
+ size_t len = strlen (pglob->gl_pathv[i]) + 2;
+ char *new = realloc (pglob->gl_pathv[i], len);
+ if (new == NULL)
+ {
+ globfree (pglob);
+ return GLOB_NOSPACE;
+ }
+ strcpy (&new[len - 2], "/");
+ pglob->gl_pathv[i] = new;
+ }
+ }
+
+ if (!(flags & GLOB_NOSORT))
+ {
+ /* Sort the vector. */
+ int non_sort = oldcount;
+
+ if ((flags & GLOB_DOOFFS) && pglob->gl_offs > oldcount)
+ non_sort = pglob->gl_offs;
+
+ qsort ((__ptr_t) &pglob->gl_pathv[non_sort],
+ pglob->gl_pathc - non_sort,
+ sizeof (char *), collated_compare);
+ }
+
+ return 0;
+}
+
+
+/* Free storage allocated in PGLOB by a previous `glob' call. */
+void
+globfree (pglob)
+ register glob_t *pglob;
+{
+ if (pglob->gl_pathv != NULL)
+ {
+ register int i;
+ for (i = 0; i < pglob->gl_pathc; ++i)
+ if (pglob->gl_pathv[i] != NULL)
+ free ((__ptr_t) pglob->gl_pathv[i]);
+ free ((__ptr_t) pglob->gl_pathv);
+ }
+}
+
+
+/* Do a collated comparison of A and B. */
+static int
+collated_compare (a, b)
+ const __ptr_t a;
+ const __ptr_t b;
+{
+ const char *const s1 = *(const char *const * const) a;
+ const char *const s2 = *(const char *const * const) b;
+
+ if (s1 == s2)
+ return 0;
+ if (s1 == NULL)
+ return 1;
+ if (s2 == NULL)
+ return -1;
+ return strcoll (s1, s2);
+}
+
+
+/* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
+ elements in place. Return nonzero if out of memory, zero if successful.
+ A slash is inserted between DIRNAME and each elt of ARRAY,
+ unless DIRNAME is just "/". Each old element of ARRAY is freed. */
+static int
+prefix_array (dirname, array, n)
+ const char *dirname;
+ char **array;
+ size_t n;
+{
+ register size_t i;
+ size_t dirlen = strlen (dirname);
+#if defined __MSDOS__ || defined WINDOWS32
+ int sep_char = '/';
+# define DIRSEP_CHAR sep_char
+#else
+# define DIRSEP_CHAR '/'
+#endif
+
+ if (dirlen == 1 && dirname[0] == '/')
+ /* DIRNAME is just "/", so normal prepending would get us "//foo".
+ We want "/foo" instead, so don't prepend any chars from DIRNAME. */
+ dirlen = 0;
+#if defined __MSDOS__ || defined WINDOWS32
+ else if (dirlen > 1)
+ {
+ if (dirname[dirlen - 1] == '/' && dirname[dirlen - 2] == ':')
+ /* DIRNAME is "d:/". Don't prepend the slash from DIRNAME. */
+ --dirlen;
+ else if (dirname[dirlen - 1] == ':')
+ {
+ /* DIRNAME is "d:". Use `:' instead of `/'. */
+ --dirlen;
+ sep_char = ':';
+ }
+ }
+#endif
+
+ for (i = 0; i < n; ++i)
+ {
+ size_t eltlen = strlen (array[i]) + 1;
+ char *new = (char *) malloc (dirlen + 1 + eltlen);
+ if (new == NULL)
+ {
+ while (i > 0)
+ free ((__ptr_t) array[--i]);
+ return 1;
+ }
+
+#ifdef HAVE_MEMPCPY
+ {
+ char *endp = (char *) mempcpy (new, dirname, dirlen);
+ *endp++ = DIRSEP_CHAR;
+ mempcpy (endp, array[i], eltlen);
+ }
+#else
+ memcpy (new, dirname, dirlen);
+ new[dirlen] = DIRSEP_CHAR;
+ memcpy (&new[dirlen + 1], array[i], eltlen);
+#endif
+ free ((__ptr_t) array[i]);
+ array[i] = new;
+ }
+
+ return 0;
+}
+
+
+/* We must not compile this function twice. */
+#if !defined _LIBC || !defined NO_GLOB_PATTERN_P
+/* Return nonzero if PATTERN contains any metacharacters.
+ Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
+int
+__glob_pattern_p (pattern, quote)
+ const char *pattern;
+ int quote;
+{
+ register const char *p;
+ int open = 0;
+
+ for (p = pattern; *p != '\0'; ++p)
+ switch (*p)
+ {
+ case '?':
+ case '*':
+ return 1;
+
+ case '\\':
+ if (quote && p[1] != '\0')
+ ++p;
+ break;
+
+ case '[':
+ open = 1;
+ break;
+
+ case ']':
+ if (open)
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+# ifdef _LIBC
+weak_alias (__glob_pattern_p, glob_pattern_p)
+# endif
+#endif
+
+
+/* Like `glob', but PATTERN is a final pathname component,
+ and matches are searched for in DIRECTORY.
+ The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
+ The GLOB_APPEND flag is assumed to be set (always appends). */
+static int
+glob_in_dir (pattern, directory, flags, errfunc, pglob)
+ const char *pattern;
+ const char *directory;
+ int flags;
+ int (*errfunc) __P ((const char *, int));
+ glob_t *pglob;
+{
+ __ptr_t stream = NULL;
+
+ struct globlink
+ {
+ struct globlink *next;
+ char *name;
+ };
+ struct globlink *names = NULL;
+ size_t nfound;
+ int meta;
+ int save;
+
+#ifdef VMS
+ if (*directory == 0)
+ directory = "[]";
+#endif
+ meta = __glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE));
+ if (meta == 0)
+ {
+ if (flags & (GLOB_NOCHECK|GLOB_NOMAGIC))
+ /* We need not do any tests. The PATTERN contains no meta
+ characters and we must not return an error therefore the
+ result will always contain exactly one name. */
+ flags |= GLOB_NOCHECK;
+ else
+ {
+ /* Since we use the normal file functions we can also use stat()
+ to verify the file is there. */
+ struct stat st;
+ size_t patlen = strlen (pattern);
+ size_t dirlen = strlen (directory);
+ char *fullname = (char *) __alloca (dirlen + 1 + patlen + 1);
+
+# ifdef HAVE_MEMPCPY
+ mempcpy (mempcpy (mempcpy (fullname, directory, dirlen),
+ "/", 1),
+ pattern, patlen + 1);
+# else
+ memcpy (fullname, directory, dirlen);
+ fullname[dirlen] = '/';
+ memcpy (&fullname[dirlen + 1], pattern, patlen + 1);
+# endif
+ if (((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_stat) (fullname, &st)
+ : __stat (fullname, &st)) == 0)
+ /* We found this file to be existing. Now tell the rest
+ of the function to copy this name into the result. */
+ flags |= GLOB_NOCHECK;
+ }
+
+ nfound = 0;
+ }
+ else
+ {
+ if (pattern[0] == '\0')
+ {
+ /* This is a special case for matching directories like in
+ "*a/". */
+ names = (struct globlink *) __alloca (sizeof (struct globlink));
+ names->name = (char *) malloc (1);
+ if (names->name == NULL)
+ goto memory_error;
+ names->name[0] = '\0';
+ names->next = NULL;
+ nfound = 1;
+ meta = 0;
+ }
+ else
+ {
+ stream = ((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_opendir) (directory)
+ : (__ptr_t) opendir (directory));
+ if (stream == NULL)
+ {
+ if (errno != ENOTDIR
+ && ((errfunc != NULL && (*errfunc) (directory, errno))
+ || (flags & GLOB_ERR)))
+ return GLOB_ABORTED;
+ nfound = 0;
+ meta = 0;
+ }
+ else
+ {
+ int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
+ | ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
+#if defined HAVE_CASE_INSENSITIVE_FS
+ | FNM_CASEFOLD
+#endif
+ );
+ nfound = 0;
+ flags |= GLOB_MAGCHAR;
+
+ while (1)
+ {
+ const char *name;
+ size_t len;
+ struct dirent *d = ((flags & GLOB_ALTDIRFUNC)
+ ? (*pglob->gl_readdir) (stream)
+ : readdir ((DIR *) stream));
+ if (d == NULL)
+ break;
+ if (! REAL_DIR_ENTRY (d))
+ continue;
+
+#ifdef HAVE_D_TYPE
+ /* If we shall match only directories use the information
+ provided by the dirent call if possible. */
+ if ((flags & GLOB_ONLYDIR)
+ && d->d_type != DT_UNKNOWN && d->d_type != DT_DIR)
+ continue;
+#endif
+
+ name = d->d_name;
+
+ if (fnmatch (pattern, name, fnm_flags) == 0)
+ {
+ struct globlink *new = (struct globlink *)
+ __alloca (sizeof (struct globlink));
+ len = NAMLEN (d);
+ new->name = (char *) malloc (len + 1);
+ if (new->name == NULL)
+ goto memory_error;
+#ifdef HAVE_MEMPCPY
+ *((char *) mempcpy ((__ptr_t) new->name, name, len))
+ = '\0';
+#else
+ memcpy ((__ptr_t) new->name, name, len);
+ new->name[len] = '\0';
+#endif
+ new->next = names;
+ names = new;
+ ++nfound;
+ }
+ }
+ }
+ }
+ }
+
+ if (nfound == 0 && (flags & GLOB_NOCHECK))
+ {
+ size_t len = strlen (pattern);
+ nfound = 1;
+ names = (struct globlink *) __alloca (sizeof (struct globlink));
+ names->next = NULL;
+ names->name = (char *) malloc (len + 1);
+ if (names->name == NULL)
+ goto memory_error;
+#ifdef HAVE_MEMPCPY
+ *((char *) mempcpy (names->name, pattern, len)) = '\0';
+#else
+ memcpy (names->name, pattern, len);
+ names->name[len] = '\0';
+#endif
+ }
+
+ if (nfound != 0)
+ {
+ pglob->gl_pathv
+ = (char **) realloc (pglob->gl_pathv,
+ (pglob->gl_pathc +
+ ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
+ nfound + 1) *
+ sizeof (char *));
+ if (pglob->gl_pathv == NULL)
+ goto memory_error;
+
+ if (flags & GLOB_DOOFFS)
+ while (pglob->gl_pathc < pglob->gl_offs)
+ pglob->gl_pathv[pglob->gl_pathc++] = NULL;
+
+ for (; names != NULL; names = names->next)
+ pglob->gl_pathv[pglob->gl_pathc++] = names->name;
+ pglob->gl_pathv[pglob->gl_pathc] = NULL;
+
+ pglob->gl_flags = flags;
+ }
+
+ save = errno;
+ if (stream != NULL)
+ {
+ if (flags & GLOB_ALTDIRFUNC)
+ (*pglob->gl_closedir) (stream);
+ else
+ closedir ((DIR *) stream);
+ }
+ __set_errno (save);
+
+ return nfound == 0 ? GLOB_NOMATCH : 0;
+
+ memory_error:
+ {
+ int save = errno;
+ if (flags & GLOB_ALTDIRFUNC)
+ (*pglob->gl_closedir) (stream);
+ else
+ closedir ((DIR *) stream);
+ __set_errno (save);
+ }
+ while (names != NULL)
+ {
+ if (names->name != NULL)
+ free ((__ptr_t) names->name);
+ names = names->next;
+ }
+ return GLOB_NOSPACE;
+}
+
+#endif /* Not ELIDE_CODE. */
diff --git a/glob/glob.h b/glob/glob.h
new file mode 100644
index 0000000..0992de3
--- /dev/null
+++ b/glob/glob.h
@@ -0,0 +1,210 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997, 1998 Free Software Foundation,
+Inc.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with this library; see the file COPYING.LIB. If not, write to the Free
+Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA. */
+
+#ifndef _GLOB_H
+#define _GLOB_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#undef __ptr_t
+#if defined __cplusplus || (defined __STDC__ && __STDC__) || defined WINDOWS32
+# if !defined __GLIBC__
+# undef __P
+# undef __PMT
+# define __P(protos) protos
+# define __PMT(protos) protos
+# if !defined __GNUC__ || __GNUC__ < 2
+# undef __const
+# define __const const
+# endif
+# endif
+# define __ptr_t void *
+#else /* Not C++ or ANSI C. */
+# undef __P
+# undef __PMT
+# define __P(protos) ()
+# define __PMT(protos) ()
+# undef __const
+# define __const
+# define __ptr_t char *
+#endif /* C++ or ANSI C. */
+
+/* We need `size_t' for the following definitions. */
+#ifndef __size_t
+# if defined __FreeBSD__
+# define __size_t size_t
+# else
+# if defined __GNUC__ && __GNUC__ >= 2
+typedef __SIZE_TYPE__ __size_t;
+# else
+/* This is a guess. */
+/*hb
+ * Conflicts with DECCs already defined type __size_t.
+ * Defining an own type with a name beginning with '__' is no good.
+ * Anyway if DECC is used and __SIZE_T is defined then __size_t is
+ * already defined (and I hope it's exactly the one we need here).
+ */
+# if !(defined __DECC && defined __SIZE_T)
+typedef unsigned long int __size_t;
+# endif
+# endif
+# endif
+#else
+/* The GNU CC stddef.h version defines __size_t as empty. We need a real
+ definition. */
+# undef __size_t
+# define __size_t size_t
+#endif
+
+/* Bits set in the FLAGS argument to `glob'. */
+#define GLOB_ERR (1 << 0)/* Return on read errors. */
+#define GLOB_MARK (1 << 1)/* Append a slash to each name. */
+#define GLOB_NOSORT (1 << 2)/* Don't sort the names. */
+#define GLOB_DOOFFS (1 << 3)/* Insert PGLOB->gl_offs NULLs. */
+#define GLOB_NOCHECK (1 << 4)/* If nothing matches, return the pattern. */
+#define GLOB_APPEND (1 << 5)/* Append to results of a previous call. */
+#define GLOB_NOESCAPE (1 << 6)/* Backslashes don't quote metacharacters. */
+#define GLOB_PERIOD (1 << 7)/* Leading `.' can be matched by metachars. */
+
+#if (!defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined _BSD_SOURCE \
+ || defined _GNU_SOURCE)
+# define GLOB_MAGCHAR (1 << 8)/* Set in gl_flags if any metachars seen. */
+# define GLOB_ALTDIRFUNC (1 << 9)/* Use gl_opendir et al functions. */
+# define GLOB_BRACE (1 << 10)/* Expand "{a,b}" to "a" "b". */
+# define GLOB_NOMAGIC (1 << 11)/* If no magic chars, return the pattern. */
+# define GLOB_TILDE (1 << 12)/* Expand ~user and ~ to home directories. */
+# define GLOB_ONLYDIR (1 << 13)/* Match only directories. */
+# define GLOB_TILDE_CHECK (1 << 14)/* Like GLOB_TILDE but return an error
+ if the user name is not available. */
+# define __GLOB_FLAGS (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
+ GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND| \
+ GLOB_PERIOD|GLOB_ALTDIRFUNC|GLOB_BRACE| \
+ GLOB_NOMAGIC|GLOB_TILDE|GLOB_ONLYDIR|GLOB_TILDE_CHECK)
+#else
+# define __GLOB_FLAGS (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
+ GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND| \
+ GLOB_PERIOD)
+#endif
+
+/* Error returns from `glob'. */
+#define GLOB_NOSPACE 1 /* Ran out of memory. */
+#define GLOB_ABORTED 2 /* Read error. */
+#define GLOB_NOMATCH 3 /* No matches found. */
+#define GLOB_NOSYS 4 /* Not implemented. */
+#ifdef _GNU_SOURCE
+/* Previous versions of this file defined GLOB_ABEND instead of
+ GLOB_ABORTED. Provide a compatibility definition here. */
+# define GLOB_ABEND GLOB_ABORTED
+#endif
+
+/* Structure describing a globbing run. */
+#if !defined _AMIGA && !defined VMS /* Buggy compiler. */
+struct stat;
+#endif
+typedef struct
+ {
+ __size_t gl_pathc; /* Count of paths matched by the pattern. */
+ char **gl_pathv; /* List of matched pathnames. */
+ __size_t gl_offs; /* Slots to reserve in `gl_pathv'. */
+ int gl_flags; /* Set to FLAGS, maybe | GLOB_MAGCHAR. */
+
+ /* If the GLOB_ALTDIRFUNC flag is set, the following functions
+ are used instead of the normal file access functions. */
+ void (*gl_closedir) __PMT ((void *));
+ struct dirent *(*gl_readdir) __PMT ((void *));
+ __ptr_t (*gl_opendir) __PMT ((__const char *));
+ int (*gl_lstat) __PMT ((__const char *, struct stat *));
+#if defined(VMS) && defined(__DECC) && !defined(_POSIX_C_SOURCE)
+ int (*gl_stat) __PMT ((__const char *, struct stat *, ...));
+#else
+ int (*gl_stat) __PMT ((__const char *, struct stat *));
+#endif
+ } glob_t;
+
+#ifdef _LARGEFILE64_SOURCE
+struct stat64;
+typedef struct
+ {
+ __size_t gl_pathc;
+ char **gl_pathv;
+ __size_t gl_offs;
+ int gl_flags;
+
+ /* If the GLOB_ALTDIRFUNC flag is set, the following functions
+ are used instead of the normal file access functions. */
+ void (*gl_closedir) __PMT ((void *));
+ struct dirent64 *(*gl_readdir) __PMT ((void *));
+ __ptr_t (*gl_opendir) __PMT ((__const char *));
+ int (*gl_lstat) __PMT ((__const char *, struct stat64 *));
+ int (*gl_stat) __PMT ((__const char *, struct stat64 *));
+ } glob64_t;
+#endif
+
+#if _FILE_OFFSET_BITS == 64 && __GNUC__ < 2
+# define glob glob64
+# define globfree globfree64
+#else
+# ifdef _LARGEFILE64_SOURCE
+extern int glob64 __P ((__const char *__pattern, int __flags,
+ int (*__errfunc) (__const char *, int),
+ glob64_t *__pglob));
+
+extern void globfree64 __P ((glob64_t *__pglob));
+# endif
+#endif
+
+/* Do glob searching for PATTERN, placing results in PGLOB.
+ The bits defined above may be set in FLAGS.
+ If a directory cannot be opened or read and ERRFUNC is not nil,
+ it is called with the pathname that caused the error, and the
+ `errno' value from the failing call; if it returns non-zero
+ `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
+ If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
+ Otherwise, `glob' returns zero. */
+#if _FILE_OFFSET_BITS != 64 || __GNUC__ < 2
+extern int glob __P ((__const char *__pattern, int __flags,
+ int (*__errfunc) (__const char *, int),
+ glob_t *__pglob));
+
+/* Free storage allocated in PGLOB by a previous `glob' call. */
+extern void globfree __P ((glob_t *__pglob));
+#else
+extern int glob __P ((__const char *__pattern, int __flags,
+ int (*__errfunc) (__const char *, int),
+ glob_t *__pglob)) __asm__ ("glob64");
+
+extern void globfree __P ((glob_t *__pglob)) __asm__ ("globfree64");
+#endif
+
+
+#ifdef _GNU_SOURCE
+/* Return nonzero if PATTERN contains any metacharacters.
+ Metacharacters can be quoted with backslashes if QUOTE is nonzero.
+
+ This function is not part of the interface specified by POSIX.2
+ but several programs want to use it. */
+extern int glob_pattern_p __P ((__const char *__pattern, int __quote));
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* glob.h */
diff --git a/gmk-default.scm b/gmk-default.scm
new file mode 100644
index 0000000..e7353f9
--- /dev/null
+++ b/gmk-default.scm
@@ -0,0 +1,53 @@
+;; Contents of the (gnu make) Guile module
+;; Copyright (C) 2011-2016 Free Software Foundation, Inc.
+;; This file is part of GNU Make.
+;;
+;; GNU Make is free software; you can redistribute it and/or modify it under
+;; the terms of the GNU General Public License as published by the Free
+;; Software Foundation; either version 3 of the License, or (at your option)
+;; any later version.
+;;
+;; GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+;; WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+;; FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+;; details.
+;;
+;; You should have received a copy of the GNU General Public License along
+;; with this program. If not, see <http://www.gnu.org/licenses/>.
+
+(define (to-string-maybe x)
+ (cond
+ ;; In GNU make, "false" is the empty string
+ ((or (not x)
+ (unspecified? x)
+ (variable? x)
+ (null? x)
+ (and (string? x) (string-null? x)))
+ #f)
+ ;; We want something not false... not sure about this
+ ((eq? x #t) "#t")
+ ;; Basics
+ ((or (symbol? x) (number? x))
+ (object->string x))
+ ((char? x)
+ (string x))
+ ;; Printable string (no special characters)
+ ((and (string? x) (string-every char-set:printing x))
+ x)
+ ;; No idea: fail
+ (else (error "Unknown object:" x))))
+
+(define (obj-to-str x)
+ (let ((acc '()))
+ (define (walk x)
+ (cond ((pair? x) (walk (car x)) (walk (cdr x)))
+ ((to-string-maybe x) => (lambda (s) (set! acc (cons s acc))))))
+ (walk x)
+ (string-join (reverse! acc))))
+
+;; Return the value of the GNU make variable V
+(define (gmk-var v)
+ (gmk-expand (format #f "$(~a)" (obj-to-str v))))
+
+;; Export the public interfaces
+(export gmk-expand gmk-eval gmk-var)
diff --git a/gnumake.h b/gnumake.h
new file mode 100644
index 0000000..b508562
--- /dev/null
+++ b/gnumake.h
@@ -0,0 +1,79 @@
+/* External interfaces usable by dynamic objects loaded into GNU Make.
+ --THIS API IS A "TECHNOLOGY PREVIEW" ONLY. IT IS NOT A STABLE INTERFACE--
+
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _GNUMAKE_H_
+#define _GNUMAKE_H_
+
+/* Specify the location of elements read from makefiles. */
+typedef struct
+ {
+ const char *filenm;
+ unsigned long lineno;
+ } gmk_floc;
+
+typedef char *(*gmk_func_ptr)(const char *nm, unsigned int argc, char **argv);
+
+#ifdef _WIN32
+# ifdef GMK_BUILDING_MAKE
+# define GMK_EXPORT __declspec(dllexport)
+# else
+# define GMK_EXPORT __declspec(dllimport)
+# endif
+#else
+# define GMK_EXPORT
+#endif
+
+/* Free memory returned by the gmk_expand() function. */
+GMK_EXPORT void gmk_free (char *str);
+
+/* Allocate memory in GNU make's context. */
+GMK_EXPORT char *gmk_alloc (unsigned int len);
+
+/* Run $(eval ...) on the provided string BUFFER. */
+GMK_EXPORT void gmk_eval (const char *buffer, const gmk_floc *floc);
+
+/* Run GNU make expansion on the provided string STR.
+ Returns an allocated buffer that the caller must free with gmk_free(). */
+GMK_EXPORT char *gmk_expand (const char *str);
+
+/* Register a new GNU make function NAME (maximum of 255 chars long).
+ When the function is expanded in the makefile, FUNC will be invoked with
+ the appropriate arguments.
+
+ The return value of FUNC must be either NULL, in which case it expands to
+ the empty string, or a pointer to the result of the expansion in a string
+ created by gmk_alloc(). GNU make will free the memory when it's done.
+
+ MIN_ARGS is the minimum number of arguments the function requires.
+ MAX_ARGS is the maximum number of arguments (or 0 if there's no maximum).
+ MIN_ARGS and MAX_ARGS may not exceed 255.
+
+ The FLAGS value may be GMK_FUNC_DEFAULT, or one or more of the following
+ flags OR'd together:
+
+ GMK_FUNC_NOEXPAND: the arguments to the function will be not be expanded
+ before FUNC is called.
+*/
+GMK_EXPORT void gmk_add_function (const char *name, gmk_func_ptr func,
+ unsigned int min_args, unsigned int max_args,
+ unsigned int flags);
+
+#define GMK_FUNC_DEFAULT 0x00
+#define GMK_FUNC_NOEXPAND 0x01
+
+#endif /* _GNUMAKE_H_ */
diff --git a/guile.c b/guile.c
new file mode 100644
index 0000000..1b055c3
--- /dev/null
+++ b/guile.c
@@ -0,0 +1,159 @@
+/* GNU Guile interface for GNU Make.
+Copyright (C) 2011-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#ifdef HAVE_GUILE
+
+#include "gnumake.h"
+
+#include "debug.h"
+#include "filedef.h"
+#include "dep.h"
+#include "variable.h"
+
+#include <libguile.h>
+
+/* Pre-2.0 versions of Guile don't have a typedef for gsubr function types. */
+#if SCM_MAJOR_VERSION < 2
+# define GSUBR_TYPE SCM (*) ()
+/* Guile 1.x doesn't really support i18n. */
+# define EVAL_STRING(_s) scm_c_eval_string (_s)
+#else
+# define GSUBR_TYPE scm_t_subr
+# define EVAL_STRING(_s) scm_eval_string (scm_from_utf8_string (_s))
+#endif
+
+static SCM make_mod = SCM_EOL;
+static SCM obj_to_str = SCM_EOL;
+
+/* Convert an SCM object into a string. */
+static char *
+cvt_scm_to_str (SCM obj)
+{
+ return scm_to_locale_string (scm_call_1 (obj_to_str, obj));
+}
+
+/* Perform the GNU make expansion function. */
+static SCM
+guile_expand_wrapper (SCM obj)
+{
+ char *str = cvt_scm_to_str (obj);
+ SCM ret;
+ char *res;
+
+ DB (DB_BASIC, (_("guile: Expanding '%s'\n"), str));
+ res = gmk_expand (str);
+ ret = scm_from_locale_string (res);
+
+ free (str);
+ free (res);
+
+ return ret;
+}
+
+/* Perform the GNU make eval function. */
+static SCM
+guile_eval_wrapper (SCM obj)
+{
+ char *str = cvt_scm_to_str (obj);
+
+ DB (DB_BASIC, (_("guile: Evaluating '%s'\n"), str));
+ gmk_eval (str, 0);
+
+ return SCM_BOOL_F;
+}
+
+/* Invoked by scm_c_define_module(), in the context of the GNU make module. */
+static void
+guile_define_module (void *data UNUSED)
+{
+/* Ingest the predefined Guile module for GNU make. */
+#include "gmk-default.h"
+
+ /* Register a subr for GNU make's eval capability. */
+ scm_c_define_gsubr ("gmk-expand", 1, 0, 0, (GSUBR_TYPE) guile_expand_wrapper);
+
+ /* Register a subr for GNU make's eval capability. */
+ scm_c_define_gsubr ("gmk-eval", 1, 0, 0, (GSUBR_TYPE) guile_eval_wrapper);
+
+ /* Define the rest of the module. */
+ scm_c_eval_string (GUILE_module_defn);
+}
+
+/* Initialize the GNU make Guile module. */
+static void *
+guile_init (void *arg UNUSED)
+{
+ /* Define the module. */
+ make_mod = scm_c_define_module ("gnu make", guile_define_module, NULL);
+
+ /* Get a reference to the object-to-string translator, for later. */
+ obj_to_str = scm_variable_ref (scm_c_module_lookup (make_mod, "obj-to-str"));
+
+ /* Import the GNU make module exports into the generic space. */
+ scm_c_eval_string ("(use-modules (gnu make))");
+
+ return NULL;
+}
+
+static void *
+internal_guile_eval (void *arg)
+{
+ return cvt_scm_to_str (EVAL_STRING (arg));
+}
+
+/* This is the function registered with make */
+static char *
+func_guile (const char *funcname UNUSED, unsigned int argc UNUSED, char **argv)
+{
+ static int init = 0;
+
+ if (! init)
+ {
+ /* Initialize the Guile interpreter. */
+ scm_with_guile (guile_init, NULL);
+ init = 1;
+ }
+
+ if (argv[0] && argv[0][0] != '\0')
+ return scm_with_guile (internal_guile_eval, argv[0]);
+
+ return NULL;
+}
+
+/* ----- Public interface ----- */
+
+/* We could send the flocp to define_new_function(), but since guile is
+ "kind of" built-in, that didn't seem so useful. */
+int
+guile_gmake_setup (const floc *flocp UNUSED)
+{
+ /* Create a make function "guile". */
+ gmk_add_function ("guile", func_guile, 0, 1, GMK_FUNC_DEFAULT);
+
+ return 1;
+}
+
+#else
+
+int
+guile_gmake_setup (const floc *flocp UNUSED)
+{
+ return 1;
+}
+
+#endif
diff --git a/hash.c b/hash.c
new file mode 100644
index 0000000..7b4b271
--- /dev/null
+++ b/hash.c
@@ -0,0 +1,330 @@
+/* hash.c -- hash table maintenance
+Copyright (C) 1995, 1999, 2002, 2010 Free Software Foundation, Inc.
+Written by Greg McGary <gkm@gnu.org> <greg@mcgary.org>
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "hash.h"
+
+#define CALLOC(t, n) ((t *) xcalloc (sizeof (t) * (n)))
+#define MALLOC(t, n) ((t *) xmalloc (sizeof (t) * (n)))
+#define REALLOC(o, t, n) ((t *) xrealloc ((o), sizeof (t) * (n)))
+#define CLONE(o, t, n) ((t *) memcpy (MALLOC (t, (n)), (o), sizeof (t) * (n)))
+
+static void hash_rehash __P((struct hash_table* ht));
+static unsigned long round_up_2 __P((unsigned long rough));
+
+/* Implement double hashing with open addressing. The table size is
+ always a power of two. The secondary ('increment') hash function
+ is forced to return an odd-value, in order to be relatively prime
+ to the table size. This guarantees that the increment can
+ potentially hit every slot in the table during collision
+ resolution. */
+
+void *hash_deleted_item = &hash_deleted_item;
+
+/* Force the table size to be a power of two, possibly rounding up the
+ given size. */
+
+void
+hash_init (struct hash_table *ht, unsigned long size,
+ hash_func_t hash_1, hash_func_t hash_2, hash_cmp_func_t hash_cmp)
+{
+ ht->ht_size = round_up_2 (size);
+ ht->ht_empty_slots = ht->ht_size;
+ ht->ht_vec = (void**) CALLOC (struct token *, ht->ht_size);
+ if (ht->ht_vec == 0)
+ {
+ fprintf (stderr, _("can't allocate %lu bytes for hash table: memory exhausted"),
+ ht->ht_size * (unsigned long) sizeof (struct token *));
+ exit (MAKE_TROUBLE);
+ }
+
+ ht->ht_capacity = ht->ht_size - (ht->ht_size / 16); /* 93.75% loading factor */
+ ht->ht_fill = 0;
+ ht->ht_collisions = 0;
+ ht->ht_lookups = 0;
+ ht->ht_rehashes = 0;
+ ht->ht_hash_1 = hash_1;
+ ht->ht_hash_2 = hash_2;
+ ht->ht_compare = hash_cmp;
+}
+
+/* Load an array of items into 'ht'. */
+
+void
+hash_load (struct hash_table *ht, void *item_table,
+ unsigned long cardinality, unsigned long size)
+{
+ char *items = (char *) item_table;
+ while (cardinality--)
+ {
+ hash_insert (ht, items);
+ items += size;
+ }
+}
+
+/* Returns the address of the table slot matching 'key'. If 'key' is
+ not found, return the address of an empty slot suitable for
+ inserting 'key'. The caller is responsible for incrementing
+ ht_fill on insertion. */
+
+void **
+hash_find_slot (struct hash_table *ht, const void *key)
+{
+ void **slot;
+ void **deleted_slot = 0;
+ unsigned int hash_2 = 0;
+ unsigned int hash_1 = (*ht->ht_hash_1) (key);
+
+ ht->ht_lookups++;
+ for (;;)
+ {
+ hash_1 &= (ht->ht_size - 1);
+ slot = &ht->ht_vec[hash_1];
+
+ if (*slot == 0)
+ return (deleted_slot ? deleted_slot : slot);
+ if (*slot == hash_deleted_item)
+ {
+ if (deleted_slot == 0)
+ deleted_slot = slot;
+ }
+ else
+ {
+ if (key == *slot)
+ return slot;
+ if ((*ht->ht_compare) (key, *slot) == 0)
+ return slot;
+ ht->ht_collisions++;
+ }
+ if (!hash_2)
+ hash_2 = (*ht->ht_hash_2) (key) | 1;
+ hash_1 += hash_2;
+ }
+}
+
+void *
+hash_find_item (struct hash_table *ht, const void *key)
+{
+ void **slot = hash_find_slot (ht, key);
+ return ((HASH_VACANT (*slot)) ? 0 : *slot);
+}
+
+void *
+hash_insert (struct hash_table *ht, const void *item)
+{
+ void **slot = hash_find_slot (ht, item);
+ const void *old_item = *slot;
+ hash_insert_at (ht, item, slot);
+ return (void *)((HASH_VACANT (old_item)) ? 0 : old_item);
+}
+
+void *
+hash_insert_at (struct hash_table *ht, const void *item, const void *slot)
+{
+ const void *old_item = *(void **) slot;
+ if (HASH_VACANT (old_item))
+ {
+ ht->ht_fill++;
+ if (old_item == 0)
+ ht->ht_empty_slots--;
+ old_item = item;
+ }
+ *(void const **) slot = item;
+ if (ht->ht_empty_slots < ht->ht_size - ht->ht_capacity)
+ {
+ hash_rehash (ht);
+ return (void *) hash_find_slot (ht, item);
+ }
+ else
+ return (void *) slot;
+}
+
+void *
+hash_delete (struct hash_table *ht, const void *item)
+{
+ void **slot = hash_find_slot (ht, item);
+ return hash_delete_at (ht, slot);
+}
+
+void *
+hash_delete_at (struct hash_table *ht, const void *slot)
+{
+ void *item = *(void **) slot;
+ if (!HASH_VACANT (item))
+ {
+ *(void const **) slot = hash_deleted_item;
+ ht->ht_fill--;
+ return item;
+ }
+ else
+ return 0;
+}
+
+void
+hash_free_items (struct hash_table *ht)
+{
+ void **vec = ht->ht_vec;
+ void **end = &vec[ht->ht_size];
+ for (; vec < end; vec++)
+ {
+ void *item = *vec;
+ if (!HASH_VACANT (item))
+ free (item);
+ *vec = 0;
+ }
+ ht->ht_fill = 0;
+ ht->ht_empty_slots = ht->ht_size;
+}
+
+void
+hash_delete_items (struct hash_table *ht)
+{
+ void **vec = ht->ht_vec;
+ void **end = &vec[ht->ht_size];
+ for (; vec < end; vec++)
+ *vec = 0;
+ ht->ht_fill = 0;
+ ht->ht_collisions = 0;
+ ht->ht_lookups = 0;
+ ht->ht_rehashes = 0;
+ ht->ht_empty_slots = ht->ht_size;
+}
+
+void
+hash_free (struct hash_table *ht, int free_items)
+{
+ if (free_items)
+ hash_free_items (ht);
+ else
+ {
+ ht->ht_fill = 0;
+ ht->ht_empty_slots = ht->ht_size;
+ }
+ free (ht->ht_vec);
+ ht->ht_vec = 0;
+ ht->ht_capacity = 0;
+}
+
+void
+hash_map (struct hash_table *ht, hash_map_func_t map)
+{
+ void **slot;
+ void **end = &ht->ht_vec[ht->ht_size];
+
+ for (slot = ht->ht_vec; slot < end; slot++)
+ {
+ if (!HASH_VACANT (*slot))
+ (*map) (*slot);
+ }
+}
+
+void
+hash_map_arg (struct hash_table *ht, hash_map_arg_func_t map, void *arg)
+{
+ void **slot;
+ void **end = &ht->ht_vec[ht->ht_size];
+
+ for (slot = ht->ht_vec; slot < end; slot++)
+ {
+ if (!HASH_VACANT (*slot))
+ (*map) (*slot, arg);
+ }
+}
+
+/* Double the size of the hash table in the event of overflow... */
+
+static void
+hash_rehash (struct hash_table *ht)
+{
+ unsigned long old_ht_size = ht->ht_size;
+ void **old_vec = ht->ht_vec;
+ void **ovp;
+
+ if (ht->ht_fill >= ht->ht_capacity)
+ {
+ ht->ht_size *= 2;
+ ht->ht_capacity = ht->ht_size - (ht->ht_size >> 4);
+ }
+ ht->ht_rehashes++;
+ ht->ht_vec = (void **) CALLOC (struct token *, ht->ht_size);
+
+ for (ovp = old_vec; ovp < &old_vec[old_ht_size]; ovp++)
+ {
+ if (! HASH_VACANT (*ovp))
+ {
+ void **slot = hash_find_slot (ht, *ovp);
+ *slot = *ovp;
+ }
+ }
+ ht->ht_empty_slots = ht->ht_size - ht->ht_fill;
+ free (old_vec);
+}
+
+void
+hash_print_stats (struct hash_table *ht, FILE *out_FILE)
+{
+ /* GKM FIXME: honor NO_FLOAT */
+ fprintf (out_FILE, _("Load=%ld/%ld=%.0f%%, "), ht->ht_fill, ht->ht_size,
+ 100.0 * (double) ht->ht_fill / (double) ht->ht_size);
+ fprintf (out_FILE, _("Rehash=%d, "), ht->ht_rehashes);
+ fprintf (out_FILE, _("Collisions=%ld/%ld=%.0f%%"), ht->ht_collisions, ht->ht_lookups,
+ (ht->ht_lookups
+ ? (100.0 * (double) ht->ht_collisions / (double) ht->ht_lookups)
+ : 0));
+}
+
+/* Dump all items into a NULL-terminated vector. Use the
+ user-supplied vector, or malloc one. */
+
+void **
+hash_dump (struct hash_table *ht, void **vector_0, qsort_cmp_t compare)
+{
+ void **vector;
+ void **slot;
+ void **end = &ht->ht_vec[ht->ht_size];
+
+ if (vector_0 == 0)
+ vector_0 = MALLOC (void *, ht->ht_fill + 1);
+ vector = vector_0;
+
+ for (slot = ht->ht_vec; slot < end; slot++)
+ if (!HASH_VACANT (*slot))
+ *vector++ = *slot;
+ *vector = 0;
+
+ if (compare)
+ qsort (vector_0, ht->ht_fill, sizeof (void *), compare);
+ return vector_0;
+}
+
+/* Round a given number up to the nearest power of 2. */
+
+static unsigned long
+round_up_2 (unsigned long n)
+{
+ n |= (n >> 1);
+ n |= (n >> 2);
+ n |= (n >> 4);
+ n |= (n >> 8);
+ n |= (n >> 16);
+
+#if !defined(HAVE_LIMITS_H) || ULONG_MAX > 4294967295
+ /* We only need this on systems where unsigned long is >32 bits. */
+ n |= (n >> 32);
+#endif
+
+ return n + 1;
+}
diff --git a/hash.h b/hash.h
new file mode 100644
index 0000000..960cbd7
--- /dev/null
+++ b/hash.h
@@ -0,0 +1,234 @@
+/* hash.h -- decls for hash table
+Copyright (C) 1995, 1999, 2002, 2010 Free Software Foundation, Inc.
+Written by Greg McGary <gkm@gnu.org> <greg@mcgary.org>
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _hash_h_
+#define _hash_h_
+
+#include <stdio.h>
+#include <ctype.h>
+
+#if defined __cplusplus || (defined __STDC__ && __STDC__) || defined WINDOWS32
+# if !defined __GLIBC__ || !defined __P
+# undef __P
+# define __P(protos) protos
+# endif
+#else /* Not C++ or ANSI C. */
+# undef __P
+# define __P(protos) ()
+/* We can get away without defining 'const' here only because in this file
+ it is used only inside the prototype for 'fnmatch', which is elided in
+ non-ANSI C where 'const' is problematical. */
+#endif /* C++ or ANSI C. */
+
+typedef unsigned long (*hash_func_t) __P((void const *key));
+typedef int (*hash_cmp_func_t) __P((void const *x, void const *y));
+typedef void (*hash_map_func_t) __P((void const *item));
+typedef void (*hash_map_arg_func_t) __P((void const *item, void *arg));
+
+struct hash_table
+{
+ void **ht_vec;
+ hash_func_t ht_hash_1; /* primary hash function */
+ hash_func_t ht_hash_2; /* secondary hash function */
+ hash_cmp_func_t ht_compare; /* comparison function */
+ unsigned long ht_size; /* total number of slots (power of 2) */
+ unsigned long ht_capacity; /* usable slots, limited by loading-factor */
+ unsigned long ht_fill; /* items in table */
+ unsigned long ht_empty_slots; /* empty slots not including deleted slots */
+ unsigned long ht_collisions; /* # of failed calls to comparison function */
+ unsigned long ht_lookups; /* # of queries */
+ unsigned int ht_rehashes; /* # of times we've expanded table */
+};
+
+typedef int (*qsort_cmp_t) __P((void const *, void const *));
+
+void hash_init __P((struct hash_table *ht, unsigned long size,
+ hash_func_t hash_1, hash_func_t hash_2, hash_cmp_func_t hash_cmp));
+void hash_load __P((struct hash_table *ht, void *item_table,
+ unsigned long cardinality, unsigned long size));
+void **hash_find_slot __P((struct hash_table *ht, void const *key));
+void *hash_find_item __P((struct hash_table *ht, void const *key));
+void *hash_insert __P((struct hash_table *ht, const void *item));
+void *hash_insert_at __P((struct hash_table *ht, const void *item, void const *slot));
+void *hash_delete __P((struct hash_table *ht, void const *item));
+void *hash_delete_at __P((struct hash_table *ht, void const *slot));
+void hash_delete_items __P((struct hash_table *ht));
+void hash_free_items __P((struct hash_table *ht));
+void hash_free __P((struct hash_table *ht, int free_items));
+void hash_map __P((struct hash_table *ht, hash_map_func_t map));
+void hash_map_arg __P((struct hash_table *ht, hash_map_arg_func_t map, void *arg));
+void hash_print_stats __P((struct hash_table *ht, FILE *out_FILE));
+void **hash_dump __P((struct hash_table *ht, void **vector_0, qsort_cmp_t compare));
+
+extern void *hash_deleted_item;
+#define HASH_VACANT(item) ((item) == 0 || (void *) (item) == hash_deleted_item)
+
+
+/* hash and comparison macros for case-sensitive string keys. */
+
+/* Due to the strcache, it's not uncommon for the string pointers to
+ be identical. Take advantage of that to short-circuit string compares. */
+
+#define STRING_HASH_1(KEY, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ while (*++_key_) \
+ (RESULT) += (*_key_ << (_key_[1] & 0xf)); \
+} while (0)
+#define return_STRING_HASH_1(KEY) do { \
+ unsigned long _result_ = 0; \
+ STRING_HASH_1 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define STRING_HASH_2(KEY, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ while (*++_key_) \
+ (RESULT) += (*_key_ << (_key_[1] & 0x7)); \
+} while (0)
+#define return_STRING_HASH_2(KEY) do { \
+ unsigned long _result_ = 0; \
+ STRING_HASH_2 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define STRING_COMPARE(X, Y, RESULT) do { \
+ RESULT = (X) == (Y) ? 0 : strcmp ((X), (Y)); \
+} while (0)
+#define return_STRING_COMPARE(X, Y) do { \
+ return (X) == (Y) ? 0 : strcmp ((X), (Y)); \
+} while (0)
+
+
+#define STRING_N_HASH_1(KEY, N, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ int _n_ = (N); \
+ if (_n_) \
+ while (--_n_ && *++_key_) \
+ (RESULT) += (*_key_ << (_key_[1] & 0xf)); \
+ (RESULT) += *++_key_; \
+} while (0)
+#define return_STRING_N_HASH_1(KEY, N) do { \
+ unsigned long _result_ = 0; \
+ STRING_N_HASH_1 ((KEY), (N), _result_); \
+ return _result_; \
+} while (0)
+
+#define STRING_N_HASH_2(KEY, N, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ int _n_ = (N); \
+ if (_n_) \
+ while (--_n_ && *++_key_) \
+ (RESULT) += (*_key_ << (_key_[1] & 0x7)); \
+ (RESULT) += *++_key_; \
+} while (0)
+#define return_STRING_N_HASH_2(KEY, N) do { \
+ unsigned long _result_ = 0; \
+ STRING_N_HASH_2 ((KEY), (N), _result_); \
+ return _result_; \
+} while (0)
+
+#define STRING_N_COMPARE(X, Y, N, RESULT) do { \
+ RESULT = (X) == (Y) ? 0 : strncmp ((X), (Y), (N)); \
+} while (0)
+#define return_STRING_N_COMPARE(X, Y, N) do { \
+ return (X) == (Y) ? 0 : strncmp ((X), (Y), (N)); \
+} while (0)
+
+#ifdef HAVE_CASE_INSENSITIVE_FS
+
+/* hash and comparison macros for case-insensitive string _key_s. */
+
+#define ISTRING_HASH_1(KEY, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ while (*++_key_) \
+ (RESULT) += ((isupper (*_key_) ? tolower (*_key_) : *_key_) << (_key_[1] & 0xf)); \
+} while (0)
+#define return_ISTRING_HASH_1(KEY) do { \
+ unsigned long _result_ = 0; \
+ ISTRING_HASH_1 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define ISTRING_HASH_2(KEY, RESULT) do { \
+ unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+ while (*++_key_) \
+ (RESULT) += ((isupper (*_key_) ? tolower (*_key_) : *_key_) << (_key_[1] & 0x7)); \
+} while (0)
+#define return_ISTRING_HASH_2(KEY) do { \
+ unsigned long _result_ = 0; \
+ ISTRING_HASH_2 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define ISTRING_COMPARE(X, Y, RESULT) do { \
+ RESULT = (X) == (Y) ? 0 : strcasecmp ((X), (Y)); \
+} while (0)
+#define return_ISTRING_COMPARE(X, Y) do { \
+ return (X) == (Y) ? 0 : strcasecmp ((X), (Y)); \
+} while (0)
+
+#else
+
+#define ISTRING_HASH_1(KEY, RESULT) STRING_HASH_1 ((KEY), (RESULT))
+#define return_ISTRING_HASH_1(KEY) return_STRING_HASH_1 (KEY)
+
+#define ISTRING_HASH_2(KEY, RESULT) STRING_HASH_2 ((KEY), (RESULT))
+#define return_ISTRING_HASH_2(KEY) return_STRING_HASH_2 (KEY)
+
+#define ISTRING_COMPARE(X, Y, RESULT) STRING_COMPARE ((X), (Y), (RESULT))
+#define return_ISTRING_COMPARE(X, Y) return_STRING_COMPARE ((X), (Y))
+
+#endif
+
+/* hash and comparison macros for integer _key_s. */
+
+#define INTEGER_HASH_1(KEY, RESULT) do { \
+ (RESULT) += ((unsigned long)(KEY)); \
+} while (0)
+#define return_INTEGER_HASH_1(KEY) do { \
+ unsigned long _result_ = 0; \
+ INTEGER_HASH_1 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define INTEGER_HASH_2(KEY, RESULT) do { \
+ (RESULT) += ~((unsigned long)(KEY)); \
+} while (0)
+#define return_INTEGER_HASH_2(KEY) do { \
+ unsigned long _result_ = 0; \
+ INTEGER_HASH_2 ((KEY), _result_); \
+ return _result_; \
+} while (0)
+
+#define INTEGER_COMPARE(X, Y, RESULT) do { \
+ (RESULT) = X - Y; \
+} while (0)
+#define return_INTEGER_COMPARE(X, Y) do { \
+ int _result_; \
+ INTEGER_COMPARE (X, Y, _result_); \
+ return _result_; \
+} while (0)
+
+/* hash and comparison macros for address keys. */
+
+#define ADDRESS_HASH_1(KEY, RESULT) INTEGER_HASH_1 (((unsigned long)(KEY)) >> 3, (RESULT))
+#define ADDRESS_HASH_2(KEY, RESULT) INTEGER_HASH_2 (((unsigned long)(KEY)) >> 3, (RESULT))
+#define ADDRESS_COMPARE(X, Y, RESULT) INTEGER_COMPARE ((X), (Y), (RESULT))
+#define return_ADDRESS_HASH_1(KEY) return_INTEGER_HASH_1 (((unsigned long)(KEY)) >> 3)
+#define return_ADDRESS_HASH_2(KEY) return_INTEGER_HASH_2 (((unsigned long)(KEY)) >> 3)
+#define return_ADDRESS_COMPARE(X, Y) return_INTEGER_COMPARE ((X), (Y))
+
+#endif /* not _hash_h_ */
diff --git a/implicit.c b/implicit.c
new file mode 100644
index 0000000..ed49bd1
--- /dev/null
+++ b/implicit.c
@@ -0,0 +1,999 @@
+/* Implicit rule searching for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "rule.h"
+#include "dep.h"
+#include "debug.h"
+#include "variable.h"
+#include "job.h" /* struct child, used inside commands.h */
+#include "commands.h" /* set_file_variables */
+
+static int pattern_search (struct file *file, int archive,
+ unsigned int depth, unsigned int recursions);
+
+/* For a FILE which has no commands specified, try to figure out some
+ from the implicit pattern rules.
+ Returns 1 if a suitable implicit rule was found,
+ after modifying FILE to contain the appropriate commands and deps,
+ or returns 0 if no implicit rule was found. */
+
+int
+try_implicit_rule (struct file *file, unsigned int depth)
+{
+ DBF (DB_IMPLICIT, _("Looking for an implicit rule for '%s'.\n"));
+
+ /* The order of these searches was previously reversed. My logic now is
+ that since the non-archive search uses more information in the target
+ (the archive search omits the archive name), it is more specific and
+ should come first. */
+
+ if (pattern_search (file, 0, depth, 0))
+ return 1;
+
+#ifndef NO_ARCHIVES
+ /* If this is an archive member reference, use just the
+ archive member name to search for implicit rules. */
+ if (ar_name (file->name))
+ {
+ DBF (DB_IMPLICIT,
+ _("Looking for archive-member implicit rule for '%s'.\n"));
+ if (pattern_search (file, 1, depth, 0))
+ return 1;
+ }
+#endif
+
+ return 0;
+}
+
+
+/* Scans the BUFFER for the next word with whitespace as a separator.
+ Returns the pointer to the beginning of the word. LENGTH hold the
+ length of the word. */
+
+static const char *
+get_next_word (const char *buffer, unsigned int *length)
+{
+ const char *p = buffer, *beg;
+ char c;
+
+ /* Skip any leading whitespace. */
+ NEXT_TOKEN (p);
+
+ beg = p;
+ c = *(p++);
+
+ if (c == '\0')
+ return 0;
+
+
+ /* We already found the first value of "c", above. */
+ while (1)
+ {
+ char closeparen;
+ int count;
+
+ switch (c)
+ {
+ case '\0':
+ case ' ':
+ case '\t':
+ goto done_word;
+
+ case '$':
+ c = *(p++);
+ if (c == '$')
+ break;
+
+ /* This is a variable reference, so read it to the matching
+ close paren. */
+
+ if (c == '(')
+ closeparen = ')';
+ else if (c == '{')
+ closeparen = '}';
+ else
+ /* This is a single-letter variable reference. */
+ break;
+
+ for (count = 0; *p != '\0'; ++p)
+ {
+ if (*p == c)
+ ++count;
+ else if (*p == closeparen && --count < 0)
+ {
+ ++p;
+ break;
+ }
+ }
+ break;
+
+ case '|':
+ goto done;
+
+ default:
+ break;
+ }
+
+ c = *(p++);
+ }
+ done_word:
+ --p;
+
+ done:
+ if (length)
+ *length = p - beg;
+
+ return beg;
+}
+
+/* This structure stores information about the expanded prerequisites for a
+ pattern rule. NAME is always set to the strcache'd name of the prereq.
+ FILE and PATTERN will be set for intermediate files only. IGNORE_MTIME is
+ copied from the prerequisite we expanded.
+ */
+struct patdeps
+ {
+ const char *name;
+ const char *pattern;
+ struct file *file;
+ unsigned int ignore_mtime : 1;
+ };
+
+/* This structure stores information about pattern rules that we need
+ to try.
+*/
+struct tryrule
+ {
+ struct rule *rule;
+
+ /* Index of the target in this rule that matched the file. */
+ unsigned int matches;
+
+ /* Stem length for this match. */
+ unsigned int stemlen;
+
+ /* Definition order of this rule. Used to implement stable sort.*/
+ unsigned int order;
+
+ /* Nonzero if the LASTSLASH logic was used in matching this rule. */
+ char checked_lastslash;
+ };
+
+int
+stemlen_compare (const void *v1, const void *v2)
+{
+ const struct tryrule *r1 = v1;
+ const struct tryrule *r2 = v2;
+ int r = r1->stemlen - r2->stemlen;
+ return r != 0 ? r : (int)(r1->order - r2->order);
+}
+
+/* Search the pattern rules for a rule with an existing dependency to make
+ FILE. If a rule is found, the appropriate commands and deps are put in FILE
+ and 1 is returned. If not, 0 is returned.
+
+ If ARCHIVE is nonzero, FILE->name is of the form "LIB(MEMBER)". A rule for
+ "(MEMBER)" will be searched for, and "(MEMBER)" will not be chopped up into
+ directory and filename parts.
+
+ If an intermediate file is found by pattern search, the intermediate file
+ is set up as a target by the recursive call and is also made a dependency
+ of FILE.
+
+ DEPTH is used for debugging messages. */
+
+static int
+pattern_search (struct file *file, int archive,
+ unsigned int depth, unsigned int recursions)
+{
+ /* Filename we are searching for a rule for. */
+ const char *filename = archive ? strchr (file->name, '(') : file->name;
+
+ /* Length of FILENAME. */
+ unsigned int namelen = strlen (filename);
+
+ /* The last slash in FILENAME (or nil if there is none). */
+ const char *lastslash;
+
+ /* This is a file-object used as an argument in
+ recursive calls. It never contains any data
+ except during a recursive call. */
+ struct file *int_file = 0;
+
+ /* List of dependencies found recursively. */
+ unsigned int max_deps = max_pattern_deps;
+ struct patdeps *deplist = xmalloc (max_deps * sizeof (struct patdeps));
+ struct patdeps *pat = deplist;
+
+ /* Names of possible dependencies are constructed in this buffer. */
+ char *depname = alloca (namelen + max_pattern_dep_length);
+
+ /* The start and length of the stem of FILENAME for the current rule. */
+ const char *stem = 0;
+ unsigned int stemlen = 0;
+ unsigned int fullstemlen = 0;
+
+ /* Buffer in which we store all the rules that are possibly applicable. */
+ struct tryrule *tryrules = xmalloc (num_pattern_rules * max_pattern_targets
+ * sizeof (struct tryrule));
+
+ /* Number of valid elements in TRYRULES. */
+ unsigned int nrules;
+
+ /* The index in TRYRULES of the rule we found. */
+ unsigned int foundrule;
+
+ /* Nonzero if should consider intermediate files as dependencies. */
+ int intermed_ok;
+
+ /* Nonzero if we have initialized file variables for this target. */
+ int file_vars_initialized = 0;
+
+ /* Nonzero if we have matched a pattern-rule target
+ that is not just '%'. */
+ int specific_rule_matched = 0;
+
+ unsigned int ri; /* uninit checks OK */
+ struct rule *rule;
+
+ char *pathdir = NULL;
+ unsigned long pathlen;
+
+ PATH_VAR (stem_str); /* @@ Need to get rid of stem, stemlen, etc. */
+
+#ifndef NO_ARCHIVES
+ if (archive || ar_name (filename))
+ lastslash = 0;
+ else
+#endif
+ {
+ /* Set LASTSLASH to point at the last slash in FILENAME
+ but not counting any slash at the end. (foo/bar/ counts as
+ bar/ in directory foo/, not empty in directory foo/bar/.) */
+ lastslash = strrchr (filename, '/');
+#ifdef VMS
+ if (lastslash == NULL)
+ lastslash = strrchr (filename, ']');
+ if (lastslash == NULL)
+ lastslash = strrchr (filename, '>');
+ if (lastslash == NULL)
+ lastslash = strrchr (filename, ':');
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* Handle backslashes (possibly mixed with forward slashes)
+ and the case of "d:file". */
+ {
+ char *bslash = strrchr (filename, '\\');
+ if (lastslash == 0 || bslash > lastslash)
+ lastslash = bslash;
+ if (lastslash == 0 && filename[0] && filename[1] == ':')
+ lastslash = filename + 1;
+ }
+#endif
+ if (lastslash != 0 && lastslash[1] == '\0')
+ lastslash = 0;
+ }
+
+ pathlen = lastslash - filename + 1;
+
+ /* First see which pattern rules match this target and may be considered.
+ Put them in TRYRULES. */
+
+ nrules = 0;
+ for (rule = pattern_rules; rule != 0; rule = rule->next)
+ {
+ unsigned int ti;
+
+ /* If the pattern rule has deps but no commands, ignore it.
+ Users cancel built-in rules by redefining them without commands. */
+ if (rule->deps != 0 && rule->cmds == 0)
+ continue;
+
+ /* If this rule is in use by a parent pattern_search,
+ don't use it here. */
+ if (rule->in_use)
+ {
+ DBS (DB_IMPLICIT, (_("Avoiding implicit rule recursion.\n")));
+ continue;
+ }
+
+ for (ti = 0; ti < rule->num; ++ti)
+ {
+ const char *target = rule->targets[ti];
+ const char *suffix = rule->suffixes[ti];
+ char check_lastslash;
+
+ /* Rules that can match any filename and are not terminal
+ are ignored if we're recursing, so that they cannot be
+ intermediate files. */
+ if (recursions > 0 && target[1] == '\0' && !rule->terminal)
+ continue;
+
+ if (rule->lens[ti] > namelen)
+ /* It can't possibly match. */
+ continue;
+
+ /* From the lengths of the filename and the pattern parts,
+ find the stem: the part of the filename that matches the %. */
+ stem = filename + (suffix - target - 1);
+ stemlen = namelen - rule->lens[ti] + 1;
+
+ /* Set CHECK_LASTSLASH if FILENAME contains a directory
+ prefix and the target pattern does not contain a slash. */
+
+ check_lastslash = 0;
+ if (lastslash)
+ {
+#ifdef VMS
+ check_lastslash = strpbrk (target, "/]>:") == NULL;
+#else
+ check_lastslash = strchr (target, '/') == 0;
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* Didn't find it yet: check for DOS-type directories. */
+ if (check_lastslash)
+ {
+ char *b = strchr (target, '\\');
+ check_lastslash = !(b || (target[0] && target[1] == ':'));
+ }
+#endif
+ }
+ if (check_lastslash)
+ {
+ /* If so, don't include the directory prefix in STEM here. */
+ if (pathlen > stemlen)
+ continue;
+ stemlen -= pathlen;
+ stem += pathlen;
+ }
+
+ /* Check that the rule pattern matches the text before the stem. */
+ if (check_lastslash)
+ {
+ if (stem > (lastslash + 1)
+ && !strneq (target, lastslash + 1, stem - lastslash - 1))
+ continue;
+ }
+ else if (stem > filename
+ && !strneq (target, filename, stem - filename))
+ continue;
+
+ /* Check that the rule pattern matches the text after the stem.
+ We could test simply use streq, but this way we compare the
+ first two characters immediately. This saves time in the very
+ common case where the first character matches because it is a
+ period. */
+ if (*suffix != stem[stemlen]
+ || (*suffix != '\0' && !streq (&suffix[1], &stem[stemlen + 1])))
+ continue;
+
+ /* Record if we match a rule that not all filenames will match. */
+ if (target[1] != '\0')
+ specific_rule_matched = 1;
+
+ /* A rule with no dependencies and no commands exists solely to set
+ specific_rule_matched when it matches. Don't try to use it. */
+ if (rule->deps == 0 && rule->cmds == 0)
+ continue;
+
+ /* Record this rule in TRYRULES and the index of the matching
+ target in MATCHES. If several targets of the same rule match,
+ that rule will be in TRYRULES more than once. */
+ tryrules[nrules].rule = rule;
+ tryrules[nrules].matches = ti;
+ tryrules[nrules].stemlen = stemlen + (check_lastslash ? pathlen : 0);
+ tryrules[nrules].order = nrules;
+ tryrules[nrules].checked_lastslash = check_lastslash;
+ ++nrules;
+ }
+ }
+
+ /* Bail out early if we haven't found any rules. */
+ if (nrules == 0)
+ goto done;
+
+ /* Sort the rules to place matches with the shortest stem first. This
+ way the most specific rules will be tried first. */
+ if (nrules > 1)
+ qsort (tryrules, nrules, sizeof (struct tryrule), stemlen_compare);
+
+ /* If we have found a matching rule that won't match all filenames,
+ retroactively reject any non-"terminal" rules that do always match. */
+ if (specific_rule_matched)
+ for (ri = 0; ri < nrules; ++ri)
+ if (!tryrules[ri].rule->terminal)
+ {
+ unsigned int j;
+ for (j = 0; j < tryrules[ri].rule->num; ++j)
+ if (tryrules[ri].rule->targets[j][1] == '\0')
+ {
+ tryrules[ri].rule = 0;
+ break;
+ }
+ }
+
+ /* Try each rule once without intermediate files, then once with them. */
+ for (intermed_ok = 0; intermed_ok < 2; ++intermed_ok)
+ {
+ pat = deplist;
+
+ /* Try each pattern rule till we find one that applies. If it does,
+ expand its dependencies (as substituted) and chain them in DEPS. */
+ for (ri = 0; ri < nrules; ri++)
+ {
+ struct dep *dep;
+ char check_lastslash;
+ unsigned int failed = 0;
+ int file_variables_set = 0;
+ unsigned int deps_found = 0;
+ /* NPTR points to the part of the prereq we haven't processed. */
+ const char *nptr = 0;
+ const char *dir = NULL;
+ int order_only = 0;
+ unsigned int matches;
+
+ rule = tryrules[ri].rule;
+
+ /* RULE is nil when we discover that a rule, already placed in
+ TRYRULES, should not be applied. */
+ if (rule == 0)
+ continue;
+
+ /* Reject any terminal rules if we're looking to make intermediate
+ files. */
+ if (intermed_ok && rule->terminal)
+ continue;
+
+ /* From the lengths of the filename and the matching pattern parts,
+ find the stem: the part of the filename that matches the %. */
+ matches = tryrules[ri].matches;
+ stem = filename + (rule->suffixes[matches]
+ - rule->targets[matches]) - 1;
+ stemlen = (namelen - rule->lens[matches]) + 1;
+ check_lastslash = tryrules[ri].checked_lastslash;
+ if (check_lastslash)
+ {
+ stem += pathlen;
+ stemlen -= pathlen;
+
+ /* We need to add the directory prefix, so set it up. */
+ if (! pathdir)
+ {
+ pathdir = alloca (pathlen + 1);
+ memcpy (pathdir, filename, pathlen);
+ pathdir[pathlen] = '\0';
+ }
+ dir = pathdir;
+ }
+
+ if (stemlen > GET_PATH_MAX)
+ {
+ DBS (DB_IMPLICIT, (_("Stem too long: '%.*s'.\n"),
+ (int) stemlen, stem));
+ continue;
+ }
+
+ DBS (DB_IMPLICIT, (_("Trying pattern rule with stem '%.*s'.\n"),
+ (int) stemlen, stem));
+
+ strncpy (stem_str, stem, stemlen);
+ stem_str[stemlen] = '\0';
+
+ /* If there are no prerequisites, then this rule matches. */
+ if (rule->deps == 0)
+ break;
+
+ /* Temporary assign STEM to file->stem (needed to set file
+ variables below). */
+ file->stem = stem_str;
+
+ /* Mark this rule as in use so a recursive pattern_search won't try
+ to use it. */
+ rule->in_use = 1;
+
+ /* Try each prerequisite; see if it exists or can be created. We'll
+ build a list of prereq info in DEPLIST. Due to 2nd expansion we
+ may have to process multiple prereqs for a single dep entry. */
+
+ pat = deplist;
+ dep = rule->deps;
+ nptr = dep_name (dep);
+ while (1)
+ {
+ struct dep *dl, *d;
+ char *p;
+
+ /* If we're out of name to parse, start the next prereq. */
+ if (! nptr)
+ {
+ dep = dep->next;
+ if (dep == 0)
+ break;
+ nptr = dep_name (dep);
+ }
+
+ /* If we don't need a second expansion, just replace the %. */
+ if (! dep->need_2nd_expansion)
+ {
+ p = strchr (nptr, '%');
+ if (p == 0)
+ strcpy (depname, nptr);
+ else
+ {
+ char *o = depname;
+ if (check_lastslash)
+ {
+ memcpy (o, filename, pathlen);
+ o += pathlen;
+ }
+ memcpy (o, nptr, p - nptr);
+ o += p - nptr;
+ memcpy (o, stem_str, stemlen);
+ o += stemlen;
+ strcpy (o, p + 1);
+ }
+
+ /* Parse the expanded string. It might have wildcards. */
+ p = depname;
+ dl = PARSE_SIMPLE_SEQ (&p, struct dep);
+ for (d = dl; d != NULL; d = d->next)
+ {
+ ++deps_found;
+ d->ignore_mtime = dep->ignore_mtime;
+ }
+
+ /* We've used up this dep, so next time get a new one. */
+ nptr = 0;
+ }
+
+ /* We have to perform second expansion on this prereq. In an
+ ideal world we would take the dependency line, substitute the
+ stem, re-expand the whole line and chop it into individual
+ prerequisites. Unfortunately this won't work because of the
+ "check_lastslash" twist. Instead, we will have to go word by
+ word, taking $()'s into account. For each word we will
+ substitute the stem, re-expand, chop it up, and, if
+ check_lastslash != 0, add the directory part to each
+ resulting prerequisite. */
+ else
+ {
+ int add_dir = 0;
+ unsigned int len;
+ struct dep **dptr;
+
+ nptr = get_next_word (nptr, &len);
+ if (nptr == 0)
+ continue;
+
+ /* See this is a transition to order-only prereqs. */
+ if (! order_only && len == 1 && nptr[0] == '|')
+ {
+ order_only = 1;
+ nptr += len;
+ continue;
+ }
+
+ /* If the dependency name has %, substitute the stem. If we
+ just replace % with the stem value then later, when we do
+ the 2nd expansion, we will re-expand this stem value
+ again. This is not good if you have certain characters
+ in your stem (like $).
+
+ Instead, we will replace % with $* and allow the second
+ expansion to take care of it for us. This way (since $*
+ is a simple variable) there won't be additional
+ re-expansion of the stem. */
+
+ p = lindex (nptr, nptr + len, '%');
+ if (p == 0)
+ {
+ memcpy (depname, nptr, len);
+ depname[len] = '\0';
+ }
+ else
+ {
+ unsigned int i = p - nptr;
+ memcpy (depname, nptr, i);
+ memcpy (depname + i, "$*", 2);
+ memcpy (depname + i + 2, p + 1, len - i - 1);
+ depname[len + 2 - 1] = '\0';
+
+ if (check_lastslash)
+ add_dir = 1;
+ }
+
+ /* Set up for the next word. */
+ nptr += len;
+
+ /* Initialize and set file variables if we haven't already
+ done so. */
+ if (!file_vars_initialized)
+ {
+ initialize_file_variables (file, 0);
+ set_file_variables (file);
+ file_vars_initialized = 1;
+ }
+ /* Update the stem value in $* for this rule. */
+ else if (!file_variables_set)
+ {
+ define_variable_for_file (
+ "*", 1, file->stem, o_automatic, 0, file);
+ file_variables_set = 1;
+ }
+
+ /* Perform the 2nd expansion. */
+ p = variable_expand_for_file (depname, file);
+ dptr = &dl;
+
+ /* Parse the results into a deps list. */
+ do
+ {
+ /* Parse the expanded string. */
+ struct dep *dp = PARSE_FILE_SEQ (&p, struct dep,
+ order_only ? MAP_NUL : MAP_PIPE,
+ add_dir ? dir : NULL, PARSEFS_NONE);
+ *dptr = dp;
+
+ for (d = dp; d != NULL; d = d->next)
+ {
+ ++deps_found;
+ if (order_only)
+ d->ignore_mtime = 1;
+ dptr = &d->next;
+ }
+
+ /* If we stopped due to an order-only token, note it. */
+ if (*p == '|')
+ {
+ order_only = 1;
+ ++p;
+ }
+ }
+ while (*p != '\0');
+ }
+
+ /* If there are more than max_pattern_deps prerequisites (due to
+ 2nd expansion), reset it and realloc the arrays. */
+
+ if (deps_found > max_deps)
+ {
+ unsigned int l = pat - deplist;
+ /* This might have changed due to recursion. */
+ max_pattern_deps = MAX(max_pattern_deps, deps_found);
+ max_deps = max_pattern_deps;
+ deplist = xrealloc (deplist,
+ max_deps * sizeof (struct patdeps));
+ pat = deplist + l;
+ }
+
+ /* Go through the nameseq and handle each as a prereq name. */
+ for (d = dl; d != 0; d = d->next)
+ {
+ struct dep *expl_d;
+ int is_rule = d->name == dep_name (dep);
+
+ if (file_impossible_p (d->name))
+ {
+ /* If this prereq has already been ruled "impossible",
+ then the rule fails. Don't bother trying it on the
+ second pass either since we know that will fail. */
+ DBS (DB_IMPLICIT,
+ (is_rule
+ ? _("Rejecting impossible rule prerequisite '%s'.\n")
+ : _("Rejecting impossible implicit prerequisite '%s'.\n"),
+ d->name));
+ tryrules[ri].rule = 0;
+
+ failed = 1;
+ break;
+ }
+
+ memset (pat, '\0', sizeof (struct patdeps));
+ pat->ignore_mtime = d->ignore_mtime;
+
+ DBS (DB_IMPLICIT,
+ (is_rule
+ ? _("Trying rule prerequisite '%s'.\n")
+ : _("Trying implicit prerequisite '%s'.\n"), d->name));
+
+ /* If this prereq is also explicitly mentioned for FILE,
+ skip all tests below since it must be built no matter
+ which implicit rule we choose. */
+
+ for (expl_d = file->deps; expl_d != 0; expl_d = expl_d->next)
+ if (streq (dep_name (expl_d), d->name))
+ break;
+ if (expl_d != 0)
+ {
+ (pat++)->name = d->name;
+ continue;
+ }
+
+ /* The DEP->changed flag says that this dependency resides
+ in a nonexistent directory. So we normally can skip
+ looking for the file. However, if CHECK_LASTSLASH is
+ set, then the dependency file we are actually looking for
+ is in a different directory (the one gotten by prepending
+ FILENAME's directory), so it might actually exist. */
+
+ /* @@ dep->changed check is disabled. */
+ if (lookup_file (d->name) != 0
+ /*|| ((!dep->changed || check_lastslash) && */
+ || file_exists_p (d->name))
+ {
+ (pat++)->name = d->name;
+ continue;
+ }
+
+ /* This code, given FILENAME = "lib/foo.o", dependency name
+ "lib/foo.c", and VPATH=src, searches for
+ "src/lib/foo.c". */
+ {
+ const char *vname = vpath_search (d->name, 0, NULL, NULL);
+ if (vname)
+ {
+ DBS (DB_IMPLICIT,
+ (_("Found prerequisite '%s' as VPATH '%s'\n"),
+ d->name, vname));
+ (pat++)->name = d->name;
+ continue;
+ }
+ }
+
+ /* We could not find the file in any place we should look.
+ Try to make this dependency as an intermediate file, but
+ only on the second pass. */
+
+ if (intermed_ok)
+ {
+ DBS (DB_IMPLICIT,
+ (_("Looking for a rule with intermediate file '%s'.\n"),
+ d->name));
+
+ if (int_file == 0)
+ int_file = alloca (sizeof (struct file));
+ memset (int_file, '\0', sizeof (struct file));
+ int_file->name = d->name;
+
+ if (pattern_search (int_file,
+ 0,
+ depth + 1,
+ recursions + 1))
+ {
+ pat->pattern = int_file->name;
+ int_file->name = d->name;
+ pat->file = int_file;
+ int_file = 0;
+ (pat++)->name = d->name;
+ continue;
+ }
+
+ /* If we have tried to find P as an intermediate file
+ and failed, mark that name as impossible so we won't
+ go through the search again later. */
+ if (int_file->variables)
+ free_variable_set (int_file->variables);
+ if (int_file->pat_variables)
+ free_variable_set (int_file->pat_variables);
+ file_impossible (d->name);
+ }
+
+ /* A dependency of this rule does not exist. Therefore, this
+ rule fails. */
+ failed = 1;
+ break;
+ }
+
+ /* Free the ns chain. */
+ free_dep_chain (dl);
+
+ if (failed)
+ break;
+ }
+
+ /* Reset the stem in FILE. */
+
+ file->stem = 0;
+
+ /* This rule is no longer 'in use' for recursive searches. */
+ rule->in_use = 0;
+
+ if (! failed)
+ /* This pattern rule does apply. Stop looking for one. */
+ break;
+
+ /* This pattern rule does not apply. Keep looking. */
+ }
+
+ /* If we found an applicable rule without intermediate files, don't try
+ with them. */
+ if (ri < nrules)
+ break;
+
+ rule = 0;
+ }
+
+ /* RULE is nil if the loop went through the list but everything failed. */
+ if (rule == 0)
+ goto done;
+
+ foundrule = ri;
+
+ /* If we are recursing, store the pattern that matched FILENAME in
+ FILE->name for use in upper levels. */
+
+ if (recursions > 0)
+ /* Kludge-o-matic */
+ file->name = rule->targets[tryrules[foundrule].matches];
+
+ /* DEPLIST lists the prerequisites for the rule we found. This includes the
+ intermediate files, if any. Convert them into entries on the deps-chain
+ of FILE. */
+
+ while (pat-- > deplist)
+ {
+ struct dep *dep;
+ const char *s;
+
+ if (pat->file != 0)
+ {
+ /* If we need to use an intermediate file, make sure it is entered
+ as a target, with the info that was found for it in the recursive
+ pattern_search call. We know that the intermediate file did not
+ already exist as a target; therefore we can assume that the deps
+ and cmds of F below are null before we change them. */
+
+ struct file *imf = pat->file;
+ struct file *f = lookup_file (imf->name);
+
+ /* We don't want to delete an intermediate file that happened
+ to be a prerequisite of some (other) target. Mark it as
+ secondary. We don't want it to be precious as that disables
+ DELETE_ON_ERROR etc. */
+ if (f != 0)
+ f->secondary = 1;
+ else
+ f = enter_file (imf->name);
+
+ f->deps = imf->deps;
+ f->cmds = imf->cmds;
+ f->stem = imf->stem;
+ f->variables = imf->variables;
+ f->pat_variables = imf->pat_variables;
+ f->pat_searched = imf->pat_searched;
+ f->also_make = imf->also_make;
+ f->is_target = 1;
+ f->intermediate = 1;
+ f->tried_implicit = 1;
+
+ imf = lookup_file (pat->pattern);
+ if (imf != 0 && imf->precious)
+ f->precious = 1;
+
+ for (dep = f->deps; dep != 0; dep = dep->next)
+ {
+ dep->file = enter_file (dep->name);
+ dep->name = 0;
+ dep->file->tried_implicit |= dep->changed;
+ }
+ }
+
+ dep = alloc_dep ();
+ dep->ignore_mtime = pat->ignore_mtime;
+ s = strcache_add (pat->name);
+ if (recursions)
+ dep->name = s;
+ else
+ {
+ dep->file = lookup_file (s);
+ if (dep->file == 0)
+ dep->file = enter_file (s);
+ }
+
+ if (pat->file == 0 && tryrules[foundrule].rule->terminal)
+ {
+ /* If the file actually existed (was not an intermediate file), and
+ the rule that found it was a terminal one, then we want to mark
+ the found file so that it will not have implicit rule search done
+ for it. If we are not entering a 'struct file' for it now, we
+ indicate this with the 'changed' flag. */
+ if (dep->file == 0)
+ dep->changed = 1;
+ else
+ dep->file->tried_implicit = 1;
+ }
+
+ dep->next = file->deps;
+ file->deps = dep;
+ }
+
+ if (!tryrules[foundrule].checked_lastslash)
+ {
+ /* Always allocate new storage, since STEM might be on the stack for an
+ intermediate file. */
+ file->stem = strcache_add_len (stem, stemlen);
+ fullstemlen = stemlen;
+ }
+ else
+ {
+ int dirlen = (lastslash + 1) - filename;
+ char *sp;
+
+ /* We want to prepend the directory from
+ the original FILENAME onto the stem. */
+ fullstemlen = dirlen + stemlen;
+ sp = alloca (fullstemlen + 1);
+ memcpy (sp, filename, dirlen);
+ memcpy (sp + dirlen, stem, stemlen);
+ sp[fullstemlen] = '\0';
+ file->stem = strcache_add (sp);
+ }
+
+ file->cmds = rule->cmds;
+ file->is_target = 1;
+
+ /* Set precious flag. */
+ {
+ struct file *f = lookup_file (rule->targets[tryrules[foundrule].matches]);
+ if (f && f->precious)
+ file->precious = 1;
+ }
+
+ /* If this rule builds other targets, too, put the others into FILE's
+ 'also_make' member. */
+
+ if (rule->num > 1)
+ for (ri = 0; ri < rule->num; ++ri)
+ if (ri != tryrules[foundrule].matches)
+ {
+ char *nm = alloca (rule->lens[ri] + fullstemlen + 1);
+ char *p = nm;
+ struct file *f;
+ struct dep *new = alloc_dep ();
+
+ /* GKM FIMXE: handle '|' here too */
+ memcpy (p, rule->targets[ri],
+ rule->suffixes[ri] - rule->targets[ri] - 1);
+ p += rule->suffixes[ri] - rule->targets[ri] - 1;
+ memcpy (p, file->stem, fullstemlen);
+ p += fullstemlen;
+ memcpy (p, rule->suffixes[ri],
+ rule->lens[ri] - (rule->suffixes[ri] - rule->targets[ri])+1);
+ new->name = strcache_add (nm);
+ new->file = enter_file (new->name);
+ new->next = file->also_make;
+
+ /* Set precious flag. */
+ f = lookup_file (rule->targets[ri]);
+ if (f && f->precious)
+ new->file->precious = 1;
+
+ /* Set the is_target flag so that this file is not treated as
+ intermediate by the pattern rule search algorithm and
+ file_exists_p cannot pick it up yet. */
+ new->file->is_target = 1;
+
+ file->also_make = new;
+ }
+
+ done:
+ free (tryrules);
+ free (deplist);
+
+ return rule != 0;
+}
diff --git a/job.c b/job.c
new file mode 100644
index 0000000..f3a9fdb
--- /dev/null
+++ b/job.c
@@ -0,0 +1,3497 @@
+/* Job execution and handling for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "job.h"
+#include "debug.h"
+#include "filedef.h"
+#include "commands.h"
+#include "variable.h"
+#include "os.h"
+
+#include <string.h>
+
+/* Default shell to use. */
+#ifdef WINDOWS32
+#include <windows.h>
+
+const char *default_shell = "sh.exe";
+int no_default_sh_exe = 1;
+int batch_mode_shell = 1;
+HANDLE main_thread;
+
+#elif defined (_AMIGA)
+
+const char *default_shell = "";
+extern int MyExecute (char **);
+int batch_mode_shell = 0;
+
+#elif defined (__MSDOS__)
+
+/* The default shell is a pointer so we can change it if Makefile
+ says so. It is without an explicit path so we get a chance
+ to search the $PATH for it (since MSDOS doesn't have standard
+ directories we could trust). */
+const char *default_shell = "command.com";
+int batch_mode_shell = 0;
+
+#elif defined (__EMX__)
+
+const char *default_shell = "/bin/sh";
+int batch_mode_shell = 0;
+
+#elif defined (VMS)
+
+# include <descrip.h>
+# include <stsdef.h>
+const char *default_shell = "";
+int batch_mode_shell = 0;
+
+#define strsignal vms_strsignal
+char * vms_strsignal (int status);
+
+#ifndef C_FACILITY_NO
+# define C_FACILITY_NO 0x350000
+#endif
+#ifndef VMS_POSIX_EXIT_MASK
+# define VMS_POSIX_EXIT_MASK (C_FACILITY_NO | 0xA000)
+#endif
+
+#else
+
+const char *default_shell = "/bin/sh";
+int batch_mode_shell = 0;
+
+#endif
+
+#ifdef __MSDOS__
+# include <process.h>
+static int execute_by_shell;
+static int dos_pid = 123;
+int dos_status;
+int dos_command_running;
+#endif /* __MSDOS__ */
+
+#ifdef _AMIGA
+# include <proto/dos.h>
+static int amiga_pid = 123;
+static int amiga_status;
+static char amiga_bname[32];
+static int amiga_batch_file;
+#endif /* Amiga. */
+
+#ifdef VMS
+# ifndef __GNUC__
+# include <processes.h>
+# endif
+# include <starlet.h>
+# include <lib$routines.h>
+static void vmsWaitForChildren (int *);
+#endif
+
+#ifdef WINDOWS32
+# include <windows.h>
+# include <io.h>
+# include <process.h>
+# include "sub_proc.h"
+# include "w32err.h"
+# include "pathstuff.h"
+# define WAIT_NOHANG 1
+#endif /* WINDOWS32 */
+
+#ifdef __EMX__
+# include <process.h>
+#endif
+
+#if defined (HAVE_SYS_WAIT_H) || defined (HAVE_UNION_WAIT)
+# include <sys/wait.h>
+#endif
+
+#ifdef HAVE_WAITPID
+# define WAIT_NOHANG(status) waitpid (-1, (status), WNOHANG)
+#else /* Don't have waitpid. */
+# ifdef HAVE_WAIT3
+# ifndef wait3
+extern int wait3 ();
+# endif
+# define WAIT_NOHANG(status) wait3 ((status), WNOHANG, (struct rusage *) 0)
+# endif /* Have wait3. */
+#endif /* Have waitpid. */
+
+#if !defined (wait) && !defined (POSIX)
+int wait ();
+#endif
+
+#ifndef HAVE_UNION_WAIT
+
+# define WAIT_T int
+
+# ifndef WTERMSIG
+# define WTERMSIG(x) ((x) & 0x7f)
+# endif
+# ifndef WCOREDUMP
+# define WCOREDUMP(x) ((x) & 0x80)
+# endif
+# ifndef WEXITSTATUS
+# define WEXITSTATUS(x) (((x) >> 8) & 0xff)
+# endif
+# ifndef WIFSIGNALED
+# define WIFSIGNALED(x) (WTERMSIG (x) != 0)
+# endif
+# ifndef WIFEXITED
+# define WIFEXITED(x) (WTERMSIG (x) == 0)
+# endif
+
+#else /* Have 'union wait'. */
+
+# define WAIT_T union wait
+# ifndef WTERMSIG
+# define WTERMSIG(x) ((x).w_termsig)
+# endif
+# ifndef WCOREDUMP
+# define WCOREDUMP(x) ((x).w_coredump)
+# endif
+# ifndef WEXITSTATUS
+# define WEXITSTATUS(x) ((x).w_retcode)
+# endif
+# ifndef WIFSIGNALED
+# define WIFSIGNALED(x) (WTERMSIG(x) != 0)
+# endif
+# ifndef WIFEXITED
+# define WIFEXITED(x) (WTERMSIG(x) == 0)
+# endif
+
+#endif /* Don't have 'union wait'. */
+
+#if !defined(HAVE_UNISTD_H) && !defined(WINDOWS32)
+int dup2 ();
+int execve ();
+void _exit ();
+# ifndef VMS
+int geteuid ();
+int getegid ();
+int setgid ();
+int getgid ();
+# endif
+#endif
+
+/* Different systems have different requirements for pid_t.
+ Plus we have to support gettext string translation... Argh. */
+static const char *
+pid2str (pid_t pid)
+{
+ static char pidstring[100];
+#if defined(WINDOWS32) && (__GNUC__ > 3 || _MSC_VER > 1300)
+ /* %Id is only needed for 64-builds, which were not supported by
+ older versions of Windows compilers. */
+ sprintf (pidstring, "%Id", pid);
+#else
+ sprintf (pidstring, "%lu", (unsigned long) pid);
+#endif
+ return pidstring;
+}
+
+#ifndef HAVE_GETLOADAVG
+int getloadavg (double loadavg[], int nelem);
+#endif
+
+static void free_child (struct child *);
+static void start_job_command (struct child *child);
+static int load_too_high (void);
+static int job_next_command (struct child *);
+static int start_waiting_job (struct child *);
+
+/* Chain of all live (or recently deceased) children. */
+
+struct child *children = 0;
+
+/* Number of children currently running. */
+
+unsigned int job_slots_used = 0;
+
+/* Nonzero if the 'good' standard input is in use. */
+
+static int good_stdin_used = 0;
+
+/* Chain of children waiting to run until the load average goes down. */
+
+static struct child *waiting_jobs = 0;
+
+/* Non-zero if we use a *real* shell (always so on Unix). */
+
+int unixy_shell = 1;
+
+/* Number of jobs started in the current second. */
+
+unsigned long job_counter = 0;
+
+/* Number of jobserver tokens this instance is currently using. */
+
+unsigned int jobserver_tokens = 0;
+
+
+#ifdef WINDOWS32
+/*
+ * The macro which references this function is defined in makeint.h.
+ */
+int
+w32_kill (pid_t pid, int sig)
+{
+ return ((process_kill ((HANDLE)pid, sig) == TRUE) ? 0 : -1);
+}
+
+/* This function creates a temporary file name with an extension specified
+ * by the unixy arg.
+ * Return an xmalloc'ed string of a newly created temp file and its
+ * file descriptor, or die. */
+static char *
+create_batch_file (char const *base, int unixy, int *fd)
+{
+ const char *const ext = unixy ? "sh" : "bat";
+ const char *error_string = NULL;
+ char temp_path[MAXPATHLEN]; /* need to know its length */
+ unsigned path_size = GetTempPath (sizeof temp_path, temp_path);
+ int path_is_dot = 0;
+ /* The following variable is static so we won't try to reuse a name
+ that was generated a little while ago, because that file might
+ not be on disk yet, since we use FILE_ATTRIBUTE_TEMPORARY below,
+ which tells the OS it doesn't need to flush the cache to disk.
+ If the file is not yet on disk, we might think the name is
+ available, while it really isn't. This happens in parallel
+ builds, where Make doesn't wait for one job to finish before it
+ launches the next one. */
+ static unsigned uniq = 0;
+ static int second_loop = 0;
+ const unsigned sizemax = strlen (base) + strlen (ext) + 10;
+
+ if (path_size == 0)
+ {
+ path_size = GetCurrentDirectory (sizeof temp_path, temp_path);
+ path_is_dot = 1;
+ }
+
+ ++uniq;
+ if (uniq >= 0x10000 && !second_loop)
+ {
+ /* If we already had 64K batch files in this
+ process, make a second loop through the numbers,
+ looking for free slots, i.e. files that were
+ deleted in the meantime. */
+ second_loop = 1;
+ uniq = 1;
+ }
+ while (path_size > 0 &&
+ path_size + sizemax < sizeof temp_path &&
+ !(uniq >= 0x10000 && second_loop))
+ {
+ unsigned size = sprintf (temp_path + path_size,
+ "%s%s-%x.%s",
+ temp_path[path_size - 1] == '\\' ? "" : "\\",
+ base, uniq, ext);
+ HANDLE h = CreateFile (temp_path, /* file name */
+ GENERIC_READ | GENERIC_WRITE, /* desired access */
+ 0, /* no share mode */
+ NULL, /* default security attributes */
+ CREATE_NEW, /* creation disposition */
+ FILE_ATTRIBUTE_NORMAL | /* flags and attributes */
+ FILE_ATTRIBUTE_TEMPORARY, /* we'll delete it */
+ NULL); /* no template file */
+
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ const DWORD er = GetLastError ();
+
+ if (er == ERROR_FILE_EXISTS || er == ERROR_ALREADY_EXISTS)
+ {
+ ++uniq;
+ if (uniq == 0x10000 && !second_loop)
+ {
+ second_loop = 1;
+ uniq = 1;
+ }
+ }
+
+ /* the temporary path is not guaranteed to exist */
+ else if (path_is_dot == 0)
+ {
+ path_size = GetCurrentDirectory (sizeof temp_path, temp_path);
+ path_is_dot = 1;
+ }
+
+ else
+ {
+ error_string = map_windows32_error_to_string (er);
+ break;
+ }
+ }
+ else
+ {
+ const unsigned final_size = path_size + size + 1;
+ char *const path = xmalloc (final_size);
+ memcpy (path, temp_path, final_size);
+ *fd = _open_osfhandle ((intptr_t)h, 0);
+ if (unixy)
+ {
+ char *p;
+ int ch;
+ for (p = path; (ch = *p) != 0; ++p)
+ if (ch == '\\')
+ *p = '/';
+ }
+ return path; /* good return */
+ }
+ }
+
+ *fd = -1;
+ if (error_string == NULL)
+ error_string = _("Cannot create a temporary file\n");
+ O (fatal, NILF, error_string);
+
+ /* not reached */
+ return NULL;
+}
+#endif /* WINDOWS32 */
+
+#ifdef __EMX__
+/* returns whether path is assumed to be a unix like shell. */
+int
+_is_unixy_shell (const char *path)
+{
+ /* list of non unix shells */
+ const char *known_os2shells[] = {
+ "cmd.exe",
+ "cmd",
+ "4os2.exe",
+ "4os2",
+ "4dos.exe",
+ "4dos",
+ "command.com",
+ "command",
+ NULL
+ };
+
+ /* find the rightmost '/' or '\\' */
+ const char *name = strrchr (path, '/');
+ const char *p = strrchr (path, '\\');
+ unsigned i;
+
+ if (name && p) /* take the max */
+ name = (name > p) ? name : p;
+ else if (p) /* name must be 0 */
+ name = p;
+ else if (!name) /* name and p must be 0 */
+ name = path;
+
+ if (*name == '/' || *name == '\\') name++;
+
+ i = 0;
+ while (known_os2shells[i] != NULL)
+ {
+ if (strcasecmp (name, known_os2shells[i]) == 0)
+ return 0; /* not a unix shell */
+ i++;
+ }
+
+ /* in doubt assume a unix like shell */
+ return 1;
+}
+#endif /* __EMX__ */
+
+/* determines whether path looks to be a Bourne-like shell. */
+int
+is_bourne_compatible_shell (const char *path)
+{
+ /* List of known POSIX (or POSIX-ish) shells. */
+ static const char *unix_shells[] = {
+ "sh",
+ "bash",
+ "ksh",
+ "rksh",
+ "zsh",
+ "ash",
+ "dash",
+ NULL
+ };
+ const char **s;
+
+ /* find the rightmost '/' or '\\' */
+ const char *name = strrchr (path, '/');
+ char *p = strrchr (path, '\\');
+
+ if (name && p) /* take the max */
+ name = (name > p) ? name : p;
+ else if (p) /* name must be 0 */
+ name = p;
+ else if (!name) /* name and p must be 0 */
+ name = path;
+
+ if (*name == '/' || *name == '\\')
+ ++name;
+
+ /* this should be able to deal with extensions on Windows-like systems */
+ for (s = unix_shells; *s != NULL; ++s)
+ {
+#if defined(WINDOWS32) || defined(__MSDOS__)
+ unsigned int len = strlen (*s);
+ if ((strlen (name) >= len && STOP_SET (name[len], MAP_DOT|MAP_NUL))
+ && strncasecmp (name, *s, len) == 0)
+#else
+ if (strcmp (name, *s) == 0)
+#endif
+ return 1; /* a known unix-style shell */
+ }
+
+ /* if not on the list, assume it's not a Bourne-like shell */
+ return 0;
+}
+
+
+/* Write an error message describing the exit status given in
+ EXIT_CODE, EXIT_SIG, and COREDUMP, for the target TARGET_NAME.
+ Append "(ignored)" if IGNORED is nonzero. */
+
+static void
+child_error (struct child *child,
+ int exit_code, int exit_sig, int coredump, int ignored)
+{
+ const char *pre = "*** ";
+ const char *post = "";
+ const char *dump = "";
+ const struct file *f = child->file;
+ const floc *flocp = &f->cmds->fileinfo;
+ const char *nm;
+ size_t l;
+
+ if (ignored && silent_flag)
+ return;
+
+ if (exit_sig && coredump)
+ dump = _(" (core dumped)");
+
+ if (ignored)
+ {
+ pre = "";
+ post = _(" (ignored)");
+ }
+
+ if (! flocp->filenm)
+ nm = _("<builtin>");
+ else
+ {
+ char *a = alloca (strlen (flocp->filenm) + 1 + 11 + 1);
+ sprintf (a, "%s:%lu", flocp->filenm, flocp->lineno + flocp->offset);
+ nm = a;
+ }
+
+ l = strlen (pre) + strlen (nm) + strlen (f->name) + strlen (post);
+
+ OUTPUT_SET (&child->output);
+
+ show_goal_error ();
+
+ if (exit_sig == 0)
+ error (NILF, l + INTSTR_LENGTH,
+ _("%s[%s: %s] Error %d%s"), pre, nm, f->name, exit_code, post);
+ else
+ {
+ const char *s = strsignal (exit_sig);
+ error (NILF, l + strlen (s) + strlen (dump),
+ "%s[%s: %s] %s%s%s", pre, nm, f->name, s, dump, post);
+ }
+
+ OUTPUT_UNSET ();
+}
+
+
+/* Handle a dead child. This handler may or may not ever be installed.
+
+ If we're using the jobserver feature without pselect(), we need it.
+ First, installing it ensures the read will interrupt on SIGCHLD. Second,
+ we close the dup'd read FD to ensure we don't enter another blocking read
+ without reaping all the dead children. In this case we don't need the
+ dead_children count.
+
+ If we don't have either waitpid or wait3, then make is unreliable, but we
+ use the dead_children count to reap children as best we can. */
+
+static unsigned int dead_children = 0;
+
+RETSIGTYPE
+child_handler (int sig UNUSED)
+{
+ ++dead_children;
+
+ jobserver_signal ();
+
+#ifdef __EMX__
+ /* The signal handler must called only once! */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+}
+
+extern pid_t shell_function_pid;
+
+/* Reap all dead children, storing the returned status and the new command
+ state ('cs_finished') in the 'file' member of the 'struct child' for the
+ dead child, and removing the child from the chain. In addition, if BLOCK
+ nonzero, we block in this function until we've reaped at least one
+ complete child, waiting for it to die if necessary. If ERR is nonzero,
+ print an error message first. */
+
+void
+reap_children (int block, int err)
+{
+#ifndef WINDOWS32
+ WAIT_T status;
+#endif
+ /* Initially, assume we have some. */
+ int reap_more = 1;
+
+#ifdef WAIT_NOHANG
+# define REAP_MORE reap_more
+#else
+# define REAP_MORE dead_children
+#endif
+
+ /* As long as:
+
+ We have at least one child outstanding OR a shell function in progress,
+ AND
+ We're blocking for a complete child OR there are more children to reap
+
+ we'll keep reaping children. */
+
+ while ((children != 0 || shell_function_pid != 0)
+ && (block || REAP_MORE))
+ {
+ unsigned int remote = 0;
+ pid_t pid;
+ int exit_code, exit_sig, coredump;
+ struct child *lastc, *c;
+ int child_failed;
+ int any_remote, any_local;
+ int dontcare;
+
+ if (err && block)
+ {
+ static int printed = 0;
+
+ /* We might block for a while, so let the user know why.
+ Only print this message once no matter how many jobs are left. */
+ fflush (stdout);
+ if (!printed)
+ O (error, NILF, _("*** Waiting for unfinished jobs...."));
+ printed = 1;
+ }
+
+ /* We have one less dead child to reap. As noted in
+ child_handler() above, this count is completely unimportant for
+ all modern, POSIX-y systems that support wait3() or waitpid().
+ The rest of this comment below applies only to early, broken
+ pre-POSIX systems. We keep the count only because... it's there...
+
+ The test and decrement are not atomic; if it is compiled into:
+ register = dead_children - 1;
+ dead_children = register;
+ a SIGCHLD could come between the two instructions.
+ child_handler increments dead_children.
+ The second instruction here would lose that increment. But the
+ only effect of dead_children being wrong is that we might wait
+ longer than necessary to reap a child, and lose some parallelism;
+ and we might print the "Waiting for unfinished jobs" message above
+ when not necessary. */
+
+ if (dead_children > 0)
+ --dead_children;
+
+ any_remote = 0;
+ any_local = shell_function_pid != 0;
+ for (c = children; c != 0; c = c->next)
+ {
+ any_remote |= c->remote;
+ any_local |= ! c->remote;
+ DB (DB_JOBS, (_("Live child %p (%s) PID %s %s\n"),
+ c, c->file->name, pid2str (c->pid),
+ c->remote ? _(" (remote)") : ""));
+#ifdef VMS
+ break;
+#endif
+ }
+
+ /* First, check for remote children. */
+ if (any_remote)
+ pid = remote_status (&exit_code, &exit_sig, &coredump, 0);
+ else
+ pid = 0;
+
+ if (pid > 0)
+ /* We got a remote child. */
+ remote = 1;
+ else if (pid < 0)
+ {
+ /* A remote status command failed miserably. Punt. */
+ remote_status_lose:
+ pfatal_with_name ("remote_status");
+ }
+ else
+ {
+ /* No remote children. Check for local children. */
+#if !defined(__MSDOS__) && !defined(_AMIGA) && !defined(WINDOWS32)
+ if (any_local)
+ {
+#ifdef VMS
+ /* Todo: This needs more untangling multi-process support */
+ /* Just do single child process support now */
+ vmsWaitForChildren (&status);
+ pid = c->pid;
+
+ /* VMS failure status can not be fully translated */
+ status = $VMS_STATUS_SUCCESS (c->cstatus) ? 0 : (1 << 8);
+
+ /* A Posix failure can be exactly translated */
+ if ((c->cstatus & VMS_POSIX_EXIT_MASK) == VMS_POSIX_EXIT_MASK)
+ status = (c->cstatus >> 3 & 255) << 8;
+#else
+#ifdef WAIT_NOHANG
+ if (!block)
+ pid = WAIT_NOHANG (&status);
+ else
+#endif
+ EINTRLOOP (pid, wait (&status));
+#endif /* !VMS */
+ }
+ else
+ pid = 0;
+
+ if (pid < 0)
+ {
+ /* The wait*() failed miserably. Punt. */
+ pfatal_with_name ("wait");
+ }
+ else if (pid > 0)
+ {
+ /* We got a child exit; chop the status word up. */
+ exit_code = WEXITSTATUS (status);
+ exit_sig = WIFSIGNALED (status) ? WTERMSIG (status) : 0;
+ coredump = WCOREDUMP (status);
+
+ /* If we have started jobs in this second, remove one. */
+ if (job_counter)
+ --job_counter;
+ }
+ else
+ {
+ /* No local children are dead. */
+ reap_more = 0;
+
+ if (!block || !any_remote)
+ break;
+
+ /* Now try a blocking wait for a remote child. */
+ pid = remote_status (&exit_code, &exit_sig, &coredump, 1);
+ if (pid < 0)
+ goto remote_status_lose;
+ else if (pid == 0)
+ /* No remote children either. Finally give up. */
+ break;
+
+ /* We got a remote child. */
+ remote = 1;
+ }
+#endif /* !__MSDOS__, !Amiga, !WINDOWS32. */
+
+#ifdef __MSDOS__
+ /* Life is very different on MSDOS. */
+ pid = dos_pid - 1;
+ status = dos_status;
+ exit_code = WEXITSTATUS (status);
+ if (exit_code == 0xff)
+ exit_code = -1;
+ exit_sig = WIFSIGNALED (status) ? WTERMSIG (status) : 0;
+ coredump = 0;
+#endif /* __MSDOS__ */
+#ifdef _AMIGA
+ /* Same on Amiga */
+ pid = amiga_pid - 1;
+ status = amiga_status;
+ exit_code = amiga_status;
+ exit_sig = 0;
+ coredump = 0;
+#endif /* _AMIGA */
+#ifdef WINDOWS32
+ {
+ HANDLE hPID;
+ HANDLE hcTID, hcPID;
+ DWORD dwWaitStatus = 0;
+ exit_code = 0;
+ exit_sig = 0;
+ coredump = 0;
+
+ /* Record the thread ID of the main process, so that we
+ could suspend it in the signal handler. */
+ if (!main_thread)
+ {
+ hcTID = GetCurrentThread ();
+ hcPID = GetCurrentProcess ();
+ if (!DuplicateHandle (hcPID, hcTID, hcPID, &main_thread, 0,
+ FALSE, DUPLICATE_SAME_ACCESS))
+ {
+ DWORD e = GetLastError ();
+ fprintf (stderr,
+ "Determine main thread ID (Error %ld: %s)\n",
+ e, map_windows32_error_to_string (e));
+ }
+ else
+ DB (DB_VERBOSE, ("Main thread handle = %p\n", main_thread));
+ }
+
+ /* wait for anything to finish */
+ hPID = process_wait_for_any (block, &dwWaitStatus);
+ if (hPID)
+ {
+ /* was an error found on this process? */
+ int werr = process_last_err (hPID);
+
+ /* get exit data */
+ exit_code = process_exit_code (hPID);
+
+ if (werr)
+ fprintf (stderr, "make (e=%d): %s", exit_code,
+ map_windows32_error_to_string (exit_code));
+
+ /* signal */
+ exit_sig = process_signal (hPID);
+
+ /* cleanup process */
+ process_cleanup (hPID);
+
+ coredump = 0;
+ }
+ else if (dwWaitStatus == WAIT_FAILED)
+ {
+ /* The WaitForMultipleObjects() failed miserably. Punt. */
+ pfatal_with_name ("WaitForMultipleObjects");
+ }
+ else if (dwWaitStatus == WAIT_TIMEOUT)
+ {
+ /* No child processes are finished. Give up waiting. */
+ reap_more = 0;
+ break;
+ }
+
+ pid = (pid_t) hPID;
+ }
+#endif /* WINDOWS32 */
+ }
+
+ /* Check if this is the child of the 'shell' function. */
+ if (!remote && pid == shell_function_pid)
+ {
+ shell_completed (exit_code, exit_sig);
+ break;
+ }
+
+ /* Search for a child matching the deceased one. */
+ lastc = 0;
+ for (c = children; c != 0; lastc = c, c = c->next)
+ if (c->pid == pid && c->remote == remote)
+ break;
+
+ if (c == 0)
+ /* An unknown child died.
+ Ignore it; it was inherited from our invoker. */
+ continue;
+
+ /* Determine the failure status: 0 for success, 1 for updating target in
+ question mode, 2 for anything else. */
+ if (exit_sig == 0 && exit_code == 0)
+ child_failed = MAKE_SUCCESS;
+ else if (exit_sig == 0 && exit_code == 1 && question_flag && c->recursive)
+ child_failed = MAKE_TROUBLE;
+ else
+ child_failed = MAKE_FAILURE;
+
+ DB (DB_JOBS, (child_failed
+ ? _("Reaping losing child %p PID %s %s\n")
+ : _("Reaping winning child %p PID %s %s\n"),
+ c, pid2str (c->pid), c->remote ? _(" (remote)") : ""));
+
+ if (c->sh_batch_file)
+ {
+ int rm_status;
+
+ DB (DB_JOBS, (_("Cleaning up temp batch file %s\n"),
+ c->sh_batch_file));
+
+ errno = 0;
+ rm_status = remove (c->sh_batch_file);
+ if (rm_status)
+ DB (DB_JOBS, (_("Cleaning up temp batch file %s failed (%d)\n"),
+ c->sh_batch_file, errno));
+
+ /* all done with memory */
+ free (c->sh_batch_file);
+ c->sh_batch_file = NULL;
+ }
+
+ /* If this child had the good stdin, say it is now free. */
+ if (c->good_stdin)
+ good_stdin_used = 0;
+
+ dontcare = c->dontcare;
+
+ if (child_failed && !c->noerror && !ignore_errors_flag)
+ {
+ /* The commands failed. Write an error message,
+ delete non-precious targets, and abort. */
+ static int delete_on_error = -1;
+
+ if (!dontcare && child_failed == MAKE_FAILURE)
+ child_error (c, exit_code, exit_sig, coredump, 0);
+
+ c->file->update_status = child_failed == MAKE_FAILURE ? us_failed : us_question;
+ if (delete_on_error == -1)
+ {
+ struct file *f = lookup_file (".DELETE_ON_ERROR");
+ delete_on_error = f != 0 && f->is_target;
+ }
+ if (exit_sig != 0 || delete_on_error)
+ delete_child_targets (c);
+ }
+ else
+ {
+ if (child_failed)
+ {
+ /* The commands failed, but we don't care. */
+ child_error (c, exit_code, exit_sig, coredump, 1);
+ child_failed = 0;
+ }
+
+ /* If there are more commands to run, try to start them. */
+ if (job_next_command (c))
+ {
+ if (handling_fatal_signal)
+ {
+ /* Never start new commands while we are dying.
+ Since there are more commands that wanted to be run,
+ the target was not completely remade. So we treat
+ this as if a command had failed. */
+ c->file->update_status = us_failed;
+ }
+ else
+ {
+#ifndef NO_OUTPUT_SYNC
+ /* If we're sync'ing per line, write the previous line's
+ output before starting the next one. */
+ if (output_sync == OUTPUT_SYNC_LINE)
+ output_dump (&c->output);
+#endif
+ /* Check again whether to start remotely.
+ Whether or not we want to changes over time.
+ Also, start_remote_job may need state set up
+ by start_remote_job_p. */
+ c->remote = start_remote_job_p (0);
+ start_job_command (c);
+ /* Fatal signals are left blocked in case we were
+ about to put that child on the chain. But it is
+ already there, so it is safe for a fatal signal to
+ arrive now; it will clean up this child's targets. */
+ unblock_sigs ();
+ if (c->file->command_state == cs_running)
+ /* We successfully started the new command.
+ Loop to reap more children. */
+ continue;
+ }
+
+ if (c->file->update_status != us_success)
+ /* We failed to start the commands. */
+ delete_child_targets (c);
+ }
+ else
+ /* There are no more commands. We got through them all
+ without an unignored error. Now the target has been
+ successfully updated. */
+ c->file->update_status = us_success;
+ }
+
+ /* When we get here, all the commands for c->file are finished. */
+
+#ifndef NO_OUTPUT_SYNC
+ /* Synchronize any remaining parallel output. */
+ output_dump (&c->output);
+#endif
+
+ /* At this point c->file->update_status is success or failed. But
+ c->file->command_state is still cs_running if all the commands
+ ran; notice_finish_file looks for cs_running to tell it that
+ it's interesting to check the file's modtime again now. */
+
+ if (! handling_fatal_signal)
+ /* Notice if the target of the commands has been changed.
+ This also propagates its values for command_state and
+ update_status to its also_make files. */
+ notice_finished_file (c->file);
+
+ DB (DB_JOBS, (_("Removing child %p PID %s%s from chain.\n"),
+ c, pid2str (c->pid), c->remote ? _(" (remote)") : ""));
+
+ /* Block fatal signals while frobnicating the list, so that
+ children and job_slots_used are always consistent. Otherwise
+ a fatal signal arriving after the child is off the chain and
+ before job_slots_used is decremented would believe a child was
+ live and call reap_children again. */
+ block_sigs ();
+
+ /* There is now another slot open. */
+ if (job_slots_used > 0)
+ --job_slots_used;
+
+ /* Remove the child from the chain and free it. */
+ if (lastc == 0)
+ children = c->next;
+ else
+ lastc->next = c->next;
+
+ free_child (c);
+
+ unblock_sigs ();
+
+ /* If the job failed, and the -k flag was not given, die,
+ unless we are already in the process of dying. */
+ if (!err && child_failed && !dontcare && !keep_going_flag &&
+ /* fatal_error_signal will die with the right signal. */
+ !handling_fatal_signal)
+ die (child_failed);
+
+ /* Only block for one child. */
+ block = 0;
+ }
+
+ return;
+}
+
+/* Free the storage allocated for CHILD. */
+
+static void
+free_child (struct child *child)
+{
+ output_close (&child->output);
+
+ if (!jobserver_tokens)
+ ONS (fatal, NILF, "INTERNAL: Freeing child %p (%s) but no tokens left!\n",
+ child, child->file->name);
+
+ /* If we're using the jobserver and this child is not the only outstanding
+ job, put a token back into the pipe for it. */
+
+ if (jobserver_enabled () && jobserver_tokens > 1)
+ {
+ jobserver_release (1);
+ DB (DB_JOBS, (_("Released token for child %p (%s).\n"),
+ child, child->file->name));
+ }
+
+ --jobserver_tokens;
+
+ if (handling_fatal_signal) /* Don't bother free'ing if about to die. */
+ return;
+
+ if (child->command_lines != 0)
+ {
+ register unsigned int i;
+ for (i = 0; i < child->file->cmds->ncommand_lines; ++i)
+ free (child->command_lines[i]);
+ free (child->command_lines);
+ }
+
+ if (child->environment != 0)
+ {
+ register char **ep = child->environment;
+ while (*ep != 0)
+ free (*ep++);
+ free (child->environment);
+ }
+
+ free (child);
+}
+
+#ifdef POSIX
+extern sigset_t fatal_signal_set;
+#endif
+
+void
+block_sigs (void)
+{
+#ifdef POSIX
+ (void) sigprocmask (SIG_BLOCK, &fatal_signal_set, (sigset_t *) 0);
+#else
+# ifdef HAVE_SIGSETMASK
+ (void) sigblock (fatal_signal_mask);
+# endif
+#endif
+}
+
+#ifdef POSIX
+void
+unblock_sigs (void)
+{
+ sigset_t empty;
+ sigemptyset (&empty);
+ sigprocmask (SIG_SETMASK, &empty, (sigset_t *) 0);
+}
+#endif
+
+
+/* Start a job to run the commands specified in CHILD.
+ CHILD is updated to reflect the commands and ID of the child process.
+
+ NOTE: On return fatal signals are blocked! The caller is responsible
+ for calling 'unblock_sigs', once the new child is safely on the chain so
+ it can be cleaned up in the event of a fatal signal. */
+
+static void
+start_job_command (struct child *child)
+{
+ int flags;
+ char *p;
+#ifdef VMS
+ char *argv;
+#else
+ char **argv;
+#endif
+
+ /* If we have a completely empty commandset, stop now. */
+ if (!child->command_ptr)
+ goto next_command;
+
+ /* Combine the flags parsed for the line itself with
+ the flags specified globally for this target. */
+ flags = (child->file->command_flags
+ | child->file->cmds->lines_flags[child->command_line - 1]);
+
+ p = child->command_ptr;
+ child->noerror = ((flags & COMMANDS_NOERROR) != 0);
+
+ while (*p != '\0')
+ {
+ if (*p == '@')
+ flags |= COMMANDS_SILENT;
+ else if (*p == '+')
+ flags |= COMMANDS_RECURSE;
+ else if (*p == '-')
+ child->noerror = 1;
+ /* Don't skip newlines. */
+ else if (!ISBLANK (*p))
+ break;
+ ++p;
+ }
+
+ child->recursive = ((flags & COMMANDS_RECURSE) != 0);
+
+ /* Update the file's command flags with any new ones we found. We only
+ keep the COMMANDS_RECURSE setting. Even this isn't 100% correct; we are
+ now marking more commands recursive than should be in the case of
+ multiline define/endef scripts where only one line is marked "+". In
+ order to really fix this, we'll have to keep a lines_flags for every
+ actual line, after expansion. */
+ child->file->cmds->lines_flags[child->command_line - 1] |= flags & COMMANDS_RECURSE;
+
+ /* POSIX requires that a recipe prefix after a backslash-newline should
+ be ignored. Remove it now so the output is correct. */
+ {
+ char prefix = child->file->cmds->recipe_prefix;
+ char *p1, *p2;
+ p1 = p2 = p;
+ while (*p1 != '\0')
+ {
+ *(p2++) = *p1;
+ if (p1[0] == '\n' && p1[1] == prefix)
+ ++p1;
+ ++p1;
+ }
+ *p2 = *p1;
+ }
+
+ /* Figure out an argument list from this command line. */
+ {
+ char *end = 0;
+#ifdef VMS
+ /* Skip any leading whitespace */
+ while (*p)
+ {
+ if (!ISSPACE (*p))
+ {
+ if (*p != '\\')
+ break;
+ if ((p[1] != '\n') && (p[1] != 'n') && (p[1] != 't'))
+ break;
+ }
+ p++;
+ }
+
+ argv = p;
+ /* Although construct_command_argv contains some code for VMS, it was/is
+ not called/used. Please note, for VMS argv is a string (not an array
+ of strings) which contains the complete command line, which for
+ multi-line variables still includes the newlines. So detect newlines
+ and set 'end' (which is used for child->command_ptr) instead of
+ (re-)writing construct_command_argv */
+ if (!one_shell)
+ {
+ char *s = p;
+ int instring = 0;
+ while (*s)
+ {
+ if (*s == '"')
+ instring = !instring;
+ else if (*s == '\\' && !instring && *(s+1) != 0)
+ s++;
+ else if (*s == '\n' && !instring)
+ {
+ end = s;
+ break;
+ }
+ ++s;
+ }
+ }
+#else
+ argv = construct_command_argv (p, &end, child->file,
+ child->file->cmds->lines_flags[child->command_line - 1],
+ &child->sh_batch_file);
+#endif
+ if (end == NULL)
+ child->command_ptr = NULL;
+ else
+ {
+ *end++ = '\0';
+ child->command_ptr = end;
+ }
+ }
+
+ /* If -q was given, say that updating 'failed' if there was any text on the
+ command line, or 'succeeded' otherwise. The exit status of 1 tells the
+ user that -q is saying 'something to do'; the exit status for a random
+ error is 2. */
+ if (argv != 0 && question_flag && !(flags & COMMANDS_RECURSE))
+ {
+#ifndef VMS
+ free (argv[0]);
+ free (argv);
+#endif
+#ifdef VMS
+ /* On VMS, argv[0] can be a null string here */
+ if (argv[0] != 0)
+ {
+#endif
+ child->file->update_status = us_question;
+ notice_finished_file (child->file);
+ return;
+#ifdef VMS
+ }
+#endif
+ }
+
+ if (touch_flag && !(flags & COMMANDS_RECURSE))
+ {
+ /* Go on to the next command. It might be the recursive one.
+ We construct ARGV only to find the end of the command line. */
+#ifndef VMS
+ if (argv)
+ {
+ free (argv[0]);
+ free (argv);
+ }
+#endif
+ argv = 0;
+ }
+
+ if (argv == 0)
+ {
+ next_command:
+#ifdef __MSDOS__
+ execute_by_shell = 0; /* in case construct_command_argv sets it */
+#endif
+ /* This line has no commands. Go to the next. */
+ if (job_next_command (child))
+ start_job_command (child);
+ else
+ {
+ /* No more commands. Make sure we're "running"; we might not be if
+ (e.g.) all commands were skipped due to -n. */
+ set_command_state (child->file, cs_running);
+ child->file->update_status = us_success;
+ notice_finished_file (child->file);
+ }
+
+ OUTPUT_UNSET();
+ return;
+ }
+
+ /* Are we going to synchronize this command's output? Do so if either we're
+ in SYNC_RECURSE mode or this command is not recursive. We'll also check
+ output_sync separately below in case it changes due to error. */
+ child->output.syncout = output_sync && (output_sync == OUTPUT_SYNC_RECURSE
+ || !(flags & COMMANDS_RECURSE));
+
+ OUTPUT_SET (&child->output);
+
+#ifndef NO_OUTPUT_SYNC
+ if (! child->output.syncout)
+ /* We don't want to sync this command: to avoid misordered
+ output ensure any already-synced content is written. */
+ output_dump (&child->output);
+#endif
+
+ /* Print the command if appropriate. */
+ if (just_print_flag || trace_flag
+ || (!(flags & COMMANDS_SILENT) && !silent_flag))
+ OS (message, 0, "%s", p);
+
+ /* Tell update_goal_chain that a command has been started on behalf of
+ this target. It is important that this happens here and not in
+ reap_children (where we used to do it), because reap_children might be
+ reaping children from a different target. We want this increment to
+ guaranteedly indicate that a command was started for the dependency
+ chain (i.e., update_file recursion chain) we are processing. */
+
+ ++commands_started;
+
+ /* Optimize an empty command. People use this for timestamp rules,
+ so avoid forking a useless shell. Do this after we increment
+ commands_started so make still treats this special case as if it
+ performed some action (makes a difference as to what messages are
+ printed, etc. */
+
+#if !defined(VMS) && !defined(_AMIGA)
+ if (
+#if defined __MSDOS__ || defined (__EMX__)
+ unixy_shell /* the test is complicated and we already did it */
+#else
+ (argv[0] && is_bourne_compatible_shell (argv[0]))
+#endif
+ && (argv[1] && argv[1][0] == '-'
+ &&
+ ((argv[1][1] == 'c' && argv[1][2] == '\0')
+ ||
+ (argv[1][1] == 'e' && argv[1][2] == 'c' && argv[1][3] == '\0')))
+ && (argv[2] && argv[2][0] == ':' && argv[2][1] == '\0')
+ && argv[3] == NULL)
+ {
+ free (argv[0]);
+ free (argv);
+ goto next_command;
+ }
+#endif /* !VMS && !_AMIGA */
+
+ /* If -n was given, recurse to get the next line in the sequence. */
+
+ if (just_print_flag && !(flags & COMMANDS_RECURSE))
+ {
+#ifndef VMS
+ free (argv[0]);
+ free (argv);
+#endif
+ goto next_command;
+ }
+
+ /* We're sure we're going to invoke a command: set up the output. */
+ output_start ();
+
+ /* Flush the output streams so they won't have things written twice. */
+
+ fflush (stdout);
+ fflush (stderr);
+
+ /* Decide whether to give this child the 'good' standard input
+ (one that points to the terminal or whatever), or the 'bad' one
+ that points to the read side of a broken pipe. */
+
+ child->good_stdin = !good_stdin_used;
+ if (child->good_stdin)
+ good_stdin_used = 1;
+
+ child->deleted = 0;
+
+#ifndef _AMIGA
+ /* Set up the environment for the child. */
+ if (child->environment == 0)
+ child->environment = target_environment (child->file);
+#endif
+
+#if !defined(__MSDOS__) && !defined(_AMIGA) && !defined(WINDOWS32)
+
+#ifndef VMS
+ /* start_waiting_job has set CHILD->remote if we can start a remote job. */
+ if (child->remote)
+ {
+ int is_remote, id, used_stdin;
+ if (start_remote_job (argv, child->environment,
+ child->good_stdin ? 0 : get_bad_stdin (),
+ &is_remote, &id, &used_stdin))
+ /* Don't give up; remote execution may fail for various reasons. If
+ so, simply run the job locally. */
+ goto run_local;
+ else
+ {
+ if (child->good_stdin && !used_stdin)
+ {
+ child->good_stdin = 0;
+ good_stdin_used = 0;
+ }
+ child->remote = is_remote;
+ child->pid = id;
+ }
+ }
+ else
+#endif /* !VMS */
+ {
+ /* Fork the child process. */
+
+ char **parent_environ;
+
+ run_local:
+ block_sigs ();
+
+ child->remote = 0;
+
+#ifdef VMS
+ if (!child_execute_job (child, argv))
+ {
+ /* Fork failed! */
+ perror_with_name ("fork", "");
+ goto error;
+ }
+
+#else
+
+ parent_environ = environ;
+
+ jobserver_pre_child (flags & COMMANDS_RECURSE);
+
+ child->pid = child_execute_job (&child->output, child->good_stdin, argv, child->environment);
+
+ environ = parent_environ; /* Restore value child may have clobbered. */
+ jobserver_post_child (flags & COMMANDS_RECURSE);
+
+ if (child->pid < 0)
+ {
+ /* Fork failed! */
+ unblock_sigs ();
+ perror_with_name ("fork", "");
+ goto error;
+ }
+#endif /* !VMS */
+ }
+
+#else /* __MSDOS__ or Amiga or WINDOWS32 */
+#ifdef __MSDOS__
+ {
+ int proc_return;
+
+ block_sigs ();
+ dos_status = 0;
+
+ /* We call 'system' to do the job of the SHELL, since stock DOS
+ shell is too dumb. Our 'system' knows how to handle long
+ command lines even if pipes/redirection is needed; it will only
+ call COMMAND.COM when its internal commands are used. */
+ if (execute_by_shell)
+ {
+ char *cmdline = argv[0];
+ /* We don't have a way to pass environment to 'system',
+ so we need to save and restore ours, sigh... */
+ char **parent_environ = environ;
+
+ environ = child->environment;
+
+ /* If we have a *real* shell, tell 'system' to call
+ it to do everything for us. */
+ if (unixy_shell)
+ {
+ /* A *real* shell on MSDOS may not support long
+ command lines the DJGPP way, so we must use 'system'. */
+ cmdline = argv[2]; /* get past "shell -c" */
+ }
+
+ dos_command_running = 1;
+ proc_return = system (cmdline);
+ environ = parent_environ;
+ execute_by_shell = 0; /* for the next time */
+ }
+ else
+ {
+ dos_command_running = 1;
+ proc_return = spawnvpe (P_WAIT, argv[0], argv, child->environment);
+ }
+
+ /* Need to unblock signals before turning off
+ dos_command_running, so that child's signals
+ will be treated as such (see fatal_error_signal). */
+ unblock_sigs ();
+ dos_command_running = 0;
+
+ /* If the child got a signal, dos_status has its
+ high 8 bits set, so be careful not to alter them. */
+ if (proc_return == -1)
+ dos_status |= 0xff;
+ else
+ dos_status |= (proc_return & 0xff);
+ ++dead_children;
+ child->pid = dos_pid++;
+ }
+#endif /* __MSDOS__ */
+#ifdef _AMIGA
+ amiga_status = MyExecute (argv);
+
+ ++dead_children;
+ child->pid = amiga_pid++;
+ if (amiga_batch_file)
+ {
+ amiga_batch_file = 0;
+ DeleteFile (amiga_bname); /* Ignore errors. */
+ }
+#endif /* Amiga */
+#ifdef WINDOWS32
+ {
+ HANDLE hPID;
+ char* arg0;
+ int outfd = FD_STDOUT;
+ int errfd = FD_STDERR;
+
+ /* make UNC paths safe for CreateProcess -- backslash format */
+ arg0 = argv[0];
+ if (arg0 && arg0[0] == '/' && arg0[1] == '/')
+ for ( ; arg0 && *arg0; arg0++)
+ if (*arg0 == '/')
+ *arg0 = '\\';
+
+ /* make sure CreateProcess() has Path it needs */
+ sync_Path_environment ();
+
+#ifndef NO_OUTPUT_SYNC
+ /* Divert child output if output_sync in use. */
+ if (child->output.syncout)
+ {
+ if (child->output.out >= 0)
+ outfd = child->output.out;
+ if (child->output.err >= 0)
+ errfd = child->output.err;
+ }
+#else
+ outfd = errfd = -1;
+#endif
+ hPID = process_easy (argv, child->environment, outfd, errfd);
+
+ if (hPID != INVALID_HANDLE_VALUE)
+ child->pid = (pid_t) hPID;
+ else
+ {
+ int i;
+ unblock_sigs ();
+ fprintf (stderr,
+ _("process_easy() failed to launch process (e=%ld)\n"),
+ process_last_err (hPID));
+ for (i = 0; argv[i]; i++)
+ fprintf (stderr, "%s ", argv[i]);
+ fprintf (stderr, _("\nCounted %d args in failed launch\n"), i);
+ goto error;
+ }
+ }
+#endif /* WINDOWS32 */
+#endif /* __MSDOS__ or Amiga or WINDOWS32 */
+
+ /* Bump the number of jobs started in this second. */
+ ++job_counter;
+
+ /* We are the parent side. Set the state to
+ say the commands are running and return. */
+
+ set_command_state (child->file, cs_running);
+
+ /* Free the storage used by the child's argument list. */
+#ifndef VMS
+ free (argv[0]);
+ free (argv);
+#endif
+
+ OUTPUT_UNSET();
+ return;
+
+ error:
+ child->file->update_status = us_failed;
+ notice_finished_file (child->file);
+ OUTPUT_UNSET();
+}
+
+/* Try to start a child running.
+ Returns nonzero if the child was started (and maybe finished), or zero if
+ the load was too high and the child was put on the 'waiting_jobs' chain. */
+
+static int
+start_waiting_job (struct child *c)
+{
+ struct file *f = c->file;
+
+ /* If we can start a job remotely, we always want to, and don't care about
+ the local load average. We record that the job should be started
+ remotely in C->remote for start_job_command to test. */
+
+ c->remote = start_remote_job_p (1);
+
+ /* If we are running at least one job already and the load average
+ is too high, make this one wait. */
+ if (!c->remote
+ && ((job_slots_used > 0 && load_too_high ())
+#ifdef WINDOWS32
+ || (process_used_slots () >= MAXIMUM_WAIT_OBJECTS)
+#endif
+ ))
+ {
+ /* Put this child on the chain of children waiting for the load average
+ to go down. */
+ set_command_state (f, cs_running);
+ c->next = waiting_jobs;
+ waiting_jobs = c;
+ return 0;
+ }
+
+ /* Start the first command; reap_children will run later command lines. */
+ start_job_command (c);
+
+ switch (f->command_state)
+ {
+ case cs_running:
+ c->next = children;
+ DB (DB_JOBS, (_("Putting child %p (%s) PID %s%s on the chain.\n"),
+ c, c->file->name, pid2str (c->pid),
+ c->remote ? _(" (remote)") : ""));
+ children = c;
+ /* One more job slot is in use. */
+ ++job_slots_used;
+ unblock_sigs ();
+ break;
+
+ case cs_not_started:
+ /* All the command lines turned out to be empty. */
+ f->update_status = us_success;
+ /* FALLTHROUGH */
+
+ case cs_finished:
+ notice_finished_file (f);
+ free_child (c);
+ break;
+
+ default:
+ assert (f->command_state == cs_finished);
+ break;
+ }
+
+ return 1;
+}
+
+/* Create a 'struct child' for FILE and start its commands running. */
+
+void
+new_job (struct file *file)
+{
+ struct commands *cmds = file->cmds;
+ struct child *c;
+ char **lines;
+ unsigned int i;
+
+ /* Let any previously decided-upon jobs that are waiting
+ for the load to go down start before this new one. */
+ start_waiting_jobs ();
+
+ /* Reap any children that might have finished recently. */
+ reap_children (0, 0);
+
+ /* Chop the commands up into lines if they aren't already. */
+ chop_commands (cmds);
+
+ /* Start the command sequence, record it in a new
+ 'struct child', and add that to the chain. */
+
+ c = xcalloc (sizeof (struct child));
+ output_init (&c->output);
+
+ c->file = file;
+ c->sh_batch_file = NULL;
+
+ /* Cache dontcare flag because file->dontcare can be changed once we
+ return. Check dontcare inheritance mechanism for details. */
+ c->dontcare = file->dontcare;
+
+ /* Start saving output in case the expansion uses $(info ...) etc. */
+ OUTPUT_SET (&c->output);
+
+ /* Expand the command lines and store the results in LINES. */
+ lines = xmalloc (cmds->ncommand_lines * sizeof (char *));
+ for (i = 0; i < cmds->ncommand_lines; ++i)
+ {
+ /* Collapse backslash-newline combinations that are inside variable
+ or function references. These are left alone by the parser so
+ that they will appear in the echoing of commands (where they look
+ nice); and collapsed by construct_command_argv when it tokenizes.
+ But letting them survive inside function invocations loses because
+ we don't want the functions to see them as part of the text. */
+
+ char *in, *out, *ref;
+
+ /* IN points to where in the line we are scanning.
+ OUT points to where in the line we are writing.
+ When we collapse a backslash-newline combination,
+ IN gets ahead of OUT. */
+
+ in = out = cmds->command_lines[i];
+ while ((ref = strchr (in, '$')) != 0)
+ {
+ ++ref; /* Move past the $. */
+
+ if (out != in)
+ /* Copy the text between the end of the last chunk
+ we processed (where IN points) and the new chunk
+ we are about to process (where REF points). */
+ memmove (out, in, ref - in);
+
+ /* Move both pointers past the boring stuff. */
+ out += ref - in;
+ in = ref;
+
+ if (*ref == '(' || *ref == '{')
+ {
+ char openparen = *ref;
+ char closeparen = openparen == '(' ? ')' : '}';
+ char *outref;
+ int count;
+ char *p;
+
+ *out++ = *in++; /* Copy OPENPAREN. */
+ outref = out;
+ /* IN now points past the opening paren or brace.
+ Count parens or braces until it is matched. */
+ count = 0;
+ while (*in != '\0')
+ {
+ if (*in == closeparen && --count < 0)
+ break;
+ else if (*in == '\\' && in[1] == '\n')
+ {
+ /* We have found a backslash-newline inside a
+ variable or function reference. Eat it and
+ any following whitespace. */
+
+ int quoted = 0;
+ for (p = in - 1; p > ref && *p == '\\'; --p)
+ quoted = !quoted;
+
+ if (quoted)
+ /* There were two or more backslashes, so this is
+ not really a continuation line. We don't collapse
+ the quoting backslashes here as is done in
+ collapse_continuations, because the line will
+ be collapsed again after expansion. */
+ *out++ = *in++;
+ else
+ {
+ /* Skip the backslash, newline, and whitespace. */
+ in += 2;
+ NEXT_TOKEN (in);
+
+ /* Discard any preceding whitespace that has
+ already been written to the output. */
+ while (out > outref && ISBLANK (out[-1]))
+ --out;
+
+ /* Replace it all with a single space. */
+ *out++ = ' ';
+ }
+ }
+ else
+ {
+ if (*in == openparen)
+ ++count;
+
+ *out++ = *in++;
+ }
+ }
+ }
+ }
+
+ /* There are no more references in this line to worry about.
+ Copy the remaining uninteresting text to the output. */
+ if (out != in)
+ memmove (out, in, strlen (in) + 1);
+
+ /* Finally, expand the line. */
+ cmds->fileinfo.offset = i;
+ lines[i] = allocated_variable_expand_for_file (cmds->command_lines[i],
+ file);
+ }
+
+ cmds->fileinfo.offset = 0;
+ c->command_lines = lines;
+
+ /* Fetch the first command line to be run. */
+ job_next_command (c);
+
+ /* Wait for a job slot to be freed up. If we allow an infinite number
+ don't bother; also job_slots will == 0 if we're using the jobserver. */
+
+ if (job_slots != 0)
+ while (job_slots_used == job_slots)
+ reap_children (1, 0);
+
+#ifdef MAKE_JOBSERVER
+ /* If we are controlling multiple jobs make sure we have a token before
+ starting the child. */
+
+ /* This can be inefficient. There's a decent chance that this job won't
+ actually have to run any subprocesses: the command script may be empty
+ or otherwise optimized away. It would be nice if we could defer
+ obtaining a token until just before we need it, in start_job_command.
+ To do that we'd need to keep track of whether we'd already obtained a
+ token (since start_job_command is called for each line of the job, not
+ just once). Also more thought needs to go into the entire algorithm;
+ this is where the old parallel job code waits, so... */
+
+ else if (jobserver_enabled ())
+ while (1)
+ {
+ int got_token;
+
+ DB (DB_JOBS, ("Need a job token; we %shave children\n",
+ children ? "" : "don't "));
+
+ /* If we don't already have a job started, use our "free" token. */
+ if (!jobserver_tokens)
+ break;
+
+ /* Prepare for jobserver token acquisition. */
+ jobserver_pre_acquire ();
+
+ /* Reap anything that's currently waiting. */
+ reap_children (0, 0);
+
+ /* Kick off any jobs we have waiting for an opportunity that
+ can run now (i.e., waiting for load). */
+ start_waiting_jobs ();
+
+ /* If our "free" slot is available, use it; we don't need a token. */
+ if (!jobserver_tokens)
+ break;
+
+ /* There must be at least one child already, or we have no business
+ waiting for a token. */
+ if (!children)
+ O (fatal, NILF, "INTERNAL: no children as we go to sleep on read\n");
+
+ /* Get a token. */
+ got_token = jobserver_acquire (waiting_jobs != NULL);
+
+ /* If we got one, we're done here. */
+ if (got_token == 1)
+ {
+ DB (DB_JOBS, (_("Obtained token for child %p (%s).\n"),
+ c, c->file->name));
+ break;
+ }
+ }
+#endif
+
+ ++jobserver_tokens;
+
+ /* Trace the build.
+ Use message here so that changes to working directories are logged. */
+ if (trace_flag)
+ {
+ char *newer = allocated_variable_expand_for_file ("$?", c->file);
+ const char *nm;
+
+ if (! cmds->fileinfo.filenm)
+ nm = _("<builtin>");
+ else
+ {
+ char *n = alloca (strlen (cmds->fileinfo.filenm) + 1 + 11 + 1);
+ sprintf (n, "%s:%lu", cmds->fileinfo.filenm, cmds->fileinfo.lineno);
+ nm = n;
+ }
+
+ if (newer[0] == '\0')
+ OSS (message, 0,
+ _("%s: target '%s' does not exist"), nm, c->file->name);
+ else
+ OSSS (message, 0,
+ _("%s: update target '%s' due to: %s"), nm, c->file->name, newer);
+
+ free (newer);
+ }
+
+ /* The job is now primed. Start it running.
+ (This will notice if there is in fact no recipe.) */
+ start_waiting_job (c);
+
+ if (job_slots == 1 || not_parallel)
+ /* Since there is only one job slot, make things run linearly.
+ Wait for the child to die, setting the state to 'cs_finished'. */
+ while (file->command_state == cs_running)
+ reap_children (1, 0);
+
+ OUTPUT_UNSET ();
+ return;
+}
+
+/* Move CHILD's pointers to the next command for it to execute.
+ Returns nonzero if there is another command. */
+
+static int
+job_next_command (struct child *child)
+{
+ while (child->command_ptr == 0 || *child->command_ptr == '\0')
+ {
+ /* There are no more lines in the expansion of this line. */
+ if (child->command_line == child->file->cmds->ncommand_lines)
+ {
+ /* There are no more lines to be expanded. */
+ child->command_ptr = 0;
+ child->file->cmds->fileinfo.offset = 0;
+ return 0;
+ }
+ else
+ /* Get the next line to run. */
+ child->command_ptr = child->command_lines[child->command_line++];
+ }
+
+ child->file->cmds->fileinfo.offset = child->command_line - 1;
+ return 1;
+}
+
+/* Determine if the load average on the system is too high to start a new job.
+ The real system load average is only recomputed once a second. However, a
+ very parallel make can easily start tens or even hundreds of jobs in a
+ second, which brings the system to its knees for a while until that first
+ batch of jobs clears out.
+
+ To avoid this we use a weighted algorithm to try to account for jobs which
+ have been started since the last second, and guess what the load average
+ would be now if it were computed.
+
+ This algorithm was provided by Thomas Riedl <thomas.riedl@siemens.com>,
+ who writes:
+
+! calculate something load-oid and add to the observed sys.load,
+! so that latter can catch up:
+! - every job started increases jobctr;
+! - every dying job decreases a positive jobctr;
+! - the jobctr value gets zeroed every change of seconds,
+! after its value*weight_b is stored into the 'backlog' value last_sec
+! - weight_a times the sum of jobctr and last_sec gets
+! added to the observed sys.load.
+!
+! The two weights have been tried out on 24 and 48 proc. Sun Solaris-9
+! machines, using a several-thousand-jobs-mix of cpp, cc, cxx and smallish
+! sub-shelled commands (rm, echo, sed...) for tests.
+! lowering the 'direct influence' factor weight_a (e.g. to 0.1)
+! resulted in significant excession of the load limit, raising it
+! (e.g. to 0.5) took bad to small, fast-executing jobs and didn't
+! reach the limit in most test cases.
+!
+! lowering the 'history influence' weight_b (e.g. to 0.1) resulted in
+! exceeding the limit for longer-running stuff (compile jobs in
+! the .5 to 1.5 sec. range),raising it (e.g. to 0.5) overrepresented
+! small jobs' effects.
+
+ */
+
+#define LOAD_WEIGHT_A 0.25
+#define LOAD_WEIGHT_B 0.25
+
+static int
+load_too_high (void)
+{
+#if defined(__MSDOS__) || defined(VMS) || defined(_AMIGA) || defined(__riscos__)
+ return 1;
+#else
+ static double last_sec;
+ static time_t last_now;
+ double load, guess;
+ time_t now;
+
+#ifdef WINDOWS32
+ /* sub_proc.c cannot wait for more than MAXIMUM_WAIT_OBJECTS children */
+ if (process_used_slots () >= MAXIMUM_WAIT_OBJECTS)
+ return 1;
+#endif
+
+ if (max_load_average < 0)
+ return 0;
+
+ /* Find the real system load average. */
+ make_access ();
+ if (getloadavg (&load, 1) != 1)
+ {
+ static int lossage = -1;
+ /* Complain only once for the same error. */
+ if (lossage == -1 || errno != lossage)
+ {
+ if (errno == 0)
+ /* An errno value of zero means getloadavg is just unsupported. */
+ O (error, NILF,
+ _("cannot enforce load limits on this operating system"));
+ else
+ perror_with_name (_("cannot enforce load limit: "), "getloadavg");
+ }
+ lossage = errno;
+ load = 0;
+ }
+ user_access ();
+
+ /* If we're in a new second zero the counter and correct the backlog
+ value. Only keep the backlog for one extra second; after that it's 0. */
+ now = time (NULL);
+ if (last_now < now)
+ {
+ if (last_now == now - 1)
+ last_sec = LOAD_WEIGHT_B * job_counter;
+ else
+ last_sec = 0.0;
+
+ job_counter = 0;
+ last_now = now;
+ }
+
+ /* Try to guess what the load would be right now. */
+ guess = load + (LOAD_WEIGHT_A * (job_counter + last_sec));
+
+ DB (DB_JOBS, ("Estimated system load = %f (actual = %f) (max requested = %f)\n",
+ guess, load, max_load_average));
+
+ return guess >= max_load_average;
+#endif
+}
+
+/* Start jobs that are waiting for the load to be lower. */
+
+void
+start_waiting_jobs (void)
+{
+ struct child *job;
+
+ if (waiting_jobs == 0)
+ return;
+
+ do
+ {
+ /* Check for recently deceased descendants. */
+ reap_children (0, 0);
+
+ /* Take a job off the waiting list. */
+ job = waiting_jobs;
+ waiting_jobs = job->next;
+
+ /* Try to start that job. We break out of the loop as soon
+ as start_waiting_job puts one back on the waiting list. */
+ }
+ while (start_waiting_job (job) && waiting_jobs != 0);
+
+ return;
+}
+
+#ifndef WINDOWS32
+
+/* EMX: Start a child process. This function returns the new pid. */
+# if defined __EMX__
+int
+child_execute_job (struct output *out, int good_stdin, char **argv, char **envp)
+{
+ int pid;
+ int fdin = good_stdin ? FD_STDIN : get_bad_stdin ();
+ int fdout = FD_STDOUT;
+ int fderr = FD_STDERR;
+ int save_fdin = -1;
+ int save_fdout = -1;
+ int save_fderr = -1;
+
+ /* Divert child output if we want to capture output. */
+ if (out && out->syncout)
+ {
+ if (out->out >= 0)
+ fdout = out->out;
+ if (out->err >= 0)
+ fderr = out->err;
+ }
+
+ /* For each FD which needs to be redirected first make a dup of the standard
+ FD to save and mark it close on exec so our child won't see it. Then
+ dup2() the standard FD to the redirect FD, and also mark the redirect FD
+ as close on exec. */
+ if (fdin != FD_STDIN)
+ {
+ save_fdin = dup (FD_STDIN);
+ if (save_fdin < 0)
+ O (fatal, NILF, _("no more file handles: could not duplicate stdin\n"));
+ CLOSE_ON_EXEC (save_fdin);
+
+ dup2 (fdin, FD_STDIN);
+ CLOSE_ON_EXEC (fdin);
+ }
+
+ if (fdout != FD_STDOUT)
+ {
+ save_fdout = dup (FD_STDOUT);
+ if (save_fdout < 0)
+ O (fatal, NILF,
+ _("no more file handles: could not duplicate stdout\n"));
+ CLOSE_ON_EXEC (save_fdout);
+
+ dup2 (fdout, FD_STDOUT);
+ CLOSE_ON_EXEC (fdout);
+ }
+
+ if (fderr != FD_STDERR)
+ {
+ if (fderr != fdout)
+ {
+ save_fderr = dup (FD_STDERR);
+ if (save_fderr < 0)
+ O (fatal, NILF,
+ _("no more file handles: could not duplicate stderr\n"));
+ CLOSE_ON_EXEC (save_fderr);
+ }
+
+ dup2 (fderr, FD_STDERR);
+ CLOSE_ON_EXEC (fderr);
+ }
+
+ /* Run the command. */
+ pid = exec_command (argv, envp);
+
+ /* Restore stdout/stdin/stderr of the parent and close temporary FDs. */
+ if (save_fdin >= 0)
+ {
+ if (dup2 (save_fdin, FD_STDIN) != FD_STDIN)
+ O (fatal, NILF, _("Could not restore stdin\n"));
+ else
+ close (save_fdin);
+ }
+
+ if (save_fdout >= 0)
+ {
+ if (dup2 (save_fdout, FD_STDOUT) != FD_STDOUT)
+ O (fatal, NILF, _("Could not restore stdout\n"));
+ else
+ close (save_fdout);
+ }
+
+ if (save_fderr >= 0)
+ {
+ if (dup2 (save_fderr, FD_STDERR) != FD_STDERR)
+ O (fatal, NILF, _("Could not restore stderr\n"));
+ else
+ close (save_fderr);
+ }
+
+ return pid;
+}
+
+#elif !defined (_AMIGA) && !defined (__MSDOS__) && !defined (VMS)
+
+/* POSIX:
+ Create a child process executing the command in ARGV.
+ ENVP is the environment of the new program. Returns the PID or -1. */
+int
+child_execute_job (struct output *out, int good_stdin, char **argv, char **envp)
+{
+ int r;
+ int pid;
+ int fdin = good_stdin ? FD_STDIN : get_bad_stdin ();
+ int fdout = FD_STDOUT;
+ int fderr = FD_STDERR;
+
+ /* Divert child output if we want to capture it. */
+ if (out && out->syncout)
+ {
+ if (out->out >= 0)
+ fdout = out->out;
+ if (out->err >= 0)
+ fderr = out->err;
+ }
+
+ pid = vfork();
+ if (pid != 0)
+ return pid;
+
+ /* We are the child. */
+ unblock_sigs ();
+
+#ifdef SET_STACK_SIZE
+ /* Reset limits, if necessary. */
+ if (stack_limit.rlim_cur)
+ setrlimit (RLIMIT_STACK, &stack_limit);
+#endif
+
+ /* For any redirected FD, dup2() it to the standard FD.
+ They are all marked close-on-exec already. */
+ if (fdin != FD_STDIN)
+ EINTRLOOP (r, dup2 (fdin, FD_STDIN));
+ if (fdout != FD_STDOUT)
+ EINTRLOOP (r, dup2 (fdout, FD_STDOUT));
+ if (fderr != FD_STDERR)
+ EINTRLOOP (r, dup2 (fderr, FD_STDERR));
+
+ /* Run the command. */
+ exec_command (argv, envp);
+}
+#endif /* !AMIGA && !__MSDOS__ && !VMS */
+#endif /* !WINDOWS32 */
+
+#ifndef _AMIGA
+/* Replace the current process with one running the command in ARGV,
+ with environment ENVP. This function does not return. */
+
+/* EMX: This function returns the pid of the child process. */
+# ifdef __EMX__
+int
+# else
+void
+# endif
+exec_command (char **argv, char **envp)
+{
+#ifdef VMS
+ /* to work around a problem with signals and execve: ignore them */
+#ifdef SIGCHLD
+ signal (SIGCHLD,SIG_IGN);
+#endif
+ /* Run the program. */
+ execve (argv[0], argv, envp);
+ perror_with_name ("execve: ", argv[0]);
+ _exit (EXIT_FAILURE);
+#else
+#ifdef WINDOWS32
+ HANDLE hPID;
+ HANDLE hWaitPID;
+ int exit_code = EXIT_FAILURE;
+
+ /* make sure CreateProcess() has Path it needs */
+ sync_Path_environment ();
+
+ /* launch command */
+ hPID = process_easy (argv, envp, -1, -1);
+
+ /* make sure launch ok */
+ if (hPID == INVALID_HANDLE_VALUE)
+ {
+ int i;
+ fprintf (stderr, _("process_easy() failed to launch process (e=%ld)\n"),
+ process_last_err (hPID));
+ for (i = 0; argv[i]; i++)
+ fprintf (stderr, "%s ", argv[i]);
+ fprintf (stderr, _("\nCounted %d args in failed launch\n"), i);
+ exit (EXIT_FAILURE);
+ }
+
+ /* wait and reap last child */
+ hWaitPID = process_wait_for_any (1, 0);
+ while (hWaitPID)
+ {
+ /* was an error found on this process? */
+ int err = process_last_err (hWaitPID);
+
+ /* get exit data */
+ exit_code = process_exit_code (hWaitPID);
+
+ if (err)
+ fprintf (stderr, "make (e=%d, rc=%d): %s",
+ err, exit_code, map_windows32_error_to_string (err));
+
+ /* cleanup process */
+ process_cleanup (hWaitPID);
+
+ /* expect to find only last pid, warn about other pids reaped */
+ if (hWaitPID == hPID)
+ break;
+ else
+ {
+ char *pidstr = xstrdup (pid2str ((pid_t)hWaitPID));
+
+ fprintf (stderr,
+ _("make reaped child pid %s, still waiting for pid %s\n"),
+ pidstr, pid2str ((pid_t)hPID));
+ free (pidstr);
+ }
+ }
+
+ /* return child's exit code as our exit code */
+ exit (exit_code);
+
+#else /* !WINDOWS32 */
+
+# ifdef __EMX__
+ int pid;
+# endif
+
+ /* Be the user, permanently. */
+ child_access ();
+
+# ifdef __EMX__
+ /* Run the program. */
+ pid = spawnvpe (P_NOWAIT, argv[0], argv, envp);
+ if (pid >= 0)
+ return pid;
+
+ /* the file might have a strange shell extension */
+ if (errno == ENOENT)
+ errno = ENOEXEC;
+
+# else
+ /* Run the program. */
+ environ = envp;
+ execvp (argv[0], argv);
+
+# endif /* !__EMX__ */
+
+ switch (errno)
+ {
+ case ENOENT:
+ /* We are in the child: don't use the output buffer.
+ It's not right to run fprintf() here! */
+ if (makelevel == 0)
+ fprintf (stderr, _("%s: %s: Command not found\n"), program, argv[0]);
+ else
+ fprintf (stderr, _("%s[%u]: %s: Command not found\n"),
+ program, makelevel, argv[0]);
+ break;
+ case ENOEXEC:
+ {
+ /* The file is not executable. Try it as a shell script. */
+ const char *shell;
+ char **new_argv;
+ int argc;
+ int i=1;
+
+# ifdef __EMX__
+ /* Do not use $SHELL from the environment */
+ struct variable *p = lookup_variable ("SHELL", 5);
+ if (p)
+ shell = p->value;
+ else
+ shell = 0;
+# else
+ shell = getenv ("SHELL");
+# endif
+ if (shell == 0)
+ shell = default_shell;
+
+ argc = 1;
+ while (argv[argc] != 0)
+ ++argc;
+
+# ifdef __EMX__
+ if (!unixy_shell)
+ ++argc;
+# endif
+
+ new_argv = alloca ((1 + argc + 1) * sizeof (char *));
+ new_argv[0] = (char *)shell;
+
+# ifdef __EMX__
+ if (!unixy_shell)
+ {
+ new_argv[1] = "/c";
+ ++i;
+ --argc;
+ }
+# endif
+
+ new_argv[i] = argv[0];
+ while (argc > 0)
+ {
+ new_argv[i + argc] = argv[argc];
+ --argc;
+ }
+
+# ifdef __EMX__
+ pid = spawnvpe (P_NOWAIT, shell, new_argv, envp);
+ if (pid >= 0)
+ break;
+# else
+ execvp (shell, new_argv);
+# endif
+ if (errno == ENOENT)
+ OS (error, NILF, _("%s: Shell program not found"), shell);
+ else
+ perror_with_name ("execvp: ", shell);
+ break;
+ }
+
+# ifdef __EMX__
+ case EINVAL:
+ /* this nasty error was driving me nuts :-( */
+ O (error, NILF, _("spawnvpe: environment space might be exhausted"));
+ /* FALLTHROUGH */
+# endif
+
+ default:
+ perror_with_name ("execvp: ", argv[0]);
+ break;
+ }
+
+# ifdef __EMX__
+ return pid;
+# else
+ _exit (127);
+# endif
+#endif /* !WINDOWS32 */
+#endif /* !VMS */
+}
+#else /* On Amiga */
+void
+exec_command (char **argv)
+{
+ MyExecute (argv);
+}
+
+void clean_tmp (void)
+{
+ DeleteFile (amiga_bname);
+}
+
+#endif /* On Amiga */
+
+#ifndef VMS
+/* Figure out the argument list necessary to run LINE as a command. Try to
+ avoid using a shell. This routine handles only ' quoting, and " quoting
+ when no backslash, $ or ' characters are seen in the quotes. Starting
+ quotes may be escaped with a backslash. If any of the characters in
+ sh_chars is seen, or any of the builtin commands listed in sh_cmds
+ is the first word of a line, the shell is used.
+
+ If RESTP is not NULL, *RESTP is set to point to the first newline in LINE.
+ If *RESTP is NULL, newlines will be ignored.
+
+ SHELL is the shell to use, or nil to use the default shell.
+ IFS is the value of $IFS, or nil (meaning the default).
+
+ FLAGS is the value of lines_flags for this command line. It is
+ used in the WINDOWS32 port to check whether + or $(MAKE) were found
+ in this command line, in which case the effect of just_print_flag
+ is overridden. */
+
+static char **
+construct_command_argv_internal (char *line, char **restp, const char *shell,
+ const char *shellflags, const char *ifs,
+ int flags, char **batch_filename UNUSED)
+{
+#ifdef __MSDOS__
+ /* MSDOS supports both the stock DOS shell and ports of Unixy shells.
+ We call 'system' for anything that requires ''slow'' processing,
+ because DOS shells are too dumb. When $SHELL points to a real
+ (unix-style) shell, 'system' just calls it to do everything. When
+ $SHELL points to a DOS shell, 'system' does most of the work
+ internally, calling the shell only for its internal commands.
+ However, it looks on the $PATH first, so you can e.g. have an
+ external command named 'mkdir'.
+
+ Since we call 'system', certain characters and commands below are
+ actually not specific to COMMAND.COM, but to the DJGPP implementation
+ of 'system'. In particular:
+
+ The shell wildcard characters are in DOS_CHARS because they will
+ not be expanded if we call the child via 'spawnXX'.
+
+ The ';' is in DOS_CHARS, because our 'system' knows how to run
+ multiple commands on a single line.
+
+ DOS_CHARS also include characters special to 4DOS/NDOS, so we
+ won't have to tell one from another and have one more set of
+ commands and special characters. */
+ static const char *sh_chars_dos = "*?[];|<>%^&()";
+ static const char *sh_cmds_dos[] =
+ { "break", "call", "cd", "chcp", "chdir", "cls", "copy", "ctty", "date",
+ "del", "dir", "echo", "erase", "exit", "for", "goto", "if", "md",
+ "mkdir", "path", "pause", "prompt", "rd", "rmdir", "rem", "ren",
+ "rename", "set", "shift", "time", "type", "ver", "verify", "vol", ":",
+ 0 };
+
+ static const char *sh_chars_sh = "#;\"*?[]&|<>(){}$`^";
+ static const char *sh_cmds_sh[] =
+ { "cd", "echo", "eval", "exec", "exit", "login", "logout", "set", "umask",
+ "wait", "while", "for", "case", "if", ":", ".", "break", "continue",
+ "export", "read", "readonly", "shift", "times", "trap", "switch",
+ "unset", "ulimit", 0 };
+
+ const char *sh_chars;
+ const char **sh_cmds;
+
+#elif defined (__EMX__)
+ static const char *sh_chars_dos = "*?[];|<>%^&()";
+ static const char *sh_cmds_dos[] =
+ { "break", "call", "cd", "chcp", "chdir", "cls", "copy", "ctty", "date",
+ "del", "dir", "echo", "erase", "exit", "for", "goto", "if", "md",
+ "mkdir", "path", "pause", "prompt", "rd", "rmdir", "rem", "ren",
+ "rename", "set", "shift", "time", "type", "ver", "verify", "vol", ":",
+ 0 };
+
+ static const char *sh_chars_os2 = "*?[];|<>%^()\"'&";
+ static const char *sh_cmds_os2[] =
+ { "call", "cd", "chcp", "chdir", "cls", "copy", "date", "del", "detach",
+ "dir", "echo", "endlocal", "erase", "exit", "for", "goto", "if", "keys",
+ "md", "mkdir", "move", "path", "pause", "prompt", "rd", "rem", "ren",
+ "rename", "rmdir", "set", "setlocal", "shift", "start", "time", "type",
+ "ver", "verify", "vol", ":", 0 };
+
+ static const char *sh_chars_sh = "#;\"*?[]&|<>(){}$`^~'";
+ static const char *sh_cmds_sh[] =
+ { "echo", "cd", "eval", "exec", "exit", "login", "logout", "set", "umask",
+ "wait", "while", "for", "case", "if", ":", ".", "break", "continue",
+ "export", "read", "readonly", "shift", "times", "trap", "switch",
+ "unset", 0 };
+
+ const char *sh_chars;
+ const char **sh_cmds;
+
+#elif defined (_AMIGA)
+ static const char *sh_chars = "#;\"|<>()?*$`";
+ static const char *sh_cmds[] =
+ { "cd", "eval", "if", "delete", "echo", "copy", "rename", "set", "setenv",
+ "date", "makedir", "skip", "else", "endif", "path", "prompt", "unset",
+ "unsetenv", "version", 0 };
+
+#elif defined (WINDOWS32)
+ /* We used to have a double quote (") in sh_chars_dos[] below, but
+ that caused any command line with quoted file names be run
+ through a temporary batch file, which introduces command-line
+ limit of 4K charcaters imposed by cmd.exe. Since CreateProcess
+ can handle quoted file names just fine, removing the quote lifts
+ the limit from a very frequent use case, because using quoted
+ file names is commonplace on MS-Windows. */
+ static const char *sh_chars_dos = "|&<>";
+ static const char *sh_cmds_dos[] =
+ { "assoc", "break", "call", "cd", "chcp", "chdir", "cls", "color", "copy",
+ "ctty", "date", "del", "dir", "echo", "echo.", "endlocal", "erase",
+ "exit", "for", "ftype", "goto", "if", "if", "md", "mkdir", "move",
+ "path", "pause", "prompt", "rd", "rem", "ren", "rename", "rmdir",
+ "set", "setlocal", "shift", "time", "title", "type", "ver", "verify",
+ "vol", ":", 0 };
+
+ static const char *sh_chars_sh = "#;\"*?[]&|<>(){}$`^";
+ static const char *sh_cmds_sh[] =
+ { "cd", "eval", "exec", "exit", "login", "logout", "set", "umask", "wait",
+ "while", "for", "case", "if", ":", ".", "break", "continue", "export",
+ "read", "readonly", "shift", "times", "trap", "switch", "test",
+#ifdef BATCH_MODE_ONLY_SHELL
+ "echo",
+#endif
+ 0 };
+
+ const char *sh_chars;
+ const char **sh_cmds;
+#elif defined(__riscos__)
+ static const char *sh_chars = "";
+ static const char *sh_cmds[] = { 0 };
+#else /* must be UNIX-ish */
+ static const char *sh_chars = "#;\"*?[]&|<>(){}$`^~!";
+ static const char *sh_cmds[] =
+ { ".", ":", "break", "case", "cd", "continue", "eval", "exec", "exit",
+ "export", "for", "if", "login", "logout", "read", "readonly", "set",
+ "shift", "switch", "test", "times", "trap", "ulimit", "umask", "unset",
+ "wait", "while", 0 };
+
+# ifdef HAVE_DOS_PATHS
+ /* This is required if the MSYS/Cygwin ports (which do not define
+ WINDOWS32) are compiled with HAVE_DOS_PATHS defined, which uses
+ sh_chars_sh directly (see below). The value must be identical
+ to that of sh_chars immediately above. */
+ static const char *sh_chars_sh = "#;\"*?[]&|<>(){}$`^~!";
+# endif /* HAVE_DOS_PATHS */
+#endif
+ int i;
+ char *p;
+#ifndef NDEBUG
+ char *end;
+#endif
+ char *ap;
+ const char *cap;
+ const char *cp;
+ int instring, word_has_equals, seen_nonequals, last_argument_was_empty;
+ char **new_argv = 0;
+ char *argstr = 0;
+#ifdef WINDOWS32
+ int slow_flag = 0;
+
+ if (!unixy_shell)
+ {
+ sh_cmds = sh_cmds_dos;
+ sh_chars = sh_chars_dos;
+ }
+ else
+ {
+ sh_cmds = sh_cmds_sh;
+ sh_chars = sh_chars_sh;
+ }
+#endif /* WINDOWS32 */
+
+ if (restp != NULL)
+ *restp = NULL;
+
+ /* Make sure not to bother processing an empty line but stop at newline. */
+ while (ISBLANK (*line))
+ ++line;
+ if (*line == '\0')
+ return 0;
+
+ if (shellflags == 0)
+ shellflags = posix_pedantic ? "-ec" : "-c";
+
+ /* See if it is safe to parse commands internally. */
+ if (shell == 0)
+ shell = default_shell;
+#ifdef WINDOWS32
+ else if (strcmp (shell, default_shell))
+ {
+ char *s1 = _fullpath (NULL, shell, 0);
+ char *s2 = _fullpath (NULL, default_shell, 0);
+
+ slow_flag = strcmp ((s1 ? s1 : ""), (s2 ? s2 : ""));
+
+ free (s1);
+ free (s2);
+ }
+ if (slow_flag)
+ goto slow;
+#else /* not WINDOWS32 */
+#if defined (__MSDOS__) || defined (__EMX__)
+ else if (strcasecmp (shell, default_shell))
+ {
+ extern int _is_unixy_shell (const char *_path);
+
+ DB (DB_BASIC, (_("$SHELL changed (was '%s', now '%s')\n"),
+ default_shell, shell));
+ unixy_shell = _is_unixy_shell (shell);
+ /* we must allocate a copy of shell: construct_command_argv() will free
+ * shell after this function returns. */
+ default_shell = xstrdup (shell);
+ }
+ if (unixy_shell)
+ {
+ sh_chars = sh_chars_sh;
+ sh_cmds = sh_cmds_sh;
+ }
+ else
+ {
+ sh_chars = sh_chars_dos;
+ sh_cmds = sh_cmds_dos;
+# ifdef __EMX__
+ if (_osmode == OS2_MODE)
+ {
+ sh_chars = sh_chars_os2;
+ sh_cmds = sh_cmds_os2;
+ }
+# endif
+ }
+#else /* !__MSDOS__ */
+ else if (strcmp (shell, default_shell))
+ goto slow;
+#endif /* !__MSDOS__ && !__EMX__ */
+#endif /* not WINDOWS32 */
+
+ if (ifs)
+ for (cap = ifs; *cap != '\0'; ++cap)
+ if (*cap != ' ' && *cap != '\t' && *cap != '\n')
+ goto slow;
+
+ if (shellflags)
+ if (shellflags[0] != '-'
+ || ((shellflags[1] != 'c' || shellflags[2] != '\0')
+ && (shellflags[1] != 'e' || shellflags[2] != 'c' || shellflags[3] != '\0')))
+ goto slow;
+
+ i = strlen (line) + 1;
+
+ /* More than 1 arg per character is impossible. */
+ new_argv = xmalloc (i * sizeof (char *));
+
+ /* All the args can fit in a buffer as big as LINE is. */
+ ap = new_argv[0] = argstr = xmalloc (i);
+#ifndef NDEBUG
+ end = ap + i;
+#endif
+
+ /* I is how many complete arguments have been found. */
+ i = 0;
+ instring = word_has_equals = seen_nonequals = last_argument_was_empty = 0;
+ for (p = line; *p != '\0'; ++p)
+ {
+ assert (ap <= end);
+
+ if (instring)
+ {
+ /* Inside a string, just copy any char except a closing quote
+ or a backslash-newline combination. */
+ if (*p == instring)
+ {
+ instring = 0;
+ if (ap == new_argv[0] || *(ap-1) == '\0')
+ last_argument_was_empty = 1;
+ }
+ else if (*p == '\\' && p[1] == '\n')
+ {
+ /* Backslash-newline is handled differently depending on what
+ kind of string we're in: inside single-quoted strings you
+ keep them; in double-quoted strings they disappear. For
+ DOS/Windows/OS2, if we don't have a POSIX shell, we keep the
+ pre-POSIX behavior of removing the backslash-newline. */
+ if (instring == '"'
+#if defined (__MSDOS__) || defined (__EMX__) || defined (WINDOWS32)
+ || !unixy_shell
+#endif
+ )
+ ++p;
+ else
+ {
+ *(ap++) = *(p++);
+ *(ap++) = *p;
+ }
+ }
+ else if (*p == '\n' && restp != NULL)
+ {
+ /* End of the command line. */
+ *restp = p;
+ goto end_of_line;
+ }
+ /* Backslash, $, and ` are special inside double quotes.
+ If we see any of those, punt.
+ But on MSDOS, if we use COMMAND.COM, double and single
+ quotes have the same effect. */
+ else if (instring == '"' && strchr ("\\$`", *p) != 0 && unixy_shell)
+ goto slow;
+#ifdef WINDOWS32
+ /* Quoted wildcard characters must be passed quoted to the
+ command, so give up the fast route. */
+ else if (instring == '"' && strchr ("*?", *p) != 0 && !unixy_shell)
+ goto slow;
+ else if (instring == '"' && strncmp (p, "\\\"", 2) == 0)
+ *ap++ = *++p;
+#endif
+ else
+ *ap++ = *p;
+ }
+ else if (strchr (sh_chars, *p) != 0)
+ /* Not inside a string, but it's a special char. */
+ goto slow;
+ else if (one_shell && *p == '\n')
+ /* In .ONESHELL mode \n is a separator like ; or && */
+ goto slow;
+#ifdef __MSDOS__
+ else if (*p == '.' && p[1] == '.' && p[2] == '.' && p[3] != '.')
+ /* '...' is a wildcard in DJGPP. */
+ goto slow;
+#endif
+ else
+ /* Not a special char. */
+ switch (*p)
+ {
+ case '=':
+ /* Equals is a special character in leading words before the
+ first word with no equals sign in it. This is not the case
+ with sh -k, but we never get here when using nonstandard
+ shell flags. */
+ if (! seen_nonequals && unixy_shell)
+ goto slow;
+ word_has_equals = 1;
+ *ap++ = '=';
+ break;
+
+ case '\\':
+ /* Backslash-newline has special case handling, ref POSIX.
+ We're in the fastpath, so emulate what the shell would do. */
+ if (p[1] == '\n')
+ {
+ /* Throw out the backslash and newline. */
+ ++p;
+
+ /* At the beginning of the argument, skip any whitespace other
+ than newline before the start of the next word. */
+ if (ap == new_argv[i])
+ while (ISBLANK (p[1]))
+ ++p;
+ }
+#ifdef WINDOWS32
+ /* Backslash before whitespace is not special if our shell
+ is not Unixy. */
+ else if (ISSPACE (p[1]) && !unixy_shell)
+ {
+ *ap++ = *p;
+ break;
+ }
+#endif
+ else if (p[1] != '\0')
+ {
+#ifdef HAVE_DOS_PATHS
+ /* Only remove backslashes before characters special to Unixy
+ shells. All other backslashes are copied verbatim, since
+ they are probably DOS-style directory separators. This
+ still leaves a small window for problems, but at least it
+ should work for the vast majority of naive users. */
+
+#ifdef __MSDOS__
+ /* A dot is only special as part of the "..."
+ wildcard. */
+ if (strneq (p + 1, ".\\.\\.", 5))
+ {
+ *ap++ = '.';
+ *ap++ = '.';
+ p += 4;
+ }
+ else
+#endif
+ if (p[1] != '\\' && p[1] != '\''
+ && !ISSPACE (p[1])
+ && strchr (sh_chars_sh, p[1]) == 0)
+ /* back up one notch, to copy the backslash */
+ --p;
+#endif /* HAVE_DOS_PATHS */
+
+ /* Copy and skip the following char. */
+ *ap++ = *++p;
+ }
+ break;
+
+ case '\'':
+ case '"':
+ instring = *p;
+ break;
+
+ case '\n':
+ if (restp != NULL)
+ {
+ /* End of the command line. */
+ *restp = p;
+ goto end_of_line;
+ }
+ else
+ /* Newlines are not special. */
+ *ap++ = '\n';
+ break;
+
+ case ' ':
+ case '\t':
+ /* We have the end of an argument.
+ Terminate the text of the argument. */
+ *ap++ = '\0';
+ new_argv[++i] = ap;
+ last_argument_was_empty = 0;
+
+ /* Update SEEN_NONEQUALS, which tells us if every word
+ heretofore has contained an '='. */
+ seen_nonequals |= ! word_has_equals;
+ if (word_has_equals && ! seen_nonequals)
+ /* An '=' in a word before the first
+ word without one is magical. */
+ goto slow;
+ word_has_equals = 0; /* Prepare for the next word. */
+
+ /* If this argument is the command name,
+ see if it is a built-in shell command.
+ If so, have the shell handle it. */
+ if (i == 1)
+ {
+ register int j;
+ for (j = 0; sh_cmds[j] != 0; ++j)
+ {
+ if (streq (sh_cmds[j], new_argv[0]))
+ goto slow;
+#if defined(__EMX__) || defined(WINDOWS32)
+ /* Non-Unix shells are case insensitive. */
+ if (!unixy_shell
+ && strcasecmp (sh_cmds[j], new_argv[0]) == 0)
+ goto slow;
+#endif
+ }
+ }
+
+ /* Skip whitespace chars, but not newlines. */
+ while (ISBLANK (p[1]))
+ ++p;
+ break;
+
+ default:
+ *ap++ = *p;
+ break;
+ }
+ }
+ end_of_line:
+
+ if (instring)
+ /* Let the shell deal with an unterminated quote. */
+ goto slow;
+
+ /* Terminate the last argument and the argument list. */
+
+ *ap = '\0';
+ if (new_argv[i][0] != '\0' || last_argument_was_empty)
+ ++i;
+ new_argv[i] = 0;
+
+ if (i == 1)
+ {
+ register int j;
+ for (j = 0; sh_cmds[j] != 0; ++j)
+ if (streq (sh_cmds[j], new_argv[0]))
+ goto slow;
+ }
+
+ if (new_argv[0] == 0)
+ {
+ /* Line was empty. */
+ free (argstr);
+ free (new_argv);
+ return 0;
+ }
+
+ return new_argv;
+
+ slow:;
+ /* We must use the shell. */
+
+ if (new_argv != 0)
+ {
+ /* Free the old argument list we were working on. */
+ free (argstr);
+ free (new_argv);
+ }
+
+#ifdef __MSDOS__
+ execute_by_shell = 1; /* actually, call 'system' if shell isn't unixy */
+#endif
+
+#ifdef _AMIGA
+ {
+ char *ptr;
+ char *buffer;
+ char *dptr;
+
+ buffer = xmalloc (strlen (line)+1);
+
+ ptr = line;
+ for (dptr=buffer; *ptr; )
+ {
+ if (*ptr == '\\' && ptr[1] == '\n')
+ ptr += 2;
+ else if (*ptr == '@') /* Kludge: multiline commands */
+ {
+ ptr += 2;
+ *dptr++ = '\n';
+ }
+ else
+ *dptr++ = *ptr++;
+ }
+ *dptr = 0;
+
+ new_argv = xmalloc (2 * sizeof (char *));
+ new_argv[0] = buffer;
+ new_argv[1] = 0;
+ }
+#else /* Not Amiga */
+#ifdef WINDOWS32
+ /*
+ * Not eating this whitespace caused things like
+ *
+ * sh -c "\n"
+ *
+ * which gave the shell fits. I think we have to eat
+ * whitespace here, but this code should be considered
+ * suspicious if things start failing....
+ */
+
+ /* Make sure not to bother processing an empty line. */
+ NEXT_TOKEN (line);
+ if (*line == '\0')
+ return 0;
+#endif /* WINDOWS32 */
+
+ {
+ /* SHELL may be a multi-word command. Construct a command line
+ "$(SHELL) $(.SHELLFLAGS) LINE", with all special chars in LINE escaped.
+ Then recurse, expanding this command line to get the final
+ argument list. */
+
+ char *new_line;
+ unsigned int shell_len = strlen (shell);
+ unsigned int line_len = strlen (line);
+ unsigned int sflags_len = shellflags ? strlen (shellflags) : 0;
+#ifdef WINDOWS32
+ char *command_ptr = NULL; /* used for batch_mode_shell mode */
+#endif
+
+# ifdef __EMX__ /* is this necessary? */
+ if (!unixy_shell && shellflags)
+ shellflags[0] = '/'; /* "/c" */
+# endif
+
+ /* In .ONESHELL mode we are allowed to throw the entire current
+ recipe string at a single shell and trust that the user
+ has configured the shell and shell flags, and formatted
+ the string, appropriately. */
+ if (one_shell)
+ {
+ /* If the shell is Bourne compatible, we must remove and ignore
+ interior special chars [@+-] because they're meaningless to
+ the shell itself. If, however, we're in .ONESHELL mode and
+ have changed SHELL to something non-standard, we should
+ leave those alone because they could be part of the
+ script. In this case we must also leave in place
+ any leading [@+-] for the same reason. */
+
+ /* Remove and ignore interior prefix chars [@+-] because they're
+ meaningless given a single shell. */
+#if defined __MSDOS__ || defined (__EMX__)
+ if (unixy_shell) /* the test is complicated and we already did it */
+#else
+ if (is_bourne_compatible_shell (shell)
+#ifdef WINDOWS32
+ /* If we didn't find any sh.exe, don't behave is if we did! */
+ && !no_default_sh_exe
+#endif
+ )
+#endif
+ {
+ const char *f = line;
+ char *t = line;
+
+ /* Copy the recipe, removing and ignoring interior prefix chars
+ [@+-]: they're meaningless in .ONESHELL mode. */
+ while (f[0] != '\0')
+ {
+ int esc = 0;
+
+ /* This is the start of a new recipe line. Skip whitespace
+ and prefix characters but not newlines. */
+ while (ISBLANK (*f) || *f == '-' || *f == '@' || *f == '+')
+ ++f;
+
+ /* Copy until we get to the next logical recipe line. */
+ while (*f != '\0')
+ {
+ *(t++) = *(f++);
+ if (f[-1] == '\\')
+ esc = !esc;
+ else
+ {
+ /* On unescaped newline, we're done with this line. */
+ if (f[-1] == '\n' && ! esc)
+ break;
+
+ /* Something else: reset the escape sequence. */
+ esc = 0;
+ }
+ }
+ }
+ *t = '\0';
+ }
+#ifdef WINDOWS32
+ else /* non-Posix shell (cmd.exe etc.) */
+ {
+ const char *f = line;
+ char *t = line;
+ char *tstart = t;
+ int temp_fd;
+ FILE* batch = NULL;
+ int id = GetCurrentProcessId ();
+ PATH_VAR(fbuf);
+
+ /* Generate a file name for the temporary batch file. */
+ sprintf (fbuf, "make%d", id);
+ *batch_filename = create_batch_file (fbuf, 0, &temp_fd);
+ DB (DB_JOBS, (_("Creating temporary batch file %s\n"),
+ *batch_filename));
+
+ /* Create a FILE object for the batch file, and write to it the
+ commands to be executed. Put the batch file in TEXT mode. */
+ _setmode (temp_fd, _O_TEXT);
+ batch = _fdopen (temp_fd, "wt");
+ fputs ("@echo off\n", batch);
+ DB (DB_JOBS, (_("Batch file contents:\n\t@echo off\n")));
+
+ /* Copy the recipe, removing and ignoring interior prefix chars
+ [@+-]: they're meaningless in .ONESHELL mode. */
+ while (*f != '\0')
+ {
+ /* This is the start of a new recipe line. Skip whitespace
+ and prefix characters but not newlines. */
+ while (ISBLANK (*f) || *f == '-' || *f == '@' || *f == '+')
+ ++f;
+
+ /* Copy until we get to the next logical recipe line. */
+ while (*f != '\0')
+ {
+ /* Remove the escaped newlines in the command, and the
+ blanks that follow them. Windows shells cannot handle
+ escaped newlines. */
+ if (*f == '\\' && f[1] == '\n')
+ {
+ f += 2;
+ while (ISBLANK (*f))
+ ++f;
+ }
+ *(t++) = *(f++);
+ /* On an unescaped newline, we're done with this
+ line. */
+ if (f[-1] == '\n')
+ break;
+ }
+ /* Write another line into the batch file. */
+ if (t > tstart)
+ {
+ char c = *t;
+ *t = '\0';
+ fputs (tstart, batch);
+ DB (DB_JOBS, ("\t%s", tstart));
+ tstart = t;
+ *t = c;
+ }
+ }
+ DB (DB_JOBS, ("\n"));
+ fclose (batch);
+
+ /* Create an argv list for the shell command line that
+ will run the batch file. */
+ new_argv = xmalloc (2 * sizeof (char *));
+ new_argv[0] = xstrdup (*batch_filename);
+ new_argv[1] = NULL;
+ return new_argv;
+ }
+#endif /* WINDOWS32 */
+ /* Create an argv list for the shell command line. */
+ {
+ int n = 0;
+
+ new_argv = xmalloc ((4 + sflags_len/2) * sizeof (char *));
+ new_argv[n++] = xstrdup (shell);
+
+ /* Chop up the shellflags (if any) and assign them. */
+ if (! shellflags)
+ new_argv[n++] = xstrdup ("");
+ else
+ {
+ const char *s = shellflags;
+ char *t;
+ unsigned int len;
+ while ((t = find_next_token (&s, &len)) != 0)
+ new_argv[n++] = xstrndup (t, len);
+ }
+
+ /* Set the command to invoke. */
+ new_argv[n++] = line;
+ new_argv[n++] = NULL;
+ }
+ return new_argv;
+ }
+
+ new_line = xmalloc ((shell_len*2) + 1 + sflags_len + 1
+ + (line_len*2) + 1);
+ ap = new_line;
+ /* Copy SHELL, escaping any characters special to the shell. If
+ we don't escape them, construct_command_argv_internal will
+ recursively call itself ad nauseam, or until stack overflow,
+ whichever happens first. */
+ for (cp = shell; *cp != '\0'; ++cp)
+ {
+ if (strchr (sh_chars, *cp) != 0)
+ *(ap++) = '\\';
+ *(ap++) = *cp;
+ }
+ *(ap++) = ' ';
+ if (shellflags)
+ memcpy (ap, shellflags, sflags_len);
+ ap += sflags_len;
+ *(ap++) = ' ';
+#ifdef WINDOWS32
+ command_ptr = ap;
+#endif
+ for (p = line; *p != '\0'; ++p)
+ {
+ if (restp != NULL && *p == '\n')
+ {
+ *restp = p;
+ break;
+ }
+ else if (*p == '\\' && p[1] == '\n')
+ {
+ /* POSIX says we keep the backslash-newline. If we don't have a
+ POSIX shell on DOS/Windows/OS2, mimic the pre-POSIX behavior
+ and remove the backslash/newline. */
+#if defined (__MSDOS__) || defined (__EMX__) || defined (WINDOWS32)
+# define PRESERVE_BSNL unixy_shell
+#else
+# define PRESERVE_BSNL 1
+#endif
+ if (PRESERVE_BSNL)
+ {
+ *(ap++) = '\\';
+ /* Only non-batch execution needs another backslash,
+ because it will be passed through a recursive
+ invocation of this function. */
+ if (!batch_mode_shell)
+ *(ap++) = '\\';
+ *(ap++) = '\n';
+ }
+ ++p;
+ continue;
+ }
+
+ /* DOS shells don't know about backslash-escaping. */
+ if (unixy_shell && !batch_mode_shell &&
+ (*p == '\\' || *p == '\'' || *p == '"'
+ || ISSPACE (*p)
+ || strchr (sh_chars, *p) != 0))
+ *ap++ = '\\';
+#ifdef __MSDOS__
+ else if (unixy_shell && strneq (p, "...", 3))
+ {
+ /* The case of '...' wildcard again. */
+ strcpy (ap, "\\.\\.\\");
+ ap += 5;
+ p += 2;
+ }
+#endif
+ *ap++ = *p;
+ }
+ if (ap == new_line + shell_len + sflags_len + 2)
+ {
+ /* Line was empty. */
+ free (new_line);
+ return 0;
+ }
+ *ap = '\0';
+
+#ifdef WINDOWS32
+ /* Some shells do not work well when invoked as 'sh -c xxx' to run a
+ command line (e.g. Cygnus GNUWIN32 sh.exe on WIN32 systems). In these
+ cases, run commands via a script file. */
+ if (just_print_flag && !(flags & COMMANDS_RECURSE))
+ {
+ /* Need to allocate new_argv, although it's unused, because
+ start_job_command will want to free it and its 0'th element. */
+ new_argv = xmalloc (2 * sizeof (char *));
+ new_argv[0] = xstrdup ("");
+ new_argv[1] = NULL;
+ }
+ else if ((no_default_sh_exe || batch_mode_shell) && batch_filename)
+ {
+ int temp_fd;
+ FILE* batch = NULL;
+ int id = GetCurrentProcessId ();
+ PATH_VAR (fbuf);
+
+ /* create a file name */
+ sprintf (fbuf, "make%d", id);
+ *batch_filename = create_batch_file (fbuf, unixy_shell, &temp_fd);
+
+ DB (DB_JOBS, (_("Creating temporary batch file %s\n"),
+ *batch_filename));
+
+ /* Create a FILE object for the batch file, and write to it the
+ commands to be executed. Put the batch file in TEXT mode. */
+ _setmode (temp_fd, _O_TEXT);
+ batch = _fdopen (temp_fd, "wt");
+ if (!unixy_shell)
+ fputs ("@echo off\n", batch);
+ fputs (command_ptr, batch);
+ fputc ('\n', batch);
+ fclose (batch);
+ DB (DB_JOBS, (_("Batch file contents:%s\n\t%s\n"),
+ !unixy_shell ? "\n\t@echo off" : "", command_ptr));
+
+ /* create argv */
+ new_argv = xmalloc (3 * sizeof (char *));
+ if (unixy_shell)
+ {
+ new_argv[0] = xstrdup (shell);
+ new_argv[1] = *batch_filename; /* only argv[0] gets freed later */
+ }
+ else
+ {
+ new_argv[0] = xstrdup (*batch_filename);
+ new_argv[1] = NULL;
+ }
+ new_argv[2] = NULL;
+ }
+ else
+#endif /* WINDOWS32 */
+
+ if (unixy_shell)
+ new_argv = construct_command_argv_internal (new_line, 0, 0, 0, 0,
+ flags, 0);
+
+#ifdef __EMX__
+ else if (!unixy_shell)
+ {
+ /* new_line is local, must not be freed therefore
+ We use line here instead of new_line because we run the shell
+ manually. */
+ size_t line_len = strlen (line);
+ char *p = new_line;
+ char *q = new_line;
+ memcpy (new_line, line, line_len + 1);
+ /* Replace all backslash-newline combination and also following tabs.
+ Important: stop at the first '\n' because that's what the loop above
+ did. The next line starting at restp[0] will be executed during the
+ next call of this function. */
+ while (*q != '\0' && *q != '\n')
+ {
+ if (q[0] == '\\' && q[1] == '\n')
+ q += 2; /* remove '\\' and '\n' */
+ else
+ *p++ = *q++;
+ }
+ *p = '\0';
+
+# ifndef NO_CMD_DEFAULT
+ if (strnicmp (new_line, "echo", 4) == 0
+ && (new_line[4] == ' ' || new_line[4] == '\t'))
+ {
+ /* the builtin echo command: handle it separately */
+ size_t echo_len = line_len - 5;
+ char *echo_line = new_line + 5;
+
+ /* special case: echo 'x="y"'
+ cmd works this way: a string is printed as is, i.e., no quotes
+ are removed. But autoconf uses a command like echo 'x="y"' to
+ determine whether make works. autoconf expects the output x="y"
+ so we will do exactly that.
+ Note: if we do not allow cmd to be the default shell
+ we do not need this kind of voodoo */
+ if (echo_line[0] == '\''
+ && echo_line[echo_len - 1] == '\''
+ && strncmp (echo_line + 1, "ac_maketemp=",
+ strlen ("ac_maketemp=")) == 0)
+ {
+ /* remove the enclosing quotes */
+ memmove (echo_line, echo_line + 1, echo_len - 2);
+ echo_line[echo_len - 2] = '\0';
+ }
+ }
+# endif
+
+ {
+ /* Let the shell decide what to do. Put the command line into the
+ 2nd command line argument and hope for the best ;-) */
+ size_t sh_len = strlen (shell);
+
+ /* exactly 3 arguments + NULL */
+ new_argv = xmalloc (4 * sizeof (char *));
+ /* Exactly strlen(shell) + strlen("/c") + strlen(line) + 3 times
+ the trailing '\0' */
+ new_argv[0] = xmalloc (sh_len + line_len + 5);
+ memcpy (new_argv[0], shell, sh_len + 1);
+ new_argv[1] = new_argv[0] + sh_len + 1;
+ memcpy (new_argv[1], "/c", 3);
+ new_argv[2] = new_argv[1] + 3;
+ memcpy (new_argv[2], new_line, line_len + 1);
+ new_argv[3] = NULL;
+ }
+ }
+#elif defined(__MSDOS__)
+ else
+ {
+ /* With MSDOS shells, we must construct the command line here
+ instead of recursively calling ourselves, because we
+ cannot backslash-escape the special characters (see above). */
+ new_argv = xmalloc (sizeof (char *));
+ line_len = strlen (new_line) - shell_len - sflags_len - 2;
+ new_argv[0] = xmalloc (line_len + 1);
+ strncpy (new_argv[0],
+ new_line + shell_len + sflags_len + 2, line_len);
+ new_argv[0][line_len] = '\0';
+ }
+#else
+ else
+ fatal (NILF, CSTRLEN (__FILE__) + INTSTR_LENGTH,
+ _("%s (line %d) Bad shell context (!unixy && !batch_mode_shell)\n"),
+ __FILE__, __LINE__);
+#endif
+
+ free (new_line);
+ }
+#endif /* ! AMIGA */
+
+ return new_argv;
+}
+#endif /* !VMS */
+
+/* Figure out the argument list necessary to run LINE as a command. Try to
+ avoid using a shell. This routine handles only ' quoting, and " quoting
+ when no backslash, $ or ' characters are seen in the quotes. Starting
+ quotes may be escaped with a backslash. If any of the characters in
+ sh_chars is seen, or any of the builtin commands listed in sh_cmds
+ is the first word of a line, the shell is used.
+
+ If RESTP is not NULL, *RESTP is set to point to the first newline in LINE.
+ If *RESTP is NULL, newlines will be ignored.
+
+ FILE is the target whose commands these are. It is used for
+ variable expansion for $(SHELL) and $(IFS). */
+
+char **
+construct_command_argv (char *line, char **restp, struct file *file,
+ int cmd_flags, char **batch_filename)
+{
+ char *shell, *ifs, *shellflags;
+ char **argv;
+
+#ifdef VMS
+ char *cptr;
+ int argc;
+
+ argc = 0;
+ cptr = line;
+ for (;;)
+ {
+ while ((*cptr != 0) && (ISSPACE (*cptr)))
+ cptr++;
+ if (*cptr == 0)
+ break;
+ while ((*cptr != 0) && (!ISSPACE (*cptr)))
+ cptr++;
+ argc++;
+ }
+
+ argv = xmalloc (argc * sizeof (char *));
+ if (argv == 0)
+ abort ();
+
+ cptr = line;
+ argc = 0;
+ for (;;)
+ {
+ while ((*cptr != 0) && (ISSPACE (*cptr)))
+ cptr++;
+ if (*cptr == 0)
+ break;
+ DB (DB_JOBS, ("argv[%d] = [%s]\n", argc, cptr));
+ argv[argc++] = cptr;
+ while ((*cptr != 0) && (!ISSPACE (*cptr)))
+ cptr++;
+ if (*cptr != 0)
+ *cptr++ = 0;
+ }
+#else
+ {
+ /* Turn off --warn-undefined-variables while we expand SHELL and IFS. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ shell = allocated_variable_expand_for_file ("$(SHELL)", file);
+#ifdef WINDOWS32
+ /*
+ * Convert to forward slashes so that construct_command_argv_internal()
+ * is not confused.
+ */
+ if (shell)
+ {
+ char *p = w32ify (shell, 0);
+ strcpy (shell, p);
+ }
+#endif
+#ifdef __EMX__
+ {
+ static const char *unixroot = NULL;
+ static const char *last_shell = "";
+ static int init = 0;
+ if (init == 0)
+ {
+ unixroot = getenv ("UNIXROOT");
+ /* unixroot must be NULL or not empty */
+ if (unixroot && unixroot[0] == '\0') unixroot = NULL;
+ init = 1;
+ }
+
+ /* if we have an unixroot drive and if shell is not default_shell
+ (which means it's either cmd.exe or the test has already been
+ performed) and if shell is an absolute path without drive letter,
+ try whether it exists e.g.: if "/bin/sh" does not exist use
+ "$UNIXROOT/bin/sh" instead. */
+ if (unixroot && shell && strcmp (shell, last_shell) != 0
+ && (shell[0] == '/' || shell[0] == '\\'))
+ {
+ /* trying a new shell, check whether it exists */
+ size_t size = strlen (shell);
+ char *buf = xmalloc (size + 7);
+ memcpy (buf, shell, size);
+ memcpy (buf + size, ".exe", 5); /* including the trailing '\0' */
+ if (access (shell, F_OK) != 0 && access (buf, F_OK) != 0)
+ {
+ /* try the same for the unixroot drive */
+ memmove (buf + 2, buf, size + 5);
+ buf[0] = unixroot[0];
+ buf[1] = unixroot[1];
+ if (access (buf, F_OK) == 0)
+ /* we have found a shell! */
+ /* free(shell); */
+ shell = buf;
+ else
+ free (buf);
+ }
+ else
+ free (buf);
+ }
+ }
+#endif /* __EMX__ */
+
+ shellflags = allocated_variable_expand_for_file ("$(.SHELLFLAGS)", file);
+ ifs = allocated_variable_expand_for_file ("$(IFS)", file);
+
+ warn_undefined_variables_flag = save;
+ }
+
+ argv = construct_command_argv_internal (line, restp, shell, shellflags, ifs,
+ cmd_flags, batch_filename);
+
+ free (shell);
+ free (shellflags);
+ free (ifs);
+#endif /* !VMS */
+ return argv;
+}
+
+#if !defined(HAVE_DUP2) && !defined(_AMIGA)
+int
+dup2 (int old, int new)
+{
+ int fd;
+
+ (void) close (new);
+ EINTRLOOP (fd, dup (old));
+ if (fd != new)
+ {
+ (void) close (fd);
+ errno = EMFILE;
+ return -1;
+ }
+
+ return fd;
+}
+#endif /* !HAVE_DUP2 && !_AMIGA */
+
+/* On VMS systems, include special VMS functions. */
+
+#ifdef VMS
+#include "vmsjobs.c"
+#endif
diff --git a/job.h b/job.h
new file mode 100644
index 0000000..37cceb6
--- /dev/null
+++ b/job.h
@@ -0,0 +1,159 @@
+/* Definitions for managing subprocesses in GNU Make.
+Copyright (C) 1992-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "output.h"
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#else
+# include <sys/file.h>
+#endif
+
+/* How to set close-on-exec for a file descriptor. */
+
+#if !defined(F_SETFD) || !defined(F_GETFD)
+# ifdef WINDOWS32
+# define CLOSE_ON_EXEC(_d) process_noinherit(_d)
+# else
+# define CLOSE_ON_EXEC(_d)
+# endif
+#else
+# ifndef FD_CLOEXEC
+# define FD_CLOEXEC 1
+# endif
+# define CLOSE_ON_EXEC(_d) (void) fcntl ((_d), F_SETFD, FD_CLOEXEC)
+#endif
+
+#ifdef NO_OUTPUT_SYNC
+# define RECORD_SYNC_MUTEX(m) \
+ O (error, NILF, \
+ _("-O[TYPE] (--output-sync[=TYPE]) is not configured for this build."));
+#else
+# ifdef WINDOWS32
+/* For emulations in w32/compat/posixfcn.c. */
+# define F_GETFD 1
+# define F_SETLKW 2
+/* Implementation note: None of the values of l_type below can be zero
+ -- they are compared with a static instance of the struct, so zero
+ means unknown/invalid, see w32/compat/posixfcn.c. */
+# define F_WRLCK 1
+# define F_UNLCK 2
+
+struct flock
+ {
+ short l_type;
+ short l_whence;
+ off_t l_start;
+ off_t l_len;
+ pid_t l_pid;
+ };
+
+/* This type is actually a HANDLE, but we want to avoid including
+ windows.h as much as possible. */
+typedef intptr_t sync_handle_t;
+
+/* Public functions emulated/provided in posixfcn.c. */
+int fcntl (intptr_t fd, int cmd, ...);
+intptr_t create_mutex (void);
+int same_stream (FILE *f1, FILE *f2);
+
+# define RECORD_SYNC_MUTEX(m) record_sync_mutex(m)
+void record_sync_mutex (const char *str);
+void prepare_mutex_handle_string (intptr_t hdl);
+# else /* !WINDOWS32 */
+
+typedef int sync_handle_t; /* file descriptor */
+
+# define RECORD_SYNC_MUTEX(m) (void)(m)
+
+# endif
+#endif /* !NO_OUTPUT_SYNC */
+
+/* Structure describing a running or dead child process. */
+
+struct child
+ {
+ struct child *next; /* Link in the chain. */
+
+ struct file *file; /* File being remade. */
+
+ char **environment; /* Environment for commands. */
+ char *sh_batch_file; /* Script file for shell commands */
+ char **command_lines; /* Array of variable-expanded cmd lines. */
+ char *command_ptr; /* Ptr into command_lines[command_line]. */
+
+#ifdef VMS
+ char *comname; /* Temporary command file name */
+ int efn; /* Completion event flag number */
+ int cstatus; /* Completion status */
+ int vms_launch_status; /* non-zero if lib$spawn, etc failed */
+#endif
+
+ unsigned int command_line; /* Index into command_lines. */
+ struct output output; /* Output for this child. */
+ pid_t pid; /* Child process's ID number. */
+ unsigned int remote:1; /* Nonzero if executing remotely. */
+ unsigned int noerror:1; /* Nonzero if commands contained a '-'. */
+ unsigned int good_stdin:1; /* Nonzero if this child has a good stdin. */
+ unsigned int deleted:1; /* Nonzero if targets have been deleted. */
+ unsigned int recursive:1; /* Nonzero for recursive command ('+' etc.) */
+ unsigned int dontcare:1; /* Saved dontcare flag. */
+ };
+
+extern struct child *children;
+
+/* A signal handler for SIGCHLD, if needed. */
+RETSIGTYPE child_handler (int sig);
+int is_bourne_compatible_shell(const char *path);
+void new_job (struct file *file);
+void reap_children (int block, int err);
+void start_waiting_jobs (void);
+
+char **construct_command_argv (char *line, char **restp, struct file *file,
+ int cmd_flags, char** batch_file);
+
+#ifdef VMS
+int child_execute_job (struct child *child, char *argv);
+#else
+# define FD_STDIN (fileno (stdin))
+# define FD_STDOUT (fileno (stdout))
+# define FD_STDERR (fileno (stderr))
+int child_execute_job (struct output *out, int good_stdin, char **argv, char **envp);
+#endif
+
+#ifdef _AMIGA
+void exec_command (char **argv) __attribute__ ((noreturn));
+#elif defined(__EMX__)
+int exec_command (char **argv, char **envp);
+#else
+void exec_command (char **argv, char **envp) __attribute__ ((noreturn));
+#endif
+
+extern unsigned int job_slots_used;
+
+void block_sigs (void);
+#ifdef POSIX
+void unblock_sigs (void);
+#else
+#ifdef HAVE_SIGSETMASK
+extern int fatal_signal_mask;
+#define unblock_sigs() sigsetmask (0)
+#else
+#define unblock_sigs()
+#endif
+#endif
+
+extern unsigned int jobserver_tokens;
diff --git a/load.c b/load.c
new file mode 100644
index 0000000..37e7b8e
--- /dev/null
+++ b/load.c
@@ -0,0 +1,267 @@
+/* Loading dynamic objects for GNU Make.
+Copyright (C) 2012-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#if MAKE_LOAD
+
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <errno.h>
+
+#define SYMBOL_EXTENSION "_gmk_setup"
+
+#include "debug.h"
+#include "filedef.h"
+#include "variable.h"
+
+/* Tru64 V4.0 does not have this flag */
+#ifndef RTLD_GLOBAL
+# define RTLD_GLOBAL 0
+#endif
+
+struct load_list
+ {
+ struct load_list *next;
+ const char *name;
+ void *dlp;
+ };
+
+static struct load_list *loaded_syms = NULL;
+
+static load_func_t
+load_object (const floc *flocp, int noerror, const char *ldname,
+ const char *symname)
+{
+ static void *global_dl = NULL;
+ load_func_t symp;
+
+ if (! global_dl)
+ {
+ global_dl = dlopen (NULL, RTLD_NOW|RTLD_GLOBAL);
+ if (! global_dl)
+ {
+ const char *err = dlerror ();
+ OS (fatal, flocp, _("Failed to open global symbol table: %s"), err);
+ }
+ }
+
+ symp = (load_func_t) dlsym (global_dl, symname);
+ if (! symp)
+ {
+ struct load_list *new;
+ void *dlp = NULL;
+
+ /* If the path has no "/", try the current directory first. */
+ if (! strchr (ldname, '/')
+#ifdef HAVE_DOS_PATHS
+ && ! strchr (ldname, '\\')
+#endif
+ )
+ dlp = dlopen (concat (2, "./", ldname), RTLD_LAZY|RTLD_GLOBAL);
+
+ /* If we haven't opened it yet, try the default search path. */
+ if (! dlp)
+ dlp = dlopen (ldname, RTLD_LAZY|RTLD_GLOBAL);
+
+ /* Still no? Then fail. */
+ if (! dlp)
+ {
+ const char *err = dlerror ();
+ if (noerror)
+ DB (DB_BASIC, ("%s", err));
+ else
+ OS (error, flocp, "%s", err);
+ return NULL;
+ }
+
+ /* Assert that the GPL license symbol is defined. */
+ symp = (load_func_t) dlsym (dlp, "plugin_is_GPL_compatible");
+ if (! symp)
+ OS (fatal, flocp,
+ _("Loaded object %s is not declared to be GPL compatible"),
+ ldname);
+
+ symp = (load_func_t) dlsym (dlp, symname);
+ if (! symp)
+ {
+ const char *err = dlerror ();
+ OSSS (fatal, flocp, _("Failed to load symbol %s from %s: %s"),
+ symname, ldname, err);
+ }
+
+ /* Add this symbol to a trivial lookup table. This is not efficient but
+ it's highly unlikely we'll be loading lots of objects, and we only
+ need it to look them up on unload, if we rebuild them. */
+ new = xmalloc (sizeof (struct load_list));
+ new->name = xstrdup (ldname);
+ new->dlp = dlp;
+ new->next = loaded_syms;
+ loaded_syms = new;
+ }
+
+ return symp;
+}
+
+int
+load_file (const floc *flocp, const char **ldname, int noerror)
+{
+ int nmlen = strlen (*ldname);
+ char *new = alloca (nmlen + CSTRLEN (SYMBOL_EXTENSION) + 1);
+ char *symname = NULL;
+ char *loaded;
+ const char *fp;
+ int r;
+ load_func_t symp;
+
+ /* Break the input into an object file name and a symbol name. If no symbol
+ name was provided, compute one from the object file name. */
+ fp = strchr (*ldname, '(');
+ if (fp)
+ {
+ const char *ep;
+
+ /* There's an open paren, so see if there's a close paren: if so use
+ that as the symbol name. We can't have whitespace: it would have
+ been chopped up before this function is called. */
+ ep = strchr (fp+1, ')');
+ if (ep && ep[1] == '\0')
+ {
+ int l = fp - *ldname;;
+
+ ++fp;
+ if (fp == ep)
+ OS (fatal, flocp, _("Empty symbol name for load: %s"), *ldname);
+
+ /* Make a copy of the ldname part. */
+ memcpy (new, *ldname, l);
+ new[l] = '\0';
+ *ldname = new;
+ nmlen = l;
+
+ /* Make a copy of the symbol name part. */
+ symname = new + l + 1;
+ memcpy (symname, fp, ep - fp);
+ symname[ep - fp] = '\0';
+ }
+ }
+
+ /* Add this name to the string cache so it can be reused later. */
+ *ldname = strcache_add (*ldname);
+
+ /* If this object has been loaded, we're done. */
+ loaded = allocated_variable_expand ("$(.LOADED)");
+ fp = strstr (loaded, *ldname);
+ r = fp && (fp==loaded || fp[-1]==' ') && (fp[nmlen]=='\0' || fp[nmlen]==' ');
+ if (r)
+ goto exit;
+
+ /* If we didn't find a symbol name yet, construct it from the ldname. */
+ if (! symname)
+ {
+ char *p = new;
+
+ fp = strrchr (*ldname, '/');
+#ifdef HAVE_DOS_PATHS
+ if (fp)
+ {
+ const char *fp2 = strchr (fp, '\\');
+
+ if (fp2 > fp)
+ fp = fp2;
+ }
+ else
+ fp = strrchr (*ldname, '\\');
+ /* The (improbable) case of d:foo. */
+ if (fp && *fp && fp[1] == ':')
+ fp++;
+#endif
+ if (!fp)
+ fp = *ldname;
+ else
+ ++fp;
+ while (isalnum (*fp) || *fp == '_')
+ *(p++) = *(fp++);
+ strcpy (p, SYMBOL_EXTENSION);
+ symname = new;
+ }
+
+ DB (DB_VERBOSE, (_("Loading symbol %s from %s\n"), symname, *ldname));
+
+ /* Load it! */
+ symp = load_object (flocp, noerror, *ldname, symname);
+ if (! symp)
+ return 0;
+
+ /* Invoke the symbol. */
+ r = (*symp) (flocp);
+
+ /* If it succeeded, add the load file to the loaded variable. */
+ if (r > 0)
+ {
+ size_t loadlen = strlen (loaded);
+ char *newval = alloca (loadlen + strlen (*ldname) + 2);
+ /* Don't add a space if it's empty. */
+ if (loadlen)
+ {
+ memcpy (newval, loaded, loadlen);
+ newval[loadlen++] = ' ';
+ }
+ strcpy (&newval[loadlen], *ldname);
+ do_variable_definition (flocp, ".LOADED", newval, o_default, f_simple, 0);
+ }
+
+ exit:
+ free (loaded);
+ return r;
+}
+
+void
+unload_file (const char *name)
+{
+ struct load_list *d;
+
+ for (d = loaded_syms; d != NULL; d = d->next)
+ if (streq (d->name, name) && d->dlp)
+ {
+ if (dlclose (d->dlp))
+ perror_with_name ("dlclose", d->name);
+ d->dlp = NULL;
+ break;
+ }
+}
+
+#else
+
+int
+load_file (const floc *flocp, const char **ldname UNUSED, int noerror)
+{
+ if (! noerror)
+ O (fatal, flocp,
+ _("The 'load' operation is not supported on this platform."));
+
+ return 0;
+}
+
+void
+unload_file (const char *name UNUSED)
+{
+ O (fatal, NILF, "INTERNAL: Cannot unload when load is not supported!");
+}
+
+#endif /* MAKE_LOAD */
diff --git a/loadapi.c b/loadapi.c
new file mode 100644
index 0000000..14b75f8
--- /dev/null
+++ b/loadapi.c
@@ -0,0 +1,82 @@
+/* API for GNU Make dynamic objects.
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include "filedef.h"
+#include "variable.h"
+#include "dep.h"
+
+/* Allocate a buffer in our context, so we can free it. */
+char *
+gmk_alloc (unsigned int len)
+{
+ return xmalloc (len);
+}
+
+/* Free a buffer returned by gmk_expand(). */
+void
+gmk_free (char *s)
+{
+ free (s);
+}
+
+/* Evaluate a buffer as make syntax.
+ Ideally eval_buffer() will take const char *, but not yet. */
+void
+gmk_eval (const char *buffer, const gmk_floc *gfloc)
+{
+ /* Preserve existing variable buffer context. */
+ char *pbuf;
+ unsigned int plen;
+ char *s;
+ floc fl;
+ floc *flp;
+
+ if (gfloc)
+ {
+ fl.filenm = gfloc->filenm;
+ fl.lineno = gfloc->lineno;
+ fl.offset = 0;
+ flp = &fl;
+ }
+ else
+ flp = NULL;
+
+ install_variable_buffer (&pbuf, &plen);
+
+ s = xstrdup (buffer);
+ eval_buffer (s, flp);
+ free (s);
+
+ restore_variable_buffer (pbuf, plen);
+}
+
+/* Expand a string and return an allocated buffer.
+ Caller must call gmk_free() with this buffer. */
+char *
+gmk_expand (const char *ref)
+{
+ return allocated_variable_expand (ref);
+}
+
+/* Register a function to be called from makefiles. */
+void
+gmk_add_function (const char *name, gmk_func_ptr func,
+ unsigned int min, unsigned int max, unsigned int flags)
+{
+ define_new_function (reading_file, name, min, max, flags, func);
+}
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..fa8045f
--- /dev/null
+++ b/main.c
@@ -0,0 +1,3479 @@
+/* Argument parsing and main program of GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "os.h"
+#include "filedef.h"
+#include "dep.h"
+#include "variable.h"
+#include "job.h"
+#include "commands.h"
+#include "rule.h"
+#include "debug.h"
+#include "getopt.h"
+
+#include <assert.h>
+#ifdef _AMIGA
+# include <dos/dos.h>
+# include <proto/dos.h>
+#endif
+#ifdef WINDOWS32
+# include <windows.h>
+# include <io.h>
+# include "pathstuff.h"
+# include "sub_proc.h"
+# include "w32err.h"
+#endif
+#ifdef __EMX__
+# include <sys/types.h>
+# include <sys/wait.h>
+#endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+#ifdef _AMIGA
+int __stack = 20000; /* Make sure we have 20K of stack space */
+#endif
+#ifdef VMS
+int vms_use_mcr_command = 0;
+int vms_always_use_cmd_file = 0;
+int vms_gnv_shell = 0;
+int vms_legacy_behavior = 0;
+int vms_comma_separator = 0;
+int vms_unix_simulation = 0;
+int vms_report_unix_paths = 0;
+
+/* Evaluates if a VMS environment option is set, only look at first character */
+static int
+get_vms_env_flag (const char *name, int default_value)
+{
+char * value;
+char x;
+
+ value = getenv (name);
+ if (value == NULL)
+ return default_value;
+
+ x = toupper (value[0]);
+ switch (x)
+ {
+ case '1':
+ case 'T':
+ case 'E':
+ return 1;
+ break;
+ case '0':
+ case 'F':
+ case 'D':
+ return 0;
+ }
+}
+#endif
+
+#if defined HAVE_WAITPID || defined HAVE_WAIT3
+# define HAVE_WAIT_NOHANG
+#endif
+
+#ifndef HAVE_UNISTD_H
+int chdir ();
+#endif
+#ifndef STDC_HEADERS
+# ifndef sun /* Sun has an incorrect decl in a header. */
+void exit (int) __attribute__ ((noreturn));
+# endif
+double atof ();
+#endif
+
+static void clean_jobserver (int status);
+static void print_data_base (void);
+static void print_version (void);
+static void decode_switches (int argc, const char **argv, int env);
+static void decode_env_switches (const char *envar, unsigned int len);
+static struct variable *define_makeflags (int all, int makefile);
+static char *quote_for_env (char *out, const char *in);
+static void initialize_global_hash_tables (void);
+
+
+/* The structure that describes an accepted command switch. */
+
+struct command_switch
+ {
+ int c; /* The switch character. */
+
+ enum /* Type of the value. */
+ {
+ flag, /* Turn int flag on. */
+ flag_off, /* Turn int flag off. */
+ string, /* One string per invocation. */
+ strlist, /* One string per switch. */
+ filename, /* A string containing a file name. */
+ positive_int, /* A positive integer. */
+ floating, /* A floating-point number (double). */
+ ignore /* Ignored. */
+ } type;
+
+ void *value_ptr; /* Pointer to the value-holding variable. */
+
+ unsigned int env:1; /* Can come from MAKEFLAGS. */
+ unsigned int toenv:1; /* Should be put in MAKEFLAGS. */
+ unsigned int no_makefile:1; /* Don't propagate when remaking makefiles. */
+
+ const void *noarg_value; /* Pointer to value used if no arg given. */
+ const void *default_value; /* Pointer to default value. */
+
+ const char *long_name; /* Long option name. */
+ };
+
+/* True if C is a switch value that corresponds to a short option. */
+
+#define short_option(c) ((c) <= CHAR_MAX)
+
+/* The structure used to hold the list of strings given
+ in command switches of a type that takes strlist arguments. */
+
+struct stringlist
+ {
+ const char **list; /* Nil-terminated list of strings. */
+ unsigned int idx; /* Index into above. */
+ unsigned int max; /* Number of pointers allocated. */
+ };
+
+
+/* The recognized command switches. */
+
+/* Nonzero means do extra verification (that may slow things down). */
+
+int verify_flag;
+
+/* Nonzero means do not print commands to be executed (-s). */
+
+int silent_flag;
+
+/* Nonzero means just touch the files
+ that would appear to need remaking (-t) */
+
+int touch_flag;
+
+/* Nonzero means just print what commands would need to be executed,
+ don't actually execute them (-n). */
+
+int just_print_flag;
+
+/* Print debugging info (--debug). */
+
+static struct stringlist *db_flags = 0;
+static int debug_flag = 0;
+
+int db_level = 0;
+
+/* Synchronize output (--output-sync). */
+
+char *output_sync_option = 0;
+
+#ifdef WINDOWS32
+/* Suspend make in main for a short time to allow debugger to attach */
+
+int suspend_flag = 0;
+#endif
+
+/* Environment variables override makefile definitions. */
+
+int env_overrides = 0;
+
+/* Nonzero means ignore status codes returned by commands
+ executed to remake files. Just treat them all as successful (-i). */
+
+int ignore_errors_flag = 0;
+
+/* Nonzero means don't remake anything, just print the data base
+ that results from reading the makefile (-p). */
+
+int print_data_base_flag = 0;
+
+/* Nonzero means don't remake anything; just return a nonzero status
+ if the specified targets are not up to date (-q). */
+
+int question_flag = 0;
+
+/* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */
+
+int no_builtin_rules_flag = 0;
+int no_builtin_variables_flag = 0;
+
+/* Nonzero means keep going even if remaking some file fails (-k). */
+
+int keep_going_flag;
+int default_keep_going_flag = 0;
+
+/* Nonzero means check symlink mtimes. */
+
+int check_symlink_flag = 0;
+
+/* Nonzero means print directory before starting and when done (-w). */
+
+int print_directory_flag = 0;
+
+/* Nonzero means ignore print_directory_flag and never print the directory.
+ This is necessary because print_directory_flag is set implicitly. */
+
+int inhibit_print_directory_flag = 0;
+
+/* Nonzero means print version information. */
+
+int print_version_flag = 0;
+
+/* List of makefiles given with -f switches. */
+
+static struct stringlist *makefiles = 0;
+
+/* Size of the stack when we started. */
+
+#ifdef SET_STACK_SIZE
+struct rlimit stack_limit;
+#endif
+
+
+/* Number of job slots for parallelism. */
+
+unsigned int job_slots;
+
+#define INVALID_JOB_SLOTS (-1)
+static unsigned int master_job_slots = 0;
+static int arg_job_slots = INVALID_JOB_SLOTS;
+
+static const int default_job_slots = INVALID_JOB_SLOTS;
+
+/* Value of job_slots that means no limit. */
+
+static const int inf_jobs = 0;
+
+/* Authorization for the jobserver. */
+
+static char *jobserver_auth = NULL;
+
+/* Handle for the mutex used on Windows to synchronize output of our
+ children under -O. */
+
+char *sync_mutex = NULL;
+
+/* Maximum load average at which multiple jobs will be run.
+ Negative values mean unlimited, while zero means limit to
+ zero load (which could be useful to start infinite jobs remotely
+ but one at a time locally). */
+#ifndef NO_FLOAT
+double max_load_average = -1.0;
+double default_load_average = -1.0;
+#else
+int max_load_average = -1;
+int default_load_average = -1;
+#endif
+
+/* List of directories given with -C switches. */
+
+static struct stringlist *directories = 0;
+
+/* List of include directories given with -I switches. */
+
+static struct stringlist *include_directories = 0;
+
+/* List of files given with -o switches. */
+
+static struct stringlist *old_files = 0;
+
+/* List of files given with -W switches. */
+
+static struct stringlist *new_files = 0;
+
+/* List of strings to be eval'd. */
+static struct stringlist *eval_strings = 0;
+
+/* If nonzero, we should just print usage and exit. */
+
+static int print_usage_flag = 0;
+
+/* If nonzero, we should print a warning message
+ for each reference to an undefined variable. */
+
+int warn_undefined_variables_flag;
+
+/* If nonzero, always build all targets, regardless of whether
+ they appear out of date or not. */
+
+static int always_make_set = 0;
+int always_make_flag = 0;
+
+/* If nonzero, we're in the "try to rebuild makefiles" phase. */
+
+int rebuilding_makefiles = 0;
+
+/* Remember the original value of the SHELL variable, from the environment. */
+
+struct variable shell_var;
+
+/* This character introduces a command: it's the first char on the line. */
+
+char cmd_prefix = '\t';
+
+
+/* The usage output. We write it this way to make life easier for the
+ translators, especially those trying to translate to right-to-left
+ languages like Hebrew. */
+
+static const char *const usage[] =
+ {
+ N_("Options:\n"),
+ N_("\
+ -b, -m Ignored for compatibility.\n"),
+ N_("\
+ -B, --always-make Unconditionally make all targets.\n"),
+ N_("\
+ -C DIRECTORY, --directory=DIRECTORY\n\
+ Change to DIRECTORY before doing anything.\n"),
+ N_("\
+ -d Print lots of debugging information.\n"),
+ N_("\
+ --debug[=FLAGS] Print various types of debugging information.\n"),
+ N_("\
+ -e, --environment-overrides\n\
+ Environment variables override makefiles.\n"),
+ N_("\
+ --eval=STRING Evaluate STRING as a makefile statement.\n"),
+ N_("\
+ -f FILE, --file=FILE, --makefile=FILE\n\
+ Read FILE as a makefile.\n"),
+ N_("\
+ -h, --help Print this message and exit.\n"),
+ N_("\
+ -i, --ignore-errors Ignore errors from recipes.\n"),
+ N_("\
+ -I DIRECTORY, --include-dir=DIRECTORY\n\
+ Search DIRECTORY for included makefiles.\n"),
+ N_("\
+ -j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
+ N_("\
+ -k, --keep-going Keep going when some targets can't be made.\n"),
+ N_("\
+ -l [N], --load-average[=N], --max-load[=N]\n\
+ Don't start multiple jobs unless load is below N.\n"),
+ N_("\
+ -L, --check-symlink-times Use the latest mtime between symlinks and target.\n"),
+ N_("\
+ -n, --just-print, --dry-run, --recon\n\
+ Don't actually run any recipe; just print them.\n"),
+ N_("\
+ -o FILE, --old-file=FILE, --assume-old=FILE\n\
+ Consider FILE to be very old and don't remake it.\n"),
+ N_("\
+ -O[TYPE], --output-sync[=TYPE]\n\
+ Synchronize output of parallel jobs by TYPE.\n"),
+ N_("\
+ -p, --print-data-base Print make's internal database.\n"),
+ N_("\
+ -q, --question Run no recipe; exit status says if up to date.\n"),
+ N_("\
+ -r, --no-builtin-rules Disable the built-in implicit rules.\n"),
+ N_("\
+ -R, --no-builtin-variables Disable the built-in variable settings.\n"),
+ N_("\
+ -s, --silent, --quiet Don't echo recipes.\n"),
+ N_("\
+ -S, --no-keep-going, --stop\n\
+ Turns off -k.\n"),
+ N_("\
+ -t, --touch Touch targets instead of remaking them.\n"),
+ N_("\
+ --trace Print tracing information.\n"),
+ N_("\
+ -v, --version Print the version number of make and exit.\n"),
+ N_("\
+ -w, --print-directory Print the current directory.\n"),
+ N_("\
+ --no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
+ N_("\
+ -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
+ Consider FILE to be infinitely new.\n"),
+ N_("\
+ --warn-undefined-variables Warn when an undefined variable is referenced.\n"),
+ NULL
+ };
+
+/* The table of command switches.
+ Order matters here: this is the order MAKEFLAGS will be constructed.
+ So be sure all simple flags (single char, no argument) come first. */
+
+static const struct command_switch switches[] =
+ {
+ { 'b', ignore, 0, 0, 0, 0, 0, 0, 0 },
+ { 'B', flag, &always_make_set, 1, 1, 0, 0, 0, "always-make" },
+ { 'd', flag, &debug_flag, 1, 1, 0, 0, 0, 0 },
+#ifdef WINDOWS32
+ { 'D', flag, &suspend_flag, 1, 1, 0, 0, 0, "suspend-for-debug" },
+#endif
+ { 'e', flag, &env_overrides, 1, 1, 0, 0, 0, "environment-overrides", },
+ { 'h', flag, &print_usage_flag, 0, 0, 0, 0, 0, "help" },
+ { 'i', flag, &ignore_errors_flag, 1, 1, 0, 0, 0, "ignore-errors" },
+ { 'k', flag, &keep_going_flag, 1, 1, 0, 0, &default_keep_going_flag,
+ "keep-going" },
+ { 'L', flag, &check_symlink_flag, 1, 1, 0, 0, 0, "check-symlink-times" },
+ { 'm', ignore, 0, 0, 0, 0, 0, 0, 0 },
+ { 'n', flag, &just_print_flag, 1, 1, 1, 0, 0, "just-print" },
+ { 'p', flag, &print_data_base_flag, 1, 1, 0, 0, 0, "print-data-base" },
+ { 'q', flag, &question_flag, 1, 1, 1, 0, 0, "question" },
+ { 'r', flag, &no_builtin_rules_flag, 1, 1, 0, 0, 0, "no-builtin-rules" },
+ { 'R', flag, &no_builtin_variables_flag, 1, 1, 0, 0, 0,
+ "no-builtin-variables" },
+ { 's', flag, &silent_flag, 1, 1, 0, 0, 0, "silent" },
+ { 'S', flag_off, &keep_going_flag, 1, 1, 0, 0, &default_keep_going_flag,
+ "no-keep-going" },
+ { 't', flag, &touch_flag, 1, 1, 1, 0, 0, "touch" },
+ { 'v', flag, &print_version_flag, 1, 1, 0, 0, 0, "version" },
+ { 'w', flag, &print_directory_flag, 1, 1, 0, 0, 0, "print-directory" },
+
+ /* These options take arguments. */
+ { 'C', filename, &directories, 0, 0, 0, 0, 0, "directory" },
+ { 'f', filename, &makefiles, 0, 0, 0, 0, 0, "file" },
+ { 'I', filename, &include_directories, 1, 1, 0, 0, 0,
+ "include-dir" },
+ { 'j', positive_int, &arg_job_slots, 1, 1, 0, &inf_jobs, &default_job_slots,
+ "jobs" },
+#ifndef NO_FLOAT
+ { 'l', floating, &max_load_average, 1, 1, 0, &default_load_average,
+ &default_load_average, "load-average" },
+#else
+ { 'l', positive_int, &max_load_average, 1, 1, 0, &default_load_average,
+ &default_load_average, "load-average" },
+#endif
+ { 'o', filename, &old_files, 0, 0, 0, 0, 0, "old-file" },
+ { 'O', string, &output_sync_option, 1, 1, 0, "target", 0, "output-sync" },
+ { 'W', filename, &new_files, 0, 0, 0, 0, 0, "what-if" },
+
+ /* These are long-style options. */
+ { CHAR_MAX+1, strlist, &db_flags, 1, 1, 0, "basic", 0, "debug" },
+ { CHAR_MAX+2, string, &jobserver_auth, 1, 1, 0, 0, 0, "jobserver-auth" },
+ { CHAR_MAX+3, flag, &trace_flag, 1, 1, 0, 0, 0, "trace" },
+ { CHAR_MAX+4, flag, &inhibit_print_directory_flag, 1, 1, 0, 0, 0,
+ "no-print-directory" },
+ { CHAR_MAX+5, flag, &warn_undefined_variables_flag, 1, 1, 0, 0, 0,
+ "warn-undefined-variables" },
+ { CHAR_MAX+6, strlist, &eval_strings, 1, 0, 0, 0, 0, "eval" },
+ { CHAR_MAX+7, string, &sync_mutex, 1, 1, 0, 0, 0, "sync-mutex" },
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ };
+
+/* Secondary long names for options. */
+
+static struct option long_option_aliases[] =
+ {
+ { "quiet", no_argument, 0, 's' },
+ { "stop", no_argument, 0, 'S' },
+ { "new-file", required_argument, 0, 'W' },
+ { "assume-new", required_argument, 0, 'W' },
+ { "assume-old", required_argument, 0, 'o' },
+ { "max-load", optional_argument, 0, 'l' },
+ { "dry-run", no_argument, 0, 'n' },
+ { "recon", no_argument, 0, 'n' },
+ { "makefile", required_argument, 0, 'f' },
+ };
+
+/* List of goal targets. */
+
+static struct goaldep *goals, *lastgoal;
+
+/* List of variables which were defined on the command line
+ (or, equivalently, in MAKEFLAGS). */
+
+struct command_variable
+ {
+ struct command_variable *next;
+ struct variable *variable;
+ };
+static struct command_variable *command_variables;
+
+/* The name we were invoked with. */
+
+#ifdef WINDOWS32
+/* On MS-Windows, we chop off the .exe suffix in 'main', so this
+ cannot be 'const'. */
+char *program;
+#else
+const char *program;
+#endif
+
+/* Our current directory before processing any -C options. */
+
+char *directory_before_chdir;
+
+/* Our current directory after processing all -C options. */
+
+char *starting_directory;
+
+/* Value of the MAKELEVEL variable at startup (or 0). */
+
+unsigned int makelevel;
+
+/* Pointer to the value of the .DEFAULT_GOAL special variable.
+ The value will be the name of the goal to remake if the command line
+ does not override it. It can be set by the makefile, or else it's
+ the first target defined in the makefile whose name does not start
+ with '.'. */
+
+struct variable * default_goal_var;
+
+/* Pointer to structure for the file .DEFAULT
+ whose commands are used for any file that has none of its own.
+ This is zero if the makefiles do not define .DEFAULT. */
+
+struct file *default_file;
+
+/* Nonzero if we have seen the magic '.POSIX' target.
+ This turns on pedantic compliance with POSIX.2. */
+
+int posix_pedantic;
+
+/* Nonzero if we have seen the '.SECONDEXPANSION' target.
+ This turns on secondary expansion of prerequisites. */
+
+int second_expansion;
+
+/* Nonzero if we have seen the '.ONESHELL' target.
+ This causes the entire recipe to be handed to SHELL
+ as a single string, potentially containing newlines. */
+
+int one_shell;
+
+/* One of OUTPUT_SYNC_* if the "--output-sync" option was given. This
+ attempts to synchronize the output of parallel jobs such that the results
+ of each job stay together. */
+
+int output_sync = OUTPUT_SYNC_NONE;
+
+/* Nonzero if the "--trace" option was given. */
+
+int trace_flag = 0;
+
+/* Nonzero if we have seen the '.NOTPARALLEL' target.
+ This turns off parallel builds for this invocation of make. */
+
+int not_parallel;
+
+/* Nonzero if some rule detected clock skew; we keep track so (a) we only
+ print one warning about it during the run, and (b) we can print a final
+ warning at the end of the run. */
+
+int clock_skew_detected;
+
+/* Map of possible stop characters for searching strings. */
+#ifndef UCHAR_MAX
+# define UCHAR_MAX 255
+#endif
+unsigned short stopchar_map[UCHAR_MAX + 1] = {0};
+
+/* If output-sync is enabled we'll collect all the output generated due to
+ options, while reading makefiles, etc. */
+
+struct output make_sync;
+
+
+/* Mask of signals that are being caught with fatal_error_signal. */
+
+#ifdef POSIX
+sigset_t fatal_signal_set;
+#else
+# ifdef HAVE_SIGSETMASK
+int fatal_signal_mask;
+# endif
+#endif
+
+#if !HAVE_DECL_BSD_SIGNAL && !defined bsd_signal
+# if !defined HAVE_SIGACTION
+# define bsd_signal signal
+# else
+typedef RETSIGTYPE (*bsd_signal_ret_t) (int);
+
+static bsd_signal_ret_t
+bsd_signal (int sig, bsd_signal_ret_t func)
+{
+ struct sigaction act, oact;
+ act.sa_handler = func;
+ act.sa_flags = SA_RESTART;
+ sigemptyset (&act.sa_mask);
+ sigaddset (&act.sa_mask, sig);
+ if (sigaction (sig, &act, &oact) != 0)
+ return SIG_ERR;
+ return oact.sa_handler;
+}
+# endif
+#endif
+
+static void
+initialize_global_hash_tables (void)
+{
+ init_hash_global_variable_set ();
+ strcache_init ();
+ init_hash_files ();
+ hash_init_directories ();
+ hash_init_function_table ();
+}
+
+/* This character map locate stop chars when parsing GNU makefiles.
+ Each element is true if we should stop parsing on that character. */
+
+static void
+initialize_stopchar_map (void)
+{
+ int i;
+
+ stopchar_map[(int)'\0'] = MAP_NUL;
+ stopchar_map[(int)'#'] = MAP_COMMENT;
+ stopchar_map[(int)';'] = MAP_SEMI;
+ stopchar_map[(int)'='] = MAP_EQUALS;
+ stopchar_map[(int)':'] = MAP_COLON;
+ stopchar_map[(int)'%'] = MAP_PERCENT;
+ stopchar_map[(int)'|'] = MAP_PIPE;
+ stopchar_map[(int)'.'] = MAP_DOT | MAP_USERFUNC;
+ stopchar_map[(int)','] = MAP_COMMA;
+ stopchar_map[(int)'$'] = MAP_VARIABLE;
+
+ stopchar_map[(int)'-'] = MAP_USERFUNC;
+ stopchar_map[(int)'_'] = MAP_USERFUNC;
+
+ stopchar_map[(int)' '] = MAP_BLANK;
+ stopchar_map[(int)'\t'] = MAP_BLANK;
+
+ stopchar_map[(int)'/'] = MAP_DIRSEP;
+#if defined(VMS)
+ stopchar_map[(int)':'] |= MAP_DIRSEP;
+ stopchar_map[(int)']'] |= MAP_DIRSEP;
+ stopchar_map[(int)'>'] |= MAP_DIRSEP;
+#elif defined(HAVE_DOS_PATHS)
+ stopchar_map[(int)'\\'] |= MAP_DIRSEP;
+#endif
+
+ for (i = 1; i <= UCHAR_MAX; ++i)
+ {
+ if (isspace (i) && NONE_SET (stopchar_map[i], MAP_BLANK))
+ /* Don't mark blank characters as newline characters. */
+ stopchar_map[i] |= MAP_NEWLINE;
+ else if (isalnum (i))
+ stopchar_map[i] |= MAP_USERFUNC;
+ }
+}
+
+static const char *
+expand_command_line_file (const char *name)
+{
+ const char *cp;
+ char *expanded = 0;
+
+ if (name[0] == '\0')
+ O (fatal, NILF, _("empty string invalid as file name"));
+
+ if (name[0] == '~')
+ {
+ expanded = tilde_expand (name);
+ if (expanded && expanded[0] != '\0')
+ name = expanded;
+ }
+
+ /* This is also done in parse_file_seq, so this is redundant
+ for names read from makefiles. It is here for names passed
+ on the command line. */
+ while (name[0] == '.' && name[1] == '/')
+ {
+ name += 2;
+ while (name[0] == '/')
+ /* Skip following slashes: ".//foo" is "foo", not "/foo". */
+ ++name;
+ }
+
+ if (name[0] == '\0')
+ {
+ /* Nothing else but one or more "./", maybe plus slashes! */
+ name = "./";
+ }
+
+ cp = strcache_add (name);
+
+ free (expanded);
+
+ return cp;
+}
+
+/* Toggle -d on receipt of SIGUSR1. */
+
+#ifdef SIGUSR1
+static RETSIGTYPE
+debug_signal_handler (int sig UNUSED)
+{
+ db_level = db_level ? DB_NONE : DB_BASIC;
+}
+#endif
+
+static void
+decode_debug_flags (void)
+{
+ const char **pp;
+
+ if (debug_flag)
+ db_level = DB_ALL;
+
+ if (db_flags)
+ for (pp=db_flags->list; *pp; ++pp)
+ {
+ const char *p = *pp;
+
+ while (1)
+ {
+ switch (tolower (p[0]))
+ {
+ case 'a':
+ db_level |= DB_ALL;
+ break;
+ case 'b':
+ db_level |= DB_BASIC;
+ break;
+ case 'i':
+ db_level |= DB_BASIC | DB_IMPLICIT;
+ break;
+ case 'j':
+ db_level |= DB_JOBS;
+ break;
+ case 'm':
+ db_level |= DB_BASIC | DB_MAKEFILES;
+ break;
+ case 'n':
+ db_level = 0;
+ break;
+ case 'v':
+ db_level |= DB_BASIC | DB_VERBOSE;
+ break;
+ default:
+ OS (fatal, NILF,
+ _("unknown debug level specification '%s'"), p);
+ }
+
+ while (*(++p) != '\0')
+ if (*p == ',' || *p == ' ')
+ {
+ ++p;
+ break;
+ }
+
+ if (*p == '\0')
+ break;
+ }
+ }
+
+ if (db_level)
+ verify_flag = 1;
+
+ if (! db_level)
+ debug_flag = 0;
+}
+
+static void
+decode_output_sync_flags (void)
+{
+#ifdef NO_OUTPUT_SYNC
+ output_sync = OUTPUT_SYNC_NONE;
+#else
+ if (output_sync_option)
+ {
+ if (streq (output_sync_option, "none"))
+ output_sync = OUTPUT_SYNC_NONE;
+ else if (streq (output_sync_option, "line"))
+ output_sync = OUTPUT_SYNC_LINE;
+ else if (streq (output_sync_option, "target"))
+ output_sync = OUTPUT_SYNC_TARGET;
+ else if (streq (output_sync_option, "recurse"))
+ output_sync = OUTPUT_SYNC_RECURSE;
+ else
+ OS (fatal, NILF,
+ _("unknown output-sync type '%s'"), output_sync_option);
+ }
+
+ if (sync_mutex)
+ RECORD_SYNC_MUTEX (sync_mutex);
+#endif
+}
+
+#ifdef WINDOWS32
+
+#ifndef NO_OUTPUT_SYNC
+
+/* This is called from start_job_command when it detects that
+ output_sync option is in effect. The handle to the synchronization
+ mutex is passed, as a string, to sub-makes via the --sync-mutex
+ command-line argument. */
+void
+prepare_mutex_handle_string (sync_handle_t handle)
+{
+ if (!sync_mutex)
+ {
+ /* Prepare the mutex handle string for our children. */
+ /* 2 hex digits per byte + 2 characters for "0x" + null. */
+ sync_mutex = xmalloc ((2 * sizeof (sync_handle_t)) + 2 + 1);
+ sprintf (sync_mutex, "0x%Ix", handle);
+ define_makeflags (1, 0);
+ }
+}
+
+#endif /* NO_OUTPUT_SYNC */
+
+/*
+ * HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
+ * exception and print it to stderr instead.
+ *
+ * If ! DB_VERBOSE, just print a simple message and exit.
+ * If DB_VERBOSE, print a more verbose message.
+ * If compiled for DEBUG, let exception pass through to GUI so that
+ * debuggers can attach.
+ */
+LONG WINAPI
+handle_runtime_exceptions (struct _EXCEPTION_POINTERS *exinfo)
+{
+ PEXCEPTION_RECORD exrec = exinfo->ExceptionRecord;
+ LPSTR cmdline = GetCommandLine ();
+ LPSTR prg = strtok (cmdline, " ");
+ CHAR errmsg[1024];
+#ifdef USE_EVENT_LOG
+ HANDLE hEventSource;
+ LPTSTR lpszStrings[1];
+#endif
+
+ if (! ISDB (DB_VERBOSE))
+ {
+ sprintf (errmsg,
+ _("%s: Interrupt/Exception caught (code = 0x%lx, addr = 0x%p)\n"),
+ prg, exrec->ExceptionCode, exrec->ExceptionAddress);
+ fprintf (stderr, errmsg);
+ exit (255);
+ }
+
+ sprintf (errmsg,
+ _("\nUnhandled exception filter called from program %s\nExceptionCode = %lx\nExceptionFlags = %lx\nExceptionAddress = 0x%p\n"),
+ prg, exrec->ExceptionCode, exrec->ExceptionFlags,
+ exrec->ExceptionAddress);
+
+ if (exrec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION
+ && exrec->NumberParameters >= 2)
+ sprintf (&errmsg[strlen(errmsg)],
+ (exrec->ExceptionInformation[0]
+ ? _("Access violation: write operation at address 0x%p\n")
+ : _("Access violation: read operation at address 0x%p\n")),
+ (PVOID)exrec->ExceptionInformation[1]);
+
+ /* turn this on if we want to put stuff in the event log too */
+#ifdef USE_EVENT_LOG
+ hEventSource = RegisterEventSource (NULL, "GNU Make");
+ lpszStrings[0] = errmsg;
+
+ if (hEventSource != NULL)
+ {
+ ReportEvent (hEventSource, /* handle of event source */
+ EVENTLOG_ERROR_TYPE, /* event type */
+ 0, /* event category */
+ 0, /* event ID */
+ NULL, /* current user's SID */
+ 1, /* strings in lpszStrings */
+ 0, /* no bytes of raw data */
+ lpszStrings, /* array of error strings */
+ NULL); /* no raw data */
+
+ (VOID) DeregisterEventSource (hEventSource);
+ }
+#endif
+
+ /* Write the error to stderr too */
+ fprintf (stderr, errmsg);
+
+#ifdef DEBUG
+ return EXCEPTION_CONTINUE_SEARCH;
+#else
+ exit (255);
+ return (255); /* not reached */
+#endif
+}
+
+/*
+ * On WIN32 systems we don't have the luxury of a /bin directory that
+ * is mapped globally to every drive mounted to the system. Since make could
+ * be invoked from any drive, and we don't want to propagate /bin/sh
+ * to every single drive. Allow ourselves a chance to search for
+ * a value for default shell here (if the default path does not exist).
+ */
+
+int
+find_and_set_default_shell (const char *token)
+{
+ int sh_found = 0;
+ char *atoken = 0;
+ const char *search_token;
+ const char *tokend;
+ PATH_VAR(sh_path);
+ extern const char *default_shell;
+
+ if (!token)
+ search_token = default_shell;
+ else
+ search_token = atoken = xstrdup (token);
+
+ /* If the user explicitly requests the DOS cmd shell, obey that request.
+ However, make sure that's what they really want by requiring the value
+ of SHELL either equal, or have a final path element of, "cmd" or
+ "cmd.exe" case-insensitive. */
+ tokend = search_token + strlen (search_token) - 3;
+ if (((tokend == search_token
+ || (tokend > search_token
+ && (tokend[-1] == '/' || tokend[-1] == '\\')))
+ && !strcasecmp (tokend, "cmd"))
+ || ((tokend - 4 == search_token
+ || (tokend - 4 > search_token
+ && (tokend[-5] == '/' || tokend[-5] == '\\')))
+ && !strcasecmp (tokend - 4, "cmd.exe")))
+ {
+ batch_mode_shell = 1;
+ unixy_shell = 0;
+ sprintf (sh_path, "%s", search_token);
+ default_shell = xstrdup (w32ify (sh_path, 0));
+ DB (DB_VERBOSE, (_("find_and_set_shell() setting default_shell = %s\n"),
+ default_shell));
+ sh_found = 1;
+ }
+ else if (!no_default_sh_exe
+ && (token == NULL || !strcmp (search_token, default_shell)))
+ {
+ /* no new information, path already set or known */
+ sh_found = 1;
+ }
+ else if (_access (search_token, 0) == 0)
+ {
+ /* search token path was found */
+ sprintf (sh_path, "%s", search_token);
+ default_shell = xstrdup (w32ify (sh_path, 0));
+ DB (DB_VERBOSE, (_("find_and_set_shell() setting default_shell = %s\n"),
+ default_shell));
+ sh_found = 1;
+ }
+ else
+ {
+ char *p;
+ struct variable *v = lookup_variable (STRING_SIZE_TUPLE ("PATH"));
+
+ /* Search Path for shell */
+ if (v && v->value)
+ {
+ char *ep;
+
+ p = v->value;
+ ep = strchr (p, PATH_SEPARATOR_CHAR);
+
+ while (ep && *ep)
+ {
+ *ep = '\0';
+
+ sprintf (sh_path, "%s/%s", p, search_token);
+ if (_access (sh_path, 0) == 0)
+ {
+ default_shell = xstrdup (w32ify (sh_path, 0));
+ sh_found = 1;
+ *ep = PATH_SEPARATOR_CHAR;
+
+ /* terminate loop */
+ p += strlen (p);
+ }
+ else
+ {
+ *ep = PATH_SEPARATOR_CHAR;
+ p = ++ep;
+ }
+
+ ep = strchr (p, PATH_SEPARATOR_CHAR);
+ }
+
+ /* be sure to check last element of Path */
+ if (p && *p)
+ {
+ sprintf (sh_path, "%s/%s", p, search_token);
+ if (_access (sh_path, 0) == 0)
+ {
+ default_shell = xstrdup (w32ify (sh_path, 0));
+ sh_found = 1;
+ }
+ }
+
+ if (sh_found)
+ DB (DB_VERBOSE,
+ (_("find_and_set_shell() path search set default_shell = %s\n"),
+ default_shell));
+ }
+ }
+
+ /* naive test */
+ if (!unixy_shell && sh_found
+ && (strstr (default_shell, "sh") || strstr (default_shell, "SH")))
+ {
+ unixy_shell = 1;
+ batch_mode_shell = 0;
+ }
+
+#ifdef BATCH_MODE_ONLY_SHELL
+ batch_mode_shell = 1;
+#endif
+
+ free (atoken);
+
+ return (sh_found);
+}
+#endif /* WINDOWS32 */
+
+#ifdef __MSDOS__
+static void
+msdos_return_to_initial_directory (void)
+{
+ if (directory_before_chdir)
+ chdir (directory_before_chdir);
+}
+#endif /* __MSDOS__ */
+
+static void
+reset_jobserver (void)
+{
+ jobserver_clear ();
+ free (jobserver_auth);
+ jobserver_auth = NULL;
+}
+
+#ifdef _AMIGA
+int
+main (int argc, char **argv)
+#else
+int
+main (int argc, char **argv, char **envp)
+#endif
+{
+ static char *stdin_nm = 0;
+ int makefile_status = MAKE_SUCCESS;
+ struct goaldep *read_files;
+ PATH_VAR (current_directory);
+ unsigned int restarts = 0;
+ unsigned int syncing = 0;
+ int argv_slots;
+#ifdef WINDOWS32
+ const char *unix_path = NULL;
+ const char *windows32_path = NULL;
+
+ SetUnhandledExceptionFilter (handle_runtime_exceptions);
+
+ /* start off assuming we have no shell */
+ unixy_shell = 0;
+ no_default_sh_exe = 1;
+#endif
+
+ output_init (&make_sync);
+
+ initialize_stopchar_map();
+
+#ifdef SET_STACK_SIZE
+ /* Get rid of any avoidable limit on stack size. */
+ {
+ struct rlimit rlim;
+
+ /* Set the stack limit huge so that alloca does not fail. */
+ if (getrlimit (RLIMIT_STACK, &rlim) == 0
+ && rlim.rlim_cur > 0 && rlim.rlim_cur < rlim.rlim_max)
+ {
+ stack_limit = rlim;
+ rlim.rlim_cur = rlim.rlim_max;
+ setrlimit (RLIMIT_STACK, &rlim);
+ }
+ else
+ stack_limit.rlim_cur = 0;
+ }
+#endif
+
+ /* Needed for OS/2 */
+ initialize_main (&argc, &argv);
+
+#ifdef MAKE_MAINTAINER_MODE
+ /* In maintainer mode we always enable verification. */
+ verify_flag = 1;
+#endif
+
+#if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
+ /* Request the most powerful version of 'system', to
+ make up for the dumb default shell. */
+ __system_flags = (__system_redirect
+ | __system_use_shell
+ | __system_allow_multiple_cmds
+ | __system_allow_long_cmds
+ | __system_handle_null_commands
+ | __system_emulate_chdir);
+
+#endif
+
+ /* Set up gettext/internationalization support. */
+ setlocale (LC_ALL, "");
+ /* The cast to void shuts up compiler warnings on systems that
+ disable NLS. */
+ (void)bindtextdomain (PACKAGE, LOCALEDIR);
+ (void)textdomain (PACKAGE);
+
+#ifdef POSIX
+ sigemptyset (&fatal_signal_set);
+#define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
+#else
+#ifdef HAVE_SIGSETMASK
+ fatal_signal_mask = 0;
+#define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
+#else
+#define ADD_SIG(sig) (void)sig
+#endif
+#endif
+
+#define FATAL_SIG(sig) \
+ if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \
+ bsd_signal (sig, SIG_IGN); \
+ else \
+ ADD_SIG (sig);
+
+#ifdef SIGHUP
+ FATAL_SIG (SIGHUP);
+#endif
+#ifdef SIGQUIT
+ FATAL_SIG (SIGQUIT);
+#endif
+ FATAL_SIG (SIGINT);
+ FATAL_SIG (SIGTERM);
+
+#ifdef __MSDOS__
+ /* Windows 9X delivers FP exceptions in child programs to their
+ parent! We don't want Make to die when a child divides by zero,
+ so we work around that lossage by catching SIGFPE. */
+ FATAL_SIG (SIGFPE);
+#endif
+
+#ifdef SIGDANGER
+ FATAL_SIG (SIGDANGER);
+#endif
+#ifdef SIGXCPU
+ FATAL_SIG (SIGXCPU);
+#endif
+#ifdef SIGXFSZ
+ FATAL_SIG (SIGXFSZ);
+#endif
+
+#undef FATAL_SIG
+
+ /* Do not ignore the child-death signal. This must be done before
+ any children could possibly be created; otherwise, the wait
+ functions won't work on systems with the SVR4 ECHILD brain
+ damage, if our invoker is ignoring this signal. */
+
+#ifdef HAVE_WAIT_NOHANG
+# if defined SIGCHLD
+ (void) bsd_signal (SIGCHLD, SIG_DFL);
+# endif
+# if defined SIGCLD && SIGCLD != SIGCHLD
+ (void) bsd_signal (SIGCLD, SIG_DFL);
+# endif
+#endif
+
+ output_init (NULL);
+
+ /* Figure out where this program lives. */
+
+ if (argv[0] == 0)
+ argv[0] = (char *)"";
+ if (argv[0][0] == '\0')
+ program = "make";
+ else
+ {
+ program = strrchr (argv[0], '/');
+#if defined(__MSDOS__) || defined(__EMX__)
+ if (program == 0)
+ program = strrchr (argv[0], '\\');
+ else
+ {
+ /* Some weird environments might pass us argv[0] with
+ both kinds of slashes; we must find the rightmost. */
+ char *p = strrchr (argv[0], '\\');
+ if (p && p > program)
+ program = p;
+ }
+ if (program == 0 && argv[0][1] == ':')
+ program = argv[0] + 1;
+#endif
+#ifdef WINDOWS32
+ if (program == 0)
+ {
+ /* Extract program from full path */
+ program = strrchr (argv[0], '\\');
+ if (program)
+ {
+ int argv0_len = strlen (program);
+ if (argv0_len > 4 && streq (&program[argv0_len - 4], ".exe"))
+ /* Remove .exe extension */
+ program[argv0_len - 4] = '\0';
+ }
+ }
+#endif
+#ifdef VMS
+ set_program_name (argv[0]);
+ program = program_name;
+ {
+ const char *shell;
+ char pwdbuf[256];
+ char *pwd;
+ shell = getenv ("SHELL");
+ if (shell != NULL)
+ vms_gnv_shell = 1;
+
+ /* Need to know if CRTL set to report UNIX paths. Use getcwd as
+ it works on all versions of VMS. */
+ pwd = getcwd(pwdbuf, 256);
+ if (pwd[0] == '/')
+ vms_report_unix_paths = 1;
+
+ vms_use_mcr_command = get_vms_env_flag ("GNV$MAKE_USE_MCR", 0);
+
+ vms_always_use_cmd_file = get_vms_env_flag ("GNV$MAKE_USE_CMD_FILE", 0);
+
+ /* Legacy behavior is on VMS is older behavior that needed to be
+ changed to be compatible with standard make behavior.
+ For now only completely disable when running under a Bash shell.
+ TODO: Update VMS built in recipes and macros to not need this
+ behavior, at which time the default may change. */
+ vms_legacy_behavior = get_vms_env_flag ("GNV$MAKE_OLD_VMS",
+ !vms_gnv_shell);
+
+ /* VMS was changed to use a comma separator in the past, but that is
+ incompatible with built in functions that expect space separated
+ lists. Allow this to be selectively turned off. */
+ vms_comma_separator = get_vms_env_flag ("GNV$MAKE_COMMA",
+ vms_legacy_behavior);
+
+ /* Some Posix shell syntax options are incompatible with VMS syntax.
+ VMS requires double quotes for strings and escapes quotes
+ differently. When this option is active, VMS will try
+ to simulate Posix shell simulations instead of using
+ VMS DCL behavior. */
+ vms_unix_simulation = get_vms_env_flag ("GNV$MAKE_SHELL_SIM",
+ !vms_legacy_behavior);
+
+ }
+ if (need_vms_symbol () && !vms_use_mcr_command)
+ create_foreign_command (program_name, argv[0]);
+#else
+ if (program == 0)
+ program = argv[0];
+ else
+ ++program;
+#endif
+ }
+
+ /* Set up to access user data (files). */
+ user_access ();
+
+ initialize_global_hash_tables ();
+
+ /* Figure out where we are. */
+
+#ifdef WINDOWS32
+ if (getcwd_fs (current_directory, GET_PATH_MAX) == 0)
+#else
+ if (getcwd (current_directory, GET_PATH_MAX) == 0)
+#endif
+ {
+#ifdef HAVE_GETCWD
+ perror_with_name ("getcwd", "");
+#else
+ OS (error, NILF, "getwd: %s", current_directory);
+#endif
+ current_directory[0] = '\0';
+ directory_before_chdir = 0;
+ }
+ else
+ directory_before_chdir = xstrdup (current_directory);
+
+#ifdef __MSDOS__
+ /* Make sure we will return to the initial directory, come what may. */
+ atexit (msdos_return_to_initial_directory);
+#endif
+
+ /* Initialize the special variables. */
+ define_variable_cname (".VARIABLES", "", o_default, 0)->special = 1;
+ /* define_variable_cname (".TARGETS", "", o_default, 0)->special = 1; */
+ define_variable_cname (".RECIPEPREFIX", "", o_default, 0)->special = 1;
+ define_variable_cname (".SHELLFLAGS", "-c", o_default, 0);
+ define_variable_cname (".LOADED", "", o_default, 0);
+
+ /* Set up .FEATURES
+ Use a separate variable because define_variable_cname() is a macro and
+ some compilers (MSVC) don't like conditionals in macros. */
+ {
+ const char *features = "target-specific order-only second-expansion"
+ " else-if shortest-stem undefine oneshell"
+#ifndef NO_ARCHIVES
+ " archives"
+#endif
+#ifdef MAKE_JOBSERVER
+ " jobserver"
+#endif
+#ifndef NO_OUTPUT_SYNC
+ " output-sync"
+#endif
+#ifdef MAKE_SYMLINKS
+ " check-symlink"
+#endif
+#ifdef HAVE_GUILE
+ " guile"
+#endif
+#ifdef MAKE_LOAD
+ " load"
+#endif
+ ;
+
+ define_variable_cname (".FEATURES", features, o_default, 0);
+ }
+
+ /* Configure GNU Guile support */
+ guile_gmake_setup (NILF);
+
+ /* Read in variables from the environment. It is important that this be
+ done before $(MAKE) is figured out so its definitions will not be
+ from the environment. */
+
+#ifndef _AMIGA
+ {
+ unsigned int i;
+
+ for (i = 0; envp[i] != 0; ++i)
+ {
+ struct variable *v;
+ const char *ep = envp[i];
+ /* By default, export all variables culled from the environment. */
+ enum variable_export export = v_export;
+ unsigned int len;
+
+ while (! STOP_SET (*ep, MAP_EQUALS))
+ ++ep;
+
+ /* If there's no equals sign it's a malformed environment. Ignore. */
+ if (*ep == '\0')
+ continue;
+
+#ifdef WINDOWS32
+ if (!unix_path && strneq (envp[i], "PATH=", 5))
+ unix_path = ep+1;
+ else if (!strnicmp (envp[i], "Path=", 5))
+ {
+ if (!windows32_path)
+ windows32_path = ep+1;
+ /* PATH gets defined after the loop exits. */
+ continue;
+ }
+#endif
+
+ /* Length of the variable name, and skip the '='. */
+ len = ep++ - envp[i];
+
+ /* If this is MAKE_RESTARTS, check to see if the "already printed
+ the enter statement" flag is set. */
+ if (len == 13 && strneq (envp[i], "MAKE_RESTARTS", 13))
+ {
+ if (*ep == '-')
+ {
+ OUTPUT_TRACED ();
+ ++ep;
+ }
+ restarts = (unsigned int) atoi (ep);
+ export = v_noexport;
+ }
+
+ v = define_variable (envp[i], len, ep, o_env, 1);
+
+ /* POSIX says the value of SHELL set in the makefile won't change the
+ value of SHELL given to subprocesses. */
+ if (streq (v->name, "SHELL"))
+ {
+#ifndef __MSDOS__
+ export = v_noexport;
+#endif
+ shell_var.name = xstrdup ("SHELL");
+ shell_var.length = 5;
+ shell_var.value = xstrdup (ep);
+ }
+
+ v->export = export;
+ }
+ }
+#ifdef WINDOWS32
+ /* If we didn't find a correctly spelled PATH we define PATH as
+ * either the first misspelled value or an empty string
+ */
+ if (!unix_path)
+ define_variable_cname ("PATH", windows32_path ? windows32_path : "",
+ o_env, 1)->export = v_export;
+#endif
+#else /* For Amiga, read the ENV: device, ignoring all dirs */
+ {
+ BPTR env, file, old;
+ char buffer[1024];
+ int len;
+ __aligned struct FileInfoBlock fib;
+
+ env = Lock ("ENV:", ACCESS_READ);
+ if (env)
+ {
+ old = CurrentDir (DupLock (env));
+ Examine (env, &fib);
+
+ while (ExNext (env, &fib))
+ {
+ if (fib.fib_DirEntryType < 0) /* File */
+ {
+ /* Define an empty variable. It will be filled in
+ variable_lookup(). Makes startup quite a bit faster. */
+ define_variable (fib.fib_FileName,
+ strlen (fib.fib_FileName),
+ "", o_env, 1)->export = v_export;
+ }
+ }
+ UnLock (env);
+ UnLock (CurrentDir (old));
+ }
+ }
+#endif
+
+ /* Decode the switches. */
+ decode_env_switches (STRING_SIZE_TUPLE ("GNUMAKEFLAGS"));
+
+ /* Clear GNUMAKEFLAGS to avoid duplication. */
+ define_variable_cname ("GNUMAKEFLAGS", "", o_env, 0);
+
+ decode_env_switches (STRING_SIZE_TUPLE ("MAKEFLAGS"));
+
+#if 0
+ /* People write things like:
+ MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
+ and we set the -p, -i and -e switches. Doesn't seem quite right. */
+ decode_env_switches (STRING_SIZE_TUPLE ("MFLAGS"));
+#endif
+
+ /* In output sync mode we need to sync any output generated by reading the
+ makefiles, such as in $(info ...) or stderr from $(shell ...) etc. */
+
+ syncing = make_sync.syncout = (output_sync == OUTPUT_SYNC_LINE
+ || output_sync == OUTPUT_SYNC_TARGET);
+ OUTPUT_SET (&make_sync);
+
+ /* Remember the job slots set through the environment vs. command line. */
+ {
+ int env_slots = arg_job_slots;
+ arg_job_slots = INVALID_JOB_SLOTS;
+
+ decode_switches (argc, (const char **)argv, 0);
+ argv_slots = arg_job_slots;
+
+ if (arg_job_slots == INVALID_JOB_SLOTS)
+ arg_job_slots = env_slots;
+ }
+
+ /* Set a variable specifying whether stdout/stdin is hooked to a TTY. */
+#ifdef HAVE_ISATTY
+ if (isatty (fileno (stdout)))
+ if (! lookup_variable (STRING_SIZE_TUPLE ("MAKE_TERMOUT")))
+ {
+ const char *tty = TTYNAME (fileno (stdout));
+ define_variable_cname ("MAKE_TERMOUT", tty ? tty : DEFAULT_TTYNAME,
+ o_default, 0)->export = v_export;
+ }
+ if (isatty (fileno (stderr)))
+ if (! lookup_variable (STRING_SIZE_TUPLE ("MAKE_TERMERR")))
+ {
+ const char *tty = TTYNAME (fileno (stderr));
+ define_variable_cname ("MAKE_TERMERR", tty ? tty : DEFAULT_TTYNAME,
+ o_default, 0)->export = v_export;
+ }
+#endif
+
+ /* Reset in case the switches changed our minds. */
+ syncing = (output_sync == OUTPUT_SYNC_LINE
+ || output_sync == OUTPUT_SYNC_TARGET);
+
+ if (make_sync.syncout && ! syncing)
+ output_close (&make_sync);
+
+ make_sync.syncout = syncing;
+ OUTPUT_SET (&make_sync);
+
+ /* Figure out the level of recursion. */
+ {
+ struct variable *v = lookup_variable (STRING_SIZE_TUPLE (MAKELEVEL_NAME));
+ if (v && v->value[0] != '\0' && v->value[0] != '-')
+ makelevel = (unsigned int) atoi (v->value);
+ else
+ makelevel = 0;
+ }
+
+#ifdef WINDOWS32
+ if (suspend_flag)
+ {
+ fprintf (stderr, "%s (pid = %ld)\n", argv[0], GetCurrentProcessId ());
+ fprintf (stderr, _("%s is suspending for 30 seconds..."), argv[0]);
+ Sleep (30 * 1000);
+ fprintf (stderr, _("done sleep(30). Continuing.\n"));
+ }
+#endif
+
+ /* Set always_make_flag if -B was given and we've not restarted already. */
+ always_make_flag = always_make_set && (restarts == 0);
+
+ /* Print version information, and exit. */
+ if (print_version_flag)
+ {
+ print_version ();
+ die (MAKE_SUCCESS);
+ }
+
+ if (ISDB (DB_BASIC))
+ print_version ();
+
+#ifndef VMS
+ /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
+ (If it is a relative pathname with a slash, prepend our directory name
+ so the result will run the same program regardless of the current dir.
+ If it is a name with no slash, we can only hope that PATH did not
+ find it in the current directory.) */
+#ifdef WINDOWS32
+ /*
+ * Convert from backslashes to forward slashes for
+ * programs like sh which don't like them. Shouldn't
+ * matter if the path is one way or the other for
+ * CreateProcess().
+ */
+ if (strpbrk (argv[0], "/:\\") || strstr (argv[0], "..")
+ || strneq (argv[0], "//", 2))
+ argv[0] = xstrdup (w32ify (argv[0], 1));
+#else /* WINDOWS32 */
+#if defined (__MSDOS__) || defined (__EMX__)
+ if (strchr (argv[0], '\\'))
+ {
+ char *p;
+
+ argv[0] = xstrdup (argv[0]);
+ for (p = argv[0]; *p; p++)
+ if (*p == '\\')
+ *p = '/';
+ }
+ /* If argv[0] is not in absolute form, prepend the current
+ directory. This can happen when Make is invoked by another DJGPP
+ program that uses a non-absolute name. */
+ if (current_directory[0] != '\0'
+ && argv[0] != 0
+ && (argv[0][0] != '/' && (argv[0][0] == '\0' || argv[0][1] != ':'))
+# ifdef __EMX__
+ /* do not prepend cwd if argv[0] contains no '/', e.g. "make" */
+ && (strchr (argv[0], '/') != 0 || strchr (argv[0], '\\') != 0)
+# endif
+ )
+ argv[0] = xstrdup (concat (3, current_directory, "/", argv[0]));
+#else /* !__MSDOS__ */
+ if (current_directory[0] != '\0'
+ && argv[0] != 0 && argv[0][0] != '/' && strchr (argv[0], '/') != 0
+#ifdef HAVE_DOS_PATHS
+ && (argv[0][0] != '\\' && (!argv[0][0] || argv[0][1] != ':'))
+ && strchr (argv[0], '\\') != 0
+#endif
+ )
+ argv[0] = xstrdup (concat (3, current_directory, "/", argv[0]));
+#endif /* !__MSDOS__ */
+#endif /* WINDOWS32 */
+#endif
+
+ /* We may move, but until we do, here we are. */
+ starting_directory = current_directory;
+
+ /* Set up the job_slots value and the jobserver. This can't be usefully set
+ in the makefile, and we want to verify the authorization is valid before
+ make has a chance to start using it for something else. */
+
+ if (jobserver_auth)
+ {
+ if (argv_slots == INVALID_JOB_SLOTS)
+ {
+ if (jobserver_parse_auth (jobserver_auth))
+ {
+ /* Success! Use the jobserver. */
+ job_slots = 0;
+ goto job_setup_complete;
+ }
+
+ O (error, NILF, _("warning: jobserver unavailable: using -j1. Add '+' to parent make rule."));
+ arg_job_slots = 1;
+ }
+
+ /* The user provided a -j setting on the command line: use it. */
+ else if (!restarts)
+ /* If restarts is >0 we already printed this message. */
+ O (error, NILF,
+ _("warning: -jN forced in submake: disabling jobserver mode."));
+
+ /* We failed to use our parent's jobserver. */
+ reset_jobserver ();
+ job_slots = (unsigned int)arg_job_slots;
+ }
+ else if (arg_job_slots == INVALID_JOB_SLOTS)
+ /* The default is one job at a time. */
+ job_slots = 1;
+ else
+ /* Use whatever was provided. */
+ job_slots = (unsigned int)arg_job_slots;
+
+ job_setup_complete:
+
+ /* The extra indirection through $(MAKE_COMMAND) is done
+ for hysterical raisins. */
+
+#ifdef VMS
+ if (vms_use_mcr_command)
+ define_variable_cname ("MAKE_COMMAND", vms_command (argv[0]), o_default, 0);
+ else
+ define_variable_cname ("MAKE_COMMAND", program, o_default, 0);
+#else
+ define_variable_cname ("MAKE_COMMAND", argv[0], o_default, 0);
+#endif
+ define_variable_cname ("MAKE", "$(MAKE_COMMAND)", o_default, 1);
+
+ if (command_variables != 0)
+ {
+ struct command_variable *cv;
+ struct variable *v;
+ unsigned int len = 0;
+ char *value, *p;
+
+ /* Figure out how much space will be taken up by the command-line
+ variable definitions. */
+ for (cv = command_variables; cv != 0; cv = cv->next)
+ {
+ v = cv->variable;
+ len += 2 * strlen (v->name);
+ if (! v->recursive)
+ ++len;
+ ++len;
+ len += 2 * strlen (v->value);
+ ++len;
+ }
+
+ /* Now allocate a buffer big enough and fill it. */
+ p = value = alloca (len);
+ for (cv = command_variables; cv != 0; cv = cv->next)
+ {
+ v = cv->variable;
+ p = quote_for_env (p, v->name);
+ if (! v->recursive)
+ *p++ = ':';
+ *p++ = '=';
+ p = quote_for_env (p, v->value);
+ *p++ = ' ';
+ }
+ p[-1] = '\0'; /* Kill the final space and terminate. */
+
+ /* Define an unchangeable variable with a name that no POSIX.2
+ makefile could validly use for its own variable. */
+ define_variable_cname ("-*-command-variables-*-", value, o_automatic, 0);
+
+ /* Define the variable; this will not override any user definition.
+ Normally a reference to this variable is written into the value of
+ MAKEFLAGS, allowing the user to override this value to affect the
+ exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
+ allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
+ a reference to this hidden variable is written instead. */
+ define_variable_cname ("MAKEOVERRIDES", "${-*-command-variables-*-}",
+ o_env, 1);
+#ifdef VMS
+ vms_export_dcl_symbol ("MAKEOVERRIDES", "${-*-command-variables-*-}");
+#endif
+ }
+
+ /* If there were -C flags, move ourselves about. */
+ if (directories != 0)
+ {
+ unsigned int i;
+ for (i = 0; directories->list[i] != 0; ++i)
+ {
+ const char *dir = directories->list[i];
+#ifdef WINDOWS32
+ /* WINDOWS32 chdir() doesn't work if the directory has a trailing '/'
+ But allow -C/ just in case someone wants that. */
+ {
+ char *p = (char *)dir + strlen (dir) - 1;
+ while (p > dir && (p[0] == '/' || p[0] == '\\'))
+ --p;
+ p[1] = '\0';
+ }
+#endif
+ if (chdir (dir) < 0)
+ pfatal_with_name (dir);
+ }
+ }
+
+#ifdef WINDOWS32
+ /*
+ * THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
+ * TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
+ *
+ * The functions in dir.c can incorrectly cache information for "."
+ * before we have changed directory and this can cause file
+ * lookups to fail because the current directory (.) was pointing
+ * at the wrong place when it was first evaluated.
+ */
+ no_default_sh_exe = !find_and_set_default_shell (NULL);
+#endif /* WINDOWS32 */
+
+ /* Except under -s, always do -w in sub-makes and under -C. */
+ if (!silent_flag && (directories != 0 || makelevel > 0))
+ print_directory_flag = 1;
+
+ /* Let the user disable that with --no-print-directory. */
+ if (inhibit_print_directory_flag)
+ print_directory_flag = 0;
+
+ /* If -R was given, set -r too (doesn't make sense otherwise!) */
+ if (no_builtin_variables_flag)
+ no_builtin_rules_flag = 1;
+
+ /* Construct the list of include directories to search. */
+
+ construct_include_path (include_directories == 0
+ ? 0 : include_directories->list);
+
+ /* If we chdir'ed, figure out where we are now. */
+ if (directories)
+ {
+#ifdef WINDOWS32
+ if (getcwd_fs (current_directory, GET_PATH_MAX) == 0)
+#else
+ if (getcwd (current_directory, GET_PATH_MAX) == 0)
+#endif
+ {
+#ifdef HAVE_GETCWD
+ perror_with_name ("getcwd", "");
+#else
+ OS (error, NILF, "getwd: %s", current_directory);
+#endif
+ starting_directory = 0;
+ }
+ else
+ starting_directory = current_directory;
+ }
+
+ define_variable_cname ("CURDIR", current_directory, o_file, 0);
+
+ /* Read any stdin makefiles into temporary files. */
+
+ if (makefiles != 0)
+ {
+ unsigned int i;
+ for (i = 0; i < makefiles->idx; ++i)
+ if (makefiles->list[i][0] == '-' && makefiles->list[i][1] == '\0')
+ {
+ /* This makefile is standard input. Since we may re-exec
+ and thus re-read the makefiles, we read standard input
+ into a temporary file and read from that. */
+ FILE *outfile;
+ char *template;
+ const char *tmpdir;
+
+ if (stdin_nm)
+ O (fatal, NILF,
+ _("Makefile from standard input specified twice."));
+
+#ifdef VMS
+# define DEFAULT_TMPDIR "/sys$scratch/"
+#else
+# ifdef P_tmpdir
+# define DEFAULT_TMPDIR P_tmpdir
+# else
+# define DEFAULT_TMPDIR "/tmp"
+# endif
+#endif
+#define DEFAULT_TMPFILE "GmXXXXXX"
+
+ if (((tmpdir = getenv ("TMPDIR")) == NULL || *tmpdir == '\0')
+#if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
+ /* These are also used commonly on these platforms. */
+ && ((tmpdir = getenv ("TEMP")) == NULL || *tmpdir == '\0')
+ && ((tmpdir = getenv ("TMP")) == NULL || *tmpdir == '\0')
+#endif
+ )
+ tmpdir = DEFAULT_TMPDIR;
+
+ template = alloca (strlen (tmpdir) + CSTRLEN (DEFAULT_TMPFILE) + 2);
+ strcpy (template, tmpdir);
+
+#ifdef HAVE_DOS_PATHS
+ if (strchr ("/\\", template[strlen (template) - 1]) == NULL)
+ strcat (template, "/");
+#else
+# ifndef VMS
+ if (template[strlen (template) - 1] != '/')
+ strcat (template, "/");
+# endif /* !VMS */
+#endif /* !HAVE_DOS_PATHS */
+
+ strcat (template, DEFAULT_TMPFILE);
+ outfile = output_tmpfile (&stdin_nm, template);
+ if (outfile == 0)
+ pfatal_with_name (_("fopen (temporary file)"));
+ while (!feof (stdin) && ! ferror (stdin))
+ {
+ char buf[2048];
+ unsigned int n = fread (buf, 1, sizeof (buf), stdin);
+ if (n > 0 && fwrite (buf, 1, n, outfile) != n)
+ pfatal_with_name (_("fwrite (temporary file)"));
+ }
+ fclose (outfile);
+
+ /* Replace the name that read_all_makefiles will
+ see with the name of the temporary file. */
+ makefiles->list[i] = strcache_add (stdin_nm);
+
+ /* Make sure the temporary file will not be remade. */
+ {
+ struct file *f = enter_file (strcache_add (stdin_nm));
+ f->updated = 1;
+ f->update_status = us_success;
+ f->command_state = cs_finished;
+ /* Can't be intermediate, or it'll be removed too early for
+ make re-exec. */
+ f->intermediate = 0;
+ f->dontcare = 0;
+ }
+ }
+ }
+
+#ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */
+#if !defined(HAVE_WAIT_NOHANG) || defined(MAKE_JOBSERVER)
+ /* Set up to handle children dying. This must be done before
+ reading in the makefiles so that 'shell' function calls will work.
+
+ If we don't have a hanging wait we have to fall back to old, broken
+ functionality here and rely on the signal handler and counting
+ children.
+
+ If we're using the jobs pipe we need a signal handler so that SIGCHLD is
+ not ignored; we need it to interrupt the read(2) of the jobserver pipe if
+ we're waiting for a token.
+
+ If none of these are true, we don't need a signal handler at all. */
+ {
+# if defined SIGCHLD
+ bsd_signal (SIGCHLD, child_handler);
+# endif
+# if defined SIGCLD && SIGCLD != SIGCHLD
+ bsd_signal (SIGCLD, child_handler);
+# endif
+ }
+
+#ifdef HAVE_PSELECT
+ /* If we have pselect() then we need to block SIGCHLD so it's deferred. */
+ {
+ sigset_t block;
+ sigemptyset (&block);
+ sigaddset (&block, SIGCHLD);
+ if (sigprocmask (SIG_SETMASK, &block, NULL) < 0)
+ pfatal_with_name ("sigprocmask(SIG_SETMASK, SIGCHLD)");
+ }
+#endif
+
+#endif
+#endif
+
+ /* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
+#ifdef SIGUSR1
+ bsd_signal (SIGUSR1, debug_signal_handler);
+#endif
+
+ /* Define the initial list of suffixes for old-style rules. */
+ set_default_suffixes ();
+
+ /* Define the file rules for the built-in suffix rules. These will later
+ be converted into pattern rules. We used to do this in
+ install_default_implicit_rules, but since that happens after reading
+ makefiles, it results in the built-in pattern rules taking precedence
+ over makefile-specified suffix rules, which is wrong. */
+ install_default_suffix_rules ();
+
+ /* Define some internal and special variables. */
+ define_automatic_variables ();
+
+ /* Set up the MAKEFLAGS and MFLAGS variables for makefiles to see.
+ Initialize it to be exported but allow the makefile to reset it. */
+ define_makeflags (0, 0)->export = v_export;
+
+ /* Define the default variables. */
+ define_default_variables ();
+
+ default_file = enter_file (strcache_add (".DEFAULT"));
+
+ default_goal_var = define_variable_cname (".DEFAULT_GOAL", "", o_file, 0);
+
+ /* Evaluate all strings provided with --eval.
+ Also set up the $(-*-eval-flags-*-) variable. */
+
+ if (eval_strings)
+ {
+ char *p, *value;
+ unsigned int i;
+ unsigned int len = (CSTRLEN ("--eval=") + 1) * eval_strings->idx;
+
+ for (i = 0; i < eval_strings->idx; ++i)
+ {
+ p = xstrdup (eval_strings->list[i]);
+ len += 2 * strlen (p);
+ eval_buffer (p, NULL);
+ free (p);
+ }
+
+ p = value = alloca (len);
+ for (i = 0; i < eval_strings->idx; ++i)
+ {
+ strcpy (p, "--eval=");
+ p += CSTRLEN ("--eval=");
+ p = quote_for_env (p, eval_strings->list[i]);
+ *(p++) = ' ';
+ }
+ p[-1] = '\0';
+
+ define_variable_cname ("-*-eval-flags-*-", value, o_automatic, 0);
+ }
+
+ /* Read all the makefiles. */
+
+ read_files = read_all_makefiles (makefiles == 0 ? 0 : makefiles->list);
+
+#ifdef WINDOWS32
+ /* look one last time after reading all Makefiles */
+ if (no_default_sh_exe)
+ no_default_sh_exe = !find_and_set_default_shell (NULL);
+#endif /* WINDOWS32 */
+
+#if defined (__MSDOS__) || defined (__EMX__) || defined (VMS)
+ /* We need to know what kind of shell we will be using. */
+ {
+ extern int _is_unixy_shell (const char *_path);
+ struct variable *shv = lookup_variable (STRING_SIZE_TUPLE ("SHELL"));
+ extern int unixy_shell;
+ extern const char *default_shell;
+
+ if (shv && *shv->value)
+ {
+ char *shell_path = recursively_expand (shv);
+
+ if (shell_path && _is_unixy_shell (shell_path))
+ unixy_shell = 1;
+ else
+ unixy_shell = 0;
+ if (shell_path)
+ default_shell = shell_path;
+ }
+ }
+#endif /* __MSDOS__ || __EMX__ */
+
+ {
+ int old_builtin_rules_flag = no_builtin_rules_flag;
+ int old_builtin_variables_flag = no_builtin_variables_flag;
+
+ /* Decode switches again, for variables set by the makefile. */
+ decode_env_switches (STRING_SIZE_TUPLE ("GNUMAKEFLAGS"));
+
+ /* Clear GNUMAKEFLAGS to avoid duplication. */
+ define_variable_cname ("GNUMAKEFLAGS", "", o_override, 0);
+
+ decode_env_switches (STRING_SIZE_TUPLE ("MAKEFLAGS"));
+#if 0
+ decode_env_switches (STRING_SIZE_TUPLE ("MFLAGS"));
+#endif
+
+ /* Reset in case the switches changed our mind. */
+ syncing = (output_sync == OUTPUT_SYNC_LINE
+ || output_sync == OUTPUT_SYNC_TARGET);
+
+ if (make_sync.syncout && ! syncing)
+ output_close (&make_sync);
+
+ make_sync.syncout = syncing;
+ OUTPUT_SET (&make_sync);
+
+ /* If we've disabled builtin rules, get rid of them. */
+ if (no_builtin_rules_flag && ! old_builtin_rules_flag)
+ {
+ if (suffix_file->builtin)
+ {
+ free_dep_chain (suffix_file->deps);
+ suffix_file->deps = 0;
+ }
+ define_variable_cname ("SUFFIXES", "", o_default, 0);
+ }
+
+ /* If we've disabled builtin variables, get rid of them. */
+ if (no_builtin_variables_flag && ! old_builtin_variables_flag)
+ undefine_default_variables ();
+ }
+
+#if defined (__MSDOS__) || defined (__EMX__) || defined (VMS)
+ if (arg_job_slots != 1
+# ifdef __EMX__
+ && _osmode != OS2_MODE /* turn off -j if we are in DOS mode */
+# endif
+ )
+ {
+ O (error, NILF,
+ _("Parallel jobs (-j) are not supported on this platform."));
+ O (error, NILF, _("Resetting to single job (-j1) mode."));
+ arg_job_slots = job_slots = 1;
+ }
+#endif
+
+ /* If we have >1 slot at this point, then we're a top-level make.
+ Set up the jobserver.
+
+ Every make assumes that it always has one job it can run. For the
+ submakes it's the token they were given by their parent. For the top
+ make, we just subtract one from the number the user wants. */
+
+ if (job_slots > 1 && jobserver_setup (job_slots - 1))
+ {
+ /* Fill in the jobserver_auth for our children. */
+ jobserver_auth = jobserver_get_auth ();
+
+ if (jobserver_auth)
+ {
+ /* We're using the jobserver so set job_slots to 0. */
+ master_job_slots = job_slots;
+ job_slots = 0;
+ }
+ }
+
+ /* If we're not using parallel jobs, then we don't need output sync.
+ This is so people can enable output sync in GNUMAKEFLAGS or similar, but
+ not have it take effect unless parallel builds are enabled. */
+ if (syncing && job_slots == 1)
+ {
+ OUTPUT_UNSET ();
+ output_close (&make_sync);
+ syncing = 0;
+ output_sync = OUTPUT_SYNC_NONE;
+ }
+
+#ifndef MAKE_SYMLINKS
+ if (check_symlink_flag)
+ {
+ O (error, NILF, _("Symbolic links not supported: disabling -L."));
+ check_symlink_flag = 0;
+ }
+#endif
+
+ /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
+
+ define_makeflags (1, 0);
+
+ /* Make each 'struct goaldep' point at the 'struct file' for the file
+ depended on. Also do magic for special targets. */
+
+ snap_deps ();
+
+ /* Convert old-style suffix rules to pattern rules. It is important to
+ do this before installing the built-in pattern rules below, so that
+ makefile-specified suffix rules take precedence over built-in pattern
+ rules. */
+
+ convert_to_pattern ();
+
+ /* Install the default implicit pattern rules.
+ This used to be done before reading the makefiles.
+ But in that case, built-in pattern rules were in the chain
+ before user-defined ones, so they matched first. */
+
+ install_default_implicit_rules ();
+
+ /* Compute implicit rule limits. */
+
+ count_implicit_rule_limits ();
+
+ /* Construct the listings of directories in VPATH lists. */
+
+ build_vpath_lists ();
+
+ /* Mark files given with -o flags as very old and as having been updated
+ already, and files given with -W flags as brand new (time-stamp as far
+ as possible into the future). If restarts is set we'll do -W later. */
+
+ if (old_files != 0)
+ {
+ const char **p;
+ for (p = old_files->list; *p != 0; ++p)
+ {
+ struct file *f = enter_file (*p);
+ f->last_mtime = f->mtime_before_update = OLD_MTIME;
+ f->updated = 1;
+ f->update_status = us_success;
+ f->command_state = cs_finished;
+ }
+ }
+
+ if (!restarts && new_files != 0)
+ {
+ const char **p;
+ for (p = new_files->list; *p != 0; ++p)
+ {
+ struct file *f = enter_file (*p);
+ f->last_mtime = f->mtime_before_update = NEW_MTIME;
+ }
+ }
+
+ /* Initialize the remote job module. */
+ remote_setup ();
+
+ /* Dump any output we've collected. */
+
+ OUTPUT_UNSET ();
+ output_close (&make_sync);
+
+ if (read_files != 0)
+ {
+ /* Update any makefiles if necessary. */
+
+ FILE_TIMESTAMP *makefile_mtimes = 0;
+ unsigned int mm_idx = 0;
+ char **aargv = NULL;
+ const char **nargv;
+ int nargc;
+ enum update_status status;
+
+ DB (DB_BASIC, (_("Updating makefiles....\n")));
+
+ /* Remove any makefiles we don't want to try to update.
+ Also record the current modtimes so we can compare them later. */
+ {
+ register struct goaldep *d, *last;
+ last = 0;
+ d = read_files;
+ while (d != 0)
+ {
+ struct file *f = d->file;
+ if (f->double_colon)
+ for (f = f->double_colon; f != NULL; f = f->prev)
+ {
+ if (f->deps == 0 && f->cmds != 0)
+ {
+ /* This makefile is a :: target with commands, but
+ no dependencies. So, it will always be remade.
+ This might well cause an infinite loop, so don't
+ try to remake it. (This will only happen if
+ your makefiles are written exceptionally
+ stupidly; but if you work for Athena, that's how
+ you write your makefiles.) */
+
+ DB (DB_VERBOSE,
+ (_("Makefile '%s' might loop; not remaking it.\n"),
+ f->name));
+
+ if (last == 0)
+ read_files = d->next;
+ else
+ last->next = d->next;
+
+ /* Free the storage. */
+ free_goaldep (d);
+
+ d = last == 0 ? read_files : last->next;
+
+ break;
+ }
+ }
+
+ if (f == NULL || !f->double_colon)
+ {
+ makefile_mtimes = xrealloc (makefile_mtimes,
+ (mm_idx+1)
+ * sizeof (FILE_TIMESTAMP));
+ makefile_mtimes[mm_idx++] = file_mtime_no_search (d->file);
+ last = d;
+ d = d->next;
+ }
+ }
+ }
+
+ /* Set up 'MAKEFLAGS' specially while remaking makefiles. */
+ define_makeflags (1, 1);
+
+ {
+ int orig_db_level = db_level;
+
+ if (! ISDB (DB_MAKEFILES))
+ db_level = DB_NONE;
+
+ rebuilding_makefiles = 1;
+ status = update_goal_chain (read_files);
+ rebuilding_makefiles = 0;
+
+ db_level = orig_db_level;
+ }
+
+ switch (status)
+ {
+ case us_question:
+ /* The only way this can happen is if the user specified -q and asked
+ for one of the makefiles to be remade as a target on the command
+ line. Since we're not actually updating anything with -q we can
+ treat this as "did nothing". */
+
+ case us_none:
+ /* Did nothing. */
+ break;
+
+ case us_failed:
+ /* Failed to update. Figure out if we care. */
+ {
+ /* Nonzero if any makefile was successfully remade. */
+ int any_remade = 0;
+ /* Nonzero if any makefile we care about failed
+ in updating or could not be found at all. */
+ int any_failed = 0;
+ unsigned int i;
+ struct goaldep *d;
+
+ for (i = 0, d = read_files; d != 0; ++i, d = d->next)
+ {
+ if (d->file->updated)
+ {
+ /* This makefile was updated. */
+ if (d->file->update_status == us_success)
+ {
+ /* It was successfully updated. */
+ any_remade |= (file_mtime_no_search (d->file)
+ != makefile_mtimes[i]);
+ }
+ else if (! (d->flags & RM_DONTCARE))
+ {
+ FILE_TIMESTAMP mtime;
+ /* The update failed and this makefile was not
+ from the MAKEFILES variable, so we care. */
+ OS (error, NILF, _("Failed to remake makefile '%s'."),
+ d->file->name);
+ mtime = file_mtime_no_search (d->file);
+ any_remade |= (mtime != NONEXISTENT_MTIME
+ && mtime != makefile_mtimes[i]);
+ makefile_status = MAKE_FAILURE;
+ }
+ }
+ else
+ /* This makefile was not found at all. */
+ if (! (d->flags & RM_DONTCARE))
+ {
+ const char *dnm = dep_name (d);
+ size_t l = strlen (dnm);
+
+ /* This is a makefile we care about. See how much. */
+ if (d->flags & RM_INCLUDED)
+ /* An included makefile. We don't need to die, but we
+ do want to complain. */
+ error (NILF, l,
+ _("Included makefile '%s' was not found."), dnm);
+ else
+ {
+ /* A normal makefile. We must die later. */
+ error (NILF, l,
+ _("Makefile '%s' was not found"), dnm);
+ any_failed = 1;
+ }
+ }
+ }
+ /* Reset this to empty so we get the right error message below. */
+ read_files = 0;
+
+ if (any_remade)
+ goto re_exec;
+ if (any_failed)
+ die (MAKE_FAILURE);
+ break;
+ }
+
+ case us_success:
+ re_exec:
+ /* Updated successfully. Re-exec ourselves. */
+
+ remove_intermediates (0);
+
+ if (print_data_base_flag)
+ print_data_base ();
+
+ clean_jobserver (0);
+
+ if (makefiles != 0)
+ {
+ /* These names might have changed. */
+ int i, j = 0;
+ for (i = 1; i < argc; ++i)
+ if (strneq (argv[i], "-f", 2)) /* XXX */
+ {
+ if (argv[i][2] == '\0')
+ /* This cast is OK since we never modify argv. */
+ argv[++i] = (char *) makefiles->list[j];
+ else
+ argv[i] = xstrdup (concat (2, "-f", makefiles->list[j]));
+ ++j;
+ }
+ }
+
+ /* Add -o option for the stdin temporary file, if necessary. */
+ nargc = argc;
+ if (stdin_nm)
+ {
+ void *m = xmalloc ((nargc + 2) * sizeof (char *));
+ aargv = m;
+ memcpy (aargv, argv, argc * sizeof (char *));
+ aargv[nargc++] = xstrdup (concat (2, "-o", stdin_nm));
+ aargv[nargc] = 0;
+ nargv = m;
+ }
+ else
+ nargv = (const char**)argv;
+
+ if (directories != 0 && directories->idx > 0)
+ {
+ int bad = 1;
+ if (directory_before_chdir != 0)
+ {
+ if (chdir (directory_before_chdir) < 0)
+ perror_with_name ("chdir", "");
+ else
+ bad = 0;
+ }
+ if (bad)
+ O (fatal, NILF,
+ _("Couldn't change back to original directory."));
+ }
+
+ ++restarts;
+
+ if (ISDB (DB_BASIC))
+ {
+ const char **p;
+ printf (_("Re-executing[%u]:"), restarts);
+ for (p = nargv; *p != 0; ++p)
+ printf (" %s", *p);
+ putchar ('\n');
+ fflush (stdout);
+ }
+
+#ifndef _AMIGA
+ {
+ char **p;
+ for (p = environ; *p != 0; ++p)
+ {
+ if (strneq (*p, MAKELEVEL_NAME "=", MAKELEVEL_LENGTH+1))
+ {
+ *p = alloca (40);
+ sprintf (*p, "%s=%u", MAKELEVEL_NAME, makelevel);
+#ifdef VMS
+ vms_putenv_symbol (*p);
+#endif
+ }
+ else if (strneq (*p, "MAKE_RESTARTS=", CSTRLEN ("MAKE_RESTARTS=")))
+ {
+ *p = alloca (40);
+ sprintf (*p, "MAKE_RESTARTS=%s%u",
+ OUTPUT_IS_TRACED () ? "-" : "", restarts);
+ restarts = 0;
+ }
+ }
+ }
+#else /* AMIGA */
+ {
+ char buffer[256];
+
+ sprintf (buffer, "%u", makelevel);
+ SetVar (MAKELEVEL_NAME, buffer, -1, GVF_GLOBAL_ONLY);
+
+ sprintf (buffer, "%s%u", OUTPUT_IS_TRACED () ? "-" : "", restarts);
+ SetVar ("MAKE_RESTARTS", buffer, -1, GVF_GLOBAL_ONLY);
+ restarts = 0;
+ }
+#endif
+
+ /* If we didn't set the restarts variable yet, add it. */
+ if (restarts)
+ {
+ char *b = alloca (40);
+ sprintf (b, "MAKE_RESTARTS=%s%u",
+ OUTPUT_IS_TRACED () ? "-" : "", restarts);
+ putenv (b);
+ }
+
+ fflush (stdout);
+ fflush (stderr);
+
+#ifdef _AMIGA
+ exec_command (nargv);
+ exit (0);
+#elif defined (__EMX__)
+ {
+ /* It is not possible to use execve() here because this
+ would cause the parent process to be terminated with
+ exit code 0 before the child process has been terminated.
+ Therefore it may be the best solution simply to spawn the
+ child process including all file handles and to wait for its
+ termination. */
+ int pid;
+ int r;
+ pid = child_execute_job (NULL, 1, nargv, environ);
+
+ /* is this loop really necessary? */
+ do {
+ pid = wait (&r);
+ } while (pid <= 0);
+ /* use the exit code of the child process */
+ exit (WIFEXITED(r) ? WEXITSTATUS(r) : EXIT_FAILURE);
+ }
+#else
+#ifdef SET_STACK_SIZE
+ /* Reset limits, if necessary. */
+ if (stack_limit.rlim_cur)
+ setrlimit (RLIMIT_STACK, &stack_limit);
+#endif
+ exec_command ((char **)nargv, environ);
+#endif
+ free (aargv);
+ break;
+ }
+
+ /* Free the makefile mtimes. */
+ free (makefile_mtimes);
+ }
+
+ /* Set up 'MAKEFLAGS' again for the normal targets. */
+ define_makeflags (1, 0);
+
+ /* Set always_make_flag if -B was given. */
+ always_make_flag = always_make_set;
+
+ /* If restarts is set we haven't set up -W files yet, so do that now. */
+ if (restarts && new_files != 0)
+ {
+ const char **p;
+ for (p = new_files->list; *p != 0; ++p)
+ {
+ struct file *f = enter_file (*p);
+ f->last_mtime = f->mtime_before_update = NEW_MTIME;
+ }
+ }
+
+ /* If there is a temp file from reading a makefile from stdin, get rid of
+ it now. */
+ if (stdin_nm && unlink (stdin_nm) < 0 && errno != ENOENT)
+ perror_with_name (_("unlink (temporary file): "), stdin_nm);
+
+ /* If there were no command-line goals, use the default. */
+ if (goals == 0)
+ {
+ char *p;
+
+ if (default_goal_var->recursive)
+ p = variable_expand (default_goal_var->value);
+ else
+ {
+ p = variable_buffer_output (variable_buffer, default_goal_var->value,
+ strlen (default_goal_var->value));
+ *p = '\0';
+ p = variable_buffer;
+ }
+
+ if (*p != '\0')
+ {
+ struct file *f = lookup_file (p);
+
+ /* If .DEFAULT_GOAL is a non-existent target, enter it into the
+ table and let the standard logic sort it out. */
+ if (f == 0)
+ {
+ struct nameseq *ns;
+
+ ns = PARSE_SIMPLE_SEQ (&p, struct nameseq);
+ if (ns)
+ {
+ /* .DEFAULT_GOAL should contain one target. */
+ if (ns->next != 0)
+ O (fatal, NILF,
+ _(".DEFAULT_GOAL contains more than one target"));
+
+ f = enter_file (strcache_add (ns->name));
+
+ ns->name = 0; /* It was reused by enter_file(). */
+ free_ns_chain (ns);
+ }
+ }
+
+ if (f)
+ {
+ goals = alloc_goaldep ();
+ goals->file = f;
+ }
+ }
+ }
+ else
+ lastgoal->next = 0;
+
+
+ if (!goals)
+ {
+ if (read_files == 0)
+ O (fatal, NILF, _("No targets specified and no makefile found"));
+
+ O (fatal, NILF, _("No targets"));
+ }
+
+ /* Update the goals. */
+
+ DB (DB_BASIC, (_("Updating goal targets....\n")));
+
+ {
+ switch (update_goal_chain (goals))
+ {
+ case us_none:
+ /* Nothing happened. */
+ /* FALLTHROUGH */
+ case us_success:
+ /* Keep the previous result. */
+ break;
+ case us_question:
+ /* We are under -q and would run some commands. */
+ makefile_status = MAKE_TROUBLE;
+ break;
+ case us_failed:
+ /* Updating failed. POSIX.2 specifies exit status >1 for this; */
+ makefile_status = MAKE_FAILURE;
+ break;
+ }
+
+ /* If we detected some clock skew, generate one last warning */
+ if (clock_skew_detected)
+ O (error, NILF,
+ _("warning: Clock skew detected. Your build may be incomplete."));
+
+ /* Exit. */
+ die (makefile_status);
+ }
+
+ /* NOTREACHED */
+ exit (MAKE_SUCCESS);
+}
+
+/* Parsing of arguments, decoding of switches. */
+
+static char options[1 + sizeof (switches) / sizeof (switches[0]) * 3];
+static struct option long_options[(sizeof (switches) / sizeof (switches[0])) +
+ (sizeof (long_option_aliases) /
+ sizeof (long_option_aliases[0]))];
+
+/* Fill in the string and vector for getopt. */
+static void
+init_switches (void)
+{
+ char *p;
+ unsigned int c;
+ unsigned int i;
+
+ if (options[0] != '\0')
+ /* Already done. */
+ return;
+
+ p = options;
+
+ /* Return switch and non-switch args in order, regardless of
+ POSIXLY_CORRECT. Non-switch args are returned as option 1. */
+ *p++ = '-';
+
+ for (i = 0; switches[i].c != '\0'; ++i)
+ {
+ long_options[i].name = (switches[i].long_name == 0 ? "" :
+ switches[i].long_name);
+ long_options[i].flag = 0;
+ long_options[i].val = switches[i].c;
+ if (short_option (switches[i].c))
+ *p++ = switches[i].c;
+ switch (switches[i].type)
+ {
+ case flag:
+ case flag_off:
+ case ignore:
+ long_options[i].has_arg = no_argument;
+ break;
+
+ case string:
+ case strlist:
+ case filename:
+ case positive_int:
+ case floating:
+ if (short_option (switches[i].c))
+ *p++ = ':';
+ if (switches[i].noarg_value != 0)
+ {
+ if (short_option (switches[i].c))
+ *p++ = ':';
+ long_options[i].has_arg = optional_argument;
+ }
+ else
+ long_options[i].has_arg = required_argument;
+ break;
+ }
+ }
+ *p = '\0';
+ for (c = 0; c < (sizeof (long_option_aliases) /
+ sizeof (long_option_aliases[0]));
+ ++c)
+ long_options[i++] = long_option_aliases[c];
+ long_options[i].name = 0;
+}
+
+
+/* Non-option argument. It might be a variable definition. */
+static void
+handle_non_switch_argument (const char *arg, int env)
+{
+ struct variable *v;
+
+ if (arg[0] == '-' && arg[1] == '\0')
+ /* Ignore plain '-' for compatibility. */
+ return;
+
+#ifdef VMS
+ {
+ /* VMS DCL quoting can result in foo="bar baz" showing up here.
+ Need to remove the double quotes from the value. */
+ char * eq_ptr;
+ char * new_arg;
+ eq_ptr = strchr (arg, '=');
+ if ((eq_ptr != NULL) && (eq_ptr[1] == '"'))
+ {
+ int len;
+ int seg1;
+ int seg2;
+ len = strlen(arg);
+ new_arg = alloca(len);
+ seg1 = eq_ptr - arg + 1;
+ strncpy(new_arg, arg, (seg1));
+ seg2 = len - seg1 - 1;
+ strncpy(&new_arg[seg1], &eq_ptr[2], seg2);
+ new_arg[seg1 + seg2] = 0;
+ if (new_arg[seg1 + seg2 - 1] == '"')
+ new_arg[seg1 + seg2 - 1] = 0;
+ arg = new_arg;
+ }
+ }
+#endif
+ v = try_variable_definition (0, arg, o_command, 0);
+ if (v != 0)
+ {
+ /* It is indeed a variable definition. If we don't already have this
+ one, record a pointer to the variable for later use in
+ define_makeflags. */
+ struct command_variable *cv;
+
+ for (cv = command_variables; cv != 0; cv = cv->next)
+ if (cv->variable == v)
+ break;
+
+ if (! cv)
+ {
+ cv = xmalloc (sizeof (*cv));
+ cv->variable = v;
+ cv->next = command_variables;
+ command_variables = cv;
+ }
+ }
+ else if (! env)
+ {
+ /* Not an option or variable definition; it must be a goal
+ target! Enter it as a file and add it to the dep chain of
+ goals. */
+ struct file *f = enter_file (strcache_add (expand_command_line_file (arg)));
+ f->cmd_target = 1;
+
+ if (goals == 0)
+ {
+ goals = alloc_goaldep ();
+ lastgoal = goals;
+ }
+ else
+ {
+ lastgoal->next = alloc_goaldep ();
+ lastgoal = lastgoal->next;
+ }
+
+ lastgoal->file = f;
+
+ {
+ /* Add this target name to the MAKECMDGOALS variable. */
+ struct variable *gv;
+ const char *value;
+
+ gv = lookup_variable (STRING_SIZE_TUPLE ("MAKECMDGOALS"));
+ if (gv == 0)
+ value = f->name;
+ else
+ {
+ /* Paste the old and new values together */
+ unsigned int oldlen, newlen;
+ char *vp;
+
+ oldlen = strlen (gv->value);
+ newlen = strlen (f->name);
+ vp = alloca (oldlen + 1 + newlen + 1);
+ memcpy (vp, gv->value, oldlen);
+ vp[oldlen] = ' ';
+ memcpy (&vp[oldlen + 1], f->name, newlen + 1);
+ value = vp;
+ }
+ define_variable_cname ("MAKECMDGOALS", value, o_default, 0);
+ }
+ }
+}
+
+/* Print a nice usage method. */
+
+static void
+print_usage (int bad)
+{
+ const char *const *cpp;
+ FILE *usageto;
+
+ if (print_version_flag)
+ print_version ();
+
+ usageto = bad ? stderr : stdout;
+
+ fprintf (usageto, _("Usage: %s [options] [target] ...\n"), program);
+
+ for (cpp = usage; *cpp; ++cpp)
+ fputs (_(*cpp), usageto);
+
+ if (!remote_description || *remote_description == '\0')
+ fprintf (usageto, _("\nThis program built for %s\n"), make_host);
+ else
+ fprintf (usageto, _("\nThis program built for %s (%s)\n"),
+ make_host, remote_description);
+
+ fprintf (usageto, _("Report bugs to <bug-make@gnu.org>\n"));
+}
+
+/* Decode switches from ARGC and ARGV.
+ They came from the environment if ENV is nonzero. */
+
+static void
+decode_switches (int argc, const char **argv, int env)
+{
+ int bad = 0;
+ register const struct command_switch *cs;
+ register struct stringlist *sl;
+ register int c;
+
+ /* getopt does most of the parsing for us.
+ First, get its vectors set up. */
+
+ init_switches ();
+
+ /* Let getopt produce error messages for the command line,
+ but not for options from the environment. */
+ opterr = !env;
+ /* Reset getopt's state. */
+ optind = 0;
+
+ while (optind < argc)
+ {
+ const char *coptarg;
+
+ /* Parse the next argument. */
+ c = getopt_long (argc, (char*const*)argv, options, long_options, NULL);
+ coptarg = optarg;
+ if (c == EOF)
+ /* End of arguments, or "--" marker seen. */
+ break;
+ else if (c == 1)
+ /* An argument not starting with a dash. */
+ handle_non_switch_argument (coptarg, env);
+ else if (c == '?')
+ /* Bad option. We will print a usage message and die later.
+ But continue to parse the other options so the user can
+ see all he did wrong. */
+ bad = 1;
+ else
+ for (cs = switches; cs->c != '\0'; ++cs)
+ if (cs->c == c)
+ {
+ /* Whether or not we will actually do anything with
+ this switch. We test this individually inside the
+ switch below rather than just once outside it, so that
+ options which are to be ignored still consume args. */
+ int doit = !env || cs->env;
+
+ switch (cs->type)
+ {
+ default:
+ abort ();
+
+ case ignore:
+ break;
+
+ case flag:
+ case flag_off:
+ if (doit)
+ *(int *) cs->value_ptr = cs->type == flag;
+ break;
+
+ case string:
+ case strlist:
+ case filename:
+ if (!doit)
+ break;
+
+ if (! coptarg)
+ coptarg = xstrdup (cs->noarg_value);
+ else if (*coptarg == '\0')
+ {
+ char opt[2] = "c";
+ const char *op = opt;
+
+ if (short_option (cs->c))
+ opt[0] = cs->c;
+ else
+ op = cs->long_name;
+
+ error (NILF, strlen (op),
+ _("the '%s%s' option requires a non-empty string argument"),
+ short_option (cs->c) ? "-" : "--", op);
+ bad = 1;
+ break;
+ }
+
+ if (cs->type == string)
+ {
+ char **val = (char **)cs->value_ptr;
+ free (*val);
+ *val = xstrdup (coptarg);
+ break;
+ }
+
+ sl = *(struct stringlist **) cs->value_ptr;
+ if (sl == 0)
+ {
+ sl = xmalloc (sizeof (struct stringlist));
+ sl->max = 5;
+ sl->idx = 0;
+ sl->list = xmalloc (5 * sizeof (char *));
+ *(struct stringlist **) cs->value_ptr = sl;
+ }
+ else if (sl->idx == sl->max - 1)
+ {
+ sl->max += 5;
+ /* MSVC erroneously warns without a cast here. */
+ sl->list = xrealloc ((void *)sl->list,
+ sl->max * sizeof (char *));
+ }
+ if (cs->type == filename)
+ sl->list[sl->idx++] = expand_command_line_file (coptarg);
+ else
+ sl->list[sl->idx++] = xstrdup (coptarg);
+ sl->list[sl->idx] = 0;
+ break;
+
+ case positive_int:
+ /* See if we have an option argument; if we do require that
+ it's all digits, not something like "10foo". */
+ if (coptarg == 0 && argc > optind)
+ {
+ const char *cp;
+ for (cp=argv[optind]; ISDIGIT (cp[0]); ++cp)
+ ;
+ if (cp[0] == '\0')
+ coptarg = argv[optind++];
+ }
+
+ if (!doit)
+ break;
+
+ if (coptarg)
+ {
+ int i = atoi (coptarg);
+ const char *cp;
+
+ /* Yes, I realize we're repeating this in some cases. */
+ for (cp = coptarg; ISDIGIT (cp[0]); ++cp)
+ ;
+
+ if (i < 1 || cp[0] != '\0')
+ {
+ error (NILF, 0,
+ _("the '-%c' option requires a positive integer argument"),
+ cs->c);
+ bad = 1;
+ }
+ else
+ *(unsigned int *) cs->value_ptr = i;
+ }
+ else
+ *(unsigned int *) cs->value_ptr
+ = *(unsigned int *) cs->noarg_value;
+ break;
+
+#ifndef NO_FLOAT
+ case floating:
+ if (coptarg == 0 && optind < argc
+ && (ISDIGIT (argv[optind][0]) || argv[optind][0] == '.'))
+ coptarg = argv[optind++];
+
+ if (doit)
+ *(double *) cs->value_ptr
+ = (coptarg != 0 ? atof (coptarg)
+ : *(double *) cs->noarg_value);
+
+ break;
+#endif
+ }
+
+ /* We've found the switch. Stop looking. */
+ break;
+ }
+ }
+
+ /* There are no more options according to getting getopt, but there may
+ be some arguments left. Since we have asked for non-option arguments
+ to be returned in order, this only happens when there is a "--"
+ argument to prevent later arguments from being options. */
+ while (optind < argc)
+ handle_non_switch_argument (argv[optind++], env);
+
+ if (!env && (bad || print_usage_flag))
+ {
+ print_usage (bad);
+ die (bad ? MAKE_FAILURE : MAKE_SUCCESS);
+ }
+
+ /* If there are any options that need to be decoded do it now. */
+ decode_debug_flags ();
+ decode_output_sync_flags ();
+}
+
+/* Decode switches from environment variable ENVAR (which is LEN chars long).
+ We do this by chopping the value into a vector of words, prepending a
+ dash to the first word if it lacks one, and passing the vector to
+ decode_switches. */
+
+static void
+decode_env_switches (const char *envar, unsigned int len)
+{
+ char *varref = alloca (2 + len + 2);
+ char *value, *p, *buf;
+ int argc;
+ const char **argv;
+
+ /* Get the variable's value. */
+ varref[0] = '$';
+ varref[1] = '(';
+ memcpy (&varref[2], envar, len);
+ varref[2 + len] = ')';
+ varref[2 + len + 1] = '\0';
+ value = variable_expand (varref);
+
+ /* Skip whitespace, and check for an empty value. */
+ NEXT_TOKEN (value);
+ len = strlen (value);
+ if (len == 0)
+ return;
+
+ /* Allocate a vector that is definitely big enough. */
+ argv = alloca ((1 + len + 1) * sizeof (char *));
+
+ /* getopt will look at the arguments starting at ARGV[1].
+ Prepend a spacer word. */
+ argv[0] = 0;
+ argc = 1;
+
+ /* We need a buffer to copy the value into while we split it into words
+ and unquote it. Set up in case we need to prepend a dash later. */
+ buf = alloca (1 + len + 1);
+ buf[0] = '-';
+ p = buf+1;
+ argv[argc] = p;
+ while (*value != '\0')
+ {
+ if (*value == '\\' && value[1] != '\0')
+ ++value; /* Skip the backslash. */
+ else if (ISBLANK (*value))
+ {
+ /* End of the word. */
+ *p++ = '\0';
+ argv[++argc] = p;
+ do
+ ++value;
+ while (ISBLANK (*value));
+ continue;
+ }
+ *p++ = *value++;
+ }
+ *p = '\0';
+ argv[++argc] = 0;
+ assert (p < buf + len + 2);
+
+ if (argv[1][0] != '-' && strchr (argv[1], '=') == 0)
+ /* The first word doesn't start with a dash and isn't a variable
+ definition, so add a dash. */
+ argv[1] = buf;
+
+ /* Parse those words. */
+ decode_switches (argc, argv, 1);
+}
+
+/* Quote the string IN so that it will be interpreted as a single word with
+ no magic by decode_env_switches; also double dollar signs to avoid
+ variable expansion in make itself. Write the result into OUT, returning
+ the address of the next character to be written.
+ Allocating space for OUT twice the length of IN is always sufficient. */
+
+static char *
+quote_for_env (char *out, const char *in)
+{
+ while (*in != '\0')
+ {
+ if (*in == '$')
+ *out++ = '$';
+ else if (ISBLANK (*in) || *in == '\\')
+ *out++ = '\\';
+ *out++ = *in++;
+ }
+
+ return out;
+}
+
+/* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
+ command switches. Include options with args if ALL is nonzero.
+ Don't include options with the 'no_makefile' flag set if MAKEFILE. */
+
+static struct variable *
+define_makeflags (int all, int makefile)
+{
+ const char ref[] = "$(MAKEOVERRIDES)";
+ const char posixref[] = "$(-*-command-variables-*-)";
+ const char evalref[] = "$(-*-eval-flags-*-)";
+ const struct command_switch *cs;
+ char *flagstring;
+ char *p;
+
+ /* We will construct a linked list of 'struct flag's describing
+ all the flags which need to go in MAKEFLAGS. Then, once we
+ know how many there are and their lengths, we can put them all
+ together in a string. */
+
+ struct flag
+ {
+ struct flag *next;
+ const struct command_switch *cs;
+ const char *arg;
+ };
+ struct flag *flags = 0;
+ struct flag *last = 0;
+ unsigned int flagslen = 0;
+#define ADD_FLAG(ARG, LEN) \
+ do { \
+ struct flag *new = alloca (sizeof (struct flag)); \
+ new->cs = cs; \
+ new->arg = (ARG); \
+ new->next = 0; \
+ if (! flags) \
+ flags = new; \
+ else \
+ last->next = new; \
+ last = new; \
+ if (new->arg == 0) \
+ /* Just a single flag letter: " -x" */ \
+ flagslen += 3; \
+ else \
+ /* " -xfoo", plus space to escape "foo". */ \
+ flagslen += 1 + 1 + 1 + (3 * (LEN)); \
+ if (!short_option (cs->c)) \
+ /* This switch has no single-letter version, so we use the long. */ \
+ flagslen += 2 + strlen (cs->long_name); \
+ } while (0)
+
+ for (cs = switches; cs->c != '\0'; ++cs)
+ if (cs->toenv && (!makefile || !cs->no_makefile))
+ switch (cs->type)
+ {
+ case ignore:
+ break;
+
+ case flag:
+ case flag_off:
+ if ((!*(int *) cs->value_ptr) == (cs->type == flag_off)
+ && (cs->default_value == 0
+ || *(int *) cs->value_ptr != *(int *) cs->default_value))
+ ADD_FLAG (0, 0);
+ break;
+
+ case positive_int:
+ if (all)
+ {
+ if ((cs->default_value != 0
+ && (*(unsigned int *) cs->value_ptr
+ == *(unsigned int *) cs->default_value)))
+ break;
+ else if (cs->noarg_value != 0
+ && (*(unsigned int *) cs->value_ptr ==
+ *(unsigned int *) cs->noarg_value))
+ ADD_FLAG ("", 0); /* Optional value omitted; see below. */
+ else
+ {
+ char *buf = alloca (30);
+ sprintf (buf, "%u", *(unsigned int *) cs->value_ptr);
+ ADD_FLAG (buf, strlen (buf));
+ }
+ }
+ break;
+
+#ifndef NO_FLOAT
+ case floating:
+ if (all)
+ {
+ if (cs->default_value != 0
+ && (*(double *) cs->value_ptr
+ == *(double *) cs->default_value))
+ break;
+ else if (cs->noarg_value != 0
+ && (*(double *) cs->value_ptr
+ == *(double *) cs->noarg_value))
+ ADD_FLAG ("", 0); /* Optional value omitted; see below. */
+ else
+ {
+ char *buf = alloca (100);
+ sprintf (buf, "%g", *(double *) cs->value_ptr);
+ ADD_FLAG (buf, strlen (buf));
+ }
+ }
+ break;
+#endif
+
+ case string:
+ if (all)
+ {
+ p = *((char **)cs->value_ptr);
+ if (p)
+ ADD_FLAG (p, strlen (p));
+ }
+ break;
+
+ case filename:
+ case strlist:
+ if (all)
+ {
+ struct stringlist *sl = *(struct stringlist **) cs->value_ptr;
+ if (sl != 0)
+ {
+ unsigned int i;
+ for (i = 0; i < sl->idx; ++i)
+ ADD_FLAG (sl->list[i], strlen (sl->list[i]));
+ }
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+#undef ADD_FLAG
+
+ /* Four more for the possible " -- ", plus variable references. */
+ flagslen += 4 + CSTRLEN (posixref) + 1 + CSTRLEN (evalref) + 1;
+
+ /* Construct the value in FLAGSTRING.
+ We allocate enough space for a preceding dash and trailing null. */
+ flagstring = alloca (1 + flagslen + 1);
+ memset (flagstring, '\0', 1 + flagslen + 1);
+ p = flagstring;
+
+ /* Start with a dash, for MFLAGS. */
+ *p++ = '-';
+
+ /* Add simple options as a group. */
+ while (flags != 0 && !flags->arg && short_option (flags->cs->c))
+ {
+ *p++ = flags->cs->c;
+ flags = flags->next;
+ }
+
+ /* Now add more complex flags: ones with options and/or long names. */
+ while (flags)
+ {
+ *p++ = ' ';
+ *p++ = '-';
+
+ /* Add the flag letter or name to the string. */
+ if (short_option (flags->cs->c))
+ *p++ = flags->cs->c;
+ else
+ {
+ /* Long options require a double-dash. */
+ *p++ = '-';
+ strcpy (p, flags->cs->long_name);
+ p += strlen (p);
+ }
+ /* An omitted optional argument has an ARG of "". */
+ if (flags->arg && flags->arg[0] != '\0')
+ {
+ if (!short_option (flags->cs->c))
+ /* Long options require '='. */
+ *p++ = '=';
+ p = quote_for_env (p, flags->arg);
+ }
+ flags = flags->next;
+ }
+
+ /* If no flags at all, get rid of the initial dash. */
+ if (p == &flagstring[1])
+ {
+ flagstring[0] = '\0';
+ p = flagstring;
+ }
+
+ /* Define MFLAGS before appending variable definitions. Omit an initial
+ empty dash. Since MFLAGS is not parsed for flags, there is no reason to
+ override any makefile redefinition. */
+ define_variable_cname ("MFLAGS",
+ flagstring + (flagstring[0] == '-' && flagstring[1] == ' ' ? 2 : 0),
+ o_env, 1);
+
+ /* Write a reference to -*-eval-flags-*-, which contains all the --eval
+ flag options. */
+ if (eval_strings)
+ {
+ *p++ = ' ';
+ memcpy (p, evalref, CSTRLEN (evalref));
+ p += CSTRLEN (evalref);
+ }
+
+ if (all && command_variables)
+ {
+ /* Write a reference to $(MAKEOVERRIDES), which contains all the
+ command-line variable definitions. Separate the variables from the
+ switches with a "--" arg. */
+
+ strcpy (p, " -- ");
+ p += 4;
+
+ /* Copy in the string. */
+ if (posix_pedantic)
+ {
+ memcpy (p, posixref, CSTRLEN (posixref));
+ p += CSTRLEN (posixref);
+ }
+ else
+ {
+ memcpy (p, ref, CSTRLEN (ref));
+ p += CSTRLEN (ref);
+ }
+ }
+
+ /* If there is a leading dash, omit it. */
+ if (flagstring[0] == '-')
+ ++flagstring;
+
+ /* This used to use o_env, but that lost when a makefile defined MAKEFLAGS.
+ Makefiles set MAKEFLAGS to add switches, but we still want to redefine
+ its value with the full set of switches. Then we used o_file, but that
+ lost when users added -e, causing a previous MAKEFLAGS env. var. to take
+ precedence over the new one. Of course, an override or command
+ definition will still take precedence. */
+ return define_variable_cname ("MAKEFLAGS", flagstring,
+ env_overrides ? o_env_override : o_file, 1);
+}
+
+/* Print version information. */
+
+static void
+print_version (void)
+{
+ static int printed_version = 0;
+
+ const char *precede = print_data_base_flag ? "# " : "";
+
+ if (printed_version)
+ /* Do it only once. */
+ return;
+
+ printf ("%sGNU Make %s\n", precede, version_string);
+
+ if (!remote_description || *remote_description == '\0')
+ printf (_("%sBuilt for %s\n"), precede, make_host);
+ else
+ printf (_("%sBuilt for %s (%s)\n"),
+ precede, make_host, remote_description);
+
+ /* Print this untranslated. The coding standards recommend translating the
+ (C) to the copyright symbol, but this string is going to change every
+ year, and none of the rest of it should be translated (including the
+ word "Copyright"), so it hardly seems worth it. */
+
+ printf ("%sCopyright (C) 1988-2016 Free Software Foundation, Inc.\n",
+ precede);
+
+ printf (_("%sLicense GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n\
+%sThis is free software: you are free to change and redistribute it.\n\
+%sThere is NO WARRANTY, to the extent permitted by law.\n"),
+ precede, precede, precede);
+
+ printed_version = 1;
+
+ /* Flush stdout so the user doesn't have to wait to see the
+ version information while make thinks about things. */
+ fflush (stdout);
+}
+
+/* Print a bunch of information about this and that. */
+
+static void
+print_data_base (void)
+{
+ time_t when = time ((time_t *) 0);
+
+ print_version ();
+
+ printf (_("\n# Make data base, printed on %s"), ctime (&when));
+
+ print_variable_data_base ();
+ print_dir_data_base ();
+ print_rule_data_base ();
+ print_file_data_base ();
+ print_vpath_data_base ();
+ strcache_print_stats ("#");
+
+ when = time ((time_t *) 0);
+ printf (_("\n# Finished Make data base on %s\n"), ctime (&when));
+}
+
+static void
+clean_jobserver (int status)
+{
+ /* Sanity: have we written all our jobserver tokens back? If our
+ exit status is 2 that means some kind of syntax error; we might not
+ have written all our tokens so do that now. If tokens are left
+ after any other error code, that's bad. */
+
+ if (jobserver_enabled() && jobserver_tokens)
+ {
+ if (status != 2)
+ ON (error, NILF,
+ "INTERNAL: Exiting with %u jobserver tokens (should be 0)!",
+ jobserver_tokens);
+ else
+ /* Don't write back the "free" token */
+ while (--jobserver_tokens)
+ jobserver_release (0);
+ }
+
+
+ /* Sanity: If we're the master, were all the tokens written back? */
+
+ if (master_job_slots)
+ {
+ /* We didn't write one for ourself, so start at 1. */
+ unsigned int tokens = 1 + jobserver_acquire_all ();
+
+ if (tokens != master_job_slots)
+ ONN (error, NILF,
+ "INTERNAL: Exiting with %u jobserver tokens available; should be %u!",
+ tokens, master_job_slots);
+
+ reset_jobserver ();
+ }
+}
+
+/* Exit with STATUS, cleaning up as necessary. */
+
+void
+die (int status)
+{
+ static char dying = 0;
+
+ if (!dying)
+ {
+ int err;
+
+ dying = 1;
+
+ if (print_version_flag)
+ print_version ();
+
+ /* Wait for children to die. */
+ err = (status != 0);
+ while (job_slots_used > 0)
+ reap_children (1, err);
+
+ /* Let the remote job module clean up its state. */
+ remote_cleanup ();
+
+ /* Remove the intermediate files. */
+ remove_intermediates (0);
+
+ if (print_data_base_flag)
+ print_data_base ();
+
+ if (verify_flag)
+ verify_file_data_base ();
+
+ clean_jobserver (status);
+
+ if (output_context)
+ {
+ /* die() might be called in a recipe output context due to an
+ $(error ...) function. */
+ output_close (output_context);
+
+ if (output_context != &make_sync)
+ output_close (&make_sync);
+
+ OUTPUT_UNSET ();
+ }
+
+ output_close (NULL);
+
+ /* Try to move back to the original directory. This is essential on
+ MS-DOS (where there is really only one process), and on Unix it
+ puts core files in the original directory instead of the -C
+ directory. Must wait until after remove_intermediates(), or unlinks
+ of relative pathnames fail. */
+ if (directory_before_chdir != 0)
+ {
+ /* If it fails we don't care: shut up GCC. */
+ int _x UNUSED;
+ _x = chdir (directory_before_chdir);
+ }
+ }
+
+ exit (status);
+}
diff --git a/maintMakefile b/maintMakefile
new file mode 100644
index 0000000..c1d4509
--- /dev/null
+++ b/maintMakefile
@@ -0,0 +1,410 @@
+# Maintainer-only makefile segment. This contains things that are relevant
+# only if you have the full copy of the GNU make sources from the Git
+# tree, not a dist copy.
+
+BUGLIST := bug-make@gnu.org
+
+# These are related to my personal setup.
+GPG_FINGERPRINT := 6338B6D4
+
+# SRCROOTDIR is just a handy location to keep source files in
+SRCROOTDIR ?= $(HOME)/src
+
+# Where the gnulib project has been locally cloned
+GNULIBDIR ?= $(SRCROOTDIR)/gnulib
+
+# Where to put the CVS checkout of the GNU web repository
+GNUWEBDIR ?= $(SRCROOTDIR)/gnu-www
+
+# Where to put the CVS checkout of the GNU make web repository
+MAKEWEBDIR ?= $(SRCROOTDIR)/make/make-web
+
+# We like mondo-warnings!
+AM_CFLAGS += -Wall -Wwrite-strings -Wextra -Wdeclaration-after-statement -Wshadow -Wpointer-arith -Wbad-function-cast
+
+MAKE_MAINTAINER_MODE := -DMAKE_MAINTAINER_MODE
+AM_CPPFLAGS += $(MAKE_MAINTAINER_MODE)
+
+# I want this one but I have to wait for the const cleanup!
+# -Wwrite-strings
+
+# Find the glob source files... this might be dangerous, but we're maintainers!
+globsrc := $(wildcard glob/*.c)
+globhdr := $(wildcard glob/*.h)
+
+TEMPLATES = README README.DOS README.W32 README.OS2 \
+ config.ami configh.dos config.h.W32 config.h-vms
+MTEMPLATES = Makefile.DOS SMakefile
+
+# These are built as a side-effect of the dist rule
+#all-am: $(TEMPLATES) $(MTEMPLATES) build.sh.in
+
+# Create preprocessor output files--GCC specific!
+%.i : %.c
+ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) -E -dD -o $@ $<
+
+# General rule for turning a .template into a regular file.
+#
+$(TEMPLATES) : % : %.template Makefile
+ rm -f $@
+ sed -e 's@%VERSION%@$(VERSION)@g' \
+ -e 's@%PACKAGE%@$(PACKAGE)@g' \
+ $< > $@
+ chmod a-w $@
+
+# Construct Makefiles by adding on dependencies, etc.
+#
+$(MTEMPLATES) : % : %.template .dep_segment Makefile
+ rm -f $@
+ sed -e 's@%VERSION%@$(VERSION)@g' \
+ -e 's@%PROGRAMS%@$(bin_PROGRAMS)@g' \
+ -e 's@%SOURCES%@$(filter-out remote-%,$(make_SOURCES)) remote-$$(REMOTE).c@g' \
+ -e 's@%OBJECTS%@$(filter-out remote-%,$(make_OBJECTS)) remote-$$(REMOTE).o@g' \
+ -e 's@%GLOB_SOURCES%@$(globsrc) $(globhdr)@g' \
+ -e 's@%GLOB_OBJECTS%@$(globsrc:glob/%.c=%.o)@g' \
+ $< > $@
+ echo >>$@; echo '# --------------- DEPENDENCIES' >>$@; echo '#' >>$@; \
+ cat $(word 2,$^) >>$@
+ chmod a-w $@
+
+NMakefile: NMakefile.template .dep_segment Makefile
+ rm -f $@
+ cp $< $@
+ echo >>$@; echo '# --------------- DEPENDENCIES' >>$@; echo '#' >>$@; \
+ sed 's/^\([^ ]*\)\.o:/$$(OUTDIR)\/\1.obj:/' $(word 2,$^) >>$@
+ chmod a-w $@
+
+# Construct build.sh.in
+#
+build.sh.in: build.template Makefile
+ rm -f $@
+ sed -e 's@%objs%@$(patsubst %.o,%.$${OBJEXT},$(filter-out remote-%,$(make_OBJECTS)))@g' \
+ -e 's@%globobjs%@$(patsubst %.c,%.$${OBJEXT},$(globsrc))@g' \
+ $< > $@
+ chmod a-w+x $@
+
+
+# Use automake to build a dependency list file, for "foreign" makefiles like
+# Makefile.DOS.
+#
+# Automake used to have a --generate-deps flag, but it's gone now, so we have
+# to do it ourselves.
+#
+DEP_FILES := $(wildcard $(DEPDIR)/*.Po)
+.dep_segment: Makefile.am maintMakefile $(DEP_FILES)
+ rm -f $@
+ (for f in $(DEPDIR)/*.Po; do \
+ echo ""; \
+ echo "# $$f"; \
+ sed -e '/^[^:]*\.[ch] *:/d' \
+ -e 's, /usr/[^ ]*,,g' \
+ -e 's, $(srcdir)/, ,g' \
+ -e '/^ *\\$$/d' \
+ -e '/^ *$$/d' \
+ < $$f; \
+ done) > $@
+
+# Cleaning
+
+GIT := git
+
+# git-clean: Clean all "ignored" files. Leave untracked files.
+# git-very-clean: Clean all files that aren't stored in source control.
+
+.PHONY: git-clean git-very-clean
+git-clean:
+ -$(GIT) clean -fdX
+git-very-clean: git-clean
+ -$(GIT) clean -fd
+
+
+
+## ---------------------- ##
+## Generating ChangeLog. ##
+## ---------------------- ##
+
+gl2cl-date := 2013-10-10
+gl2cl := $(GNULIBDIR)/build-aux/gitlog-to-changelog
+
+# Rebuild the changelog whenever a new commit is added
+ChangeLog: .check-git-HEAD
+ if test -f '$(gl2cl)'; then \
+ '$(gl2cl)' --since='$(gl2cl-date)' > '$@'; \
+ else \
+ echo "WARNING: $(gl2cl) is not available. No $@ generated."; \
+ fi
+
+.PHONY: .check-git-HEAD
+.check-git-HEAD:
+ sha="`git rev-parse HEAD`"; \
+ [ -f '$@' ] && [ "`cat '$@' 2>/dev/null`" = "$$sha" ] \
+ || echo "$$sha" > '$@'
+
+
+## ---------------- ##
+## Updating files. ##
+## ---------------- ##
+RSYNC = rsync -Lrtvz
+WGET = wget --passive-ftp -np -nv
+ftp-gnu = ftp://ftp.gnu.org/gnu
+
+move_if_change = if test -r $(target) && cmp -s $(target).t $(target); then \
+ echo $(target) is unchanged; rm -f $(target).t; \
+ else \
+ mv -f $(target).t $(target); \
+ fi
+
+# ------------------- #
+# Updating PO files. #
+# ------------------- #
+
+# PO archive mirrors --- Be careful; some might not be fully populated!
+# ftp://ftp.unex.es/pub/gnu-i18n/po/maint/
+# http://translation.sf.net/maint/
+# ftp://tiger.informatik.hu-berlin.de/pub/po/maint/
+
+po_wget_flags = --recursive --level=1 --no-directories --no-check-certificate
+po_repo = http://translationproject.org/latest/$(PACKAGE)
+po_sync = translationproject.org::tp/latest/$(PACKAGE)/
+
+.PHONY: do-po-update po-update
+do-po-update:
+ tmppo="/tmp/po-$(PACKAGE)-$(VERSION).$$$$" \
+ && rm -rf "$$tmppo" \
+ && mkdir "$$tmppo" \
+ && $(RSYNC) $(po_sync) "$$tmppo" \
+ && cp "$$tmppo"/*.po $(top_srcdir)/po \
+ && rm -rf "$$tmppo"
+ cd po && $(MAKE) update-po
+ $(MAKE) po-check
+
+po-update:
+ [ -d "po" ] && $(MAKE) do-po-update
+
+# -------------------------- #
+# Updating GNU build files. #
+# -------------------------- #
+
+# The following pseudo table associates a local directory and a URL
+# with each of the files that belongs to some other package and is
+# regularly updated from the specified URL.
+
+cvs-url = http://savannah.gnu.org/cgi-bin/viewcvs/~checkout~
+git-url = http://git.savannah.gnu.org/cgit
+target = $(patsubst get-%,%,$@)
+
+config-url = $(git-url)/config.git/plain/$(patsubst get-config/%,%,$@)
+get-config/config.guess get-config/config.sub:
+ @echo $(WGET) $(config-url) -O $(target) \
+ && $(WGET) $(config-url) -O $(target).t \
+ && $(move_if_change)
+
+gnulib-url = $(git-url)/gnulib.git/plain/build-aux/$(patsubst get-config/%,%,$@)
+get-config/texinfo.tex:
+ @echo $(WGET) $(gnulib-url) -O $(target) \
+ && $(WGET) $(gnulib-url) -O $(target).t \
+ && $(move_if_change)
+
+gnustandards-url = $(cvs-url)/gnustandards/gnustandards/$(patsubst get-doc/%,%,$@)
+get-doc/make-stds.texi get-doc/fdl.texi:
+ @echo $(WGET) $(gnustandards-url) -O $(target) \
+ && $(WGET) $(gnustandards-url) -O $(target).t \
+ && $(move_if_change)
+
+.PHONY: scm-update
+scm-update: get-config/texinfo.tex get-config/config.guess get-config/config.sub get-doc/make-stds.texi get-doc/fdl.texi
+
+
+# --------------------- #
+# Updating everything. #
+# --------------------- #
+
+.PHONY: update
+update: po-update scm-update
+
+
+# ---------------------------------- #
+# Alternative configuration checks. #
+# ---------------------------------- #
+
+.PHONY: check-alt-config
+check-alt-config: \
+ checkcfg.--disable-job-server \
+ checkcfg.--disable-load \
+ checkcfg.--without-guile \
+ checkcfg.CPPFLAGS^-DNO_OUTPUT_SYNC \
+ checkcfg.CPPFLAGS^-DNO_ARCHIVES
+
+# Trick GNU make so it doesn't run the submake as a recursive make.
+NR_MAKE = $(MAKE)
+
+# Check builds both with build.sh and with make
+checkcfg.%: distdir
+ @echo "Building $@ (output in checkcfg.$*.log)"
+ @exec >'checkcfg.$*.log' 2>&1; \
+ rm -rf $(distdir)/_build \
+ && mkdir $(distdir)/_build \
+ && cd $(distdir)/_build \
+ && echo "Testing configure with $(subst ^,=,$*)" \
+ && ../configure --srcdir=.. $(subst ^,=,$*) \
+ $(AM_DISTCHECK_CONFIGURE_FLAGS) $(DISTCHECK_CONFIGURE_FLAGS) \
+ CFLAGS='$(AM_CFLAGS)' \
+ && ./build.sh \
+ && ./make $(AM_MAKEFLAGS) check \
+ && rm -f *.o make \
+ && $(NR_MAKE) $(AM_MAKEFLAGS) \
+ && ./make $(AM_MAKEFLAGS) check
+
+
+## --------------- ##
+## Sanity checks. ##
+## --------------- ##
+
+# Before we build a distribution be sure we run our local checks
+#distdir: local-check
+
+.PHONY: local-check po-check changelog-check
+
+# Checks that don't require Git. Run 'changelog-check' last as
+# previous test may reveal problems requiring new ChangeLog entries.
+local-check: po-check changelog-check
+
+# copyright-check writable-files
+
+changelog-check:
+ if head $(top_srcdir)/ChangeLog | grep 'Version $(VERSION)' >/dev/null; then \
+ :; \
+ else \
+ echo "$(VERSION) not in ChangeLog" 1>&2; \
+ exit 1; \
+ fi
+
+# Verify that all source files using _() are listed in po/POTFILES.in.
+# Ignore makeint.h; it defines _().
+po-check:
+ if test -f po/POTFILES.in; then \
+ grep '^[^#]' po/POTFILES.in | sort > $@-1; \
+ $(PERL) -wn -e 'if (/\b_\(/) { $$ARGV eq "./makeint.h" || print "$$ARGV\n" and close ARGV }' `find . -name '*.[ch]'` | sed 's,^\./,,' | sort > $@-2; \
+ diff -u $@-1 $@-2 || exit 1; \
+ rm -f $@-1 $@-2; \
+ fi
+
+
+## --------------- ##
+## Generate docs. ##
+## --------------- ##
+
+.PHONY: update-makeweb gendocs
+
+CVS = cvs
+
+makeweb-repo = $(USER)@cvs.sv.gnu.org:/web/make
+gnuweb-repo = :pserver:anonymous@cvs.sv.gnu.org:/web/www
+gnuweb-dir = www/server/standards
+
+# Get the GNU make web page boilerplate etc.
+update-makeweb:
+ [ -d '$(MAKEWEBDIR)' ] || mkdir -p '$(MAKEWEBDIR)'
+ [ -d '$(MAKEWEBDIR)'/CVS ] \
+ && { cd '$(MAKEWEBDIR)' && $(CVS) update; } \
+ || { mkdir -p '$(dir $(MAKEWEBDIR))' && cd '$(dir $(MAKEWEBDIR))' \
+ && $(CVS) -d $(makeweb-repo) co -d '$(notdir $(MAKEWEBDIR))' make; }
+
+# Get the GNU web page boilerplate etc.
+update-gnuweb:
+ [ -d '$(GNUWEBDIR)' ] || mkdir -p '$(GNUWEBDIR)'
+ [ -d '$(GNUWEBDIR)/$(gnuweb-dir)'/CVS ] \
+ && { cd '$(GNUWEBDIR)/$(gnuweb-dir)' && $(CVS) update; } \
+ || { cd '$(GNUWEBDIR)' && $(CVS) -d $(gnuweb-repo) co '$(gnuweb-dir)'; }
+
+gendocs: update-gnuweb update-makeweb
+ cp $(GNULIBDIR)/doc/gendocs_template doc
+ cd doc \
+ && rm -rf doc/manual \
+ && $(GNULIBDIR)/build-aux/gendocs.sh --email '$(BUGLIST)' \
+ make 'GNU Make Manual'
+ find '$(MAKEWEBDIR)'/manual \( -name CVS -prune \) -o \( -name '[!.]*' -type f -exec rm -f '{}' \; \)
+ cp -r doc/manual '$(MAKEWEBDIR)'
+ @echo 'Status of $(MAKEWEBDIR) repo:' && cd '$(MAKEWEBDIR)' \
+ && cvs -q -n update | grep -v '^M ' \
+ && echo '- cvs add <new files>' \
+ && echo '- cvs remove <deleted files>' \
+ && echo '- cvs commit' \
+ && echo '- cvs tag make-$(subst .,-,$(VERSION))'
+
+## ------------------------- ##
+## Make release targets. ##
+## ------------------------- ##
+
+.PHONY: tag-release
+tag-release:
+ case '$(VERSION)' in \
+ (*.*.9*) message=" candidate" ;; \
+ (*) message= ;; \
+ esac; \
+ $(GIT) tag -m "GNU Make release$$message $(VERSION)" -u '$(GPG_FINGERPRINT)' '$(VERSION)'
+
+## ------------------------- ##
+## GNU FTP upload artifacts. ##
+## ------------------------- ##
+
+# This target creates the upload artifacts.
+# Sign it with my key. If you don't have my key/passphrase then sorry,
+# you're SOL! :)
+
+GPG = gpg
+GPGFLAGS = -u $(GPG_FINGERPRINT)
+
+DIST_ARCHIVES_SIG = $(addsuffix .sig,$(DIST_ARCHIVES))
+DIST_ARCHIVES_DIRECTIVE = $(addsuffix .directive.asc,$(DIST_ARCHIVES))
+
+# A simple rule to test signing, etc.
+.PHONY: distsign
+distsign: $(DIST_ARCHIVES_SIG) $(DIST_ARCHIVES_DIRECTIVE)
+
+%.sig : %
+ @echo "Signing file '$<':"
+ $(GPG) $(GPGFLAGS) -o "$@" -b "$<"
+
+%.directive.asc: %
+ @echo "Creating directive file '$@':"
+ @( \
+ echo 'version: 1.1'; \
+ echo 'directory: make'; \
+ echo 'filename: $*'; \
+ echo 'comment: Official upload of GNU make version $(VERSION)'; \
+ ) > "$*.directive"
+ $(GPG) $(GPGFLAGS) -o "$@" --clearsign "$*.directive"
+ @rm -f "$*.directive"
+
+# Upload the artifacts
+
+FTPPUT = ncftpput
+gnu-upload-host = ftp-upload.gnu.org
+gnu-upload-dir = /incoming
+
+
+UPLOADS = upload-alpha upload-ftp
+.PHONY: $(UPLOADS)
+$(UPLOADS): $(DIST_ARCHIVES) $(DIST_ARCHIVES_SIG) $(DIST_ARCHIVES_DIRECTIVE)
+ $(FTPPUT) "$(gnu-upload-host)" "$(gnu-upload-dir)/$(@:upload-%=%)" $^
+
+
+# Rebuild Makefile.in if this file is modifed.
+Makefile.in: maintMakefile
+
+# Copyright (C) 1997-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/make.1 b/make.1
new file mode 100644
index 0000000..d4bd284
--- /dev/null
+++ b/make.1
@@ -0,0 +1,381 @@
+.TH MAKE 1 "28 February 2016" "GNU" "User Commands"
+.SH NAME
+make \- GNU make utility to maintain groups of programs
+.SH SYNOPSIS
+.B make
+[\fIOPTION\fR]... [\fITARGET\fR]...
+.SH DESCRIPTION
+.LP
+The
+.I make
+utility will determine automatically which pieces of a large program need to
+be recompiled, and issue the commands to recompile them. The manual describes
+the GNU implementation of
+.BR make ,
+which was written by Richard Stallman and Roland McGrath, and is currently
+maintained by Paul Smith. Our examples show C programs, since they are very
+common, but you can use
+.B make
+with any programming language whose compiler can be run with a shell command.
+In fact,
+.B make
+is not limited to programs. You can use it to describe any task where some
+files must be updated automatically from others whenever the others change.
+.LP
+To prepare to use
+.BR make ,
+you must write a file called the
+.I makefile
+that describes the relationships among files in your program, and the states
+the commands for updating each file. In a program, typically the executable
+file is updated from object files, which are in turn made by compiling source
+files.
+.LP
+Once a suitable makefile exists, each time you change some source files,
+this simple shell command:
+.sp 1
+.RS
+.B make
+.RE
+.sp 1
+suffices to perform all necessary recompilations.
+The
+.B make
+program uses the makefile description and the last-modification times of the
+files to decide which of the files need to be updated. For each of those
+files, it issues the commands recorded in the makefile.
+.LP
+.B make
+executes commands in the
+.I makefile
+to update one or more target
+.IR names ,
+where
+.I name
+is typically a program.
+If no
+.B \-f
+option is present,
+.B make
+will look for the makefiles
+.IR GNUmakefile ,
+.IR makefile ,
+and
+.IR Makefile ,
+in that order.
+.LP
+Normally you should call your makefile either
+.I makefile
+or
+.IR Makefile .
+(We recommend
+.I Makefile
+because it appears prominently near the beginning of a directory
+listing, right near other important files such as
+.IR README .)
+The first name checked,
+.IR GNUmakefile ,
+is not recommended for most makefiles. You should use this name if you have a
+makefile that is specific to GNU
+.BR make ,
+and will not be understood by other versions of
+.BR make .
+If
+.I makefile
+is '\-', the standard input is read.
+.LP
+.B make
+updates a target if it depends on prerequisite files
+that have been modified since the target was last modified,
+or if the target does not exist.
+.SH OPTIONS
+.sp 1
+.TP 0.5i
+\fB\-b\fR, \fB\-m\fR
+These options are ignored for compatibility with other versions of
+.BR make .
+.TP 0.5i
+\fB\-B\fR, \fB\-\-always\-make\fR
+Unconditionally make all targets.
+.TP 0.5i
+\fB\-C\fR \fIdir\fR, \fB\-\-directory\fR=\fIdir\fR
+Change to directory
+.I dir
+before reading the makefiles or doing anything else.
+If multiple
+.B \-C
+options are specified, each is interpreted relative to the
+previous one:
+.BR "\-C " /
+.BR "\-C " etc
+is equivalent to
+.BR "\-C " /etc.
+This is typically used with recursive invocations of
+.BR make .
+.TP 0.5i
+.B \-d
+Print debugging information in addition to normal processing.
+The debugging information says which files are being considered for
+remaking, which file-times are being compared and with what results,
+which files actually need to be remade, which implicit rules are
+considered and which are applied---everything interesting about how
+.B make
+decides what to do.
+.TP 0.5i
+.BI \-\-debug "[=FLAGS]"
+Print debugging information in addition to normal processing.
+If the
+.I FLAGS
+are omitted, then the behavior is the same as if
+.B \-d
+was specified.
+.I FLAGS
+may be
+.I a
+for all debugging output (same as using
+.BR \-d ),
+.I b
+for basic debugging,
+.I v
+for more verbose basic debugging,
+.I i
+for showing implicit rules,
+.I j
+for details on invocation of commands, and
+.I m
+for debugging while remaking makefiles. Use
+.I n
+to disable all previous debugging flags.
+.TP 0.5i
+\fB\-e\fR, \fB\-\-environment\-overrides\fR
+Give variables taken from the environment precedence
+over variables from makefiles.
+.TP 0.5i
+\fB\-f\fR \fIfile\fR, \fB\-\-file\fR=\fIfile\fR, \fB\-\-makefile\fR=\fIFILE\fR
+Use
+.I file
+as a makefile.
+.TP 0.5i
+\fB\-i\fR, \fB\-\-ignore\-errors\fR
+Ignore all errors in commands executed to remake files.
+.TP 0.5i
+\fB\-I\fR \fIdir\fR, \fB\-\-include\-dir\fR=\fIdir\fR
+Specifies a directory
+.I dir
+to search for included makefiles.
+If several
+.B \-I
+options are used to specify several directories, the directories are
+searched in the order specified.
+Unlike the arguments to other flags of
+.BR make ,
+directories given with
+.B \-I
+flags may come directly after the flag:
+.BI \-I dir
+is allowed, as well as
+.B \-I
+.IR dir .
+This syntax is allowed for compatibility with the C
+preprocessor's
+.B \-I
+flag.
+.TP 0.5i
+\fB\-j\fR [\fIjobs\fR], \fB\-\-jobs\fR[=\fIjobs\fR]
+Specifies the number of
+.I jobs
+(commands) to run simultaneously.
+If there is more than one
+.B \-j
+option, the last one is effective.
+If the
+.B \-j
+option is given without an argument,
+.BR make
+will not limit the number of jobs that can run simultaneously.
+.TP 0.5i
+\fB\-k\fR, \fB\-\-keep\-going\fR
+Continue as much as possible after an error.
+While the target that failed, and those that depend on it, cannot
+be remade, the other dependencies of these targets can be processed
+all the same.
+.TP 0.5i
+\fB\-l\fR [\fIload\fR], \fB\-\-load\-average\fR[=\fIload\fR]
+Specifies that no new jobs (commands) should be started if there are
+others jobs running and the load average is at least
+.I load
+(a floating-point number).
+With no argument, removes a previous load limit.
+.TP 0.5i
+\fB\-L\fR, \fB\-\-check\-symlink\-times\fR
+Use the latest mtime between symlinks and target.
+.TP 0.5i
+\fB\-n\fR, \fB\-\-just\-print\fR, \fB\-\-dry\-run\fR, \fB\-\-recon\fR
+Print the commands that would be executed, but do not execute them (except in
+certain circumstances).
+.TP 0.5i
+\fB\-o\fR \fIfile\fR, \fB\-\-old\-file\fR=\fIfile\fR, \fB\-\-assume\-old\fR=\fIfile\fR
+Do not remake the file
+.I file
+even if it is older than its dependencies, and do not remake anything
+on account of changes in
+.IR file .
+Essentially the file is treated as very old and its rules are ignored.
+.TP 0.5i
+\fB\-O\fR[\fItype\fR], \fB\-\-output\-sync\fR[=\fItype\fR]
+When running multiple jobs in parallel with \fB-j\fR, ensure the output of
+each job is collected together rather than interspersed with output from
+other jobs. If
+.I type
+is not specified or is
+.B target
+the output from the entire recipe for each target is grouped together. If
+.I type
+is
+.B line
+the output from each command line within a recipe is grouped together.
+If
+.I type
+is
+.B recurse
+output from an entire recursive make is grouped together. If
+.I type
+is
+.B none
+output synchronization is disabled.
+.TP 0.5i
+\fB\-p\fR, \fB\-\-print\-data\-base\fR
+Print the data base (rules and variable values) that results from
+reading the makefiles; then execute as usual or as otherwise
+specified.
+This also prints the version information given by the
+.B \-v
+switch (see below).
+To print the data base without trying to remake any files, use
+.IR "make \-p \-f/dev/null" .
+.TP 0.5i
+\fB\-q\fR, \fB\-\-question\fR
+``Question mode''.
+Do not run any commands, or print anything; just return an exit status
+that is zero if the specified targets are already up to date, nonzero
+otherwise.
+.TP 0.5i
+\fB\-r\fR, \fB\-\-no\-builtin\-rules\fR
+Eliminate use of the built\-in implicit rules.
+Also clear out the default list of suffixes for suffix rules.
+.TP 0.5i
+\fB\-R\fR, \fB\-\-no\-builtin\-variables\fR
+Don't define any built\-in variables.
+.TP 0.5i
+\fB\-s\fR, \fB\-\-silent\fR, \fB\-\-quiet\fR
+Silent operation; do not print the commands as they are executed.
+.TP 0.5i
+\fB\-S\fR, \fB\-\-no\-keep\-going\fR, \fB\-\-stop\fR
+Cancel the effect of the
+.B \-k
+option.
+This is never necessary except in a recursive
+.B make
+where
+.B \-k
+might be inherited from the top-level
+.B make
+via MAKEFLAGS or if you set
+.B \-k
+in MAKEFLAGS in your environment.
+.TP 0.5i
+\fB\-t\fR, \fB\-\-touch\fR
+Touch files (mark them up to date without really changing them)
+instead of running their commands.
+This is used to pretend that the commands were done, in order to fool
+future invocations of
+.BR make .
+.TP 0.5i
+.B \-\-trace
+Information about the disposition of each target is printed (why the target is
+being rebuilt and what commands are run to rebuild it).
+.TP 0.5i
+\fB\-v\fR, \fB\-\-version\fR
+Print the version of the
+.B make
+program plus a copyright, a list of authors and a notice that there
+is no warranty.
+.TP 0.5i
+\fB\-w\fR, \fB\-\-print\-directory\fR
+Print a message containing the working directory
+before and after other processing.
+This may be useful for tracking down errors from complicated nests of
+recursive
+.B make
+commands.
+.TP 0.5i
+.B \-\-no\-print\-directory
+Turn off
+.BR \-w ,
+even if it was turned on implicitly.
+.TP 0.5i
+\fB\-W\fR \fIfile\fR, \fB\-\-what\-if\fR=\fIfile\fR, \fB\-\-new\-file\fR=\fIfile\fR, \fB\-\-assume\-new\fR=\fIfile\fR
+Pretend that the target
+.I file
+has just been modified.
+When used with the
+.B \-n
+flag, this shows you what would happen if you were to modify that file.
+Without
+.BR \-n ,
+it is almost the same as running a
+.I touch
+command on the given file before running
+.BR make ,
+except that the modification time is changed only in the imagination of
+.BR make .
+.TP 0.5i
+.B \-\-warn\-undefined\-variables
+Warn when an undefined variable is referenced.
+.SH "EXIT STATUS"
+GNU
+.B make
+exits with a status of zero if all makefiles were successfully parsed
+and no targets that were built failed. A status of one will be returned
+if the
+.B \-q
+flag was used and
+.B make
+determines that a target needs to be rebuilt. A status of two will be
+returned if any errors were encountered.
+.SH "SEE ALSO"
+The full documentation for
+.B make
+is maintained as a Texinfo manual. If the
+.B info
+and
+.B make
+programs are properly installed at your site, the command
+.IP
+.B info make
+.PP
+should give you access to the complete manual.
+.SH BUGS
+See the chapter ``Problems and Bugs'' in
+.IR "The GNU Make Manual" .
+.SH AUTHOR
+This manual page contributed by Dennis Morse of Stanford University.
+Further updates contributed by Mike Frysinger. It has been reworked by Roland
+McGrath. Maintained by Paul Smith.
+.SH "COPYRIGHT"
+Copyright \(co 1992-1993, 1996-2016 Free Software Foundation, Inc.
+This file is part of
+.IR "GNU make" .
+.LP
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+.LP
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+.LP
+You should have received a copy of the GNU General Public License along with
+this program. If not, see
+.IR http://www.gnu.org/licenses/ .
diff --git a/make.lnk b/make.lnk
new file mode 100644
index 0000000..0d983bf
--- /dev/null
+++ b/make.lnk
@@ -0,0 +1,5 @@
+FROM LIB:cres.o "commands.o"+"job.o"+"dir.o"+"file.o"+"misc.o"+"main.o"+"read.o"+"remake.o"+"rule.o"+"implicit.o"+"default.o"+"variable.o"+"expand.o"+"function.o"+"vpath.o"+"version.o"+"ar.o"+"arscan.o"+"signame.o"+"remote-stub.o"+"getopt.o"+"getopt1.o"+"alloca.o"+"amiga.o"+"hash.o"+"strcache.o"+"output.o"
+TO "make.new"
+LIB glob/glob.lib LIB:sc.lib LIB:amiga.lib
+QUIET
+
diff --git a/make_msvc_net2003.sln b/make_msvc_net2003.sln
new file mode 100644
index 0000000..e993896
--- /dev/null
+++ b/make_msvc_net2003.sln
@@ -0,0 +1,21 @@
+Microsoft Visual Studio Solution File, Format Version 8.00
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "make_msvc.net2003", "make_msvc_net2003.vcproj", "{E96B5060-3240-4723-91C9-E64F1C877A04}"
+ ProjectSection(ProjectDependencies) = postProject
+ EndProjectSection
+EndProject
+Global
+ GlobalSection(SolutionConfiguration) = preSolution
+ Debug = Debug
+ Release = Release
+ EndGlobalSection
+ GlobalSection(ProjectConfiguration) = postSolution
+ {E96B5060-3240-4723-91C9-E64F1C877A04}.Debug.ActiveCfg = Debug|Win32
+ {E96B5060-3240-4723-91C9-E64F1C877A04}.Debug.Build.0 = Debug|Win32
+ {E96B5060-3240-4723-91C9-E64F1C877A04}.Release.ActiveCfg = Release|Win32
+ {E96B5060-3240-4723-91C9-E64F1C877A04}.Release.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ EndGlobalSection
+ GlobalSection(ExtensibilityAddIns) = postSolution
+ EndGlobalSection
+EndGlobal
diff --git a/make_msvc_net2003.vcproj b/make_msvc_net2003.vcproj
new file mode 100644
index 0000000..bcc2e8b
--- /dev/null
+++ b/make_msvc_net2003.vcproj
@@ -0,0 +1,340 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+ ProjectType="Visual C++"
+ Version="7.10"
+ Name="make_msvc.net2003"
+ ProjectGUID="{E96B5060-3240-4723-91C9-E64F1C877A04}"
+ Keyword="Win32Proj">
+ <Platforms>
+ <Platform
+ Name="Win32"/>
+ </Platforms>
+ <Configurations>
+ <Configuration
+ Name="Debug|Win32"
+ OutputDirectory="Debug"
+ IntermediateDirectory="Debug"
+ ConfigurationType="1"
+ CharacterSet="2">
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories=".;w32/include;glob"
+ PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;HAVE_CONFIG_H=1;WINDOWS32=1"
+ MinimalRebuild="TRUE"
+ BasicRuntimeChecks="3"
+ RuntimeLibrary="1"
+ ForceConformanceInForLoopScope="TRUE"
+ UsePrecompiledHeader="0"
+ WarningLevel="4"
+ SuppressStartupBanner="TRUE"
+ Detect64BitPortabilityProblems="FALSE"
+ DebugInformationFormat="4"/>
+ <Tool
+ Name="VCCustomBuildTool"/>
+ <Tool
+ Name="VCLinkerTool"
+ OutputFile="$(OutDir)/make_msvc.net2003.exe"
+ LinkIncremental="2"
+ GenerateDebugInformation="TRUE"
+ ProgramDatabaseFile="$(OutDir)/make_msvc.net2003.pdb"
+ SubSystem="1"
+ TargetMachine="1"/>
+ <Tool
+ Name="VCMIDLTool"/>
+ <Tool
+ Name="VCPostBuildEventTool"/>
+ <Tool
+ Name="VCPreBuildEventTool"
+ Description="Copying config.h.W32 to config.h"
+ CommandLine="if not exist config.h copy config.h.W32 config.h"/>
+ <Tool
+ Name="VCPreLinkEventTool"/>
+ <Tool
+ Name="VCResourceCompilerTool"/>
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"/>
+ <Tool
+ Name="VCXMLDataGeneratorTool"/>
+ <Tool
+ Name="VCWebDeploymentTool"/>
+ <Tool
+ Name="VCManagedWrapperGeneratorTool"/>
+ <Tool
+ Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+ </Configuration>
+ <Configuration
+ Name="Release|Win32"
+ OutputDirectory="Release"
+ IntermediateDirectory="Release"
+ ConfigurationType="1"
+ CharacterSet="2">
+ <Tool
+ Name="VCCLCompilerTool"
+ AdditionalIncludeDirectories=".;w32/include;glob"
+ PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;HAVE_CONFIG_H=1;WINDOWS32=1"
+ RuntimeLibrary="0"
+ ForceConformanceInForLoopScope="TRUE"
+ UsePrecompiledHeader="0"
+ WarningLevel="4"
+ Detect64BitPortabilityProblems="FALSE"
+ DebugInformationFormat="3"/>
+ <Tool
+ Name="VCCustomBuildTool"/>
+ <Tool
+ Name="VCLinkerTool"
+ OutputFile="$(OutDir)/make_msvc.net2003.exe"
+ LinkIncremental="1"
+ GenerateDebugInformation="TRUE"
+ SubSystem="1"
+ OptimizeReferences="2"
+ EnableCOMDATFolding="2"
+ TargetMachine="1"/>
+ <Tool
+ Name="VCMIDLTool"/>
+ <Tool
+ Name="VCPostBuildEventTool"/>
+ <Tool
+ Name="VCPreBuildEventTool"
+ Description="Copying config.h.W32 to config.h"
+ CommandLine="if not exist config.h copy config.h.W32 config.h"/>
+ <Tool
+ Name="VCPreLinkEventTool"/>
+ <Tool
+ Name="VCResourceCompilerTool"/>
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"/>
+ <Tool
+ Name="VCXMLDataGeneratorTool"/>
+ <Tool
+ Name="VCWebDeploymentTool"/>
+ <Tool
+ Name="VCManagedWrapperGeneratorTool"/>
+ <Tool
+ Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+ </Configuration>
+ </Configurations>
+ <References>
+ </References>
+ <Files>
+ <Filter
+ Name="src"
+ Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
+ UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
+ <File
+ RelativePath=".\ar.c">
+ </File>
+ <File
+ RelativePath=".\arscan.c">
+ </File>
+ <File
+ RelativePath=".\commands.c">
+ </File>
+ <File
+ RelativePath=".\default.c">
+ </File>
+ <File
+ RelativePath=".\dir.c">
+ </File>
+ <File
+ RelativePath=".\expand.c">
+ </File>
+ <File
+ RelativePath=".\file.c">
+ </File>
+ <File
+ RelativePath=".\function.c">
+ </File>
+ <File
+ RelativePath=".\getloadavg.c">
+ </File>
+ <File
+ RelativePath=".\getopt.c">
+ </File>
+ <File
+ RelativePath=".\getopt1.c">
+ </File>
+
+ <File
+ RelativePath=".\guile.c">
+ </File>
+
+ <File
+ RelativePath=".\hash.c">
+ </File>
+ <File
+ RelativePath=".\strcache.c">
+ </File>
+ <File
+ RelativePath=".\implicit.c">
+ </File>
+ <File
+ RelativePath=".\job.c">
+ </File>
+ <File
+ RelativePath=".\load.c">
+ </File>
+ <File
+ RelativePath=".\output.c">
+ </File>
+ <File
+ RelativePath=".\main.c">
+ </File>
+ <File
+ RelativePath=".\misc.c">
+ </File>
+ <File
+ RelativePath=".\read.c">
+ </File>
+ <File
+ RelativePath=".\remake.c">
+ </File>
+ <File
+ RelativePath=".\remote-stub.c">
+ </File>
+ <File
+ RelativePath=".\rule.c">
+ </File>
+ <File
+ RelativePath=".\signame.c">
+ </File>
+ <File
+ RelativePath=".\variable.c">
+ </File>
+ <File
+ RelativePath=".\version.c">
+ </File>
+ <File
+ RelativePath=".\vpath.c">
+ </File>
+ <Filter
+ Name="w32"
+ Filter="">
+ <File
+ RelativePath=".\w32\compat\dirent.c">
+ </File>
+ <File
+ RelativePath=".\w32\compat\posixfcn.c">
+ </File>
+ <File
+ RelativePath=".\w32\subproc\misc.c">
+ <FileConfiguration
+ Name="Debug|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ ObjectFile="$(IntDir)/$(InputName)1.obj"/>
+ </FileConfiguration>
+ <FileConfiguration
+ Name="Release|Win32">
+ <Tool
+ Name="VCCLCompilerTool"
+ ObjectFile="$(IntDir)/$(InputName)1.obj"/>
+ </FileConfiguration>
+ </File>
+ <File
+ RelativePath=".\w32\pathstuff.c">
+ </File>
+ <File
+ RelativePath=".\w32\w32os.c">
+ </File>
+ <File
+ RelativePath=".\w32\subproc\sub_proc.c">
+ </File>
+ <File
+ RelativePath=".\w32\subproc\w32err.c">
+ </File>
+ </Filter>
+ <Filter
+ Name="glob"
+ Filter="">
+ <File
+ RelativePath=".\glob\fnmatch.c">
+ </File>
+ <File
+ RelativePath=".\glob\glob.c">
+ </File>
+ </Filter>
+ </Filter>
+ <Filter
+ Name="include"
+ Filter="h;hpp;hxx;hm;inl;inc;xsd"
+ UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
+ <File
+ RelativePath=".\commands.h">
+ </File>
+ <File
+ RelativePath=".\config.h">
+ </File>
+ <File
+ RelativePath=".\debug.h">
+ </File>
+ <File
+ RelativePath=".\dep.h">
+ </File>
+ <File
+ RelativePath=".\filedef.h">
+ </File>
+ <File
+ RelativePath=".\getopt.h">
+ </File>
+ <File
+ RelativePath=".\gettext.h">
+ </File>
+ <File
+ RelativePath=".\gmk-default.h">
+ </File>
+ <File
+ RelativePath=".\hash.h">
+ </File>
+ <File
+ RelativePath=".\job.h">
+ </File>
+ <File
+ RelativePath=".\output.h">
+ </File>
+ <File
+ RelativePath=".\makeint.h">
+ </File>
+ <File
+ RelativePath=".\rule.h">
+ </File>
+ <File
+ RelativePath=".\variable.h">
+ </File>
+ <File
+ RelativePath=".\vmsdir.h">
+ </File>
+ <Filter
+ Name="w32"
+ Filter="">
+ <File
+ RelativePath=".\w32\include\dirent.h">
+ </File>
+ <File
+ RelativePath=".\w32\include\pathstuff.h">
+ </File>
+ <File
+ RelativePath=".\w32\subproc\proc.h">
+ </File>
+ <File
+ RelativePath=".\w32\include\sub_proc.h">
+ </File>
+ <File
+ RelativePath=".\w32\include\w32err.h">
+ </File>
+ </Filter>
+ <Filter
+ Name="glob"
+ Filter="">
+ <File
+ RelativePath=".\glob\fnmatch.h">
+ </File>
+ <File
+ RelativePath=".\glob\glob.h">
+ </File>
+ </Filter>
+ </Filter>
+ </Files>
+ <Globals>
+ </Globals>
+</VisualStudioProject>
diff --git a/makefile.com b/makefile.com
new file mode 100644
index 0000000..f579695
--- /dev/null
+++ b/makefile.com
@@ -0,0 +1,166 @@
+$!
+$! Makefile.com - builds GNU Make for VMS
+$!
+$! P1 = LIST will provide compiler listings.
+$! P2 = DEBUG will build an image with debug information
+$! P3 = WALL will enable all warning messages (some are suppressed since
+$! one macro intentionally causes an error condition)
+$!
+$! In case of problems with the install you might contact me at
+$! zinser@decus.de (preferred) or zinser@sysdev.deutsche-boerse.com
+$
+$! hb
+$! But don't ask Martin Zinser about the lines, I added/changed.
+$! In case of an error do some cleanup
+$ on error then $ goto cleanup
+$! in case somebody set up her/his own symbol for cc
+$ set symbol/scope=(nolocal,noglobal)
+$!
+$! Just some general constants...
+$!
+$ true = 1
+$ false = 0
+$ tmpnam = "temp_" + f$getjpi("","pid")
+$ tt = tmpnam + ".txt"
+$ tc = tmpnam + ".c"
+$!
+$! Look for the compiler used
+$!
+$ lval = ""
+$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
+$ then
+$ if f$trnlnm("SYS").eqs."" then def/nolog sys sys$library:
+$ ccopt = ""
+$ else
+$ ccopt = "/decc/prefix=(all,except=(globfree,glob))"
+$ if f$trnlnm("SYS").eqs.""
+$ then
+$ if f$trnlnm("DECC$LIBRARY_INCLUDE").nes.""
+$ then
+$ define sys decc$library_include:
+$ else
+$ if f$search("SYS$COMMON:[DECC$LIB.REFERENCE]DECC$RTLDEF.DIR").nes."" -
+ then lval = "SYS$COMMON:[DECC$LIB.REFERENCE.DECC$RTLDEF],"
+$ if f$search("SYS$COMMON:[DECC$LIB.REFERENCE]SYS$STARLET_C.DIR").nes."" -
+ then lval = lval+"SYS$COMMON:[DECC$LIB.REFERENCE.SYS$STARLET_C],"
+$ lval=lval+"SYS$LIBRARY:"
+$ define sys 'lval
+$ endif
+$ endif
+$ endif
+$!
+$!
+$ if (p1 .eqs. "LIST")
+$ then
+$ ccopt = ccopt + "/list/show=(expan,inclu)"
+$ endif
+$!
+$! Should we build a debug image
+$!
+$ if (p2.eqs."DEBUG")
+$ then
+$ ccopt = ccopt + "/noopt/debug"
+$ lopt = "/debug"
+$ else
+$ lopt = ""
+$ endif
+$!
+$! Do we want to see all warnings
+$!
+$ if (p3.nes."WALL")
+$ then
+$ gosub check_cc_qual
+$ endif
+$ filelist = "alloca ar arscan commands default dir expand file function " + -
+ "guile hash implicit job load main misc read remake " + -
+ "remote-stub rule output signame variable version " + -
+ "vmsfunctions vmsify vpath vms_progname vms_exit " + -
+ "vms_export_symbol [.glob]glob [.glob]fnmatch getopt1 " + -
+ "getopt strcache"
+$!
+$ copy config.h-vms config.h
+$ n=0
+$ open/write optf make.opt
+$ loop:
+$ cfile = f$elem(n," ",filelist)
+$ if cfile .eqs. " " then goto linkit
+$ write sys$output "Compiling ''cfile'..."
+$ call compileit 'cfile'
+$ n = n + 1
+$ goto loop
+$ linkit:
+$ close optf
+$ link/exe=make make.opt/opt'lopt
+$ goto cleanup
+$
+$ cleanup:
+$ if f$trnlnm("SYS").nes."" then $ deassign sys
+$ if f$trnlnm("OPTF").nes."" then $ close optf
+$ if f$search("make.opt").nes."" then $ del make.opt;*
+$ exit
+$!
+$!-----------------------------------------------------------------------------
+$!
+$! Check if this is a define relating to the properties of the C/C++
+$! compiler
+$!
+$CHECK_CC_QUAL:
+$ open/write tmpc 'tc
+$ ccqual = "/warn=(disable=questcompare)"
+$ write tmpc "#include <stdio.h>"
+$ write tmpc "unsigned int i = 1;"
+$ write tmpc "int main(){"
+$ write tmpc "if (i < 0){printf(""Mission impossible\n"");}}"
+$ close tmpc
+$ gosub cc_qual_check
+$ return
+$!
+$!-----------------------------------------------------------------------------
+$!
+$! Check for properties of C/C++ compiler
+$!
+$CC_QUAL_CHECK:
+$ cc_qual = false
+$ set message/nofac/noident/nosever/notext
+$ cc 'ccqual' 'tmpnam'
+$ if $status then cc_qual = true
+$ set message/fac/ident/sever/text
+$ delete/nolog 'tmpnam'.*;*
+$ if cc_qual then ccopt = ccopt + ccqual
+$ return
+$!-----------------------------------------------------------------------------
+$!
+$ compileit : subroutine
+$ ploc = f$locate("]",p1)
+$! filnam = p1
+$ if ploc .lt. f$length(p1)
+$ then
+$ objdir = f$extract(0, ploc+1, p1)
+$ write optf p1
+$ else
+$ objdir := []
+$ write optf objdir+p1
+$ endif
+$ cc'ccopt'/nested=none/include=([],[.glob])/obj='objdir' -
+ /define=("allocated_variable_expand_for_file=alloc_var_expand_for_file",-
+ "unlink=remove","HAVE_CONFIG_H","VMS") -
+ 'p1'
+$ exit
+$ endsubroutine : compileit
+$!
+$!-----------------------------------------------------------------------------
+$!Copyright (C) 1996-2016 Free Software Foundation, Inc.
+$!This file is part of GNU Make.
+$!
+$!GNU Make is free software; you can redistribute it and/or modify it under
+$!the terms of the GNU General Public License as published by the Free Software
+$!Foundation; either version 3 of the License, or (at your option) any later
+$!version.
+$!
+$!GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+$!WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+$!FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+$!details.
+$!
+$!You should have received a copy of the GNU General Public License along with
+$!this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/makefile.vms b/makefile.vms
new file mode 100644
index 0000000..37702d5
--- /dev/null
+++ b/makefile.vms
@@ -0,0 +1,180 @@
+# -*-Makefile-*- to build GNU make on VMS
+#
+# Copyright (C) 1996-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+# VMS extensions from GNU Make 3.60 imported by
+# Klaus Kämpf (kkaempf@rmi.de)
+# Modified for version 3.78.1 by Hartmut.Becker@compaq.com.
+# Modified for version 3.80 by zinser@decus.de
+# Modified for versions 3.81, 3.99.90 by Hartmut Becker
+
+CC = cc
+CP = copy
+
+%.obj: %.c
+ $(CC) $(CFLAGS)/obj=$@ $<
+#
+# Makefile for GNU Make
+#
+
+ifeq ($(CC),cc)
+cinclude = /nested=none/include=([],[.glob])
+cprefix = /prefix=(all,except=(glob,globfree))
+cwarn = /standard=relaxed/warn=(disable=questcompare)
+CFLAGS = $(defines) $(cinclude)$(cprefix)$(cwarn)
+else
+CFLAGS = $(defines) $(cinclude)
+endif
+#LDFLAGS = /deb
+LDFLAGS =
+
+ifeq ($(CC),cc)
+defines = /define=("unlink=remove","HAVE_CONFIG_H","VMS","allocated_variable_expand_for_file=alloc_var_expand_for_file")
+else
+ifeq ($(ARCH),VAX)
+defines = /define=("HAVE_CONFIG_H","GCC_IS_NATIVE","VAX")
+else
+defines = /define=("HAVE_CONFIG_H","GCC_IS_NATIVE")
+endif
+endif
+
+LOAD_AVG = /define="NO_LDAV"
+
+# If you don't want archive support, comment these out.
+ARCHIVES = ,ar.obj,arscan.obj
+ARCHIVES_SRC = ar.c arscan.c
+
+# If your system needs extra libraries loaded in, define them here.
+# System V probably need -lPW for alloca.
+# if on vax, uncomment the following line
+#LOADLIBES = ,c.opt/opt
+ifeq ($(CC),cc)
+#LOADLIBES =,sys$$library:vaxcrtl.olb/lib
+CRT0 =
+else
+LOADLIBES =,gnu_cc_library:libgcc.olb/lib
+endif
+
+# If your system doesn't have alloca, or the one provided is bad,
+# get it from the Emacs distribution and define these.
+#ALLOCA = ,alloca.obj
+#ALLOCASRC = alloca.c
+
+# If there are remote execution facilities defined,
+# enable them with switches here (see remote-*.c).
+REMOTE =
+
+# Any extra object files your system needs.
+extras = ,signame.obj,remote-stub.obj,vmsfunctions.obj,vmsify.obj
+#,directory.obj
+# as an alternative:
+glob = ,[.glob]glob.obj,[.glob]fnmatch.obj
+getopt = ,getopt.obj,getopt1.obj
+# Directory to install 'make' in.
+bindir = []
+# Directory to install the man page in.
+mandir = []
+# Number to put on the man page filename.
+manext = 1
+
+guile = ,guile.obj
+
+objs = commands.obj,job.obj,output.obj,dir.obj,file.obj,misc.obj,hash.obj,\
+ load.obj,main.obj,read.obj,remake.obj,rule.obj,implicit.obj,\
+ default.obj,variable.obj,expand.obj,function.obj,strcache.obj,\
+ vpath.obj,version.obj,vms_progname.obj,vms_exit.obj,\
+ vms_export_symbol.obj$(guile)$(ARCHIVES)$(extras)$(getopt)$(glob)
+
+srcs = commands.c job.c output.c dir.c file.c misc.c guile.c hash.c \
+ load.c main.c read.c remake.c rule.c implicit.c \
+ default.c variable.c expand.c function.c strcache.c \
+ vpath.c version.c vmsfunctions.c vmsify.c vms_progname.c vms_exit.c \
+ vms_export_symbol.c $(ARCHIVES_SRC) $(ALLOCASRC) \
+ commands.h dep.h filedef.h job.h output.h makeint.h rule.h variable.h
+
+
+.PHONY: all doc
+all: config.h make.exe
+
+doc: make.info make.dvi
+
+
+make.exe: $(objs)
+ $(LD)$(LDFLAGS)/exe=$@ $^$(LOADLIBES)$(CRT0)
+
+.PHONY: clean realclean
+clean:
+ -purge [...]
+ -$(RM) make.exe;,*.obj;
+ -$(RM) [.glob]*.obj;
+
+ar.obj: ar.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h dep.h \
+ [.glob]fnmatch.h
+arscan.obj: arscan.c makeint.h config.h gnumake.h gettext.h
+commands.obj: commands.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h dep.h variable.h job.h output.h commands.h
+default.obj: default.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h variable.h rule.h dep.h job.h output.h commands.h
+dir.obj: dir.c makeint.h config.h gnumake.h gettext.h hash.h filedef.h \
+ dep.h [.glob]glob.h
+expand.obj: expand.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h job.h output.h commands.h variable.h rule.h
+file.obj: file.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h \
+ dep.h job.h output.h commands.h variable.h debug.h
+[.glob]fnmatch.obj: [.glob]fnmatch.c config.h [.glob]fnmatch.h
+function.obj: function.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h variable.h dep.h job.h output.h commands.h debug.h
+getopt.obj: getopt.c config.h gettext.h getopt.h
+getopt1.obj: getopt1.c config.h getopt.h
+[.glob]glob.obj: [.glob]glob.c config.h [.glob]fnmatch.h [.glob]glob.h
+guile.obj: guile.c makeint.h config.h gnumake.h gettext.h
+hash.obj: hash.c makeint.h config.h gnumake.h gettext.h hash.h
+implicit.obj: implicit.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h rule.h dep.h debug.h variable.h job.h output.h commands.h
+job.obj: job.c makeint.h config.h gnumake.h gettext.h job.h output.h debug.h \
+ filedef.h hash.h commands.h variable.h debug.h vmsjobs.c
+load.obj: load.c makeint.h config.h gnumake.h gettext.h
+main.obj: main.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h \
+ dep.h variable.h job.h output.h commands.h rule.h debug.h getopt.h
+misc.obj: misc.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h \
+ dep.h debug.h
+output.obj: output.c makeint.h config.h gnumake.h gettext.h job.h output.h
+read.obj: read.c makeint.h config.h gnumake.h gettext.h [.glob]glob.h \
+ filedef.h hash.h dep.h job.h output.h commands.h variable.h rule.h \
+ debug.h
+remake.obj: remake.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h job.h output.h commands.h dep.h variable.h debug.h
+remote-stub.obj: remote-stub.c makeint.h config.h gnumake.h gettext.h \
+ filedef.h hash.h job.h output.h commands.h
+rule.obj: rule.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h \
+ dep.h job.h output.h commands.h variable.h rule.h
+signame.obj: signame.c makeint.h config.h gnumake.h gettext.h
+strcache.obj: strcache.c makeint.h config.h gnumake.h gettext.h hash.h
+variable.obj: variable.c makeint.h config.h gnumake.h gettext.h filedef.h \
+ hash.h dep.h job.h output.h commands.h variable.h rule.h
+version.obj: version.c config.h
+vmsfunctions.obj: vmsfunctions.c makeint.h config.h gnumake.h gettext.h \
+ debug.h job.h output.h vmsdir.h
+vmsify.obj: vmsify.c
+vpath.obj: vpath.c makeint.h config.h gnumake.h gettext.h filedef.h hash.h \
+ variable.h
+vms_progname.obj: vms_progname.c
+vms_exit.obj: vms_exit.c
+vms_export_symbol.obj: vms_export_symbol.c
+
+config.h: config.h-vms
+ $(CP) $< $@
diff --git a/makeint.h b/makeint.h
new file mode 100644
index 0000000..8f718eb
--- /dev/null
+++ b/makeint.h
@@ -0,0 +1,792 @@
+/* Miscellaneous global declarations and portability cruft for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* We use <config.h> instead of "config.h" so that a compilation
+ using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
+ (which it would do because makeint.h was found in $srcdir). */
+#include <config.h>
+#undef HAVE_CONFIG_H
+#define HAVE_CONFIG_H 1
+
+/* Specify we want GNU source code. This must be defined before any
+ system headers are included. */
+
+#define _GNU_SOURCE 1
+
+/* AIX requires this to be the first thing in the file. */
+#if HAVE_ALLOCA_H
+# include <alloca.h>
+#else
+# ifdef _AIX
+ #pragma alloca
+# else
+# if !defined(__GNUC__) && !defined(WINDOWS32)
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+# endif
+# endif
+# endif
+#endif
+
+/* Disable assert() unless we're a maintainer.
+ Some asserts are compute-intensive. */
+#ifndef MAKE_MAINTAINER_MODE
+# define NDEBUG 1
+#endif
+
+/* Include the externally-visible content.
+ Be sure to use the local one, and not one installed on the system.
+ Define GMK_BUILDING_MAKE for proper selection of dllexport/dllimport
+ declarations for MS-Windows. */
+#ifdef WINDOWS32
+# define GMK_BUILDING_MAKE
+#endif
+#include "gnumake.h"
+
+#ifdef CRAY
+/* This must happen before #include <signal.h> so
+ that the declaration therein is changed. */
+# define signal bsdsignal
+#endif
+
+/* If we're compiling for the dmalloc debugger, turn off string inlining. */
+#if defined(HAVE_DMALLOC_H) && defined(__GNUC__)
+# define __NO_STRING_INLINES
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <signal.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#ifdef HAVE_SYS_TIMEB_H
+/* SCO 3.2 "devsys 4.2" has a prototype for 'ftime' in <time.h> that bombs
+ unless <sys/timeb.h> has been included first. */
+# include <sys/timeb.h>
+#endif
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#include <errno.h>
+
+#ifndef errno
+extern int errno;
+#endif
+
+#ifdef __VMS
+/* In strict ANSI mode, VMS compilers should not be defining the
+ VMS macro. Define it here instead of a bulk edit for the correct code.
+ */
+# ifndef VMS
+# define VMS
+# endif
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+/* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get
+ POSIX.1 behavior with 'cc -YPOSIX', which predefines POSIX itself! */
+# if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS)
+# define POSIX 1
+# endif
+#endif
+
+/* Some systems define _POSIX_VERSION but are not really POSIX.1. */
+#if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386)))
+# undef POSIX
+#endif
+
+#if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE)
+# define POSIX 1
+#endif
+
+#ifndef RETSIGTYPE
+# define RETSIGTYPE void
+#endif
+
+#ifndef sigmask
+# define sigmask(sig) (1 << ((sig) - 1))
+#endif
+
+#ifndef HAVE_SA_RESTART
+# define SA_RESTART 0
+#endif
+
+#ifdef HAVE_VFORK_H
+# include <vfork.h>
+#endif
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+
+#ifndef PATH_MAX
+# ifndef POSIX
+# define PATH_MAX MAXPATHLEN
+# endif
+#endif
+#ifndef MAXPATHLEN
+# define MAXPATHLEN 1024
+#endif
+
+#ifdef PATH_MAX
+# define GET_PATH_MAX PATH_MAX
+# define PATH_VAR(var) char var[PATH_MAX]
+#else
+# define NEED_GET_PATH_MAX 1
+# define GET_PATH_MAX (get_path_max ())
+# define PATH_VAR(var) char *var = alloca (GET_PATH_MAX)
+unsigned int get_path_max (void);
+#endif
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
+#endif
+
+#ifndef USHRT_MAX
+# define USHRT_MAX 65535
+#endif
+
+/* Nonzero if the integer type T is signed.
+ Use <= to avoid GCC warnings about always-false expressions. */
+#define INTEGER_TYPE_SIGNED(t) ((t) -1 <= 0)
+
+/* The minimum and maximum values for the integer type T.
+ Use ~ (t) 0, not -1, for portability to 1's complement hosts. */
+#define INTEGER_TYPE_MINIMUM(t) \
+ (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))
+#define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t))
+
+#ifndef CHAR_MAX
+# define CHAR_MAX INTEGER_TYPE_MAXIMUM (char)
+#endif
+
+#ifdef STAT_MACROS_BROKEN
+# ifdef S_ISREG
+# undef S_ISREG
+# endif
+# ifdef S_ISDIR
+# undef S_ISDIR
+# endif
+#endif /* STAT_MACROS_BROKEN. */
+
+#ifndef S_ISREG
+# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
+#endif
+#ifndef S_ISDIR
+# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
+#endif
+
+#ifdef VMS
+# include <fcntl.h>
+# include <types.h>
+# include <unixlib.h>
+# include <unixio.h>
+# include <perror.h>
+/* Needed to use alloca on VMS. */
+# include <builtins.h>
+
+extern int vms_use_mcr_command;
+extern int vms_always_use_cmd_file;
+extern int vms_gnv_shell;
+extern int vms_comma_separator;
+extern int vms_legacy_behavior;
+extern int vms_unix_simulation;
+#endif
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# define __attribute__(x)
+# endif
+/* The __-protected variants of 'format' and 'printf' attributes
+ are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __format__ format
+# define __printf__ printf
+# endif
+#endif
+#define UNUSED __attribute__ ((unused))
+
+#if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__)
+# include <stdlib.h>
+# include <string.h>
+# define ANSI_STRING 1
+#else /* No standard headers. */
+# ifdef HAVE_STRING_H
+# include <string.h>
+# define ANSI_STRING 1
+# else
+# include <strings.h>
+# endif
+# ifdef HAVE_MEMORY_H
+# include <memory.h>
+# endif
+# ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+# else
+void *malloc (int);
+void *realloc (void *, int);
+void free (void *);
+
+void abort (void) __attribute__ ((noreturn));
+void exit (int) __attribute__ ((noreturn));
+# endif /* HAVE_STDLIB_H. */
+
+#endif /* Standard headers. */
+
+/* These should be in stdlib.h. Make sure we have them. */
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+#endif
+#ifndef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif
+
+#ifndef ANSI_STRING
+
+/* SCO Xenix has a buggy macro definition in <string.h>. */
+#undef strerror
+#if !defined(__DECC)
+char *strerror (int errnum);
+#endif
+
+#endif /* !ANSI_STRING. */
+#undef ANSI_STRING
+
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#define FILE_TIMESTAMP uintmax_t
+
+#if !defined(HAVE_STRSIGNAL)
+char *strsignal (int signum);
+#endif
+
+/* ISDIGIT offers the following features:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char.
+ - It's guaranteed to evaluate its argument exactly once.
+ NOTE! Make relies on this behavior, don't change it!
+ - It's typically faster.
+ POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
+ only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless
+ it's important to use the locale's definition of 'digit' even when the
+ host does not conform to POSIX. */
+#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
+
+/* Test if two strings are equal. Is this worthwhile? Should be profiled. */
+#define streq(a, b) \
+ ((a) == (b) || \
+ (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
+
+/* Test if two strings are equal, but match case-insensitively on systems
+ which have case-insensitive filesystems. Should only be used for
+ filenames! */
+#ifdef HAVE_CASE_INSENSITIVE_FS
+# define patheq(a, b) \
+ ((a) == (b) \
+ || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \
+ && (*(a) == '\0' || !strcasecmp ((a) + 1, (b) + 1))))
+#else
+# define patheq(a, b) streq(a, b)
+#endif
+
+#define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0)
+
+#if defined(__GNUC__) || defined(ENUM_BITFIELDS)
+# define ENUM_BITFIELD(bits) :bits
+#else
+# define ENUM_BITFIELD(bits)
+#endif
+
+/* Handle gettext and locales. */
+
+#if HAVE_LOCALE_H
+# include <locale.h>
+#else
+# define setlocale(category, locale)
+#endif
+
+#include <gettext.h>
+
+#define _(msgid) gettext (msgid)
+#define N_(msgid) gettext_noop (msgid)
+#define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
+
+/* This is needed for getcwd() and chdir(), on some W32 systems. */
+#if defined(HAVE_DIRECT_H)
+# include <direct.h>
+#endif
+
+#ifdef WINDOWS32
+# include <fcntl.h>
+# include <malloc.h>
+# define pipe(_p) _pipe((_p), 512, O_BINARY)
+# define kill(_pid,_sig) w32_kill((_pid),(_sig))
+/* MSVC and Watcom C don't have ftruncate. */
+# if defined(_MSC_VER) || defined(__WATCOMC__)
+# define ftruncate(_fd,_len) _chsize(_fd,_len)
+# endif
+/* MinGW64 doesn't have _S_ISDIR. */
+# ifndef _S_ISDIR
+# define _S_ISDIR(m) S_ISDIR(m)
+# endif
+
+void sync_Path_environment (void);
+int w32_kill (pid_t pid, int sig);
+int find_and_set_default_shell (const char *token);
+
+/* indicates whether or not we have Bourne shell */
+extern int no_default_sh_exe;
+
+/* is default_shell unixy? */
+extern int unixy_shell;
+
+/* We don't have a preferred fixed value for LOCALEDIR. */
+# ifndef LOCALEDIR
+# define LOCALEDIR NULL
+# endif
+
+/* Include only the minimal stuff from windows.h. */
+# define WIN32_LEAN_AND_MEAN
+#endif /* WINDOWS32 */
+
+#define ANY_SET(_v,_m) (((_v)&(_m)) != 0)
+#define NONE_SET(_v,_m) (! ANY_SET ((_v),(_m)))
+
+#define MAP_NUL 0x0001
+#define MAP_BLANK 0x0002
+#define MAP_NEWLINE 0x0004
+#define MAP_COMMENT 0x0008
+#define MAP_SEMI 0x0010
+#define MAP_EQUALS 0x0020
+#define MAP_COLON 0x0040
+#define MAP_PERCENT 0x0080
+#define MAP_PIPE 0x0100
+#define MAP_DOT 0x0200
+#define MAP_COMMA 0x0400
+
+/* These are the valid characters for a user-defined function. */
+#define MAP_USERFUNC 0x2000
+/* This means not only a '$', but skip the variable reference. */
+#define MAP_VARIABLE 0x4000
+/* The set of characters which are directory separators is OS-specific. */
+#define MAP_DIRSEP 0x8000
+
+#ifdef VMS
+# define MAP_VMSCOMMA MAP_COMMA
+#else
+# define MAP_VMSCOMMA 0x0000
+#endif
+
+#define MAP_SPACE (MAP_BLANK|MAP_NEWLINE)
+
+/* Handle other OSs.
+ To overcome an issue parsing paths in a DOS/Windows environment when
+ built in a unix based environment, override the PATH_SEPARATOR_CHAR
+ definition unless being built for Cygwin. */
+#if defined(HAVE_DOS_PATHS) && !defined(__CYGWIN__)
+# undef PATH_SEPARATOR_CHAR
+# define PATH_SEPARATOR_CHAR ';'
+# define MAP_PATHSEP MAP_SEMI
+#elif !defined(PATH_SEPARATOR_CHAR)
+# if defined (VMS)
+# define PATH_SEPARATOR_CHAR (vms_comma_separator ? ',' : ':')
+# define MAP_PATHSEP (vms_comma_separator ? MAP_COMMA : MAP_SEMI)
+# else
+# define PATH_SEPARATOR_CHAR ':'
+# define MAP_PATHSEP MAP_COLON
+# endif
+#elif PATH_SEPARATOR_CHAR == ':'
+# define MAP_PATHSEP MAP_COLON
+#elif PATH_SEPARATOR_CHAR == ';'
+# define MAP_PATHSEP MAP_SEMI
+#elif PATH_SEPARATOR_CHAR == ','
+# define MAP_PATHSEP MAP_COMMA
+#else
+# error "Unknown PATH_SEPARATOR_CHAR"
+#endif
+
+#define STOP_SET(_v,_m) ANY_SET(stopchar_map[(unsigned char)(_v)],(_m))
+
+#define ISBLANK(c) STOP_SET((c),MAP_BLANK)
+#define ISSPACE(c) STOP_SET((c),MAP_SPACE)
+#define NEXT_TOKEN(s) while (ISSPACE (*(s))) ++(s)
+#define END_OF_TOKEN(s) while (! STOP_SET (*(s), MAP_SPACE|MAP_NUL)) ++(s)
+
+#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
+# define SET_STACK_SIZE
+#endif
+#ifdef SET_STACK_SIZE
+# include <sys/resource.h>
+extern struct rlimit stack_limit;
+#endif
+
+#include <glob.h>
+
+#define NILF ((floc *)0)
+
+#define CSTRLEN(_s) (sizeof (_s)-1)
+#define STRING_SIZE_TUPLE(_s) (_s), CSTRLEN(_s)
+
+/* The number of bytes needed to represent the largest integer as a string. */
+#define INTSTR_LENGTH CSTRLEN ("18446744073709551616")
+
+#define DEFAULT_TTYNAME "true"
+#ifdef HAVE_TTYNAME
+# define TTYNAME(_f) ttyname (_f)
+#else
+# define TTYNAME(_f) DEFAULT_TTYNAME
+#endif
+
+
+
+/* Specify the location of elements read from makefiles. */
+typedef struct
+ {
+ const char *filenm;
+ unsigned long lineno;
+ unsigned long offset;
+ } floc;
+
+const char *concat (unsigned int, ...);
+void message (int prefix, size_t length, const char *fmt, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+void error (const floc *flocp, size_t length, const char *fmt, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+void fatal (const floc *flocp, size_t length, const char *fmt, ...)
+ __attribute__ ((noreturn, __format__ (__printf__, 3, 4)));
+
+#define O(_t,_a,_f) _t((_a), 0, (_f))
+#define OS(_t,_a,_f,_s) _t((_a), strlen (_s), (_f), (_s))
+#define OSS(_t,_a,_f,_s1,_s2) _t((_a), strlen (_s1) + strlen (_s2), \
+ (_f), (_s1), (_s2))
+#define OSSS(_t,_a,_f,_s1,_s2,_s3) _t((_a), strlen (_s1) + strlen (_s2) + strlen (_s3), \
+ (_f), (_s1), (_s2), (_s3))
+#define ON(_t,_a,_f,_n) _t((_a), INTSTR_LENGTH, (_f), (_n))
+#define ONN(_t,_a,_f,_n1,_n2) _t((_a), INTSTR_LENGTH*2, (_f), (_n1), (_n2))
+
+#define OSN(_t,_a,_f,_s,_n) _t((_a), strlen (_s) + INTSTR_LENGTH, \
+ (_f), (_s), (_n))
+#define ONS(_t,_a,_f,_n,_s) _t((_a), INTSTR_LENGTH + strlen (_s), \
+ (_f), (_n), (_s))
+
+#define OUT_OF_MEM() O (fatal, NILF, _("virtual memory exhausted"))
+
+void die (int) __attribute__ ((noreturn));
+void pfatal_with_name (const char *) __attribute__ ((noreturn));
+void perror_with_name (const char *, const char *);
+#define xstrlen(_s) ((_s)==NULL ? 0 : strlen (_s))
+void *xmalloc (unsigned int);
+void *xcalloc (unsigned int);
+void *xrealloc (void *, unsigned int);
+char *xstrdup (const char *);
+char *xstrndup (const char *, unsigned int);
+char *find_next_token (const char **, unsigned int *);
+char *next_token (const char *);
+char *end_of_token (const char *);
+void collapse_continuations (char *);
+char *lindex (const char *, const char *, int);
+int alpha_compare (const void *, const void *);
+void print_spaces (unsigned int);
+char *find_percent (char *);
+const char *find_percent_cached (const char **);
+
+#ifndef NO_ARCHIVES
+int ar_name (const char *);
+void ar_parse_name (const char *, char **, char **);
+int ar_touch (const char *);
+time_t ar_member_date (const char *);
+
+typedef long int (*ar_member_func_t) (int desc, const char *mem, int truncated,
+ long int hdrpos, long int datapos,
+ long int size, long int date, int uid,
+ int gid, unsigned int mode,
+ const void *arg);
+
+long int ar_scan (const char *archive, ar_member_func_t function, const void *arg);
+int ar_name_equal (const char *name, const char *mem, int truncated);
+#ifndef VMS
+int ar_member_touch (const char *arname, const char *memname);
+#endif
+#endif
+
+int dir_file_exists_p (const char *, const char *);
+int file_exists_p (const char *);
+int file_impossible_p (const char *);
+void file_impossible (const char *);
+const char *dir_name (const char *);
+void print_dir_data_base (void);
+void dir_setup_glob (glob_t *);
+void hash_init_directories (void);
+
+void define_default_variables (void);
+void undefine_default_variables (void);
+void set_default_suffixes (void);
+void install_default_suffix_rules (void);
+void install_default_implicit_rules (void);
+
+void build_vpath_lists (void);
+void construct_vpath_list (char *pattern, char *dirpath);
+const char *vpath_search (const char *file, FILE_TIMESTAMP *mtime_ptr,
+ unsigned int* vpath_index, unsigned int* path_index);
+int gpath_search (const char *file, unsigned int len);
+
+void construct_include_path (const char **arg_dirs);
+
+void user_access (void);
+void make_access (void);
+void child_access (void);
+
+char *strip_whitespace (const char **begpp, const char **endpp);
+
+void show_goal_error (void);
+
+/* String caching */
+void strcache_init (void);
+void strcache_print_stats (const char *prefix);
+int strcache_iscached (const char *str);
+const char *strcache_add (const char *str);
+const char *strcache_add_len (const char *str, unsigned int len);
+
+/* Guile support */
+int guile_gmake_setup (const floc *flocp);
+
+/* Loadable object support. Sets to the strcached name of the loaded file. */
+typedef int (*load_func_t)(const floc *flocp);
+int load_file (const floc *flocp, const char **filename, int noerror);
+void unload_file (const char *name);
+
+/* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
+ because such systems often declare them in header files anyway. */
+
+#if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32)
+
+long int atol ();
+# ifndef VMS
+long int lseek ();
+# endif
+
+# ifdef HAVE_GETCWD
+# if !defined(VMS) && !defined(__DECC)
+char *getcwd ();
+# endif
+# else
+char *getwd ();
+# define getcwd(buf, len) getwd (buf)
+# endif
+
+#endif /* Not GNU C library or POSIX. */
+
+#if !HAVE_STRCASECMP
+# if HAVE_STRICMP
+# define strcasecmp stricmp
+# elif HAVE_STRCMPI
+# define strcasecmp strcmpi
+# else
+/* Create our own, in misc.c */
+int strcasecmp (const char *s1, const char *s2);
+# endif
+#endif
+
+#if !HAVE_STRNCASECMP
+# if HAVE_STRNICMP
+# define strncasecmp strnicmp
+# elif HAVE_STRNCMPI
+# define strncasecmp strncmpi
+# else
+/* Create our own, in misc.c */
+int strncasecmp (const char *s1, const char *s2, int n);
+# endif
+#endif
+
+#define OUTPUT_SYNC_NONE 0
+#define OUTPUT_SYNC_LINE 1
+#define OUTPUT_SYNC_TARGET 2
+#define OUTPUT_SYNC_RECURSE 3
+
+/* Non-GNU systems may not declare this in unistd.h. */
+extern char **environ;
+
+extern const floc *reading_file;
+extern const floc **expanding_var;
+
+extern unsigned short stopchar_map[];
+
+extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
+extern int print_data_base_flag, question_flag, touch_flag, always_make_flag;
+extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag;
+extern int print_version_flag, print_directory_flag, check_symlink_flag;
+extern int warn_undefined_variables_flag, trace_flag, posix_pedantic;
+extern int not_parallel, second_expansion, clock_skew_detected;
+extern int rebuilding_makefiles, one_shell, output_sync, verify_flag;
+
+extern const char *default_shell;
+
+/* can we run commands via 'sh -c xxx' or must we use batch files? */
+extern int batch_mode_shell;
+
+/* Resetting the command script introduction prefix character. */
+#define RECIPEPREFIX_NAME ".RECIPEPREFIX"
+#define RECIPEPREFIX_DEFAULT '\t'
+extern char cmd_prefix;
+
+extern unsigned int job_slots;
+#ifndef NO_FLOAT
+extern double max_load_average;
+#else
+extern int max_load_average;
+#endif
+
+#ifdef WINDOWS32
+extern char *program;
+#else
+extern const char *program;
+#endif
+
+#ifdef VMS
+const char *vms_command (const char *argv0);
+const char *vms_progname (const char *argv0);
+
+void vms_exit (int);
+# define _exit(foo) vms_exit(foo)
+# define exit(foo) vms_exit(foo)
+
+extern char *program_name;
+
+void
+set_program_name (const char *arv0);
+
+int
+need_vms_symbol (void);
+
+int
+create_foreign_command (const char *command, const char *image);
+
+int
+vms_export_dcl_symbol (const char *name, const char *value);
+
+int
+vms_putenv_symbol (const char *string);
+
+void
+vms_restore_symbol (const char *string);
+
+#endif
+
+void remote_setup (void);
+void remote_cleanup (void);
+int start_remote_job_p (int);
+int start_remote_job (char **, char **, int, int *, int *, int *);
+int remote_status (int *, int *, int *, int);
+void block_remote_children (void);
+void unblock_remote_children (void);
+int remote_kill (int id, int sig);
+void print_variable_data_base (void);
+void print_vpath_data_base (void);
+
+extern char *starting_directory;
+extern unsigned int makelevel;
+extern char *version_string, *remote_description, *make_host;
+
+extern unsigned int commands_started;
+
+extern int handling_fatal_signal;
+
+
+#ifndef MIN
+#define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
+#endif
+#ifndef MAX
+#define MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
+#endif
+
+
+#define MAKE_SUCCESS 0
+#define MAKE_TROUBLE 1
+#define MAKE_FAILURE 2
+
+/* Set up heap debugging library dmalloc. */
+
+#ifdef HAVE_DMALLOC_H
+#include <dmalloc.h>
+#endif
+
+#ifndef initialize_main
+# ifdef __EMX__
+# define initialize_main(pargc, pargv) \
+ { _wildcard(pargc, pargv); _response(pargc, pargv); }
+# else
+# define initialize_main(pargc, pargv)
+# endif
+#endif
+
+#ifdef __EMX__
+# if !defined chdir
+# define chdir _chdir2
+# endif
+# if !defined getcwd
+# define getcwd _getcwd2
+# endif
+
+/* NO_CHDIR2 causes make not to use _chdir2() and _getcwd2() instead of
+ chdir() and getcwd(). This avoids some error messages for the
+ make testsuite but restricts the drive letter support. */
+# ifdef NO_CHDIR2
+# warning NO_CHDIR2: usage of drive letters restricted
+# undef chdir
+# undef getcwd
+# endif
+#endif
+
+#ifndef initialize_main
+# define initialize_main(pargc, pargv)
+#endif
+
+
+/* Some systems (like Solaris, PTX, etc.) do not support the SA_RESTART flag
+ properly according to POSIX. So, we try to wrap common system calls with
+ checks for EINTR. Note that there are still plenty of system calls that
+ can fail with EINTR but this, reportedly, gets the vast majority of
+ failure cases. If you still experience failures you'll need to either get
+ a system where SA_RESTART works, or you need to avoid -j. */
+
+#define EINTRLOOP(_v,_c) while (((_v)=_c)==-1 && errno==EINTR)
+
+/* While system calls that return integers are pretty consistent about
+ returning -1 on failure and setting errno in that case, functions that
+ return pointers are not always so well behaved. Sometimes they return
+ NULL for expected behavior: one good example is readdir() which returns
+ NULL at the end of the directory--and _doesn't_ reset errno. So, we have
+ to do it ourselves here. */
+
+#define ENULLLOOP(_v,_c) do { errno = 0; (_v) = _c; } \
+ while((_v)==0 && errno==EINTR)
diff --git a/misc.c b/misc.c
new file mode 100644
index 0000000..e7ab809
--- /dev/null
+++ b/misc.c
@@ -0,0 +1,712 @@
+/* Miscellaneous generic support functions for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "dep.h"
+#include "debug.h"
+
+/* GNU make no longer supports pre-ANSI89 environments. */
+
+#include <stdarg.h>
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#else
+# include <sys/file.h>
+#endif
+
+/* Compare strings *S1 and *S2.
+ Return negative if the first is less, positive if it is greater,
+ zero if they are equal. */
+
+int
+alpha_compare (const void *v1, const void *v2)
+{
+ const char *s1 = *((char **)v1);
+ const char *s2 = *((char **)v2);
+
+ if (*s1 != *s2)
+ return *s1 - *s2;
+ return strcmp (s1, s2);
+}
+
+/* Discard each backslash-newline combination from LINE.
+ Backslash-backslash-newline combinations become backslash-newlines.
+ This is done by copying the text at LINE into itself. */
+
+void
+collapse_continuations (char *line)
+{
+ char *in, *out, *p;
+
+ in = strchr (line, '\n');
+ if (in == 0)
+ return;
+
+ out = in;
+ while (out > line && out[-1] == '\\')
+ --out;
+
+ while (*in != '\0')
+ {
+ /* BS_WRITE gets the number of quoted backslashes at
+ the end just before IN, and BACKSLASH gets nonzero
+ if the next character is quoted. */
+ unsigned int backslash = 0;
+ unsigned int bs_write = 0;
+ for (p = in - 1; p >= line && *p == '\\'; --p)
+ {
+ if (backslash)
+ ++bs_write;
+ backslash = !backslash;
+
+ /* It should be impossible to go back this far without exiting,
+ but if we do, we can't get the right answer. */
+ if (in == out - 1)
+ abort ();
+ }
+
+ /* Output the appropriate number of backslashes. */
+ while (bs_write-- > 0)
+ *out++ = '\\';
+
+ /* Skip the newline. */
+ ++in;
+
+ if (backslash)
+ {
+ /* Backslash/newline handling:
+ In traditional GNU make all trailing whitespace, consecutive
+ backslash/newlines, and any leading non-newline whitespace on the
+ next line is reduced to a single space.
+ In POSIX, each backslash/newline and is replaced by a space. */
+ while (ISBLANK (*in))
+ ++in;
+ if (! posix_pedantic)
+ while (out > line && ISBLANK (out[-1]))
+ --out;
+ *out++ = ' ';
+ }
+ else
+ /* If the newline isn't quoted, put it in the output. */
+ *out++ = '\n';
+
+ /* Now copy the following line to the output.
+ Stop when we find backslashes followed by a newline. */
+ while (*in != '\0')
+ if (*in == '\\')
+ {
+ p = in + 1;
+ while (*p == '\\')
+ ++p;
+ if (*p == '\n')
+ {
+ in = p;
+ break;
+ }
+ while (in < p)
+ *out++ = *in++;
+ }
+ else
+ *out++ = *in++;
+ }
+
+ *out = '\0';
+}
+
+/* Print N spaces (used in debug for target-depth). */
+
+void
+print_spaces (unsigned int n)
+{
+ while (n-- > 0)
+ putchar (' ');
+}
+
+
+/* Return a string whose contents concatenate the NUM strings provided
+ This string lives in static, re-used memory. */
+
+const char *
+concat (unsigned int num, ...)
+{
+ static unsigned int rlen = 0;
+ static char *result = NULL;
+ unsigned int ri = 0;
+ va_list args;
+
+ va_start (args, num);
+
+ while (num-- > 0)
+ {
+ const char *s = va_arg (args, const char *);
+ unsigned int l = xstrlen (s);
+
+ if (l == 0)
+ continue;
+
+ if (ri + l > rlen)
+ {
+ rlen = ((rlen ? rlen : 60) + l) * 2;
+ result = xrealloc (result, rlen);
+ }
+
+ memcpy (result + ri, s, l);
+ ri += l;
+ }
+
+ va_end (args);
+
+ /* Get some more memory if we don't have enough space for the
+ terminating '\0'. */
+ if (ri == rlen)
+ {
+ rlen = (rlen ? rlen : 60) * 2;
+ result = xrealloc (result, rlen);
+ }
+
+ result[ri] = '\0';
+
+ return result;
+}
+
+
+#ifndef HAVE_STRERROR
+#undef strerror
+char *
+strerror (int errnum)
+{
+ extern int errno, sys_nerr;
+#ifndef __DECC
+ extern char *sys_errlist[];
+#endif
+ static char buf[] = "Unknown error 12345678901234567890";
+
+ if (errno < sys_nerr)
+ return sys_errlist[errnum];
+
+ sprintf (buf, _("Unknown error %d"), errnum);
+ return buf;
+}
+#endif
+
+/* Like malloc but get fatal error if memory is exhausted. */
+/* Don't bother if we're using dmalloc; it provides these for us. */
+
+#ifndef HAVE_DMALLOC_H
+
+#undef xmalloc
+#undef xcalloc
+#undef xrealloc
+#undef xstrdup
+
+void *
+xmalloc (unsigned int size)
+{
+ /* Make sure we don't allocate 0, for pre-ISO implementations. */
+ void *result = malloc (size ? size : 1);
+ if (result == 0)
+ OUT_OF_MEM();
+ return result;
+}
+
+
+void *
+xcalloc (unsigned int size)
+{
+ /* Make sure we don't allocate 0, for pre-ISO implementations. */
+ void *result = calloc (size ? size : 1, 1);
+ if (result == 0)
+ OUT_OF_MEM();
+ return result;
+}
+
+
+void *
+xrealloc (void *ptr, unsigned int size)
+{
+ void *result;
+
+ /* Some older implementations of realloc() don't conform to ISO. */
+ if (! size)
+ size = 1;
+ result = ptr ? realloc (ptr, size) : malloc (size);
+ if (result == 0)
+ OUT_OF_MEM();
+ return result;
+}
+
+
+char *
+xstrdup (const char *ptr)
+{
+ char *result;
+
+#ifdef HAVE_STRDUP
+ result = strdup (ptr);
+#else
+ result = malloc (strlen (ptr) + 1);
+#endif
+
+ if (result == 0)
+ OUT_OF_MEM();
+
+#ifdef HAVE_STRDUP
+ return result;
+#else
+ return strcpy (result, ptr);
+#endif
+}
+
+#endif /* HAVE_DMALLOC_H */
+
+char *
+xstrndup (const char *str, unsigned int length)
+{
+ char *result;
+
+#ifdef HAVE_STRNDUP
+ result = strndup (str, length);
+ if (result == 0)
+ OUT_OF_MEM();
+#else
+ result = xmalloc (length + 1);
+ if (length > 0)
+ strncpy (result, str, length);
+ result[length] = '\0';
+#endif
+
+ return result;
+}
+
+
+/* Limited INDEX:
+ Search through the string STRING, which ends at LIMIT, for the character C.
+ Returns a pointer to the first occurrence, or nil if none is found.
+ Like INDEX except that the string searched ends where specified
+ instead of at the first null. */
+
+char *
+lindex (const char *s, const char *limit, int c)
+{
+ while (s < limit)
+ if (*s++ == c)
+ return (char *)(s - 1);
+
+ return 0;
+}
+
+/* Return the address of the first whitespace or null in the string S. */
+
+char *
+end_of_token (const char *s)
+{
+ END_OF_TOKEN (s);
+ return (char *)s;
+}
+
+/* Return the address of the first nonwhitespace or null in the string S. */
+
+char *
+next_token (const char *s)
+{
+ NEXT_TOKEN (s);
+ return (char *)s;
+}
+
+/* Find the next token in PTR; return the address of it, and store the length
+ of the token into *LENGTHPTR if LENGTHPTR is not nil. Set *PTR to the end
+ of the token, so this function can be called repeatedly in a loop. */
+
+char *
+find_next_token (const char **ptr, unsigned int *lengthptr)
+{
+ const char *p = next_token (*ptr);
+
+ if (*p == '\0')
+ return 0;
+
+ *ptr = end_of_token (p);
+ if (lengthptr != 0)
+ *lengthptr = *ptr - p;
+
+ return (char *)p;
+}
+
+
+/* Copy a chain of 'struct dep'. For 2nd expansion deps, dup the name. */
+
+struct dep *
+copy_dep_chain (const struct dep *d)
+{
+ struct dep *firstnew = 0;
+ struct dep *lastnew = 0;
+
+ while (d != 0)
+ {
+ struct dep *c = xmalloc (sizeof (struct dep));
+ memcpy (c, d, sizeof (struct dep));
+
+ if (c->need_2nd_expansion)
+ c->name = xstrdup (c->name);
+
+ c->next = 0;
+ if (firstnew == 0)
+ firstnew = lastnew = c;
+ else
+ lastnew = lastnew->next = c;
+
+ d = d->next;
+ }
+
+ return firstnew;
+}
+
+/* Free a chain of struct nameseq.
+ For struct dep chains use free_dep_chain. */
+
+void
+free_ns_chain (struct nameseq *ns)
+{
+ while (ns != 0)
+ {
+ struct nameseq *t = ns;
+ ns = ns->next;
+ free_ns (t);
+ }
+}
+
+
+#if !HAVE_STRCASECMP && !HAVE_STRICMP && !HAVE_STRCMPI
+/* If we don't have strcasecmp() (from POSIX), or anything that can substitute
+ for it, define our own version. */
+
+int
+strcasecmp (const char *s1, const char *s2)
+{
+ while (1)
+ {
+ int c1 = (int) *(s1++);
+ int c2 = (int) *(s2++);
+
+ if (isalpha (c1))
+ c1 = tolower (c1);
+ if (isalpha (c2))
+ c2 = tolower (c2);
+
+ if (c1 != '\0' && c1 == c2)
+ continue;
+
+ return (c1 - c2);
+ }
+}
+#endif
+
+#if !HAVE_STRNCASECMP && !HAVE_STRNICMP && !HAVE_STRNCMPI
+/* If we don't have strncasecmp() (from POSIX), or anything that can
+ substitute for it, define our own version. */
+
+int
+strncasecmp (const char *s1, const char *s2, int n)
+{
+ while (n-- > 0)
+ {
+ int c1 = (int) *(s1++);
+ int c2 = (int) *(s2++);
+
+ if (isalpha (c1))
+ c1 = tolower (c1);
+ if (isalpha (c2))
+ c2 = tolower (c2);
+
+ if (c1 != '\0' && c1 == c2)
+ continue;
+
+ return (c1 - c2);
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef GETLOADAVG_PRIVILEGED
+
+#ifdef POSIX
+
+/* Hopefully if a system says it's POSIX.1 and has the setuid and setgid
+ functions, they work as POSIX.1 says. Some systems (Alpha OSF/1 1.2,
+ for example) which claim to be POSIX.1 also have the BSD setreuid and
+ setregid functions, but they don't work as in BSD and only the POSIX.1
+ way works. */
+
+#undef HAVE_SETREUID
+#undef HAVE_SETREGID
+
+#else /* Not POSIX. */
+
+/* Some POSIX.1 systems have the seteuid and setegid functions. In a
+ POSIX-like system, they are the best thing to use. However, some
+ non-POSIX systems have them too but they do not work in the POSIX style
+ and we must use setreuid and setregid instead. */
+
+#undef HAVE_SETEUID
+#undef HAVE_SETEGID
+
+#endif /* POSIX. */
+
+#ifndef HAVE_UNISTD_H
+extern int getuid (), getgid (), geteuid (), getegid ();
+extern int setuid (), setgid ();
+#ifdef HAVE_SETEUID
+extern int seteuid ();
+#else
+#ifdef HAVE_SETREUID
+extern int setreuid ();
+#endif /* Have setreuid. */
+#endif /* Have seteuid. */
+#ifdef HAVE_SETEGID
+extern int setegid ();
+#else
+#ifdef HAVE_SETREGID
+extern int setregid ();
+#endif /* Have setregid. */
+#endif /* Have setegid. */
+#endif /* No <unistd.h>. */
+
+/* Keep track of the user and group IDs for user- and make- access. */
+static int user_uid = -1, user_gid = -1, make_uid = -1, make_gid = -1;
+#define access_inited (user_uid != -1)
+static enum { make, user } current_access;
+
+
+/* Under -d, write a message describing the current IDs. */
+
+static void
+log_access (const char *flavor)
+{
+ if (! ISDB (DB_JOBS))
+ return;
+
+ /* All the other debugging messages go to stdout,
+ but we write this one to stderr because it might be
+ run in a child fork whose stdout is piped. */
+
+ fprintf (stderr, _("%s: user %lu (real %lu), group %lu (real %lu)\n"),
+ flavor, (unsigned long) geteuid (), (unsigned long) getuid (),
+ (unsigned long) getegid (), (unsigned long) getgid ());
+ fflush (stderr);
+}
+
+
+static void
+init_access (void)
+{
+#ifndef VMS
+ user_uid = getuid ();
+ user_gid = getgid ();
+
+ make_uid = geteuid ();
+ make_gid = getegid ();
+
+ /* Do these ever fail? */
+ if (user_uid == -1 || user_gid == -1 || make_uid == -1 || make_gid == -1)
+ pfatal_with_name ("get{e}[gu]id");
+
+ log_access (_("Initialized access"));
+
+ current_access = make;
+#endif
+}
+
+#endif /* GETLOADAVG_PRIVILEGED */
+
+/* Give the process appropriate permissions for access to
+ user data (i.e., to stat files, or to spawn a child process). */
+void
+user_access (void)
+{
+#ifdef GETLOADAVG_PRIVILEGED
+
+ if (!access_inited)
+ init_access ();
+
+ if (current_access == user)
+ return;
+
+ /* We are in "make access" mode. This means that the effective user and
+ group IDs are those of make (if it was installed setuid or setgid).
+ We now want to set the effective user and group IDs to the real IDs,
+ which are the IDs of the process that exec'd make. */
+
+#ifdef HAVE_SETEUID
+
+ /* Modern systems have the seteuid/setegid calls which set only the
+ effective IDs, which is ideal. */
+
+ if (seteuid (user_uid) < 0)
+ pfatal_with_name ("user_access: seteuid");
+
+#else /* Not HAVE_SETEUID. */
+
+#ifndef HAVE_SETREUID
+
+ /* System V has only the setuid/setgid calls to set user/group IDs.
+ There is an effective ID, which can be set by setuid/setgid.
+ It can be set (unless you are root) only to either what it already is
+ (returned by geteuid/getegid, now in make_uid/make_gid),
+ the real ID (return by getuid/getgid, now in user_uid/user_gid),
+ or the saved set ID (what the effective ID was before this set-ID
+ executable (make) was exec'd). */
+
+ if (setuid (user_uid) < 0)
+ pfatal_with_name ("user_access: setuid");
+
+#else /* HAVE_SETREUID. */
+
+ /* In 4BSD, the setreuid/setregid calls set both the real and effective IDs.
+ They may be set to themselves or each other. So you have two alternatives
+ at any one time. If you use setuid/setgid, the effective will be set to
+ the real, leaving only one alternative. Using setreuid/setregid, however,
+ you can toggle between your two alternatives by swapping the values in a
+ single setreuid or setregid call. */
+
+ if (setreuid (make_uid, user_uid) < 0)
+ pfatal_with_name ("user_access: setreuid");
+
+#endif /* Not HAVE_SETREUID. */
+#endif /* HAVE_SETEUID. */
+
+#ifdef HAVE_SETEGID
+ if (setegid (user_gid) < 0)
+ pfatal_with_name ("user_access: setegid");
+#else
+#ifndef HAVE_SETREGID
+ if (setgid (user_gid) < 0)
+ pfatal_with_name ("user_access: setgid");
+#else
+ if (setregid (make_gid, user_gid) < 0)
+ pfatal_with_name ("user_access: setregid");
+#endif
+#endif
+
+ current_access = user;
+
+ log_access (_("User access"));
+
+#endif /* GETLOADAVG_PRIVILEGED */
+}
+
+/* Give the process appropriate permissions for access to
+ make data (i.e., the load average). */
+void
+make_access (void)
+{
+#ifdef GETLOADAVG_PRIVILEGED
+
+ if (!access_inited)
+ init_access ();
+
+ if (current_access == make)
+ return;
+
+ /* See comments in user_access, above. */
+
+#ifdef HAVE_SETEUID
+ if (seteuid (make_uid) < 0)
+ pfatal_with_name ("make_access: seteuid");
+#else
+#ifndef HAVE_SETREUID
+ if (setuid (make_uid) < 0)
+ pfatal_with_name ("make_access: setuid");
+#else
+ if (setreuid (user_uid, make_uid) < 0)
+ pfatal_with_name ("make_access: setreuid");
+#endif
+#endif
+
+#ifdef HAVE_SETEGID
+ if (setegid (make_gid) < 0)
+ pfatal_with_name ("make_access: setegid");
+#else
+#ifndef HAVE_SETREGID
+ if (setgid (make_gid) < 0)
+ pfatal_with_name ("make_access: setgid");
+#else
+ if (setregid (user_gid, make_gid) < 0)
+ pfatal_with_name ("make_access: setregid");
+#endif
+#endif
+
+ current_access = make;
+
+ log_access (_("Make access"));
+
+#endif /* GETLOADAVG_PRIVILEGED */
+}
+
+/* Give the process appropriate permissions for a child process.
+ This is like user_access, but you can't get back to make_access. */
+void
+child_access (void)
+{
+#ifdef GETLOADAVG_PRIVILEGED
+
+ if (!access_inited)
+ abort ();
+
+ /* Set both the real and effective UID and GID to the user's.
+ They cannot be changed back to make's. */
+
+#ifndef HAVE_SETREUID
+ if (setuid (user_uid) < 0)
+ pfatal_with_name ("child_access: setuid");
+#else
+ if (setreuid (user_uid, user_uid) < 0)
+ pfatal_with_name ("child_access: setreuid");
+#endif
+
+#ifndef HAVE_SETREGID
+ if (setgid (user_gid) < 0)
+ pfatal_with_name ("child_access: setgid");
+#else
+ if (setregid (user_gid, user_gid) < 0)
+ pfatal_with_name ("child_access: setregid");
+#endif
+
+ log_access (_("Child access"));
+
+#endif /* GETLOADAVG_PRIVILEGED */
+}
+
+#ifdef NEED_GET_PATH_MAX
+unsigned int
+get_path_max (void)
+{
+ static unsigned int value;
+
+ if (value == 0)
+ {
+ long int x = pathconf ("/", _PC_PATH_MAX);
+ if (x > 0)
+ value = x;
+ else
+ return MAXPATHLEN;
+ }
+
+ return value;
+}
+#endif
diff --git a/os.h b/os.h
new file mode 100644
index 0000000..c1a19e1
--- /dev/null
+++ b/os.h
@@ -0,0 +1,84 @@
+/* Declarations for operating system interfaces for GNU Make.
+Copyright (C) 2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* This section provides OS-specific functions to support the jobserver. */
+
+#ifdef MAKE_JOBSERVER
+
+/* Returns 1 if the jobserver is enabled, else 0. */
+unsigned int jobserver_enabled (void);
+
+/* Called in the master instance to set up the jobserver initially. */
+unsigned int jobserver_setup (int job_slots);
+
+/* Called in a child instance to connect to the jobserver. */
+unsigned int jobserver_parse_auth (const char* auth);
+
+/* Returns an allocated buffer used to pass to child instances. */
+char *jobserver_get_auth (void);
+
+/* Clear this instance's jobserver configuration. */
+void jobserver_clear (void);
+
+/* Recover all the jobserver tokens and return the number we got. */
+unsigned int jobserver_acquire_all (void);
+
+/* Release a jobserver token. If it fails and is_fatal is 1, fatal. */
+void jobserver_release (int is_fatal);
+
+/* Notify the jobserver that a child exited. */
+void jobserver_signal (void);
+
+/* Get ready to start a non-recursive child. */
+void jobserver_pre_child (int);
+
+/* Complete starting a non-recursive child. */
+void jobserver_post_child (int);
+
+/* Set up to acquire a new token. */
+void jobserver_pre_acquire (void);
+
+/* Wait until we can acquire a jobserver token.
+ TIMEOUT is 1 if we have other jobs waiting for the load to go down;
+ in this case we won't wait forever, so we can check the load.
+ Returns 1 if we got a token, or 0 if we stopped waiting due to a child
+ exiting or a timeout. */
+unsigned int jobserver_acquire (int timeout);
+
+#else
+
+#define jobserver_enabled() (0)
+#define jobserver_setup(_slots) (0)
+#define jobserver_parse_auth(_auth) (0)
+#define jobserver_get_auth() (NULL)
+#define jobserver_clear() (void)(0)
+#define jobserver_release(_fatal) (void)(0)
+#define jobserver_acquire_all() (0)
+#define jobserver_signal() (void)(0)
+#define jobserver_pre_child(_r) (void)(0)
+#define jobserver_post_child(_r) (void)(0)
+#define jobserver_pre_acquire() (void)(0)
+#define jobserver_acquire(_tmout) (0)
+
+#endif
+
+/* Create a "bad" file descriptor for stdin when parallel jobs are run. */
+#if !defined(VMD) && !defined(WINDOWS32) && !defined(_AMIGA) && !defined(__MSDOS__)
+int get_bad_stdin (void);
+#else
+# define get_bad_stdin() (-1)
+#endif
diff --git a/output.c b/output.c
new file mode 100644
index 0000000..65182c4
--- /dev/null
+++ b/output.c
@@ -0,0 +1,723 @@
+/* Output to stdout / stderr for GNU make
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "job.h"
+
+/* GNU make no longer supports pre-ANSI89 environments. */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#else
+# include <sys/file.h>
+#endif
+
+#ifdef WINDOWS32
+# include <windows.h>
+# include <io.h>
+# include "sub_proc.h"
+#endif /* WINDOWS32 */
+
+struct output *output_context = NULL;
+unsigned int stdio_traced = 0;
+
+#define OUTPUT_NONE (-1)
+
+#define OUTPUT_ISSET(_out) ((_out)->out >= 0 || (_out)->err >= 0)
+
+#ifdef HAVE_FCNTL_H
+# define STREAM_OK(_s) ((fcntl (fileno (_s), F_GETFD) != -1) || (errno != EBADF))
+#else
+# define STREAM_OK(_s) 1
+#endif
+
+/* Write a string to the current STDOUT or STDERR. */
+static void
+_outputs (struct output *out, int is_err, const char *msg)
+{
+ if (! out || ! out->syncout)
+ {
+ FILE *f = is_err ? stderr : stdout;
+ fputs (msg, f);
+ fflush (f);
+ }
+ else
+ {
+ int fd = is_err ? out->err : out->out;
+ int len = strlen (msg);
+ int r;
+
+ EINTRLOOP (r, lseek (fd, 0, SEEK_END));
+ while (1)
+ {
+ EINTRLOOP (r, write (fd, msg, len));
+ if (r == len || r <= 0)
+ break;
+ len -= r;
+ msg += r;
+ }
+ }
+}
+
+/* Write a message indicating that we've just entered or
+ left (according to ENTERING) the current directory. */
+
+static int
+log_working_directory (int entering)
+{
+ static char *buf = NULL;
+ static unsigned int len = 0;
+ unsigned int need;
+ const char *fmt;
+ char *p;
+
+ /* Get enough space for the longest possible output. */
+ need = strlen (program) + INTSTR_LENGTH + 2 + 1;
+ if (starting_directory)
+ need += strlen (starting_directory);
+
+ /* Use entire sentences to give the translators a fighting chance. */
+ if (makelevel == 0)
+ if (starting_directory == 0)
+ if (entering)
+ fmt = _("%s: Entering an unknown directory\n");
+ else
+ fmt = _("%s: Leaving an unknown directory\n");
+ else
+ if (entering)
+ fmt = _("%s: Entering directory '%s'\n");
+ else
+ fmt = _("%s: Leaving directory '%s'\n");
+ else
+ if (starting_directory == 0)
+ if (entering)
+ fmt = _("%s[%u]: Entering an unknown directory\n");
+ else
+ fmt = _("%s[%u]: Leaving an unknown directory\n");
+ else
+ if (entering)
+ fmt = _("%s[%u]: Entering directory '%s'\n");
+ else
+ fmt = _("%s[%u]: Leaving directory '%s'\n");
+
+ need += strlen (fmt);
+
+ if (need > len)
+ {
+ buf = xrealloc (buf, need);
+ len = need;
+ }
+
+ p = buf;
+ if (print_data_base_flag)
+ {
+ *(p++) = '#';
+ *(p++) = ' ';
+ }
+
+ if (makelevel == 0)
+ if (starting_directory == 0)
+ sprintf (p, fmt , program);
+ else
+ sprintf (p, fmt, program, starting_directory);
+ else if (starting_directory == 0)
+ sprintf (p, fmt, program, makelevel);
+ else
+ sprintf (p, fmt, program, makelevel, starting_directory);
+
+ _outputs (NULL, 0, buf);
+
+ return 1;
+}
+
+/* Set a file descriptor to be in O_APPEND mode.
+ If it fails, just ignore it. */
+
+static void
+set_append_mode (int fd)
+{
+#if defined(F_GETFL) && defined(F_SETFL) && defined(O_APPEND)
+ int flags = fcntl (fd, F_GETFL, 0);
+ if (flags >= 0)
+ fcntl (fd, F_SETFL, flags | O_APPEND);
+#endif
+}
+
+
+#ifndef NO_OUTPUT_SYNC
+
+/* Semaphore for use in -j mode with output_sync. */
+static sync_handle_t sync_handle = -1;
+
+#define FD_NOT_EMPTY(_f) ((_f) != OUTPUT_NONE && lseek ((_f), 0, SEEK_END) > 0)
+
+/* Set up the sync handle. Disables output_sync on error. */
+static int
+sync_init (void)
+{
+ int combined_output = 0;
+
+#ifdef WINDOWS32
+ if ((!STREAM_OK (stdout) && !STREAM_OK (stderr))
+ || (sync_handle = create_mutex ()) == -1)
+ {
+ perror_with_name ("output-sync suppressed: ", "stderr");
+ output_sync = 0;
+ }
+ else
+ {
+ combined_output = same_stream (stdout, stderr);
+ prepare_mutex_handle_string (sync_handle);
+ }
+
+#else
+ if (STREAM_OK (stdout))
+ {
+ struct stat stbuf_o, stbuf_e;
+
+ sync_handle = fileno (stdout);
+ combined_output = (fstat (fileno (stdout), &stbuf_o) == 0
+ && fstat (fileno (stderr), &stbuf_e) == 0
+ && stbuf_o.st_dev == stbuf_e.st_dev
+ && stbuf_o.st_ino == stbuf_e.st_ino);
+ }
+ else if (STREAM_OK (stderr))
+ sync_handle = fileno (stderr);
+ else
+ {
+ perror_with_name ("output-sync suppressed: ", "stderr");
+ output_sync = 0;
+ }
+#endif
+
+ return combined_output;
+}
+
+/* Support routine for output_sync() */
+static void
+pump_from_tmp (int from, FILE *to)
+{
+ static char buffer[8192];
+
+#ifdef WINDOWS32
+ int prev_mode;
+
+ /* "from" is opened by open_tmpfd, which does it in binary mode, so
+ we need the mode of "to" to match that. */
+ prev_mode = _setmode (fileno (to), _O_BINARY);
+#endif
+
+ if (lseek (from, 0, SEEK_SET) == -1)
+ perror ("lseek()");
+
+ while (1)
+ {
+ int len;
+ EINTRLOOP (len, read (from, buffer, sizeof (buffer)));
+ if (len < 0)
+ perror ("read()");
+ if (len <= 0)
+ break;
+ if (fwrite (buffer, len, 1, to) < 1)
+ {
+ perror ("fwrite()");
+ break;
+ }
+ fflush (to);
+ }
+
+#ifdef WINDOWS32
+ /* Switch "to" back to its original mode, so that log messages by
+ Make have the same EOL format as without --output-sync. */
+ _setmode (fileno (to), prev_mode);
+#endif
+}
+
+/* Obtain the lock for writing output. */
+static void *
+acquire_semaphore (void)
+{
+ static struct flock fl;
+
+ fl.l_type = F_WRLCK;
+ fl.l_whence = SEEK_SET;
+ fl.l_start = 0;
+ fl.l_len = 1;
+ if (fcntl (sync_handle, F_SETLKW, &fl) != -1)
+ return &fl;
+ perror ("fcntl()");
+ return NULL;
+}
+
+/* Release the lock for writing output. */
+static void
+release_semaphore (void *sem)
+{
+ struct flock *flp = (struct flock *)sem;
+ flp->l_type = F_UNLCK;
+ if (fcntl (sync_handle, F_SETLKW, flp) == -1)
+ perror ("fcntl()");
+}
+
+/* Returns a file descriptor to a temporary file. The file is automatically
+ closed/deleted on exit. Don't use a FILE* stream. */
+int
+output_tmpfd (void)
+{
+ int fd = -1;
+ FILE *tfile = tmpfile ();
+
+ if (! tfile)
+ pfatal_with_name ("tmpfile");
+
+ /* Create a duplicate so we can close the stream. */
+ fd = dup (fileno (tfile));
+ if (fd < 0)
+ pfatal_with_name ("dup");
+
+ fclose (tfile);
+
+ set_append_mode (fd);
+
+ return fd;
+}
+
+/* Adds file descriptors to the child structure to support output_sync; one
+ for stdout and one for stderr as long as they are open. If stdout and
+ stderr share a device they can share a temp file too.
+ Will reset output_sync on error. */
+static void
+setup_tmpfile (struct output *out)
+{
+ /* Is make's stdout going to the same place as stderr? */
+ static int combined_output = -1;
+
+ if (combined_output < 0)
+ combined_output = sync_init ();
+
+ if (STREAM_OK (stdout))
+ {
+ int fd = output_tmpfd ();
+ if (fd < 0)
+ goto error;
+ CLOSE_ON_EXEC (fd);
+ out->out = fd;
+ }
+
+ if (STREAM_OK (stderr))
+ {
+ if (out->out != OUTPUT_NONE && combined_output)
+ out->err = out->out;
+ else
+ {
+ int fd = output_tmpfd ();
+ if (fd < 0)
+ goto error;
+ CLOSE_ON_EXEC (fd);
+ out->err = fd;
+ }
+ }
+
+ return;
+
+ /* If we failed to create a temp file, disable output sync going forward. */
+ error:
+ output_close (out);
+ output_sync = OUTPUT_SYNC_NONE;
+}
+
+/* Synchronize the output of jobs in -j mode to keep the results of
+ each job together. This is done by holding the results in temp files,
+ one for stdout and potentially another for stderr, and only releasing
+ them to "real" stdout/stderr when a semaphore can be obtained. */
+
+void
+output_dump (struct output *out)
+{
+ int outfd_not_empty = FD_NOT_EMPTY (out->out);
+ int errfd_not_empty = FD_NOT_EMPTY (out->err);
+
+ if (outfd_not_empty || errfd_not_empty)
+ {
+ int traced = 0;
+
+ /* Try to acquire the semaphore. If it fails, dump the output
+ unsynchronized; still better than silently discarding it.
+ We want to keep this lock for as little time as possible. */
+ void *sem = acquire_semaphore ();
+
+ /* Log the working directory for this dump. */
+ if (print_directory_flag && output_sync != OUTPUT_SYNC_RECURSE)
+ traced = log_working_directory (1);
+
+ if (outfd_not_empty)
+ pump_from_tmp (out->out, stdout);
+ if (errfd_not_empty && out->err != out->out)
+ pump_from_tmp (out->err, stderr);
+
+ if (traced)
+ log_working_directory (0);
+
+ /* Exit the critical section. */
+ if (sem)
+ release_semaphore (sem);
+
+ /* Truncate and reset the output, in case we use it again. */
+ if (out->out != OUTPUT_NONE)
+ {
+ int e;
+ lseek (out->out, 0, SEEK_SET);
+ EINTRLOOP (e, ftruncate (out->out, 0));
+ }
+ if (out->err != OUTPUT_NONE && out->err != out->out)
+ {
+ int e;
+ lseek (out->err, 0, SEEK_SET);
+ EINTRLOOP (e, ftruncate (out->err, 0));
+ }
+ }
+}
+#endif /* NO_OUTPUT_SYNC */
+
+
+/* Provide support for temporary files. */
+
+#ifndef HAVE_STDLIB_H
+# ifdef HAVE_MKSTEMP
+int mkstemp (char *template);
+# else
+char *mktemp (char *template);
+# endif
+#endif
+
+FILE *
+output_tmpfile (char **name, const char *template)
+{
+#ifdef HAVE_FDOPEN
+ int fd;
+#endif
+
+#if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
+# define TEMPLATE_LEN strlen (template)
+#else
+# define TEMPLATE_LEN L_tmpnam
+#endif
+ *name = xmalloc (TEMPLATE_LEN + 1);
+ strcpy (*name, template);
+
+#if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
+ /* It's safest to use mkstemp(), if we can. */
+ fd = mkstemp (*name);
+ if (fd == -1)
+ return 0;
+ return fdopen (fd, "w");
+#else
+# ifdef HAVE_MKTEMP
+ (void) mktemp (*name);
+# else
+ (void) tmpnam (*name);
+# endif
+
+# ifdef HAVE_FDOPEN
+ /* Can't use mkstemp(), but guard against a race condition. */
+ EINTRLOOP (fd, open (*name, O_CREAT|O_EXCL|O_WRONLY, 0600));
+ if (fd == -1)
+ return 0;
+ return fdopen (fd, "w");
+# else
+ /* Not secure, but what can we do? */
+ return fopen (*name, "w");
+# endif
+#endif
+}
+
+
+/* This code is stolen from gnulib.
+ If/when we abandon the requirement to work with K&R compilers, we can
+ remove this (and perhaps other parts of GNU make!) and migrate to using
+ gnulib directly.
+
+ This is called only through atexit(), which means die() has already been
+ invoked. So, call exit() here directly. Apparently that works...?
+*/
+
+/* Close standard output, exiting with status 'exit_failure' on failure.
+ If a program writes *anything* to stdout, that program should close
+ stdout and make sure that it succeeds before exiting. Otherwise,
+ suppose that you go to the extreme of checking the return status
+ of every function that does an explicit write to stdout. The last
+ printf can succeed in writing to the internal stream buffer, and yet
+ the fclose(stdout) could still fail (due e.g., to a disk full error)
+ when it tries to write out that buffered data. Thus, you would be
+ left with an incomplete output file and the offending program would
+ exit successfully. Even calling fflush is not always sufficient,
+ since some file systems (NFS and CODA) buffer written/flushed data
+ until an actual close call.
+
+ Besides, it's wasteful to check the return value from every call
+ that writes to stdout -- just let the internal stream state record
+ the failure. That's what the ferror test is checking below.
+
+ It's important to detect such failures and exit nonzero because many
+ tools (most notably 'make' and other build-management systems) depend
+ on being able to detect failure in other tools via their exit status. */
+
+static void
+close_stdout (void)
+{
+ int prev_fail = ferror (stdout);
+ int fclose_fail = fclose (stdout);
+
+ if (prev_fail || fclose_fail)
+ {
+ if (fclose_fail)
+ perror_with_name (_("write error: stdout"), "");
+ else
+ O (error, NILF, _("write error: stdout"));
+ exit (MAKE_TROUBLE);
+ }
+}
+
+
+void
+output_init (struct output *out)
+{
+ if (out)
+ {
+ out->out = out->err = OUTPUT_NONE;
+ out->syncout = !!output_sync;
+ return;
+ }
+
+ /* Configure this instance of make. Be sure stdout is line-buffered. */
+
+#ifdef HAVE_SETVBUF
+# ifdef SETVBUF_REVERSED
+ setvbuf (stdout, _IOLBF, xmalloc (BUFSIZ), BUFSIZ);
+# else /* setvbuf not reversed. */
+ /* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
+ setvbuf (stdout, 0, _IOLBF, BUFSIZ);
+# endif /* setvbuf reversed. */
+#elif HAVE_SETLINEBUF
+ setlinebuf (stdout);
+#endif /* setlinebuf missing. */
+
+ /* Force stdout/stderr into append mode. This ensures parallel jobs won't
+ lose output due to overlapping writes. */
+ set_append_mode (fileno (stdout));
+ set_append_mode (fileno (stderr));
+
+#ifdef HAVE_ATEXIT
+ if (STREAM_OK (stdout))
+ atexit (close_stdout);
+#endif
+}
+
+void
+output_close (struct output *out)
+{
+ if (! out)
+ {
+ if (stdio_traced)
+ log_working_directory (0);
+ return;
+ }
+
+#ifndef NO_OUTPUT_SYNC
+ output_dump (out);
+#endif
+
+ if (out->out >= 0)
+ close (out->out);
+ if (out->err >= 0 && out->err != out->out)
+ close (out->err);
+
+ output_init (out);
+}
+
+/* We're about to generate output: be sure it's set up. */
+void
+output_start (void)
+{
+#ifndef NO_OUTPUT_SYNC
+ /* If we're syncing output make sure the temporary file is set up. */
+ if (output_context && output_context->syncout)
+ if (! OUTPUT_ISSET(output_context))
+ setup_tmpfile (output_context);
+#endif
+
+ /* If we're not syncing this output per-line or per-target, make sure we emit
+ the "Entering..." message where appropriate. */
+ if (output_sync == OUTPUT_SYNC_NONE || output_sync == OUTPUT_SYNC_RECURSE)
+ if (! stdio_traced && print_directory_flag)
+ stdio_traced = log_working_directory (1);
+}
+
+void
+outputs (int is_err, const char *msg)
+{
+ if (! msg || *msg == '\0')
+ return;
+
+ output_start ();
+
+ _outputs (output_context, is_err, msg);
+}
+
+
+static struct fmtstring
+ {
+ char *buffer;
+ size_t size;
+ } fmtbuf = { NULL, 0 };
+
+static char *
+get_buffer (size_t need)
+{
+ /* Make sure we have room. NEED includes space for \0. */
+ if (need > fmtbuf.size)
+ {
+ fmtbuf.size += need * 2;
+ fmtbuf.buffer = xrealloc (fmtbuf.buffer, fmtbuf.size);
+ }
+
+ fmtbuf.buffer[need-1] = '\0';
+
+ return fmtbuf.buffer;
+}
+
+/* Print a message on stdout. */
+
+void
+message (int prefix, size_t len, const char *fmt, ...)
+{
+ va_list args;
+ char *p;
+
+ len += strlen (fmt) + strlen (program) + INTSTR_LENGTH + 4 + 1 + 1;
+ p = get_buffer (len);
+
+ if (prefix)
+ {
+ if (makelevel == 0)
+ sprintf (p, "%s: ", program);
+ else
+ sprintf (p, "%s[%u]: ", program, makelevel);
+ p += strlen (p);
+ }
+
+ va_start (args, fmt);
+ vsprintf (p, fmt, args);
+ va_end (args);
+
+ strcat (p, "\n");
+
+ assert (fmtbuf.buffer[len-1] == '\0');
+ outputs (0, fmtbuf.buffer);
+}
+
+/* Print an error message. */
+
+void
+error (const floc *flocp, size_t len, const char *fmt, ...)
+{
+ va_list args;
+ char *p;
+
+ len += (strlen (fmt) + strlen (program)
+ + (flocp && flocp->filenm ? strlen (flocp->filenm) : 0)
+ + INTSTR_LENGTH + 4 + 1 + 1);
+ p = get_buffer (len);
+
+ if (flocp && flocp->filenm)
+ sprintf (p, "%s:%lu: ", flocp->filenm, flocp->lineno + flocp->offset);
+ else if (makelevel == 0)
+ sprintf (p, "%s: ", program);
+ else
+ sprintf (p, "%s[%u]: ", program, makelevel);
+ p += strlen (p);
+
+ va_start (args, fmt);
+ vsprintf (p, fmt, args);
+ va_end (args);
+
+ strcat (p, "\n");
+
+ assert (fmtbuf.buffer[len-1] == '\0');
+ outputs (1, fmtbuf.buffer);
+}
+
+/* Print an error message and exit. */
+
+void
+fatal (const floc *flocp, size_t len, const char *fmt, ...)
+{
+ va_list args;
+ const char *stop = _(". Stop.\n");
+ char *p;
+
+ len += (strlen (fmt) + strlen (program)
+ + (flocp && flocp->filenm ? strlen (flocp->filenm) : 0)
+ + INTSTR_LENGTH + 8 + strlen (stop) + 1);
+ p = get_buffer (len);
+
+ if (flocp && flocp->filenm)
+ sprintf (p, "%s:%lu: *** ", flocp->filenm, flocp->lineno + flocp->offset);
+ else if (makelevel == 0)
+ sprintf (p, "%s: *** ", program);
+ else
+ sprintf (p, "%s[%u]: *** ", program, makelevel);
+ p += strlen (p);
+
+ va_start (args, fmt);
+ vsprintf (p, fmt, args);
+ va_end (args);
+
+ strcat (p, stop);
+
+ assert (fmtbuf.buffer[len-1] == '\0');
+ outputs (1, fmtbuf.buffer);
+
+ die (MAKE_FAILURE);
+}
+
+/* Print an error message from errno. */
+
+void
+perror_with_name (const char *str, const char *name)
+{
+ const char *err = strerror (errno);
+ OSSS (error, NILF, _("%s%s: %s"), str, name, err);
+}
+
+/* Print an error message from errno and exit. */
+
+void
+pfatal_with_name (const char *name)
+{
+ const char *err = strerror (errno);
+ OSS (fatal, NILF, _("%s: %s"), name, err);
+
+ /* NOTREACHED */
+}
diff --git a/output.h b/output.h
new file mode 100644
index 0000000..f4fe065
--- /dev/null
+++ b/output.h
@@ -0,0 +1,51 @@
+/* Output to stdout / stderr for GNU make
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+struct output
+ {
+ int out;
+ int err;
+ unsigned int syncout:1; /* True if we want to synchronize output. */
+ };
+
+extern struct output *output_context;
+extern unsigned int stdio_traced;
+
+#define OUTPUT_SET(_new) do{ output_context = (_new)->syncout ? (_new) : NULL; }while(0)
+#define OUTPUT_UNSET() do{ output_context = NULL; }while(0)
+
+#define OUTPUT_TRACED() do{ stdio_traced = 1; }while(0)
+#define OUTPUT_IS_TRACED() (!!stdio_traced)
+
+FILE *output_tmpfile (char **, const char *);
+
+/* Initialize and close a child output structure: if NULL do this program's
+ output (this should only be done once). */
+void output_init (struct output *out);
+void output_close (struct output *out);
+
+/* In situations where output may be about to be displayed but we're not
+ sure if we've set it up yet, call this. */
+void output_start (void);
+
+/* Show a message on stdout or stderr. Will start the output if needed. */
+void outputs (int is_err, const char *msg);
+
+#ifndef NO_OUTPUT_SYNC
+int output_tmpfd (void);
+/* Dump any child output content to stdout, and reset it. */
+void output_dump (struct output *out);
+#endif
diff --git a/po/.gitignore b/po/.gitignore
new file mode 100644
index 0000000..d7261f5
--- /dev/null
+++ b/po/.gitignore
@@ -0,0 +1,15 @@
+Makefile.in.in
+Makevars.template
+POTFILES
+Rules-quot
+boldquot.sed
+en@boldquot.header
+en@quot.header
+insert-header.sin
+make.pot
+quot.sed
+remove-potcdate.sin
+remove-potcdate.sed
+stamp-po
+*.gmo
+*.po
diff --git a/po/LINGUAS b/po/LINGUAS
new file mode 100644
index 0000000..d9ba7f4
--- /dev/null
+++ b/po/LINGUAS
@@ -0,0 +1,5 @@
+# Set of available languages: 25 languages
+
+be cs da de es fi fr ga gl he hr id it ja ko lt nl pl pt_BR ru sv tr uk vi zh_CN
+
+# Can't seem to get en@quot and en@boldquot to build properly?
diff --git a/po/Makevars b/po/Makevars
new file mode 100644
index 0000000..ee01884
--- /dev/null
+++ b/po/Makevars
@@ -0,0 +1,59 @@
+# This is a -*-Makefile-*-
+# Copyright (C) 2002-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+# Makefile variables for PO directory in any package using GNU gettext.
+
+# Usually the message domain is the same as the package name.
+DOMAIN = $(PACKAGE)
+
+# These two variables depend on the location of this directory.
+subdir = po
+top_builddir = ..
+
+# These options get passed to xgettext.
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
+
+# This is the copyright holder that gets inserted into the header of the
+# $(DOMAIN).pot file. Set this to the copyright holder of the surrounding
+# package. (Note that the msgstr strings, extracted from the package's
+# sources, belong to the copyright holder of the package.) Translators are
+# expected to transfer the copyright for their translations to this person
+# or entity, or to disclaim their copyright. The empty string stands for
+# the public domain; in this case the translators are expected to disclaim
+# their copyright.
+COPYRIGHT_HOLDER = Free Software Foundation, Inc.
+
+# This is the email address or URL to which the translators shall report
+# bugs in the untranslated strings:
+# - Strings which are not entire sentences, see the maintainer guidelines
+# in the GNU gettext documentation, section 'Preparing Strings'.
+# - Strings which use unclear terms or require additional context to be
+# understood.
+# - Strings which make invalid assumptions about notation of date, time or
+# money.
+# - Pluralisation problems.
+# - Incorrect English spelling.
+# - Incorrect formatting.
+# It can be your email address, or a mailing list address where translators
+# can write to without being subscribed, or the URL of a web page through
+# which the translators can contact you.
+MSGID_BUGS_ADDRESS = bug-make@gnu.org
+
+# This is the list of locale categories, beyond LC_MESSAGES, for which the
+# message catalogs shall be used. It is usually empty.
+EXTRA_LOCALE_CATEGORIES =
diff --git a/po/POTFILES.in b/po/POTFILES.in
new file mode 100644
index 0000000..061ff2b
--- /dev/null
+++ b/po/POTFILES.in
@@ -0,0 +1,47 @@
+# List of source files containing translatable strings.
+# Copyright (C) 2000-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+ar.c
+arscan.c
+commands.c
+dir.c
+expand.c
+file.c
+function.c
+getopt.c
+guile.c
+hash.c
+implicit.c
+job.c
+job.h
+load.c
+main.c
+misc.c
+output.c
+posixos.c
+read.c
+remake.c
+remote-cstms.c
+rule.c
+signame.c
+strcache.c
+variable.c
+variable.h
+vmsfunctions.c
+vmsjobs.c
+vpath.c
+w32/w32os.c
diff --git a/posixos.c b/posixos.c
new file mode 100644
index 0000000..4a787e4
--- /dev/null
+++ b/posixos.c
@@ -0,0 +1,431 @@
+/* POSIX-based operating system interface for GNU Make.
+Copyright (C) 2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <stdio.h>
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+#if defined(HAVE_PSELECT) && defined(HAVE_SYS_SELECT_H)
+# include <sys/select.h>
+#endif
+
+#include "debug.h"
+#include "job.h"
+#include "os.h"
+
+#ifdef MAKE_JOBSERVER
+
+/* This section provides OS-specific functions to support the jobserver. */
+
+/* These track the state of the jobserver pipe. Passed to child instances. */
+static int job_fds[2] = { -1, -1 };
+
+/* Used to signal read() that a SIGCHLD happened. Always CLOEXEC.
+ If we use pselect() this will never be created and always -1.
+ */
+static int job_rfd = -1;
+
+/* Token written to the pipe (could be any character...) */
+static char token = '+';
+
+static int
+make_job_rfd (void)
+{
+#ifdef HAVE_PSELECT
+ /* Pretend we succeeded. */
+ return 0;
+#else
+ EINTRLOOP (job_rfd, dup (job_fds[0]));
+ if (job_rfd >= 0)
+ CLOSE_ON_EXEC (job_rfd);
+
+ return job_rfd;
+#endif
+}
+
+unsigned int
+jobserver_setup (int slots)
+{
+ int r;
+
+ EINTRLOOP (r, pipe (job_fds));
+ if (r < 0)
+ pfatal_with_name (_("creating jobs pipe"));
+
+ if (make_job_rfd () < 0)
+ pfatal_with_name (_("duping jobs pipe"));
+
+ while (slots--)
+ {
+ EINTRLOOP (r, write (job_fds[1], &token, 1));
+ if (r != 1)
+ pfatal_with_name (_("init jobserver pipe"));
+ }
+
+ return 1;
+}
+
+unsigned int
+jobserver_parse_auth (const char *auth)
+{
+ /* Given the command-line parameter, parse it. */
+ if (sscanf (auth, "%d,%d", &job_fds[0], &job_fds[1]) != 2)
+ OS (fatal, NILF,
+ _("internal error: invalid --jobserver-auth string '%s'"), auth);
+
+ DB (DB_JOBS,
+ (_("Jobserver client (fds %d,%d)\n"), job_fds[0], job_fds[1]));
+
+#ifdef HAVE_FCNTL_H
+# define FD_OK(_f) (fcntl ((_f), F_GETFD) != -1)
+#else
+# define FD_OK(_f) 1
+#endif
+
+ /* Make sure our pipeline is valid, and (possibly) create a duplicate pipe,
+ that will be closed in the SIGCHLD handler. If this fails with EBADF,
+ the parent has closed the pipe on us because it didn't think we were a
+ submake. If so, warn and default to -j1. */
+
+ if (!FD_OK (job_fds[0]) || !FD_OK (job_fds[1]) || make_job_rfd () < 0)
+ {
+ if (errno != EBADF)
+ pfatal_with_name (_("jobserver pipeline"));
+
+ job_fds[0] = job_fds[1] = -1;
+
+ return 0;
+ }
+
+ return 1;
+}
+
+char *
+jobserver_get_auth (void)
+{
+ char *auth = xmalloc ((INTSTR_LENGTH * 2) + 2);
+ sprintf (auth, "%d,%d", job_fds[0], job_fds[1]);
+ return auth;
+}
+
+unsigned int
+jobserver_enabled (void)
+{
+ return job_fds[0] >= 0;
+}
+
+void
+jobserver_clear (void)
+{
+ if (job_fds[0] >= 0)
+ close (job_fds[0]);
+ if (job_fds[1] >= 0)
+ close (job_fds[1]);
+ if (job_rfd >= 0)
+ close (job_rfd);
+
+ job_fds[0] = job_fds[1] = job_rfd = -1;
+}
+
+void
+jobserver_release (int is_fatal)
+{
+ int r;
+ EINTRLOOP (r, write (job_fds[1], &token, 1));
+ if (r != 1)
+ {
+ if (is_fatal)
+ pfatal_with_name (_("write jobserver"));
+ perror_with_name ("write", "");
+ }
+}
+
+unsigned int
+jobserver_acquire_all (void)
+{
+ unsigned int tokens = 0;
+
+ /* Close the write side, so the read() won't hang. */
+ close (job_fds[1]);
+ job_fds[1] = -1;
+
+ while (1)
+ {
+ char intake;
+ int r;
+ EINTRLOOP (r, read (job_fds[0], &intake, 1));
+ if (r != 1)
+ return tokens;
+ ++tokens;
+ }
+}
+
+/* Prepare the jobserver to start a child process. */
+void
+jobserver_pre_child (int recursive)
+{
+ /* If it's not a recursive make, avoid polutting the jobserver pipes. */
+ if (!recursive && job_fds[0] >= 0)
+ {
+ CLOSE_ON_EXEC (job_fds[0]);
+ CLOSE_ON_EXEC (job_fds[1]);
+ }
+}
+
+void
+jobserver_post_child (int recursive)
+{
+#if defined(F_GETFD) && defined(F_SETFD)
+ if (!recursive && job_fds[0] >= 0)
+ {
+ unsigned int i;
+ for (i = 0; i < 2; ++i)
+ {
+ int flags;
+ EINTRLOOP (flags, fcntl (job_fds[i], F_GETFD));
+ if (flags >= 0)
+ {
+ int r;
+ EINTRLOOP (r, fcntl (job_fds[i], F_SETFD, flags & ~FD_CLOEXEC));
+ }
+ }
+ }
+#endif
+}
+
+void
+jobserver_signal (void)
+{
+ if (job_rfd >= 0)
+ {
+ close (job_rfd);
+ job_rfd = -1;
+ }
+}
+
+void
+jobserver_pre_acquire (void)
+{
+ /* Make sure we have a dup'd FD. */
+ if (job_rfd < 0 && job_fds[0] >= 0 && make_job_rfd () < 0)
+ pfatal_with_name (_("duping jobs pipe"));
+}
+
+#ifdef HAVE_PSELECT
+
+/* Use pselect() to atomically wait for both a signal and a file descriptor.
+ It also provides a timeout facility so we don't need to use SIGALRM.
+
+ This method relies on the fact that SIGCHLD will be blocked everywhere,
+ and only unblocked (atomically) within the pselect() call, so we can
+ never miss a SIGCHLD.
+ */
+unsigned int
+jobserver_acquire (int timeout)
+{
+ sigset_t empty;
+ fd_set readfds;
+ struct timespec spec;
+ struct timespec *specp = NULL;
+ int r;
+ char intake;
+
+ sigemptyset (&empty);
+
+ FD_ZERO (&readfds);
+ FD_SET (job_fds[0], &readfds);
+
+ if (timeout)
+ {
+ /* Alarm after one second (is this too granular?) */
+ spec.tv_sec = 1;
+ spec.tv_nsec = 0;
+ specp = &spec;
+ }
+
+ r = pselect (job_fds[0]+1, &readfds, NULL, NULL, specp, &empty);
+
+ if (r == -1)
+ {
+ /* Better be SIGCHLD. */
+ if (errno != EINTR)
+ pfatal_with_name (_("pselect jobs pipe"));
+ return 0;
+ }
+
+ if (r == 0)
+ /* Timeout. */
+ return 0;
+
+ /* The read FD is ready: read it! */
+ EINTRLOOP (r, read (job_fds[0], &intake, 1));
+ if (r < 0)
+ pfatal_with_name (_("read jobs pipe"));
+
+ /* What does it mean if read() returns 0? It shouldn't happen because only
+ the master make can reap all the tokens and close the write side...?? */
+ return r > 0;
+}
+
+#else
+
+/* This method uses a "traditional" UNIX model for waiting on both a signal
+ and a file descriptor. However, it's complex and since we have a SIGCHLD
+ handler installed we need to check ALL system calls for EINTR: painful!
+
+ Read a token. As long as there's no token available we'll block. We
+ enable interruptible system calls before the read(2) so that if we get a
+ SIGCHLD while we're waiting, we'll return with EINTR and we can process the
+ death(s) and return tokens to the free pool.
+
+ Once we return from the read, we immediately reinstate restartable system
+ calls. This allows us to not worry about checking for EINTR on all the
+ other system calls in the program.
+
+ There is one other twist: there is a span between the time reap_children()
+ does its last check for dead children and the time the read(2) call is
+ entered, below, where if a child dies we won't notice. This is extremely
+ serious as it could cause us to deadlock, given the right set of events.
+
+ To avoid this, we do the following: before we reap_children(), we dup(2)
+ the read FD on the jobserver pipe. The read(2) call below uses that new
+ FD. In the signal handler, we close that FD. That way, if a child dies
+ during the section mentioned above, the read(2) will be invoked with an
+ invalid FD and will return immediately with EBADF. */
+
+static RETSIGTYPE
+job_noop (int sig UNUSED)
+{
+}
+
+/* Set the child handler action flags to FLAGS. */
+static void
+set_child_handler_action_flags (int set_handler, int set_alarm)
+{
+ struct sigaction sa;
+
+#ifdef __EMX__
+ /* The child handler must be turned off here. */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+
+ memset (&sa, '\0', sizeof sa);
+ sa.sa_handler = child_handler;
+ sa.sa_flags = set_handler ? 0 : SA_RESTART;
+
+#if defined SIGCHLD
+ if (sigaction (SIGCHLD, &sa, NULL) < 0)
+ pfatal_with_name ("sigaction: SIGCHLD");
+#endif
+
+#if defined SIGCLD && SIGCLD != SIGCHLD
+ if (sigaction (SIGCLD, &sa, NULL) < 0)
+ pfatal_with_name ("sigaction: SIGCLD");
+#endif
+
+#if defined SIGALRM
+ if (set_alarm)
+ {
+ /* If we're about to enter the read(), set an alarm to wake up in a
+ second so we can check if the load has dropped and we can start more
+ work. On the way out, turn off the alarm and set SIG_DFL. */
+ if (set_handler)
+ {
+ sa.sa_handler = job_noop;
+ sa.sa_flags = 0;
+ if (sigaction (SIGALRM, &sa, NULL) < 0)
+ pfatal_with_name ("sigaction: SIGALRM");
+ alarm (1);
+ }
+ else
+ {
+ alarm (0);
+ sa.sa_handler = SIG_DFL;
+ sa.sa_flags = 0;
+ if (sigaction (SIGALRM, &sa, NULL) < 0)
+ pfatal_with_name ("sigaction: SIGALRM");
+ }
+ }
+#endif
+}
+
+unsigned int
+jobserver_acquire (int timeout)
+{
+ char intake;
+ int got_token;
+ int saved_errno;
+
+ /* Set interruptible system calls, and read() for a job token. */
+ set_child_handler_action_flags (1, timeout);
+
+ EINTRLOOP (got_token, read (job_rfd, &intake, 1));
+ saved_errno = errno;
+
+ set_child_handler_action_flags (0, timeout);
+
+ if (got_token == 1)
+ return 1;
+
+ /* If the error _wasn't_ expected (EINTR or EBADF), fatal. Otherwise,
+ go back and reap_children(), and try again. */
+ errno = saved_errno;
+
+ if (errno != EINTR && errno != EBADF)
+ pfatal_with_name (_("read jobs pipe"));
+
+ if (errno == EBADF)
+ DB (DB_JOBS, ("Read returned EBADF.\n"));
+
+ return 0;
+}
+
+#endif
+
+#endif /* MAKE_JOBSERVER */
+
+/* Create a "bad" file descriptor for stdin when parallel jobs are run. */
+int
+get_bad_stdin (void)
+{
+ static int bad_stdin = -1;
+
+ /* Set up a bad standard input that reads from a broken pipe. */
+
+ if (bad_stdin == -1)
+ {
+ /* Make a file descriptor that is the read end of a broken pipe.
+ This will be used for some children's standard inputs. */
+ int pd[2];
+ if (pipe (pd) == 0)
+ {
+ /* Close the write side. */
+ (void) close (pd[1]);
+ /* Save the read side. */
+ bad_stdin = pd[0];
+
+ /* Set the descriptor to close on exec, so it does not litter any
+ child's descriptor table. When it is dup2'd onto descriptor 0,
+ that descriptor will not close on exec. */
+ CLOSE_ON_EXEC (bad_stdin);
+ }
+ }
+
+ return bad_stdin;
+}
diff --git a/prepare_vms.com b/prepare_vms.com
new file mode 100644
index 0000000..04f581f
--- /dev/null
+++ b/prepare_vms.com
@@ -0,0 +1,59 @@
+$!
+$! prepare_vms.com - Build config.h-vms from master on VMS.
+$!
+$! This is used for building off the master instead of a release tarball.
+$!
+$!
+$!
+$! First try ODS-5, Pathworks V6 or UNZIP name.
+$!
+$ config_template = f$search("sys$disk:[]config*h-vms.template")
+$ if config_template .eqs. ""
+$ then
+$!
+$! Try NFS, VMStar, or Pathworks V5 ODS-2 encoded name.
+$!
+$ config_template = f$search("sys$disk:[]config.h-vms*template")
+$ if config_template .eqs. ""
+$ then
+$ write sys$output "Could not find config.h-vms*template!"
+$ exit 44
+$ endif
+$ endif
+$ config_template_file = f$parse(config_template,,,"name")
+$ config_template_type = f$parse(config_template,,,"type")
+$ config_template = "sys$disk:[]" + config_template_file + config_template_type
+$!
+$!
+$! Pull the package and version from configure.ac
+$!
+$ open/read ac_file sys$disk:[]configure.ac
+$ac_read_loop:
+$ read ac_file/end=ac_read_loop_end line_in
+$ key = f$extract(0, 7, line_in)
+$ if key .nes. "AC_INIT" then goto ac_read_loop
+$ package = f$element (1,"[",line_in)
+$ package = f$element (0,"]",package)
+$ version = f$element (2,"[",line_in)
+$ version = f$element (0,"]",version)
+$ac_read_loop_end:
+$ close ac_file
+$!
+$ if (package .eqs. "") .or. (version .eqs. "")
+$ then
+$ write sys$output "Unable to determine package and/or version!"
+$ exit 44
+$ endif
+$!
+$!
+$ outfile = "sys$disk:[]config.h-vms"
+$!
+$! Note the pipe command is close to the length of 255, which is the
+$! maximum token length prior to VMS V8.2:
+$! %DCL-W-TKNOVF, command element is too long - shorten
+$ pipe (write sys$output "sub/%PACKAGE%/''package'/WHOLE/NOTYPE" ;-
+ write sys$output "sub/%VERSION%/''version'/WHOLE/NOTYPE" ;-
+ write sys$output "exit") |-
+ edit/edt 'config_template'/out='outfile'/command=sys$pipe >nla0:
+$!
+$ write sys$output package, ", version: ", version, " prepared for VMS"
diff --git a/prepare_w32.bat b/prepare_w32.bat
new file mode 100644
index 0000000..7591e27
--- /dev/null
+++ b/prepare_w32.bat
@@ -0,0 +1,6 @@
+@echo off
+@echo Windows32 SCM build preparation of config.h.W32 and NMakefile.
+if not exist config.h.W32 copy config.h.W32.template config.h.W32
+if not exist config.h copy config.h.W32 config.h
+if not exist NMakefile copy NMakefile.template NMakefile
+@echo Preparation complete. Run build_w32.bat to compile and link.
diff --git a/read.c b/read.c
new file mode 100644
index 0000000..b870aa8
--- /dev/null
+++ b/read.c
@@ -0,0 +1,3355 @@
+/* Reading and parsing of makefiles for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+#include "variable.h"
+#include "rule.h"
+#include "debug.h"
+#include "hash.h"
+
+
+#ifdef WINDOWS32
+#include <windows.h>
+#include "sub_proc.h"
+#else /* !WINDOWS32 */
+#ifndef _AMIGA
+#ifndef VMS
+#include <pwd.h>
+#else
+struct passwd *getpwnam (char *name);
+#endif
+#endif
+#endif /* !WINDOWS32 */
+
+/* A 'struct ebuffer' controls the origin of the makefile we are currently
+ eval'ing.
+*/
+
+struct ebuffer
+ {
+ char *buffer; /* Start of the current line in the buffer. */
+ char *bufnext; /* Start of the next line in the buffer. */
+ char *bufstart; /* Start of the entire buffer. */
+ unsigned int size; /* Malloc'd size of buffer. */
+ FILE *fp; /* File, or NULL if this is an internal buffer. */
+ floc floc; /* Info on the file in fp (if any). */
+ };
+
+/* Track the modifiers we can have on variable assignments */
+
+struct vmodifiers
+ {
+ unsigned int assign_v:1;
+ unsigned int define_v:1;
+ unsigned int undefine_v:1;
+ unsigned int export_v:1;
+ unsigned int override_v:1;
+ unsigned int private_v:1;
+ };
+
+/* Types of "words" that can be read in a makefile. */
+enum make_word_type
+ {
+ w_bogus, w_eol, w_static, w_variable, w_colon, w_dcolon, w_semicolon,
+ w_varassign
+ };
+
+
+/* A 'struct conditionals' contains the information describing
+ all the active conditionals in a makefile.
+
+ The global variable 'conditionals' contains the conditionals
+ information for the current makefile. It is initialized from
+ the static structure 'toplevel_conditionals' and is later changed
+ to new structures for included makefiles. */
+
+struct conditionals
+ {
+ unsigned int if_cmds; /* Depth of conditional nesting. */
+ unsigned int allocated; /* Elts allocated in following arrays. */
+ char *ignoring; /* Are we ignoring or interpreting?
+ 0=interpreting, 1=not yet interpreted,
+ 2=already interpreted */
+ char *seen_else; /* Have we already seen an 'else'? */
+ };
+
+static struct conditionals toplevel_conditionals;
+static struct conditionals *conditionals = &toplevel_conditionals;
+
+
+/* Default directories to search for include files in */
+
+static const char *default_include_directories[] =
+ {
+#if defined(WINDOWS32) && !defined(INCLUDEDIR)
+/* This completely up to the user when they install MSVC or other packages.
+ This is defined as a placeholder. */
+# define INCLUDEDIR "."
+#endif
+ INCLUDEDIR,
+#ifndef _AMIGA
+ "/usr/gnu/include",
+ "/usr/local/include",
+ "/usr/include",
+#endif
+ 0
+ };
+
+/* List of directories to search for include files in */
+
+static const char **include_directories;
+
+/* Maximum length of an element of the above. */
+
+static unsigned int max_incl_len;
+
+/* The filename and pointer to line number of the
+ makefile currently being read in. */
+
+const floc *reading_file = 0;
+
+/* The chain of files read by read_all_makefiles. */
+
+static struct goaldep *read_files = 0;
+
+static struct goaldep *eval_makefile (const char *filename, int flags);
+static void eval (struct ebuffer *buffer, int flags);
+
+static long readline (struct ebuffer *ebuf);
+static void do_undefine (char *name, enum variable_origin origin,
+ struct ebuffer *ebuf);
+static struct variable *do_define (char *name, enum variable_origin origin,
+ struct ebuffer *ebuf);
+static int conditional_line (char *line, int len, const floc *flocp);
+static void record_files (struct nameseq *filenames, const char *pattern,
+ const char *pattern_percent, char *depstr,
+ unsigned int cmds_started, char *commands,
+ unsigned int commands_idx, int two_colon,
+ char prefix, const floc *flocp);
+static void record_target_var (struct nameseq *filenames, char *defn,
+ enum variable_origin origin,
+ struct vmodifiers *vmod,
+ const floc *flocp);
+static enum make_word_type get_next_mword (char *buffer, char *delim,
+ char **startp, unsigned int *length);
+static void remove_comments (char *line);
+static char *find_char_unquote (char *string, int map);
+static char *unescape_char (char *string, int c);
+
+
+/* Compare a word, both length and contents.
+ P must point to the word to be tested, and WLEN must be the length.
+*/
+#define word1eq(s) (wlen == CSTRLEN (s) && strneq (s, p, CSTRLEN (s)))
+
+
+/* Read in all the makefiles and return a chain of targets to rebuild. */
+
+struct goaldep *
+read_all_makefiles (const char **makefiles)
+{
+ unsigned int num_makefiles = 0;
+
+ /* Create *_LIST variables, to hold the makefiles, targets, and variables
+ we will be reading. */
+
+ define_variable_cname ("MAKEFILE_LIST", "", o_file, 0);
+
+ DB (DB_BASIC, (_("Reading makefiles...\n")));
+
+ /* If there's a non-null variable MAKEFILES, its value is a list of
+ files to read first thing. But don't let it prevent reading the
+ default makefiles and don't let the default goal come from there. */
+
+ {
+ char *value;
+ char *name, *p;
+ unsigned int length;
+
+ {
+ /* Turn off --warn-undefined-variables while we expand MAKEFILES. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ value = allocated_variable_expand ("$(MAKEFILES)");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ /* Set NAME to the start of next token and LENGTH to its length.
+ MAKEFILES is updated for finding remaining tokens. */
+ p = value;
+
+ while ((name = find_next_token ((const char **)&p, &length)) != 0)
+ {
+ if (*p != '\0')
+ *p++ = '\0';
+ eval_makefile (name, RM_NO_DEFAULT_GOAL|RM_INCLUDED|RM_DONTCARE);
+ }
+
+ free (value);
+ }
+
+ /* Read makefiles specified with -f switches. */
+
+ if (makefiles != 0)
+ while (*makefiles != 0)
+ {
+ struct goaldep *d = eval_makefile (*makefiles, 0);
+
+ if (errno)
+ perror_with_name ("", *makefiles);
+
+ /* Reuse the storage allocated for the read_file. */
+ *makefiles = dep_name (d);
+ ++num_makefiles;
+ ++makefiles;
+ }
+
+ /* If there were no -f switches, try the default names. */
+
+ if (num_makefiles == 0)
+ {
+ static const char *default_makefiles[] =
+#ifdef VMS
+ /* all lower case since readdir() (the vms version) 'lowercasifies' */
+ /* TODO: Above is not always true, this needs more work */
+ { "makefile.vms", "gnumakefile", "makefile", 0 };
+#else
+#ifdef _AMIGA
+ { "GNUmakefile", "Makefile", "SMakefile", 0 };
+#else /* !Amiga && !VMS */
+#ifdef WINDOWS32
+ { "GNUmakefile", "makefile", "Makefile", "makefile.mak", 0 };
+#else /* !Amiga && !VMS && !WINDOWS32 */
+ { "GNUmakefile", "makefile", "Makefile", 0 };
+#endif /* !Amiga && !VMS && !WINDOWS32 */
+#endif /* AMIGA */
+#endif /* VMS */
+ const char **p = default_makefiles;
+ while (*p != 0 && !file_exists_p (*p))
+ ++p;
+
+ if (*p != 0)
+ {
+ eval_makefile (*p, 0);
+ if (errno)
+ perror_with_name ("", *p);
+ }
+ else
+ {
+ /* No default makefile was found. Add the default makefiles to the
+ 'read_files' chain so they will be updated if possible. */
+ struct goaldep *tail = read_files;
+ /* Add them to the tail, after any MAKEFILES variable makefiles. */
+ while (tail != 0 && tail->next != 0)
+ tail = tail->next;
+ for (p = default_makefiles; *p != 0; ++p)
+ {
+ struct goaldep *d = alloc_goaldep ();
+ d->file = enter_file (strcache_add (*p));
+ /* Tell update_goal_chain to bail out as soon as this file is
+ made, and main not to die if we can't make this file. */
+ d->flags = RM_DONTCARE;
+ if (tail == 0)
+ read_files = d;
+ else
+ tail->next = d;
+ tail = d;
+ }
+ if (tail != 0)
+ tail->next = 0;
+ }
+ }
+
+ return read_files;
+}
+
+/* Install a new conditional and return the previous one. */
+
+static struct conditionals *
+install_conditionals (struct conditionals *new)
+{
+ struct conditionals *save = conditionals;
+
+ memset (new, '\0', sizeof (*new));
+ conditionals = new;
+
+ return save;
+}
+
+/* Free the current conditionals and reinstate a saved one. */
+
+static void
+restore_conditionals (struct conditionals *saved)
+{
+ /* Free any space allocated by conditional_line. */
+ free (conditionals->ignoring);
+ free (conditionals->seen_else);
+
+ /* Restore state. */
+ conditionals = saved;
+}
+
+static struct goaldep *
+eval_makefile (const char *filename, int flags)
+{
+ struct goaldep *deps;
+ struct ebuffer ebuf;
+ const floc *curfile;
+ char *expanded = 0;
+ int makefile_errno;
+
+ ebuf.floc.filenm = filename; /* Use the original file name. */
+ ebuf.floc.lineno = 1;
+ ebuf.floc.offset = 0;
+
+ if (ISDB (DB_VERBOSE))
+ {
+ printf (_("Reading makefile '%s'"), filename);
+ if (flags & RM_NO_DEFAULT_GOAL)
+ printf (_(" (no default goal)"));
+ if (flags & RM_INCLUDED)
+ printf (_(" (search path)"));
+ if (flags & RM_DONTCARE)
+ printf (_(" (don't care)"));
+ if (flags & RM_NO_TILDE)
+ printf (_(" (no ~ expansion)"));
+ puts ("...");
+ }
+
+ /* First, get a stream to read. */
+
+ /* Expand ~ in FILENAME unless it came from 'include',
+ in which case it was already done. */
+ if (!(flags & RM_NO_TILDE) && filename[0] == '~')
+ {
+ expanded = tilde_expand (filename);
+ if (expanded != 0)
+ filename = expanded;
+ }
+
+ ENULLLOOP (ebuf.fp, fopen (filename, "r"));
+
+ /* Save the error code so we print the right message later. */
+ makefile_errno = errno;
+
+ /* Check for unrecoverable errors: out of mem or FILE slots. */
+ switch (makefile_errno)
+ {
+#ifdef EMFILE
+ case EMFILE:
+#endif
+#ifdef ENFILE
+ case ENFILE:
+#endif
+ case ENOMEM:
+ {
+ const char *err = strerror (makefile_errno);
+ OS (fatal, reading_file, "%s", err);
+ }
+ }
+
+ /* If the makefile wasn't found and it's either a makefile from
+ the 'MAKEFILES' variable or an included makefile,
+ search the included makefile search path for this makefile. */
+ if (ebuf.fp == 0 && (flags & RM_INCLUDED) && *filename != '/')
+ {
+ unsigned int i;
+ for (i = 0; include_directories[i] != 0; ++i)
+ {
+ const char *included = concat (3, include_directories[i],
+ "/", filename);
+ ebuf.fp = fopen (included, "r");
+ if (ebuf.fp)
+ {
+ filename = included;
+ break;
+ }
+ }
+ }
+
+ /* Now we have the final name for this makefile. Enter it into
+ the cache. */
+ filename = strcache_add (filename);
+
+ /* Add FILENAME to the chain of read makefiles. */
+ deps = alloc_goaldep ();
+ deps->next = read_files;
+ read_files = deps;
+ deps->file = lookup_file (filename);
+ if (deps->file == 0)
+ deps->file = enter_file (filename);
+ filename = deps->file->name;
+ deps->flags = flags;
+
+ free (expanded);
+
+ /* If the makefile can't be found at all, give up entirely. */
+
+ if (ebuf.fp == 0)
+ {
+ /* If we did some searching, errno has the error from the last
+ attempt, rather from FILENAME itself. Store it in case the
+ caller wants to use it in a message. */
+ errno = makefile_errno;
+ return deps;
+ }
+
+ /* Set close-on-exec to avoid leaking the makefile to children, such as
+ $(shell ...). */
+#ifdef HAVE_FILENO
+ CLOSE_ON_EXEC (fileno (ebuf.fp));
+#endif
+
+ /* Add this makefile to the list. */
+ do_variable_definition (&ebuf.floc, "MAKEFILE_LIST", filename, o_file,
+ f_append, 0);
+
+ /* Evaluate the makefile */
+
+ ebuf.size = 200;
+ ebuf.buffer = ebuf.bufnext = ebuf.bufstart = xmalloc (ebuf.size);
+
+ curfile = reading_file;
+ reading_file = &ebuf.floc;
+
+ eval (&ebuf, !(flags & RM_NO_DEFAULT_GOAL));
+
+ reading_file = curfile;
+
+ fclose (ebuf.fp);
+
+ free (ebuf.bufstart);
+ alloca (0);
+
+ errno = 0;
+ return deps;
+}
+
+void
+eval_buffer (char *buffer, const floc *flocp)
+{
+ struct ebuffer ebuf;
+ struct conditionals *saved;
+ struct conditionals new;
+ const floc *curfile;
+
+ /* Evaluate the buffer */
+
+ ebuf.size = strlen (buffer);
+ ebuf.buffer = ebuf.bufnext = ebuf.bufstart = buffer;
+ ebuf.fp = NULL;
+
+ if (flocp)
+ ebuf.floc = *flocp;
+ else if (reading_file)
+ ebuf.floc = *reading_file;
+ else
+ {
+ ebuf.floc.filenm = NULL;
+ ebuf.floc.lineno = 1;
+ ebuf.floc.offset = 0;
+ }
+
+ curfile = reading_file;
+ reading_file = &ebuf.floc;
+
+ saved = install_conditionals (&new);
+
+ eval (&ebuf, 1);
+
+ restore_conditionals (saved);
+
+ reading_file = curfile;
+
+ alloca (0);
+}
+
+/* Check LINE to see if it's a variable assignment or undefine.
+
+ It might use one of the modifiers "export", "override", "private", or it
+ might be one of the conditional tokens like "ifdef", "include", etc.
+
+ If it's not a variable assignment or undefine, VMOD.V_ASSIGN is 0.
+ Returns LINE.
+
+ Returns a pointer to the first non-modifier character, and sets VMOD
+ based on the modifiers found if any, plus V_ASSIGN is 1.
+ */
+static char *
+parse_var_assignment (const char *line, struct vmodifiers *vmod)
+{
+ const char *p;
+ memset (vmod, '\0', sizeof (*vmod));
+
+ /* Find the start of the next token. If there isn't one we're done. */
+ NEXT_TOKEN (line);
+ if (*line == '\0')
+ return (char *)line;
+
+ p = line;
+ while (1)
+ {
+ int wlen;
+ const char *p2;
+ struct variable v;
+
+ p2 = parse_variable_definition (p, &v);
+
+ /* If this is a variable assignment, we're done. */
+ if (p2)
+ break;
+
+ /* It's not a variable; see if it's a modifier. */
+ p2 = end_of_token (p);
+ wlen = p2 - p;
+
+ if (word1eq ("export"))
+ vmod->export_v = 1;
+ else if (word1eq ("override"))
+ vmod->override_v = 1;
+ else if (word1eq ("private"))
+ vmod->private_v = 1;
+ else if (word1eq ("define"))
+ {
+ /* We can't have modifiers after 'define' */
+ vmod->define_v = 1;
+ p = next_token (p2);
+ break;
+ }
+ else if (word1eq ("undefine"))
+ {
+ /* We can't have modifiers after 'undefine' */
+ vmod->undefine_v = 1;
+ p = next_token (p2);
+ break;
+ }
+ else
+ /* Not a variable or modifier: this is not a variable assignment. */
+ return (char *)line;
+
+ /* It was a modifier. Try the next word. */
+ p = next_token (p2);
+ if (*p == '\0')
+ return (char *)line;
+ }
+
+ /* Found a variable assignment or undefine. */
+ vmod->assign_v = 1;
+ return (char *)p;
+}
+
+
+/* Read file FILENAME as a makefile and add its contents to the data base.
+
+ SET_DEFAULT is true if we are allowed to set the default goal. */
+
+static void
+eval (struct ebuffer *ebuf, int set_default)
+{
+ char *collapsed = 0;
+ unsigned int collapsed_length = 0;
+ unsigned int commands_len = 200;
+ char *commands;
+ unsigned int commands_idx = 0;
+ unsigned int cmds_started, tgts_started;
+ int ignoring = 0, in_ignored_define = 0;
+ int no_targets = 0; /* Set when reading a rule without targets. */
+ struct nameseq *filenames = 0;
+ char *depstr = 0;
+ long nlines = 0;
+ int two_colon = 0;
+ char prefix = cmd_prefix;
+ const char *pattern = 0;
+ const char *pattern_percent;
+ floc *fstart;
+ floc fi;
+
+#define record_waiting_files() \
+ do \
+ { \
+ if (filenames != 0) \
+ { \
+ fi.lineno = tgts_started; \
+ fi.offset = 0; \
+ record_files (filenames, pattern, pattern_percent, depstr, \
+ cmds_started, commands, commands_idx, two_colon, \
+ prefix, &fi); \
+ filenames = 0; \
+ } \
+ commands_idx = 0; \
+ no_targets = 0; \
+ pattern = 0; \
+ } while (0)
+
+ pattern_percent = 0;
+ cmds_started = tgts_started = 1;
+
+ fstart = &ebuf->floc;
+ fi.filenm = ebuf->floc.filenm;
+
+ /* Loop over lines in the file.
+ The strategy is to accumulate target names in FILENAMES, dependencies
+ in DEPS and commands in COMMANDS. These are used to define a rule
+ when the start of the next rule (or eof) is encountered.
+
+ When you see a "continue" in the loop below, that means we are moving on
+ to the next line. If you see record_waiting_files(), then the statement
+ we are parsing also finishes the previous rule. */
+
+ commands = xmalloc (200);
+
+ while (1)
+ {
+ unsigned int linelen;
+ char *line;
+ unsigned int wlen;
+ char *p;
+ char *p2;
+ struct vmodifiers vmod;
+
+ /* At the top of this loop, we are starting a brand new line. */
+ /* Grab the next line to be evaluated */
+ ebuf->floc.lineno += nlines;
+ nlines = readline (ebuf);
+
+ /* If there is nothing left to eval, we're done. */
+ if (nlines < 0)
+ break;
+
+ line = ebuf->buffer;
+
+ /* If this is the first line, check for a UTF-8 BOM and skip it. */
+ if (ebuf->floc.lineno == 1 && line[0] == (char)0xEF
+ && line[1] == (char)0xBB && line[2] == (char)0xBF)
+ {
+ line += 3;
+ if (ISDB(DB_BASIC))
+ {
+ if (ebuf->floc.filenm)
+ printf (_("Skipping UTF-8 BOM in makefile '%s'\n"),
+ ebuf->floc.filenm);
+ else
+ printf (_("Skipping UTF-8 BOM in makefile buffer\n"));
+ }
+ }
+
+ /* If this line is empty, skip it. */
+ if (line[0] == '\0')
+ continue;
+
+ linelen = strlen (line);
+
+ /* Check for a shell command line first.
+ If it is not one, we can stop treating cmd_prefix specially. */
+ if (line[0] == cmd_prefix)
+ {
+ if (no_targets)
+ /* Ignore the commands in a rule with no targets. */
+ continue;
+
+ /* If there is no preceding rule line, don't treat this line
+ as a command, even though it begins with a recipe prefix.
+ SunOS 4 make appears to behave this way. */
+
+ if (filenames != 0)
+ {
+ if (ignoring)
+ /* Yep, this is a shell command, and we don't care. */
+ continue;
+
+ if (commands_idx == 0)
+ cmds_started = ebuf->floc.lineno;
+
+ /* Append this command line to the line being accumulated.
+ Skip the initial command prefix character. */
+ if (linelen + commands_idx > commands_len)
+ {
+ commands_len = (linelen + commands_idx) * 2;
+ commands = xrealloc (commands, commands_len);
+ }
+ memcpy (&commands[commands_idx], line + 1, linelen - 1);
+ commands_idx += linelen - 1;
+ commands[commands_idx++] = '\n';
+ continue;
+ }
+ }
+
+ /* This line is not a shell command line. Don't worry about whitespace.
+ Get more space if we need it; we don't need to preserve the current
+ contents of the buffer. */
+
+ if (collapsed_length < linelen+1)
+ {
+ collapsed_length = linelen+1;
+ free (collapsed);
+ /* Don't need xrealloc: we don't need to preserve the content. */
+ collapsed = xmalloc (collapsed_length);
+ }
+ strcpy (collapsed, line);
+ /* Collapse continuation lines. */
+ collapse_continuations (collapsed);
+ remove_comments (collapsed);
+
+ /* Get rid if starting space (including formfeed, vtab, etc.) */
+ p = collapsed;
+ NEXT_TOKEN (p);
+
+ /* See if this is a variable assignment. We need to do this early, to
+ allow variables with names like 'ifdef', 'export', 'private', etc. */
+ p = parse_var_assignment (p, &vmod);
+ if (vmod.assign_v)
+ {
+ struct variable *v;
+ enum variable_origin origin = vmod.override_v ? o_override : o_file;
+
+ /* If we're ignoring then we're done now. */
+ if (ignoring)
+ {
+ if (vmod.define_v)
+ in_ignored_define = 1;
+ continue;
+ }
+
+ /* Variable assignment ends the previous rule. */
+ record_waiting_files ();
+
+ if (vmod.undefine_v)
+ {
+ do_undefine (p, origin, ebuf);
+ continue;
+ }
+ else if (vmod.define_v)
+ v = do_define (p, origin, ebuf);
+ else
+ v = try_variable_definition (fstart, p, origin, 0);
+
+ assert (v != NULL);
+
+ if (vmod.export_v)
+ v->export = v_export;
+ if (vmod.private_v)
+ v->private_var = 1;
+
+ /* This line has been dealt with. */
+ continue;
+ }
+
+ /* If this line is completely empty, ignore it. */
+ if (*p == '\0')
+ continue;
+
+ p2 = end_of_token (p);
+ wlen = p2 - p;
+ NEXT_TOKEN (p2);
+
+ /* If we're in an ignored define, skip this line (but maybe get out). */
+ if (in_ignored_define)
+ {
+ /* See if this is an endef line (plus optional comment). */
+ if (word1eq ("endef") && STOP_SET (*p2, MAP_COMMENT|MAP_NUL))
+ in_ignored_define = 0;
+
+ continue;
+ }
+
+ /* Check for conditional state changes. */
+ {
+ int i = conditional_line (p, wlen, fstart);
+ if (i != -2)
+ {
+ if (i == -1)
+ O (fatal, fstart, _("invalid syntax in conditional"));
+
+ ignoring = i;
+ continue;
+ }
+ }
+
+ /* Nothing to see here... move along. */
+ if (ignoring)
+ continue;
+
+ /* Manage the "export" keyword used outside of variable assignment
+ as well as "unexport". */
+ if (word1eq ("export") || word1eq ("unexport"))
+ {
+ int exporting = *p == 'u' ? 0 : 1;
+
+ /* Export/unexport ends the previous rule. */
+ record_waiting_files ();
+
+ /* (un)export by itself causes everything to be (un)exported. */
+ if (*p2 == '\0')
+ export_all_variables = exporting;
+ else
+ {
+ unsigned int l;
+ const char *cp;
+ char *ap;
+
+ /* Expand the line so we can use indirect and constructed
+ variable names in an (un)export command. */
+ cp = ap = allocated_variable_expand (p2);
+
+ for (p = find_next_token (&cp, &l); p != 0;
+ p = find_next_token (&cp, &l))
+ {
+ struct variable *v = lookup_variable (p, l);
+ if (v == 0)
+ v = define_variable_global (p, l, "", o_file, 0, fstart);
+ v->export = exporting ? v_export : v_noexport;
+ }
+
+ free (ap);
+ }
+ continue;
+ }
+
+ /* Handle the special syntax for vpath. */
+ if (word1eq ("vpath"))
+ {
+ const char *cp;
+ char *vpat;
+ unsigned int l;
+
+ /* vpath ends the previous rule. */
+ record_waiting_files ();
+
+ cp = variable_expand (p2);
+ p = find_next_token (&cp, &l);
+ if (p != 0)
+ {
+ vpat = xstrndup (p, l);
+ p = find_next_token (&cp, &l);
+ /* No searchpath means remove all previous
+ selective VPATH's with the same pattern. */
+ }
+ else
+ /* No pattern means remove all previous selective VPATH's. */
+ vpat = 0;
+ construct_vpath_list (vpat, p);
+ free (vpat);
+
+ continue;
+ }
+
+ /* Handle include and variants. */
+ if (word1eq ("include") || word1eq ("-include") || word1eq ("sinclude"))
+ {
+ /* We have found an 'include' line specifying a nested
+ makefile to be read at this point. */
+ struct conditionals *save;
+ struct conditionals new_conditionals;
+ struct nameseq *files;
+ /* "-include" (vs "include") says no error if the file does not
+ exist. "sinclude" is an alias for this from SGI. */
+ int noerror = (p[0] != 'i');
+
+ /* Include ends the previous rule. */
+ record_waiting_files ();
+
+ p = allocated_variable_expand (p2);
+
+ /* If no filenames, it's a no-op. */
+ if (*p == '\0')
+ {
+ free (p);
+ continue;
+ }
+
+ /* Parse the list of file names. Don't expand archive references! */
+ p2 = p;
+ files = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_NUL, NULL,
+ PARSEFS_NOAR);
+ free (p);
+
+ /* Save the state of conditionals and start
+ the included makefile with a clean slate. */
+ save = install_conditionals (&new_conditionals);
+
+ /* Record the rules that are waiting so they will determine
+ the default goal before those in the included makefile. */
+ record_waiting_files ();
+
+ /* Read each included makefile. */
+ while (files != 0)
+ {
+ struct nameseq *next = files->next;
+ int flags = (RM_INCLUDED | RM_NO_TILDE
+ | (noerror ? RM_DONTCARE : 0)
+ | (set_default ? 0 : RM_NO_DEFAULT_GOAL));
+
+ struct goaldep *d = eval_makefile (files->name, flags);
+
+ if (errno)
+ {
+ d->error = (unsigned short)errno;
+ d->floc = *fstart;
+ }
+
+ free_ns (files);
+ files = next;
+ }
+
+ /* Restore conditional state. */
+ restore_conditionals (save);
+
+ continue;
+ }
+
+ /* Handle the load operations. */
+ if (word1eq ("load") || word1eq ("-load"))
+ {
+ /* A 'load' line specifies a dynamic object to load. */
+ struct nameseq *files;
+ int noerror = (p[0] == '-');
+
+ /* Load ends the previous rule. */
+ record_waiting_files ();
+
+ p = allocated_variable_expand (p2);
+
+ /* If no filenames, it's a no-op. */
+ if (*p == '\0')
+ {
+ free (p);
+ continue;
+ }
+
+ /* Parse the list of file names.
+ Don't expand archive references or strip "./" */
+ p2 = p;
+ files = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_NUL, NULL,
+ PARSEFS_NOAR);
+ free (p);
+
+ /* Load each file. */
+ while (files != 0)
+ {
+ struct nameseq *next = files->next;
+ const char *name = files->name;
+ struct goaldep *deps;
+ int r;
+
+ /* Load the file. 0 means failure. */
+ r = load_file (&ebuf->floc, &name, noerror);
+ if (! r && ! noerror)
+ OS (fatal, &ebuf->floc, _("%s: failed to load"), name);
+
+ free_ns (files);
+ files = next;
+
+ /* Return of -1 means a special load: don't rebuild it. */
+ if (r == -1)
+ continue;
+
+ /* It succeeded, so add it to the list "to be rebuilt". */
+ deps = alloc_goaldep ();
+ deps->next = read_files;
+ read_files = deps;
+ deps->file = lookup_file (name);
+ if (deps->file == 0)
+ deps->file = enter_file (name);
+ deps->file->loaded = 1;
+ }
+
+ continue;
+ }
+
+ /* This line starts with a tab but was not caught above because there
+ was no preceding target, and the line might have been usable as a
+ variable definition. But now we know it is definitely lossage. */
+ if (line[0] == cmd_prefix)
+ O (fatal, fstart, _("recipe commences before first target"));
+
+ /* This line describes some target files. This is complicated by
+ the existence of target-specific variables, because we can't
+ expand the entire line until we know if we have one or not. So
+ we expand the line word by word until we find the first ':',
+ then check to see if it's a target-specific variable.
+
+ In this algorithm, 'lb_next' will point to the beginning of the
+ unexpanded parts of the input buffer, while 'p2' points to the
+ parts of the expanded buffer we haven't searched yet. */
+
+ {
+ enum make_word_type wtype;
+ char *cmdleft, *semip, *lb_next;
+ unsigned int plen = 0;
+ char *colonp;
+ const char *end, *beg; /* Helpers for whitespace stripping. */
+
+ /* Record the previous rule. */
+
+ record_waiting_files ();
+ tgts_started = fstart->lineno;
+
+ /* Search the line for an unquoted ; that is not after an
+ unquoted #. */
+ cmdleft = find_char_unquote (line, MAP_SEMI|MAP_COMMENT|MAP_VARIABLE);
+ if (cmdleft != 0 && *cmdleft == '#')
+ {
+ /* We found a comment before a semicolon. */
+ *cmdleft = '\0';
+ cmdleft = 0;
+ }
+ else if (cmdleft != 0)
+ /* Found one. Cut the line short there before expanding it. */
+ *(cmdleft++) = '\0';
+ semip = cmdleft;
+
+ collapse_continuations (line);
+
+ /* We can't expand the entire line, since if it's a per-target
+ variable we don't want to expand it. So, walk from the
+ beginning, expanding as we go, and looking for "interesting"
+ chars. The first word is always expandable. */
+ wtype = get_next_mword (line, NULL, &lb_next, &wlen);
+ switch (wtype)
+ {
+ case w_eol:
+ if (cmdleft != 0)
+ O (fatal, fstart, _("missing rule before recipe"));
+ /* This line contained something but turned out to be nothing
+ but whitespace (a comment?). */
+ continue;
+
+ case w_colon:
+ case w_dcolon:
+ /* We accept and ignore rules without targets for
+ compatibility with SunOS 4 make. */
+ no_targets = 1;
+ continue;
+
+ default:
+ break;
+ }
+
+ p2 = variable_expand_string (NULL, lb_next, wlen);
+
+ while (1)
+ {
+ lb_next += wlen;
+ if (cmdleft == 0)
+ {
+ /* Look for a semicolon in the expanded line. */
+ cmdleft = find_char_unquote (p2, MAP_SEMI);
+
+ if (cmdleft != 0)
+ {
+ unsigned long p2_off = p2 - variable_buffer;
+ unsigned long cmd_off = cmdleft - variable_buffer;
+ char *pend = p2 + strlen (p2);
+
+ /* Append any remnants of lb, then cut the line short
+ at the semicolon. */
+ *cmdleft = '\0';
+
+ /* One school of thought says that you shouldn't expand
+ here, but merely copy, since now you're beyond a ";"
+ and into a command script. However, the old parser
+ expanded the whole line, so we continue that for
+ backwards-compatibility. Also, it wouldn't be
+ entirely consistent, since we do an unconditional
+ expand below once we know we don't have a
+ target-specific variable. */
+ (void)variable_expand_string (pend, lb_next, (long)-1);
+ lb_next += strlen (lb_next);
+ p2 = variable_buffer + p2_off;
+ cmdleft = variable_buffer + cmd_off + 1;
+ }
+ }
+
+ colonp = find_char_unquote (p2, MAP_COLON);
+#ifdef HAVE_DOS_PATHS
+ /* The drive spec brain-damage strikes again... */
+ /* Note that the only separators of targets in this context
+ are whitespace and a left paren. If others are possible,
+ they should be added to the string in the call to index. */
+ while (colonp && (colonp[1] == '/' || colonp[1] == '\\') &&
+ colonp > p2 && isalpha ((unsigned char)colonp[-1]) &&
+ (colonp == p2 + 1 || strchr (" \t(", colonp[-2]) != 0))
+ colonp = find_char_unquote (colonp + 1, MAP_COLON);
+#endif
+ if (colonp != 0)
+ break;
+
+ wtype = get_next_mword (lb_next, NULL, &lb_next, &wlen);
+ if (wtype == w_eol)
+ break;
+
+ p2 += strlen (p2);
+ *(p2++) = ' ';
+ p2 = variable_expand_string (p2, lb_next, wlen);
+ /* We don't need to worry about cmdleft here, because if it was
+ found in the variable_buffer the entire buffer has already
+ been expanded... we'll never get here. */
+ }
+
+ p2 = next_token (variable_buffer);
+
+ /* If the word we're looking at is EOL, see if there's _anything_
+ on the line. If not, a variable expanded to nothing, so ignore
+ it. If so, we can't parse this line so punt. */
+ if (wtype == w_eol)
+ {
+ if (*p2 == '\0')
+ continue;
+
+ /* There's no need to be ivory-tower about this: check for
+ one of the most common bugs found in makefiles... */
+ if (cmd_prefix == '\t' && strneq (line, " ", 8))
+ O (fatal, fstart, _("missing separator (did you mean TAB instead of 8 spaces?)"));
+ else
+ O (fatal, fstart, _("missing separator"));
+ }
+
+ /* Make the colon the end-of-string so we know where to stop
+ looking for targets. Start there again once we're done. */
+ *colonp = '\0';
+ filenames = PARSE_SIMPLE_SEQ (&p2, struct nameseq);
+ *colonp = ':';
+ p2 = colonp;
+
+ if (!filenames)
+ {
+ /* We accept and ignore rules without targets for
+ compatibility with SunOS 4 make. */
+ no_targets = 1;
+ continue;
+ }
+ /* This should never be possible; we handled it above. */
+ assert (*p2 != '\0');
+ ++p2;
+
+ /* Is this a one-colon or two-colon entry? */
+ two_colon = *p2 == ':';
+ if (two_colon)
+ p2++;
+
+ /* Test to see if it's a target-specific variable. Copy the rest
+ of the buffer over, possibly temporarily (we'll expand it later
+ if it's not a target-specific variable). PLEN saves the length
+ of the unparsed section of p2, for later. */
+ if (*lb_next != '\0')
+ {
+ unsigned int l = p2 - variable_buffer;
+ plen = strlen (p2);
+ variable_buffer_output (p2+plen, lb_next, strlen (lb_next)+1);
+ p2 = variable_buffer + l;
+ }
+
+ p2 = parse_var_assignment (p2, &vmod);
+ if (vmod.assign_v)
+ {
+ /* If there was a semicolon found, add it back, plus anything
+ after it. */
+ if (semip)
+ {
+ unsigned int l = p2 - variable_buffer;
+ *(--semip) = ';';
+ collapse_continuations (semip);
+ variable_buffer_output (p2 + strlen (p2),
+ semip, strlen (semip)+1);
+ p2 = variable_buffer + l;
+ }
+ record_target_var (filenames, p2,
+ vmod.override_v ? o_override : o_file,
+ &vmod, fstart);
+ filenames = 0;
+ continue;
+ }
+
+ /* This is a normal target, _not_ a target-specific variable.
+ Unquote any = in the dependency list. */
+ find_char_unquote (lb_next, MAP_EQUALS);
+
+ /* Remember the command prefix for this target. */
+ prefix = cmd_prefix;
+
+ /* We have some targets, so don't ignore the following commands. */
+ no_targets = 0;
+
+ /* Expand the dependencies, etc. */
+ if (*lb_next != '\0')
+ {
+ unsigned int l = p2 - variable_buffer;
+ (void) variable_expand_string (p2 + plen, lb_next, (long)-1);
+ p2 = variable_buffer + l;
+
+ /* Look for a semicolon in the expanded line. */
+ if (cmdleft == 0)
+ {
+ cmdleft = find_char_unquote (p2, MAP_SEMI);
+ if (cmdleft != 0)
+ *(cmdleft++) = '\0';
+ }
+ }
+
+ /* Is this a static pattern rule: 'target: %targ: %dep; ...'? */
+ p = strchr (p2, ':');
+ while (p != 0 && p[-1] == '\\')
+ {
+ char *q = &p[-1];
+ int backslash = 0;
+ while (*q-- == '\\')
+ backslash = !backslash;
+ if (backslash)
+ p = strchr (p + 1, ':');
+ else
+ break;
+ }
+#ifdef _AMIGA
+ /* Here, the situation is quite complicated. Let's have a look
+ at a couple of targets:
+
+ install: dev:make
+
+ dev:make: make
+
+ dev:make:: xyz
+
+ The rule is that it's only a target, if there are TWO :'s
+ OR a space around the :.
+ */
+ if (p && !(ISSPACE (p[1]) || !p[1] || ISSPACE (p[-1])))
+ p = 0;
+#endif
+#ifdef HAVE_DOS_PATHS
+ {
+ int check_again;
+ do {
+ check_again = 0;
+ /* For DOS-style paths, skip a "C:\..." or a "C:/..." */
+ if (p != 0 && (p[1] == '\\' || p[1] == '/') &&
+ isalpha ((unsigned char)p[-1]) &&
+ (p == p2 + 1 || strchr (" \t:(", p[-2]) != 0)) {
+ p = strchr (p + 1, ':');
+ check_again = 1;
+ }
+ } while (check_again);
+ }
+#endif
+ if (p != 0)
+ {
+ struct nameseq *target;
+ target = PARSE_FILE_SEQ (&p2, struct nameseq, MAP_COLON, NULL,
+ PARSEFS_NOGLOB);
+ ++p2;
+ if (target == 0)
+ O (fatal, fstart, _("missing target pattern"));
+ else if (target->next != 0)
+ O (fatal, fstart, _("multiple target patterns"));
+ pattern_percent = find_percent_cached (&target->name);
+ pattern = target->name;
+ if (pattern_percent == 0)
+ O (fatal, fstart, _("target pattern contains no '%%'"));
+ free_ns (target);
+ }
+ else
+ pattern = 0;
+
+ /* Strip leading and trailing whitespaces. */
+ beg = p2;
+ end = beg + strlen (beg) - 1;
+ strip_whitespace (&beg, &end);
+
+ /* Put all the prerequisites here; they'll be parsed later. */
+ if (beg <= end && *beg != '\0')
+ depstr = xstrndup (beg, end - beg + 1);
+ else
+ depstr = 0;
+
+ commands_idx = 0;
+ if (cmdleft != 0)
+ {
+ /* Semicolon means rest of line is a command. */
+ unsigned int l = strlen (cmdleft);
+
+ cmds_started = fstart->lineno;
+
+ /* Add this command line to the buffer. */
+ if (l + 2 > commands_len)
+ {
+ commands_len = (l + 2) * 2;
+ commands = xrealloc (commands, commands_len);
+ }
+ memcpy (commands, cmdleft, l);
+ commands_idx += l;
+ commands[commands_idx++] = '\n';
+ }
+
+ /* Determine if this target should be made default. We used to do
+ this in record_files() but because of the delayed target recording
+ and because preprocessor directives are legal in target's commands
+ it is too late. Consider this fragment for example:
+
+ foo:
+
+ ifeq ($(.DEFAULT_GOAL),foo)
+ ...
+ endif
+
+ Because the target is not recorded until after ifeq directive is
+ evaluated the .DEFAULT_GOAL does not contain foo yet as one
+ would expect. Because of this we have to move the logic here. */
+
+ if (set_default && default_goal_var->value[0] == '\0')
+ {
+ struct dep *d;
+ struct nameseq *t = filenames;
+
+ for (; t != 0; t = t->next)
+ {
+ int reject = 0;
+ const char *name = t->name;
+
+ /* We have nothing to do if this is an implicit rule. */
+ if (strchr (name, '%') != 0)
+ break;
+
+ /* See if this target's name does not start with a '.',
+ unless it contains a slash. */
+ if (*name == '.' && strchr (name, '/') == 0
+#ifdef HAVE_DOS_PATHS
+ && strchr (name, '\\') == 0
+#endif
+ )
+ continue;
+
+
+ /* If this file is a suffix, don't let it be
+ the default goal file. */
+ for (d = suffix_file->deps; d != 0; d = d->next)
+ {
+ register struct dep *d2;
+ if (*dep_name (d) != '.' && streq (name, dep_name (d)))
+ {
+ reject = 1;
+ break;
+ }
+ for (d2 = suffix_file->deps; d2 != 0; d2 = d2->next)
+ {
+ unsigned int l = strlen (dep_name (d2));
+ if (!strneq (name, dep_name (d2), l))
+ continue;
+ if (streq (name + l, dep_name (d)))
+ {
+ reject = 1;
+ break;
+ }
+ }
+
+ if (reject)
+ break;
+ }
+
+ if (!reject)
+ {
+ define_variable_global (".DEFAULT_GOAL", 13, t->name,
+ o_file, 0, NILF);
+ break;
+ }
+ }
+ }
+
+ continue;
+ }
+
+ /* We get here except in the case that we just read a rule line.
+ Record now the last rule we read, so following spurious
+ commands are properly diagnosed. */
+ record_waiting_files ();
+ }
+
+#undef word1eq
+
+ if (conditionals->if_cmds)
+ O (fatal, fstart, _("missing 'endif'"));
+
+ /* At eof, record the last rule. */
+ record_waiting_files ();
+
+ free (collapsed);
+ free (commands);
+}
+
+
+/* Remove comments from LINE.
+ This is done by copying the text at LINE onto itself. */
+
+static void
+remove_comments (char *line)
+{
+ char *comment;
+
+ comment = find_char_unquote (line, MAP_COMMENT);
+
+ if (comment != 0)
+ /* Cut off the line at the #. */
+ *comment = '\0';
+}
+
+/* Execute a 'undefine' directive.
+ The undefine line has already been read, and NAME is the name of
+ the variable to be undefined. */
+
+static void
+do_undefine (char *name, enum variable_origin origin, struct ebuffer *ebuf)
+{
+ char *p, *var;
+
+ /* Expand the variable name and find the beginning (NAME) and end. */
+ var = allocated_variable_expand (name);
+ name = next_token (var);
+ if (*name == '\0')
+ O (fatal, &ebuf->floc, _("empty variable name"));
+ p = name + strlen (name) - 1;
+ while (p > name && ISBLANK (*p))
+ --p;
+ p[1] = '\0';
+
+ undefine_variable_global (name, p - name + 1, origin);
+ free (var);
+}
+
+/* Execute a 'define' directive.
+ The first line has already been read, and NAME is the name of
+ the variable to be defined. The following lines remain to be read. */
+
+static struct variable *
+do_define (char *name, enum variable_origin origin, struct ebuffer *ebuf)
+{
+ struct variable *v;
+ struct variable var;
+ floc defstart;
+ int nlevels = 1;
+ unsigned int length = 100;
+ char *definition = xmalloc (length);
+ unsigned int idx = 0;
+ char *p, *n;
+
+ defstart = ebuf->floc;
+
+ p = parse_variable_definition (name, &var);
+ if (p == NULL)
+ /* No assignment token, so assume recursive. */
+ var.flavor = f_recursive;
+ else
+ {
+ if (var.value[0] != '\0')
+ O (error, &defstart, _("extraneous text after 'define' directive"));
+
+ /* Chop the string before the assignment token to get the name. */
+ var.name[var.length] = '\0';
+ }
+
+ /* Expand the variable name and find the beginning (NAME) and end. */
+ n = allocated_variable_expand (name);
+ name = next_token (n);
+ if (name[0] == '\0')
+ O (fatal, &defstart, _("empty variable name"));
+ p = name + strlen (name) - 1;
+ while (p > name && ISBLANK (*p))
+ --p;
+ p[1] = '\0';
+
+ /* Now read the value of the variable. */
+ while (1)
+ {
+ unsigned int len;
+ char *line;
+ long nlines = readline (ebuf);
+
+ /* If there is nothing left to be eval'd, there's no 'endef'!! */
+ if (nlines < 0)
+ O (fatal, &defstart, _("missing 'endef', unterminated 'define'"));
+
+ ebuf->floc.lineno += nlines;
+ line = ebuf->buffer;
+
+ collapse_continuations (line);
+
+ /* If the line doesn't begin with a tab, test to see if it introduces
+ another define, or ends one. Stop if we find an 'endef' */
+ if (line[0] != cmd_prefix)
+ {
+ p = next_token (line);
+ len = strlen (p);
+
+ /* If this is another 'define', increment the level count. */
+ if ((len == 6 || (len > 6 && ISBLANK (p[6])))
+ && strneq (p, "define", 6))
+ ++nlevels;
+
+ /* If this is an 'endef', decrement the count. If it's now 0,
+ we've found the last one. */
+ else if ((len == 5 || (len > 5 && ISBLANK (p[5])))
+ && strneq (p, "endef", 5))
+ {
+ p += 5;
+ remove_comments (p);
+ if (*(next_token (p)) != '\0')
+ O (error, &ebuf->floc,
+ _("extraneous text after 'endef' directive"));
+
+ if (--nlevels == 0)
+ break;
+ }
+ }
+
+ /* Add this line to the variable definition. */
+ len = strlen (line);
+ if (idx + len + 1 > length)
+ {
+ length = (idx + len) * 2;
+ definition = xrealloc (definition, length + 1);
+ }
+
+ memcpy (&definition[idx], line, len);
+ idx += len;
+ /* Separate lines with a newline. */
+ definition[idx++] = '\n';
+ }
+
+ /* We've got what we need; define the variable. */
+ if (idx == 0)
+ definition[0] = '\0';
+ else
+ definition[idx - 1] = '\0';
+
+ v = do_variable_definition (&defstart, name,
+ definition, origin, var.flavor, 0);
+ free (definition);
+ free (n);
+ return (v);
+}
+
+/* Interpret conditional commands "ifdef", "ifndef", "ifeq",
+ "ifneq", "else" and "endif".
+ LINE is the input line, with the command as its first word.
+
+ FILENAME and LINENO are the filename and line number in the
+ current makefile. They are used for error messages.
+
+ Value is -2 if the line is not a conditional at all,
+ -1 if the line is an invalid conditional,
+ 0 if following text should be interpreted,
+ 1 if following text should be ignored. */
+
+static int
+conditional_line (char *line, int len, const floc *flocp)
+{
+ const char *cmdname;
+ enum { c_ifdef, c_ifndef, c_ifeq, c_ifneq, c_else, c_endif } cmdtype;
+ unsigned int i;
+ unsigned int o;
+
+ /* Compare a word, both length and contents. */
+#define word1eq(s) (len == CSTRLEN (s) && strneq (s, line, CSTRLEN (s)))
+#define chkword(s, t) if (word1eq (s)) { cmdtype = (t); cmdname = (s); }
+
+ /* Make sure this line is a conditional. */
+ chkword ("ifdef", c_ifdef)
+ else chkword ("ifndef", c_ifndef)
+ else chkword ("ifeq", c_ifeq)
+ else chkword ("ifneq", c_ifneq)
+ else chkword ("else", c_else)
+ else chkword ("endif", c_endif)
+ else
+ return -2;
+
+ /* Found one: skip past it and any whitespace after it. */
+ line += len;
+ NEXT_TOKEN (line);
+
+#define EXTRATEXT() OS (error, flocp, _("extraneous text after '%s' directive"), cmdname)
+#define EXTRACMD() OS (fatal, flocp, _("extraneous '%s'"), cmdname)
+
+ /* An 'endif' cannot contain extra text, and reduces the if-depth by 1 */
+ if (cmdtype == c_endif)
+ {
+ if (*line != '\0')
+ EXTRATEXT ();
+
+ if (!conditionals->if_cmds)
+ EXTRACMD ();
+
+ --conditionals->if_cmds;
+
+ goto DONE;
+ }
+
+ /* An 'else' statement can either be simple, or it can have another
+ conditional after it. */
+ if (cmdtype == c_else)
+ {
+ const char *p;
+
+ if (!conditionals->if_cmds)
+ EXTRACMD ();
+
+ o = conditionals->if_cmds - 1;
+
+ if (conditionals->seen_else[o])
+ O (fatal, flocp, _("only one 'else' per conditional"));
+
+ /* Change the state of ignorance. */
+ switch (conditionals->ignoring[o])
+ {
+ case 0:
+ /* We've just been interpreting. Never do it again. */
+ conditionals->ignoring[o] = 2;
+ break;
+ case 1:
+ /* We've never interpreted yet. Maybe this time! */
+ conditionals->ignoring[o] = 0;
+ break;
+ }
+
+ /* It's a simple 'else'. */
+ if (*line == '\0')
+ {
+ conditionals->seen_else[o] = 1;
+ goto DONE;
+ }
+
+ /* The 'else' has extra text. That text must be another conditional
+ and cannot be an 'else' or 'endif'. */
+
+ /* Find the length of the next word. */
+ for (p = line+1; ! STOP_SET (*p, MAP_SPACE|MAP_NUL); ++p)
+ ;
+ len = p - line;
+
+ /* If it's 'else' or 'endif' or an illegal conditional, fail. */
+ if (word1eq ("else") || word1eq ("endif")
+ || conditional_line (line, len, flocp) < 0)
+ EXTRATEXT ();
+ else
+ {
+ /* conditional_line() created a new level of conditional.
+ Raise it back to this level. */
+ if (conditionals->ignoring[o] < 2)
+ conditionals->ignoring[o] = conditionals->ignoring[o+1];
+ --conditionals->if_cmds;
+ }
+
+ goto DONE;
+ }
+
+ if (conditionals->allocated == 0)
+ {
+ conditionals->allocated = 5;
+ conditionals->ignoring = xmalloc (conditionals->allocated);
+ conditionals->seen_else = xmalloc (conditionals->allocated);
+ }
+
+ o = conditionals->if_cmds++;
+ if (conditionals->if_cmds > conditionals->allocated)
+ {
+ conditionals->allocated += 5;
+ conditionals->ignoring = xrealloc (conditionals->ignoring,
+ conditionals->allocated);
+ conditionals->seen_else = xrealloc (conditionals->seen_else,
+ conditionals->allocated);
+ }
+
+ /* Record that we have seen an 'if...' but no 'else' so far. */
+ conditionals->seen_else[o] = 0;
+
+ /* Search through the stack to see if we're already ignoring. */
+ for (i = 0; i < o; ++i)
+ if (conditionals->ignoring[i])
+ {
+ /* We are already ignoring, so just push a level to match the next
+ "else" or "endif", and keep ignoring. We don't want to expand
+ variables in the condition. */
+ conditionals->ignoring[o] = 1;
+ return 1;
+ }
+
+ if (cmdtype == c_ifdef || cmdtype == c_ifndef)
+ {
+ char *var;
+ struct variable *v;
+ char *p;
+
+ /* Expand the thing we're looking up, so we can use indirect and
+ constructed variable names. */
+ var = allocated_variable_expand (line);
+
+ /* Make sure there's only one variable name to test. */
+ p = end_of_token (var);
+ i = p - var;
+ NEXT_TOKEN (p);
+ if (*p != '\0')
+ return -1;
+
+ var[i] = '\0';
+ v = lookup_variable (var, i);
+
+ conditionals->ignoring[o] =
+ ((v != 0 && *v->value != '\0') == (cmdtype == c_ifndef));
+
+ free (var);
+ }
+ else
+ {
+ /* "ifeq" or "ifneq". */
+ char *s1, *s2;
+ unsigned int l;
+ char termin = *line == '(' ? ',' : *line;
+
+ if (termin != ',' && termin != '"' && termin != '\'')
+ return -1;
+
+ s1 = ++line;
+ /* Find the end of the first string. */
+ if (termin == ',')
+ {
+ int count = 0;
+ for (; *line != '\0'; ++line)
+ if (*line == '(')
+ ++count;
+ else if (*line == ')')
+ --count;
+ else if (*line == ',' && count <= 0)
+ break;
+ }
+ else
+ while (*line != '\0' && *line != termin)
+ ++line;
+
+ if (*line == '\0')
+ return -1;
+
+ if (termin == ',')
+ {
+ /* Strip blanks after the first string. */
+ char *p = line++;
+ while (ISBLANK (p[-1]))
+ --p;
+ *p = '\0';
+ }
+ else
+ *line++ = '\0';
+
+ s2 = variable_expand (s1);
+ /* We must allocate a new copy of the expanded string because
+ variable_expand re-uses the same buffer. */
+ l = strlen (s2);
+ s1 = alloca (l + 1);
+ memcpy (s1, s2, l + 1);
+
+ if (termin != ',')
+ /* Find the start of the second string. */
+ NEXT_TOKEN (line);
+
+ termin = termin == ',' ? ')' : *line;
+ if (termin != ')' && termin != '"' && termin != '\'')
+ return -1;
+
+ /* Find the end of the second string. */
+ if (termin == ')')
+ {
+ int count = 0;
+ s2 = next_token (line);
+ for (line = s2; *line != '\0'; ++line)
+ {
+ if (*line == '(')
+ ++count;
+ else if (*line == ')')
+ {
+ if (count <= 0)
+ break;
+ else
+ --count;
+ }
+ }
+ }
+ else
+ {
+ ++line;
+ s2 = line;
+ while (*line != '\0' && *line != termin)
+ ++line;
+ }
+
+ if (*line == '\0')
+ return -1;
+
+ *(line++) = '\0';
+ NEXT_TOKEN (line);
+ if (*line != '\0')
+ EXTRATEXT ();
+
+ s2 = variable_expand (s2);
+ conditionals->ignoring[o] = (streq (s1, s2) == (cmdtype == c_ifneq));
+ }
+
+ DONE:
+ /* Search through the stack to see if we're ignoring. */
+ for (i = 0; i < conditionals->if_cmds; ++i)
+ if (conditionals->ignoring[i])
+ return 1;
+ return 0;
+}
+
+
+/* Record target-specific variable values for files FILENAMES.
+ TWO_COLON is nonzero if a double colon was used.
+
+ The links of FILENAMES are freed, and so are any names in it
+ that are not incorporated into other data structures.
+
+ If the target is a pattern, add the variable to the pattern-specific
+ variable value list. */
+
+static void
+record_target_var (struct nameseq *filenames, char *defn,
+ enum variable_origin origin, struct vmodifiers *vmod,
+ const floc *flocp)
+{
+ struct nameseq *nextf;
+ struct variable_set_list *global;
+
+ global = current_variable_set_list;
+
+ /* If the variable is an append version, store that but treat it as a
+ normal recursive variable. */
+
+ for (; filenames != 0; filenames = nextf)
+ {
+ struct variable *v;
+ const char *name = filenames->name;
+ const char *percent;
+ struct pattern_var *p;
+
+ nextf = filenames->next;
+ free_ns (filenames);
+
+ /* If it's a pattern target, then add it to the pattern-specific
+ variable list. */
+ percent = find_percent_cached (&name);
+ if (percent)
+ {
+ /* Get a reference for this pattern-specific variable struct. */
+ p = create_pattern_var (name, percent);
+ p->variable.fileinfo = *flocp;
+ /* I don't think this can fail since we already determined it was a
+ variable definition. */
+ v = assign_variable_definition (&p->variable, defn);
+ assert (v != 0);
+
+ v->origin = origin;
+ if (v->flavor == f_simple)
+ v->value = allocated_variable_expand (v->value);
+ else
+ v->value = xstrdup (v->value);
+ }
+ else
+ {
+ struct file *f;
+
+ /* Get a file reference for this file, and initialize it.
+ We don't want to just call enter_file() because that allocates a
+ new entry if the file is a double-colon, which we don't want in
+ this situation. */
+ f = lookup_file (name);
+ if (!f)
+ f = enter_file (strcache_add (name));
+ else if (f->double_colon)
+ f = f->double_colon;
+
+ initialize_file_variables (f, 1);
+
+ current_variable_set_list = f->variables;
+ v = try_variable_definition (flocp, defn, origin, 1);
+ if (!v)
+ O (fatal, flocp, _("Malformed target-specific variable definition"));
+ current_variable_set_list = global;
+ }
+
+ /* Set up the variable to be *-specific. */
+ v->per_target = 1;
+ v->private_var = vmod->private_v;
+ v->export = vmod->export_v ? v_export : v_default;
+
+ /* If it's not an override, check to see if there was a command-line
+ setting. If so, reset the value. */
+ if (v->origin != o_override)
+ {
+ struct variable *gv;
+ int len = strlen (v->name);
+
+ gv = lookup_variable (v->name, len);
+ if (gv && v != gv
+ && (gv->origin == o_env_override || gv->origin == o_command))
+ {
+ free (v->value);
+ v->value = xstrdup (gv->value);
+ v->origin = gv->origin;
+ v->recursive = gv->recursive;
+ v->append = 0;
+ }
+ }
+ }
+}
+
+/* Record a description line for files FILENAMES,
+ with dependencies DEPS, commands to execute described
+ by COMMANDS and COMMANDS_IDX, coming from FILENAME:COMMANDS_STARTED.
+ TWO_COLON is nonzero if a double colon was used.
+ If not nil, PATTERN is the '%' pattern to make this
+ a static pattern rule, and PATTERN_PERCENT is a pointer
+ to the '%' within it.
+
+ The links of FILENAMES are freed, and so are any names in it
+ that are not incorporated into other data structures. */
+
+static void
+record_files (struct nameseq *filenames, const char *pattern,
+ const char *pattern_percent, char *depstr,
+ unsigned int cmds_started, char *commands,
+ unsigned int commands_idx, int two_colon,
+ char prefix, const floc *flocp)
+{
+ struct commands *cmds;
+ struct dep *deps;
+ const char *implicit_percent;
+ const char *name;
+
+ /* If we've already snapped deps, that means we're in an eval being
+ resolved after the makefiles have been read in. We can't add more rules
+ at this time, since they won't get snapped and we'll get core dumps.
+ See Savannah bug # 12124. */
+ if (snapped_deps)
+ O (fatal, flocp, _("prerequisites cannot be defined in recipes"));
+
+ /* Determine if this is a pattern rule or not. */
+ name = filenames->name;
+ implicit_percent = find_percent_cached (&name);
+
+ /* If there's a recipe, set up a struct for it. */
+ if (commands_idx > 0)
+ {
+ cmds = xmalloc (sizeof (struct commands));
+ cmds->fileinfo.filenm = flocp->filenm;
+ cmds->fileinfo.lineno = cmds_started;
+ cmds->fileinfo.offset = 0;
+ cmds->commands = xstrndup (commands, commands_idx);
+ cmds->command_lines = 0;
+ cmds->recipe_prefix = prefix;
+ }
+ else
+ cmds = 0;
+
+ /* If there's a prereq string then parse it--unless it's eligible for 2nd
+ expansion: if so, snap_deps() will do it. */
+ if (depstr == 0)
+ deps = 0;
+ else
+ {
+ depstr = unescape_char (depstr, ':');
+ if (second_expansion && strchr (depstr, '$'))
+ {
+ deps = alloc_dep ();
+ deps->name = depstr;
+ deps->need_2nd_expansion = 1;
+ deps->staticpattern = pattern != 0;
+ }
+ else
+ {
+ deps = split_prereqs (depstr);
+ free (depstr);
+
+ /* We'll enter static pattern prereqs later when we have the stem.
+ We don't want to enter pattern rules at all so that we don't
+ think that they ought to exist (make manual "Implicit Rule Search
+ Algorithm", item 5c). */
+ if (! pattern && ! implicit_percent)
+ deps = enter_prereqs (deps, NULL);
+ }
+ }
+
+ /* For implicit rules, _all_ the targets must have a pattern. That means we
+ can test the first one to see if we're working with an implicit rule; if
+ so we handle it specially. */
+
+ if (implicit_percent)
+ {
+ struct nameseq *nextf;
+ const char **targets, **target_pats;
+ unsigned int c;
+
+ if (pattern != 0)
+ O (fatal, flocp, _("mixed implicit and static pattern rules"));
+
+ /* Count the targets to create an array of target names.
+ We already have the first one. */
+ nextf = filenames->next;
+ free_ns (filenames);
+ filenames = nextf;
+
+ for (c = 1; nextf; ++c, nextf = nextf->next)
+ ;
+ targets = xmalloc (c * sizeof (const char *));
+ target_pats = xmalloc (c * sizeof (const char *));
+
+ targets[0] = name;
+ target_pats[0] = implicit_percent;
+
+ c = 1;
+ while (filenames)
+ {
+ name = filenames->name;
+ implicit_percent = find_percent_cached (&name);
+
+ if (implicit_percent == 0)
+ O (fatal, flocp, _("mixed implicit and normal rules"));
+
+ targets[c] = name;
+ target_pats[c] = implicit_percent;
+ ++c;
+
+ nextf = filenames->next;
+ free_ns (filenames);
+ filenames = nextf;
+ }
+
+ create_pattern_rule (targets, target_pats, c, two_colon, deps, cmds, 1);
+
+ return;
+ }
+
+
+ /* Walk through each target and create it in the database.
+ We already set up the first target, above. */
+ while (1)
+ {
+ struct nameseq *nextf = filenames->next;
+ struct file *f;
+ struct dep *this = 0;
+
+ free_ns (filenames);
+
+ /* Check for special targets. Do it here instead of, say, snap_deps()
+ so that we can immediately use the value. */
+ if (streq (name, ".POSIX"))
+ {
+ posix_pedantic = 1;
+ define_variable_cname (".SHELLFLAGS", "-ec", o_default, 0);
+ /* These default values are based on IEEE Std 1003.1-2008. */
+ define_variable_cname ("ARFLAGS", "-rv", o_default, 0);
+ define_variable_cname ("CC", "c99", o_default, 0);
+ define_variable_cname ("CFLAGS", "-O", o_default, 0);
+ define_variable_cname ("FC", "fort77", o_default, 0);
+ define_variable_cname ("FFLAGS", "-O 1", o_default, 0);
+ define_variable_cname ("SCCSGETFLAGS", "-s", o_default, 0);
+ }
+ else if (streq (name, ".SECONDEXPANSION"))
+ second_expansion = 1;
+#if !defined (__MSDOS__) && !defined (__EMX__)
+ else if (streq (name, ".ONESHELL"))
+ one_shell = 1;
+#endif
+
+ /* If this is a static pattern rule:
+ 'targets: target%pattern: prereq%pattern; recipe',
+ make sure the pattern matches this target name. */
+ if (pattern && !pattern_matches (pattern, pattern_percent, name))
+ OS (error, flocp,
+ _("target '%s' doesn't match the target pattern"), name);
+ else if (deps)
+ /* If there are multiple targets, copy the chain DEPS for all but the
+ last one. It is not safe for the same deps to go in more than one
+ place in the database. */
+ this = nextf != 0 ? copy_dep_chain (deps) : deps;
+
+ /* Find or create an entry in the file database for this target. */
+ if (!two_colon)
+ {
+ /* Single-colon. Combine this rule with the file's existing record,
+ if any. */
+ f = enter_file (strcache_add (name));
+ if (f->double_colon)
+ OS (fatal, flocp,
+ _("target file '%s' has both : and :: entries"), f->name);
+
+ /* If CMDS == F->CMDS, this target was listed in this rule
+ more than once. Just give a warning since this is harmless. */
+ if (cmds != 0 && cmds == f->cmds)
+ OS (error, flocp,
+ _("target '%s' given more than once in the same rule"),
+ f->name);
+
+ /* Check for two single-colon entries both with commands.
+ Check is_target so that we don't lose on files such as .c.o
+ whose commands were preinitialized. */
+ else if (cmds != 0 && f->cmds != 0 && f->is_target)
+ {
+ size_t l = strlen (f->name);
+ error (&cmds->fileinfo, l,
+ _("warning: overriding recipe for target '%s'"),
+ f->name);
+ error (&f->cmds->fileinfo, l,
+ _("warning: ignoring old recipe for target '%s'"),
+ f->name);
+ }
+
+ /* Defining .DEFAULT with no deps or cmds clears it. */
+ if (f == default_file && this == 0 && cmds == 0)
+ f->cmds = 0;
+ if (cmds != 0)
+ f->cmds = cmds;
+
+ /* Defining .SUFFIXES with no dependencies clears out the list of
+ suffixes. */
+ if (f == suffix_file && this == 0)
+ {
+ free_dep_chain (f->deps);
+ f->deps = 0;
+ }
+ }
+ else
+ {
+ /* Double-colon. Make a new record even if there already is one. */
+ f = lookup_file (name);
+
+ /* Check for both : and :: rules. Check is_target so we don't lose
+ on default suffix rules or makefiles. */
+ if (f != 0 && f->is_target && !f->double_colon)
+ OS (fatal, flocp,
+ _("target file '%s' has both : and :: entries"), f->name);
+
+ f = enter_file (strcache_add (name));
+ /* If there was an existing entry and it was a double-colon entry,
+ enter_file will have returned a new one, making it the prev
+ pointer of the old one, and setting its double_colon pointer to
+ the first one. */
+ if (f->double_colon == 0)
+ /* This is the first entry for this name, so we must set its
+ double_colon pointer to itself. */
+ f->double_colon = f;
+
+ f->cmds = cmds;
+ }
+
+ f->is_target = 1;
+
+ /* If this is a static pattern rule, set the stem to the part of its
+ name that matched the '%' in the pattern, so you can use $* in the
+ commands. If we didn't do it before, enter the prereqs now. */
+ if (pattern)
+ {
+ static const char *percent = "%";
+ char *buffer = variable_expand ("");
+ char *o = patsubst_expand_pat (buffer, name, pattern, percent,
+ pattern_percent+1, percent+1);
+ f->stem = strcache_add_len (buffer, o - buffer);
+ if (this)
+ {
+ if (! this->need_2nd_expansion)
+ this = enter_prereqs (this, f->stem);
+ else
+ this->stem = f->stem;
+ }
+ }
+
+ /* Add the dependencies to this file entry. */
+ if (this != 0)
+ {
+ /* Add the file's old deps and the new ones in THIS together. */
+ if (f->deps == 0)
+ f->deps = this;
+ else if (cmds != 0)
+ {
+ struct dep *d = this;
+
+ /* If this rule has commands, put these deps first. */
+ while (d->next != 0)
+ d = d->next;
+
+ d->next = f->deps;
+ f->deps = this;
+ }
+ else
+ {
+ struct dep *d = f->deps;
+
+ /* A rule without commands: put its prereqs at the end. */
+ while (d->next != 0)
+ d = d->next;
+
+ d->next = this;
+ }
+ }
+
+ name = f->name;
+
+ /* All done! Set up for the next one. */
+ if (nextf == 0)
+ break;
+
+ filenames = nextf;
+
+ /* Reduce escaped percents. If there are any unescaped it's an error */
+ name = filenames->name;
+ if (find_percent_cached (&name))
+ O (error, flocp,
+ _("*** mixed implicit and normal rules: deprecated syntax"));
+ }
+}
+
+/* Search STRING for an unquoted STOPCHAR or blank (if BLANK is nonzero).
+ Backslashes quote STOPCHAR, blanks if BLANK is nonzero, and backslash.
+ Quoting backslashes are removed from STRING by compacting it into
+ itself. Returns a pointer to the first unquoted STOPCHAR if there is
+ one, or nil if there are none. STOPCHARs inside variable references are
+ ignored if IGNOREVARS is true.
+
+ STOPCHAR _cannot_ be '$' if IGNOREVARS is true. */
+
+static char *
+find_char_unquote (char *string, int map)
+{
+ unsigned int string_len = 0;
+ char *p = string;
+
+ /* Always stop on NUL. */
+ map |= MAP_NUL;
+
+ while (1)
+ {
+ while (! STOP_SET (*p, map))
+ ++p;
+
+ if (*p == '\0')
+ break;
+
+ /* If we stopped due to a variable reference, skip over its contents. */
+ if (STOP_SET (*p, MAP_VARIABLE))
+ {
+ char openparen = p[1];
+
+ /* Check if '$' is the last character in the string. */
+ if (openparen == '\0')
+ break;
+
+ p += 2;
+
+ /* Skip the contents of a non-quoted, multi-char variable ref. */
+ if (openparen == '(' || openparen == '{')
+ {
+ unsigned int pcount = 1;
+ char closeparen = (openparen == '(' ? ')' : '}');
+
+ while (*p)
+ {
+ if (*p == openparen)
+ ++pcount;
+ else if (*p == closeparen)
+ if (--pcount == 0)
+ {
+ ++p;
+ break;
+ }
+ ++p;
+ }
+ }
+
+ /* Skipped the variable reference: look for STOPCHARS again. */
+ continue;
+ }
+
+ if (p > string && p[-1] == '\\')
+ {
+ /* Search for more backslashes. */
+ int i = -2;
+ while (&p[i] >= string && p[i] == '\\')
+ --i;
+ ++i;
+ /* Only compute the length if really needed. */
+ if (string_len == 0)
+ string_len = strlen (string);
+ /* The number of backslashes is now -I.
+ Copy P over itself to swallow half of them. */
+ memmove (&p[i], &p[i/2], (string_len - (p - string)) - (i/2) + 1);
+ p += i/2;
+ if (i % 2 == 0)
+ /* All the backslashes quoted each other; the STOPCHAR was
+ unquoted. */
+ return p;
+
+ /* The STOPCHAR was quoted by a backslash. Look for another. */
+ }
+ else
+ /* No backslash in sight. */
+ return p;
+ }
+
+ /* Never hit a STOPCHAR or blank (with BLANK nonzero). */
+ return 0;
+}
+
+/* Unescape a character in a string. The string is compressed onto itself. */
+
+static char *
+unescape_char (char *string, int c)
+{
+ char *p = string;
+ char *s = string;
+
+ while (*s != '\0')
+ {
+ if (*s == '\\')
+ {
+ char *e = s;
+ int l;
+
+ /* We found a backslash. See if it's escaping our character. */
+ while (*e == '\\')
+ ++e;
+ l = e - s;
+
+ if (*e != c || l%2 == 0)
+ {
+ /* It's not; just take it all without unescaping. */
+ memmove (p, s, l);
+ p += l;
+
+ // If we hit the end of the string, we're done
+ if (*e == '\0')
+ break;
+ }
+ else if (l > 1)
+ {
+ /* It is, and there's >1 backslash. Take half of them. */
+ l /= 2;
+ memmove (p, s, l);
+ p += l;
+ }
+
+ s = e;
+ }
+
+ *(p++) = *(s++);
+ }
+
+ *p = '\0';
+ return string;
+}
+
+/* Search PATTERN for an unquoted % and handle quoting. */
+
+char *
+find_percent (char *pattern)
+{
+ return find_char_unquote (pattern, MAP_PERCENT);
+}
+
+/* Search STRING for an unquoted % and handle quoting. Returns a pointer to
+ the % or NULL if no % was found.
+ This version is used with strings in the string cache: if there's a need to
+ modify the string a new version will be added to the string cache and
+ *STRING will be set to that. */
+
+const char *
+find_percent_cached (const char **string)
+{
+ const char *p = *string;
+ char *new = 0;
+ int slen = 0;
+
+ /* If the first char is a % return now. This lets us avoid extra tests
+ inside the loop. */
+ if (*p == '%')
+ return p;
+
+ while (1)
+ {
+ while (! STOP_SET (*p, MAP_PERCENT|MAP_NUL))
+ ++p;
+
+ if (*p == '\0')
+ break;
+
+ /* See if this % is escaped with a backslash; if not we're done. */
+ if (p[-1] != '\\')
+ break;
+
+ {
+ /* Search for more backslashes. */
+ char *pv;
+ int i = -2;
+
+ while (&p[i] >= *string && p[i] == '\\')
+ --i;
+ ++i;
+
+ /* At this point we know we'll need to allocate a new string.
+ Make a copy if we haven't yet done so. */
+ if (! new)
+ {
+ slen = strlen (*string);
+ new = alloca (slen + 1);
+ memcpy (new, *string, slen + 1);
+ p = new + (p - *string);
+ *string = new;
+ }
+
+ /* At this point *string, p, and new all point into the same string.
+ Get a non-const version of p so we can modify new. */
+ pv = new + (p - *string);
+
+ /* The number of backslashes is now -I.
+ Copy P over itself to swallow half of them. */
+ memmove (&pv[i], &pv[i/2], (slen - (pv - new)) - (i/2) + 1);
+ p += i/2;
+
+ /* If the backslashes quoted each other; the % was unquoted. */
+ if (i % 2 == 0)
+ break;
+ }
+ }
+
+ /* If we had to change STRING, add it to the strcache. */
+ if (new)
+ {
+ *string = strcache_add (*string);
+ p = *string + (p - new);
+ }
+
+ /* If we didn't find a %, return NULL. Otherwise return a ptr to it. */
+ return (*p == '\0') ? NULL : p;
+}
+
+/* Find the next line of text in an eval buffer, combining continuation lines
+ into one line.
+ Return the number of actual lines read (> 1 if continuation lines).
+ Returns -1 if there's nothing left in the buffer.
+
+ After this function, ebuf->buffer points to the first character of the
+ line we just found.
+ */
+
+/* Read a line of text from a STRING.
+ Since we aren't really reading from a file, don't bother with linenumbers.
+ */
+
+static long
+readstring (struct ebuffer *ebuf)
+{
+ char *eol;
+
+ /* If there is nothing left in this buffer, return 0. */
+ if (ebuf->bufnext >= ebuf->bufstart + ebuf->size)
+ return -1;
+
+ /* Set up a new starting point for the buffer, and find the end of the
+ next logical line (taking into account backslash/newline pairs). */
+
+ eol = ebuf->buffer = ebuf->bufnext;
+
+ while (1)
+ {
+ int backslash = 0;
+ const char *bol = eol;
+ const char *p;
+
+ /* Find the next newline. At EOS, stop. */
+ p = eol = strchr (eol , '\n');
+ if (!eol)
+ {
+ ebuf->bufnext = ebuf->bufstart + ebuf->size + 1;
+ return 0;
+ }
+
+ /* Found a newline; if it's escaped continue; else we're done. */
+ while (p > bol && *(--p) == '\\')
+ backslash = !backslash;
+ if (!backslash)
+ break;
+ ++eol;
+ }
+
+ /* Overwrite the newline char. */
+ *eol = '\0';
+ ebuf->bufnext = eol+1;
+
+ return 0;
+}
+
+static long
+readline (struct ebuffer *ebuf)
+{
+ char *p;
+ char *end;
+ char *start;
+ long nlines = 0;
+
+ /* The behaviors between string and stream buffers are different enough to
+ warrant different functions. Do the Right Thing. */
+
+ if (!ebuf->fp)
+ return readstring (ebuf);
+
+ /* When reading from a file, we always start over at the beginning of the
+ buffer for each new line. */
+
+ p = start = ebuf->bufstart;
+ end = p + ebuf->size;
+ *p = '\0';
+
+ while (fgets (p, end - p, ebuf->fp) != 0)
+ {
+ char *p2;
+ unsigned long len;
+ int backslash;
+
+ len = strlen (p);
+ if (len == 0)
+ {
+ /* This only happens when the first thing on the line is a '\0'.
+ It is a pretty hopeless case, but (wonder of wonders) Athena
+ lossage strikes again! (xmkmf puts NULs in its makefiles.)
+ There is nothing really to be done; we synthesize a newline so
+ the following line doesn't appear to be part of this line. */
+ O (error, &ebuf->floc,
+ _("warning: NUL character seen; rest of line ignored"));
+ p[0] = '\n';
+ len = 1;
+ }
+
+ /* Jump past the text we just read. */
+ p += len;
+
+ /* If the last char isn't a newline, the whole line didn't fit into the
+ buffer. Get some more buffer and try again. */
+ if (p[-1] != '\n')
+ goto more_buffer;
+
+ /* We got a newline, so add one to the count of lines. */
+ ++nlines;
+
+#if !defined(WINDOWS32) && !defined(__MSDOS__) && !defined(__EMX__)
+ /* Check to see if the line was really ended with CRLF; if so ignore
+ the CR. */
+ if ((p - start) > 1 && p[-2] == '\r')
+ {
+ --p;
+ memmove (p-1, p, strlen (p) + 1);
+ }
+#endif
+
+ backslash = 0;
+ for (p2 = p - 2; p2 >= start; --p2)
+ {
+ if (*p2 != '\\')
+ break;
+ backslash = !backslash;
+ }
+
+ if (!backslash)
+ {
+ p[-1] = '\0';
+ break;
+ }
+
+ /* It was a backslash/newline combo. If we have more space, read
+ another line. */
+ if (end - p >= 80)
+ continue;
+
+ /* We need more space at the end of our buffer, so realloc it.
+ Make sure to preserve the current offset of p. */
+ more_buffer:
+ {
+ unsigned long off = p - start;
+ ebuf->size *= 2;
+ start = ebuf->buffer = ebuf->bufstart = xrealloc (start, ebuf->size);
+ p = start + off;
+ end = start + ebuf->size;
+ *p = '\0';
+ }
+ }
+
+ if (ferror (ebuf->fp))
+ pfatal_with_name (ebuf->floc.filenm);
+
+ /* If we found some lines, return how many.
+ If we didn't, but we did find _something_, that indicates we read the last
+ line of a file with no final newline; return 1.
+ If we read nothing, we're at EOF; return -1. */
+
+ return nlines ? nlines : p == ebuf->bufstart ? -1 : 1;
+}
+
+/* Parse the next "makefile word" from the input buffer, and return info
+ about it.
+
+ A "makefile word" is one of:
+
+ w_bogus Should never happen
+ w_eol End of input
+ w_static A static word; cannot be expanded
+ w_variable A word containing one or more variables/functions
+ w_colon A colon
+ w_dcolon A double-colon
+ w_semicolon A semicolon
+ w_varassign A variable assignment operator (=, :=, ::=, +=, ?=, or !=)
+
+ Note that this function is only used when reading certain parts of the
+ makefile. Don't use it where special rules hold sway (RHS of a variable,
+ in a command list, etc.) */
+
+static enum make_word_type
+get_next_mword (char *buffer, char *delim, char **startp, unsigned int *length)
+{
+ enum make_word_type wtype = w_bogus;
+ char *p = buffer, *beg;
+ char c;
+
+ /* Skip any leading whitespace. */
+ while (ISBLANK (*p))
+ ++p;
+
+ beg = p;
+ c = *(p++);
+ switch (c)
+ {
+ case '\0':
+ wtype = w_eol;
+ break;
+
+ case ';':
+ wtype = w_semicolon;
+ break;
+
+ case '=':
+ wtype = w_varassign;
+ break;
+
+ case ':':
+ wtype = w_colon;
+ switch (*p)
+ {
+ case ':':
+ ++p;
+ if (p[1] != '=')
+ wtype = w_dcolon;
+ else
+ {
+ wtype = w_varassign;
+ ++p;
+ }
+ break;
+
+ case '=':
+ ++p;
+ wtype = w_varassign;
+ break;
+ }
+ break;
+
+ case '+':
+ case '?':
+ case '!':
+ if (*p == '=')
+ {
+ ++p;
+ wtype = w_varassign;
+ break;
+ }
+
+ default:
+ if (delim && strchr (delim, c))
+ wtype = w_static;
+ break;
+ }
+
+ /* Did we find something? If so, return now. */
+ if (wtype != w_bogus)
+ goto done;
+
+ /* This is some non-operator word. A word consists of the longest
+ string of characters that doesn't contain whitespace, one of [:=#],
+ or [?+!]=, or one of the chars in the DELIM string. */
+
+ /* We start out assuming a static word; if we see a variable we'll
+ adjust our assumptions then. */
+ wtype = w_static;
+
+ /* We already found the first value of "c", above. */
+ while (1)
+ {
+ char closeparen;
+ int count;
+
+ switch (c)
+ {
+ case '\0':
+ case ' ':
+ case '\t':
+ case '=':
+ goto done_word;
+
+ case ':':
+#ifdef HAVE_DOS_PATHS
+ /* A word CAN include a colon in its drive spec. The drive
+ spec is allowed either at the beginning of a word, or as part
+ of the archive member name, like in "libfoo.a(d:/foo/bar.o)". */
+ if (!(p - beg >= 2
+ && (*p == '/' || *p == '\\') && isalpha ((unsigned char)p[-2])
+ && (p - beg == 2 || p[-3] == '(')))
+#endif
+ goto done_word;
+
+ case '$':
+ c = *(p++);
+ if (c == '$')
+ break;
+ if (c == '\0')
+ goto done_word;
+
+ /* This is a variable reference, so note that it's expandable.
+ Then read it to the matching close paren. */
+ wtype = w_variable;
+
+ if (c == '(')
+ closeparen = ')';
+ else if (c == '{')
+ closeparen = '}';
+ else
+ /* This is a single-letter variable reference. */
+ break;
+
+ for (count=0; *p != '\0'; ++p)
+ {
+ if (*p == c)
+ ++count;
+ else if (*p == closeparen && --count < 0)
+ {
+ ++p;
+ break;
+ }
+ }
+ break;
+
+ case '?':
+ case '+':
+ if (*p == '=')
+ goto done_word;
+ break;
+
+ case '\\':
+ switch (*p)
+ {
+ case ':':
+ case ';':
+ case '=':
+ case '\\':
+ ++p;
+ break;
+ }
+ break;
+
+ default:
+ if (delim && strchr (delim, c))
+ goto done_word;
+ break;
+ }
+
+ c = *(p++);
+ }
+ done_word:
+ --p;
+
+ done:
+ if (startp)
+ *startp = beg;
+ if (length)
+ *length = p - beg;
+ return wtype;
+}
+
+/* Construct the list of include directories
+ from the arguments and the default list. */
+
+void
+construct_include_path (const char **arg_dirs)
+{
+#ifdef VAXC /* just don't ask ... */
+ stat_t stbuf;
+#else
+ struct stat stbuf;
+#endif
+ const char **dirs;
+ const char **cpp;
+ unsigned int idx;
+
+ /* Compute the number of pointers we need in the table. */
+ idx = sizeof (default_include_directories) / sizeof (const char *);
+ if (arg_dirs)
+ for (cpp = arg_dirs; *cpp != 0; ++cpp)
+ ++idx;
+
+#ifdef __MSDOS__
+ /* Add one for $DJDIR. */
+ ++idx;
+#endif
+
+ dirs = xmalloc (idx * sizeof (const char *));
+
+ idx = 0;
+ max_incl_len = 0;
+
+ /* First consider any dirs specified with -I switches.
+ Ignore any that don't exist. Remember the maximum string length. */
+
+ if (arg_dirs)
+ while (*arg_dirs != 0)
+ {
+ const char *dir = *(arg_dirs++);
+ char *expanded = 0;
+ int e;
+
+ if (dir[0] == '~')
+ {
+ expanded = tilde_expand (dir);
+ if (expanded != 0)
+ dir = expanded;
+ }
+
+ EINTRLOOP (e, stat (dir, &stbuf));
+ if (e == 0 && S_ISDIR (stbuf.st_mode))
+ {
+ unsigned int len = strlen (dir);
+ /* If dir name is written with trailing slashes, discard them. */
+ while (len > 1 && dir[len - 1] == '/')
+ --len;
+ if (len > max_incl_len)
+ max_incl_len = len;
+ dirs[idx++] = strcache_add_len (dir, len);
+ }
+
+ free (expanded);
+ }
+
+ /* Now add the standard default dirs at the end. */
+
+#ifdef __MSDOS__
+ {
+ /* The environment variable $DJDIR holds the root of the DJGPP directory
+ tree; add ${DJDIR}/include. */
+ struct variable *djdir = lookup_variable ("DJDIR", 5);
+
+ if (djdir)
+ {
+ unsigned int len = strlen (djdir->value) + 8;
+ char *defdir = alloca (len + 1);
+
+ strcat (strcpy (defdir, djdir->value), "/include");
+ dirs[idx++] = strcache_add (defdir);
+
+ if (len > max_incl_len)
+ max_incl_len = len;
+ }
+ }
+#endif
+
+ for (cpp = default_include_directories; *cpp != 0; ++cpp)
+ {
+ int e;
+
+ EINTRLOOP (e, stat (*cpp, &stbuf));
+ if (e == 0 && S_ISDIR (stbuf.st_mode))
+ {
+ unsigned int len = strlen (*cpp);
+ /* If dir name is written with trailing slashes, discard them. */
+ while (len > 1 && (*cpp)[len - 1] == '/')
+ --len;
+ if (len > max_incl_len)
+ max_incl_len = len;
+ dirs[idx++] = strcache_add_len (*cpp, len);
+ }
+ }
+
+ dirs[idx] = 0;
+
+ /* Now add each dir to the .INCLUDE_DIRS variable. */
+
+ for (cpp = dirs; *cpp != 0; ++cpp)
+ do_variable_definition (NILF, ".INCLUDE_DIRS", *cpp,
+ o_default, f_append, 0);
+
+ include_directories = dirs;
+}
+
+/* Expand ~ or ~USER at the beginning of NAME.
+ Return a newly malloc'd string or 0. */
+
+char *
+tilde_expand (const char *name)
+{
+#ifndef VMS
+ if (name[1] == '/' || name[1] == '\0')
+ {
+ char *home_dir;
+ int is_variable;
+
+ {
+ /* Turn off --warn-undefined-variables while we expand HOME. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ home_dir = allocated_variable_expand ("$(HOME)");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ is_variable = home_dir[0] != '\0';
+ if (!is_variable)
+ {
+ free (home_dir);
+ home_dir = getenv ("HOME");
+ }
+# if !defined(_AMIGA) && !defined(WINDOWS32)
+ if (home_dir == 0 || home_dir[0] == '\0')
+ {
+ char *logname = getlogin ();
+ home_dir = 0;
+ if (logname != 0)
+ {
+ struct passwd *p = getpwnam (logname);
+ if (p != 0)
+ home_dir = p->pw_dir;
+ }
+ }
+# endif /* !AMIGA && !WINDOWS32 */
+ if (home_dir != 0)
+ {
+ char *new = xstrdup (concat (2, home_dir, name + 1));
+ if (is_variable)
+ free (home_dir);
+ return new;
+ }
+ }
+# if !defined(_AMIGA) && !defined(WINDOWS32)
+ else
+ {
+ struct passwd *pwent;
+ char *userend = strchr (name + 1, '/');
+ if (userend != 0)
+ *userend = '\0';
+ pwent = getpwnam (name + 1);
+ if (pwent != 0)
+ {
+ if (userend == 0)
+ return xstrdup (pwent->pw_dir);
+ else
+ return xstrdup (concat (3, pwent->pw_dir, "/", userend + 1));
+ }
+ else if (userend != 0)
+ *userend = '/';
+ }
+# endif /* !AMIGA && !WINDOWS32 */
+#endif /* !VMS */
+ return 0;
+}
+
+/* Parse a string into a sequence of filenames represented as a chain of
+ struct nameseq's and return that chain. Optionally expand the strings via
+ glob().
+
+ The string is passed as STRINGP, the address of a string pointer.
+ The string pointer is updated to point at the first character
+ not parsed, which either is a null char or equals STOPCHAR.
+
+ SIZE is how big to construct chain elements.
+ This is useful if we want them actually to be other structures
+ that have room for additional info.
+
+ PREFIX, if non-null, is added to the beginning of each filename.
+
+ FLAGS allows one or more of the following bitflags to be set:
+ PARSEFS_NOSTRIP - Do no strip './'s off the beginning
+ PARSEFS_NOAR - Do not check filenames for archive references
+ PARSEFS_NOGLOB - Do not expand globbing characters
+ PARSEFS_EXISTS - Only return globbed files that actually exist
+ (cannot also set NOGLOB)
+ PARSEFS_NOCACHE - Do not add filenames to the strcache (caller frees)
+ */
+
+void *
+parse_file_seq (char **stringp, unsigned int size, int stopmap,
+ const char *prefix, int flags)
+{
+ /* tmp points to tmpbuf after the prefix, if any.
+ tp is the end of the buffer. */
+ static char *tmpbuf = NULL;
+
+ int cachep = NONE_SET (flags, PARSEFS_NOCACHE);
+
+ struct nameseq *new = 0;
+ struct nameseq **newp = &new;
+#define NEWELT(_n) do { \
+ const char *__n = (_n); \
+ *newp = xcalloc (size); \
+ (*newp)->name = (cachep ? strcache_add (__n) : xstrdup (__n)); \
+ newp = &(*newp)->next; \
+ } while(0)
+
+ char *p;
+ glob_t gl;
+ char *tp;
+
+ /* Always stop on NUL. */
+ stopmap |= MAP_NUL;
+
+ if (size < sizeof (struct nameseq))
+ size = sizeof (struct nameseq);
+
+ if (NONE_SET (flags, PARSEFS_NOGLOB))
+ dir_setup_glob (&gl);
+
+ /* Get enough temporary space to construct the largest possible target. */
+ {
+ static int tmpbuf_len = 0;
+ int l = strlen (*stringp) + 1;
+ if (l > tmpbuf_len)
+ {
+ tmpbuf = xrealloc (tmpbuf, l);
+ tmpbuf_len = l;
+ }
+ }
+ tp = tmpbuf;
+
+ /* Parse STRING. P will always point to the end of the parsed content. */
+ p = *stringp;
+ while (1)
+ {
+ const char *name;
+ const char **nlist = 0;
+ char *tildep = 0;
+ int globme = 1;
+#ifndef NO_ARCHIVES
+ char *arname = 0;
+ char *memname = 0;
+#endif
+ char *s;
+ int nlen;
+ int i;
+
+ /* Skip whitespace; at the end of the string or STOPCHAR we're done. */
+ NEXT_TOKEN (p);
+ if (STOP_SET (*p, stopmap))
+ break;
+
+ /* There are names left, so find the end of the next name.
+ Throughout this iteration S points to the start. */
+ s = p;
+ p = find_char_unquote (p, stopmap|MAP_VMSCOMMA|MAP_BLANK);
+#ifdef VMS
+ /* convert comma separated list to space separated */
+ if (p && *p == ',')
+ *p =' ';
+#endif
+#ifdef _AMIGA
+ if (p && STOP_SET (*p, stopmap & MAP_COLON)
+ && !(ISSPACE (p[1]) || !p[1] || ISSPACE (p[-1])))
+ p = find_char_unquote (p+1, stopmap|MAP_VMSCOMMA|MAP_BLANK);
+#endif
+#ifdef HAVE_DOS_PATHS
+ /* For DOS paths, skip a "C:\..." or a "C:/..." until we find the
+ first colon which isn't followed by a slash or a backslash.
+ Note that tokens separated by spaces should be treated as separate
+ tokens since make doesn't allow path names with spaces */
+ if (stopmap | MAP_COLON)
+ while (p != 0 && !ISSPACE (*p) &&
+ (p[1] == '\\' || p[1] == '/') && isalpha ((unsigned char)p[-1]))
+ p = find_char_unquote (p + 1, stopmap|MAP_VMSCOMMA|MAP_BLANK);
+#endif
+ if (p == 0)
+ p = s + strlen (s);
+
+ /* Strip leading "this directory" references. */
+ if (NONE_SET (flags, PARSEFS_NOSTRIP))
+#ifdef VMS
+ /* Skip leading '[]'s. should only be one set or bug somwhere else */
+ if (p - s > 2 && s[0] == '[' && s[1] == ']')
+ s += 2;
+ /* Skip leading '<>'s. should only be one set or bug somwhere else */
+ if (p - s > 2 && s[0] == '<' && s[1] == '>')
+ s += 2;
+#endif
+ /* Skip leading './'s. */
+ while (p - s > 2 && s[0] == '.' && s[1] == '/')
+ {
+ /* Skip "./" and all following slashes. */
+ s += 2;
+ while (*s == '/')
+ ++s;
+ }
+
+ /* Extract the filename just found, and skip it.
+ Set NAME to the string, and NLEN to its length. */
+
+ if (s == p)
+ {
+ /* The name was stripped to empty ("./"). */
+#if defined(_AMIGA)
+ /* PDS-- This cannot be right!! */
+ tp[0] = '\0';
+ nlen = 0;
+#else
+ tp[0] = '.';
+ tp[1] = '/';
+ tp[2] = '\0';
+ nlen = 2;
+#endif
+ }
+ else
+ {
+#ifdef VMS
+/* VMS filenames can have a ':' in them but they have to be '\'ed but we need
+ * to remove this '\' before we can use the filename.
+ * xstrdup called because S may be read-only string constant.
+ */
+ char *n = tp;
+ while (s < p)
+ {
+ if (s[0] == '\\' && s[1] == ':')
+ ++s;
+ *(n++) = *(s++);
+ }
+ n[0] = '\0';
+ nlen = strlen (tp);
+#else
+ nlen = p - s;
+ memcpy (tp, s, nlen);
+ tp[nlen] = '\0';
+#endif
+ }
+
+ /* At this point, TP points to the element and NLEN is its length. */
+
+#ifndef NO_ARCHIVES
+ /* If this is the start of an archive group that isn't complete, set up
+ to add the archive prefix for future files. A file list like:
+ "libf.a(x.o y.o z.o)" needs to be expanded as:
+ "libf.a(x.o) libf.a(y.o) libf.a(z.o)"
+
+ TP == TMP means we're not already in an archive group. Ignore
+ something starting with '(', as that cannot actually be an
+ archive-member reference (and treating it as such results in an empty
+ file name, which causes much lossage). Also if it ends in ")" then
+ it's a complete reference so we don't need to treat it specially.
+
+ Finally, note that archive groups must end with ')' as the last
+ character, so ensure there's some word ending like that before
+ considering this an archive group. */
+ if (NONE_SET (flags, PARSEFS_NOAR)
+ && tp == tmpbuf && tp[0] != '(' && tp[nlen-1] != ')')
+ {
+ char *n = strchr (tp, '(');
+ if (n)
+ {
+ /* This looks like the first element in an open archive group.
+ A valid group MUST have ')' as the last character. */
+ const char *e = p;
+ do
+ {
+ const char *o = e;
+ NEXT_TOKEN (e);
+ /* Find the end of this word. We don't want to unquote and
+ we don't care about quoting since we're looking for the
+ last char in the word. */
+ while (! STOP_SET (*e, stopmap|MAP_BLANK|MAP_VMSCOMMA))
+ ++e;
+ /* If we didn't move, we're done now. */
+ if (e == o)
+ break;
+ if (e[-1] == ')')
+ {
+ /* Found the end, so this is the first element in an
+ open archive group. It looks like "lib(mem".
+ Reset TP past the open paren. */
+ nlen -= (n + 1) - tp;
+ tp = n + 1;
+
+ /* We can stop looking now. */
+ break;
+ }
+ }
+ while (*e != '\0');
+
+ /* If we have just "lib(", part of something like "lib( a b)",
+ go to the next item. */
+ if (! nlen)
+ continue;
+ }
+ }
+
+ /* If we are inside an archive group, make sure it has an end. */
+ if (tp > tmpbuf)
+ {
+ if (tp[nlen-1] == ')')
+ {
+ /* This is the natural end; reset TP. */
+ tp = tmpbuf;
+
+ /* This is just ")", something like "lib(a b )": skip it. */
+ if (nlen == 1)
+ continue;
+ }
+ else
+ {
+ /* Not the end, so add a "fake" end. */
+ tp[nlen++] = ')';
+ tp[nlen] = '\0';
+ }
+ }
+#endif
+
+ /* If we're not globbing we're done: add it to the end of the chain.
+ Go to the next item in the string. */
+ if (ANY_SET (flags, PARSEFS_NOGLOB))
+ {
+ NEWELT (concat (2, prefix, tmpbuf));
+ continue;
+ }
+
+ /* If we get here we know we're doing glob expansion.
+ TP is a string in tmpbuf. NLEN is no longer used.
+ We may need to do more work: after this NAME will be set. */
+ name = tmpbuf;
+
+ /* Expand tilde if applicable. */
+ if (tmpbuf[0] == '~')
+ {
+ tildep = tilde_expand (tmpbuf);
+ if (tildep != 0)
+ name = tildep;
+ }
+
+#ifndef NO_ARCHIVES
+ /* If NAME is an archive member reference replace it with the archive
+ file name, and save the member name in MEMNAME. We will glob on the
+ archive name and then reattach MEMNAME later. */
+ if (NONE_SET (flags, PARSEFS_NOAR) && ar_name (name))
+ {
+ ar_parse_name (name, &arname, &memname);
+ name = arname;
+ }
+#endif /* !NO_ARCHIVES */
+
+ /* glob() is expensive: don't call it unless we need to. */
+ if (NONE_SET (flags, PARSEFS_EXISTS) && strpbrk (name, "?*[") == NULL)
+ {
+ globme = 0;
+ i = 1;
+ nlist = &name;
+ }
+ else
+ switch (glob (name, GLOB_NOSORT|GLOB_ALTDIRFUNC, NULL, &gl))
+ {
+ case GLOB_NOSPACE:
+ OUT_OF_MEM();
+
+ case 0:
+ /* Success. */
+ i = gl.gl_pathc;
+ nlist = (const char **)gl.gl_pathv;
+ break;
+
+ case GLOB_NOMATCH:
+ /* If we want only existing items, skip this one. */
+ if (ANY_SET (flags, PARSEFS_EXISTS))
+ {
+ i = 0;
+ break;
+ }
+ /* FALLTHROUGH */
+
+ default:
+ /* By default keep this name. */
+ i = 1;
+ nlist = &name;
+ break;
+ }
+
+ /* For each matched element, add it to the list. */
+ while (i-- > 0)
+#ifndef NO_ARCHIVES
+ if (memname != 0)
+ {
+ /* Try to glob on MEMNAME within the archive. */
+ struct nameseq *found = ar_glob (nlist[i], memname, size);
+ if (! found)
+ /* No matches. Use MEMNAME as-is. */
+ NEWELT (concat (5, prefix, nlist[i], "(", memname, ")"));
+ else
+ {
+ /* We got a chain of items. Attach them. */
+ if (*newp)
+ (*newp)->next = found;
+ else
+ *newp = found;
+
+ /* Find and set the new end. Massage names if necessary. */
+ while (1)
+ {
+ if (! cachep)
+ found->name = xstrdup (concat (2, prefix, name));
+ else if (prefix)
+ found->name = strcache_add (concat (2, prefix, name));
+
+ if (found->next == 0)
+ break;
+
+ found = found->next;
+ }
+ newp = &found->next;
+ }
+ }
+ else
+#endif /* !NO_ARCHIVES */
+ NEWELT (concat (2, prefix, nlist[i]));
+
+ if (globme)
+ globfree (&gl);
+
+#ifndef NO_ARCHIVES
+ free (arname);
+#endif
+
+ free (tildep);
+ }
+
+ *stringp = p;
+ return new;
+}
diff --git a/remake.c b/remake.c
new file mode 100644
index 0000000..5d5d67a
--- /dev/null
+++ b/remake.c
@@ -0,0 +1,1740 @@
+/* Basic dependency engine for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "job.h"
+#include "commands.h"
+#include "dep.h"
+#include "variable.h"
+#include "debug.h"
+
+#include <assert.h>
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#else
+#include <sys/file.h>
+#endif
+
+#ifdef VMS
+#include <starlet.h>
+#endif
+#ifdef WINDOWS32
+#include <io.h>
+#endif
+
+
+/* The test for circular dependencies is based on the 'updating' bit in
+ 'struct file'. However, double colon targets have separate 'struct
+ file's; make sure we always use the base of the double colon chain. */
+
+#define start_updating(_f) (((_f)->double_colon ? (_f)->double_colon : (_f))\
+ ->updating = 1)
+#define finish_updating(_f) (((_f)->double_colon ? (_f)->double_colon : (_f))\
+ ->updating = 0)
+#define is_updating(_f) (((_f)->double_colon ? (_f)->double_colon : (_f))\
+ ->updating)
+
+
+/* Incremented when a command is started (under -n, when one would be). */
+unsigned int commands_started = 0;
+
+/* Set to the goal dependency. Mostly needed for remaking makefiles. */
+static struct goaldep *goal_list;
+static struct dep *goal_dep;
+
+/* Current value for pruning the scan of the goal chain.
+ All files start with considered == 0. */
+static unsigned int considered = 0;
+
+static enum update_status update_file (struct file *file, unsigned int depth);
+static enum update_status update_file_1 (struct file *file, unsigned int depth);
+static enum update_status check_dep (struct file *file, unsigned int depth,
+ FILE_TIMESTAMP this_mtime, int *must_make);
+static enum update_status touch_file (struct file *file);
+static void remake_file (struct file *file);
+static FILE_TIMESTAMP name_mtime (const char *name);
+static const char *library_search (const char *lib, FILE_TIMESTAMP *mtime_ptr);
+
+
+/* Remake all the goals in the 'struct dep' chain GOALS. Return -1 if nothing
+ was done, 0 if all goals were updated successfully, or 1 if a goal failed.
+
+ If rebuilding_makefiles is nonzero, these goals are makefiles, so -t, -q,
+ and -n should be disabled for them unless they were also command-line
+ targets, and we should only make one goal at a time and return as soon as
+ one goal whose 'changed' member is nonzero is successfully made. */
+
+enum update_status
+update_goal_chain (struct goaldep *goaldeps)
+{
+ int t = touch_flag, q = question_flag, n = just_print_flag;
+ enum update_status status = us_none;
+
+ /* Duplicate the chain so we can remove things from it. */
+
+ struct dep *goals = copy_dep_chain ((struct dep *)goaldeps);
+
+ goal_list = rebuilding_makefiles ? goaldeps : NULL;
+
+#define MTIME(file) (rebuilding_makefiles ? file_mtime_no_search (file) \
+ : file_mtime (file))
+
+ /* Start a fresh batch of consideration. */
+ ++considered;
+
+ /* Update all the goals until they are all finished. */
+
+ while (goals != 0)
+ {
+ register struct dep *g, *lastgoal;
+
+ /* Start jobs that are waiting for the load to go down. */
+
+ start_waiting_jobs ();
+
+ /* Wait for a child to die. */
+
+ reap_children (1, 0);
+
+ lastgoal = 0;
+ g = goals;
+ while (g != 0)
+ {
+ /* Iterate over all double-colon entries for this file. */
+ struct file *file;
+ int stop = 0, any_not_updated = 0;
+
+ goal_dep = g;
+
+ for (file = g->file->double_colon ? g->file->double_colon : g->file;
+ file != NULL;
+ file = file->prev)
+ {
+ unsigned int ocommands_started;
+ enum update_status fail;
+
+ file->dontcare = ANY_SET (g->flags, RM_DONTCARE);
+
+ check_renamed (file);
+ if (rebuilding_makefiles)
+ {
+ if (file->cmd_target)
+ {
+ touch_flag = t;
+ question_flag = q;
+ just_print_flag = n;
+ }
+ else
+ touch_flag = question_flag = just_print_flag = 0;
+ }
+
+ /* Save the old value of 'commands_started' so we can compare
+ later. It will be incremented when any commands are
+ actually run. */
+ ocommands_started = commands_started;
+
+ fail = update_file (file, rebuilding_makefiles ? 1 : 0);
+ check_renamed (file);
+
+ /* Set the goal's 'changed' flag if any commands were started
+ by calling update_file above. We check this flag below to
+ decide when to give an "up to date" diagnostic. */
+ if (commands_started > ocommands_started)
+ g->changed = 1;
+
+ stop = 0;
+ if ((fail || file->updated) && status < us_question)
+ {
+ /* We updated this goal. Update STATUS and decide whether
+ to stop. */
+ if (file->update_status)
+ {
+ /* Updating failed, or -q triggered. The STATUS value
+ tells our caller which. */
+ status = file->update_status;
+ /* If -q just triggered, stop immediately. It doesn't
+ matter how much more we run, since we already know
+ the answer to return. */
+ stop = (question_flag && !keep_going_flag
+ && !rebuilding_makefiles);
+ }
+ else
+ {
+ FILE_TIMESTAMP mtime = MTIME (file);
+ check_renamed (file);
+
+ if (file->updated && g->changed &&
+ mtime != file->mtime_before_update)
+ {
+ /* Updating was done. If this is a makefile and
+ just_print_flag or question_flag is set (meaning
+ -n or -q was given and this file was specified
+ as a command-line target), don't change STATUS.
+ If STATUS is changed, we will get re-exec'd, and
+ enter an infinite loop. */
+ if (!rebuilding_makefiles
+ || (!just_print_flag && !question_flag))
+ status = us_success;
+ if (rebuilding_makefiles && file->dontcare)
+ /* This is a default makefile; stop remaking. */
+ stop = 1;
+ }
+ }
+ }
+
+ /* Keep track if any double-colon entry is not finished.
+ When they are all finished, the goal is finished. */
+ any_not_updated |= !file->updated;
+
+ file->dontcare = 0;
+
+ if (stop)
+ break;
+ }
+
+ /* Reset FILE since it is null at the end of the loop. */
+ file = g->file;
+
+ if (stop || !any_not_updated)
+ {
+ /* If we have found nothing whatever to do for the goal,
+ print a message saying nothing needs doing. */
+
+ if (!rebuilding_makefiles
+ /* If the update_status is success, we updated successfully
+ or not at all. G->changed will have been set above if
+ any commands were actually started for this goal. */
+ && file->update_status == us_success && !g->changed
+ /* Never give a message under -s or -q. */
+ && !silent_flag && !question_flag)
+ OS (message, 1, ((file->phony || file->cmds == 0)
+ ? _("Nothing to be done for '%s'.")
+ : _("'%s' is up to date.")),
+ file->name);
+
+ /* This goal is finished. Remove it from the chain. */
+ if (lastgoal == 0)
+ goals = g->next;
+ else
+ lastgoal->next = g->next;
+
+ /* Free the storage. */
+ free (g);
+
+ g = lastgoal == 0 ? goals : lastgoal->next;
+
+ if (stop)
+ break;
+ }
+ else
+ {
+ lastgoal = g;
+ g = g->next;
+ }
+ }
+
+ /* If we reached the end of the dependency graph update CONSIDERED
+ for the next pass. */
+ if (g == 0)
+ ++considered;
+ }
+
+ if (rebuilding_makefiles)
+ {
+ touch_flag = t;
+ question_flag = q;
+ just_print_flag = n;
+ }
+
+ return status;
+}
+
+/* If we're rebuilding an included makefile that failed, and we care
+ about errors, show an error message the first time. */
+
+void
+show_goal_error (void)
+{
+ struct goaldep *goal;
+
+ if ((goal_dep->flags & (RM_INCLUDED|RM_DONTCARE)) != RM_INCLUDED)
+ return;
+
+ for (goal = goal_list; goal; goal = goal->next)
+ if (goal_dep->file == goal->file)
+ {
+ if (goal->error)
+ {
+ OSS (error, &goal->floc, "%s: %s",
+ goal->file->name, strerror ((int)goal->error));
+ goal->error = 0;
+ }
+ return;
+ }
+}
+
+/* If FILE is not up to date, execute the commands for it.
+ Return 0 if successful, non-0 if unsuccessful;
+ but with some flag settings, just call 'exit' if unsuccessful.
+
+ DEPTH is the depth in recursions of this function.
+ We increment it during the consideration of our dependencies,
+ then decrement it again after finding out whether this file
+ is out of date.
+
+ If there are multiple double-colon entries for FILE,
+ each is considered in turn. */
+
+static enum update_status
+update_file (struct file *file, unsigned int depth)
+{
+ enum update_status status = us_success;
+ struct file *f;
+
+ f = file->double_colon ? file->double_colon : file;
+
+ /* Prune the dependency graph: if we've already been here on _this_
+ pass through the dependency graph, we don't have to go any further.
+ We won't reap_children until we start the next pass, so no state
+ change is possible below here until then. */
+ if (f->considered == considered)
+ {
+ /* Check for the case where a target has been tried and failed but
+ the diagnostics haven't been issued. If we need the diagnostics
+ then we will have to continue. */
+ if (!(f->updated && f->update_status > us_none
+ && !f->dontcare && f->no_diag))
+ {
+ DBF (DB_VERBOSE, _("Pruning file '%s'.\n"));
+ return f->command_state == cs_finished ? f->update_status : us_success;
+ }
+ }
+
+ /* This loop runs until we start commands for a double colon rule, or until
+ the chain is exhausted. */
+ for (; f != 0; f = f->prev)
+ {
+ enum update_status new;
+
+ f->considered = considered;
+
+ new = update_file_1 (f, depth);
+ check_renamed (f);
+
+ /* Clean up any alloca() used during the update. */
+ alloca (0);
+
+ /* If we got an error, don't bother with double_colon etc. */
+ if (new && !keep_going_flag)
+ return new;
+
+ if (f->command_state == cs_running
+ || f->command_state == cs_deps_running)
+ /* Don't run other :: rules for this target until
+ this rule is finished. */
+ return us_success;
+
+ if (new > status)
+ status = new;
+ }
+
+ /* Process the remaining rules in the double colon chain so they're marked
+ considered. Start their prerequisites, too. */
+ if (file->double_colon)
+ for (; f != 0 ; f = f->prev)
+ {
+ struct dep *d;
+
+ f->considered = considered;
+
+ for (d = f->deps; d != 0; d = d->next)
+ {
+ enum update_status new = update_file (d->file, depth + 1);
+ if (new > status)
+ status = new;
+ }
+ }
+
+ return status;
+}
+
+/* Show a message stating the target failed to build. */
+
+static void
+complain (struct file *file)
+{
+ /* If this file has no_diag set then it means we tried to update it
+ before in the dontcare mode and failed. The target that actually
+ failed is not necessarily this file but could be one of its direct
+ or indirect dependencies. So traverse this file's dependencies and
+ find the one that actually caused the failure. */
+
+ struct dep *d;
+
+ for (d = file->deps; d != 0; d = d->next)
+ {
+ if (d->file->updated && d->file->update_status > us_none && file->no_diag)
+ {
+ complain (d->file);
+ break;
+ }
+ }
+
+ if (d == 0)
+ {
+ show_goal_error ();
+
+ /* Didn't find any dependencies to complain about. */
+ if (file->parent)
+ {
+ size_t l = strlen (file->name) + strlen (file->parent->name) + 4;
+ const char *m = _("%sNo rule to make target '%s', needed by '%s'%s");
+
+ if (!keep_going_flag)
+ fatal (NILF, l, m, "", file->name, file->parent->name, "");
+
+ error (NILF, l, m, "*** ", file->name, file->parent->name, ".");
+ }
+ else
+ {
+ size_t l = strlen (file->name) + 4;
+ const char *m = _("%sNo rule to make target '%s'%s");
+
+ if (!keep_going_flag)
+ fatal (NILF, l, m, "", file->name, "");
+
+ error (NILF, l, m, "*** ", file->name, ".");
+ }
+
+ file->no_diag = 0;
+ }
+}
+
+/* Consider a single 'struct file' and update it as appropriate.
+ Return 0 on success, or non-0 on failure. */
+
+static enum update_status
+update_file_1 (struct file *file, unsigned int depth)
+{
+ enum update_status dep_status = us_success;
+ FILE_TIMESTAMP this_mtime;
+ int noexist, must_make, deps_changed;
+ struct file *ofile;
+ struct dep *d, *ad;
+ struct dep amake;
+ int running = 0;
+
+ DBF (DB_VERBOSE, _("Considering target file '%s'.\n"));
+
+ if (file->updated)
+ {
+ if (file->update_status > us_none)
+ {
+ DBF (DB_VERBOSE,
+ _("Recently tried and failed to update file '%s'.\n"));
+
+ /* If the file we tried to make is marked no_diag then no message
+ was printed about it when it failed during the makefile rebuild.
+ If we're trying to build it again in the normal rebuild, print a
+ message now. */
+ if (file->no_diag && !file->dontcare)
+ complain (file);
+
+ return file->update_status;
+ }
+
+ DBF (DB_VERBOSE, _("File '%s' was considered already.\n"));
+ return 0;
+ }
+
+ switch (file->command_state)
+ {
+ case cs_not_started:
+ case cs_deps_running:
+ break;
+ case cs_running:
+ DBF (DB_VERBOSE, _("Still updating file '%s'.\n"));
+ return 0;
+ case cs_finished:
+ DBF (DB_VERBOSE, _("Finished updating file '%s'.\n"));
+ return file->update_status;
+ default:
+ abort ();
+ }
+
+ /* Determine whether the diagnostics will be issued should this update
+ fail. */
+ file->no_diag = file->dontcare;
+
+ ++depth;
+
+ /* Notice recursive update of the same file. */
+ start_updating (file);
+
+ /* We might change file if we find a different one via vpath;
+ remember this one to turn off updating. */
+ ofile = file;
+
+ /* Looking at the file's modtime beforehand allows the possibility
+ that its name may be changed by a VPATH search, and thus it may
+ not need an implicit rule. If this were not done, the file
+ might get implicit commands that apply to its initial name, only
+ to have that name replaced with another found by VPATH search. */
+
+ this_mtime = file_mtime (file);
+ check_renamed (file);
+ noexist = this_mtime == NONEXISTENT_MTIME;
+ if (noexist)
+ DBF (DB_BASIC, _("File '%s' does not exist.\n"));
+ else if (ORDINARY_MTIME_MIN <= this_mtime && this_mtime <= ORDINARY_MTIME_MAX
+ && file->low_resolution_time)
+ {
+ /* Avoid spurious rebuilds due to low resolution time stamps. */
+ int ns = FILE_TIMESTAMP_NS (this_mtime);
+ if (ns != 0)
+ OS (error, NILF,
+ _("*** Warning: .LOW_RESOLUTION_TIME file '%s' has a high resolution time stamp"),
+ file->name);
+ this_mtime += FILE_TIMESTAMPS_PER_S - 1 - ns;
+ }
+
+ must_make = noexist;
+
+ /* If file was specified as a target with no commands,
+ come up with some default commands. */
+
+ if (!file->phony && file->cmds == 0 && !file->tried_implicit)
+ {
+ if (try_implicit_rule (file, depth))
+ DBF (DB_IMPLICIT, _("Found an implicit rule for '%s'.\n"));
+ else
+ DBF (DB_IMPLICIT, _("No implicit rule found for '%s'.\n"));
+ file->tried_implicit = 1;
+ }
+ if (file->cmds == 0 && !file->is_target
+ && default_file != 0 && default_file->cmds != 0)
+ {
+ DBF (DB_IMPLICIT, _("Using default recipe for '%s'.\n"));
+ file->cmds = default_file->cmds;
+ }
+
+ /* Update all non-intermediate files we depend on, if necessary, and see
+ whether any of them is more recent than this file. We need to walk our
+ deps, AND the deps of any also_make targets to ensure everything happens
+ in the correct order. */
+
+ amake.file = file;
+ amake.next = file->also_make;
+ ad = &amake;
+ while (ad)
+ {
+ struct dep *lastd = 0;
+
+ /* Find the deps we're scanning */
+ d = ad->file->deps;
+ ad = ad->next;
+
+ while (d)
+ {
+ enum update_status new;
+ FILE_TIMESTAMP mtime;
+ int maybe_make;
+ int dontcare = 0;
+
+ check_renamed (d->file);
+
+ mtime = file_mtime (d->file);
+ check_renamed (d->file);
+
+ if (is_updating (d->file))
+ {
+ OSS (error, NILF, _("Circular %s <- %s dependency dropped."),
+ file->name, d->file->name);
+ /* We cannot free D here because our the caller will still have
+ a reference to it when we were called recursively via
+ check_dep below. */
+ if (lastd == 0)
+ file->deps = d->next;
+ else
+ lastd->next = d->next;
+ d = d->next;
+ continue;
+ }
+
+ d->file->parent = file;
+ maybe_make = must_make;
+
+ /* Inherit dontcare flag from our parent. */
+ if (rebuilding_makefiles)
+ {
+ dontcare = d->file->dontcare;
+ d->file->dontcare = file->dontcare;
+ }
+
+ new = check_dep (d->file, depth, this_mtime, &maybe_make);
+ if (new > dep_status)
+ dep_status = new;
+
+ /* Restore original dontcare flag. */
+ if (rebuilding_makefiles)
+ d->file->dontcare = dontcare;
+
+ if (! d->ignore_mtime)
+ must_make = maybe_make;
+
+ check_renamed (d->file);
+
+ {
+ register struct file *f = d->file;
+ if (f->double_colon)
+ f = f->double_colon;
+ do
+ {
+ running |= (f->command_state == cs_running
+ || f->command_state == cs_deps_running);
+ f = f->prev;
+ }
+ while (f != 0);
+ }
+
+ if (dep_status && !keep_going_flag)
+ break;
+
+ if (!running)
+ /* The prereq is considered changed if the timestamp has changed
+ while it was built, OR it doesn't exist. */
+ d->changed = ((file_mtime (d->file) != mtime)
+ || (mtime == NONEXISTENT_MTIME));
+
+ lastd = d;
+ d = d->next;
+ }
+ }
+
+ /* Now we know whether this target needs updating.
+ If it does, update all the intermediate files we depend on. */
+
+ if (must_make || always_make_flag)
+ {
+ for (d = file->deps; d != 0; d = d->next)
+ if (d->file->intermediate)
+ {
+ enum update_status new;
+ int dontcare = 0;
+
+ FILE_TIMESTAMP mtime = file_mtime (d->file);
+ check_renamed (d->file);
+ d->file->parent = file;
+
+ /* Inherit dontcare flag from our parent. */
+ if (rebuilding_makefiles)
+ {
+ dontcare = d->file->dontcare;
+ d->file->dontcare = file->dontcare;
+ }
+
+ /* We may have already considered this file, when we didn't know
+ we'd need to update it. Force update_file() to consider it and
+ not prune it. */
+ d->file->considered = 0;
+
+ new = update_file (d->file, depth);
+ if (new > dep_status)
+ dep_status = new;
+
+ /* Restore original dontcare flag. */
+ if (rebuilding_makefiles)
+ d->file->dontcare = dontcare;
+
+ check_renamed (d->file);
+
+ {
+ register struct file *f = d->file;
+ if (f->double_colon)
+ f = f->double_colon;
+ do
+ {
+ running |= (f->command_state == cs_running
+ || f->command_state == cs_deps_running);
+ f = f->prev;
+ }
+ while (f != 0);
+ }
+
+ if (dep_status && !keep_going_flag)
+ break;
+
+ if (!running)
+ d->changed = ((file->phony && file->cmds != 0)
+ || file_mtime (d->file) != mtime);
+ }
+ }
+
+ finish_updating (file);
+ finish_updating (ofile);
+
+ DBF (DB_VERBOSE, _("Finished prerequisites of target file '%s'.\n"));
+
+ if (running)
+ {
+ set_command_state (file, cs_deps_running);
+ --depth;
+ DBF (DB_VERBOSE, _("The prerequisites of '%s' are being made.\n"));
+ return 0;
+ }
+
+ /* If any dependency failed, give up now. */
+
+ if (dep_status)
+ {
+ /* I'm not sure if we can't just assign dep_status... */
+ file->update_status = dep_status == us_none ? us_failed : dep_status;
+ notice_finished_file (file);
+
+ --depth;
+
+ DBF (DB_VERBOSE, _("Giving up on target file '%s'.\n"));
+
+ if (depth == 0 && keep_going_flag
+ && !just_print_flag && !question_flag)
+ OS (error, NILF,
+ _("Target '%s' not remade because of errors."), file->name);
+
+ return dep_status;
+ }
+
+ if (file->command_state == cs_deps_running)
+ /* The commands for some deps were running on the last iteration, but
+ they have finished now. Reset the command_state to not_started to
+ simplify later bookkeeping. It is important that we do this only
+ when the prior state was cs_deps_running, because that prior state
+ was definitely propagated to FILE's also_make's by set_command_state
+ (called above), but in another state an also_make may have
+ independently changed to finished state, and we would confuse that
+ file's bookkeeping (updated, but not_started is bogus state). */
+ set_command_state (file, cs_not_started);
+
+ /* Now record which prerequisites are more
+ recent than this file, so we can define $?. */
+
+ deps_changed = 0;
+ for (d = file->deps; d != 0; d = d->next)
+ {
+ FILE_TIMESTAMP d_mtime = file_mtime (d->file);
+ check_renamed (d->file);
+
+ if (! d->ignore_mtime)
+ {
+#if 1
+ /* %%% In version 4, remove this code completely to
+ implement not remaking deps if their deps are newer
+ than their parents. */
+ if (d_mtime == NONEXISTENT_MTIME && !d->file->intermediate)
+ /* We must remake if this dep does not
+ exist and is not intermediate. */
+ must_make = 1;
+#endif
+
+ /* Set DEPS_CHANGED if this dep actually changed. */
+ deps_changed |= d->changed;
+ }
+
+ /* Set D->changed if either this dep actually changed,
+ or its dependent, FILE, is older or does not exist. */
+ d->changed |= noexist || d_mtime > this_mtime;
+
+ if (!noexist && ISDB (DB_BASIC|DB_VERBOSE))
+ {
+ const char *fmt = 0;
+
+ if (d->ignore_mtime)
+ {
+ if (ISDB (DB_VERBOSE))
+ fmt = _("Prerequisite '%s' is order-only for target '%s'.\n");
+ }
+ else if (d_mtime == NONEXISTENT_MTIME)
+ {
+ if (ISDB (DB_BASIC))
+ fmt = _("Prerequisite '%s' of target '%s' does not exist.\n");
+ }
+ else if (d->changed)
+ {
+ if (ISDB (DB_BASIC))
+ fmt = _("Prerequisite '%s' is newer than target '%s'.\n");
+ }
+ else if (ISDB (DB_VERBOSE))
+ fmt = _("Prerequisite '%s' is older than target '%s'.\n");
+
+ if (fmt)
+ {
+ print_spaces (depth);
+ printf (fmt, dep_name (d), file->name);
+ fflush (stdout);
+ }
+ }
+ }
+
+ /* Here depth returns to the value it had when we were called. */
+ depth--;
+
+ if (file->double_colon && file->deps == 0)
+ {
+ must_make = 1;
+ DBF (DB_BASIC,
+ _("Target '%s' is double-colon and has no prerequisites.\n"));
+ }
+ else if (!noexist && file->is_target && !deps_changed && file->cmds == 0
+ && !always_make_flag)
+ {
+ must_make = 0;
+ DBF (DB_VERBOSE,
+ _("No recipe for '%s' and no prerequisites actually changed.\n"));
+ }
+ else if (!must_make && file->cmds != 0 && always_make_flag)
+ {
+ must_make = 1;
+ DBF (DB_VERBOSE, _("Making '%s' due to always-make flag.\n"));
+ }
+
+ if (!must_make)
+ {
+ if (ISDB (DB_VERBOSE))
+ {
+ print_spaces (depth);
+ printf (_("No need to remake target '%s'"), file->name);
+ if (!streq (file->name, file->hname))
+ printf (_("; using VPATH name '%s'"), file->hname);
+ puts (".");
+ fflush (stdout);
+ }
+
+ notice_finished_file (file);
+
+ /* Since we don't need to remake the file, convert it to use the
+ VPATH filename if we found one. hfile will be either the
+ local name if no VPATH or the VPATH name if one was found. */
+
+ while (file)
+ {
+ file->name = file->hname;
+ file = file->prev;
+ }
+
+ return 0;
+ }
+
+ DBF (DB_BASIC, _("Must remake target '%s'.\n"));
+
+ /* It needs to be remade. If it's VPATH and not reset via GPATH, toss the
+ VPATH. */
+ if (!streq (file->name, file->hname))
+ {
+ DB (DB_BASIC, (_(" Ignoring VPATH name '%s'.\n"), file->hname));
+ file->ignore_vpath = 1;
+ }
+
+ /* Now, take appropriate actions to remake the file. */
+ remake_file (file);
+
+ if (file->command_state != cs_finished)
+ {
+ DBF (DB_VERBOSE, _("Recipe of '%s' is being run.\n"));
+ return 0;
+ }
+
+ switch (file->update_status)
+ {
+ case us_failed:
+ DBF (DB_BASIC, _("Failed to remake target file '%s'.\n"));
+ break;
+ case us_success:
+ DBF (DB_BASIC, _("Successfully remade target file '%s'.\n"));
+ break;
+ case us_question:
+ DBF (DB_BASIC, _("Target file '%s' needs to be remade under -q.\n"));
+ break;
+ case us_none:
+ break;
+ }
+
+ file->updated = 1;
+ return file->update_status;
+}
+
+/* Set FILE's 'updated' flag and re-check its mtime and the mtime's of all
+ files listed in its 'also_make' member. Under -t, this function also
+ touches FILE.
+
+ On return, FILE->update_status will no longer be us_none if it was. */
+
+void
+notice_finished_file (struct file *file)
+{
+ struct dep *d;
+ int ran = file->command_state == cs_running;
+ int touched = 0;
+
+ file->command_state = cs_finished;
+ file->updated = 1;
+
+ if (touch_flag
+ /* The update status will be:
+ us_success if 0 or more commands (+ or ${MAKE}) were run and won;
+ us_none if this target was not remade;
+ >us_none if some commands were run and lost.
+ We touch the target if it has commands which either were not run
+ or won when they ran (i.e. status is 0). */
+ && file->update_status == us_success)
+ {
+ if (file->cmds != 0 && file->cmds->any_recurse)
+ {
+ /* If all the command lines were recursive,
+ we don't want to do the touching. */
+ unsigned int i;
+ for (i = 0; i < file->cmds->ncommand_lines; ++i)
+ if (!(file->cmds->lines_flags[i] & COMMANDS_RECURSE))
+ goto have_nonrecursing;
+ }
+ else
+ {
+ have_nonrecursing:
+ if (file->phony)
+ file->update_status = us_success;
+ /* According to POSIX, -t doesn't affect targets with no cmds. */
+ else if (file->cmds != 0)
+ {
+ /* Should set file's modification date and do nothing else. */
+ file->update_status = touch_file (file);
+
+ /* Pretend we ran a real touch command, to suppress the
+ "'foo' is up to date" message. */
+ commands_started++;
+
+ /* Request for the timestamp to be updated (and distributed
+ to the double-colon entries). Simply setting ran=1 would
+ almost have done the trick, but messes up with the also_make
+ updating logic below. */
+ touched = 1;
+ }
+ }
+ }
+
+ if (file->mtime_before_update == UNKNOWN_MTIME)
+ file->mtime_before_update = file->last_mtime;
+
+ if ((ran && !file->phony) || touched)
+ {
+ int i = 0;
+
+ /* If -n, -t, or -q and all the commands are recursive, we ran them so
+ really check the target's mtime again. Otherwise, assume the target
+ would have been updated. */
+
+ if ((question_flag || just_print_flag || touch_flag) && file->cmds)
+ {
+ for (i = file->cmds->ncommand_lines; i > 0; --i)
+ if (! (file->cmds->lines_flags[i-1] & COMMANDS_RECURSE))
+ break;
+ }
+
+ /* If there were no commands at all, it's always new. */
+
+ else if (file->is_target && file->cmds == 0)
+ i = 1;
+
+ file->last_mtime = i == 0 ? UNKNOWN_MTIME : NEW_MTIME;
+ }
+
+ if (file->double_colon)
+ {
+ /* If this is a double colon rule and it is the last one to be
+ updated, propagate the change of modification time to all the
+ double-colon entries for this file.
+
+ We do it on the last update because it is important to handle
+ individual entries as separate rules with separate timestamps
+ while they are treated as targets and then as one rule with the
+ unified timestamp when they are considered as a prerequisite
+ of some target. */
+
+ struct file *f;
+ FILE_TIMESTAMP max_mtime = file->last_mtime;
+
+ /* Check that all rules were updated and at the same time find
+ the max timestamp. We assume UNKNOWN_MTIME is newer then
+ any other value. */
+ for (f = file->double_colon; f != 0 && f->updated; f = f->prev)
+ if (max_mtime != UNKNOWN_MTIME
+ && (f->last_mtime == UNKNOWN_MTIME || f->last_mtime > max_mtime))
+ max_mtime = f->last_mtime;
+
+ if (f == 0)
+ for (f = file->double_colon; f != 0; f = f->prev)
+ f->last_mtime = max_mtime;
+ }
+
+ if (ran && file->update_status != us_none)
+ /* We actually tried to update FILE, which has
+ updated its also_make's as well (if it worked).
+ If it didn't work, it wouldn't work again for them.
+ So mark them as updated with the same status. */
+ for (d = file->also_make; d != 0; d = d->next)
+ {
+ d->file->command_state = cs_finished;
+ d->file->updated = 1;
+ d->file->update_status = file->update_status;
+
+ if (ran && !d->file->phony)
+ /* Fetch the new modification time.
+ We do this instead of just invalidating the cached time
+ so that a vpath_search can happen. Otherwise, it would
+ never be done because the target is already updated. */
+ f_mtime (d->file, 0);
+ }
+ else if (file->update_status == us_none)
+ /* Nothing was done for FILE, but it needed nothing done.
+ So mark it now as "succeeded". */
+ file->update_status = us_success;
+}
+
+/* Check whether another file (whose mtime is THIS_MTIME) needs updating on
+ account of a dependency which is file FILE. If it does, store 1 in
+ *MUST_MAKE_PTR. In the process, update any non-intermediate files that
+ FILE depends on (including FILE itself). Return nonzero if any updating
+ failed. */
+
+static enum update_status
+check_dep (struct file *file, unsigned int depth,
+ FILE_TIMESTAMP this_mtime, int *must_make_ptr)
+{
+ struct file *ofile;
+ struct dep *d;
+ enum update_status dep_status = us_success;
+
+ ++depth;
+ start_updating (file);
+
+ /* We might change file if we find a different one via vpath;
+ remember this one to turn off updating. */
+ ofile = file;
+
+ if (file->phony || !file->intermediate)
+ {
+ /* If this is a non-intermediate file, update it and record whether it
+ is newer than THIS_MTIME. */
+ FILE_TIMESTAMP mtime;
+ dep_status = update_file (file, depth);
+ check_renamed (file);
+ mtime = file_mtime (file);
+ check_renamed (file);
+ if (mtime == NONEXISTENT_MTIME || mtime > this_mtime)
+ *must_make_ptr = 1;
+ }
+ else
+ {
+ /* FILE is an intermediate file. */
+ FILE_TIMESTAMP mtime;
+
+ if (!file->phony && file->cmds == 0 && !file->tried_implicit)
+ {
+ if (try_implicit_rule (file, depth))
+ DBF (DB_IMPLICIT, _("Found an implicit rule for '%s'.\n"));
+ else
+ DBF (DB_IMPLICIT, _("No implicit rule found for '%s'.\n"));
+ file->tried_implicit = 1;
+ }
+ if (file->cmds == 0 && !file->is_target
+ && default_file != 0 && default_file->cmds != 0)
+ {
+ DBF (DB_IMPLICIT, _("Using default commands for '%s'.\n"));
+ file->cmds = default_file->cmds;
+ }
+
+ check_renamed (file);
+ mtime = file_mtime (file);
+ check_renamed (file);
+ if (mtime != NONEXISTENT_MTIME && mtime > this_mtime)
+ /* If the intermediate file actually exists and is newer, then we
+ should remake from it. */
+ *must_make_ptr = 1;
+ else
+ {
+ /* Otherwise, update all non-intermediate files we depend on, if
+ necessary, and see whether any of them is more recent than the
+ file on whose behalf we are checking. */
+ struct dep *ld;
+ int deps_running = 0;
+
+ /* If this target is not running, set it's state so that we check it
+ fresh. It could be it was checked as part of an order-only
+ prerequisite and so wasn't rebuilt then, but should be now. */
+ if (file->command_state != cs_running)
+ {
+ /* If the target was waiting for a dependency it has to be
+ reconsidered, as that dependency might have finished. */
+ if (file->command_state == cs_deps_running)
+ file->considered = 0;
+
+ set_command_state (file, cs_not_started);
+ }
+
+ ld = 0;
+ d = file->deps;
+ while (d != 0)
+ {
+ enum update_status new;
+ int maybe_make;
+
+ if (is_updating (d->file))
+ {
+ OSS (error, NILF, _("Circular %s <- %s dependency dropped."),
+ file->name, d->file->name);
+ if (ld == 0)
+ {
+ file->deps = d->next;
+ free_dep (d);
+ d = file->deps;
+ }
+ else
+ {
+ ld->next = d->next;
+ free_dep (d);
+ d = ld->next;
+ }
+ continue;
+ }
+
+ d->file->parent = file;
+ maybe_make = *must_make_ptr;
+ new = check_dep (d->file, depth, this_mtime, &maybe_make);
+ if (new > dep_status)
+ dep_status = new;
+
+ if (! d->ignore_mtime)
+ *must_make_ptr = maybe_make;
+ check_renamed (d->file);
+ if (dep_status && !keep_going_flag)
+ break;
+
+ if (d->file->command_state == cs_running
+ || d->file->command_state == cs_deps_running)
+ deps_running = 1;
+
+ ld = d;
+ d = d->next;
+ }
+
+ if (deps_running)
+ /* Record that some of FILE's deps are still being made.
+ This tells the upper levels to wait on processing it until the
+ commands are finished. */
+ set_command_state (file, cs_deps_running);
+ }
+ }
+
+ finish_updating (file);
+ finish_updating (ofile);
+
+ return dep_status;
+}
+
+/* Touch FILE. Return us_success if successful, us_failed if not. */
+
+#define TOUCH_ERROR(call) do{ perror_with_name ((call), file->name); \
+ return us_failed; }while(0)
+
+static enum update_status
+touch_file (struct file *file)
+{
+ if (!silent_flag)
+ OS (message, 0, "touch %s", file->name);
+
+ /* Print-only (-n) takes precedence over touch (-t). */
+ if (just_print_flag)
+ return us_success;
+
+#ifndef NO_ARCHIVES
+ if (ar_name (file->name))
+ return ar_touch (file->name) ? us_failed : us_success;
+ else
+#endif
+ {
+ int fd;
+
+ EINTRLOOP (fd, open (file->name, O_RDWR | O_CREAT, 0666));
+ if (fd < 0)
+ TOUCH_ERROR ("touch: open: ");
+ else
+ {
+ struct stat statbuf;
+ char buf = 'x';
+ int e;
+
+ EINTRLOOP (e, fstat (fd, &statbuf));
+ if (e < 0)
+ TOUCH_ERROR ("touch: fstat: ");
+ /* Rewrite character 0 same as it already is. */
+ EINTRLOOP (e, read (fd, &buf, 1));
+ if (e < 0)
+ TOUCH_ERROR ("touch: read: ");
+ {
+ off_t o;
+ EINTRLOOP (o, lseek (fd, 0L, 0));
+ if (o < 0L)
+ TOUCH_ERROR ("touch: lseek: ");
+ }
+ EINTRLOOP (e, write (fd, &buf, 1));
+ if (e < 0)
+ TOUCH_ERROR ("touch: write: ");
+
+ /* If file length was 0, we just changed it, so change it back. */
+ if (statbuf.st_size == 0)
+ {
+ (void) close (fd);
+ EINTRLOOP (fd, open (file->name, O_RDWR | O_TRUNC, 0666));
+ if (fd < 0)
+ TOUCH_ERROR ("touch: open: ");
+ }
+ (void) close (fd);
+ }
+ }
+
+ return us_success;
+}
+
+/* Having checked and updated the dependencies of FILE,
+ do whatever is appropriate to remake FILE itself.
+ Return the status from executing FILE's commands. */
+
+static void
+remake_file (struct file *file)
+{
+ if (file->cmds == 0)
+ {
+ if (file->phony)
+ /* Phony target. Pretend it succeeded. */
+ file->update_status = us_success;
+ else if (file->is_target)
+ /* This is a nonexistent target file we cannot make.
+ Pretend it was successfully remade. */
+ file->update_status = us_success;
+ else
+ {
+ /* This is a dependency file we cannot remake. Fail. */
+ if (!rebuilding_makefiles || !file->dontcare)
+ complain (file);
+ file->update_status = us_failed;
+ }
+ }
+ else
+ {
+ chop_commands (file->cmds);
+
+ /* The normal case: start some commands. */
+ if (!touch_flag || file->cmds->any_recurse)
+ {
+ execute_file_commands (file);
+ return;
+ }
+
+ /* This tells notice_finished_file it is ok to touch the file. */
+ file->update_status = us_success;
+ }
+
+ /* This does the touching under -t. */
+ notice_finished_file (file);
+}
+
+/* Return the mtime of a file, given a 'struct file'.
+ Caches the time in the struct file to avoid excess stat calls.
+
+ If the file is not found, and SEARCH is nonzero, VPATH searching and
+ replacement is done. If that fails, a library (-lLIBNAME) is tried and
+ the library's actual name (/lib/libLIBNAME.a, etc.) is substituted into
+ FILE. */
+
+FILE_TIMESTAMP
+f_mtime (struct file *file, int search)
+{
+ FILE_TIMESTAMP mtime;
+ int propagate_timestamp;
+
+ /* File's mtime is not known; must get it from the system. */
+
+#ifndef NO_ARCHIVES
+ if (ar_name (file->name))
+ {
+ /* This file is an archive-member reference. */
+
+ char *arname, *memname;
+ struct file *arfile;
+ time_t member_date;
+
+ /* Find the archive's name. */
+ ar_parse_name (file->name, &arname, &memname);
+
+ /* Find the modification time of the archive itself.
+ Also allow for its name to be changed via VPATH search. */
+ arfile = lookup_file (arname);
+ if (arfile == 0)
+ arfile = enter_file (strcache_add (arname));
+ mtime = f_mtime (arfile, search);
+ check_renamed (arfile);
+ if (search && strcmp (arfile->hname, arname))
+ {
+ /* The archive's name has changed.
+ Change the archive-member reference accordingly. */
+
+ char *name;
+ unsigned int arlen, memlen;
+
+ arlen = strlen (arfile->hname);
+ memlen = strlen (memname);
+
+ name = alloca (arlen + 1 + memlen + 2);
+ memcpy (name, arfile->hname, arlen);
+ name[arlen] = '(';
+ memcpy (name + arlen + 1, memname, memlen);
+ name[arlen + 1 + memlen] = ')';
+ name[arlen + 1 + memlen + 1] = '\0';
+
+ /* If the archive was found with GPATH, make the change permanent;
+ otherwise defer it until later. */
+ if (arfile->name == arfile->hname)
+ rename_file (file, strcache_add (name));
+ else
+ rehash_file (file, strcache_add (name));
+ check_renamed (file);
+ }
+
+ free (arname);
+
+ file->low_resolution_time = 1;
+
+ if (mtime == NONEXISTENT_MTIME)
+ /* The archive doesn't exist, so its members don't exist either. */
+ return NONEXISTENT_MTIME;
+
+ member_date = ar_member_date (file->hname);
+ mtime = (member_date == (time_t) -1
+ ? NONEXISTENT_MTIME
+ : file_timestamp_cons (file->hname, member_date, 0));
+ }
+ else
+#endif
+ {
+ mtime = name_mtime (file->name);
+
+ if (mtime == NONEXISTENT_MTIME && search && !file->ignore_vpath)
+ {
+ /* If name_mtime failed, search VPATH. */
+ const char *name = vpath_search (file->name, &mtime, NULL, NULL);
+ if (name
+ /* Last resort, is it a library (-lxxx)? */
+ || (file->name[0] == '-' && file->name[1] == 'l'
+ && (name = library_search (file->name, &mtime)) != 0))
+ {
+ int name_len;
+
+ if (mtime != UNKNOWN_MTIME)
+ /* vpath_search and library_search store UNKNOWN_MTIME
+ if they didn't need to do a stat call for their work. */
+ file->last_mtime = mtime;
+
+ /* If we found it in VPATH, see if it's in GPATH too; if so,
+ change the name right now; if not, defer until after the
+ dependencies are updated. */
+#ifndef VMS
+ name_len = strlen (name) - strlen (file->name) - 1;
+#else
+ name_len = strlen (name) - strlen (file->name);
+ if (name[name_len - 1] == '/')
+ name_len--;
+#endif
+ if (gpath_search (name, name_len))
+ {
+ rename_file (file, name);
+ check_renamed (file);
+ return file_mtime (file);
+ }
+
+ rehash_file (file, name);
+ check_renamed (file);
+ /* If the result of a vpath search is -o or -W, preserve it.
+ Otherwise, find the mtime of the resulting file. */
+ if (mtime != OLD_MTIME && mtime != NEW_MTIME)
+ mtime = name_mtime (name);
+ }
+ }
+ }
+
+ /* Files can have bogus timestamps that nothing newly made will be
+ "newer" than. Updating their dependents could just result in loops.
+ So notify the user of the anomaly with a warning.
+
+ We only need to do this once, for now. */
+
+ if (!clock_skew_detected
+ && mtime != NONEXISTENT_MTIME && mtime != NEW_MTIME
+ && !file->updated)
+ {
+ static FILE_TIMESTAMP adjusted_now;
+
+ FILE_TIMESTAMP adjusted_mtime = mtime;
+
+#if defined(WINDOWS32) || defined(__MSDOS__)
+ /* Experimentation has shown that FAT filesystems can set file times
+ up to 3 seconds into the future! Play it safe. */
+
+#define FAT_ADJ_OFFSET (FILE_TIMESTAMP) 3
+
+ FILE_TIMESTAMP adjustment = FAT_ADJ_OFFSET << FILE_TIMESTAMP_LO_BITS;
+ if (ORDINARY_MTIME_MIN + adjustment <= adjusted_mtime)
+ adjusted_mtime -= adjustment;
+#elif defined(__EMX__)
+ /* FAT filesystems round time to the nearest even second!
+ Allow for any file (NTFS or FAT) to perhaps suffer from this
+ brain damage. */
+ FILE_TIMESTAMP adjustment = (((FILE_TIMESTAMP_S (adjusted_mtime) & 1) == 0
+ && FILE_TIMESTAMP_NS (adjusted_mtime) == 0)
+ ? (FILE_TIMESTAMP) 1 << FILE_TIMESTAMP_LO_BITS
+ : 0);
+#endif
+
+ /* If the file's time appears to be in the future, update our
+ concept of the present and try once more. */
+ if (adjusted_now < adjusted_mtime)
+ {
+ int resolution;
+ FILE_TIMESTAMP now = file_timestamp_now (&resolution);
+ adjusted_now = now + (resolution - 1);
+ if (adjusted_now < adjusted_mtime)
+ {
+#ifdef NO_FLOAT
+ OS (error, NILF,
+ _("Warning: File '%s' has modification time in the future"),
+ file->name);
+#else
+ double from_now =
+ (FILE_TIMESTAMP_S (mtime) - FILE_TIMESTAMP_S (now)
+ + ((FILE_TIMESTAMP_NS (mtime) - FILE_TIMESTAMP_NS (now))
+ / 1e9));
+ char from_now_string[100];
+
+ if (from_now >= 99 && from_now <= ULONG_MAX)
+ sprintf (from_now_string, "%lu", (unsigned long) from_now);
+ else
+ sprintf (from_now_string, "%.2g", from_now);
+ OSS (error, NILF,
+ _("Warning: File '%s' has modification time %s s in the future"),
+ file->name, from_now_string);
+#endif
+ clock_skew_detected = 1;
+ }
+ }
+ }
+
+ /* Store the mtime into all the entries for this file for which it is safe
+ to do so: avoid propagating timestamps to double-colon rules that haven't
+ been examined so they're run or not based on the pre-update timestamp. */
+ if (file->double_colon)
+ file = file->double_colon;
+
+ propagate_timestamp = file->updated;
+ do
+ {
+ /* If this file is not implicit but it is intermediate then it was
+ made so by the .INTERMEDIATE target. If this file has never
+ been built by us but was found now, it existed before make
+ started. So, turn off the intermediate bit so make doesn't
+ delete it, since it didn't create it. */
+ if (mtime != NONEXISTENT_MTIME && file->command_state == cs_not_started
+ && !file->tried_implicit && file->intermediate)
+ file->intermediate = 0;
+
+ if (file->updated == propagate_timestamp)
+ file->last_mtime = mtime;
+ file = file->prev;
+ }
+ while (file != 0);
+
+ return mtime;
+}
+
+
+/* Return the mtime of the file or archive-member reference NAME. */
+
+/* First, we check with stat(). If the file does not exist, then we return
+ NONEXISTENT_MTIME. If it does, and the symlink check flag is set, then
+ examine each indirection of the symlink and find the newest mtime.
+ This causes one duplicate stat() when -L is being used, but the code is
+ much cleaner. */
+
+static FILE_TIMESTAMP
+name_mtime (const char *name)
+{
+ FILE_TIMESTAMP mtime;
+ struct stat st;
+ int e;
+
+ EINTRLOOP (e, stat (name, &st));
+ if (e == 0)
+ mtime = FILE_TIMESTAMP_STAT_MODTIME (name, st);
+ else if (errno == ENOENT || errno == ENOTDIR)
+ mtime = NONEXISTENT_MTIME;
+ else
+ {
+ perror_with_name ("stat: ", name);
+ return NONEXISTENT_MTIME;
+ }
+
+ /* If we get here we either found it, or it doesn't exist.
+ If it doesn't exist see if we can use a symlink mtime instead. */
+
+#ifdef MAKE_SYMLINKS
+#ifndef S_ISLNK
+# define S_ISLNK(_m) (((_m)&S_IFMT)==S_IFLNK)
+#endif
+ if (check_symlink_flag)
+ {
+ PATH_VAR (lpath);
+
+ /* Check each symbolic link segment (if any). Find the latest mtime
+ amongst all of them (and the target file of course).
+ Note that we have already successfully dereferenced all the links
+ above. So, if we run into any error trying to lstat(), or
+ readlink(), or whatever, something bizarre-o happened. Just give up
+ and use whatever mtime we've already computed at that point. */
+ strcpy (lpath, name);
+ while (1)
+ {
+ FILE_TIMESTAMP ltime;
+ PATH_VAR (lbuf);
+ long llen;
+ char *p;
+
+ EINTRLOOP (e, lstat (lpath, &st));
+ if (e)
+ {
+ /* Just take what we have so far. */
+ if (errno != ENOENT && errno != ENOTDIR)
+ perror_with_name ("lstat: ", lpath);
+ break;
+ }
+
+ /* If this is not a symlink, we're done (we started with the real
+ file's mtime so we don't need to test it again). */
+ if (!S_ISLNK (st.st_mode))
+ break;
+
+ /* If this mtime is newer than what we had, keep the new one. */
+ ltime = FILE_TIMESTAMP_STAT_MODTIME (lpath, st);
+ if (ltime > mtime)
+ mtime = ltime;
+
+ /* Set up to check the file pointed to by this link. */
+ EINTRLOOP (llen, readlink (lpath, lbuf, GET_PATH_MAX));
+ if (llen < 0)
+ {
+ /* Eh? Just take what we have. */
+ perror_with_name ("readlink: ", lpath);
+ break;
+ }
+ lbuf[llen] = '\0';
+
+ /* If the target is fully-qualified or the source is just a
+ filename, then the new path is the target. Otherwise it's the
+ source directory plus the target. */
+ if (lbuf[0] == '/' || (p = strrchr (lpath, '/')) == NULL)
+ strcpy (lpath, lbuf);
+ else if ((p - lpath) + llen + 2 > GET_PATH_MAX)
+ /* Eh? Path too long! Again, just go with what we have. */
+ break;
+ else
+ /* Create the next step in the symlink chain. */
+ strcpy (p+1, lbuf);
+ }
+ }
+#endif
+
+ return mtime;
+}
+
+
+/* Search for a library file specified as -lLIBNAME, searching for a
+ suitable library file in the system library directories and the VPATH
+ directories. */
+
+static const char *
+library_search (const char *lib, FILE_TIMESTAMP *mtime_ptr)
+{
+ static const char *dirs[] =
+ {
+#ifndef _AMIGA
+ "/lib",
+ "/usr/lib",
+#endif
+#if defined(WINDOWS32) && !defined(LIBDIR)
+/*
+ * This is completely up to the user at product install time. Just define
+ * a placeholder.
+ */
+#define LIBDIR "."
+#endif
+ LIBDIR, /* Defined by configuration. */
+ 0
+ };
+
+ const char *file = 0;
+ char *libpatterns;
+ FILE_TIMESTAMP mtime;
+
+ /* Loop variables for the libpatterns value. */
+ char *p;
+ const char *p2;
+ unsigned int len;
+ unsigned int liblen;
+
+ /* Information about the earliest (in the vpath sequence) match. */
+ unsigned int best_vpath = 0, best_path = 0;
+
+ const char **dp;
+
+ libpatterns = xstrdup (variable_expand ("$(.LIBPATTERNS)"));
+
+ /* Skip the '-l'. */
+ lib += 2;
+ liblen = strlen (lib);
+
+ /* Loop through all the patterns in .LIBPATTERNS, and search on each one.
+ To implement the linker-compatible behavior we have to search through
+ all entries in .LIBPATTERNS and choose the "earliest" one. */
+ p2 = libpatterns;
+ while ((p = find_next_token (&p2, &len)) != 0)
+ {
+ static char *buf = NULL;
+ static unsigned int buflen = 0;
+ static int libdir_maxlen = -1;
+ static unsigned int std_dirs = 0;
+ char *libbuf = variable_expand ("");
+
+ /* Expand the pattern using LIB as a replacement. */
+ {
+ char c = p[len];
+ char *p3, *p4;
+
+ p[len] = '\0';
+ p3 = find_percent (p);
+ if (!p3)
+ {
+ /* Give a warning if there is no pattern. */
+ OS (error, NILF,
+ _(".LIBPATTERNS element '%s' is not a pattern"), p);
+ p[len] = c;
+ continue;
+ }
+ p4 = variable_buffer_output (libbuf, p, p3-p);
+ p4 = variable_buffer_output (p4, lib, liblen);
+ p4 = variable_buffer_output (p4, p3+1, len - (p3-p));
+ p[len] = c;
+ }
+
+ /* Look first for 'libNAME.a' in the current directory. */
+ mtime = name_mtime (libbuf);
+ if (mtime != NONEXISTENT_MTIME)
+ {
+ if (mtime_ptr != 0)
+ *mtime_ptr = mtime;
+ file = strcache_add (libbuf);
+ /* This by definition will have the best index, so stop now. */
+ break;
+ }
+
+ /* Now try VPATH search on that. */
+
+ {
+ unsigned int vpath_index, path_index;
+ const char* f = vpath_search (libbuf, mtime_ptr ? &mtime : NULL,
+ &vpath_index, &path_index);
+ if (f)
+ {
+ /* If we have a better match, record it. */
+ if (file == 0 ||
+ vpath_index < best_vpath ||
+ (vpath_index == best_vpath && path_index < best_path))
+ {
+ file = f;
+ best_vpath = vpath_index;
+ best_path = path_index;
+
+ if (mtime_ptr != 0)
+ *mtime_ptr = mtime;
+ }
+ }
+ }
+
+ /* Now try the standard set of directories. */
+
+ if (!buflen)
+ {
+ for (dp = dirs; *dp != 0; ++dp)
+ {
+ int l = strlen (*dp);
+ if (l > libdir_maxlen)
+ libdir_maxlen = l;
+ std_dirs++;
+ }
+ buflen = strlen (libbuf);
+ buf = xmalloc (libdir_maxlen + buflen + 2);
+ }
+ else if (buflen < strlen (libbuf))
+ {
+ buflen = strlen (libbuf);
+ buf = xrealloc (buf, libdir_maxlen + buflen + 2);
+ }
+
+ {
+ /* Use the last std_dirs index for standard directories. This
+ was it will always be greater than the VPATH index. */
+ unsigned int vpath_index = ~((unsigned int)0) - std_dirs;
+
+ for (dp = dirs; *dp != 0; ++dp)
+ {
+ sprintf (buf, "%s/%s", *dp, libbuf);
+ mtime = name_mtime (buf);
+ if (mtime != NONEXISTENT_MTIME)
+ {
+ if (file == 0 || vpath_index < best_vpath)
+ {
+ file = strcache_add (buf);
+ best_vpath = vpath_index;
+
+ if (mtime_ptr != 0)
+ *mtime_ptr = mtime;
+ }
+ }
+
+ vpath_index++;
+ }
+ }
+
+ }
+
+ free (libpatterns);
+ return file;
+}
diff --git a/remote-cstms.c b/remote-cstms.c
new file mode 100644
index 0000000..7c36b9d
--- /dev/null
+++ b/remote-cstms.c
@@ -0,0 +1,300 @@
+/* GNU Make remote job exportation interface to the Customs daemon.
+ THIS CODE IS NOT SUPPORTED BY THE GNU PROJECT.
+ Please do not send bug reports or questions about it to
+ the Make maintainers.
+
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "commands.h"
+#include "job.h"
+#include "debug.h"
+
+#include <sys/time.h>
+#include <netdb.h>
+
+#include "customs.h"
+
+char *remote_description = "Customs";
+
+/* File name of the Customs 'export' client command.
+ A full path name can be used to avoid some path-searching overhead. */
+#define EXPORT_COMMAND "/usr/local/bin/export"
+
+/* ExportPermit gotten by start_remote_job_p, and used by start_remote_job. */
+static ExportPermit permit;
+
+/* Normalized path name of the current directory. */
+static char *normalized_cwd;
+
+/* Call once at startup even if no commands are run. */
+
+void
+remote_setup (void)
+{
+}
+
+/* Called before exit. */
+
+void
+remote_cleanup (void)
+{
+}
+
+/* Return nonzero if the next job should be done remotely. */
+
+int
+start_remote_job_p (int first_p)
+{
+ static int inited = 0;
+ int status;
+ int njobs;
+
+ if (!inited)
+ {
+ /* Allow the user to turn off job exportation (useful while he is
+ debugging Customs, for example). */
+ if (getenv ("GNU_MAKE_NO_CUSTOMS") != 0)
+ {
+ inited = -1;
+ return 0;
+ }
+
+ /* For secure Customs, make is installed setuid root and
+ Customs requires a privileged source port be used. */
+ make_access ();
+
+ if (ISDB (DB_JOBS))
+ Rpc_Debug (1);
+
+ /* Ping the daemon once to see if it is there. */
+ inited = Customs_Ping () == RPC_SUCCESS ? 1 : -1;
+
+ /* Return to normal user access. */
+ user_access ();
+
+ if (starting_directory == 0)
+ /* main couldn't figure it out. */
+ inited = -1;
+ else
+ {
+ /* Normalize the current directory path name to something
+ that should work on all machines exported to. */
+
+ normalized_cwd = xmalloc (GET_PATH_MAX);
+ strcpy (normalized_cwd, starting_directory);
+ if (Customs_NormPath (normalized_cwd, GET_PATH_MAX) < 0)
+ /* Path normalization failure means using Customs
+ won't work, but it's not really an error. */
+ inited = -1;
+ }
+ }
+
+ if (inited < 0)
+ return 0;
+
+ njobs = job_slots_used;
+ if (!first_p)
+ njobs -= 1; /* correction for being called from reap_children() */
+
+ /* the first job should run locally, or, if the -l flag is given, we use
+ that as clue as to how many local jobs should be scheduled locally */
+ if (max_load_average < 0 && njobs == 0 || njobs < max_load_average)
+ return 0;
+
+ status = Customs_Host (EXPORT_SAME, &permit);
+ if (status != RPC_SUCCESS)
+ {
+ DB (DB_JOBS, (_("Customs won't export: %s\n"),
+ Rpc_ErrorMessage (status)));
+ return 0;
+ }
+
+ return !CUSTOMS_FAIL (&permit.addr);
+}
+
+/* Start a remote job running the command in ARGV, with environment from
+ ENVP. It gets standard input from STDIN_FD. On failure, return
+ nonzero. On success, return zero, and set *USED_STDIN to nonzero if it
+ will actually use STDIN_FD, zero if not, set *ID_PTR to a unique
+ identification, and set *IS_REMOTE to nonzero if the job is remote, zero
+ if it is local (meaning *ID_PTR is a process ID). */
+
+int
+start_remote_job (char **argv, char **envp, int stdin_fd,
+ int *is_remote, int *id_ptr, int *used_stdin)
+{
+ char waybill[MAX_DATA_SIZE], msg[128];
+ struct hostent *host;
+ struct timeval timeout;
+ struct sockaddr_in sin;
+ int len;
+ int retsock, retport, sock;
+ Rpc_Stat status;
+ int pid;
+
+ /* Create the return socket. */
+ retsock = Rpc_UdpCreate (True, 0);
+ if (retsock < 0)
+ {
+ O (error, NILF, "exporting: Couldn't create return socket.");
+ return 1;
+ }
+
+ /* Get the return socket's port number. */
+ len = sizeof (sin);
+ if (getsockname (retsock, (struct sockaddr *) &sin, &len) < 0)
+ {
+ (void) close (retsock);
+ perror_with_name ("exporting: ", "getsockname");
+ return 1;
+ }
+ retport = sin.sin_port;
+
+ /* Create the TCP socket for talking to the remote child. */
+ sock = Rpc_TcpCreate (False, 0);
+
+ /* Create a WayBill to give to the server. */
+ len = Customs_MakeWayBill (&permit, normalized_cwd, argv[0], argv,
+ envp, retport, waybill);
+
+ /* Modify the waybill as if the remote child had done 'child_access ()'. */
+ {
+ WayBill *wb = (WayBill *) waybill;
+ wb->ruid = wb->euid;
+ wb->rgid = wb->egid;
+ }
+
+ /* Send the request to the server, timing out in 20 seconds. */
+ timeout.tv_usec = 0;
+ timeout.tv_sec = 20;
+ sin.sin_family = AF_INET;
+ sin.sin_port = htons (Customs_Port ());
+ sin.sin_addr = permit.addr;
+ status = Rpc_Call (sock, &sin, (Rpc_Proc) CUSTOMS_IMPORT,
+ len, (Rpc_Opaque) waybill,
+ sizeof (msg), (Rpc_Opaque) msg,
+ 1, &timeout);
+
+ host = gethostbyaddr ((char *)&permit.addr, sizeof(permit.addr), AF_INET);
+
+ {
+ const char *hnm = host ? host->h_name : inet_ntoa (permit.addr);
+ size_t hlen = strlen (hnm);
+
+ if (status != RPC_SUCCESS)
+ {
+ const char *err = Rpc_ErrorMessage (status);
+ (void) close (retsock);
+ (void) close (sock);
+ error (NILF, hlen + strlen (err),
+ "exporting to %s: %s", hnm, err);
+ return 1;
+ }
+ else if (msg[0] != 'O' || msg[1] != 'k' || msg[2] != '\0')
+ {
+ (void) close (retsock);
+ (void) close (sock);
+ error (NILF, hlen + strlen (msg), "exporting to %s: %s", hnm, msg);
+ return 1;
+ }
+ else
+ {
+ error (NILF, hlen + INTSTR_LENGTH,
+ "*** exported to %s (id %u)", hnm, permit.id);
+ }
+
+ fflush (stdout);
+ fflush (stderr);
+ }
+
+ pid = vfork ();
+ if (pid < 0)
+ {
+ /* The fork failed! */
+ perror_with_name ("fork", "");
+ return 1;
+ }
+ else if (pid == 0)
+ {
+ /* Child side. Run 'export' to handle the connection. */
+ static char sock_buf[20], retsock_buf[20], id_buf[20];
+ static char *new_argv[6] =
+ { EXPORT_COMMAND, "-id", sock_buf, retsock_buf, id_buf, 0 };
+
+ /* Set up the arguments. */
+ (void) sprintf (sock_buf, "%d", sock);
+ (void) sprintf (retsock_buf, "%d", retsock);
+ (void) sprintf (id_buf, "%x", permit.id);
+
+ /* Get the right stdin. */
+ if (stdin_fd != 0)
+ (void) dup2 (stdin_fd, 0);
+
+ /* Unblock signals in the child. */
+ unblock_sigs ();
+
+ /* Run the command. */
+ exec_command (new_argv, envp);
+ }
+
+ /* Parent side. Return the 'export' process's ID. */
+ (void) close (retsock);
+ (void) close (sock);
+ *is_remote = 0;
+ *id_ptr = pid;
+ *used_stdin = 1;
+ return 0;
+}
+
+/* Get the status of a dead remote child. Block waiting for one to die
+ if BLOCK is nonzero. Set *EXIT_CODE_PTR to the exit status, *SIGNAL_PTR
+ to the termination signal or zero if it exited normally, and *COREDUMP_PTR
+ nonzero if it dumped core. Return the ID of the child that died,
+ 0 if we would have to block and !BLOCK, or < 0 if there were none. */
+
+int
+remote_status (int *exit_code_ptr, int *signal_ptr, int *coredump_ptr,
+ int block)
+{
+ return -1;
+}
+
+/* Block asynchronous notification of remote child death.
+ If this notification is done by raising the child termination
+ signal, do not block that signal. */
+void
+block_remote_children (void)
+{
+ return;
+}
+
+/* Restore asynchronous notification of remote child death.
+ If this is done by raising the child termination signal,
+ do not unblock that signal. */
+void
+unblock_remote_children (void)
+{
+ return;
+}
+
+/* Send signal SIG to child ID. Return 0 if successful, -1 if not. */
+int
+remote_kill (int id, int sig)
+{
+ return -1;
+}
diff --git a/remote-stub.c b/remote-stub.c
new file mode 100644
index 0000000..8e31a20
--- /dev/null
+++ b/remote-stub.c
@@ -0,0 +1,99 @@
+/* Template for the remote job exportation interface to GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "job.h"
+#include "commands.h"
+
+
+char *remote_description = 0;
+
+/* Call once at startup even if no commands are run. */
+
+void
+remote_setup (void)
+{
+}
+
+/* Called before exit. */
+
+void
+remote_cleanup (void)
+{
+}
+
+/* Return nonzero if the next job should be done remotely. */
+
+int
+start_remote_job_p (int first_p UNUSED)
+{
+ return 0;
+}
+
+/* Start a remote job running the command in ARGV,
+ with environment from ENVP. It gets standard input from STDIN_FD. On
+ failure, return nonzero. On success, return zero, and set *USED_STDIN
+ to nonzero if it will actually use STDIN_FD, zero if not, set *ID_PTR to
+ a unique identification, and set *IS_REMOTE to zero if the job is local,
+ nonzero if it is remote (meaning *ID_PTR is a process ID). */
+
+int
+start_remote_job (char **argv UNUSED, char **envp UNUSED, int stdin_fd UNUSED,
+ int *is_remote UNUSED, int *id_ptr UNUSED,
+ int *used_stdin UNUSED)
+{
+ return -1;
+}
+
+/* Get the status of a dead remote child. Block waiting for one to die
+ if BLOCK is nonzero. Set *EXIT_CODE_PTR to the exit status, *SIGNAL_PTR
+ to the termination signal or zero if it exited normally, and *COREDUMP_PTR
+ nonzero if it dumped core. Return the ID of the child that died,
+ 0 if we would have to block and !BLOCK, or < 0 if there were none. */
+
+int
+remote_status (int *exit_code_ptr UNUSED, int *signal_ptr UNUSED,
+ int *coredump_ptr UNUSED, int block UNUSED)
+{
+ errno = ECHILD;
+ return -1;
+}
+
+/* Block asynchronous notification of remote child death.
+ If this notification is done by raising the child termination
+ signal, do not block that signal. */
+void
+block_remote_children (void)
+{
+ return;
+}
+
+/* Restore asynchronous notification of remote child death.
+ If this is done by raising the child termination signal,
+ do not unblock that signal. */
+void
+unblock_remote_children (void)
+{
+ return;
+}
+
+/* Send signal SIG to child ID. Return 0 if successful, -1 if not. */
+int
+remote_kill (int id UNUSED, int sig UNUSED)
+{
+ return -1;
+}
diff --git a/rule.c b/rule.c
new file mode 100644
index 0000000..de8b304
--- /dev/null
+++ b/rule.c
@@ -0,0 +1,534 @@
+/* Pattern and suffix rule internals for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+#include "variable.h"
+#include "rule.h"
+
+static void freerule (struct rule *rule, struct rule *lastrule);
+
+/* Chain of all pattern rules. */
+
+struct rule *pattern_rules;
+
+/* Pointer to last rule in the chain, so we can add onto the end. */
+
+struct rule *last_pattern_rule;
+
+/* Number of rules in the chain. */
+
+unsigned int num_pattern_rules;
+
+/* Maximum number of target patterns of any pattern rule. */
+
+unsigned int max_pattern_targets;
+
+/* Maximum number of dependencies of any pattern rule. */
+
+unsigned int max_pattern_deps;
+
+/* Maximum length of the name of a dependencies of any pattern rule. */
+
+unsigned int max_pattern_dep_length;
+
+/* Pointer to structure for the file .SUFFIXES
+ whose dependencies are the suffixes to be searched. */
+
+struct file *suffix_file;
+
+/* Maximum length of a suffix. */
+
+unsigned int maxsuffix;
+
+/* Compute the maximum dependency length and maximum number of
+ dependencies of all implicit rules. Also sets the subdir
+ flag for a rule when appropriate, possibly removing the rule
+ completely when appropriate. */
+
+void
+count_implicit_rule_limits (void)
+{
+ char *name;
+ int namelen;
+ struct rule *rule;
+
+ num_pattern_rules = max_pattern_targets = max_pattern_deps = 0;
+ max_pattern_dep_length = 0;
+
+ name = 0;
+ namelen = 0;
+ rule = pattern_rules;
+ while (rule != 0)
+ {
+ unsigned int ndeps = 0;
+ struct dep *dep;
+ struct rule *next = rule->next;
+
+ ++num_pattern_rules;
+
+ if (rule->num > max_pattern_targets)
+ max_pattern_targets = rule->num;
+
+ for (dep = rule->deps; dep != 0; dep = dep->next)
+ {
+ const char *dname = dep_name (dep);
+ unsigned int len = strlen (dname);
+
+#ifdef VMS
+ const char *p = strrchr (dname, ']');
+ const char *p2;
+ if (p == 0)
+ p = strrchr (dname, ':');
+ p2 = p != 0 ? strchr (dname, '%') : 0;
+#else
+ const char *p = strrchr (dname, '/');
+ const char *p2 = p != 0 ? strchr (dname, '%') : 0;
+#endif
+ ndeps++;
+
+ if (len > max_pattern_dep_length)
+ max_pattern_dep_length = len;
+
+ if (p != 0 && p2 > p)
+ {
+ /* There is a slash before the % in the dep name.
+ Extract the directory name. */
+ if (p == dname)
+ ++p;
+ if (p - dname > namelen)
+ {
+ namelen = p - dname;
+ name = xrealloc (name, namelen + 1);
+ }
+ memcpy (name, dname, p - dname);
+ name[p - dname] = '\0';
+
+ /* In the deps of an implicit rule the 'changed' flag
+ actually indicates that the dependency is in a
+ nonexistent subdirectory. */
+
+ dep->changed = !dir_file_exists_p (name, "");
+ }
+ else
+ /* This dependency does not reside in a subdirectory. */
+ dep->changed = 0;
+ }
+
+ if (ndeps > max_pattern_deps)
+ max_pattern_deps = ndeps;
+
+ rule = next;
+ }
+
+ free (name);
+}
+
+/* Create a pattern rule from a suffix rule.
+ TARGET is the target suffix; SOURCE is the source suffix.
+ CMDS are the commands.
+ If TARGET is nil, it means the target pattern should be '(%.o)'.
+ If SOURCE is nil, it means there should be no deps. */
+
+static void
+convert_suffix_rule (const char *target, const char *source,
+ struct commands *cmds)
+{
+ const char **names, **percents;
+ struct dep *deps;
+
+ names = xmalloc (sizeof (const char *));
+ percents = xmalloc (sizeof (const char *));
+
+ if (target == 0)
+ {
+ /* Special case: TARGET being nil means we are defining a '.X.a' suffix
+ rule; the target pattern is always '(%.o)'. */
+#ifdef VMS
+ *names = strcache_add_len ("(%.obj)", 7);
+#else
+ *names = strcache_add_len ("(%.o)", 5);
+#endif
+ *percents = *names + 1;
+ }
+ else
+ {
+ /* Construct the target name. */
+ unsigned int len = strlen (target);
+ char *p = alloca (1 + len + 1);
+ p[0] = '%';
+ memcpy (p + 1, target, len + 1);
+ *names = strcache_add_len (p, len + 1);
+ *percents = *names;
+ }
+
+ if (source == 0)
+ deps = 0;
+ else
+ {
+ /* Construct the dependency name. */
+ unsigned int len = strlen (source);
+ char *p = alloca (1 + len + 1);
+ p[0] = '%';
+ memcpy (p + 1, source, len + 1);
+ deps = alloc_dep ();
+ deps->name = strcache_add_len (p, len + 1);
+ }
+
+ create_pattern_rule (names, percents, 1, 0, deps, cmds, 0);
+}
+
+/* Convert old-style suffix rules to pattern rules.
+ All rules for the suffixes on the .SUFFIXES list are converted and added to
+ the chain of pattern rules. */
+
+void
+convert_to_pattern (void)
+{
+ struct dep *d, *d2;
+ char *rulename;
+
+ /* We will compute every potential suffix rule (.x.y) from the list of
+ suffixes in the .SUFFIXES target's dependencies and see if it exists.
+ First find the longest of the suffixes. */
+
+ maxsuffix = 0;
+ for (d = suffix_file->deps; d != 0; d = d->next)
+ {
+ unsigned int l = strlen (dep_name (d));
+ if (l > maxsuffix)
+ maxsuffix = l;
+ }
+
+ /* Space to construct the suffix rule target name. */
+ rulename = alloca ((maxsuffix * 2) + 1);
+
+ for (d = suffix_file->deps; d != 0; d = d->next)
+ {
+ unsigned int slen;
+
+ /* Make a rule that is just the suffix, with no deps or commands.
+ This rule exists solely to disqualify match-anything rules. */
+ convert_suffix_rule (dep_name (d), 0, 0);
+
+ if (d->file->cmds != 0)
+ /* Record a pattern for this suffix's null-suffix rule. */
+ convert_suffix_rule ("", dep_name (d), d->file->cmds);
+
+ /* Add every other suffix to this one and see if it exists as a
+ two-suffix rule. */
+ slen = strlen (dep_name (d));
+ memcpy (rulename, dep_name (d), slen);
+
+ for (d2 = suffix_file->deps; d2 != 0; d2 = d2->next)
+ {
+ struct file *f;
+ unsigned int s2len;
+
+ s2len = strlen (dep_name (d2));
+
+ /* Can't build something from itself. */
+ if (slen == s2len && streq (dep_name (d), dep_name (d2)))
+ continue;
+
+ memcpy (rulename + slen, dep_name (d2), s2len + 1);
+ f = lookup_file (rulename);
+ if (f == 0 || f->cmds == 0)
+ continue;
+
+ if (s2len == 2 && rulename[slen] == '.' && rulename[slen + 1] == 'a')
+ /* A suffix rule '.X.a:' generates the pattern rule '(%.o): %.X'.
+ It also generates a normal '%.a: %.X' rule below. */
+ convert_suffix_rule (NULL, /* Indicates '(%.o)'. */
+ dep_name (d),
+ f->cmds);
+
+ /* The suffix rule '.X.Y:' is converted
+ to the pattern rule '%.Y: %.X'. */
+ convert_suffix_rule (dep_name (d2), dep_name (d), f->cmds);
+ }
+ }
+}
+
+
+/* Install the pattern rule RULE (whose fields have been filled in) at the end
+ of the list (so that any rules previously defined will take precedence).
+ If this rule duplicates a previous one (identical target and dependencies),
+ the old one is replaced if OVERRIDE is nonzero, otherwise this new one is
+ thrown out. When an old rule is replaced, the new one is put at the end of
+ the list. Return nonzero if RULE is used; zero if not. */
+
+static int
+new_pattern_rule (struct rule *rule, int override)
+{
+ struct rule *r, *lastrule;
+ unsigned int i, j;
+
+ rule->in_use = 0;
+ rule->terminal = 0;
+
+ rule->next = 0;
+
+ /* Search for an identical rule. */
+ lastrule = 0;
+ for (r = pattern_rules; r != 0; lastrule = r, r = r->next)
+ for (i = 0; i < rule->num; ++i)
+ {
+ for (j = 0; j < r->num; ++j)
+ if (!streq (rule->targets[i], r->targets[j]))
+ break;
+ /* If all the targets matched... */
+ if (j == r->num)
+ {
+ struct dep *d, *d2;
+ for (d = rule->deps, d2 = r->deps;
+ d != 0 && d2 != 0; d = d->next, d2 = d2->next)
+ if (!streq (dep_name (d), dep_name (d2)))
+ break;
+ if (d == 0 && d2 == 0)
+ {
+ /* All the dependencies matched. */
+ if (override)
+ {
+ /* Remove the old rule. */
+ freerule (r, lastrule);
+ /* Install the new one. */
+ if (pattern_rules == 0)
+ pattern_rules = rule;
+ else
+ last_pattern_rule->next = rule;
+ last_pattern_rule = rule;
+
+ /* We got one. Stop looking. */
+ goto matched;
+ }
+ else
+ {
+ /* The old rule stays intact. Destroy the new one. */
+ freerule (rule, (struct rule *) 0);
+ return 0;
+ }
+ }
+ }
+ }
+
+ matched:;
+
+ if (r == 0)
+ {
+ /* There was no rule to replace. */
+ if (pattern_rules == 0)
+ pattern_rules = rule;
+ else
+ last_pattern_rule->next = rule;
+ last_pattern_rule = rule;
+ }
+
+ return 1;
+}
+
+
+/* Install an implicit pattern rule based on the three text strings
+ in the structure P points to. These strings come from one of
+ the arrays of default implicit pattern rules.
+ TERMINAL specifies what the 'terminal' field of the rule should be. */
+
+void
+install_pattern_rule (struct pspec *p, int terminal)
+{
+ struct rule *r;
+ const char *ptr;
+
+ r = xmalloc (sizeof (struct rule));
+
+ r->num = 1;
+ r->targets = xmalloc (sizeof (const char *));
+ r->suffixes = xmalloc (sizeof (const char *));
+ r->lens = xmalloc (sizeof (unsigned int));
+
+ r->lens[0] = strlen (p->target);
+ r->targets[0] = p->target;
+ r->suffixes[0] = find_percent_cached (&r->targets[0]);
+ assert (r->suffixes[0] != NULL);
+ ++r->suffixes[0];
+
+ ptr = p->dep;
+ r->deps = PARSE_SIMPLE_SEQ ((char **)&ptr, struct dep);
+
+ if (new_pattern_rule (r, 0))
+ {
+ r->terminal = terminal;
+ r->cmds = xmalloc (sizeof (struct commands));
+ r->cmds->fileinfo.filenm = 0;
+ r->cmds->fileinfo.lineno = 0;
+ r->cmds->fileinfo.offset = 0;
+ /* These will all be string literals, but we malloc space for them
+ anyway because somebody might want to free them later. */
+ r->cmds->commands = xstrdup (p->commands);
+ r->cmds->command_lines = 0;
+ r->cmds->recipe_prefix = RECIPEPREFIX_DEFAULT;
+ }
+}
+
+
+/* Free all the storage used in RULE and take it out of the
+ pattern_rules chain. LASTRULE is the rule whose next pointer
+ points to RULE. */
+
+static void
+freerule (struct rule *rule, struct rule *lastrule)
+{
+ struct rule *next = rule->next;
+
+ free_dep_chain (rule->deps);
+
+ /* MSVC erroneously warns without a cast here. */
+ free ((void *)rule->targets);
+ free ((void *)rule->suffixes);
+ free (rule->lens);
+
+ /* We can't free the storage for the commands because there
+ are ways that they could be in more than one place:
+ * If the commands came from a suffix rule, they could also be in
+ the 'struct file's for other suffix rules or plain targets given
+ on the same makefile line.
+ * If two suffixes that together make a two-suffix rule were each
+ given twice in the .SUFFIXES list, and in the proper order, two
+ identical pattern rules would be created and the second one would
+ be discarded here, but both would contain the same 'struct commands'
+ pointer from the 'struct file' for the suffix rule. */
+
+ free (rule);
+
+ if (pattern_rules == rule)
+ if (lastrule != 0)
+ abort ();
+ else
+ pattern_rules = next;
+ else if (lastrule != 0)
+ lastrule->next = next;
+ if (last_pattern_rule == rule)
+ last_pattern_rule = lastrule;
+}
+
+/* Create a new pattern rule with the targets in the nil-terminated array
+ TARGETS. TARGET_PERCENTS is an array of pointers to the % in each element
+ of TARGETS. N is the number of items in the array (not counting the nil
+ element). The new rule has dependencies DEPS and commands from COMMANDS.
+ It is a terminal rule if TERMINAL is nonzero. This rule overrides
+ identical rules with different commands if OVERRIDE is nonzero.
+
+ The storage for TARGETS and its elements and TARGET_PERCENTS is used and
+ must not be freed until the rule is destroyed. */
+
+void
+create_pattern_rule (const char **targets, const char **target_percents,
+ unsigned int n, int terminal, struct dep *deps,
+ struct commands *commands, int override)
+{
+ unsigned int i;
+ struct rule *r = xmalloc (sizeof (struct rule));
+
+ r->num = n;
+ r->cmds = commands;
+ r->deps = deps;
+ r->targets = targets;
+ r->suffixes = target_percents;
+ r->lens = xmalloc (n * sizeof (unsigned int));
+
+ for (i = 0; i < n; ++i)
+ {
+ r->lens[i] = strlen (targets[i]);
+ assert (r->suffixes[i] != NULL);
+ ++r->suffixes[i];
+ }
+
+ if (new_pattern_rule (r, override))
+ r->terminal = terminal;
+}
+
+/* Print the data base of rules. */
+
+static void /* Useful to call from gdb. */
+print_rule (struct rule *r)
+{
+ unsigned int i;
+
+ for (i = 0; i < r->num; ++i)
+ {
+ fputs (r->targets[i], stdout);
+ putchar ((i + 1 == r->num) ? ':' : ' ');
+ }
+ if (r->terminal)
+ putchar (':');
+
+ print_prereqs (r->deps);
+
+ if (r->cmds != 0)
+ print_commands (r->cmds);
+}
+
+void
+print_rule_data_base (void)
+{
+ unsigned int rules, terminal;
+ struct rule *r;
+
+ puts (_("\n# Implicit Rules"));
+
+ rules = terminal = 0;
+ for (r = pattern_rules; r != 0; r = r->next)
+ {
+ ++rules;
+
+ putchar ('\n');
+ print_rule (r);
+
+ if (r->terminal)
+ ++terminal;
+ }
+
+ if (rules == 0)
+ puts (_("\n# No implicit rules."));
+ else
+ {
+ printf (_("\n# %u implicit rules, %u"), rules, terminal);
+#ifndef NO_FLOAT
+ printf (" (%.1f%%)", (double) terminal / (double) rules * 100.0);
+#else
+ {
+ int f = (terminal * 1000 + 5) / rules;
+ printf (" (%d.%d%%)", f/10, f%10);
+ }
+#endif
+ puts (_(" terminal."));
+ }
+
+ if (num_pattern_rules != rules)
+ {
+ /* This can happen if a fatal error was detected while reading the
+ makefiles and thus count_implicit_rule_limits wasn't called yet. */
+ if (num_pattern_rules != 0)
+ ONN (fatal, NILF, _("BUG: num_pattern_rules is wrong! %u != %u"),
+ num_pattern_rules, rules);
+ }
+}
diff --git a/rule.h b/rule.h
new file mode 100644
index 0000000..9156b8e
--- /dev/null
+++ b/rule.h
@@ -0,0 +1,58 @@
+/* Definitions for using pattern rules in GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Structure used for pattern (implicit) rules. */
+
+struct rule
+ {
+ struct rule *next;
+ const char **targets; /* Targets of the rule. */
+ unsigned int *lens; /* Lengths of each target. */
+ const char **suffixes; /* Suffixes (after '%') of each target. */
+ struct dep *deps; /* Dependencies of the rule. */
+ struct commands *cmds; /* Commands to execute. */
+ unsigned short num; /* Number of targets. */
+ char terminal; /* If terminal (double-colon). */
+ char in_use; /* If in use by a parent pattern_search. */
+ };
+
+/* For calling install_pattern_rule. */
+struct pspec
+ {
+ const char *target, *dep, *commands;
+ };
+
+
+extern struct rule *pattern_rules;
+extern struct rule *last_pattern_rule;
+extern unsigned int num_pattern_rules;
+
+extern unsigned int max_pattern_deps;
+extern unsigned int max_pattern_targets;
+extern unsigned int max_pattern_dep_length;
+
+extern struct file *suffix_file;
+extern unsigned int maxsuffix;
+
+
+void count_implicit_rule_limits (void);
+void convert_to_pattern (void);
+void install_pattern_rule (struct pspec *p, int terminal);
+void create_pattern_rule (const char **targets, const char **target_percents,
+ unsigned int num, int terminal, struct dep *deps,
+ struct commands *commands, int override);
+void print_rule_data_base (void);
diff --git a/signame.c b/signame.c
new file mode 100644
index 0000000..55646e9
--- /dev/null
+++ b/signame.c
@@ -0,0 +1,254 @@
+/* Convert between signal names and numbers.
+Copyright (C) 1990-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+/* If the system provides strsignal, we don't need it. */
+
+#if !HAVE_STRSIGNAL
+
+/* If the system provides sys_siglist, we'll use that.
+ Otherwise create our own.
+ */
+
+#if !HAVE_DECL_SYS_SIGLIST
+
+/* Some systems do not define NSIG in <signal.h>. */
+#ifndef NSIG
+#ifdef _NSIG
+#define NSIG _NSIG
+#else
+#define NSIG 32
+#endif
+#endif
+
+/* There is too much variation in Sys V signal numbers and names, so
+ we must initialize them at runtime. */
+
+static const char *undoc;
+
+static const char *sys_siglist[NSIG];
+
+/* Table of abbreviations for signals. Note: A given number can
+ appear more than once with different abbreviations. */
+#define SIG_TABLE_SIZE (NSIG*2)
+
+typedef struct
+ {
+ int number;
+ const char *abbrev;
+ } num_abbrev;
+
+static num_abbrev sig_table[SIG_TABLE_SIZE];
+
+/* Number of elements of sig_table used. */
+static int sig_table_nelts = 0;
+
+/* Enter signal number NUMBER into the tables with ABBREV and NAME. */
+
+static void
+init_sig (int number, const char *abbrev, const char *name)
+{
+ /* If this value is ever greater than NSIG it seems like it'd be a bug in
+ the system headers, but... better safe than sorry. We know, for
+ example, that this isn't always true on VMS. */
+
+ if (number >= 0 && number < NSIG)
+ sys_siglist[number] = name;
+
+ if (sig_table_nelts < SIG_TABLE_SIZE)
+ {
+ sig_table[sig_table_nelts].number = number;
+ sig_table[sig_table_nelts++].abbrev = abbrev;
+ }
+}
+
+static int
+signame_init (void)
+{
+ int i;
+
+ undoc = xstrdup (_("unknown signal"));
+
+ /* Initialize signal names. */
+ for (i = 0; i < NSIG; i++)
+ sys_siglist[i] = undoc;
+
+ /* Initialize signal names. */
+#if defined (SIGHUP)
+ init_sig (SIGHUP, "HUP", _("Hangup"));
+#endif
+#if defined (SIGINT)
+ init_sig (SIGINT, "INT", _("Interrupt"));
+#endif
+#if defined (SIGQUIT)
+ init_sig (SIGQUIT, "QUIT", _("Quit"));
+#endif
+#if defined (SIGILL)
+ init_sig (SIGILL, "ILL", _("Illegal Instruction"));
+#endif
+#if defined (SIGTRAP)
+ init_sig (SIGTRAP, "TRAP", _("Trace/breakpoint trap"));
+#endif
+ /* If SIGIOT == SIGABRT, we want to print it as SIGABRT because
+ SIGABRT is in ANSI and POSIX.1 and SIGIOT isn't. */
+#if defined (SIGABRT)
+ init_sig (SIGABRT, "ABRT", _("Aborted"));
+#endif
+#if defined (SIGIOT)
+ init_sig (SIGIOT, "IOT", _("IOT trap"));
+#endif
+#if defined (SIGEMT)
+ init_sig (SIGEMT, "EMT", _("EMT trap"));
+#endif
+#if defined (SIGFPE)
+ init_sig (SIGFPE, "FPE", _("Floating point exception"));
+#endif
+#if defined (SIGKILL)
+ init_sig (SIGKILL, "KILL", _("Killed"));
+#endif
+#if defined (SIGBUS)
+ init_sig (SIGBUS, "BUS", _("Bus error"));
+#endif
+#if defined (SIGSEGV)
+ init_sig (SIGSEGV, "SEGV", _("Segmentation fault"));
+#endif
+#if defined (SIGSYS)
+ init_sig (SIGSYS, "SYS", _("Bad system call"));
+#endif
+#if defined (SIGPIPE)
+ init_sig (SIGPIPE, "PIPE", _("Broken pipe"));
+#endif
+#if defined (SIGALRM)
+ init_sig (SIGALRM, "ALRM", _("Alarm clock"));
+#endif
+#if defined (SIGTERM)
+ init_sig (SIGTERM, "TERM", _("Terminated"));
+#endif
+#if defined (SIGUSR1)
+ init_sig (SIGUSR1, "USR1", _("User defined signal 1"));
+#endif
+#if defined (SIGUSR2)
+ init_sig (SIGUSR2, "USR2", _("User defined signal 2"));
+#endif
+ /* If SIGCLD == SIGCHLD, we want to print it as SIGCHLD because that
+ is what is in POSIX.1. */
+#if defined (SIGCHLD)
+ init_sig (SIGCHLD, "CHLD", _("Child exited"));
+#endif
+#if defined (SIGCLD)
+ init_sig (SIGCLD, "CLD", _("Child exited"));
+#endif
+#if defined (SIGPWR)
+ init_sig (SIGPWR, "PWR", _("Power failure"));
+#endif
+#if defined (SIGTSTP)
+ init_sig (SIGTSTP, "TSTP", _("Stopped"));
+#endif
+#if defined (SIGTTIN)
+ init_sig (SIGTTIN, "TTIN", _("Stopped (tty input)"));
+#endif
+#if defined (SIGTTOU)
+ init_sig (SIGTTOU, "TTOU", _("Stopped (tty output)"));
+#endif
+#if defined (SIGSTOP)
+ init_sig (SIGSTOP, "STOP", _("Stopped (signal)"));
+#endif
+#if defined (SIGXCPU)
+ init_sig (SIGXCPU, "XCPU", _("CPU time limit exceeded"));
+#endif
+#if defined (SIGXFSZ)
+ init_sig (SIGXFSZ, "XFSZ", _("File size limit exceeded"));
+#endif
+#if defined (SIGVTALRM)
+ init_sig (SIGVTALRM, "VTALRM", _("Virtual timer expired"));
+#endif
+#if defined (SIGPROF)
+ init_sig (SIGPROF, "PROF", _("Profiling timer expired"));
+#endif
+#if defined (SIGWINCH)
+ /* "Window size changed" might be more accurate, but even if that
+ is all that it means now, perhaps in the future it will be
+ extended to cover other kinds of window changes. */
+ init_sig (SIGWINCH, "WINCH", _("Window changed"));
+#endif
+#if defined (SIGCONT)
+ init_sig (SIGCONT, "CONT", _("Continued"));
+#endif
+#if defined (SIGURG)
+ init_sig (SIGURG, "URG", _("Urgent I/O condition"));
+#endif
+#if defined (SIGIO)
+ /* "I/O pending" has also been suggested. A disadvantage is that signal
+ only happens when the process has asked for it, not every time I/O is
+ pending. Another disadvantage is the confusion from giving it a
+ different name than under Unix. */
+ init_sig (SIGIO, "IO", _("I/O possible"));
+#endif
+#if defined (SIGWIND)
+ init_sig (SIGWIND, "WIND", _("SIGWIND"));
+#endif
+#if defined (SIGPHONE)
+ init_sig (SIGPHONE, "PHONE", _("SIGPHONE"));
+#endif
+#if defined (SIGPOLL)
+ init_sig (SIGPOLL, "POLL", _("I/O possible"));
+#endif
+#if defined (SIGLOST)
+ init_sig (SIGLOST, "LOST", _("Resource lost"));
+#endif
+#if defined (SIGDANGER)
+ init_sig (SIGDANGER, "DANGER", _("Danger signal"));
+#endif
+#if defined (SIGINFO)
+ init_sig (SIGINFO, "INFO", _("Information request"));
+#endif
+#if defined (SIGNOFP)
+ init_sig (SIGNOFP, "NOFP", _("Floating point co-processor not available"));
+#endif
+
+ return 1;
+}
+
+#endif /* HAVE_DECL_SYS_SIGLIST */
+
+
+char *
+strsignal (int sig)
+{
+ static char buf[] = "Signal 12345678901234567890";
+
+#if ! HAVE_DECL_SYS_SIGLIST
+# if HAVE_DECL__SYS_SIGLIST
+# define sys_siglist _sys_siglist
+# elif HAVE_DECL___SYS_SIGLIST
+# define sys_siglist __sys_siglist
+# else
+ static char sig_initted = 0;
+
+ if (!sig_initted)
+ sig_initted = signame_init ();
+# endif
+#endif
+
+ if (sig > 0 && sig < NSIG)
+ return (char *) sys_siglist[sig];
+
+ sprintf (buf, "Signal %d", sig);
+ return buf;
+}
+
+#endif /* HAVE_STRSIGNAL */
diff --git a/strcache.c b/strcache.c
new file mode 100644
index 0000000..6dcf2bc
--- /dev/null
+++ b/strcache.c
@@ -0,0 +1,330 @@
+/* Constant string caching for GNU Make.
+Copyright (C) 2006-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <stddef.h>
+#include <assert.h>
+
+#include "hash.h"
+
+/* A string cached here will never be freed, so we don't need to worry about
+ reference counting. We just store the string, and then remember it in a
+ hash so it can be looked up again. */
+
+typedef unsigned short int sc_buflen_t;
+
+struct strcache {
+ struct strcache *next; /* The next block of strings. Must be first! */
+ sc_buflen_t end; /* Offset to the beginning of free space. */
+ sc_buflen_t bytesfree; /* Free space left in this buffer. */
+ sc_buflen_t count; /* # of strings in this buffer (for stats). */
+ char buffer[1]; /* The buffer comes after this. */
+};
+
+/* The size (in bytes) of each cache buffer.
+ Try to pick something that will map well into the heap.
+ This must be able to be represented by a short int (<=65535). */
+#define CACHE_BUFFER_BASE (8192)
+#define CACHE_BUFFER_ALLOC(_s) ((_s) - (2 * sizeof (size_t)))
+#define CACHE_BUFFER_OFFSET (offsetof (struct strcache, buffer))
+#define CACHE_BUFFER_SIZE(_s) (CACHE_BUFFER_ALLOC(_s) - CACHE_BUFFER_OFFSET)
+#define BUFSIZE CACHE_BUFFER_SIZE (CACHE_BUFFER_BASE)
+
+static struct strcache *strcache = NULL;
+static struct strcache *fullcache = NULL;
+
+static unsigned long total_buffers = 0;
+static unsigned long total_strings = 0;
+static unsigned long total_size = 0;
+
+/* Add a new buffer to the cache. Add it at the front to reduce search time.
+ This can also increase the overhead, since it's less likely that older
+ buffers will be filled in. However, GNU make has so many smaller strings
+ that this doesn't seem to be much of an issue in practice.
+ */
+static struct strcache *
+new_cache (struct strcache **head, sc_buflen_t buflen)
+{
+ struct strcache *new = xmalloc (buflen + CACHE_BUFFER_OFFSET);
+ new->end = 0;
+ new->count = 0;
+ new->bytesfree = buflen;
+
+ new->next = *head;
+ *head = new;
+
+ ++total_buffers;
+ return new;
+}
+
+static const char *
+copy_string (struct strcache *sp, const char *str, unsigned int len)
+{
+ /* Add the string to this cache. */
+ char *res = &sp->buffer[sp->end];
+
+ memmove (res, str, len);
+ res[len++] = '\0';
+ sp->end += len;
+ sp->bytesfree -= len;
+ ++sp->count;
+
+ return res;
+}
+
+static const char *
+add_string (const char *str, unsigned int len)
+{
+ const char *res;
+ struct strcache *sp;
+ struct strcache **spp = &strcache;
+ /* We need space for the nul char. */
+ unsigned int sz = len + 1;
+
+ ++total_strings;
+ total_size += sz;
+
+ /* If the string we want is too large to fit into a single buffer, then
+ no existing cache is large enough. Add it directly to the fullcache. */
+ if (sz > BUFSIZE)
+ {
+ sp = new_cache (&fullcache, sz);
+ return copy_string (sp, str, len);
+ }
+
+ /* Find the first cache with enough free space. */
+ for (; *spp != NULL; spp = &(*spp)->next)
+ if ((*spp)->bytesfree > sz)
+ break;
+ sp = *spp;
+
+ /* If nothing is big enough, make a new cache at the front. */
+ if (sp == NULL)
+ {
+ sp = new_cache (&strcache, BUFSIZE);
+ spp = &strcache;
+ }
+
+ /* Add the string to this cache. */
+ res = copy_string (sp, str, len);
+
+ /* If the amount free in this cache is less than the average string size,
+ consider it full and move it to the full list. */
+ if (total_strings > 20 && sp->bytesfree < (total_size / total_strings) + 1)
+ {
+ *spp = sp->next;
+ sp->next = fullcache;
+ fullcache = sp;
+ }
+
+ return res;
+}
+
+/* For strings too large for the strcache, we just save them in a list. */
+struct hugestring {
+ struct hugestring *next; /* The next string. */
+ char buffer[1]; /* The string. */
+};
+
+static struct hugestring *hugestrings = NULL;
+
+static const char *
+add_hugestring (const char *str, unsigned int len)
+{
+ struct hugestring *new = xmalloc (sizeof (struct hugestring) + len);
+ memcpy (new->buffer, str, len);
+ new->buffer[len] = '\0';
+
+ new->next = hugestrings;
+ hugestrings = new;
+
+ return new->buffer;
+}
+
+/* Hash table of strings in the cache. */
+
+static unsigned long
+str_hash_1 (const void *key)
+{
+ return_ISTRING_HASH_1 ((const char *) key);
+}
+
+static unsigned long
+str_hash_2 (const void *key)
+{
+ return_ISTRING_HASH_2 ((const char *) key);
+}
+
+static int
+str_hash_cmp (const void *x, const void *y)
+{
+ return_ISTRING_COMPARE ((const char *) x, (const char *) y);
+}
+
+static struct hash_table strings;
+static unsigned long total_adds = 0;
+
+static const char *
+add_hash (const char *str, unsigned int len)
+{
+ char *const *slot;
+ const char *key;
+
+ /* If it's too large for the string cache, just copy it.
+ We don't bother trying to match these. */
+ if (len > USHRT_MAX - 1)
+ return add_hugestring (str, len);
+
+ /* Look up the string in the hash. If it's there, return it. */
+ slot = (char *const *) hash_find_slot (&strings, str);
+ key = *slot;
+
+ /* Count the total number of add operations we performed. */
+ ++total_adds;
+
+ if (!HASH_VACANT (key))
+ return key;
+
+ /* Not there yet so add it to a buffer, then into the hash table. */
+ key = add_string (str, len);
+ hash_insert_at (&strings, key, slot);
+ return key;
+}
+
+/* Returns true if the string is in the cache; false if not. */
+int
+strcache_iscached (const char *str)
+{
+ struct strcache *sp;
+
+ for (sp = strcache; sp != 0; sp = sp->next)
+ if (str >= sp->buffer && str < sp->buffer + sp->end)
+ return 1;
+ for (sp = fullcache; sp != 0; sp = sp->next)
+ if (str >= sp->buffer && str < sp->buffer + sp->end)
+ return 1;
+
+ {
+ struct hugestring *hp;
+ for (hp = hugestrings; hp != 0; hp = hp->next)
+ if (str == hp->buffer)
+ return 1;
+ }
+
+ return 0;
+}
+
+/* If the string is already in the cache, return a pointer to the cached
+ version. If not, add it then return a pointer to the cached version.
+ Note we do NOT take control of the string passed in. */
+const char *
+strcache_add (const char *str)
+{
+ return add_hash (str, strlen (str));
+}
+
+const char *
+strcache_add_len (const char *str, unsigned int len)
+{
+ /* If we're not given a nul-terminated string we have to create one, because
+ the hashing functions expect it. */
+ if (str[len] != '\0')
+ {
+ char *key = alloca (len + 1);
+ memcpy (key, str, len);
+ key[len] = '\0';
+ str = key;
+ }
+
+ return add_hash (str, len);
+}
+
+void
+strcache_init (void)
+{
+ hash_init (&strings, 8000, str_hash_1, str_hash_2, str_hash_cmp);
+}
+
+
+/* Generate some stats output. */
+
+void
+strcache_print_stats (const char *prefix)
+{
+ const struct strcache *sp;
+ unsigned long numbuffs = 0, fullbuffs = 0;
+ unsigned long totfree = 0, maxfree = 0, minfree = BUFSIZE;
+
+ if (! strcache)
+ {
+ printf (_("\n%s No strcache buffers\n"), prefix);
+ return;
+ }
+
+ /* Count the first buffer separately since it's not full. */
+ for (sp = strcache->next; sp != NULL; sp = sp->next)
+ {
+ sc_buflen_t bf = sp->bytesfree;
+
+ totfree += bf;
+ maxfree = (bf > maxfree ? bf : maxfree);
+ minfree = (bf < minfree ? bf : minfree);
+
+ ++numbuffs;
+ }
+ for (sp = fullcache; sp != NULL; sp = sp->next)
+ {
+ sc_buflen_t bf = sp->bytesfree;
+
+ totfree += bf;
+ maxfree = (bf > maxfree ? bf : maxfree);
+ minfree = (bf < minfree ? bf : minfree);
+
+ ++numbuffs;
+ ++fullbuffs;
+ }
+
+ /* Make sure we didn't lose any buffers. */
+ assert (total_buffers == numbuffs + 1);
+
+ printf (_("\n%s strcache buffers: %lu (%lu) / strings = %lu / storage = %lu B / avg = %lu B\n"),
+ prefix, numbuffs + 1, fullbuffs, total_strings, total_size,
+ (total_size / total_strings));
+
+ printf (_("%s current buf: size = %hu B / used = %hu B / count = %hu / avg = %hu B\n"),
+ prefix, (sc_buflen_t)BUFSIZE, strcache->end, strcache->count,
+ (strcache->end / strcache->count));
+
+ if (numbuffs)
+ {
+ /* Show information about non-current buffers. */
+ unsigned long sz = total_size - strcache->end;
+ unsigned long cnt = total_strings - strcache->count;
+ sc_buflen_t avgfree = totfree / numbuffs;
+
+ printf (_("%s other used: total = %lu B / count = %lu / avg = %lu B\n"),
+ prefix, sz, cnt, sz / cnt);
+
+ printf (_("%s other free: total = %lu B / max = %lu B / min = %lu B / avg = %hu B\n"),
+ prefix, totfree, maxfree, minfree, avgfree);
+ }
+
+ printf (_("\n%s strcache performance: lookups = %lu / hit rate = %lu%%\n"),
+ prefix, total_adds, (long unsigned)(100.0 * (total_adds - total_strings) / total_adds));
+ fputs (_("# hash-table stats:\n# "), stdout);
+ hash_print_stats (&strings, stdout);
+}
diff --git a/subproc.bat b/subproc.bat
new file mode 100644
index 0000000..685ed9d
--- /dev/null
+++ b/subproc.bat
@@ -0,0 +1,24 @@
+@echo off
+rem Copyright (C) 1996-2016 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
+
+cd w32\subproc
+set MAKE=%2
+set MAKEFILE=%1
+if x%2 == x set MAKE=nmake
+%MAKE% /f %MAKEFILE%
+if ERRORLEVEL 1 exit /B
+cd ..\..
diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
index 0000000..a30a689
--- /dev/null
+++ b/tests/.gitignore
@@ -0,0 +1,2 @@
+config-flags.pm
+work
diff --git a/tests/COPYING b/tests/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/tests/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
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+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
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+
+ How to Apply These Terms to Your New Programs
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+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
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+ (at your option) any later version.
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
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+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
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+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/tests/ChangeLog.1 b/tests/ChangeLog.1
new file mode 100644
index 0000000..684af03
--- /dev/null
+++ b/tests/ChangeLog.1
@@ -0,0 +1,1429 @@
+2013-10-09 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/patspecific_vars: Typo fixes.
+
+2013-10-05 Paul Smith <psmith@gnu.org>
+
+ * test_driver.pl (run_all_tests): Rewrite to be more clear.
+ * scripts/features/jobserver: Avoid using $ENV{HOME} as it doesn't
+ exist everywhere.
+ * scripts/features/default_names: End with 1;
+
+ * scripts/features/loadapi: Use new calling signatures. Verify
+ the NOEXPAND flag works. Test with all valid function name
+ characters.
+
+2013-09-29 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/SHELL: Solaris /bin/sh can't handle options in
+ multiple words; skip that test.
+ * scripts/targets/ONESHELL: Ditto.
+
+ * scripts/variables/GNUMAKEFLAGS: Verify that GNUMAKEFLAGS is
+ cleared and options are not duplicated.
+
+2013-09-23 Paul Smith <psmith@gnu.org>
+
+ * scripts/options/print-directory: Rename dash-w to
+ print-directory to avoid conflicts with dash-W on case-insensitive
+ filesystems.
+
+2013-09-22 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/se_implicit: Verify that order-only tokens
+ inside second expansion are parsed correctly.
+ Test for Savannah bug #31155.
+
+ * run_make_tests.pl (set_more_defaults): If we can't find
+ gnumake.h based on the make program we might be running from a
+ remote build directory. Parse the Makefile for the right path.
+
+ Fix some test issues on Solaris.
+
+ * scripts/features/archives: Determine what output ar gives when
+ adding and replacing objects and compare with that.
+ * scripts/features/escape: Solaris /bin/sh doesn't properly handle
+ backslashes inside single quotes, so don't rely on it.
+ * scripts/features/output-sync: false(1) gives different exit
+ codes on different systems; use "exit 1" instead.
+ * scripts/features/parallelism: Increase the timeout for slower systems.
+
+2013-09-21 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/archives: Some versions of ar (MacOSX) generate
+ different output when creating archives. Run it and verify the
+ real output.
+ * scripts/features/default_names: MacOSX is, like Windows,
+ case-preserving / case-insensitive. Redo the test to avoid
+ checking for "UNIX".
+ * test_driver.pl (attach_default_output): Don't dup stdout into
+ stderr. Reported by Denis Excoffier <bug-tar@Denis-Excoffier.org>
+
+ * scripts/features/se_explicit: Fix a test that behaves
+ differently with/without archive capability enabled.
+ * scripts/features/output-sync: Don't test output-sync if it's not
+ enabled. We also skip it if parallelism is not enabled, although
+ strictly speaking some of the output-sync tests are valid even
+ without parallelism.
+ * scripts/features/jobserver: Move some tests that require the
+ jobserver from features/parallelism to a separate suite. Only run
+ this if jobserver mode is enabled.
+
+ * scripts/features/output-sync: Test shell functions writing to
+ stderr in recipes: ensure it's captured via output-sync. Test
+ output generated while reading makefiles and make sure it's
+ captured via output-sync. Make sure that fatal errors dump the
+ output so it's not lost.
+
+ * scripts/options/dash-w: Add a test for -w flag.
+
+2013-09-15 Paul Smith <psmith@gnu.org>
+
+ * scripts/misc/fopen-fail: Check for failure on infinite recursion.
+ * run_make_tests.pl (run_make_test): Allow the answer string to be
+ undef, which means that we shouldn't compare it at all. Only the
+ exit code matters in this case.
+ * test_driver.pl (compare_output): Ditto.
+ Test for Savannah bug #27374.
+
+ * scripts/features/parallelism: Test broken jobserver on recursion.
+ Test for Savannah bug #39934.
+
+ * scripts/options/eval: Verify --eval during restart.
+ Test for Savannah bug #39203.
+
+2013-09-14 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync: Verify -Orecurse properly.
+
+2013-09-12 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync: Modify for output sync behavior.
+ * scripts/variables/MAKE_RESTARTS: Ditto.
+ * scripts/variables/MAKEFLAGS: Remove mode for --trace.
+ * scripts/variables/GNUMAKEFLAGS: Ditto.
+
+2013-07-22 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/rule_glob: Add tests for wildcards in rules.
+ Test for Savannah bug #39310.
+
+2013-07-09 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/se_implicit: Add a test for SE rules depending
+ on other SE rules to be built.
+
+2013-05-26 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/archives: Test for Savannah bug #38442.
+
+ * scripts/misc/bs-nl: Test for Savannah bug #39035.
+ Add a test for Savannah bug #38945.
+
+2013-05-22 Paul Smith <psmith@gnu.org>
+
+ * scripts/options/dash-n: Fix results after MAKEFLAGS fixes.
+ * scripts/variables/MAKEFLAGS: Ditto.
+ * scripts/variables/GNUMAKEFLAGS: Ditto.
+
+2013-05-14 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/loadapi: Add plugin_is_GPL_compatible symbol.
+ * scripts/features/load: Ditto.
+
+2013-05-13 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync (output_sync_set): Update for new
+ --trace behavior.
+
+2013-05-05 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync (output_sync_set): Remove
+ extraneous enter/leave lines, which are no longer printed.
+ Add tests for syncing command line printing.
+ (output_sync_set): Rename options: "job"->"line"; "make"->"recurse"
+
+2013-05-04 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/loadapi: Use the new alloc functions.
+
+ * scripts/features/output-sync (output_sync_set): New test for
+ ordered recursive output for -Ojob / -Otarget.
+
+2013-05-03 Eli Zaretskii <eliz@gnu.org>
+
+ * scripts/features/load: Fix signatures of testload_gmk_setup and
+ explicit_setup, to bring them in line with the documentation.
+
+2013-04-28 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync (output_sync_set): Add tests for
+ the per-job syntax mode.
+ (output_sync_set): Test improved error message location.
+
+2013-04-15 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync (output_sync_set): New arg syntax.
+
+2013-04-14 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/output-sync: Rewrite to be more reliable.
+
+ * test_driver.pl (_run_command): Don't set SIGALRM until after we
+ start the child. Print errors to the top-level output, which will
+ be stderr.
+ (attach_default_output): Use a list of file handles as the stack.
+ (detach_default_output): Ditto.
+
+ * scripts/features/output-sync: Add a test for output-sync.
+
+2013-02-25 Paul Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (valid_option): Support the -srcdir flag.
+ (set_more_defaults): Set up $srcdir if it's not set yet.
+
+ * scripts/functions/guile: Verify gmk-eval doesn't expand twice.
+ * scripts/features/load: Rework to test just the load capability.
+ * scripts/features/loadapi: New set of tests for the load API.
+
+2013-01-19 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/load: Test loaded files with and without "./"
+ prefix. Add tests for automatically rebuilding loaded files if
+ they are out of date or non-existent.
+
+2013-01-13 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/archives: Add a check targets that have parens,
+ but are not archives. See Savannah bug #37878.
+
+ * scripts/options/dash-n: Verify -n is preserved after recursive /
+ re-exec. See Savannah bug #38051.
+
+2013-01-12 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Change rule so it doesn't depend
+ on invocation order, etc.
+
+2012-10-29 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/load: New test suite for the "load" directive.
+
+2012-09-09 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/file: Get errors in the C locale, not the
+ current locale. Fixes Savannah bug #35764.
+
+ * scripts/features/escape: Check that backslashes before
+ non-special characters are not removed.
+
+ * scripts/features/utf8: New test for UTF-8 support.
+ See Savannah bug #36529.
+
+ * scripts/targets/POSIX: Add tests for default macro values as
+ specified by IEEE Std 1003.1-2008. See Savannah bug #37069.
+
+2012-03-04 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/se_explicit: Test $(x:%=%) format in secondary
+ expansion prerequisite lists. See Savannah bug #16545.
+
+ * scripts/features/escape: Test escaped ":" in prerequisite lists.
+ See Savannah bug #12126.
+
+ * scripts/variables/private: Test appending private variables in
+ pattern-specific target rules. See Savannah bug #35468.
+
+2012-03-03 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/SHELL: Ensure .SHELLFLAGS works with options
+ separated by whitespace.
+
+ * scripts/targets/ONESHELL: Try .ONESHELL in combination with
+ whitespace-separated options in .SHELLFLAGS. See Savannah bug #35397.
+
+ * scripts/functions/filter-out: Add filter tests and test escape
+ operations. See Savannah bug #35410.
+
+ * guile.supp: Suppress valgrind errors from Guile
+ * run_make_tests.pl: Use the Guile suppression file.
+
+ * scripts/misc/bs-nl: Check for POSIX and non-POSIX
+ backslash/newline handling. Addresses Savannah bug #16670.
+
+2012-01-29 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/flavors: Add tests for ::=
+ * scripts/variables/define: Ditto
+
+ * scripts/functions/file: Test the new $(file ...) function.
+
+2012-01-12 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/guile: New regression tests for Guile support.
+
+2011-12-10 Paul Smith <psmith@gnu.org>
+
+ * scripts/targets/SECONDARY: Add prereq statements to ensure rules
+ are printed in the right order for test #9
+
+2011-11-14 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/double_colon: Check double-colon with escaped
+ filenames. See Savannah bug #33399.
+
+2011-09-18 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: On re-exec make sure we preserve
+ the value of MAKEFLAGS when necessary. See Savannah bug #33873.
+
+ * scripts/features/vpath3: Verify handling of -lfoo libraries
+ found via vpath vs. the standard directory search.
+ See Savannah bug #32511.
+
+2011-09-12 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/call: Verify that using export in a $(call ...)
+ context creates a global variable. See Savannah bug #32498.
+
+2011-09-02 Paul Smith <psmith@gnu.org>
+
+ * scripts/options/dash-n: Verify that in "-n -t", the -n takes
+ priority. Patch from Michael Witten <mfwitten@gmail.com>.
+
+2011-08-29 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/varnesting: Test resetting of variables while
+ expanding them. See Savannah patch #7534
+
+2011-06-12 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/archives: Check archives with whitespace at the
+ beginning, end, and extra in the middle.
+ Another test for Savannah bug #30612.
+
+2011-05-07 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/private: Ensure we skip private variables when
+ appending. Test for Savannah bug #32872.
+
+ * scripts/functions/wildcard: Verify wildcard used to test for
+ file existence/non-existence.
+
+2011-05-02 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/sort: Add a test for Savannah bug #33125.
+
+2011-04-17 David A. Wheeler <dwheeler@dwheeler.com>
+
+ * scripts/features/shell_assignment: Regression for "!=" feature
+
+2010-11-06 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Fix known-good output for BS/NL changes.
+ * scripts/functions/call: Ditto.
+ * scripts/variables/special: Ditto.
+
+ * scripts/misc/bs-nl: New test suite for backslash/newline testing.
+
+2010-08-29 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/errors: Add new error message to output text.
+ * scripts/variables/SHELL: Ditto.
+ * scripts/targets/POSIX: Ditto.
+ * scripts/options/dash-k: Ditto.
+ * scripts/features/vpathplus: Ditto.
+ * scripts/features/patternrules: Ditto.
+ * scripts/features/parallelism: Ditto.
+
+2010-08-13 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/archives: New regression tests for archive
+ support. Test for fix to Savannah bug #30612.
+
+ * run_make_tests.pl (set_more_defaults): Set a %FEATURES hash to
+ the features available in $(.FEATURES).
+
+2010-08-10 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/reinvoke: Ensure command line variable settings
+ are preserved across make re-exec. Tests Savannah bug #30723.
+
+2010-07-28 Paul Smith <psmith@gnu.org>
+
+ * scripts/targets/POSIX: Compatibility issues with Solaris (and
+ Tru64?); "false" returns different exit codes, and set -x shows
+ output with extra whitespace. Run the commands by hand first to
+ find out what the real shell would do, then compare what make does.
+ * scripts/variables/SHELL: Ditto.
+
+2010-07-12 Paul Smith <psmith@gnu.org>
+
+ * test_driver.pl: Add a new $perl_name containing the path to Perl.
+ * run_make_tests.pl (run_make_test): Replace the special string
+ #PERL# in a makefile etc. with the path the Perl executable so
+ makefiles can use it.
+
+ * scripts/targets/ONESHELL: Add a new set of regression tests for
+ the .ONESHELL feature.
+
+2010-07-06 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/SHELL: Test the new .SHELLFLAGS variable.
+
+ * scripts/targets/POSIX: New file. Test the .POSIX special target.
+ Verify that enabling .POSIX changes the shell flags to set -e.
+
+2010-07-01 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/recursion: Add a space to separate command-line
+ args. Fixes Savannah bug #29968.
+
+2009-11-12 Boris Kolpackov <boris@codesynthesis.com>
+
+ * scripts/features/vpath3: Test for the new library search
+ behavior.
+
+2009-10-06 Boris Kolpackov <boris@codesynthesis.com>
+
+ * scripts/features/se_explicit: Enable the test for now fixed
+ Savannah bug 25780.
+
+2009-10-06 Boris Kolpackov <boris@codesynthesis.com>
+
+ * scripts/variables/undefine: Tests for the new undefine feature.
+
+2009-10-03 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Test for open Savannah bug #26846.
+
+ * scripts/variables/MAKE: Rewrite for new run_make_test() format.
+
+ * scripts/variables/MAKEFLAGS: Created.
+ Add test for Savannah bug #2216 (still open).
+
+ * scripts/features/include: Test for Savannah bug #102 (still open).
+
+2009-09-30 Boris Kolpackov <boris@codesynthesis.com>
+
+ * scripts/features/include: Add diagnostics issuing tests for
+ cases where targets have been updated and failed with the
+ dontcare flag. Savannah bugs #15110, #25493, #12686, #17740.
+
+2009-09-28 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/shell: Add regression test for Savannah bug
+ #20513 (still open).
+
+ * scripts/features/se_explicit: Add regression tests for Savannah
+ bug #25780 (still open).
+
+ * run_make_tests.pl (valid_option): Add a new flag, -all([-_]?tests)?
+ that runs tests we know will fail. This allows us to add
+ regression tests to the test suite for bugs that haven't been
+ fixed yet.
+
+2009-09-28 Boris Kolpackov <boris@codesynthesis.com>
+
+ * scripts/features/patspecific_vars: Add a test for the shortest
+ stem first order.
+
+ * scripts/features/patternrules: Add a test for the shortest stem
+ first order.
+
+2009-09-24 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/se_implicit: Add a test for order-only
+ secondary expansion prerequisites.
+
+2009-09-23 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/patternrules: Test that we can remove pattern
+ rules, both single and multiple prerequisites. Savannah bug #18622.
+
+ * scripts/features/echoing: Rework for run_make_test().
+
+2009-06-14 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/vpath: Verify we don't get bogus circular
+ dependency warnings if we choose a different file via vpath during
+ update. Savannah bug #13529.
+
+2009-06-13 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/MAKEFILES: Verify that MAKEFILES included
+ files (and files included by them) don't set the default goal.
+ Savannah bug #13401.
+
+ * scripts/functions/wildcard: Test that wildcards with
+ non-existent glob matchers return empty.
+
+2009-06-09 Paul Smith <psmith@gnu.org>
+
+ * scripts/options/dash-B: Test the $? works correctly with -B.
+ Savannah bug #17825.
+
+ * scripts/features/patternrules: Test that dependencies of
+ "also_make" targets are created properly. Savannah bug #19108.
+
+ * test_driver.pl (compare_output): Create a "run" file for failed
+ tests containing the command that was run.
+ (get_runfile): New function.
+
+ * run_make_tests.pl (valid_option): Enhanced support for valgrind:
+ allow memcheck and massif tools.
+
+ * scripts/features/patternrules: Have to comment out a line in the
+ first test due to backing out a change that broke the implicit
+ rule search algorithm. Savannah bug #17752.
+ * scripts/misc/general4: Remove a test that is redundant with
+ patternrules.
+
+ * scripts/features/parallelism: Add a test for re-exec with
+ jobserver master override. Savannah bug #18124.
+
+2009-06-08 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Add a test for continued target
+ vars after a semicolon. Savannah bug #17521.
+
+2009-06-07 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/se_explicit: Make sure we catch defining
+ prereqs during snap_deps(). Savannah bug #24622.
+
+ * scripts/variables/automatic: Check prereq ordering when the
+ target with the recipe has no prereqs. Savannah bug #21198.
+
+ * scripts/variables/LIBPATTERNS: Add a new set of test for
+ $(.LIBPATTERNS) (previously untested!)
+
+2009-06-04 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/SHELL: The export target-specific SHELL test
+ has an incorrect known-good-value.
+
+ * scripts/misc/general4: Check for whitespace (ffeed, vtab, etc.)
+
+ * scripts/features/se_explicit: Add tests for Savannah bug #24588.
+
+2009-05-31 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/DEFAULT_GOAL: Add tests for Savannah bug #25697.
+
+ * scripts/features/targetvars: Add tests of overrides for Savannah
+ bug #26207.
+ * scripts/features/patspecific_vars: Ditto.
+
+ * scripts/features/patternrules: Add a test for Savannah bug #26593.
+
+2009-05-30 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/flavors: Update with new variable flavor tests.
+ * scripts/variables/define: Create a new set of tests for
+ define/endef and move those aspects of the flavors suite here.
+
+2009-05-25 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Ditto.
+
+ * scripts/features/export: Test new variable parsing abilities.
+
+2009-02-23 Ramon Garcia <ramon.garcia.f@gmail.com>
+
+ * scripts/variables/private: Create a new suite of tests for 'private'.
+
+2007-11-04 Paul Smith <psmith@gnu.org>
+
+ * scripts/functions/eval: Update error message for command -> recipe.
+
+ * test_driver.pl (compare_output): Allow the answer to be a regex,
+ if surrounded by '/'.
+ * scripts/misc/close_stdout: Use a regex for the answer, since
+ sometimes the error will have a description and sometimes it won't.
+
+2007-09-10 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/special: Add tests for .RECIPEPREFIX variable.
+
+2007-08-15 Paul Smith <psmith@gnu.org>
+
+ These test cases were contributed by
+ Icarus Sparry <savannah@icarus.freeuk.com> and J. David Bryan for
+ Savannah bugs #3330 and #15919.
+
+ * scripts/targets/SECONDARY: Add tests for Savannah bugs 3330 and
+ 15919.
+
+ * scripts/features/parallelism: Add tests for wrong answer/hang
+ combining INTERMEDIATE, order-only prereqs, and parallelism.
+ See Savannah bugs 3330 and 15919.
+
+2007-07-13 Paul Smith <psmith@gnu.org>
+
+ Install a timeout so tests can never loop infinitely.
+ Original idea and patch for a single-test version provided by
+ Icarus Sparry <savannah@icarus.freeuk.com>
+
+ * test_driver.pl (_run_command): New function: this is called by
+ other functions to actually run a command. Before we run it,
+ install a SIGALRM handler and set up a timer to go off in the
+ future (default is 5s; this can be overridden by individual tests).
+ (run_command): Call it.
+ (run_command_with_output): Call it.
+
+ * run_make_tests.pl (run_make_with_options): Override the default
+ timeout if the caller requests it.
+ (run_make_test): Pass any timeout override to run_make_with_options.
+
+ * scripts/features/parallelism: Increase the timeout for long tests.
+ * scripts/options/dash-l: Ditto.
+
+2006-10-01 Paul Smith <psmith@paulandlesley.org>
+
+ * run_make_tests.pl (set_more_defaults): Remove setting of LANG in
+ ENV here. This doesn't always work.
+ * test_driver.pl (toplevel): Set LC_ALL to 'C' in the make
+ environment. Fixes Savannah bug #16698.
+
+2006-09-30 Paul Smith <psmith@paulandlesley.org>
+
+ * scripts/variables/automatic: Add back the test for bug #8154.
+
+2006-04-01 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/realpath: Don't run tests with multiple
+ initial slashes on Windows: those paths mean something different.
+
+2006-03-19 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Test that the jobserver is
+ properly managed when we have to re-exec the master instance of
+ make.
+
+2006-03-17 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/statipattrules: Add tests for bug #16053.
+
+2006-03-09 Paul Smith <psmith@gnu.org>
+
+ * scripts/features/escape: Use "pre:" not "p:" to avoid conflicts
+ with DOS drive letters. Fixes Savannah bug #15947.
+
+ * test_driver.pl (run_each_test): Set the status properly even
+ when a test fails to execute. Fixes Savannah bug #15942.
+
+ * scripts/functions/foreach: Use a different environment variable
+ other than PATH to avoid differences with Windows platforms.
+ Fixes Savannah bug #15938.
+
+2006-03-05 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (set_more_defaults): Add CYGWIN_NT as a port
+ type W32. Fixed Savannah bug #15937.
+
+ * scripts/features/default_names: Don't call error() when the test
+ fails. Fixes Savannah bug #15941.
+
+2006-02-17 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Test a complex construction which
+ guarantees that we have to merge variable lists of different
+ sizes. Tests for Savannah bug #15757.
+
+2006-02-15 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/error: Make sure filename/lineno information
+ is related to where the error is expanded, not where it's set.
+ * scripts/functions/warning: Ditto.
+ * scripts/functions/foreach: Check for different error conditions.
+ * scripts/functions/word: Ditto.
+ * scripts/variables/negative: Test some variable reference failure
+ conditions.
+ * scripts/options/warn-undefined-variables: Test the
+ --warn-undefined-variables flag.
+
+2006-02-09 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (set_more_defaults): Update valgrind support
+ for newer versions.
+ * test_driver.pl (toplevel): Skip all hidden files/directories (ones
+ beginning with ".").
+
+ * scripts/functions/andor: Tests for $(and ...) and $(or ...)
+ functions.
+
+2006-02-08 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/parallelism: Add a test for bug #15641.
+
+2006-02-06 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-W: Add a test for bug #15341.
+
+2006-01-03 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/automatic: Add a test for bug #8154.
+
+ * README: Update to reflect the current state of the test suite.
+
+2005-12-12 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism, scripts/functions/wildcard,
+ scripts/targets/FORCE, scripts/targets/PHONY,
+ scripts/targets/SILENT: Use the default setting for
+ $delete_command. Fixes bug #15085.
+
+ * run_make_tests.pl (get_this_pwd) [VMS]: Use -no_ask with delete_file.
+
+2005-12-11 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/misc/general4: Test implicit rules with '$' in the
+ prereq list & prereq patterns.
+ * scripts/features/se_implicit: Add in .SECONDEXPANSION settings.
+
+2005-12-09 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/patternrules: Add a test for bug #13022.
+
+2005-12-07 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/double_colon: Add a test for bug #14334.
+
+2005-11-17 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/functions/flavor: Add a test for the flavor function.
+
+2005-11-14 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/variables/INCLUDE_DIRS: Add a test for the .INCLUDE_DIRS
+ special variable.
+
+2005-10-24 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/misc/general4: Test '$$' in prerequisites list.
+ * scripts/features/statipattrules: Rewrite to use run_make_test().
+ Add various static pattern info.
+ * scripts/features/se_statpat: Enable .SECONDEXPANSION target.
+ * scripts/features/se_explicit: Add tests for handling '$$' in
+ prerequisite lists with and without setting .SECONDEXPANSION.
+ * scripts/features/order_only: Convert to run_make_test().
+ * run_make_tests.pl (set_more_defaults): If we can't get the value
+ of $(MAKE) from make, then fatal immediately.
+
+2005-08-31 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (get_this_pwd): Require the POSIX module (in
+ an eval to trap errors) and if it exists, use POSIX::getcwd to
+ find the working directory. If it doesn't exist, go back to the
+ previous methods. This tries to be more accurate on Windows
+ systems.
+
+2005-08-29 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/abspath: Add some text to the error messages
+ to get a better idea of what's wrong. Make warnings instead of
+ errors.
+
+ * scripts/features/patspecific_vars: Don't use "test", which is
+ UNIX specific. Print the values and let the test script match
+ them.
+
+2005-08-25 Paul Smith <psmith@gnu.org>
+
+ * scripts/variables/SHELL: Use a /./ prefix instead of //: the
+ former works better with non-UNIX environments. Fixes Savannah
+ bug #14129.
+
+2005-08-13 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/functions/wildcard: Wrap calls to $(wildcard) with
+ $(sort) so that the resulting order is no longer filesystem-
+ dependent.
+
+2005-08-10 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/statipattrules: Add a test for Savannah bug #13881.
+
+2005-08-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Add a test for a bug reported by
+ Michael Matz (matz@suse.de) in which make exits without waiting
+ for all its children in some situations during parallel builds.
+
+2005-07-08 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl: Reset the environment to a clean value every
+ time before we invoke make. I'm suspicious that the environment
+ isn't handled the same way in Windows as it is in UNIX, and some
+ variables are leaking out beyond the tests they are intended for.
+ Create an %extraENV hash tests can set to add more env. vars.
+ * tests/scripts/features/export: Change to use %extraENV.
+ * tests/scripts/functions/eval: Ditto.
+ * tests/scripts/functions/origin: Ditto.
+ * tests/scripts/options/dash-e: Ditto.
+ * tests/scripts/variables/SHELL: Ditto.
+
+2005-06-27 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-W: Use 'echo >>' instead of touch to update
+ files.
+ * scripts/features/reinvoke: Rewrite to be safer on systems with
+ subsecond timestamps.
+ * scripts/features/patternrules: False exits with different error
+ codes on different systems (for example, Linux => 1, Solaris => 255).
+
+ * scripts/options/dash-W: Set the timestamp to foo.x in the future,
+ to be sure it will be considered updated when it's remade.
+
+2005-06-26 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/shell: New test suite for the shell function.
+
+2005-06-25 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/include: Test include/-include/sinclude with no
+ arguments. Tests fix for Savannah bug #1761.
+
+ * scripts/misc/general3: Implement comprehensive testing of
+ backslash-newline behavior in command scripts: various types of
+ quoting, fast path / slow path, etc.
+ Tests fix for Savannah bug #1332.
+
+ * scripts/options/symlinks: Test symlinks to non-existent files.
+ Tests fix for Savannah bug #13280.
+
+ * scripts/misc/general3: Test semicolons in variable references.
+ Tests fix for Savannah bug #1454.
+
+ * scripts/variables/MAKE_RESTARTS: New file: test the
+ MAKE_RESTARTS variable.
+ * scripts/options/dash-B: Test re-exec doesn't loop infinitely.
+ Tests fix for Savannah bug #7566.
+ * scripts/options/dash-W: New file: test the -W flag, including
+ re-exec infinite looping.
+
+2005-06-12 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/misc/close_stdout: Add a test for Savannah bug #1328.
+ This test only works on systems that have /dev/full (e.g., Linux).
+
+2005-06-09 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/foreach: Add a test for Savannah bug #11913.
+
+2005-05-31 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/include: Add a test for Savannah bug #13216.
+ * scripts/features/patternrules: Add a test for Savannah bug #13218.
+
+2005-05-13 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/conditionals: Add tests for the new if... else
+ if... endif syntax.
+
+2005-05-03 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/DEFAULT_GOAL: Rename DEFAULT_TARGET to
+ DEFAULT_GOAL.
+
+2005-05-02 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Add a test for exporting recursive
+ variables containing $(shell) calls. Rewrite this script to use
+ run_make_test() everywhere.
+
+2005-04-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/targets/SECONDARY: Add a test for Savannah bug #12331.
+
+2005-03-15 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/variables/automatic: Add a test for Savannah bug #12320.
+
+2005-03-10 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/patternrules: Add a test for Savannah bug #12267.
+
+2005-03-09 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/variables/DEFAULT_TARGET: Add a test for Savannah
+ bug #12266.
+
+2005-03-04 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/patternrules: Add a test for Savannah bug #12202.
+
+2005-03-03 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/se_implicit: Add a test for stem
+ termination bug. Add a test for stem triple-expansion bug.
+
+ * scripts/features/se_statpat: Add a test for stem
+ triple-expansion bug.
+
+ * scripts/features/statipattrules: Change test #4 to reflect
+ new way empty prerequisite list is handled.
+
+
+2005-03-01 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/statipattrules: Add a test for
+ Savannah bug #12180.
+
+2005-02-28 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-q: Add a test for Savannah bug # 7144.
+
+ * scripts/options/symlinks: New file to test checking of symlink
+ timestamps. Can't use filename dash-L because it conflicts with
+ dash-l on case-insensitive filesystems.
+
+ * scripts/variables/MAKEFILE_LIST, scripts/variables/MFILE_LIST:
+ Rename MAKEFILE_LIST test to MFILE_LIST, for systems that need 8.3
+ unique filenames.
+
+2005-02-28 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/variables/DEFAULT_TARGET: Test the .DEFAULT_TARGET
+ special variable.
+
+2005-02-27 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/se_explicit: Test the second expansion in
+ explicit rules.
+ * scripts/features/se_implicit: Test the second expansion in
+ implicit rules.
+ * scripts/features/se_statpat: Test the second expansion in
+ static pattern rules.
+ * scripts/variables/automatic: Fix to work with the second
+ expansion.
+
+ * scripts/misc/general4: Add a test for bug #12091.
+
+2005-02-27 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/eval: Check that eval of targets within
+ command scripts fails. See Savannah bug # 12124.
+
+2005-02-26 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (compare_output): If a basic comparison of the
+ log and answer doesn't match, try harder: change all backslashes
+ to slashes and all CRLF to LF. This helps on DOS/Windows systems.
+
+2005-02-09 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/recursion: Test command line variable settings:
+ only one instance of a given variable should be provided.
+
+2004-11-30 Boris Kolpackov <boris@kolpackov.net>
+
+ * tests/scripts/functions/abspath: New file: test `abspath'
+ built-in function.
+
+ * tests/scripts/functions/realpath: New file: test `realpath'
+ built-in function.
+
+2004-11-28 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-C [WINDOWS32]: Add a test for bug #10252;
+ this doesn't really test anything useful in UNIX but...
+
+ * scripts/variables/SHELL: New file: test proper handling of SHELL
+ according to POSIX rules. Fixes bug #1276.
+
+2004-10-21 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/functions/word: Test $(firstword ) and $(lastword ).
+
+2004-10-05 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/patspecific_vars: Test simple/recursive
+ variable expansion.
+
+2004-09-28 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/include: Test dontcare flag inheritance
+ when rebuilding makefiles.
+
+2004-09-27 Boris Kolpackov <boris@kolpackov.net>
+
+ * scripts/features/patspecific_vars: Test exported variables.
+
+2004-09-22 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (run_make_test): Don't add newlines to the
+ makestring or answer if they are completely empty.
+
+ * scripts/features/patternrules: Rename from implicit_prereq_eval.
+
+ * scripts/test_template: Rework the template.
+
+2004-09-21 Boris Kolpackov <boris@kolpackov.net>
+
+ * run_make_tests.pl: Change `#!/usr/local/bin/perl' to be
+ `#!/usr/bin/env perl'.
+
+ * scripts/features/implicit_prereq_eval: Test implicit rule
+ prerequisite evaluation code.
+
+2004-09-21 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (run_make_test): Enhance to allow the make
+ string to be undef: in that case it reuses the previous make
+ string. Allows multiple tests on the same makefile.
+
+ * scripts/variables/flavors: Add some tests for prefix characters
+ interacting with define/endef variables.
+
+2004-09-20 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/substitution: Rewrite to use run_make_test()
+ interface, and add test for substitution failures reported by
+ Markus Mauhart <qwe123@chello.at>.
+
+2004-03-22 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (run_each_test, toplevel, compare_output): Change
+ to track both the testing categories _AND_ the number of
+ individual tests, and report both sets of numbers.
+
+2004-02-21 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/origin: Set our own environment variable
+ rather than relying on $HOME.
+
+2004-01-21 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/conditionals: Test arguments to ifn?def which
+ contain whitespace (such as a function that is evaluated). Bug
+ #7257.
+
+2004-01-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/order_only: Test order-only prerequisites in
+ pattern rules (patch #2349).
+
+2003-11-02 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/if: Test if on conditionals with trailing
+ whitespace--bug #5798.
+
+ * scripts/functions/eval: Test eval in a non-file context--bug #6195.
+
+2003-04-19 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/patspecific_vars: Test multiple patterns
+ matching the same target--Bug #1405.
+
+2003-04-09 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (set_more_defaults): A new $port_type of
+ 'OS/2' for (surprise!) OS/2. Also choose a wait time of 2 seconds
+ for OS/2.
+
+2003-03-28 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/targets/SECONDARY: Test the "global" .SECONDARY (with
+ not prerequisites)--Bug #2515.
+
+2003-01-30 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Test very long target-specific
+ variable definition lines (longer than the default make buffer
+ length). Tests patch # 1022.
+
+ * scripts/functions/eval: Test very recursive $(eval ...) calls
+ with simple variable expansion (bug #2238).
+
+ * scripts/functions/word: Test error handling for word and
+ wordlist functions (bug #2407).
+
+2003-01-22 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/call: Test recursive argument masking (bug
+ #1744).
+
+2002-10-25 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/eval: Test using $(eval ...) inside
+ conditionals (Bug #1516).
+
+2002-10-14 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-t: Add a test for handling -t on targets
+ with no commands (Bug #1418).
+
+2002-10-13 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Add a test for exporting
+ target-specific vars (Bug #1391).
+
+2002-10-05 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/automatic: Add tests for $$(@), $${@}, $${@D},
+ and $${@F}.
+
+2002-09-23 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/escape: Test handling of escaped comment
+ characters in targets and prerequisites.
+
+2002-09-18 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/export: Test export/unexport of multiple
+ variables in a single command.
+
+2002-09-17 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Tests for Bug #940: test
+ target-specific and pattern-specific variables in conjunction with
+ double-colon targets.
+
+2002-09-10 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (compare_output): Match the new format for time
+ skew error messages.
+
+ * scripts/features/export: Created. Add tests for export/unexport
+ capabilities, including exporting/unexporting expanded variables.
+
+ * scripts/features/conditionals: Add a test for expanded variables
+ in ifdef conditionals.
+
+2002-09-04 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/reinvoke: Change touch/sleep combos to utouch
+ invocations.
+ * scripts/features/vpathgpath: Ditto.
+ * scripts/features/vpathplus: Ditto.
+ * scripts/options/dash-n: Ditto.
+ * scripts/targets/INTERMEDIATE: Ditto.
+ * scripts/targets/SECONDARY: Ditto.
+
+ * scripts/options/dash-t: Added a test for the -t bug fixed by
+ Henning Makholm. This test was also contributed by Henning.
+
+ * scripts/misc/general4: Add a test suite for obscure algorithmic
+ features of make. First test: make sure creation subdirectories
+ as prerequisites of targets works properly.
+
+ * scripts/misc/version: Remove this bogus test.
+
+2002-08-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/misc/general3: Add a test for makefiles that don't end
+ in newlines.
+
+ * scripts/variables/special: Create tests for the special
+ variables (.VARIABLES and .TARGETS). Comment out .TARGETS test
+ for now as it's not yet supported.
+
+2002-08-01 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-B: Add a test for the new -B option.
+
+2002-07-11 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (valid_option): Add support for Valgrind. Use
+ -valgrind option to the test suite.
+ (set_more_defaults): Set up the file descriptor to capture
+ Valgrind output. We have to unset its close-on-exec flag; we
+ hardcode the value for F_SETFD (2) rather than load it; hopefully
+ this will help us avoid breaking the Windows/DOS test suite.
+
+2002-07-10 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/automatic: Add some tests for $$@, $$(@D), and
+ $$(@F).
+
+ * test_driver.pl (utouch): Create a new function that creates a
+ file with a specific timestamp offset. Use of this function will
+ let us avoid lots of annoying sleep() invocations in the tests
+ just to get proper timestamping, which will make the tests run a
+ lot faster. So far it's only used in the automatic test suite.
+
+2002-07-09 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/automatic: Create a test for automatic variables.
+
+2002-07-08 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/order_only: Test new order-only prerequisites.
+
+2002-07-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/eval: Test new function.
+ * scripts/functions/value: Test new function.
+ * scripts/variables/MAKEFILE_LIST: Test new variable.
+
+2002-04-28 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/call: New test: transitive closure
+ implementation using $(call ...) to test variable recursion.
+
+2002-04-21 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (compare_dir_tree): Ignore CVS and RCS
+ directories in the script directories.
+
+2001-05-02 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/flavors: Test define/endef scripts where only
+ one of the command lines is quiet.
+
+2000-06-22 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-q: New file; test the -q option. Includes
+ a test for PR/1780.
+
+2000-06-21 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Added a test for PR/1709: allowing
+ semicolons in target-specific variable values.
+
+2000-06-19 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/addsuffix: Test for an empty final argument.
+ Actually this bug might have happened for any function, but this
+ one was handy.
+
+2000-06-17 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * scripts/options/general: If parallel jobs are not supported,
+ expect a warning message from Make.
+
+2000-06-15 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * scripts/options/general: Don't try -jN with N != 1 if parallel
+ jobs are not supported.
+
+2000-05-24 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/general: Test general option processing (PR/1716).
+
+2000-04-11 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/strip: Test empty value to strip (PR/1689).
+
+2000-04-08 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * scripts/features/reinvoke: Sleep before updating the target
+ files in the first test, to ensure its time stamp really gets
+ newer; otherwise Make might re-exec more than once.
+
+2000-04-07 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * scripts/features/double_colon: Don't run the parallel tests if
+ parallel jobs aren't supported.
+
+2000-04-04 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/word: wordlist doesn't swap arguments anymore.
+
+2000-03-27 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/statipattrules: Test that static pattern rules
+ whose prerequisite patterns resolve to empty strings throw an
+ error (instead of dumping core). Fixes PR/1670.
+
+ * scripts/features/reinvoke: Make more robust by touching "b"
+ first, to ensure it's not newer than "a".
+ Reported by Marco Franzen <Marco.Franzen@Thyron.com>.
+ * scripts/options/dash-n: Ditto.
+
+ * scripts/functions/call: Whoops. The fix to PR/1527 caused
+ recursive invocations of $(call ...) to break. I can't come up
+ with any way to get both working at the same time, so I backed out
+ the fix to 1527 and added a test case for recursive calls. This
+ also tests the fix for PR/1610.
+
+ * scripts/features/double_colon: Test that circular dependencies
+ in double-colon rule sets are detected correctly (PR/1671).
+
+2000-03-26 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/targets/INTERMEDIATE: Test that make doesn't remove
+ .INTERMEDIATE files when given on the command line (PR/1669).
+
+2000-03-08 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-k: Add a test for error detection by
+ multiple targets depending on the same prerequisite with -k.
+ For PR/1634.
+
+2000-02-07 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/escape: Add a test for backslash-escaped spaces
+ in a target name (PR/1586).
+
+2000-02-04 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/patspecific_vars: Add a test for pattern-specific
+ target variables inherited from the parent target (PR/1407).
+
+2000-02-02 Paul D. Smith <psmith@gnu.org>
+
+ * run_make_tests.pl (set_more_defaults): Hard-code the LANG to C
+ to make sure sorting order, etc. is predictable.
+ Reported by Andreas Jaeger <aj@suse.de>.
+
+ * run_make_tests.pl (set_more_defaults): Set the $wtime variable
+ depending on the OS. Eli Zaretskii <eliz@is.elta.co.il> reports
+ this seems to need to be *4* on DOS/Windows, not just 2. Keep it
+ 1 for other systems.
+ * scripts/features/vpathplus (touchfiles): Use the $wtime value
+ instead of hardcoding 2.
+ * scripts/targets/SECONDARY: Ditto.
+ * scripts/targets/INTERMEDIATE: Ditto.
+
+2000-01-27 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (toplevel): Don't try to run test scripts which
+ are really directories.
+
+2000-01-23 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/include: Remove a check; the fix caused more
+ problems than the error, so I removed it and removed the test for
+ it.
+
+2000-01-11 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/call: Add a test for PR/1517 and PR/1527: make
+ sure $(call ...) doesn't eval its arguments and that you can
+ invoke foreach from it without looping forever.
+
+1999-12-15 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/targets/INTERMEDIATE: Add a test for PR/1423: make sure
+ .INTERMEDIATE settings on files don't disable them as implicit
+ intermediate possibilities.
+
+1999-12-01 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/double_colon: Add a test for PR/1476: Try
+ double-colon rules as non-goal targets and during parallel builds
+ to make sure they're handled serially.
+
+1999-11-17 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/functions/if: Add a test for PR/1429: put some text
+ after an if-statement to make sure it works.
+
+ * scripts/features/targetvars: Add a test for PR/1380: handling +=
+ in target-specific variable definitions correctly.
+
+1999-10-15 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/variables/MAKEFILES: This was really broken: it didn't
+ test anything at all, really. Rewrote it, plus added a test for
+ PR/1394.
+
+1999-10-13 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/options/dash-n: Add a test for PR/1379: "-n doesn't
+ behave properly when used with recursive targets".
+
+1999-10-08 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/targetvars: Add a check for PR/1378:
+ "Target-specific vars don't inherit correctly"
+
+1999-09-29 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (get_osname): Change $fancy_file_names to
+ $short_filenames and reverse the logic.
+ (run_each_test): Change test of non-existent $port_host to use
+ $short_filenames--problem reported by Eli Zaretskii.
+
+1999-09-23 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/parallelism: Add a check to ensure that the
+ jobserver works when we re-invoke. Also cleaned up the tests a
+ little, reducing the number of rules we use so the test won't need
+ as many "sleep" commands.
+
+1999-09-16 Paul D. Smith <psmith@gnu.org>
+
+ * scripts/features/reinvoke: Remove invocations of "touch" in
+ makefiles. See the comments on the touch function rewrite below.
+ Note that UNIX touch behaves the same way if the file already
+ exists: it sets the time to the _local_ time. We don't want
+ this. This is probably a good tip for makefile writers in
+ general, actually... where practical.
+ * scripts/options/dash-l: Ditto.
+ * scripts/options/dash-n: Ditto.
+
+ * test_driver.pl (run_each_test): In retrospect, I don't like the
+ .lN/.bN/.dN postfix required by DOS. So, for non-DOS systems I
+ changed it back to use .log, .base, and .diff.
+
+ * run_make_tests.pl (set_more_defaults): Move the check for the
+ make pathname to here from set_defaults (that's too early since it
+ happens before the command line processing).
+ Create a new variable $port_type, calculated from $osname, to
+ specify what kind of system we're running on. We should integrate
+ the VOS stuff here, too.
+ (valid_option): Comment out the workdir/-work stuff so people
+ won't be fooled into thinking it works... someone needs to fix
+ this, though!
+
+ * scripts/functions/origin: Use $port_type instead of $osname.
+ * scripts/functions/foreach: Ditto.
+ * scripts/features/default_names: Ditto.
+
+1999-09-15 Paul D. Smith <psmith@gnu.org>
+
+ * test_driver.pl (touch): Rewrite this function. Previously it
+ used to use utime() to hard-set the time based on the current
+ local clock, or, if the file didn't exist, it merely created it.
+ This mirrors exactly what real UNIX touch does, but it fails badly
+ on networked filesystems where the FS server clock is skewed from
+ the local clock: normally modifying a file causes it to get a mod
+ time based on the _server's_ clock. Hard-setting it based on the
+ _local_ clock causes gratuitous errors and makes the tests
+ unreliable except on local filesystems. The new function will
+ simply modify the file, allowing the filesystem to set the mod
+ time as it sees fit.
+
+ * scripts/features/parallelism: The second test output could
+ change depending on how fast some scripts completed; use "sleep"
+ to force the order we want.
+
+ * test_driver.pl (toplevel): A bug in Perl 5.000 to Perl 5.004
+ means that "%ENV = ();" doesn't do the right thing. This worked
+ in Perl 4 and was fixed in Perl 5.004_01, but use a loop to delete
+ the environment rather than require specific versions.
+
+ * run_make_tests.pl (set_more_defaults): Don't use Perl 5 s///
+ modifier "s", so the tests will run with Perl 4.
+ (set_more_defaults): Set $pure_log to empty if there's no -logfile
+ option in PURIFYOPTIONS.
+ (setup_for_test): Don't remove any logs unless $pure_log is set.
+
+1999-09-15 Eli Zaretskii <eliz@is.elta.co.il>
+
+ * scripts/features/reinvoke: Put the SHELL definition in the right
+ test makefile.
+
+1999-09-15 Paul D. Smith <psmith@gnu.org>
+
+ ChangeLog file for the test suite created.
+
+
+Copyright (C) 1992-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/tests/NEWS b/tests/NEWS
new file mode 100644
index 0000000..f55e4ba
--- /dev/null
+++ b/tests/NEWS
@@ -0,0 +1,178 @@
+Changes from 0.4.9 to 3.78 (Sep 6, 1999):
+
+ Lots of new tests. Renamed to follow the GNU make scheme. Also
+ added some support for using Purify with make.
+
+ Rob Tulloh contributed some changes to get the test suite running on
+ NT; I tweaked them a bit (hopefully I didn't break anything!) Note
+ that NT doesn't grok the self-exec funkiness that Unix shells use,
+ so instead I broke that out into a separate shell script
+ "run_make_tests" that invokes perl with the (renamed) script
+ run_make_tests.pl.
+
+ Eli Zaretski contributed changes to get the test suite running on
+ DOS with DJGPP. I also meddled in these somewhat.
+
+ If you're on DOS or NT you should run "perl.exe run_make_tests.pl ..."
+ If you're on Unix, you can continue to run "./run_make_tests ..." as
+ before.
+
+Changes from 0.4.8 to 0.4.9 (May 14, 1998):
+
+ Release by Paul D. Smith <psmith@baynetworks.com>; I'm the one to
+ blame for problems in this version :).
+
+ Add some perl to test_driver.pl to strip out GNU make clock skew
+ warning messages from the output before comparing it to the
+ known-good output.
+
+ A new test for escaped :'s in filenames (someone on VMS found this
+ didn't work anymore in 3.77): scripts/features/escape.
+
+Changes from 0.4.7 to 0.4.8 (May 14, 1998):
+
+ Release by Paul D. Smith <psmith@baynetworks.com>; I'm the one to
+ blame for problems in this version :).
+
+ New tests for features to be included in GNU make 3.77.
+
+Changes from 0.4.6 to 0.4.7 (August 18, 1997):
+
+ Release by Paul D. Smith <psmith@baynetworks.com>; I'm the one to
+ blame for problems in this version :).
+
+ Reworked some tests to make sure they all work with both perl4 and perl5.
+
+ Work around a bug in perl 5.004 which doesn't clean the environment
+ correctly in all cases (fixed in at least 5.004_02).
+
+ Updated functions/strip to test for newline stripping.
+
+ Keep a $PURIFYOPTIONS env variable if present.
+
+Changes from 0.4.5 to 0.4.6 (April 07, 1997):
+
+ Release by Paul D. Smith <psmith@baynetworks.com>; I'm the one to
+ blame for problems in this version :).
+
+ Updated to work with GNU make 3.76 (and pretests).
+
+ Added new tests and updated existing ones. Note that the new tests
+ weren't tested with perl 4, however I think they should work.
+
+ Ignore any tests whose filenames end in "~", so that Emacs backup
+ files aren't run.
+
+Changes from 0.4.4 to 0.4.5 (April 29, 1995):
+
+ Updated to be compatible with perl 5.001 as well as 4.036.
+
+ Note: the test suite still won't work on 14-char filesystems
+ (sorry, Kaveh), but I will get to it.
+
+ Also, some tests and stuff still haven't made it in because I
+ haven't had time to write the test scripts for them. But they,
+ too, will get in eventually. Contributions of scripts (i.e., tests
+ that I can just drop in) are particularly welcome and will be
+ incorporated immediately.
+
+Changes from 0.4.3 to 0.4.4 (March 1995):
+
+ Updated for changes in make 3.72.12, and to ignore CVS directories
+ (thanks go to Jim Meyering for the patches for this).
+
+ Fixed uname call to not make a mess on BSD/OS 2.0 (whose uname -a
+ is very verbose). Let me know if this doesn't work correctly on
+ your system.
+
+ Changed to display test name while it is running, not just when it
+ finishes.
+
+ Note: the test suite still won't work on 14-char filesystems
+ (sorry, Kaveh), but I will get to it.
+
+ Also, some tests and stuff still haven't made it in because I
+ haven't had time to write the test scripts for them. But they,
+ too, will get in eventually.
+
+Changes from 0.4 to 0.4.3 (October 1994):
+
+ Fixed bugs (like dependencies on environment variables).
+
+ Caught up with changes in make.
+
+ The load_limit test should now silently ignore a failure due to
+ make not being able to read /dev/kmem.
+
+ Reorganized tests into subdirs and renamed lots of things so that
+ those poor souls who still have to deal with 14-char filename
+ limits won't hate me any more. Thanks very much to Kaveh R. Ghazi
+ <ghazi@noc.rutgers.edu> for helping me with the implementation and
+ testing of these changes, and for putting up with all my whining
+ about it...
+
+ Added a $| = 1 so that systems that don't seem to automatically
+ flush their output for some reason will still print all the
+ output. I'd hate for someone to miss out on the smiley that
+ you're supposed to get when all the tests pass... :-)
+
+Changes from 0.3 to 0.4 (August 1993):
+
+ Lost in the mists of time (and my hurry to get it out before I
+ left my job).
+
+Changes from 0.2 to 0.3 (9-30-92):
+
+ Several tests fixed to match the fact that MAKELEVEL > 0 or -C now
+ imply -w.
+
+ parallel_execution test fixed to not use double colon rules any
+ more since their behavior has changed.
+
+ errors_in_commands test fixed to handle different error messages
+ and return codes from rm.
+
+ Several tests fixed to handle -make_path with a relative path
+ and/or a name other than "make" for make.
+
+ dash-e-option test fixed to use $PATH instead of $USER (since the
+ latter does not exist on some System V systems). This also
+ removes the dependency on getlogin (which fails under certain
+ weird conditions).
+
+ test_driver_core changed so that you can give a test name like
+ scripts/errors_in_commands and it will be handled correctly (handy
+ if you have a shell with filename completion).
+
+Changes from 0.1 to 0.2 (5-4-92):
+
+ README corrected to require perl 4.019, not 4.010.
+
+ -make_path replaces -old.
+
+ errors_in_commands test updated for change in format introduced in
+ make 3.62.6.
+
+ test_driver_core now uses a better way of figuring what OS it is
+ running on (thanks to meyering@cs.utexas.edu (Jim Meyering) for
+ suggesting this, as well as discovering the hard way that the old
+ way (testing for /mnt) fails on his machine).
+
+ Some new tests were added.
+
+
+-------------------------------------------------------------------------------
+Copyright (C) 1992-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/tests/README b/tests/README
new file mode 100644
index 0000000..0213159
--- /dev/null
+++ b/tests/README
@@ -0,0 +1,102 @@
+The test suite was originally written by Steve McGee and Chris Arthur.
+It is covered by the GNU General Public License (Version 2), described
+in the file COPYING. It has been maintained as part of GNU make proper
+since GNU make 3.78.
+
+This entire test suite, including all test files, are copyright and
+distributed under the following terms:
+
+ -----------------------------------------------------------------------------
+ Copyright (C) 1992-2016 Free Software Foundation, Inc.
+ This file is part of GNU Make.
+
+ GNU Make is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3 of the License, or (at your option) any later
+ version.
+
+ GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program. If not, see <http://www.gnu.org/licenses/>.
+ -----------------------------------------------------------------------------
+
+The test suite requires Perl. These days, you should have at least Perl
+5.004 (available from ftp.gnu.org, and portable to many machines). It
+used to work with Perl 4.036 but official support for Perl 4.x was
+abandoned a long time ago, due to lack of testbeds, as well as interest.
+
+The test suite assumes that the first "diff" it finds on your PATH is
+GNU diff, but that only matters if a test fails.
+
+To run the test suite on a UNIX system, use "perl ./run_make_tests"
+(or just "./run_make_tests" if you have a perl on your PATH).
+
+To run the test suite on Windows NT or DOS systems, use
+"perl.exe ./run_make-tests.pl".
+
+By default, the test engine picks up the first executable called "make"
+that it finds in your path. You may use the -make_path option (i.e.,
+"perl run_make_tests -make_path /usr/local/src/make-3.78/make") if
+you want to run a particular copy. This now works correctly with
+relative paths and when make is called something other than "make" (like
+"gmake").
+
+Tests cannot end with a "~" character, as the test suite will ignore any
+that do (I was tired of having it run my Emacs backup files as tests :))
+
+Also, sometimes the tests may behave strangely on networked
+filesystems. You can use mkshadow to create a copy of the test suite in
+/tmp or similar, and try again. If the error disappears, it's an issue
+with your network or file server, not GNU make (I believe). This
+shouldn't happen very often anymore: I've done a lot of work on the
+tests to reduce the impacts of this situation.
+
+The options/dash-l test will not really test anything if the copy of
+make you are using can't obtain the system load. Some systems require
+make to be setgid sys or kmem for this; if you don't want to install
+make just to test it, make it setgid to kmem or whatever group /dev/kmem
+is (i.e., "chgrp kmem make;chmod g+s make" as root). In any case, the
+options/dash-l test should no longer *fail* because make can't read
+/dev/kmem.
+
+A directory named "work" will be created when the tests are run which
+will contain any makefiles and "diff" files of tests that fail so that
+you may look at them afterward to see the output of make and the
+expected result.
+
+There is a -help option which will give you more information about the
+other possible options for the test suite.
+
+
+Open Issues
+-----------
+
+The test suite has a number of problems which should be addressed. One
+VERY serious one is that there is no real documentation. You just have
+to see the existing tests. Use the newer tests: many of the tests
+haven't been updated to use the latest/greatest test methods. See the
+ChangeLog in the tests directory for pointers.
+
+The second serious problem is that it's not parallelizable: it scribbles
+all over its installation directory and so can only test one make at a
+time. The third serious problem is that it's not relocatable: the only
+way it works when you build out of the source tree is to create
+symlinks, which doesn't work on every system and is bogus to boot. The
+fourth serious problem is that it doesn't create its own sandbox when
+running tests, so that if a test forgets to clean up after itself that
+can impact future tests.
+
+
+Bugs
+----
+
+Any complaints/suggestions/bugs/etc. for the test suite itself (as
+opposed to problems in make that the suite finds) should be handled the
+same way as normal GNU make bugs/problems (see the README for GNU make).
+
+
+ Paul D. Smith
+ Chris Arthur
diff --git a/tests/config-flags.pm.in b/tests/config-flags.pm.in
new file mode 100644
index 0000000..29ba146
--- /dev/null
+++ b/tests/config-flags.pm.in
@@ -0,0 +1,19 @@
+# This is a -*-perl-*- script
+#
+# Set variables that were defined by configure, in case we need them
+# during the tests.
+
+%CONFIG_FLAGS = (
+ AM_LDFLAGS => '@AM_LDFLAGS@',
+ AR => '@AR@',
+ CC => '@CC@',
+ CFLAGS => '@CFLAGS@',
+ CPP => '@CPP@',
+ CPPFLAGS => '@CPPFLAGS@',
+ GUILE_CFLAGS => '@GUILE_CFLAGS@',
+ GUILE_LIBS => '@GUILE_LIBS@',
+ LDFLAGS => '@LDFLAGS@',
+ LIBS => '@LIBS@'
+);
+
+1;
diff --git a/tests/config_flags_pm.com b/tests/config_flags_pm.com
new file mode 100755
index 0000000..a4271b6
--- /dev/null
+++ b/tests/config_flags_pm.com
@@ -0,0 +1,53 @@
+$!
+$! config_flags_pm.com - Build config-flags.pm on VMS.
+$!
+$! Just good enough to run the self tests for now.
+$!
+$! Copyright (C) 2014-2016 Free Software Foundation, Inc.
+$! This file is part of GNU Make.
+$!
+$! GNU Make is free software; you can redistribute it and/or modify it under
+$! the terms of the GNU General Public License as published by the Free Software
+$! Foundation; either version 3 of the License, or (at your option) any later
+$! version.
+$!
+$! GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+$! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+$! FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+$! details.
+$!
+$! You should have received a copy of the GNU General Public License along with
+$! this program. If not, see <http://www.gnu.org/licenses/>.
+$!
+$!
+$ open/read cfpm_in config-flags.pm.in
+$!
+$ outfile = "sys$disk:[]config-flags.pm"
+$!
+$ cflags = "/include=([],[.glob]"
+$!
+$ create 'outfile'
+$ open/append cfpm 'outfile'
+$!
+$cfpm_read_loop:
+$ read cfpm_in/end=cfpm_read_loop_end line_in
+$ line_in_len = f$length(line_in)
+$ if f$locate("@", line_in) .lt. line_in_len
+$ then
+$ part1 = f$element(0, "@", line_in)
+$ key = f$element(1, "@", line_in)
+$ part2 = f$element(2, "@", line_in)
+$ value = ""
+$ if key .eqs. "CC" then value = "CC"
+$ if key .eqs. "CPP" then value = "CPP"
+$ if key .eqs. "CFLAGS" then value = cflags
+$ if key .eqs. "GUILE_CFLAGS" then value = cflags
+$ write cfpm part1, value, part2
+$ goto cfpm_read_loop
+$ endif
+$ write cfpm line_in
+$ goto cfpm_read_loop
+$cfpm_read_loop_end:
+$ close cfpm_in
+$ close cfpm
+$!
diff --git a/tests/guile.supp b/tests/guile.supp
new file mode 100644
index 0000000..9e9b01b
--- /dev/null
+++ b/tests/guile.supp
@@ -0,0 +1,31 @@
+# Guile valgrind suppression file
+# Created with Guile 1.8.7
+
+# --- Garbage collection
+{
+ guilegc
+ Memcheck:Cond
+ ...
+ fun:scm_gc_for_newcell
+}
+{
+ guilegc
+ Memcheck:Value4
+ ...
+ fun:scm_gc_for_newcell
+}
+{
+ guilegc
+ Memcheck:Value8
+ ...
+ fun:scm_gc_for_newcell
+}
+
+
+# -- scm_alloc_struct
+{
+ guileheap
+ Memcheck:Leak
+ ...
+ fun:scm_alloc_struct
+}
diff --git a/tests/mkshadow b/tests/mkshadow
new file mode 100755
index 0000000..23c7ab0
--- /dev/null
+++ b/tests/mkshadow
@@ -0,0 +1,57 @@
+#!/bin/sh
+#
+# Simple script to make a "shadow" test directory, using symbolic links.
+# Typically you'd put the shadow in /tmp or another local disk
+#
+# Copyright (C) 1992-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+case "$1" in
+ "") echo 'Usage: mkshadow <destdir>'; exit 1 ;;
+esac
+
+dest="$1"
+
+if [ ! -d "$dest" ]; then
+ echo "Destination directory '$dest' must exist!"
+ exit 1
+fi
+
+if [ ! -f run_make_tests ]; then
+ echo "The current directory doesn't appear to contain the test suite!"
+ exit 1
+fi
+
+suite=`pwd | sed 's%^/tmp_mnt%%'`
+name=`basename "$suite"`
+
+files=`echo *`
+
+set -e
+
+mkdir "$dest/$name"
+cd "$dest/$name"
+
+ln -s "$suite" .testdir
+
+for f in $files; do
+ ln -s .testdir/$f .
+done
+
+rm -rf work
+
+echo "Shadow test suite created in '$dest/$name'."
+exit 0
diff --git a/tests/run_make_tests b/tests/run_make_tests
new file mode 100755
index 0000000..b68b784
--- /dev/null
+++ b/tests/run_make_tests
@@ -0,0 +1,2 @@
+#!/bin/sh
+exec perl $0.pl ${1+"$@"}
diff --git a/tests/run_make_tests.com b/tests/run_make_tests.com
new file mode 100755
index 0000000..de79a91
--- /dev/null
+++ b/tests/run_make_tests.com
@@ -0,0 +1,272 @@
+$! Test_make.com
+$!
+$! This is a wrapper for the GNU make perl test programs on VMS.
+$!
+$! Parameter "-help" for description on how to use described below.
+$!
+$! Copyright (C) 2014-2016 Free Software Foundation, Inc.
+$! This file is part of GNU Make.
+$!
+$! GNU Make is free software; you can redistribute it and/or modify it under
+$! the terms of the GNU General Public License as published by the Free Software
+$! Foundation; either version 3 of the License, or (at your option) any later
+$! version.
+$!
+$! GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+$! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+$! FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+$! details.
+$!
+$! You should have received a copy of the GNU General Public License along with
+$! this program. If not, see <http://www.gnu.org/licenses/>.
+$!
+$!
+$! Allow more than 8 paramters with using commas as a delimiter.
+$!
+$ params = "''p1',''p2',''p3',''p4',''p5',''p6',''p7',''p8'"
+$!
+$ test_flags = ",verbose,detail,keep,usage,help,debug,"
+$ test_flags_len = f$length(test_flags)
+$ verbose_flag = ""
+$ detail_flag = ""
+$ keep_flag = ""
+$ usage_flag = ""
+$ help_flag = ""
+$ debug_flag = ""
+$!
+$ ignored_options = "profile,make,srcdir,valgrind,memcheck,massif,"
+$ ignored_option_len = f$length(ignored_options)
+$!
+$ testname = ""
+$ make :== $bin:make.exe"
+$!
+$ i = 0
+$param_loop:
+$ param = f$element(i, ",", params)
+$ i = i + 1
+$ if param .eqs. "" then goto param_loop
+$ if param .eqs. "," then goto param_loop_end
+$ param_len = f$length(param)
+$ if f$locate("/", param) .lt. param_len
+$ then
+$ if testname .nes. ""
+$ then
+$ write sys$output "Only the last test name specified will be run!"
+$ endif
+$ testname = param
+$ goto param_loop
+$ endif
+$ lc_param = f$edit(param,"LOWERCASE") - "-"
+$ if f$locate(",''lc_param',", ignored_options) .lt. ignored_option_len
+$ then
+$ write sys$output "parameter ''param' is ignored on VMS for now."
+$ goto param_loop
+$ endif
+$ if f$locate(",''lc_param',", test_flags) .lt. test_flags_len
+$ then
+$ 'lc_param'_flag = "-" + lc_param
+$ goto param_loop
+$ endif
+$ write sys$output "parameter ''param' is not known to VMS."
+$ goto param_loop
+$!
+$param_loop_end:
+$!
+$no_gnv = 1
+$no_perl = 1
+$!
+$! Find GNV 2.1.3 + manditory updates
+$! If properly updated, the GNV$GNU logical name is present.
+$! Updated GNV utilities have a gnv$ prefix on them.
+$ gnv_root = f$trnlnm("GNV$GNU", "LNM$SYSTEM_TABLE")
+$ if gnv_root .nes. ""
+$ then
+$ no_gnv = 0
+$ ! Check for update ar utility.
+$ new_ar = "gnv$gnu:[usr.bin]gnv$ar.exe"
+$ if f$search(new_ar) .nes. ""
+$ then
+$ ! See if a new port of ar exists.
+$ ar :== $'new_ar'
+$ else
+$ ! Fall back to legacy GNV AR wrapper.
+$ old_ar = "gnv$gnu:[bin]ar.exe"
+$ if f$search(old_ar) .nes. ""
+$ then
+$ ar :== $'old_ar'
+$ else
+$ no_gnv = 1
+$ endif
+$ endif
+$ ! Check for updated bash
+$ if no_gnv .eq. 0
+$ then
+$ new_bash = "gnv$gnu:[bin]gnv$bash.exe"
+$ if f$search(new_bash) .nes. ""
+$ then
+$ bash :== $'new_bash'
+$ sh :== $'new_bash'
+$ else
+$ no_gnv = 1
+$ endif
+$ endif
+$ ! Check for updated coreutils
+$ if no_gnv .eq. 0
+$ then
+$ new_cat = "gnv$gnu:[bin]gnv$cat.exe"
+$ if f$search(new_cat) .nes. ""
+$ then
+$ cat :== $'new_cat'
+$ cp :== $gnv$gnu:[bin]gnv$cp.exe
+$ echo :== $gnv$gnu:[bin]gnv$echo.exe
+$ false :== $gnv$gnu:[bin]gnv$false.exe
+$ true :== $gnv$gnu:[bin]gnv$true.exe
+$ touch :== $gnv$gnu:[bin]gnv$touch.exe
+$ mkdir :== $gnv$gnu:[bin]gnv$mkdir.exe
+$ rm :== $gnv$gnu:[bin]gnv$rm.exe
+$ sleep :== $gnv$gnu:[bin]gnv$sleep.exe
+$ else
+$ no_gnv = 1
+$ endif
+$ endif
+$ ! Check for updated diff utility.
+$ if no_gnv .eq. 0
+$ then
+$ new_diff = "gnv$gnu:[usr.bin]gnv$diff.exe"
+$ if f$search(new_diff) .nes. ""
+$ then
+$ ! See if a new port of diff exists.
+$ diff :== $'new_diff'
+$ else
+$ ! Fall back to legacy GNV diff
+$ old_diff = "gnv$gnu:[bin]diff.exe"
+$ if f$search(old_diff) .nes. ""
+$ then
+$ diff :== $'old_diff'
+$ else
+$ no_gnv = 1
+$ endif
+$ endif
+$ endif
+$ endif
+$!
+$if no_gnv
+$then
+$ write sys$output "Could not find an up to date GNV installed!"
+$ help_flag = 1
+$endif
+$!
+$! Find perl 5.18.1 or later.
+$!
+$! look in perl_root:[000000]perl_setup.com
+$ perl_root = f$trnlnm("perl_root")
+$ ! This works with known perl installed from PCSI kits.
+$ if perl_root .nes. ""
+$ then
+$ perl_ver = f$element(1, ".", perl_root)
+$ if f$locate("-", perl_ver) .lt. f$length(perl_ver)
+$ then
+$ no_perl = 0
+$ endif
+$ endif
+$ if no_perl
+$ then
+$! look for sys$common:[perl-*]perl_setup.com
+$ perl_setup = f$search("sys$common:[perl-*]perl_setup.com")
+$ if perl_setup .eqs. ""
+$ then
+$ if gnv_root .nes. ""
+$ then
+$ gnv_device = f$parse(gnv_root,,,"DEVICE")
+$ perl_templ = "[vms$common.perl-*]perl_setup.com"
+$ perl_search = f$parse(perl_templ, gnv_device)
+$ perl_setup = f$search(perl_search)
+$ endif
+$ endif
+$ if perl_setup .nes. ""
+$ then
+$ @'perl_setup'
+$ no_perl = 0
+$ endif
+$ endif
+$!
+$ if no_perl
+$ then
+$ write sys$output "Could not find an up to date Perl installed!"
+$ help_flag = "-help"
+$ endif
+$!
+$!
+$ if help_flag .nes. ""
+$ then
+$ type sys$input
+$DECK
+This is a test script wrapper for the run_make_tests.pl script.
+
+This wrapper makes sure that the DCL symbols and logical names needed to
+run the perl script are in place.
+
+The test wrapper currently requires that the DCL symbols be global symbols.
+Those symbols will be left behind after the procedure is run.
+
+The PERL_ROOT will be set to a compatible perl if such a perl is found and
+is not the default PERL_ROOT:. This setting will persist after the test.
+
+This wrapper should be run with the default set to the base directory
+of the make source.
+
+The HELP parameter will bring up this text and then run the help script
+for the Perl wrapper. Not all options for the perl script have been
+implemented, such as valgrind or specifying the make path or source path.
+
+Running the wrapper script requires:
+ Perl 5.18 or later.
+ PCSI kits available from http://sourceforge.net/projects/vmsperlkit/files/
+
+ GNV 2.1.3 or later. GNV 3.0.1 has not tested with this script.
+ Bash 4.2.47 or later.
+ Coreutils 8.21 or later.
+ http://sourceforge.net/projects/gnv/files/
+ Read before installing:
+ http://sourceforge.net/p/gnv/wiki/InstallingGNVPackages/
+ As updates for other GNV components get posted, those updates should
+ be used.
+
+$EOD
+$ endif
+$!
+$ if no_gnv .or. no_perl then exit 44
+$!
+$!
+$ default = f$environment("DEFAULT")
+$ default_dev = f$element(0, ":", default) + ":"
+$ this = f$environment("PROCEDURE")
+$ on error then goto all_error
+$ set default 'default_dev''f$parse(this,,,"DIRECTORY")'
+$!
+$! Need to make sure that the config-flags.pm exists.
+$ if f$search("config-flags.pm") .eqs. ""
+$ then
+$ @config_flags_pm.com
+$ endif
+$ define/user bin 'default_dev'[-],gnv$gnu:[bin]
+$ define/user decc$filename_unix_noversion enable
+$ define/user decc$filename_unix_report enable
+$ define/user decc$readdir_dropdotnotype enable
+$ flags = ""
+$ if verbose_flag .nes. "" then flags = verbose_flag
+$ if detail_flag .nes. "" then flags = flags + " " + detail_flag
+$ if keep_flag .nes. "" then flags = flags + " " + keep_flag
+$ if usage_flag .nes. "" then flags = flags + " " + usage_flag
+$ if help_flag .nes. "" then flags = flags + " " + help_flag
+$ if debug_flag .nes. "" then flags = flags + " " + debug_flag
+$ flags = f$edit(flags, "TRIM, COMPRESS")
+$ if testname .nes. ""
+$ then
+$ perl run_make_tests.pl "''testname'" 'flags'
+$ else
+$ perl run_make_tests.pl 'flags'
+$ endif
+$all_error:
+$ set default 'default'
+$!
diff --git a/tests/run_make_tests.pl b/tests/run_make_tests.pl
new file mode 100644
index 0000000..916f346
--- /dev/null
+++ b/tests/run_make_tests.pl
@@ -0,0 +1,506 @@
+#!/usr/bin/env perl
+# -*-perl-*-
+
+# Test driver for the Make test suite
+
+# Usage: run_make_tests [testname]
+# [-debug]
+# [-help]
+# [-verbose]
+# [-keep]
+# [-make <make prog>]
+# (and others)
+
+# Copyright (C) 1992-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+%FEATURES = ();
+
+$valgrind = 0; # invoke make with valgrind
+$valgrind_args = '';
+$memcheck_args = '--num-callers=15 --tool=memcheck --leak-check=full --suppressions=guile.supp';
+$massif_args = '--num-callers=15 --tool=massif --alloc-fn=xmalloc --alloc-fn=xcalloc --alloc-fn=xrealloc --alloc-fn=xstrdup --alloc-fn=xstrndup';
+$pure_log = undef;
+
+# The location of the GNU make source directory
+$srcdir = '';
+
+$command_string = '';
+
+$all_tests = 0;
+
+# rmdir broken in some Perls on VMS.
+if ($^O eq 'VMS')
+{
+ require VMS::Filespec;
+ VMS::Filespec->import();
+
+ sub vms_rmdir {
+ my $vms_file = vmspath($_[0]);
+ $vms_file = fileify($vms_file);
+ my $ret = unlink(vmsify($vms_file));
+ return $ret
+ };
+
+ *CORE::GLOBAL::rmdir = \&vms_rmdir;
+}
+
+require "test_driver.pl";
+require "config-flags.pm";
+
+# Some target systems might not have the POSIX module...
+$has_POSIX = eval { require "POSIX.pm" };
+
+#$SIG{INT} = sub { print STDERR "Caught a signal!\n"; die @_; };
+
+sub valid_option
+{
+ local($option) = @_;
+
+ if ($option =~ /^-make([-_]?path)?$/i) {
+ $make_path = shift @argv;
+ if (!-f $make_path) {
+ print "$option $make_path: Not found.\n";
+ exit 0;
+ }
+ return 1;
+ }
+
+ if ($option =~ /^-srcdir$/i) {
+ $srcdir = shift @argv;
+ if (! -f "$srcdir/gnumake.h") {
+ print "$option $srcdir: Not a valid GNU make source directory.\n";
+ exit 0;
+ }
+ return 1;
+ }
+
+ if ($option =~ /^-all([-_]?tests)?$/i) {
+ $all_tests = 1;
+ return 1;
+ }
+
+ if ($option =~ /^-(valgrind|memcheck)$/i) {
+ $valgrind = 1;
+ $valgrind_args = $memcheck_args;
+ return 1;
+ }
+
+ if ($option =~ /^-massif$/i) {
+ $valgrind = 1;
+ $valgrind_args = $massif_args;
+ return 1;
+ }
+
+# This doesn't work--it _should_! Someone badly needs to fix this.
+#
+# elsif ($option =~ /^-work([-_]?dir)?$/)
+# {
+# $workdir = shift @argv;
+# return 1;
+# }
+
+ return 0;
+}
+
+
+# This is an "all-in-one" function. Arguments are as follows:
+#
+# [0] (string): The makefile to be tested. undef means use the last one.
+# [1] (string): Arguments to pass to make.
+# [2] (string): Answer we should get back.
+# [3] (integer): Exit code we expect. A missing code means 0 (success)
+
+$old_makefile = undef;
+
+sub subst_make_string
+{
+ local $_ = shift;
+ $makefile and s/#MAKEFILE#/$makefile/g;
+ s/#MAKEPATH#/$mkpath/g;
+ s/#MAKE#/$make_name/g;
+ s/#PERL#/$perl_name/g;
+ s/#PWD#/$pwd/g;
+ return $_;
+}
+
+sub run_make_test
+{
+ local ($makestring, $options, $answer, $err_code, $timeout) = @_;
+ my @call = caller;
+
+ # If the user specified a makefile string, create a new makefile to contain
+ # it. If the first value is not defined, use the last one (if there is
+ # one).
+
+ if (! defined $makestring) {
+ defined $old_makefile
+ || die "run_make_test(undef) invoked before run_make_test('...')\n";
+ $makefile = $old_makefile;
+ } else {
+ if (! defined($makefile)) {
+ $makefile = &get_tmpfile();
+ }
+
+ # Make sure it ends in a newline and substitute any special tokens.
+ $makestring && $makestring !~ /\n$/s and $makestring .= "\n";
+ $makestring = subst_make_string($makestring);
+
+ # Populate the makefile!
+ open(MAKEFILE, "> $makefile") || die "Failed to open $makefile: $!\n";
+ print MAKEFILE $makestring;
+ close(MAKEFILE) || die "Failed to write $makefile: $!\n";
+ }
+
+ # Do the same processing on $answer as we did on $makestring.
+ if (defined $answer) {
+ $answer && $answer !~ /\n$/s and $answer .= "\n";
+ $answer = subst_make_string($answer);
+ }
+
+ run_make_with_options($makefile, $options, &get_logfile(0),
+ $err_code, $timeout, @call);
+ &compare_output($answer, &get_logfile(1));
+
+ $old_makefile = $makefile;
+ $makefile = undef;
+}
+
+# The old-fashioned way...
+sub run_make_with_options {
+ my ($filename,$options,$logname,$expected_code,$timeout,@call) = @_;
+ @call = caller unless @call;
+ local($code);
+ local($command) = $make_path;
+
+ $expected_code = 0 unless defined($expected_code);
+
+ # Reset to reflect this one test.
+ $test_passed = 1;
+
+ if ($filename) {
+ $command .= " -f $filename";
+ }
+
+ if ($options) {
+ if ($^O eq 'VMS') {
+ # Try to make sure arguments are properly quoted.
+ # This does not handle all cases.
+
+ # VMS uses double quotes instead of single quotes.
+ $options =~ s/\'/\"/g;
+
+ # If the leading quote is inside non-whitespace, then the
+ # quote must be doubled, because it will be enclosed in another
+ # set of quotes.
+ $options =~ s/(\S)(\".*\")/$1\"$2\"/g;
+
+ # Options must be quoted to preserve case if not already quoted.
+ $options =~ s/(\S+)/\"$1\"/g;
+
+ # Special fixup for embedded quotes.
+ $options =~ s/(\"\".+)\"(\s+)\"(.+\"\")/$1$2$3/g;
+
+ $options =~ s/(\A)(?:\"\")(.+)(?:\"\")/$1\"$2\"/g;
+
+ # Special fixup for misc/general4 test.
+ $options =~ s/""\@echo" "cc""/\@echo cc"/;
+ $options =~ s/"\@echo link"""/\@echo link"/;
+
+ # Remove shell escapes expected to be removed by bash
+ if ($options !~ /path=pre/) {
+ $options =~ s/\\//g;
+ }
+
+ # special fixup for options/eval
+ $options =~ s/"--eval=\$\(info" "eval/"--eval=\$\(info eval/;
+
+ print ("Options fixup = -$options-\n") if $debug;
+ }
+ $command .= " $options";
+ }
+
+ $command_string = "";
+ if (@call) {
+ $command_string = "#$call[1]:$call[2]\n";
+ }
+ $command_string .= "$command\n";
+
+ if ($valgrind) {
+ print VALGRIND "\n\nExecuting: $command\n";
+ }
+
+
+ {
+ my $old_timeout = $test_timeout;
+ $timeout and $test_timeout = $timeout;
+
+ # If valgrind is enabled, turn off the timeout check
+ $valgrind and $test_timeout = 0;
+
+ $code = &run_command_with_output($logname,$command);
+ $test_timeout = $old_timeout;
+ }
+
+ # Check to see if we have Purify errors. If so, keep the logfile.
+ # For this to work you need to build with the Purify flag -exit-status=yes
+
+ if ($pure_log && -f $pure_log) {
+ if ($code & 0x7000) {
+ $code &= ~0x7000;
+
+ # If we have a purify log, save it
+ $tn = $pure_testname . ($num_of_logfiles ? ".$num_of_logfiles" : "");
+ print("Renaming purify log file to $tn\n") if $debug;
+ rename($pure_log, "$tn")
+ || die "Can't rename $log to $tn: $!\n";
+ ++$purify_errors;
+ } else {
+ unlink($pure_log);
+ }
+ }
+
+ if ($code != $expected_code) {
+ print "Error running $make_path (expected $expected_code; got $code): $command\n";
+ $test_passed = 0;
+ $runf = &get_runfile;
+ &create_file (&get_runfile, $command_string);
+ # If it's a SIGINT, stop here
+ if ($code & 127) {
+ print STDERR "\nCaught signal ".($code & 127)."!\n";
+ ($code & 127) == 2 and exit($code);
+ }
+ return 0;
+ }
+
+ if ($profile & $vos) {
+ system "add_profile $make_path";
+ }
+
+ return 1;
+}
+
+sub print_usage
+{
+ &print_standard_usage ("run_make_tests",
+ "[-make MAKE_PATHNAME] [-srcdir SRCDIR] [-memcheck] [-massif]",);
+}
+
+sub print_help
+{
+ &print_standard_help (
+ "-make",
+ "\tYou may specify the pathname of the copy of make to run.",
+ "-srcdir",
+ "\tSpecify the make source directory.",
+ "-valgrind",
+ "-memcheck",
+ "\tRun the test suite under valgrind's memcheck tool.",
+ "\tChange the default valgrind args with the VALGRIND_ARGS env var.",
+ "-massif",
+ "\tRun the test suite under valgrind's massif toool.",
+ "\tChange the default valgrind args with the VALGRIND_ARGS env var."
+ );
+}
+
+sub get_this_pwd {
+ $delete_command = 'rm -f';
+ if ($has_POSIX) {
+ $__pwd = POSIX::getcwd();
+ } elsif ($vos) {
+ $delete_command = "delete_file -no_ask";
+ $__pwd = `++(current_dir)`;
+ } else {
+ # No idea... just try using pwd as a last resort.
+ chop ($__pwd = `pwd`);
+ }
+
+ return $__pwd;
+}
+
+sub set_defaults
+{
+ # $profile = 1;
+ $testee = "GNU make";
+ $make_path = "make";
+ $tmpfilesuffix = "mk";
+ $pwd = &get_this_pwd;
+}
+
+sub set_more_defaults
+{
+ local($string);
+ local($index);
+
+ # find the type of the port. We do this up front to have a single
+ # point of change if it needs to be tweaked.
+ #
+ # This is probably not specific enough.
+ #
+ if ($osname =~ /Windows/i || $osname =~ /MINGW32/i || $osname =~ /CYGWIN_NT/i) {
+ $port_type = 'W32';
+ }
+ # Bleah, the osname is so variable on DOS. This kind of bites.
+ # Well, as far as I can tell if we check for some text at the
+ # beginning of the line with either no spaces or a single space, then
+ # a D, then either "OS", "os", or "ev" and a space. That should
+ # match and be pretty specific.
+ elsif ($osname =~ /^([^ ]*|[^ ]* [^ ]*)D(OS|os|ev) /) {
+ $port_type = 'DOS';
+ }
+ # Check for OS/2
+ elsif ($osname =~ m%OS/2%) {
+ $port_type = 'OS/2';
+ }
+
+ # VMS has a GNV Unix mode or a DCL mode.
+ # The SHELL environment variable should not be defined in VMS-DCL mode.
+ elsif ($osname eq 'VMS' && !defined $ENV{"SHELL"}) {
+ $port_type = 'VMS-DCL';
+ }
+ # Everything else, right now, is UNIX. Note that we should integrate
+ # the VOS support into this as well and get rid of $vos; we'll do
+ # that next time.
+ else {
+ $port_type = 'UNIX';
+ }
+
+ # On DOS/Windows system the filesystem apparently can't track
+ # timestamps with second granularity (!!). Change the sleep time
+ # needed to force a file to be considered "old".
+ $wtime = $port_type eq 'UNIX' ? 1 : $port_type eq 'OS/2' ? 2 : 4;
+
+ print "Port type: $port_type\n" if $debug;
+ print "Make path: $make_path\n" if $debug;
+
+ # Find the full pathname of Make. For DOS systems this is more
+ # complicated, so we ask make itself.
+ if ($osname eq 'VMS') {
+ $port_type = 'VMS-DCL' unless defined $ENV{"SHELL"};
+ # On VMS pre-setup make to be found with simply 'make'.
+ $make_path = 'make';
+ } else {
+ my $mk = `sh -c 'echo "all:;\@echo \\\$(MAKE)" | $make_path -f-'`;
+ chop $mk;
+ $mk or die "FATAL ERROR: Cannot determine the value of \$(MAKE):\n
+'echo \"all:;\@echo \\\$(MAKE)\" | $make_path -f-' failed!\n";
+ $make_path = $mk;
+ }
+ print "Make\t= '$make_path'\n" if $debug;
+
+ my $redir2 = '2> /dev/null';
+ $redir2 = '' if os_name eq 'VMS';
+ $string = `$make_path -v -f /dev/null $redir2`;
+
+ $string =~ /^(GNU Make [^,\n]*)/;
+ $testee_version = "$1\n";
+
+ my $redir = '2>&1';
+ $redir = '' if os_name eq 'VMS';
+ $string = `sh -c "$make_path -f /dev/null $redir"`;
+ if ($string =~ /(.*): \*\*\* No targets\. Stop\./) {
+ $make_name = $1;
+ }
+ else {
+ $make_path =~ /^(?:.*$pathsep)?(.+)$/;
+ $make_name = $1;
+ }
+
+ # prepend pwd if this is a relative path (ie, does not
+ # start with a slash, but contains one). Thanks for the
+ # clue, Roland.
+
+ if (index ($make_path, ":") != 1 && index ($make_path, "/") > 0)
+ {
+ $mkpath = "$pwd$pathsep$make_path";
+ }
+ else
+ {
+ $mkpath = $make_path;
+ }
+
+ # If srcdir wasn't provided on the command line, see if the
+ # location of the make program gives us a clue. Don't fail if not;
+ # we'll assume it's been installed into /usr/include or wherever.
+ if (! $srcdir) {
+ $make_path =~ /^(.*$pathsep)?/;
+ my $d = $1 || '../';
+ -f "${d}gnumake.h" and $srcdir = $d;
+ }
+
+ # Not with the make program, so see if we can get it out of the makefile
+ if (! $srcdir && open(MF, "< ../Makefile")) {
+ local $/ = undef;
+ $_ = <MF>;
+ close(MF);
+ /^abs_srcdir\s*=\s*(.*?)\s*$/m;
+ -f "$1/gnumake.h" and $srcdir = $1;
+ }
+
+ # Get Purify log info--if any.
+
+ if (exists $ENV{PURIFYOPTIONS}
+ && $ENV{PURIFYOPTIONS} =~ /.*-logfile=([^ ]+)/) {
+ $pure_log = $1 || '';
+ $pure_log =~ s/%v/$make_name/;
+ $purify_errors = 0;
+ }
+
+ $string = `sh -c "$make_path -j 2 -f /dev/null $redir"`;
+ if ($string =~ /not supported/) {
+ $parallel_jobs = 0;
+ }
+ else {
+ $parallel_jobs = 1;
+ }
+
+ %FEATURES = map { $_ => 1 } split /\s+/, `sh -c "echo '\\\$(info \\\$(.FEATURES))' | $make_path -f- 2>/dev/null"`;
+
+ # Set up for valgrind, if requested.
+
+ $make_command = $make_path;
+
+ if ($valgrind) {
+ my $args = $valgrind_args;
+ open(VALGRIND, "> valgrind.out")
+ || die "Cannot open valgrind.out: $!\n";
+ # -q --leak-check=yes
+ exists $ENV{VALGRIND_ARGS} and $args = $ENV{VALGRIND_ARGS};
+ $make_path = "valgrind --log-fd=".fileno(VALGRIND)." $args $make_path";
+ # F_SETFD is 2
+ fcntl(VALGRIND, 2, 0) or die "fcntl(setfd) failed: $!\n";
+ system("echo Starting on `date` 1>&".fileno(VALGRIND));
+ print "Enabled valgrind support.\n";
+ }
+}
+
+sub setup_for_test
+{
+ $makefile = &get_tmpfile;
+ if (-f $makefile) {
+ unlink $makefile;
+ }
+
+ # Get rid of any Purify logs.
+ if ($pure_log) {
+ ($pure_testname = $testname) =~ tr,/,_,;
+ $pure_testname = "$pure_log.$pure_testname";
+ system("rm -f $pure_testname*");
+ print("Purify testfiles are: $pure_testname*\n") if $debug;
+ }
+}
+
+exit !&toplevel;
diff --git a/tests/scripts/features/archives b/tests/scripts/features/archives
new file mode 100644
index 0000000..a064dd4
--- /dev/null
+++ b/tests/scripts/features/archives
@@ -0,0 +1,213 @@
+# -*-mode: perl-*-
+
+$description = "Test GNU make's archive management features.";
+
+$details = "\
+This only works on systems that support it.";
+
+# If this instance of make doesn't support archives, skip it
+exists $FEATURES{archives} or return -1;
+
+# Create some .o files to work with
+if ($osname eq 'VMS') {
+ use Cwd;
+ my $pwd = getcwd;
+ # VMS AR needs real object files at this time.
+ foreach $afile ('a1', 'a2', 'a3') {
+ # Use non-standard extension to prevent implicit rules from recreating
+ # objects when the test tampers with the timestamp.
+ 1 while unlink "$afile.c1";
+ 1 while unlink "$afile.o";
+ open (MYFILE, ">$afile.c1");
+ print MYFILE "int $afile(void) {return 1;}\n";
+ close MYFILE;
+ system("cc $afile.c1 /object=$afile.o");
+ }
+} else {
+ utouch(-60, qw(a1.o a2.o a3.o));
+}
+
+my $ar = $CONFIG_FLAGS{AR};
+
+# Fallback if configure did not find AR, such as VMS
+# which does not run configure.
+$ar = 'ar' if $ar eq '';
+
+my $redir = '2>&1';
+$redir = '' if $osname eq 'VMS';
+
+my $arflags = 'rv';
+my $arvar = "AR=$ar";
+
+# Newer versions of binutils can be built with --enable-deterministic-archives
+# which forces all timestamps (among other things) to always be 0, defeating
+# GNU make's archive support. See if ar supports the U option to disable it.
+unlink('libxx.a');
+$_ = `$ar U$arflags libxx.a a1.o $redir`;
+if ($? == 0) {
+ $arflags = 'Urv';
+ $arvar = "$arvar ARFLAGS=$arflags";
+}
+
+# Some versions of ar print different things on creation. Find out.
+unlink('libxx.a');
+my $created = `$ar $arflags libxx.a a1.o $redir`;
+
+# Some versions of ar print different things on add. Find out.
+my $add = `$ar $arflags libxx.a a2.o $redir`;
+$add =~ s/a2\.o/#OBJECT#/g;
+
+# Some versions of ar print different things on replacement. Find out.
+my $repl = `$ar $arflags libxx.a a2.o $redir`;
+$repl =~ s/a2\.o/#OBJECT#/g;
+
+unlink('libxx.a');
+
+# Very simple
+my $answer = "$ar $arflags libxx.a a1.o\n$created";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a1.o';
+}
+run_make_test('all: libxx.a(a1.o)', $arvar, $answer);
+
+# Multiple .o's. Add a new one to the existing library
+($_ = $add) =~ s/#OBJECT#/a2.o/g;
+
+$answer = "$ar $arflags libxx.a a2.o\n$_";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a2.o';
+}
+run_make_test('all: libxx.a(a1.o a2.o)', $arvar, $answer);
+
+# Touch one of the .o's so it's rebuilt
+if ($port_type eq 'VMS-DCL') {
+ # utouch is not changing what VMS library compare is testing for.
+ # So do a real change by regenerating the file.
+ 1 while unlink('a1.o');
+ # Later time stamp than last insertion.
+ sleep(2);
+ system('cc a1.c1 /object=a1.o');
+ # Next insertion will have a later timestamp.
+ sleep(2);
+} else {
+ utouch(-40, 'a1.o');
+}
+
+($_ = $repl) =~ s/#OBJECT#/a1.o/g;
+$answer = "$ar $arflags libxx.a a1.o\n$_";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a1.o';
+}
+run_make_test(undef, $arvar, $answer);
+
+# Use wildcards
+$answer = "#MAKE#: Nothing to be done for 'all'.\n";
+run_make_test('all: libxx.a(*.o)', $arvar, $answer);
+
+# Touch one of the .o's so it's rebuilt
+if ($port_type eq 'VMS-DCL') {
+ # utouch is not changing what VMS library compare is testing for.
+ # So do a real change by regenerating the file.
+ 1 while unlink('a1.o');
+ # Make timestamp later than last insertion.
+ sleep(2);
+ system('cc a1.c1 /object=a1.o');
+} else {
+ utouch(-30, 'a1.o');
+}
+($_ = $repl) =~ s/#OBJECT#/a1.o/g;
+$answer = "$ar $arflags libxx.a a1.o\n$_";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a1.o';
+}
+run_make_test(undef, $arvar, $answer);
+
+# Use both wildcards and simple names
+if ($port_type eq 'VMS-DCL') {
+ # utouch is not changing what VMS library compare is testing for.
+ # So do a real change by regenerating the file.
+ 1 while unlink('a2.o');
+ sleep(2);
+ system('cc a2.c1 /object=a2.o');
+} else {
+ utouch(-50, 'a2.o');
+}
+($_ = $add) =~ s/#OBJECT#/a3.o/g;
+$_ .= "$ar $arflags libxx.a a2.o\n";
+($_ .= $repl) =~ s/#OBJECT#/a2.o/g;
+$answer = "$ar $arflags libxx.a a3.o\n$_";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a3.o';
+}
+
+run_make_test('all: libxx.a(a3.o *.o)', $arvar, $answer);
+
+# Check whitespace handling
+if ($port_type eq 'VMS-DCL') {
+ # utouch is not changing what VMS library compare is testing for.
+ # So do a real change by regenerating the file.
+ 1 while unlink('a2.o');
+ sleep(2);
+ system('cc a2.c1 /object=a2.o');
+} else {
+ utouch(-40, 'a2.o');
+}
+($_ = $repl) =~ s/#OBJECT#/a2.o/g;
+$answer = "$ar $arflags libxx.a a2.o\n$_";
+if ($port_type eq 'VMS-DCL') {
+ $answer = 'library /replace libxx.a a2.o';
+}
+run_make_test('all: libxx.a( a3.o *.o )', $arvar, $answer);
+
+rmfiles(qw(a1.c1 a2.c1 a3.c1 a1.o a2.o a3.o libxx.a));
+
+# Check non-archive targets
+# See Savannah bug #37878
+$mk_string = q!
+all: foo(bar).baz
+foo(bar).baz: ; @echo '$@'
+!;
+
+if ($port_type eq 'VMS-DCL') {
+ $mk_string =~ s/echo/write sys\$\$output/;
+ $mk_string =~ s/\'/\"/g;
+}
+run_make_test($mk_string, $arvar, "foo(bar).baz\n");
+
+# Check renaming of archive targets.
+# See Savannah bug #38442
+
+mkdir('artest', 0777);
+touch('foo.vhd');
+$mk_string = q!
+DIR = artest
+vpath % $(DIR)
+default: lib(foo)
+(%): %.vhd ; @cd $(DIR) && touch $(*F) && $(AR) $(ARFLAGS) $@ $(*F) >/dev/null 2>&1 && rm $(*F)
+.PHONY: default
+!;
+if ($port_type eq 'VMS-DCL') {
+ $mk_string =~ s#= artest#= sys\$\$disk:\[.artest\]#;
+ $mk_string =~ s#lib\(foo\)#lib.tlb\(foo\)#;
+ $mk_string =~ s#; \@cd#; pipe SET DEFAULT#;
+ $mk_string =~
+ s#touch \$\(\*F\)#touch \$\(\*F\) && library/create/text sys\$\$disk:\$\@#;
+ $mk_string =~
+ s#library#if f\$\$search(\"\$\@\") \.eqs\. \"\" then library#;
+ # VMS needs special handling for null extension
+ $mk_string =~ s#\@ \$\(\*F\)#\@ \$\(\*F\)\.#;
+ $mk_string =~ s#>/dev/null 2>&1 ##;
+}
+run_make_test($mk_string, $arvar, "");
+
+run_make_test(undef, $arvar, "#MAKE#: Nothing to be done for 'default'.\n");
+
+unlink('foo.vhd');
+if ($osname eq 'VMS') {
+ remove_directory_tree("$pwd/artest");
+} else {
+ remove_directory_tree('artest');
+}
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/comments b/tests/scripts/features/comments
new file mode 100644
index 0000000..9257955
--- /dev/null
+++ b/tests/scripts/features/comments
@@ -0,0 +1,35 @@
+$description = "The following test creates a makefile to test comments\n"
+ ."and comment continuation to the next line using a \n"
+ ."backslash within makefiles.";
+
+$details = "To test comments within a makefile, a semi-colon was placed \n"
+ ."after a comment was started. This should not be reported as\n"
+ ."an error since it is within a comment. We then continue the \n"
+ ."comment to the next line using a backslash. To test whether\n"
+ ."the comment really continued, we place an echo command with some\n"
+ ."text on the line which should never execute since it should be \n"
+ ."within a comment\n";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<\EOF;
+# Test comment vs semicolon parsing and line continuation
+target: # this ; is just a comment \
+ @echo This is within a comment.
+ @echo There should be no errors for this makefile.
+EOF
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "There should be no errors for this makefile.\n";
+
+# COMPARE RESULTS
+
+&compare_output($answer,&get_logfile(1))
diff --git a/tests/scripts/features/conditionals b/tests/scripts/features/conditionals
new file mode 100644
index 0000000..78344b9
--- /dev/null
+++ b/tests/scripts/features/conditionals
@@ -0,0 +1,162 @@
+# -*-perl-*-
+$description = "Check GNU make conditionals.";
+
+$details = "Attempt various different flavors of GNU make conditionals.";
+
+run_make_test('
+arg1 = first
+arg2 = second
+arg3 = third
+arg4 = cc
+arg5 = second
+
+all:
+ifeq ($(arg1),$(arg2))
+ @echo arg1 equals arg2
+else
+ @echo arg1 NOT equal arg2
+endif
+
+ifeq \'$(arg2)\' "$(arg5)"
+ @echo arg2 equals arg5
+else
+ @echo arg2 NOT equal arg5
+endif
+
+ifneq \'$(arg3)\' \'$(arg4)\'
+ @echo arg3 NOT equal arg4
+else
+ @echo arg3 equal arg4
+endif
+
+ifndef undefined
+ @echo variable is undefined
+else
+ @echo variable undefined is defined
+endif
+ifdef arg4
+ @echo arg4 is defined
+else
+ @echo arg4 is NOT defined
+endif',
+ '',
+ 'arg1 NOT equal arg2
+arg2 equals arg5
+arg3 NOT equal arg4
+variable is undefined
+arg4 is defined');
+
+
+# Test expansion of variables inside ifdef.
+
+run_make_test('
+foo = 1
+
+FOO = foo
+F = f
+
+DEF = no
+DEF2 = no
+
+ifdef $(FOO)
+DEF = yes
+endif
+
+ifdef $(F)oo
+DEF2 = yes
+endif
+
+
+DEF3 = no
+FUNC = $1
+ifdef $(call FUNC,DEF)3
+ DEF3 = yes
+endif
+
+all:; @echo DEF=$(DEF) DEF2=$(DEF2) DEF3=$(DEF3)',
+ '',
+ 'DEF=yes DEF2=yes DEF3=yes');
+
+
+# Test all the different "else if..." constructs
+
+run_make_test('
+arg1 = first
+arg2 = second
+arg3 = third
+arg4 = cc
+arg5 = fifth
+
+result =
+
+ifeq ($(arg1),$(arg2))
+ result += arg1 equals arg2
+else ifeq \'$(arg2)\' "$(arg5)"
+ result += arg2 equals arg5
+else ifneq \'$(arg3)\' \'$(arg3)\'
+ result += arg3 NOT equal arg4
+else ifndef arg5
+ result += variable is undefined
+else ifdef undefined
+ result += arg4 is defined
+else
+ result += success
+endif
+
+
+all: ; @echo $(result)',
+ '',
+ 'success');
+
+
+# Test some random "else if..." construct nesting
+
+run_make_test('
+arg1 = first
+arg2 = second
+arg3 = third
+arg4 = cc
+arg5 = second
+
+ifeq ($(arg1),$(arg2))
+ $(info failed 1)
+else ifeq \'$(arg2)\' "$(arg2)"
+ ifdef undefined
+ $(info failed 2)
+ else
+ $(info success)
+ endif
+else ifneq \'$(arg3)\' \'$(arg3)\'
+ $(info failed 3)
+else ifdef arg5
+ $(info failed 4)
+else ifdef undefined
+ $(info failed 5)
+else
+ $(info failed 6)
+endif
+
+.PHONY: all
+all: ; @:',
+ '',
+ 'success');
+
+# SV 47960 : ensure variable assignments in non-taken legs don't cause problems
+run_make_test('
+ifneq ($(FOO),yes)
+target:
+else
+BAR = bar
+target:
+endif
+ @echo one
+',
+ '', "one\n");
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/default_names b/tests/scripts/features/default_names
new file mode 100644
index 0000000..2e83880
--- /dev/null
+++ b/tests/scripts/features/default_names
@@ -0,0 +1,44 @@
+# -*-perl-*-
+
+$description = "This script tests to make sure that Make looks for
+default makefiles in the correct order (GNUmakefile,makefile,Makefile)";
+
+# Create a makefile called "GNUmakefile"
+$makefile = "GNUmakefile";
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE "FIRST: ; \@echo It chose GNUmakefile\n";
+close(MAKEFILE);
+
+# Create another makefile called "makefile"
+open(MAKEFILE,"> makefile");
+print MAKEFILE "SECOND: ; \@echo It chose makefile\n";
+close(MAKEFILE);
+
+# DOS/WIN32/MacOSX platforms are case-insensitive / case-preserving, so
+# Makefile is the same file as makefile. Just test what we can here.
+
+my $case_sensitive = 0;
+if (! -f 'Makefile') {
+ # Create another makefile called "Makefile"
+ $case_sensitive = 1;
+ open(MAKEFILE,"> Makefile");
+ print MAKEFILE "THIRD: ; \@echo It chose Makefile\n";
+ close(MAKEFILE);
+}
+
+run_make_with_options("","",&get_logfile);
+compare_output("It chose GNUmakefile\n",&get_logfile(1));
+unlink($makefile);
+
+run_make_with_options("","",&get_logfile);
+compare_output("It chose makefile\n",&get_logfile(1));
+unlink("makefile");
+
+if ($case_sensitive) {
+ run_make_with_options("","",&get_logfile);
+ compare_output("It chose Makefile\n",&get_logfile(1));
+ unlink("Makefile");
+}
+
+1;
diff --git a/tests/scripts/features/double_colon b/tests/scripts/features/double_colon
new file mode 100644
index 0000000..58f126f
--- /dev/null
+++ b/tests/scripts/features/double_colon
@@ -0,0 +1,220 @@
+# -*-perl-*-
+$description = "Test handling of double-colon rules.";
+
+$details = "\
+We test these features:
+
+ - Multiple commands for the same (double-colon) target
+ - Different prerequisites for targets: only out-of-date
+ ones are rebuilt.
+ - Double-colon targets that aren't the goal target.
+
+Then we do the same thing for parallel builds: double-colon
+targets should always be built serially.";
+
+# The Contents of the MAKEFILE ...
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+
+all: baz
+
+foo:: f1.h ; @echo foo FIRST
+foo:: f2.h ; @echo foo SECOND
+
+bar:: ; @echo aaa; sleep 1; echo aaa done
+bar:: ; @echo bbb
+
+baz:: ; @echo aaa
+baz:: ; @echo bbb
+
+biz:: ; @echo aaa
+biz:: two ; @echo bbb
+
+two: ; @echo two
+
+f1.h f2.h: ; @echo $@
+
+d :: ; @echo ok
+d :: d ; @echo oops
+
+EOF
+
+close(MAKEFILE);
+
+# TEST 0: A simple double-colon rule that isn't the goal target.
+
+&run_make_with_options($makefile, "all", &get_logfile, 0);
+$answer = "aaa\nbbb\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 1: As above, in parallel
+
+if ($parallel_jobs) {
+ &run_make_with_options($makefile, "-j10 all", &get_logfile, 0);
+ $answer = "aaa\nbbb\n";
+ &compare_output($answer, &get_logfile(1));
+}
+
+# TEST 2: A simple double-colon rule that is the goal target
+
+&run_make_with_options($makefile, "bar", &get_logfile, 0);
+$answer = "aaa\naaa done\nbbb\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 3: As above, in parallel
+
+if ($parallel_jobs) {
+ &run_make_with_options($makefile, "-j10 bar", &get_logfile, 0);
+ $answer = "aaa\naaa done\nbbb\n";
+ &compare_output($answer, &get_logfile(1));
+}
+
+# TEST 4: Each double-colon rule is supposed to be run individually
+
+&utouch(-5, 'f2.h');
+&touch('foo');
+
+&run_make_with_options($makefile, "foo", &get_logfile, 0);
+$answer = "f1.h\nfoo FIRST\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 5: Again, in parallel.
+
+if ($parallel_jobs) {
+ &run_make_with_options($makefile, "-j10 foo", &get_logfile, 0);
+ $answer = "f1.h\nfoo FIRST\n";
+ &compare_output($answer, &get_logfile(1));
+}
+
+# TEST 6: Each double-colon rule is supposed to be run individually
+
+&utouch(-5, 'f1.h');
+unlink('f2.h');
+&touch('foo');
+
+&run_make_with_options($makefile, "foo", &get_logfile, 0);
+$answer = "f2.h\nfoo SECOND\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 7: Again, in parallel.
+
+if ($parallel_jobs) {
+ &run_make_with_options($makefile, "-j10 foo", &get_logfile, 0);
+ $answer = "f2.h\nfoo SECOND\n";
+ &compare_output($answer, &get_logfile(1));
+}
+
+# TEST 8: Test circular dependency check; PR/1671
+
+&run_make_with_options($makefile, "d", &get_logfile, 0);
+$answer = "ok\n$make_name: Circular d <- d dependency dropped.\noops\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 8: I don't grok why this is different than the above, but it is...
+#
+# Hmm... further testing indicates this might be timing-dependent?
+#
+#if ($parallel_jobs) {
+# &run_make_with_options($makefile, "-j10 biz", &get_logfile, 0);
+# $answer = "aaa\ntwo\nbbb\n";
+# &compare_output($answer, &get_logfile(1));
+#}
+
+unlink('foo','f1.h','f2.h');
+
+
+# TEST 9: make sure all rules in s double colon family get executed
+# (Savannah bug #14334).
+#
+
+&touch('one');
+&touch('two');
+
+run_make_test('
+.PHONY: all
+all: result
+
+result:: one
+ @echo $^ >>$@
+ @echo $^
+
+result:: two
+ @echo $^ >>$@
+ @echo $^
+
+',
+'',
+'one
+two');
+
+unlink('result','one','two');
+
+# TEST 10: SV 33399 : check for proper backslash handling
+
+run_make_test('
+a\ xb :: ; @echo one
+a\ xb :: ; @echo two
+',
+ '', "one\ntwo\n");
+
+# Test 11: SV 44742 : All double-colon rules should be run in parallel build.
+
+run_make_test('result :: 01
+ @echo update
+ @touch $@
+result :: 02
+ @echo update
+ @touch $@
+result :: 03
+ @echo update
+ @touch $@
+result :: 04
+ @echo update
+ @touch $@
+result :: 05
+ @echo update
+ @touch $@
+01 02 03 04 05:
+ @touch 01 02 03 04 05
+',
+ '-j10 result', "update\nupdate\nupdate\nupdate\nupdate\n");
+
+unlink('result', '01', '02', '03', '04', '05');
+
+# Test 12: SV 44742 : Double-colon rules with parallelism
+
+run_make_test('
+root: all
+ echo root
+all::
+ echo all_one
+all:: 3
+ echo all_two
+%:
+ sleep $*
+',
+ '-rs -j2 1 2 root', "all_one\nall_two\nroot\n");
+
+# SV 47995 : Parallel double-colon rules with FORCE
+
+run_make_test('
+all:: ; @echo one
+
+all:: joe ; @echo four
+
+joe: FORCE ; touch joe-is-forced
+
+FORCE:
+',
+ '-j5', "one\ntouch joe-is-forced\nfour\n");
+
+unlink('joe-is-forced');
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/echoing b/tests/scripts/features/echoing
new file mode 100644
index 0000000..40debf5
--- /dev/null
+++ b/tests/scripts/features/echoing
@@ -0,0 +1,64 @@
+# -*-perl-*-
+$description = "The following test creates a makefile to test command
+echoing. It tests that when a command line starts with
+a '\@', the echoing of that line is suppressed. It also
+tests the -n option which tells make to ONLY echo the
+commands and no execution happens. In this case, even
+the commands with '\@' are printed. Lastly, it tests the
+-s flag which tells make to prevent all echoing, as if
+all commands started with a '\@'.";
+
+$details = "This test is similar to the 'clean' test except that a '\@' has
+been placed in front of the delete command line. Four tests
+are run here. First, make is run normally and the first echo
+command should be executed. In this case there is no '\@' so
+we should expect make to display the command AND display the
+echoed message. Secondly, make is run with the clean target,
+but since there is a '\@' at the beginning of the command, we
+expect no output; just the deletion of a file which we check
+for. Third, we give the clean target again except this time
+we give make the -n option. We now expect the command to be
+displayed but not to be executed. In this case we need only
+to check the output since an error message would be displayed
+if it actually tried to run the delete command again and the
+file didn't exist. Lastly, we run the first test again with
+the -s option and check that make did not echo the echo
+command before printing the message.\n";
+
+$example = "EXAMPLE_FILE";
+
+touch($example);
+
+# TEST #1
+# -------
+
+run_make_test("
+all:
+\techo This makefile did not clean the dir... good
+clean:
+\t\@$delete_command $example\n",
+ '', 'echo This makefile did not clean the dir... good
+This makefile did not clean the dir... good');
+
+# TEST #2
+# -------
+
+run_make_test(undef, 'clean', '');
+if (-f $example) {
+ $test_passed = 0;
+ unlink($example);
+}
+
+# TEST #3
+# -------
+
+run_make_test(undef, '-n clean', "$delete_command $example\n");
+
+
+# TEST #4
+# -------
+
+run_make_test(undef, '-s', "This makefile did not clean the dir... good\n");
+
+
+1;
diff --git a/tests/scripts/features/errors b/tests/scripts/features/errors
new file mode 100644
index 0000000..ebd4383
--- /dev/null
+++ b/tests/scripts/features/errors
@@ -0,0 +1,107 @@
+# -*-perl-*-
+
+$description = "The following tests the -i option and the '-' in front of \n"
+ ."commands to test that make ignores errors in these commands\n"
+ ."and continues processing.";
+
+$details = "This test runs two makes. The first runs on a target with a \n"
+ ."command that has a '-' in front of it (and a command that is \n"
+ ."intended to fail) and then a delete command after that is \n"
+ ."intended to succeed. If make ignores the failure of the first\n"
+ ."command as it is supposed to, then the second command should \n"
+ ."delete a file and this is what we check for. The second make\n"
+ ."that is run in this test is identical except that the make \n"
+ ."command is given with the -i option instead of the '-' in \n"
+ ."front of the command. They should run the same. ";
+
+if ($vos)
+{
+ $rm_command = "delete_file";
+}
+else
+{
+ $rm_command = "rm";
+}
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "clean:\n"
+ ."\t-$rm_command cleanit\n"
+ ."\t$rm_command foo\n"
+ ."clean2: \n"
+ ."\t$rm_command cleanit\n"
+ ."\t$rm_command foo\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch("foo");
+
+unlink("cleanit");
+$cleanit_error = `sh -c "$rm_command cleanit 2>&1"`;
+chomp $cleanit_error;
+$delete_error_code = $? >> 8;
+
+# TEST #1
+# -------
+
+$answer = "$rm_command cleanit
+$cleanit_error
+$make_name: [$makefile:2: clean] Error $delete_error_code (ignored)
+$rm_command foo\n";
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# If make acted as planned, it should ignore the error from the first
+# command in the target and execute the second which deletes the file "foo"
+# This file, therefore, should not exist if the test PASSES.
+if (-f "foo") {
+ $test_passed = 0;
+}
+
+# The output for this on VOS is too hard to replicate, so we only check it
+# on unix.
+if (!$vos)
+{
+ &compare_output($answer,&get_logfile(1));
+}
+
+
+&touch("foo");
+
+# TEST #2
+# -------
+
+$answer = "$rm_command cleanit
+$cleanit_error
+$make_name: [$makefile:5: clean2] Error $delete_error_code (ignored)
+$rm_command foo\n";
+
+&run_make_with_options($makefile,"clean2 -i",&get_logfile);
+
+if (-f "foo") {
+ $test_passed = 0;
+}
+
+if (!$vos) {
+ &compare_output($answer,&get_logfile(1));
+}
+
+# Test that error line offset works
+
+run_make_test(q!
+all:
+ @echo hi
+ @echo there
+ @exit 1
+!,
+ '', "hi\nthere\n#MAKE#: *** [#MAKEFILE#:5: all] Error 1", 512);
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/escape b/tests/scripts/features/escape
new file mode 100644
index 0000000..bf069df
--- /dev/null
+++ b/tests/scripts/features/escape
@@ -0,0 +1,74 @@
+# -*-perl-*-
+$description = "Test various types of escaping in makefiles.";
+
+$details = "\
+Make sure that escaping of ':' works in target names.
+Make sure escaping of whitespace works in target names.
+Make sure that escaping of '#' works.
+Make sure that backslash before non-special characters are kept.";
+
+
+# TEST 1
+
+run_make_test('
+$(path)foo : ; @echo "touch ($@)"
+
+foo\ bar: ; @echo "touch ($@)"
+
+sharp: foo\#bar.ext
+foo\#bar.ext: ; @echo "foo#bar.ext = ($@)"',
+ '',
+ 'touch (foo)');
+
+# TEST 2: This one should fail, since the ":" is unquoted.
+
+run_make_test(undef,
+ 'path=pre:',
+ "#MAKEFILE#:2: *** target pattern contains no '%'. Stop.",
+ 512);
+
+# TEST 3: This one should work, since we escape the ":".
+
+run_make_test(undef,
+ "'path=pre\\:'",
+ 'touch (pre:foo)');
+
+# TEST 4: This one should fail, since the escape char is escaped.
+
+run_make_test(undef,
+ "'path=pre\\\\:'",
+ "#MAKEFILE#:2: *** target pattern contains no '%'. Stop.",
+ 512);
+
+# TEST 5: This one should work
+
+run_make_test(undef,
+ "'foo bar'",
+ 'touch (foo bar)');
+
+# TEST 6: Test escaped comments
+
+run_make_test(undef,
+ 'sharp',
+ 'foo#bar.ext = (foo#bar.ext)');
+
+# Test escaped colons in prerequisites
+# Quoting of backslashes in q!! is kind of messy.
+# Solaris sh does not properly handle backslashes even in '' so just
+# check the output make prints, not what the shell interprets.
+run_make_test(q!
+foo: foo\\:bar foo\\\\\\:bar foo\\\\\\\\\\:bar
+foo foo\\:bar foo\\\\\\:bar foo\\\\\\\\\\:bar: ; : '$@'
+!,
+ '', ": 'foo:bar'\n: 'foo\\:bar'\n: 'foo\\\\:bar'\n: 'foo'\n");
+
+# Test backslash before non-special chars: should be kept as-is
+
+run_make_test(q!
+all: ..\foo
+.DEFAULT: ; : '$@'
+!,
+ '', ": '..\\foo'\n");
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/export b/tests/scripts/features/export
new file mode 100644
index 0000000..81bff0c
--- /dev/null
+++ b/tests/scripts/features/export
@@ -0,0 +1,186 @@
+# -*-perl-*-
+$description = "Check GNU make export/unexport commands.";
+
+$details = "";
+
+# The test driver cleans out our environment for us so we don't have to worry
+# about that here.
+
+&run_make_test('
+FOO = foo
+BAR = bar
+BOZ = boz
+
+export BAZ = baz
+export BOZ
+
+BITZ = bitz
+BOTZ = botz
+
+export BITZ BOTZ
+unexport BOTZ
+
+ifdef EXPORT_ALL
+export
+endif
+
+ifdef UNEXPORT_ALL
+unexport
+endif
+
+ifdef EXPORT_ALL_PSEUDO
+.EXPORT_ALL_VARIABLES:
+endif
+
+all:
+ @echo "FOO=$(FOO) BAR=$(BAR) BAZ=$(BAZ) BOZ=$(BOZ) BITZ=$(BITZ) BOTZ=$(BOTZ)"
+ @echo "FOO=$$FOO BAR=$$BAR BAZ=$$BAZ BOZ=$$BOZ BITZ=$$BITZ BOTZ=$$BOTZ"
+',
+ '', "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO= BAR= BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 1: make sure vars inherited from the parent are exported
+
+$extraENV{FOO} = 1;
+
+&run_make_test(undef, '', "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO=foo BAR= BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 2: global export. Explicit unexport takes precedence.
+
+run_make_test(undef, "EXPORT_ALL=1" ,
+ "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 3: global unexport. Explicit export takes precedence.
+
+&run_make_test(undef, "UNEXPORT_ALL=1",
+ "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO= BAR= BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 4: both: in the above makefile the unexport comes last so that rules.
+
+&run_make_test(undef, "EXPORT_ALL=1 UNEXPORT_ALL=1",
+ "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO= BAR= BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 5: test the pseudo target.
+
+&run_make_test(undef, "EXPORT_ALL_PSEUDO=1",
+ "FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=botz
+FOO=foo BAR=bar BAZ=baz BOZ=boz BITZ=bitz BOTZ=\n");
+
+# TEST 6: Test the expansion of variables inside export
+
+&run_make_test('
+foo = f-ok
+bar = b-ok
+
+FOO = foo
+F = f
+
+BAR = bar
+B = b
+
+export $(FOO)
+export $(B)ar
+
+all:
+ @echo foo=$(foo) bar=$(bar)
+ @echo foo=$$foo bar=$$bar
+',
+ "", "foo=f-ok bar=b-ok\nfoo=f-ok bar=b-ok\n");
+
+# TEST 7: Test the expansion of variables inside unexport
+
+&run_make_test('
+foo = f-ok
+bar = b-ok
+
+FOO = foo
+F = f
+
+BAR = bar
+B = b
+
+export foo bar
+
+unexport $(FOO)
+unexport $(B)ar
+
+all:
+ @echo foo=$(foo) bar=$(bar)
+ @echo foo=$$foo bar=$$bar
+',
+ '', "foo=f-ok bar=b-ok\nfoo= bar=\n");
+
+# TEST 7: Test exporting multiple variables on the same line
+
+&run_make_test('
+A = a
+B = b
+C = c
+D = d
+E = e
+F = f
+G = g
+H = h
+I = i
+J = j
+
+SOME = A B C
+
+export F G H I J
+
+export D E $(SOME)
+
+all: ; @echo A=$$A B=$$B C=$$C D=$$D E=$$E F=$$F G=$$G H=$$H I=$$I J=$$J
+',
+ '', "A=a B=b C=c D=d E=e F=f G=g H=h I=i J=j\n");
+
+# TEST 8: Test unexporting multiple variables on the same line
+
+@extraENV{qw(A B C D E F G H I J)} = qw(1 2 3 4 5 6 7 8 9 10);
+
+&run_make_test('
+A = a
+B = b
+C = c
+D = d
+E = e
+F = f
+G = g
+H = h
+I = i
+J = j
+
+SOME = A B C
+
+unexport F G H I J
+
+unexport D E $(SOME)
+
+all: ; @echo A=$$A B=$$B C=$$C D=$$D E=$$E F=$$F G=$$G H=$$H I=$$I J=$$J
+',
+ '', "A= B= C= D= E= F= G= H= I= J=\n");
+
+# TEST 9: Check setting a variable named "export"
+
+&run_make_test('
+export = 123
+export export
+export export = 456
+a: ; @echo "\$$(export)=$(export) / \$$export=$$export"
+',
+ '', "\$(export)=456 / \$export=456\n");
+
+# TEST 9: Check "export" as a target
+
+&run_make_test('
+a: export
+export: ; @echo "$@"
+',
+ '', "export\n");
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/include b/tests/scripts/features/include
new file mode 100644
index 0000000..f78563f
--- /dev/null
+++ b/tests/scripts/features/include
@@ -0,0 +1,243 @@
+# -*-mode: perl; rm-trailing-spaces: nil-*-
+
+$description = "Test various forms of the GNU make 'include' command.";
+
+$details = "\
+Test include, -include, sinclude and various regressions involving them.
+Test extra whitespace at the end of the include, multiple -includes and
+sincludes (should not give an error) and make sure that errors are reported
+for targets that were also -included.";
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+
+# The contents of the Makefile ...
+
+print MAKEFILE <<EOF;
+\#Extra space at the end of the following file name
+include $makefile2
+all: ; \@echo There should be no errors for this makefile.
+
+-include nonexistent.mk
+-include nonexistent.mk
+sinclude nonexistent.mk
+sinclude nonexistent-2.mk
+-include makeit.mk
+sinclude makeit.mk
+
+error: makeit.mk
+EOF
+
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile2");
+
+print MAKEFILE "ANOTHER: ; \@echo This is another included makefile\n";
+
+close(MAKEFILE);
+
+# Create the answer to what should be produced by this Makefile
+&run_make_with_options($makefile, "all", &get_logfile);
+$answer = "There should be no errors for this makefile.\n";
+&compare_output($answer, &get_logfile(1));
+
+&run_make_with_options($makefile, "ANOTHER", &get_logfile);
+$answer = "This is another included makefile\n";
+&compare_output($answer, &get_logfile(1));
+
+$makefile = undef;
+
+# Try to build the "error" target; this will fail since we don't know
+# how to create makeit.mk, but we should also get a message (even though
+# the -include suppressed it during the makefile read phase, we should
+# see one during the makefile run phase).
+
+run_make_test
+ ('
+-include foo.mk
+error: foo.mk ; @echo $@
+',
+ '',
+ "#MAKE#: *** No rule to make target 'foo.mk', needed by 'error'. Stop.\n",
+ 512
+ );
+
+# Make sure that target-specific variables don't impact things. This could
+# happen because a file record is created when a target-specific variable is
+# set.
+
+run_make_test
+ ('
+bar.mk: foo := baz
+-include bar.mk
+hello: ; @echo hello
+',
+ '',
+ "hello\n"
+ );
+
+
+# Test inheritance of dontcare flag when rebuilding makefiles.
+#
+run_make_test('
+.PHONY: all
+all: ; @:
+
+-include foo
+
+foo: bar; @:
+', '', '');
+
+
+# Make sure that we don't die when the command fails but we dontcare.
+# (Savannah bug #13216).
+#
+run_make_test('
+.PHONY: all
+all:; @:
+
+-include foo
+
+foo: bar; @:
+
+bar:; @exit 1
+', '', '');
+
+# Check include, sinclude, -include with no filenames.
+# (Savannah bug #1761).
+
+run_make_test('
+.PHONY: all
+all:; @:
+include
+-include
+sinclude', '', '');
+
+
+# Test that the diagnostics is issued even if the target has been
+# tried before with the dontcare flag (direct dependency case).
+#
+run_make_test('
+-include foo
+
+all: bar
+
+foo: baz
+bar: baz
+',
+'',
+"#MAKE#: *** No rule to make target 'baz', needed by 'bar'. Stop.\n",
+512);
+
+# Test that the diagnostics is issued even if the target has been
+# tried before with the dontcare flag (indirect dependency case).
+#
+run_make_test('
+-include foo
+
+all: bar
+
+foo: baz
+bar: baz
+baz: end
+',
+'',
+"#MAKE#: *** No rule to make target 'end', needed by 'baz'. Stop.\n",
+512);
+
+# Test that the diagnostics is issued even if the target has been
+# tried before with the dontcare flag (include/-include case).
+#
+run_make_test('
+include bar
+-include foo
+
+all:
+
+foo: baz
+bar: baz
+baz: end
+',
+'',
+"#MAKEFILE#:2: bar: No such file or directory
+#MAKE#: *** No rule to make target 'end', needed by 'baz'. Stop.\n",
+512);
+
+# Test include of make-able file doesn't show an error (Savannah #102)
+run_make_test(q!
+.PHONY: default
+default:; @echo DONE
+
+inc1:; echo > $@
+include inc1
+include inc2
+inc2:; echo > $@
+!,
+ '', "echo > inc2\necho > inc1\nDONE\n");
+
+rmfiles('inc1', 'inc2');
+
+# Test include of non-make-able file does show an error (Savannah #102)
+run_make_test(q!
+.PHONY: default
+default:; @echo DONE
+
+inc1:; echo > $@
+include inc1
+include inc2
+!,
+ '', "#MAKEFILE#:7: inc2: No such file or directory\n#MAKE#: *** No rule to make target 'inc2'. Stop.\n", 512);
+
+rmfiles('inc1');
+
+# Include same file multiple times
+
+run_make_test(q!
+default:; @echo DEFAULT
+include inc1
+inc1:; echo > $@
+include inc1
+!,
+ '', "echo > inc1\nDEFAULT\n");
+
+rmfiles('inc1');
+
+# Included file has a prerequisite that fails to build
+
+run_make_test(q!
+default:; @echo DEFAULT
+include inc1
+inc1: foo; echo > $@
+foo:; exit 1
+!,
+ '', "exit 1\n#MAKEFILE#:3: inc1: No such file or directory\n#MAKE#: *** [#MAKEFILE#:5: foo] Error 1\n", 512);
+
+rmfiles('inc1');
+
+# Included file has a prerequisite we don't know how to build
+
+run_make_test(q!
+default:; @echo DEFAULT
+include inc1
+inc1: foo; echo > $@
+!,
+ '', "#MAKEFILE#:3: inc1: No such file or directory\n#MAKE#: *** No rule to make target 'foo', needed by 'inc1'. Stop.\n", 512);
+
+rmfiles('inc1');
+
+# include a directory
+
+if ($all_tests) {
+ # Test that include of a rebuild-able file doesn't show a warning
+ # Savannah bug #102
+ run_make_test(q!
+include foo
+foo: ; @echo foo = bar > $@
+!,
+ '', "#MAKE#: 'foo' is up to date.\n");
+ rmfiles('foo');
+}
+
+1;
diff --git a/tests/scripts/features/jobserver b/tests/scripts/features/jobserver
new file mode 100644
index 0000000..7da4a65
--- /dev/null
+++ b/tests/scripts/features/jobserver
@@ -0,0 +1,107 @@
+# -*-perl-*-
+
+$description = "Test jobserver.";
+
+$details = "These tests are ones that specifically are different when the
+jobserver feature is available. Most -j tests are the same whether or not
+jobserver is available, and those appear in the 'parallelism' test suite.";
+
+exists $FEATURES{'jobserver'} or return -1;
+
+if (!$parallel_jobs) {
+ return -1;
+}
+
+# Shorthand
+my $np = '--no-print-directory';
+
+# Simple test of MAKEFLAGS settings
+run_make_test(q!
+SHOW = $(patsubst --jobserver-auth=%,--jobserver-auth=<auth>,$(MAKEFLAGS))
+recurse: ; @echo $@: "/$(SHOW)/"; $(MAKE) -f #MAKEFILE# all
+all:;@echo $@: "/$(SHOW)/"
+!,
+ "-j2 $np", "recurse: /-j2 --jobserver-auth=<auth> $np/\nall: /-j2 --jobserver-auth=<auth> $np/\n");
+
+# Setting parallelism with the environment
+# Command line should take precedence over the environment
+$extraENV{MAKEFLAGS} = "-j2 $np";
+run_make_test(q!
+SHOW = $(patsubst --jobserver-auth=%,--jobserver-auth=<auth>,$(MAKEFLAGS))
+recurse: ; @echo $@: "/$(SHOW)/"; $(MAKE) -f #MAKEFILE# all
+all:;@echo $@: "/$(SHOW)/"
+!,
+ '', "recurse: /-j2 --jobserver-auth=<auth> $np/\nall: /-j2 --jobserver-auth=<auth> $np/\n");
+delete $extraENV{MAKEFLAGS};
+
+# Test override of -jN
+$extraENV{MAKEFLAGS} = "-j9 $np";
+run_make_test(q!
+SHOW = $(patsubst --jobserver-auth=%,--jobserver-auth=<auth>,$(MAKEFLAGS))
+recurse: ; @echo $@: "/$(SHOW)/"; $(MAKE) -j3 -f #MAKEFILE# recurse2
+recurse2: ; @echo $@: "/$(SHOW)/"; $(MAKE) -f #MAKEFILE# all
+all:;@echo $@: "/$(SHOW)/"
+!,
+ "-j2 $np", "recurse: /-j2 --jobserver-auth=<auth> $np/\n#MAKE#[1]: warning: -jN forced in submake: disabling jobserver mode.\nrecurse2: /-j3 --jobserver-auth=<auth> $np/\nall: /-j3 --jobserver-auth=<auth> $np/\n");
+delete $extraENV{MAKEFLAGS};
+
+# Test override of -jN with -j
+run_make_test(q!
+SHOW = $(patsubst --jobserver-auth=%,--jobserver-auth=<auth>,$(MAKEFLAGS))
+recurse: ; @echo $@: "/$(SHOW)/"; $(MAKE) -j -f #MAKEFILE# recurse2
+recurse2: ; @echo $@: "/$(SHOW)/"; $(MAKE) -f #MAKEFILE# all
+all:;@echo $@: "/$(SHOW)/"
+!,
+ "-j2 $np", "recurse: /-j2 --jobserver-auth=<auth> $np/\n#MAKE#[1]: warning: -jN forced in submake: disabling jobserver mode.\nrecurse2: /-j $np/\nall: /-j $np/\n");
+
+# Don't put --jobserver-auth into a re-exec'd MAKEFLAGS.
+# We can't test this directly because there's no way a makefile can
+# show the value of MAKEFLAGS we were re-exec'd with. We can intuit it
+# by looking for "disabling jobserver mode" warnings; we should only
+# get one from the original invocation and none from the re-exec.
+# See Savannah bug #18124
+
+unlink('inc.mk');
+
+run_make_test(q!
+-include inc.mk
+recur:
+# @echo 'MAKEFLAGS = $(MAKEFLAGS)'
+ @rm -f inc.mk
+ @$(MAKE) -j2 -f #MAKEFILE# all
+all:
+# @echo 'MAKEFLAGS = $(MAKEFLAGS)'
+ @echo $@
+inc.mk:
+# @echo 'MAKEFLAGS = $(MAKEFLAGS)'
+ @echo 'FOO = bar' > $@
+!,
+ "$np -j2", "#MAKE#[1]: warning: -jN forced in submake: disabling jobserver mode.\nall\n");
+
+unlink('inc.mk');
+
+# Test recursion when make doesn't think it exists.
+# See Savannah bug #39934
+# Or Red Hat bug https://bugzilla.redhat.com/show_bug.cgi?id=885474
+
+open(MAKEFILE,"> Makefile2");
+print MAKEFILE '
+vpath %.c ../
+foo:
+';
+close(MAKEFILE);
+
+run_make_test(q!
+default: ; @ #MAKEPATH# -f Makefile2
+!,
+ "-j2 $np",
+"#MAKE#[1]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule.
+#MAKE#[1]: Nothing to be done for 'foo'.");
+
+rmfiles('Makefile2');
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/load b/tests/scripts/features/load
new file mode 100644
index 0000000..2e9318d
--- /dev/null
+++ b/tests/scripts/features/load
@@ -0,0 +1,110 @@
+# -*-perl-*-
+$description = "Test the load operator.";
+
+$details = "Test dynamic loading of modules.";
+
+# Don't do anything if this system doesn't support "load"
+exists $FEATURES{load} or return -1;
+
+# First build a shared object
+# Provide both a default and non-default load symbol
+
+unlink(qw(testload.c testload.so));
+
+open(my $F, '> testload.c') or die "open: testload.c: $!\n";
+print $F <<'EOF' ;
+#include <string.h>
+#include <stdio.h>
+
+#include "gnumake.h"
+
+int plugin_is_GPL_compatible;
+
+int
+testload_gmk_setup (gmk_floc *pos)
+{
+ (void)pos;
+ gmk_eval ("TESTLOAD = implicit", 0);
+ return 1;
+}
+
+int
+explicit_setup (gmk_floc *pos)
+{
+ (void)pos;
+ gmk_eval ("TESTLOAD = explicit", 0);
+ return 1;
+}
+EOF
+close($F) or die "close: testload.c: $!\n";
+
+# Make sure we can compile
+# CONFIG_FLAGS are loaded from config-flags.pm and set by configure
+
+my $sobuild = "$CONFIG_FLAGS{CC} ".($srcdir? "-I$srcdir":'')." $CONFIG_FLAGS{CPPFLAGS} $CONFIG_FLAGS{CFLAGS} -shared -fPIC $CONFIG_FLAGS{LDFLAGS} -o testload.so testload.c";
+
+my $clog = `$sobuild 2>&1`;
+if ($? != 0) {
+ $verbose and print "Failed to build testload.so:\n$sobuild\n$_";
+ return -1;
+}
+
+# TEST 1
+run_make_test(q!
+PRE := $(.LOADED)
+load testload.so
+POST := $(.LOADED)
+all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
+!,
+ '--warn-undefined-variables', "pre= post=testload.so implicit\n");
+
+# TEST 2
+# Load using an explicit function
+run_make_test(q!
+PRE := $(.LOADED)
+load ./testload.so(explicit_setup)
+POST := $(.LOADED)
+all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
+!,
+ '', "pre= post=testload.so explicit\n");
+
+# TEST 4
+# Check multiple loads
+run_make_test(q!
+PRE := $(.LOADED)
+load ./testload.so
+load testload.so(explicit_setup)
+POST := $(.LOADED)
+all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
+!,
+ '', "pre= post=testload.so implicit\n");
+
+# TEST 5
+# Check auto-rebuild of loaded file that's out of date
+utouch(-10, 'testload.so');
+touch('testload.c');
+
+run_make_test(q!
+PRE := $(.LOADED)
+load ./testload.so
+POST := $(.LOADED)
+all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
+testload.so: testload.c ; @echo "rebuilding $@"; !.$sobuild,
+ '', "rebuilding testload.so\npre= post=testload.so implicit\n");
+
+# TEST 5
+# Check auto-rebuild of loaded file when it doesn't exist
+unlink('testload.so');
+
+run_make_test(q!
+PRE := $(.LOADED)
+-load ./testload.so(explicit_setup)
+POST := $(.LOADED)
+all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
+%.so: %.c ; @echo "rebuilding $@"; !.$sobuild,
+ '', "rebuilding testload.so\npre= post=testload.so explicit\n");
+
+unlink(qw(testload.c testload.so)) unless $keep;
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/loadapi b/tests/scripts/features/loadapi
new file mode 100644
index 0000000..8c824c0
--- /dev/null
+++ b/tests/scripts/features/loadapi
@@ -0,0 +1,116 @@
+# -*-perl-*-
+$description = "Test the shared object load API.";
+
+$details = "Verify the different aspects of the shared object API.";
+
+# Don't do anything if this system doesn't support "load"
+exists $FEATURES{load} or return -1;
+
+# First build a shared object
+# Provide both a default and non-default load symbol
+
+unlink(qw(testapi.c testapi.so));
+
+open(my $F, '> testapi.c') or die "open: testapi.c: $!\n";
+print $F <<'EOF' ;
+#include <string.h>
+#include <stdio.h>
+
+#include "gnumake.h"
+
+int plugin_is_GPL_compatible;
+
+static char *
+test_eval (const char *buf)
+{
+ gmk_eval (buf, 0);
+ return NULL;
+}
+
+static char *
+test_expand (const char *val)
+{
+ return gmk_expand (val);
+}
+
+static char *
+test_noexpand (const char *val)
+{
+ char *str = gmk_alloc (strlen (val) + 1);
+ strcpy (str, val);
+ return str;
+}
+
+static char *
+func_test (const char *funcname, unsigned int argc, char **argv)
+{
+ char *mem;
+
+ if (strcmp (funcname, "test-expand") == 0)
+ return test_expand (argv[0]);
+
+ if (strcmp (funcname, "test-eval") == 0)
+ return test_eval (argv[0]);
+
+ if (strcmp (funcname, "test-noexpand") == 0)
+ return test_noexpand (argv[0]);
+
+ mem = gmk_alloc (sizeof ("unknown"));
+ strcpy (mem, "unknown");
+ return mem;
+}
+
+int
+testapi_gmk_setup ()
+{
+ gmk_add_function ("test-expand", func_test, 1, 1, GMK_FUNC_DEFAULT);
+ gmk_add_function ("test-noexpand", func_test, 1, 1, GMK_FUNC_NOEXPAND);
+ gmk_add_function ("test-eval", func_test, 1, 1, GMK_FUNC_DEFAULT);
+ gmk_add_function ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.", func_test, 0, 0, 0);
+ return 1;
+}
+EOF
+close($F) or die "close: testapi.c: $!\n";
+
+my $sobuild = "$CONFIG_FLAGS{CC} ".($srcdir? "-I$srcdir":'')." $CONFIG_FLAGS{CPPFLAGS} $CONFIG_FLAGS{CFLAGS} -shared -fPIC $CONFIG_FLAGS{LDFLAGS} -o testapi.so testapi.c";
+
+my $clog = `$sobuild 2>&1`;
+if ($? != 0) {
+ $verbose and print "Failed to build testapi.so:\n$sobuild\n$_";
+ return -1;
+}
+
+# TEST 1
+# Check the gmk_expand() function
+run_make_test(q!
+EXPAND = expansion
+all: ; @echo $(test-expand $$(EXPAND))
+load testapi.so
+!,
+ '', "expansion\n");
+
+# TEST 2
+# Check the eval operation. Prove that the argument is expanded only once
+run_make_test(q!
+load testapi.so
+TEST = bye
+ASSIGN = VAR = $(TEST) $(shell echo there)
+$(test-eval $(value ASSIGN))
+TEST = hi
+all:;@echo '$(VAR)'
+!,
+ '', "hi there\n");
+
+# TEST 2
+# Check the no-expand capability
+run_make_test(q!
+load testapi.so
+TEST = hi
+all:;@echo '$(test-noexpand $(TEST))'
+!,
+ '', "\$(TEST)\n");
+
+unlink(qw(testapi.c testapi.so)) unless $keep;
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/mult_rules b/tests/scripts/features/mult_rules
new file mode 100644
index 0000000..e706e17
--- /dev/null
+++ b/tests/scripts/features/mult_rules
@@ -0,0 +1,78 @@
+$description = "\
+The following test creates a makefile to test the presence
+of multiple rules for one target. One file can be the
+target of several rules if at most one rule has commands;
+the other rules can only have dependencies.";
+
+$details = "\
+The makefile created in this test contains two hardcoded rules
+for foo.o and bar.o. It then gives another multiple target rule
+with the same names as above but adding more dependencies.
+Additionally, another variable extradeps is listed as a
+dependency but is defined to be null. It can however be defined
+on the make command line as extradeps=extra.h which adds yet
+another dependency to the targets.";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<EOF;
+objects = foo.o bar.o
+foo.o : defs.h
+bar.o : defs.h test.h
+extradeps =
+\$(objects) : config.h \$(extradeps)
+\t\@echo EXTRA EXTRA
+EOF
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch("defs.h","test.h","config.h");
+
+if ($vos)
+{
+ $error_code = 3307;
+}
+else
+{
+ $error_code = 512;
+}
+
+&run_make_with_options($makefile,
+ "extradeps=extra.h",
+ &get_logfile,
+ $error_code);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "$make_name: *** No rule to make target 'extra.h', needed by 'foo.o'. Stop.\n";
+
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #2
+# -------
+
+&touch("extra.h");
+
+&run_make_with_options($makefile,
+ "extradeps=extra.h",
+ &get_logfile,
+ 0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "EXTRA EXTRA\n";
+
+&compare_output($answer,&get_logfile(1));
+
+unlink("defs.h","test.h","config.h","extra.h");
+
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/features/mult_targets b/tests/scripts/features/mult_targets
new file mode 100644
index 0000000..c8ff418
--- /dev/null
+++ b/tests/scripts/features/mult_targets
@@ -0,0 +1,46 @@
+$description = "The following test creates a makefile to test that a \n "
+ ."rule with multiple targets is equivalent to writing \n"
+ ."many rules, each with one target, and all identical aside\n"
+ ."from that.";
+
+$details = "A makefile is created with one rule and two targets. Make \n"
+ ."is called twice, once for each target, and the output which \n"
+ ."contains the target name with \$@ is looked at for the changes.\n"
+ ."This test also tests the substitute function by replacing \n"
+ ."the word output with nothing in the target name giving either\n"
+ ."an output of \"I am little\" or \"I am big\"";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "bigoutput littleoutput: test.h\n";
+print MAKEFILE "\t\@echo I am \$(subst output,,\$@)\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch("test.h");
+
+&run_make_with_options($makefile,"bigoutput",&get_logfile);
+
+
+# Create the answer to what should be produced by this Makefile
+$answer = "I am big\n";
+
+&compare_output($answer,&get_logfile(1));
+
+&run_make_with_options($makefile,"littleoutput",&get_logfile);
+$answer = "I am little\n";
+&compare_output($answer,&get_logfile(1));
+
+unlink "test.h";
+
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/features/order_only b/tests/scripts/features/order_only
new file mode 100644
index 0000000..4ebdc2b
--- /dev/null
+++ b/tests/scripts/features/order_only
@@ -0,0 +1,118 @@
+# -*-perl-*-
+$description = "Test order-only prerequisites.";
+
+$details = "\
+Create makefiles with various combinations of normal and order-only
+prerequisites and ensure they behave properly. Test the \$| variable.";
+
+# TEST #0 -- Basics
+
+run_make_test('
+%r: | baz ; @echo $< $^ $|
+bar: foo
+foo:;@:
+baz:;@:',
+ '', "foo foo baz\n");
+
+# TEST #1 -- First try: the order-only prereqs need to be built.
+
+run_make_test(q!
+foo: bar | baz
+ @echo '$$^ = $^'
+ @echo '$$| = $|'
+ touch $@
+
+.PHONY: baz
+
+bar baz:
+ touch $@!,
+ '', "touch bar\ntouch baz\n\$^ = bar\n\$| = baz\ntouch foo\n");
+
+
+# TEST #2 -- now we do it again: baz is PHONY but foo should _NOT_ be updated
+
+run_make_test(undef, '', "touch baz\n");
+
+unlink(qw(foo bar baz));
+
+# TEST #3 -- Make sure the order-only prereq was promoted to normal.
+
+run_make_test(q!
+foo: bar | baz
+ @echo '$$^ = $^'
+ @echo '$$| = $|'
+ touch $@
+
+foo: baz
+
+.PHONY: baz
+
+bar baz:
+ touch $@!,
+ '', "touch bar\ntouch baz\n\$^ = bar baz\n\$| = \ntouch foo\n");
+
+
+# TEST #4 -- now we do it again
+
+run_make_test(undef, '', "touch baz\n\$^ = bar baz\n\$| = \ntouch foo\n");
+
+unlink(qw(foo bar baz));
+
+# Test empty normal prereqs
+
+# TEST #5 -- make sure the parser was correct.
+
+run_make_test(q!
+foo:| baz
+ @echo '$$^ = $^'
+ @echo '$$| = $|'
+ touch $@
+
+.PHONY: baz
+
+baz:
+ touch $@!,
+ '', "touch baz\n\$^ = \n\$| = baz\ntouch foo\n");
+
+# TEST #6 -- now we do it again: this time foo won't be built
+
+run_make_test(undef, '', "touch baz\n");
+
+unlink(qw(foo baz));
+
+# Test order-only in pattern rules
+
+# TEST #7 -- make sure the parser was correct.
+
+run_make_test(q!
+%.w : %.x | baz
+ @echo '$$^ = $^'
+ @echo '$$| = $|'
+ touch $@
+
+all: foo.w
+
+.PHONY: baz
+foo.x baz:
+ touch $@!,
+ '',
+ "touch foo.x\ntouch baz\n\$^ = foo.x\n\$| = baz\ntouch foo.w\n");
+
+# TEST #8 -- now we do it again: this time foo.w won't be built
+
+run_make_test(undef, '', "touch baz\n");
+
+unlink(qw(foo.w foo.x baz));
+
+# TEST #9 -- make sure that $< is set correctly in the face of order-only
+# prerequisites in pattern rules.
+
+run_make_test('
+%r: | baz ; @echo $< $^ $|
+bar: foo
+foo:;@:
+baz:;@:',
+ '', "foo foo baz\n");
+
+
+1;
diff --git a/tests/scripts/features/output-sync b/tests/scripts/features/output-sync
new file mode 100644
index 0000000..7237e65
--- /dev/null
+++ b/tests/scripts/features/output-sync
@@ -0,0 +1,349 @@
+# -*-perl-*-
+
+$description = "Test --output-sync (-O) option.";
+
+$details = "Test the synchronization of output from parallel jobs.";
+
+# If we don't have output sync support, never mind.
+exists $FEATURES{'output-sync'} or return -1;
+
+# Output sync can't be tested without parallelization
+$parallel_jobs or return -1;
+
+
+if ($vos) {
+ $sleep_command = "sleep -seconds";
+}
+else {
+ $sleep_command = "sleep";
+}
+
+# The following subdirectories with Makefiles are used in several
+# of the following tests. The model is:
+# foo/Makefile - has a "foo" target that waits for the bar target
+# bar/Makefile - has a "bar" target that runs immediately
+# - has a "baz" target that waits for the foo target
+#
+# So, you start the two sub-makes in parallel and first the "bar" target is
+# built, followed by "foo", followed by "baz". The trick is that first each
+# target prints a "start" statement, then waits (if appropriate), then prints
+# an end statement. Thus we can tell if the -O flag is working, since
+# otherwise these statements would be mixed together.
+
+@syncfiles = ();
+
+sub output_sync_clean {
+ rmfiles('foo/Makefile', 'bar/Makefile', @syncfiles);
+ rmdir('foo');
+ rmdir('bar');
+}
+
+# We synchronize the different jobs by having them wait for a sentinel file to
+# be created, instead of relying on a certain amount of time passing.
+# Unfortunately in this test we have to sleep after we see the sync file,
+# since we also want to make the obtaining of the write synchronization lock
+# reliable. If things are too fast, then sometimes a different job will steal
+# the output sync lock and the output is mis-ordered from what we expect.
+sub output_sync_wait {
+ return "while [ ! -f ../mksync.$_[0] ]; do :; done; rm -f ../mksync.$_[0].wait; $sleep_command 1";
+}
+sub output_sync_set {
+ return "date > ../mksync.$_[0]";
+}
+
+@syncfiles = qw(mksync.foo mksync.foo_start mksync.bar mksync.bar_start);
+
+$tmout = 30;
+
+output_sync_clean();
+mkdir('foo', 0777);
+mkdir('bar', 0777);
+
+$set_foo = output_sync_set('foo');
+$set_bar = output_sync_set('bar');
+$set_foo_start = output_sync_set('foo_start');
+$set_bar_start = output_sync_set('bar_start');
+
+$wait_foo = output_sync_wait('foo');
+$wait_bar = output_sync_wait('bar');
+$wait_foo_start = output_sync_set('foo_start');
+$wait_bar_start = output_sync_set('bar_start');
+
+open(MAKEFILE,"> foo/Makefile");
+print MAKEFILE <<EOF;
+all: foo
+
+foo: foo-base ; \@$set_foo
+
+foo-base:
+\t\@echo foo: start
+\t\@$wait_bar
+\t\@echo foo: end
+
+foo-job: foo-job-base ; \@$set_foo
+
+foo-job-base:
+\t\@$wait_bar_start
+\t\@echo foo: start
+\t\@$set_foo_start
+\t\@$wait_bar
+\t\@echo foo: end
+
+foo-fail:
+\t\@echo foo-fail: start
+\t\@$wait_bar
+\t\@echo foo-fail: end
+\t\@exit 1
+EOF
+close(MAKEFILE);
+
+open(MAKEFILE,"> bar/Makefile");
+print MAKEFILE <<EOF;
+all: bar baz
+
+bar: bar-base ; \@$set_bar
+bar-base:
+\t\@echo bar: start
+\t\@echo bar: end
+
+bar-job: bar-job-base ; \@$set_bar
+
+bar-job-base:
+\t\@echo bar: start
+\t\@$set_bar_start
+\t\@$wait_foo_start
+\t\@echo bar: end
+
+baz: baz-base
+baz-base:
+\t\@echo baz: start
+\t\@$wait_foo
+\t\@echo baz: end
+EOF
+close(MAKEFILE);
+
+# Test per-make synchronization.
+unlink(@syncfiles);
+run_make_test(qq!
+all: make-foo make-bar
+
+make-foo: ; \$(MAKE) -C foo
+
+make-bar: ; \$(MAKE) -C bar!,
+ '-j -Orecurse',
+"#MAKEPATH# -C foo
+#MAKE#[1]: Entering directory '#PWD#/foo'
+foo: start
+foo: end
+#MAKE#[1]: Leaving directory '#PWD#/foo'
+#MAKEPATH# -C bar
+#MAKE#[1]: Entering directory '#PWD#/bar'
+bar: start
+bar: end
+baz: start
+baz: end
+#MAKE#[1]: Leaving directory '#PWD#/bar'\n", 0, $tmout);
+
+# Test per-target synchronization.
+# Note we have to sleep again here after starting the foo makefile before
+# starting the bar makefile, otherwise the "entering/leaving" messages for the
+# submakes might be ordered differently than we expect.
+
+unlink(@syncfiles);
+run_make_test(qq!
+x=1
+\$xMAKEFLAGS += --no-print-directory
+
+all: make-foo make-bar
+
+make-foo: ; \$(MAKE) -C foo
+
+make-bar: ; $sleep_command 1 ; \$(MAKE) -C bar!,
+ '-j --output-sync=target',
+"#MAKEPATH# -C foo
+$sleep_command 1 ; #MAKEPATH# -C bar
+#MAKE#[1]: Entering directory '#PWD#/bar'
+bar: start
+bar: end
+#MAKE#[1]: Leaving directory '#PWD#/bar'
+#MAKE#[1]: Entering directory '#PWD#/foo'
+foo: start
+foo: end
+#MAKE#[1]: Leaving directory '#PWD#/foo'
+#MAKE#[1]: Entering directory '#PWD#/bar'
+baz: start
+baz: end
+#MAKE#[1]: Leaving directory '#PWD#/bar'\n", 0, $tmout);
+
+# Rerun but this time suppress the directory tracking
+unlink(@syncfiles);
+run_make_test(undef, '-j --output-sync=target x=',
+ "#MAKEPATH# -C foo
+$sleep_command 1 ; #MAKEPATH# -C bar
+bar: start
+bar: end
+foo: start
+foo: end
+baz: start
+baz: end\n", 0, $tmout);
+
+# Test that messages from make itself are enclosed with
+# "Entering/Leaving directory" messages.
+unlink(@syncfiles);
+run_make_test(qq!
+all: make-foo-fail make-bar-bar
+
+make-foo-fail: ; \$(MAKE) -C foo foo-fail
+
+make-bar-bar: ; $sleep_command 1 ; \$(MAKE) -C bar bar!,
+ '-j -O',
+"#MAKEPATH# -C foo foo-fail
+$sleep_command 1 ; #MAKEPATH# -C bar bar
+#MAKE#[1]: Entering directory '#PWD#/bar'
+bar: start
+bar: end
+#MAKE#[1]: Leaving directory '#PWD#/bar'
+#MAKE#[1]: Entering directory '#PWD#/foo'
+foo-fail: start
+foo-fail: end
+#MAKE#[1]: *** [Makefile:23: foo-fail] Error 1
+#MAKE#[1]: Leaving directory '#PWD#/foo'
+#MAKE#: *** [#MAKEFILE#:4: make-foo-fail] Error 2\n",
+512);
+
+# Test the per-job synchronization.
+# For this we'll have bar-job:
+# print start, invoke bar-start, wait for foo-start, print end, print-bar-end
+# And foo-job:
+# wait for bar-start, print foo-start, wait for bar-end, print end
+
+unlink(@syncfiles);
+run_make_test(qq!
+all: make-foo make-bar
+
+make-foo: ; \$(MAKE) -C foo foo-job
+
+make-bar: ; $sleep_command 1 ; \$(MAKE) -C bar bar-job!,
+ '-j --output-sync=line',
+"#MAKEPATH# -C foo foo-job
+$sleep_command 1 ; #MAKEPATH# -C bar bar-job
+#MAKE#[1]: Entering directory '#PWD#/foo'
+foo: start
+#MAKE#[1]: Leaving directory '#PWD#/foo'
+#MAKE#[1]: Entering directory '#PWD#/bar'
+bar: start
+#MAKE#[1]: Leaving directory '#PWD#/bar'
+#MAKE#[1]: Entering directory '#PWD#/bar'
+bar: end
+#MAKE#[1]: Leaving directory '#PWD#/bar'
+#MAKE#[1]: Entering directory '#PWD#/foo'
+foo: end
+#MAKE#[1]: Leaving directory '#PWD#/foo'\n", 0, $tmout);
+
+
+# Remove temporary directories and contents.
+output_sync_clean();
+
+# Ensure recursion doesn't mis-order or double-print output
+run_make_test(qq!
+all:
+\t\@echo foo
+\t\@+echo bar
+!,
+ '-j -Oline', "foo\nbar\n");
+
+run_make_test(undef, '-j -Otarget', "foo\nbar\n");
+
+# Ensure when make writes out command it's not misordered
+run_make_test(qq!
+all:
+\t\@echo foobar
+\ttrue
+!,
+ '-j -Oline', "foobar\ntrue\n");
+
+run_make_test(undef, '-j -Otarget', "foobar\ntrue\n");
+
+# Ensure that shell functions inside recipes write stderr to the sync file
+run_make_test(q!
+all: ; @: $(shell echo foo 1>&2)
+!,
+ '-w -Oline', "#MAKE#: Entering directory '#PWD#'\nfoo\n#MAKE#: Leaving directory '#PWD#'\n");
+
+# Ensure that output generated while parsing makefiles is synced
+# when appropriate.
+run_make_test(q!
+$(shell echo foo 1>&2)
+all: ; echo bar
+!,
+ '-s -w -Otarget', "#MAKE#: Entering directory '#PWD#'\nfoo\n#MAKE#: Leaving directory '#PWD#'\n#MAKE#: Entering directory '#PWD#'\nbar\n#MAKE#: Leaving directory '#PWD#'\n");
+
+# Test recursion
+$m1 = get_tmpfile();
+$m2 = get_tmpfile();
+
+open(M1, "> $m1");
+print M1 <<'EOF';
+$(shell echo d1 stderr 1>&2)
+$(info d1 stdout)
+all:; @:
+EOF
+close(M1);
+
+open(M2, "> $m2");
+print M2 <<'EOF';
+$(shell echo d2 stderr 1>&2)
+$(info d2 stdout)
+all:; @:
+# Force an ordering on the output
+$(shell sleep 1)
+EOF
+close(M2);
+
+run_make_test(qq!
+all: t1 t2
+t1: ; \@\$(MAKE) -f $m1
+t2: ; \@\$(MAKE) -f $m2
+!,
+ "-j -Oline", "#MAKE#[1]: Entering directory '#PWD#'\nd1 stderr\nd1 stdout\n#MAKE#[1]: Leaving directory '#PWD#'\n#MAKE#[1]: Entering directory '#PWD#'\nd2 stderr\nd2 stdout\n#MAKE#[1]: Leaving directory '#PWD#'\n");
+
+rmfiles($m1, $m2);
+
+# Ensure that output generated while parsing makefiles is synced
+# when appropriate.
+$m1 = get_tmpfile();
+
+open(M1, "> $m1");
+print M1 <<'EOF';
+$(shell echo d1 stderr 1>&2)
+$(info d1 stdout)
+$(error d1 failed)
+all:; @:
+EOF
+close(M1);
+
+run_make_test(qq!
+all: t1
+t1: ; -\@\$(MAKE) -f $m1
+!,
+ "-j -Oline", "#MAKE#[1]: Entering directory '#PWD#'\nd1 stderr\nd1 stdout\n$m1:3: *** d1 failed. Stop.\n#MAKE#[1]: Leaving directory '#PWD#'\n#MAKE#: [#MAKEFILE#:3: t1] Error 2 (ignored)\n");
+
+rmfiles($m1);
+
+# Test $(error ...) functions in recipes
+
+run_make_test(q!
+foo: $(OBJS) ; echo $(or $(filter %.o,$^),$(error fail))
+!,
+ '-O', "#MAKEFILE#:2: *** fail. Stop.\n", 512);
+
+# SV 47365: Make sure exec failure error messages are shown
+# Is "127" not always the same everywhere? We may have to detect it?
+
+run_make_test(q!
+all:: ; @./foo bar baz
+!,
+ '-O', "#MAKE#: ./foo: Command not found\n#MAKE#: *** [#MAKEFILE#:2: all] Error 127\n", 512);
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/override b/tests/scripts/features/override
new file mode 100644
index 0000000..fff6c4e
--- /dev/null
+++ b/tests/scripts/features/override
@@ -0,0 +1,45 @@
+# -*-perl-*-
+
+$description = "Test the override directive on variable assignments.";
+
+$details = "";
+
+# TEST 0: Basic override
+
+run_make_test('
+X = start
+override recur = $(X)
+override simple := $(X)
+X = end
+all: ; @echo "$(recur) $(simple)"
+',
+ 'recur=I simple=J', "end start\n");
+
+# TEST 1: Override with append
+
+run_make_test('
+X += X1
+override X += X2
+override Y += Y1
+Y += Y2
+all: ; @echo "$(X) $(Y)"
+',
+ '', "X1 X2 Y1\n");
+
+# TEST 2: Override with append to the command line
+
+run_make_test(undef, 'X=C Y=C', "C X2 C Y1\n");
+
+# Test override of define/endef
+
+run_make_test('
+override define foo
+@echo First comes the definition.
+@echo Then comes the override.
+endef
+all: ; $(foo)
+',
+ 'foo=Hello', "First comes the definition.\nThen comes the override.\n");
+
+
+1;
diff --git a/tests/scripts/features/parallelism b/tests/scripts/features/parallelism
new file mode 100644
index 0000000..fabe548
--- /dev/null
+++ b/tests/scripts/features/parallelism
@@ -0,0 +1,217 @@
+# -*-perl-*-
+
+$description = "Test parallelism (-j) option.";
+
+
+$details = "This test creates a makefile with two double-colon default
+rules. The first rule has a series of sleep and echo commands
+intended to run in series. The second and third have just an
+echo statement. When make is called in this test, it is given
+the -j option with a value of 4. This tells make that it may
+start up to four jobs simultaneously. In this case, since the
+first command is a sleep command, the output of the second
+and third commands will appear before the first if indeed
+make is running all of these commands in parallel.";
+
+if (!$parallel_jobs) {
+ return -1;
+}
+
+if ($vos) {
+ $sleep_command = "sleep -seconds";
+}
+else {
+ $sleep_command = "sleep";
+}
+
+
+run_make_test("
+all : def_1 def_2 def_3
+def_1 : ; \@echo ONE; $sleep_command 3 ; echo TWO
+def_2 : ; \@$sleep_command 2 ; echo THREE
+def_3 : ; \@$sleep_command 1 ; echo FOUR",
+ '-j4', "ONE\nFOUR\nTHREE\nTWO");
+
+# Test parallelism with included files. Here we sleep/echo while
+# building the included files, to test that they are being built in
+# parallel.
+run_make_test("
+all: 1 2; \@echo success
+-include 1.inc 2.inc
+1.inc: ; \@echo ONE.inc; $sleep_command 2; echo TWO.inc; echo '1: ; \@echo ONE; $sleep_command 2; echo TWO' > \$\@
+2.inc: ; \@$sleep_command 1; echo THREE.inc; echo '2: ; \@$sleep_command 1; echo THREE' > \$\@",
+ "-j4",
+ "ONE.inc\nTHREE.inc\nTWO.inc\nONE\nTHREE\nTWO\nsuccess\n", 0, 7);
+
+rmfiles(qw(1.inc 2.inc));
+
+
+# Test parallelism with included files--this time recurse first and make
+# sure the jobserver works.
+run_make_test("
+recurse: ; \@\$(MAKE) --no-print-directory -f #MAKEFILE# INC=yes all
+all: 1 2; \@echo success
+
+INC = no
+ifeq (\$(INC),yes)
+-include 1.inc 2.inc
+endif
+
+1.inc: ; \@echo ONE.inc; $sleep_command 2; echo TWO.inc; echo '1: ; \@echo ONE; $sleep_command 2; echo TWO' > \$\@
+2.inc: ; \@$sleep_command 1; echo THREE.inc; echo '2: ; \@$sleep_command 1; echo THREE' > \$\@",
+ "-j4",
+ "ONE.inc\nTHREE.inc\nTWO.inc\nONE\nTHREE\nTWO\nsuccess\n", 0, 7);
+
+rmfiles(qw(1.inc 2.inc));
+
+# Grant Taylor reports a problem where tokens can be lost (not written back
+# to the pipe when they should be): this happened when there is a $(shell ...)
+# function in an exported recursive variable. I added some code to check
+# for this situation and print a message if it occurred. This test used
+# to trigger this code when I added it but no longer does after the fix.
+# We have to increase the timeout from the default (5s) on this test.
+
+run_make_test("
+export HI = \$(shell \$(\$\@.CMD))
+first.CMD = echo hi
+second.CMD = $sleep_command 4; echo hi
+
+.PHONY: all first second
+all: first second
+
+first second: ; \@echo \$\@; $sleep_command 1; echo \$\@",
+ '-j2', "first\nfirst\nsecond\nsecond", 0, 7);
+
+# Michael Matz <matz@suse.de> reported a bug where if make is running in
+# parallel without -k and two jobs die in a row, but not too close to each
+# other, then make will quit without waiting for the rest of the jobs to die.
+
+run_make_test("
+.PHONY: all fail.1 fail.2 fail.3 ok
+all: fail.1 ok fail.2 fail.3
+
+fail.1 fail.2 fail.3:
+ \@$sleep_command \$(patsubst fail.%,%,\$\@)
+ \@echo Fail
+ \@exit 1
+
+ok:
+ \@$sleep_command 4
+ \@echo Ok done",
+ '-rR -j5', "Fail
+#MAKE#: *** [#MAKEFILE#:8: fail.1] Error 1
+#MAKE#: *** Waiting for unfinished jobs....
+Fail
+#MAKE#: *** [#MAKEFILE#:8: fail.2] Error 1
+Fail
+#MAKE#: *** [#MAKEFILE#:8: fail.3] Error 1
+Ok done",
+ 512);
+
+
+# Test for Savannah bug #15641.
+#
+run_make_test('
+.PHONY: all
+all:; @:
+
+-include foo.d
+
+foo.d: comp
+ @echo building $@
+
+comp: mod_a.o mod_b.o; @:
+
+mod_a.o mod_b.o:
+ @exit 1
+', '-j2', '');
+
+
+# TEST #9 -- Savannah bugs 3330 and 15919
+# In earlier versions of make this will either give the wrong answer, or hang.
+
+utouch(-10, 'target');
+run_make_test('target: intermed ; touch $@
+
+.INTERMEDIATE: intermed
+intermed: | phony ; touch $@
+
+.PHONY: phony
+phony: ; : phony', '-rR -j', ': phony');
+rmfiles('target');
+
+# TEST #11: Make sure -jN from MAKEFLAGS is processed even when we re-exec
+# See Savannah bug #33873
+
+$extraENV{MAKEFLAGS} = '-j4';
+
+run_make_test(q!
+things = thing1 thing2
+all: $(things)
+thing1:; @sleep 1; echo '$@ start'; sleep 2; echo '$@ end'
+thing2:; @echo '$@ start'; sleep 2; echo '$@ end'
+-include inc.mk
+inc.mk: ; @touch $@
+!,
+ '', "thing2 start\nthing1 start\nthing2 end\nthing1 end\n");
+
+delete $extraENV{MAKEFLAGS};
+rmfiles('inc.mk');
+
+# Ensure intermediate/secondary files are not pruned incorrectly.
+# See Savannah bug #30653
+
+utouch(-15, 'file2');
+utouch(-10, 'file4');
+utouch(-5, 'file1');
+
+run_make_test(q!
+.INTERMEDIATE: file3
+file4: file3 ; @mv -f $< $@
+file3: file2 ; touch $@
+file2: file1 ; @touch $@
+!,
+ '--no-print-directory -j2', "touch file3");
+
+rmfiles('file1', 'file2', 'file3', 'file4');
+
+# Make sure that all jobserver FDs are closed if we need to re-exec the
+# master copy.
+#
+# First, find the "default" file descriptors we normally use
+# Then make sure they're still used.
+#
+# Right now we don't have a way to run a makefile and capture the output
+# without checking it, so we can't really write this test.
+
+# run_make_test('
+# submake: ; @$(MAKE) --no-print-directory -f #MAKEFILE# fdprint 5>output
+
+# dependfile: ; @echo FOO=bar > $@
+
+# INCL := true
+
+# FOO=foo
+# ifeq ($(INCL),true)
+# -include dependfile
+# endif
+
+# fdprint: ; @echo $(filter --jobserver%,$(MAKEFLAGS))
+
+# recurse: ; @$(MAKE) --no-print-directory -f #MAKEFILE# submake INCL=true',
+# '-j2 INCL=false fdprint',
+# 'bar');
+
+# rmfiles(qw(dependfile output));
+
+
+# # Do it again, this time where the include is done by the non-master make.
+# run_make_test(undef, '-j2 recurse INCL=false', 'bar');
+
+# rmfiles(qw(dependfile output));
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/patspecific_vars b/tests/scripts/features/patspecific_vars
new file mode 100644
index 0000000..a530bba
--- /dev/null
+++ b/tests/scripts/features/patspecific_vars
@@ -0,0 +1,148 @@
+# -*-perl-*-
+$description = "Test pattern-specific variable settings.";
+
+$details = "\
+Create a makefile containing various flavors of pattern-specific variable
+settings, override and non-override, and using various variable expansion
+rules, semicolon interference, etc.";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+all: one.x two.x three.x
+FOO = foo
+BAR = bar
+BAZ = baz
+one.x: override FOO = one
+%.x: BAR = two
+t%.x: BAR = four
+thr% : override BAZ = three
+one.x two.x three.x: ; @echo $@: $(FOO) $(BAR) $(BAZ)
+four.x: baz ; @echo $@: $(FOO) $(BAR) $(BAZ)
+baz: ; @echo $@: $(FOO) $(BAR) $(BAZ)
+
+# test matching multiple patterns
+a%: AAA = aaa
+%b: BBB = ccc
+a%: BBB += ddd
+%b: AAA ?= xxx
+%b: AAA += bbb
+.PHONY: ab
+ab: ; @echo $(AAA); echo $(BBB)
+EOF
+
+close(MAKEFILE);
+
+
+# TEST #1 -- basics
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "one.x: one two baz\ntwo.x: foo four baz\nthree.x: foo four three\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #2 -- try the override feature
+
+&run_make_with_options($makefile, "BAZ=five", &get_logfile);
+$answer = "one.x: one two five\ntwo.x: foo four five\nthree.x: foo four three\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #3 -- make sure patterns are inherited properly
+
+&run_make_with_options($makefile, "four.x", &get_logfile);
+$answer = "baz: foo two baz\nfour.x: foo two baz\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #4 -- test multiple patterns matching the same target
+
+&run_make_with_options($makefile, "ab", &get_logfile);
+$answer = "aaa bbb\nccc ddd\n";
+&compare_output($answer,&get_logfile(1));
+
+# TEST #5 -- test pattern-specific exported variables
+#
+run_make_test('
+/%: export foo := foo
+
+/bar:
+ @echo $(foo) $$foo
+', '', 'foo foo');
+
+
+# TEST #6 -- test expansion of pattern-specific simple variables
+#
+run_make_test('
+.PHONY: all
+
+all: inherit := good $$t
+all: bar baz
+
+b%: pattern := good $$t
+
+global := original $$t
+
+
+# normal target
+#
+ifdef rec
+bar: a = global: $(global) pattern: $(pattern) inherit: $(inherit)
+else
+bar: a := global: $(global) pattern: $(pattern) inherit: $(inherit)
+endif
+
+bar: ; @echo \'normal: $a;\'
+
+
+# pattern target
+#
+ifdef rec
+%z: a = global: $(global) pattern: $(pattern) inherit: $(inherit)
+else
+%z: a := global: $(global) pattern: $(pattern) inherit: $(inherit)
+endif
+
+%z: ; @echo \'pattern: $a;\'
+
+
+global := new $$t
+',
+'',
+'normal: global: original $t pattern: inherit: ;
+pattern: global: original $t pattern: inherit: ;');
+
+
+# TEST #7 -- test expansion of pattern-specific recursive variables
+#
+run_make_test(undef, # reuse previous makefile
+'rec=1',
+'normal: global: new $t pattern: good $t inherit: good $t;
+pattern: global: new $t pattern: good $t inherit: good $t;');
+
+# TEST #8: override in pattern-specific variables
+
+run_make_test('
+a%: override FOO += f1
+a%: FOO += f2
+ab: ; @echo "$(FOO)"
+',
+ '', "f1\n");
+
+run_make_test(undef, 'FOO=C', "C f1\n");
+
+# TEST #9: Test shortest stem selection in pattern-specific variables.
+
+run_make_test('
+%-mt.x: x := two
+%.x: x := one
+
+all: foo.x foo-mt.x
+
+foo.x: ;@echo $x
+foo-mt.x: ;@echo $x
+',
+'',
+"one\ntwo");
+
+1;
diff --git a/tests/scripts/features/patternrules b/tests/scripts/features/patternrules
new file mode 100644
index 0000000..c7ae7cf
--- /dev/null
+++ b/tests/scripts/features/patternrules
@@ -0,0 +1,228 @@
+# -*-perl-*-
+
+$description = "Test pattern rules.";
+
+$details = "";
+
+use Cwd;
+
+$dir = cwd;
+$dir =~ s,.*/([^/]+)$,../$1,;
+
+
+# TEST #0: Make sure that multiple patterns where the same target
+# can be built are searched even if the first one fails
+# to match properly.
+#
+
+run_make_test(q!
+.PHONY: all
+
+all: case.1 case.2 case.3
+
+# We can't have this, due to "Implicit Rule Search Algorithm" step 5c
+#xxx: void
+
+# 1 - existing file
+%.1: void
+ @exit 1
+%.1: #MAKEFILE#
+ @exit 0
+
+# 2 - phony
+%.2: void
+ @exit 1
+%.2: 2.phony
+ @exit 0
+.PHONY: 2.phony
+
+# 3 - implicit-phony
+%.3: void
+ @exit 1
+%.3: 3.implicit-phony
+ @exit 0
+
+3.implicit-phony:
+!, '', '');
+
+# TEST #1: make sure files that are built via implicit rules are marked
+# as targets (Savannah bug #12202).
+#
+run_make_test('
+TARGETS := foo foo.out
+
+.PHONY: all foo.in
+
+all: $(TARGETS)
+
+%: %.in
+ @echo $@
+
+%.out: %
+ @echo $@
+
+foo.in: ; @:
+
+',
+'',
+'foo
+foo.out');
+
+
+# TEST #2: make sure intermediate files that also happened to be
+# prerequisites are not removed (Savannah bug #12267).
+#
+run_make_test('
+$(dir)/foo.o:
+
+$(dir)/foo.y:
+ @echo $@
+
+%.c: %.y
+ touch $@
+
+%.o: %.c
+ @echo $@
+
+.PHONY: install
+install: $(dir)/foo.c
+
+',
+"dir=$dir",
+"$dir/foo.y
+touch $dir/foo.c
+$dir/foo.o");
+
+unlink("$dir/foo.c");
+
+
+# TEST #3: make sure precious flag is set properly for targets
+# that are built via implicit rules (Savannah bug #13218).
+#
+run_make_test('
+.DELETE_ON_ERROR:
+
+.PRECIOUS: %.bar
+
+%.bar:; @touch $@ && exit 1
+
+$(dir)/foo.bar:
+
+',
+"dir=$dir",
+"#MAKE#: *** [#MAKEFILE#:6: $dir/foo.bar] Error 1",
+512);
+
+unlink("$dir/foo.bar");
+
+
+# TEST #4: make sure targets of a matched implicit pattern rule are
+# never considered intermediate (Savannah bug #13022).
+#
+run_make_test('
+.PHONY: all
+all: foo.c foo.o
+
+%.h %.c: %.in
+ touch $*.h
+ touch $*.c
+
+%.o: %.c %.h
+ echo $+ >$@
+
+%.o: %.c
+ @echo wrong rule
+
+foo.in:
+ touch $@
+
+',
+'',
+'touch foo.in
+touch foo.h
+touch foo.c
+echo foo.c foo.h >foo.o');
+
+unlink('foo.in', 'foo.h', 'foo.c', 'foo.o');
+
+# TEST #5: make sure both prefix and suffix patterns work with multiple
+# target patterns (Savannah bug #26593).
+#
+run_make_test('
+all: foo.s1 foo.s2 p1.foo p2.foo
+
+p1.% p2.%: %.orig
+ @echo $@
+%.s1 %.s2: %.orig
+ @echo $@
+
+.PHONY: foo.orig
+',
+ '', "foo.s1\np1.foo\n");
+
+# TEST 6: Make sure that non-target files are still eligible to be created
+# as part of implicit rule chaining. Savannah bug #17752.
+
+run_make_test(q!
+BIN = xyz
+COPY = $(BIN).cp
+SRC = $(BIN).c
+allbroken: $(COPY) $(BIN) ; @echo ok
+$(SRC): ; @echo 'main(){}' > $@
+%.cp: % ; @cp $< $@
+% : %.c ; @cp $< $@
+clean: ; @rm -rf $(SRC) $(COPY) $(BIN)
+!,
+ '', "ok\n");
+
+unlink(qw(xyz xyz.cp xyz.c));
+
+# TEST 7: Make sure that all prereqs of all "also_make" targets get created
+# before any of the things that depend on any of them. Savannah bug #19108.
+
+run_make_test(q!
+final: x ; @echo $@
+x: x.t1 x.t2 ; @echo $@
+x.t2: dep
+dep: ; @echo $@
+%.t1 %.t2: ; @echo $*.t1 ; echo $*.t2
+!,
+ '', "dep\nx.t1\nx.t2\nx\nfinal\n");
+
+
+# TEST 8: Verify we can remove pattern rules. Savannah bug #18622.
+
+my @f = (qw(foo.w foo.ch));
+touch(@f);
+
+run_make_test(q!
+CWEAVE := :
+
+# Disable builtin rules
+%.tex : %.w
+%.tex : %.w %.ch
+!,
+ 'foo.tex',
+ "#MAKE#: *** No rule to make target 'foo.tex'. Stop.", 512);
+
+unlink(@f);
+
+# TEST #9: Test shortest stem selection in pattern rules.
+
+run_make_test('
+%.x: ;@echo one
+%-mt.x: ;@echo two
+
+all: foo.x foo-mt.x
+',
+'',
+"one\ntwo");
+
+1;
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/features/quoting b/tests/scripts/features/quoting
new file mode 100644
index 0000000..916681c
--- /dev/null
+++ b/tests/scripts/features/quoting
@@ -0,0 +1,32 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test using \n" .
+ "quotes within makefiles.";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<'EOM';
+SHELL = /bin/sh
+TEXFONTS = NICEFONT
+DEFINES = -DDEFAULT_TFM_PATH=\".:$(TEXFONTS)\"
+test: ; @"echo" 'DEFINES = $(DEFINES)'
+EOM
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+
+# Create the answer to what should be produced by this Makefile
+$answer = 'DEFINES = -DDEFAULT_TFM_PATH=\".:NICEFONT\"' . "\n";
+
+# COMPARE RESULTS
+
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/features/recursion b/tests/scripts/features/recursion
new file mode 100644
index 0000000..fd5e351
--- /dev/null
+++ b/tests/scripts/features/recursion
@@ -0,0 +1,55 @@
+# -*-perl-*-
+$description = "Test recursion.";
+
+$details = "DETAILS";
+
+# Test some basic recursion.
+run_make_test('
+all:
+ $(MAKE) -f #MAKEFILE# foo
+foo:
+ @echo $(MAKE)
+ @echo MAKELEVEL = $(MAKELEVEL)
+ $(MAKE) -f #MAKEFILE# last
+last:
+ @echo $(MAKE)
+ @echo MAKELEVEL = $(MAKELEVEL)
+ @echo THE END
+',
+ ('CFLAGS=-O -w' . ($parallel_jobs ? ' -j 2' : '')),
+ ($vos
+ ? "#MAKE#: Entering directory '#PWD#'
+make 'CFLAGS=-O' -f #MAKEFILE# foo
+make CFLAGS=-O
+MAKELEVEL = 0
+make 'CFLAGS=-O' -f #MAKEFILE# last
+make CFLAGS=-O
+MAKELEVEL = 0
+THE END
+#MAKE#: Leaving directory '#PWD#'"
+ : "#MAKE#: Entering directory '#PWD#'
+#MAKEPATH# -f #MAKEFILE# foo
+#MAKE#[1]: Entering directory '#PWD#'
+#MAKEPATH#
+MAKELEVEL = 1
+#MAKEPATH# -f #MAKEFILE# last
+#MAKE#[2]: Entering directory '#PWD#'
+#MAKEPATH#
+MAKELEVEL = 2
+THE END
+#MAKE#[2]: Leaving directory '#PWD#'
+#MAKE#[1]: Leaving directory '#PWD#'
+#MAKE#: Leaving directory '#PWD#'"));
+
+
+# Test command line overrides.
+run_make_test('
+recur: all ; @$(MAKE) --no-print-directory -f #MAKEFILE# a=AA all
+all: ; @echo "MAKEOVERRIDES = $(MAKEOVERRIDES)"
+',
+ 'a=ZZ',
+ 'MAKEOVERRIDES = a=ZZ
+MAKEOVERRIDES = a=AA
+');
+
+1;
diff --git a/tests/scripts/features/reinvoke b/tests/scripts/features/reinvoke
new file mode 100644
index 0000000..eb1a349
--- /dev/null
+++ b/tests/scripts/features/reinvoke
@@ -0,0 +1,80 @@
+# -*-mode: perl-*-
+
+$description = "Test GNU make's auto-reinvocation feature.";
+
+$details = "\
+If the makefile or one it includes can be rebuilt then it is, and make
+is reinvoked. We create a rule to rebuild the makefile from a temp
+file, then touch the temp file to make it newer than the makefile.";
+
+$omkfile = $makefile;
+
+&utouch(-600, 'incl.mk');
+# For some reason if we don't do this then the test fails for systems
+# with sub-second timestamps, maybe + NFS? Not sure.
+&utouch(-1, 'incl-1.mk');
+
+run_make_test('
+all: ; @echo running rules.
+
+#MAKEFILE# incl.mk: incl-1.mk
+ @echo rebuilding $@
+ @echo >> $@
+
+include incl.mk',
+ '', "rebuilding incl.mk\nrunning rules.\n");
+
+# Make sure updating the makefile itself also works
+
+&utouch(-600, $omkfile);
+
+run_make_test(undef, '', "rebuilding #MAKEFILE#\nrunning rules.\n");
+
+&rmfiles('incl.mk', 'incl-1.mk');
+
+
+# In this test we create an included file that's out-of-date, but then
+# the rule doesn't update it. Make shouldn't re-exec.
+
+&utouch(-600, 'b','a');
+#&utouch(-10, 'a');
+&touch('c');
+
+run_make_test('
+SHELL = /bin/sh
+
+all: ; @echo hello
+
+a : b ; echo >> $@
+
+b : c ; [ -f $@ ] || echo >> $@
+
+c: ; echo >> $@
+
+include $(F)',
+ 'F=a', "[ -f b ] || echo >> b\nhello\n");
+
+# Now try with the file we're not updating being the actual file we're
+# including: this and the previous one test different parts of the code.
+
+run_make_test(undef, 'F=b', "[ -f b ] || echo >> b\nhello\n")
+
+&rmfiles('a','b','c');
+
+# Ensure command line variables are preserved properly across re-exec
+# Tests for Savannah bug #30723
+
+run_make_test('
+ifdef RECURSE
+-include foo30723
+endif
+recurse: ; @$(MAKE) -f $(MAKEFILE_LIST) RECURSE=1 test
+test: ; @echo F.O=$(F.O)
+foo30723: ; @touch $@
+',
+ '--no-print-directory F.O=bar', "F.O=bar\n");
+
+unlink('foo30723');
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/rule_glob b/tests/scripts/features/rule_glob
new file mode 100644
index 0000000..2d377e7
--- /dev/null
+++ b/tests/scripts/features/rule_glob
@@ -0,0 +1,37 @@
+# -*-perl-*-
+
+$description = "Test globbing in targets and prerequisites.";
+
+$details = "";
+
+touch(qw(a.one a.two a.three));
+
+# Test wildcards in regular targets and prerequisites
+run_make_test(q{
+.PHONY: all a.one a.two a.three
+all: a.one* a.t[a-z0-9]o a.th[!q]ee
+a.o[Nn][Ee] a.t*: ; @echo $@
+},
+ '', "a.one\na.two\na.three");
+
+# Test wildcards in pattern targets and prerequisites
+run_make_test(q{
+.PHONY: all
+all: a.four
+%.four : %.t* ; @echo $@: $(sort $^)
+},
+ '', "a.four: a.three a.two");
+
+# Test wildcards in second expansion targets and prerequisites
+run_make_test(q{
+.PHONY: all
+all: a.four
+.SECONDEXPANSION:
+%.four : $$(sort %.t*) ; @echo $@: $(sort $^)
+},
+ '', "a.four: a.three a.two");
+
+unlink(qw(a.one a.two a.three));
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/se_explicit b/tests/scripts/features/se_explicit
new file mode 100644
index 0000000..790017a
--- /dev/null
+++ b/tests/scripts/features/se_explicit
@@ -0,0 +1,167 @@
+# -*-perl-*-
+$description = "Test second expansion in ordinary rules.";
+
+$details = "";
+
+# TEST #0: Test handing of '$' in prerequisites with and without second
+# expansion.
+
+# If we don't support archives then the prerequisite is different
+my $prereq = exists $FEATURES{'archives'} ? '$' : '$(PRE)';
+
+run_make_test(q!
+ifdef SE
+ .SECONDEXPANSION:
+endif
+foo$$bar: bar$$baz bar$$biz ; @echo '$@ : $^'
+PRE = one two
+bar$$baz: $$(PRE)
+baraz: $$(PRE)
+PRE = three four
+.DEFAULT: ; @echo '$@'
+!,
+ '',
+ "$prereq\nbar\$biz\nfoo\$bar : bar\$baz bar\$biz");
+
+run_make_test(undef, 'SE=1', "three\nfour\nbariz\nfoo\$bar : baraz bariz");
+
+# TEST #1: automatic variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+foo: bar baz
+
+foo: biz | buz
+
+foo: $$@.1 \
+ $$<.2 \
+ $$(addsuffix .3,$$^) \
+ $$(addsuffix .4,$$+) \
+ $$|.5 \
+ $$*.6
+
+!,
+'',
+'bar
+baz
+biz
+buz
+foo.1
+bar.2
+bar.3
+baz.3
+biz.3
+bar.4
+baz.4
+biz.4
+buz.5
+.6
+');
+
+
+# Test #2: target/pattern -specific variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+foo.x: $$a $$b
+
+foo.x: a := bar
+
+%.x: b := baz
+!,
+'',
+'bar
+baz
+');
+
+
+# Test #3: order of prerequisites.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+all: foo bar baz
+
+# Subtest #1
+foo: foo.1; @:
+foo: foo.2
+foo: foo.3
+
+# Subtest #2
+bar: bar.2
+bar: bar.1; @:
+bar: bar.3
+
+# Subtest #3
+baz: baz.1
+baz: baz.2
+baz: ; @:
+!,
+'',
+'foo.1
+foo.2
+foo.3
+bar.1
+bar.2
+bar.3
+baz.1
+baz.2
+');
+
+# TEST #4: eval in a context where there is no reading_file
+run_make_test(q!
+.SECONDEXPANSION:
+all : $$(eval $$(info test))
+!,
+ '', "test\n#MAKE#: Nothing to be done for 'all'.\n");
+
+# TEST #5: (NEGATIVE) catch eval in a prereq list trying to create new
+# target/prereq relationships.
+
+run_make_test(q!
+.SECONDEXPANSION:
+proj1.exe : proj1.o $$(eval $$(test))
+define test
+proj1.o : proj1.c
+proj1.c: proj1.h
+endef
+!,
+ '', "#MAKE#: *** prerequisites cannot be defined in recipes. Stop.\n", 512);
+
+
+# Automatic $$+ variable expansion issue. Savannah bug #25780
+run_make_test(q!
+all : foo foo
+.SECONDEXPANSION:
+all : $$+ ; @echo '$+'
+foo : ;
+!,
+ '', "foo foo foo foo\n");
+
+
+# Automatic $$+ variable expansion issue. Savannah bug #25780
+run_make_test(q!
+all : bar bar
+bar : ;
+q%x : ;
+.SECONDEXPANSION:
+a%l: q1x $$+ q2x ; @echo '$+'
+!,
+ '', "q1x bar bar q2x bar bar\n");
+
+
+# Allow patsubst shorthand in second expansion context.
+# Requires the colon to be quoted. Savannah bug #16545
+run_make_test(q!
+.PHONY: foo.bar
+.SECONDEXPANSION:
+foo: $$(@\\:%=%.bar); @echo '$^'
+!,
+ '', "foo.bar\n");
+
+1;
diff --git a/tests/scripts/features/se_implicit b/tests/scripts/features/se_implicit
new file mode 100644
index 0000000..ec09d8d
--- /dev/null
+++ b/tests/scripts/features/se_implicit
@@ -0,0 +1,260 @@
+# -*-perl-*-
+$description = "Test second expansion in ordinary rules.";
+
+$details = "";
+
+use Cwd;
+
+$dir = cwd;
+$dir =~ s,.*/([^/]+)$,../$1,;
+
+
+# Test #1: automatic variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+foo.a: bar baz
+
+foo.a: biz | buz
+
+foo.%: 1.$$@ \
+ 2.$$< \
+ $$(addprefix 3.,$$^) \
+ $$(addprefix 4.,$$+) \
+ 5.$$| \
+ 6.$$*
+ @:
+
+1.foo.a \
+2.bar \
+3.bar \
+3.baz \
+3.biz \
+4.bar \
+4.baz \
+4.biz \
+5.buz \
+6.a:
+ @echo '$@'
+
+!,
+'',
+'1.foo.a
+2.bar
+3.bar
+3.baz
+3.biz
+4.bar
+4.baz
+4.biz
+5.buz
+6.a
+bar
+baz
+biz
+buz
+');
+
+
+# Test #2: target/pattern -specific variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+foo.x:
+
+foo.%: $$(%_a) $$(%_b) bar
+ @:
+
+foo.x: x_a := bar
+
+%.x: x_b := baz
+
+bar baz: ; @echo '$@'
+!,
+ '', "bar\nbaz\n");
+
+
+# Test #3: order of prerequisites.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+all: foo bar baz
+
+
+# Subtest #1
+#
+%oo: %oo.1; @:
+
+foo: foo.2
+
+foo: foo.3
+
+foo.1: ; @echo '$@'
+
+
+# Subtest #2
+#
+bar: bar.2
+
+%ar: %ar.1; @:
+
+bar: bar.3
+
+bar.1: ; @echo '$@'
+
+
+# Subtest #3
+#
+baz: baz.1
+
+baz: baz.2
+
+%az: ; @:
+!,
+ '',
+'foo.1
+foo.2
+foo.3
+bar.1
+bar.2
+bar.3
+baz.1
+baz.2
+');
+
+
+# Test #4: stem splitting logic.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+$(dir)/tmp/bar.o:
+
+$(dir)/tmp/foo/bar.c: ; @echo '$@'
+$(dir)/tmp/bar/bar.c: ; @echo '$@'
+foo.h: ; @echo '$@'
+
+%.o: $$(addsuffix /%.c,foo bar) foo.h
+ @echo '$@: {$<} $^'
+!,
+ "dir=$dir", "$dir/tmp/foo/bar.c
+$dir/tmp/bar/bar.c
+foo.h
+$dir/tmp/bar.o: {$dir/tmp/foo/bar.c} $dir/tmp/foo/bar.c $dir/tmp/bar/bar.c foo.h
+");
+
+
+# Test #5: stem splitting logic and order-only prerequisites.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+$(dir)/tmp/foo.o: $(dir)/tmp/foo.c
+$(dir)/tmp/foo.c: ; @echo '$@'
+bar.h: ; @echo '$@'
+
+%.o: %.c|bar.h
+ @echo '$@: {$<} {$|} $^'
+
+!,
+ "dir=$dir", "$dir/tmp/foo.c
+bar.h
+$dir/tmp/foo.o: {$dir/tmp/foo.c} {bar.h} $dir/tmp/foo.c
+");
+
+
+# Test #6: lack of implicit prerequisites.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+foo.o: foo.c
+foo.c: ; @echo '$@'
+
+%.o:
+ @echo '$@: {$<} $^'
+!,
+ '', "foo.c\nfoo.o: {foo.c} foo.c\n");
+
+
+# Test #7: Test stem from the middle of the name.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+foobarbaz:
+
+foo%baz: % $$*.1
+ @echo '$*'
+
+bar bar.1:
+ @echo '$@'
+!,
+ '', "bar\nbar.1\nbar\n");
+
+
+# Test #8: Make sure stem triple-expansion does not happen.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+foo$$bar:
+
+f%r: % $$*.1
+ @echo '$*'
+
+oo$$ba oo$$ba.1:
+ @echo '$@'
+!,
+ '', 'oo$ba
+oo$ba.1
+oo$ba
+');
+
+# Test #9: Check the value of $^
+run_make_test(q!
+.SECONDEXPANSION:
+
+%.so: | $$(extra) ; @echo $^
+
+foo.so: extra := foo.o
+foo.so:
+foo.o:
+!,
+ '', "\n");
+
+# Test #10: Test second expansion with second expansion prerequisites
+# Ensures pattern_search() recurses with SE prereqs.
+touch('a');
+run_make_test(q!
+.SECONDEXPANSION:
+sim_base_rgg := just_a_name
+sim_base_src := a
+sim_base_f := a a a
+sim_%.f: $${sim_$$*_f}
+ echo $@
+sim_%.src: $${sim_$$*_src}
+ echo $@
+sim_%: \
+ $$(if $$(sim_$$*_src),sim_%.src) \
+ $$(if $$(sim_$$*_f),sim_%.f) \
+ $$(if $$(sim_$$*_rgg),$$(sim_$$*_rgg).s)
+ echo $@
+!,
+ '-s sim_base', "#MAKE#: *** No rule to make target 'sim_base'. Stop.", 512);
+
+unlink('a');
+
+# Ensure that order-only tokens embedded in second expansions are parsed
+run_make_test(q!
+.SECONDEXPANSION:
+PREREQS=p1|p2
+P2=p2
+all : foo bar
+f%o: $$(PREREQS) ; @echo '$@' from '$^' and '$|'
+b%r: p1|$$(P2) ; @echo '$@' from '$^' and '$|'
+p% : ; : $@
+!,
+ "", ": p1\n: p2\nfoo from p1 and p2\nbar from p1 and p2\n");
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/se_statpat b/tests/scripts/features/se_statpat
new file mode 100644
index 0000000..b1e59e1
--- /dev/null
+++ b/tests/scripts/features/se_statpat
@@ -0,0 +1,107 @@
+# -*-perl-*-
+$description = "Test second expansion in static pattern rules.";
+
+$details = "";
+
+# Test #1: automatic variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+foo.a foo.b: foo.%: bar.% baz.%
+foo.a foo.b: foo.%: biz.% | buz.%
+
+foo.a foo.b: foo.%: $$@.1 \
+ $$<.2 \
+ $$(addsuffix .3,$$^) \
+ $$(addsuffix .4,$$+) \
+ $$|.5 \
+ $$*.6
+!,
+ '', 'bar.a
+baz.a
+biz.a
+buz.a
+foo.a.1
+bar.a.2
+bar.a.3
+baz.a.3
+biz.a.3
+bar.a.4
+baz.a.4
+biz.a.4
+buz.a.5
+a.6
+');
+
+
+# Test #2: target/pattern -specific variables.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+foo.x foo.y: foo.%: $$(%_a) $$($$*_b)
+
+foo.x: x_a := bar
+
+%.x: x_b := baz
+!,
+ '', "bar\nbaz\n");
+
+
+# Test #3: order of prerequisites.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+.DEFAULT: ; @echo '$@'
+
+all: foo.a bar.a baz.a
+
+# Subtest #1
+foo.a foo.b: foo.%: foo.%.1; @:
+foo.a foo.b: foo.%: foo.%.2
+foo.a foo.b: foo.%: foo.%.3
+
+
+# Subtest #2
+bar.a bar.b: bar.%: bar.%.2
+bar.a bar.b: bar.%: bar.%.1; @:
+bar.a bar.b: bar.%: bar.%.3
+
+
+# Subtest #3
+baz.a baz.b: baz.%: baz.%.1
+baz.a baz.b: baz.%: baz.%.2
+baz.a baz.b: ; @:
+!,
+ '', 'foo.a.1
+foo.a.2
+foo.a.3
+bar.a.1
+bar.a.2
+bar.a.3
+baz.a.1
+baz.a.2
+');
+
+
+# Test #4: Make sure stem triple-expansion does not happen.
+#
+run_make_test(q!
+.SECONDEXPANSION:
+foo$$bar: f%r: % $$*.1
+ @echo '$*'
+
+oo$$ba oo$$ba.1:
+ @echo '$@'
+!,
+ '', 'oo$ba
+oo$ba.1
+oo$ba
+');
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/shell_assignment b/tests/scripts/features/shell_assignment
new file mode 100644
index 0000000..686e4bd
--- /dev/null
+++ b/tests/scripts/features/shell_assignment
@@ -0,0 +1,65 @@
+# -*-perl-*-
+
+$description = "Test BSD-style shell assignments (VAR != VAL) for variables.";
+
+$details = "";
+
+# TEST 0: Basic shell assignment (!=).
+
+run_make_test('
+.POSIX:
+
+demo1!=printf \' 1 2 3\n4\n\n5 \n \n 6\n\n\n\n\'
+demo2 != printf \'7 8\n \'
+demo3 != printf \'$$(demo2)\'
+demo4 != printf \' 2 3 \n\'
+demo5 != printf \' 2 3 \n\n\'
+all: ; @echo "<$(demo1)> <$(demo2)> <$(demo3)> <$(demo4)> <${demo5}>"
+',
+ '', "< 1 2 3 4 5 6 > <7 8 > <7 8 > < 2 3 > < 2 3 >\n");
+
+# TEST 1: Handle '#' the same way as BSD make
+
+run_make_test('
+foo1!=echo bar#baz
+hash != printf \'\043\'
+foo2!= echo "bar$(hash)baz"
+
+all: ; @echo "<$(foo1)> <$(hash)> <$(foo2)>"
+',
+ '', "<bar> <#> <bar#baz>\n");
+
+# TEST 2: shell assignment variables (from !=) should be recursive.
+# Note that variables are re-evaluated later, so the shell can output
+# a value like $(XYZZY) as part of !=. The $(XYZZY) will be EVALUATED
+# when the value containing it is evaluated. On the negative side, this
+# means if you don't want this, you need to escape dollar signs as $$.
+# On the positive side, it means that shell programs can output macros
+# that are then evaluated as they are traditionally evaluated.. and that
+# you can use traditional macro evaluation semantics to implement !=.
+
+run_make_test('
+XYZZY = fiddle-dee-dee
+dollar = $$
+VAR3 != printf \'%s\' \'$(dollar)(XYZZY)\'
+
+all: ; @echo "<$(VAR3)>"
+',
+ '', "<fiddle-dee-dee>\n");
+
+
+# TEST 3: Overrides invoke shell anyway; they just don't store the result
+# in a way that is visible.
+
+run_make_test('
+
+override != echo abc > ,abc ; cat ,abc
+
+all: ; @echo "<$(override)>" ; cat ,abc
+',
+ 'override=xyz', "<xyz>\nabc\n");
+
+unlink(',abc');
+
+
+1;
diff --git a/tests/scripts/features/statipattrules b/tests/scripts/features/statipattrules
new file mode 100644
index 0000000..3f363de
--- /dev/null
+++ b/tests/scripts/features/statipattrules
@@ -0,0 +1,111 @@
+# -*-perl-*-
+$description = "Test handling of static pattern rules.";
+
+$details = "\
+The makefile created in this test has three targets. The
+filter command is used to get those target names ending in
+.o and statically creates a compile command with the target
+name and the target name with .c. It also does the same thing
+for another target filtered with .elc and creates a command
+to emacs a .el file";
+
+&touch('bar.c', 'lose.c');
+
+# TEST #0
+# -------
+
+run_make_test('
+files = foo.elc bar.o lose.o
+
+$(filter %.o,$(files)): %.o: %.c ; @echo CC -c $(CFLAGS) $< -o $@
+
+$(filter %.elc,$(files)): %.elc: %.el ; @echo emacs $<
+',
+ '',
+ 'CC -c bar.c -o bar.o');
+
+# TEST #1
+# -------
+
+run_make_test(undef, 'lose.o', 'CC -c lose.c -o lose.o');
+
+
+# TEST #2
+# -------
+&touch("foo.el");
+
+run_make_test(undef, 'foo.elc', 'emacs foo.el');
+
+# Clean up after the first tests.
+unlink('foo.el', 'bar.c', 'lose.c');
+
+
+# TEST #3 -- PR/1670: don't core dump on invalid static pattern rules
+# -------
+
+run_make_test('
+.DEFAULT: ; @echo $@
+foo: foo%: % %.x % % % y.% % ; @echo $@
+',
+ '', ".x\ny.\nfoo");
+
+
+# TEST #4 -- bug #12180: core dump on a stat pattern rule with an empty
+# prerequisite list.
+run_make_test('
+foo.x bar.x: %.x : ; @echo $@
+
+',
+ '', 'foo.x');
+
+
+# TEST #5 -- bug #13881: double colon static pattern rule does not
+# substitute %.
+run_make_test('
+foo.bar:: %.bar: %.baz
+foo.baz: ;@:
+',
+ '', '');
+
+
+# TEST #6: make sure the second stem does not overwrite the first
+# perprerequisite's stem (Savannah bug #16053).
+#
+run_make_test('
+all.foo.bar: %.foo.bar: %.one
+
+all.foo.bar: %.bar: %.two
+
+all.foo.bar:
+ @echo $*
+ @echo $^
+
+.DEFAULT:;@:
+',
+'',
+'all.foo
+all.one all.foo.two');
+
+
+# TEST #7: make sure the second stem does not overwrite the first
+# perprerequisite's stem when second expansion is enabled
+# (Savannah bug #16053).
+#
+run_make_test('
+.SECONDEXPANSION:
+
+all.foo.bar: %.foo.bar: %.one $$*-one
+
+all.foo.bar: %.bar: %.two $$*-two
+
+all.foo.bar:
+ @echo $*
+ @echo $^
+
+.DEFAULT:;@:
+',
+'',
+'all.foo
+all.one all-one all.foo.two all.foo-two');
+
+1;
diff --git a/tests/scripts/features/targetvars b/tests/scripts/features/targetvars
new file mode 100644
index 0000000..a9b8dbe
--- /dev/null
+++ b/tests/scripts/features/targetvars
@@ -0,0 +1,273 @@
+# -*-perl-*-
+$description = "Test target-specific variable settings.";
+
+$details = "\
+Create a makefile containing various flavors of target-specific variable
+values, override and non-override, and using various variable expansion
+rules, semicolon interference, etc.";
+
+run_make_test('
+SHELL = /bin/sh
+export FOO = foo
+export BAR = bar
+one: override FOO = one
+one two: ; @echo $(FOO) $(BAR)
+two: BAR = two
+three: ; BAR=1000
+ @echo $(FOO) $(BAR)
+# Some things that shouldn not be target vars
+funk : override
+funk : override adelic
+adelic override : ; echo $@
+# Test per-target recursive variables
+four:FOO=x
+four:VAR$(FOO)=ok
+four: ; @echo "$(FOO) $(VAR$(FOO)) $(VAR) $(VARx)"
+five:FOO=x
+five six : VAR$(FOO)=good
+five six: ;@echo "$(FOO) $(VAR$(FOO)) $(VAR) $(VARx) $(VARfoo)"
+# Test per-target variable inheritance
+seven: eight
+seven eight: ; @echo $@: $(FOO) $(BAR)
+seven: BAR = seven
+seven: FOO = seven
+eight: BAR = eight
+# Test the export keyword with per-target variables
+nine: ; @echo $(FOO) $(BAR) $$FOO $$BAR
+nine: FOO = wallace
+nine-a: export BAZ = baz
+nine-a: ; @echo $$BAZ
+# Test = escaping
+EQ = =
+ten: one$(EQ)two
+ten: one $(EQ) two
+ten one$(EQ)two $(EQ):;@echo $@
+.PHONY: one two three four five six seven eight nine ten $(EQ) one$(EQ)two
+# Test target-specific vars with pattern/suffix rules
+QVAR = qvar
+RVAR = =
+%.q : ; @echo $(QVAR) $(RVAR)
+foo.q : RVAR += rvar
+# Target-specific vars with multiple LHS pattern rules
+%.r %.s %.t: ; @echo $(QVAR) $(RVAR) $(SVAR) $(TVAR)
+foo.r : RVAR += rvar
+foo.t : TVAR := $(QVAR)
+',
+ "one two three", "one bar\nfoo two\nBAR=1000\nfoo bar\n");
+
+# TEST #2
+
+run_make_test(undef, "one two FOO=1 BAR=2", "one 2\n1 2\n");
+
+# TEST #3
+
+run_make_test(undef, "four", "x ok ok\n");
+
+# TEST #4
+
+run_make_test(undef, "seven", "eight: seven eight\nseven: seven seven\n");
+
+# TEST #5
+
+run_make_test(undef, "nine", "wallace bar wallace bar\n");
+
+# TEST #5-a
+
+run_make_test(undef, "nine-a", "baz\n");
+
+# TEST #6
+
+run_make_test(undef, "ten", "one=two\none bar\n=\nfoo two\nten\n");
+
+# TEST #6
+
+run_make_test(undef, "foo.q bar.q", "qvar = rvar\nqvar =\n");
+
+# TEST #7
+
+run_make_test(undef, "foo.t bar.s", "qvar = qvar\nqvar =\n");
+
+
+# TEST #8
+# For PR/1378: Target-specific vars don't inherit correctly
+
+run_make_test('
+foo: FOO = foo
+bar: BAR = bar
+foo: bar
+bar: baz
+baz: ; @echo $(FOO) $(BAR)
+', "", "foo bar\n");
+
+# TEST #9
+# For PR/1380: Using += assignment in target-specific variables sometimes fails
+# Also PR/1831
+
+run_make_test('
+.PHONY: all one
+all: FOO += baz
+all: one; @echo $(FOO)
+
+FOO = bar
+
+one: FOO += biz
+one: FOO += boz
+one: ; @echo $(FOO)
+',
+ '', "bar baz biz boz\nbar baz\n");
+
+# Test #10
+
+run_make_test(undef, 'one', "bar biz boz\n");
+
+# Test #11
+# PR/1709: Test semicolons in target-specific variable values
+
+run_make_test('
+foo : FOO = ; ok
+foo : ; @echo "$(FOO)"
+',
+ '', "; ok\n");
+
+# Test #12
+# PR/2020: More hassles with += target-specific vars. I _really_ think
+# I nailed it this time :-/.
+
+run_make_test('
+.PHONY: a
+
+BLAH := foo
+COMMAND = echo $(BLAH)
+
+a: ; @$(COMMAND)
+
+a: BLAH := bar
+a: COMMAND += snafu $(BLAH)
+',
+ '', "bar snafu bar\n");
+
+# Test #13
+# Test double-colon rules with target-specific variable values
+
+run_make_test('
+W = bad
+X = bad
+foo: W = ok
+foo:: ; @echo $(W) $(X) $(Y) $(Z)
+foo:: ; @echo $(W) $(X) $(Y) $(Z)
+foo: X = ok
+
+Y = foo
+bar: foo
+bar: Y = bar
+
+Z = nopat
+ifdef PATTERN
+ fo% : Z = pat
+endif
+',
+ 'foo', "ok ok foo nopat\nok ok foo nopat\n");
+
+# Test #14
+# Test double-colon rules with target-specific variable values and
+# inheritance
+
+run_make_test(undef, 'bar', "ok ok bar nopat\nok ok bar nopat\n");
+
+# Test #15
+# Test double-colon rules with pattern-specific variable values
+
+run_make_test(undef, 'foo PATTERN=yes', "ok ok foo pat\nok ok foo pat\n");
+
+# Test #16
+# Test target-specific variables with very long command line
+# (> make default buffer length)
+
+run_make_test('
+base_metals_fmd_reports.sun5 base_metals_fmd_reports CreateRealPositions CreateMarginFunds deals_changed_since : BUILD_OBJ=$(shell if [ -f "build_information.generate" ]; then echo "$(OBJ_DIR)/build_information.o"; else echo "no build information"; fi )
+
+deals_changed_since: ; @echo $(BUILD_OBJ)
+',
+ '', "no build information\n");
+
+# TEST #17
+
+# Test a merge of set_lists for files, where one list is much longer
+# than the other. See Savannah bug #15757.
+
+mkdir('t1', 0777);
+touch('t1/rules.mk');
+
+run_make_test('
+VPATH = t1
+include rules.mk
+.PHONY: all
+all: foo.x
+foo.x : rules.mk ; @echo MYVAR=$(MYVAR) FOOVAR=$(FOOVAR) ALLVAR=$(ALLVAR)
+all: ALLVAR = xxx
+foo.x: FOOVAR = bar
+rules.mk : MYVAR = foo
+.INTERMEDIATE: foo.x rules.mk
+',
+ '-I t1', 'MYVAR= FOOVAR=bar ALLVAR=xxx');
+
+rmfiles('t1/rules.mk');
+rmdir('t1');
+
+# TEST #18
+
+# Test appending to a simple variable containing a "$": avoid a
+# double-expansion. See Savannah bug #15913.
+
+run_make_test('
+VAR := $$FOO
+foo: VAR += BAR
+foo: ; @echo '."'".'$(VAR)'."'".'
+',
+ '', '$FOO BAR');
+
+# TEST #19: Override with append variables
+
+run_make_test('
+a: override FOO += f1
+a: FOO += f2
+a: ; @echo "$(FOO)"
+',
+ '', "f1\n");
+
+run_make_test(undef, 'FOO=C', "C f1\n");
+
+# TEST #19: Conditional variables with command-line settings
+
+run_make_test('
+a: FOO ?= f1
+a: ; @echo "$(FOO)"
+',
+ '', "f1\n");
+
+run_make_test(undef, 'FOO=C', "C\n");
+
+# TEST #20: Check for continuation after semicolons
+
+run_make_test(q!
+a: A = 'hello;\
+world'
+a: ; @echo $(A)
+!,
+ '', "hello; world\n");
+
+# TEST #19: Test define/endef variables as target-specific vars
+
+# run_make_test('
+# define b
+# @echo global
+# endef
+# a: define b
+# @echo local
+# endef
+
+# a: ; $(b)
+# ',
+# '', "local\n");
+
+1;
diff --git a/tests/scripts/features/utf8 b/tests/scripts/features/utf8
new file mode 100644
index 0000000..54bc471
--- /dev/null
+++ b/tests/scripts/features/utf8
@@ -0,0 +1,11 @@
+# -*-perl-*-
+
+$description = "Test support for UTF-8.";
+
+$details = "";
+
+# Verify that the UTF-8 BOM is ignored.
+run_make_test("\xEF\xBB\xBFall: ; \@echo \$\@\n", '', "all");
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/features/varnesting b/tests/scripts/features/varnesting
new file mode 100644
index 0000000..d8f3ffb
--- /dev/null
+++ b/tests/scripts/features/varnesting
@@ -0,0 +1,35 @@
+# -*-perl-*-
+$description = "Test recursive variables";
+
+$details = "";
+
+run_make_test('
+x = variable1
+variable2 := Hello
+y = $(subst 1,2,$(x))
+z = y
+a := $($($(z)))
+all:
+ @echo $(a)
+',
+ '', "Hello\n");
+
+# This tests resetting the value of a variable while expanding it.
+# You may only see problems with this if you're using valgrind or
+# some other memory checker that poisons freed memory.
+# See Savannah patch #7534
+
+run_make_test('
+VARIABLE = $(eval VARIABLE := echo hi)$(VARIABLE)
+wololo:
+ @$(VARIABLE)
+',
+ '', "hi\n");
+
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/features/vpath b/tests/scripts/features/vpath
new file mode 100644
index 0000000..ec24165
--- /dev/null
+++ b/tests/scripts/features/vpath
@@ -0,0 +1,81 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test the \n"
+ ."vpath directive which allows you to specify a search \n"
+ ."path for a particular class of filenames, those that\n"
+ ."match a particular pattern.";
+
+$details = "This tests the vpath directive by specifying search directories\n"
+ ."for one class of filenames with the form: vpath pattern directories"
+ ."\nIn this test, we specify the working directory for all files\n"
+ ."that end in c or h. We also test the variables $@ (which gives\n"
+ ."target name) and $^ (which is a list of all dependencies \n"
+ ."including the directories in which they were found). It also\n"
+ ."uses the function firstword used to extract just the first\n"
+ ."dependency from the entire list.";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "vpath %.c foo\n";
+print MAKEFILE "vpath %.c $workdir\n";
+print MAKEFILE "vpath %.h $workdir\n";
+print MAKEFILE "objects = main.o kbd.o commands.o display.o insert.o\n";
+print MAKEFILE "edit: \$(objects)\n";
+print MAKEFILE "\t\@echo cc -o \$@ \$^\n";
+print MAKEFILE "main.o : main.c defs.h\n";
+print MAKEFILE "\t\@echo cc -c \$(firstword \$^)\n";
+print MAKEFILE "kbd.o : kbd.c defs.h command.h\n";
+print MAKEFILE "\t\@echo cc -c kbd.c\n";
+print MAKEFILE "commands.o : command.c defs.h command.h\n";
+print MAKEFILE "\t\@echo cc -c commands.c\n";
+print MAKEFILE "display.o : display.c defs.h buffer.h\n";
+print MAKEFILE "\t\@echo cc -c display.c\n";
+print MAKEFILE "insert.o : insert.c defs.h buffer.h\n";
+print MAKEFILE "\t\@echo cc -c insert.c\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+@files_to_touch = ("$workdir${pathsep}main.c","$workdir${pathsep}defs.h",
+ "$workdir${pathsep}kbd.c","$workdir${pathsep}command.h",
+ "$workdir${pathsep}commands.c","$workdir${pathsep}display.c",
+ "$workdir${pathsep}buffer.h","$workdir${pathsep}insert.c",
+ "$workdir${pathsep}command.c");
+
+&touch(@files_to_touch);
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "cc -c $workdir${pathsep}main.c\ncc -c kbd.c\ncc -c commands.c\n"
+ ."cc -c display.c\n"
+ ."cc -c insert.c\ncc -o edit main.o kbd.o commands.o display.o "
+ ."insert.o\n";
+
+if (&compare_output($answer,&get_logfile(1)))
+{
+ unlink @files_to_touch;
+}
+
+# TEST 2: after vpath lookup ensure we don't get incorrect circular dependency
+# warnings due to change of struct file ptr. Savannah bug #13529.
+
+mkdir('vpath-d', 0777);
+
+run_make_test(q!
+vpath %.te vpath-d/
+.SECONDARY:
+default: vpath-d/a vpath-d/b
+vpath-d/a: fail.te
+vpath-d/b : fail.te
+vpath-d/fail.te:
+!,
+ '', "#MAKE#: Nothing to be done for 'default'.\n");
+
+rmdir('vpath-d');
+
+1;
diff --git a/tests/scripts/features/vpath2 b/tests/scripts/features/vpath2
new file mode 100644
index 0000000..7e970a7
--- /dev/null
+++ b/tests/scripts/features/vpath2
@@ -0,0 +1,45 @@
+$description = "This is part 2 in a series to test the vpath directive\n"
+ ."It tests the three forms of the directive:\n"
+ ." vpath pattern directive\n"
+ ." vpath pattern (clears path associated with pattern)\n"
+ ." vpath (clears all paths specified with vpath)\n";
+
+$details = "This test simply adds many search paths using various vpath\n"
+ ."directive forms and clears them afterwards. It has a simple\n"
+ ."rule to print a message at the end to confirm that the makefile\n"
+ ."ran with no errors.\n";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "VPATH = $workdir:$sourcedir\n";
+print MAKEFILE "vpath %.c foo\n";
+print MAKEFILE "vpath %.c $workdir\n";
+print MAKEFILE "vpath %.c $sourcedir\n";
+print MAKEFILE "vpath %.h $workdir\n";
+print MAKEFILE "vpath %.c\n";
+print MAKEFILE "vpath\n";
+print MAKEFILE "all:\n";
+print MAKEFILE "\t\@echo ALL IS WELL\n";
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "ALL IS WELL\n";
+
+&compare_output($answer,&get_logfile(1));
+
+1;
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/features/vpath3 b/tests/scripts/features/vpath3
new file mode 100644
index 0000000..839fb72
--- /dev/null
+++ b/tests/scripts/features/vpath3
@@ -0,0 +1,41 @@
+# -*-perl-*-
+
+$description = "Test the interaction of the -lfoo feature and vpath";
+$details = "";
+
+my @dirs_to_make = qw(a1 b1 a2 b2 b3);
+for my $d (@dirs_to_make) {
+ mkdir($d, 0777);
+}
+
+my @files_to_touch = ("a1${pathsep}lib1.a",
+ "a1${pathsep}libc.a",
+ "b1${pathsep}lib1.so",
+ "a2${pathsep}lib2.a",
+ "b2${pathsep}lib2.so",
+ "lib3.a",
+ "b3${pathsep}lib3.so");
+&touch(@files_to_touch);
+
+my $answer = "a1${pathsep}lib1.a a1${pathsep}libc.a " .
+ "a2${pathsep}lib2.a lib3.a\n";
+if ($port_type eq 'VMS-DCL') {
+ $answer =~ s/ /,/g;
+}
+
+run_make_test('
+vpath %.h b3
+vpath %.a a1
+vpath %.so b1
+vpath % a2 b2
+vpath % b3
+all: -l1 -lc -l2 -l3; @echo $^
+',
+ '', $answer);
+
+unlink(@files_to_touch);
+for my $d (@dirs_to_make) {
+ rmdir($d);
+}
+
+1;
diff --git a/tests/scripts/features/vpathgpath b/tests/scripts/features/vpathgpath
new file mode 100644
index 0000000..5e6217b
--- /dev/null
+++ b/tests/scripts/features/vpathgpath
@@ -0,0 +1,66 @@
+# -*-perl-*-
+$description = "Tests VPATH+/GPATH functionality.";
+
+$details = "";
+
+$VP = "$workdir$pathsep";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "VPATH = $VP\n";
+
+print MAKEFILE <<'EOMAKE';
+
+GPATH = $(VPATH)
+
+.SUFFIXES: .a .b .c .d
+.PHONY: general rename notarget intermediate
+
+%.a:
+%.b:
+%.c:
+%.d:
+
+%.a : %.b ; cat $^ > $@
+%.b : %.c ; cat $^ > $@
+%.c :: %.d ; cat $^ > $@
+
+# General testing info:
+
+general: foo.b
+foo.b: foo.c bar.c
+
+EOMAKE
+
+close(MAKEFILE);
+
+@touchedfiles = ();
+
+$off = -500;
+
+sub touchfiles {
+ foreach (@_) {
+ ($f = $_) =~ s,VP/,$VP,g;
+ &utouch($off, $f);
+ $off += 10;
+ push(@touchedfiles, $f);
+ }
+}
+
+# Run the general-case test
+
+&touchfiles("VP/foo.d", "VP/bar.d", "VP/foo.c", "VP/bar.c", "foo.b", "bar.d");
+
+&run_make_with_options($makefile,"general",&get_logfile());
+
+push(@touchedfiles, "bar.c");
+
+$answer = "$make_name: Nothing to be done for 'general'.\n";
+
+&compare_output($answer,&get_logfile(1));
+
+unlink(@touchedfiles) unless $keep;
+
+1;
diff --git a/tests/scripts/features/vpathplus b/tests/scripts/features/vpathplus
new file mode 100644
index 0000000..9ade3f0
--- /dev/null
+++ b/tests/scripts/features/vpathplus
@@ -0,0 +1,132 @@
+# -*-perl-*-
+$description = "Tests the new VPATH+ functionality added in 3.76.";
+
+$details = "";
+
+$VP = "$workdir$pathsep";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "VPATH = $VP\n";
+
+print MAKEFILE <<'EOMAKE';
+
+SHELL = /bin/sh
+
+.SUFFIXES: .a .b .c .d
+.PHONY: general rename notarget intermediate
+
+%.a:
+%.b:
+%.c:
+%.d:
+
+%.a : %.b
+ cat $^ > $@
+%.b : %.c
+ cat $^ > $@ 2>/dev/null || exit 1
+%.c :: %.d
+ cat $^ > $@
+
+# General testing info:
+
+general: foo.b
+foo.b: foo.c bar.c
+
+# Rename testing info:
+
+rename: $(VPATH)/foo.c foo.d
+
+# Target not made testing info:
+
+notarget: notarget.b
+notarget.c: notarget.d
+ -@echo "not creating $@ from $^"
+
+# Intermediate files:
+
+intermediate: inter.a
+
+EOMAKE
+
+close(MAKEFILE);
+
+@touchedfiles = ();
+
+$off = -500;
+
+sub touchfiles {
+ foreach (@_) {
+ &utouch($off, $_);
+ $off += 10;
+ push(@touchedfiles, $_);
+ }
+}
+
+# Run the general-case test
+
+&touchfiles("$VP/foo.d", "$VP/bar.d", "$VP/foo.c", "$VP/bar.c", "foo.b", "bar.d");
+
+&run_make_with_options($makefile,"general",&get_logfile);
+
+push(@touchedfiles, "bar.c");
+
+$answer = "cat bar.d > bar.c
+cat ${VP}foo.c bar.c > foo.b 2>/dev/null || exit 1
+";
+&compare_output($answer,&get_logfile(1));
+
+# Test rules that don't make the target correctly
+
+&touchfiles("$VP/notarget.c", "notarget.b", "notarget.d");
+
+&run_make_with_options($makefile,"notarget",&get_logfile,512);
+
+$answer = "not creating notarget.c from notarget.d
+cat notarget.c > notarget.b 2>/dev/null || exit 1
+$make_name: *** [$makefile:16: notarget.b] Error 1
+";
+
+&compare_output($answer,&get_logfile(1));
+
+# Test intermediate file handling (part 1)
+
+&touchfiles("$VP/inter.d");
+
+&run_make_with_options($makefile,"intermediate",&get_logfile);
+
+push(@touchedfiles, "inter.a", "inter.b");
+
+$answer = "cat ${VP}inter.d > inter.c
+cat inter.c > inter.b 2>/dev/null || exit 1
+cat inter.b > inter.a
+rm inter.b inter.c
+";
+&compare_output($answer,&get_logfile(1));
+
+# Test intermediate file handling (part 2)
+
+&utouch(-20, "inter.a");
+&utouch(-10, "$VP/inter.b");
+&touch("$VP/inter.d");
+
+push(@touchedfiles, "$VP/inter.b", "$VP/inter.d");
+
+&run_make_with_options($makefile,"intermediate",&get_logfile);
+
+$answer = "cat ${VP}inter.d > inter.c
+cat inter.c > inter.b 2>/dev/null || exit 1
+cat inter.b > inter.a
+rm inter.c
+";
+&compare_output($answer,&get_logfile(1));
+
+unlink @touchedfiles unless $keep;
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/abspath b/tests/scripts/functions/abspath
new file mode 100644
index 0000000..84c30ab
--- /dev/null
+++ b/tests/scripts/functions/abspath
@@ -0,0 +1,81 @@
+# -*-perl-*-
+$description = "Test the abspath functions.";
+
+$details = "";
+
+run_make_test('
+ifneq ($(realpath $(abspath .)),$(CURDIR))
+ $(warning .: abs="$(abspath .)" real="$(realpath $(abspath .))" curdir="$(CURDIR)")
+endif
+
+ifneq ($(realpath $(abspath ./)),$(CURDIR))
+ $(warning ./: abs="$(abspath ./)" real="$(realpath $(abspath ./))" curdir="$(CURDIR)")
+endif
+
+ifneq ($(realpath $(abspath .///)),$(CURDIR))
+ $(warning .///: abs="$(abspath .///)" real="$(realpath $(abspath .///))" curdir="$(CURDIR)")
+endif
+
+ifneq ($(abspath /),/)
+ $(warning /: abspath="$(abspath /)")
+endif
+
+ifneq ($(abspath ///),/)
+ $(warning ///: abspath="$(abspath ///)")
+endif
+
+ifneq ($(abspath /.),/)
+ $(warning /.: abspath="$(abspath /.)")
+endif
+
+ifneq ($(abspath ///.),/)
+ $(warning ///.: abspath="$(abspath ///.)")
+endif
+
+ifneq ($(abspath /./),/)
+ $(warning /./: abspath="$(abspath /./)")
+endif
+
+ifneq ($(abspath /.///),/)
+ $(warning /.///: abspath="$(abspath /.///)")
+endif
+
+ifneq ($(abspath /..),/)
+ $(warning /..: abspath="$(abspath /..)")
+endif
+
+ifneq ($(abspath ///..),/)
+ $(warning ///..: abspath="$(abspath ///..)")
+endif
+
+ifneq ($(abspath /../),/)
+ $(warning /../: abspath="$(abspath /../)")
+endif
+
+ifneq ($(abspath /..///),/)
+ $(warning /..///: abspath="$(abspath /..///)")
+endif
+
+
+ifneq ($(abspath /foo/bar/..),/foo)
+ $(warning /foo/bar/..: abspath="$(abspath /foo/bar/..)")
+endif
+
+ifneq ($(abspath /foo/bar/../../../baz),/baz)
+ $(warning /foo/bar/../../../baz: abspath="$(abspath /foo/bar/../../../baz)")
+endif
+
+ifneq ($(abspath /foo/bar/../ /..),/foo /)
+ $(warning /foo/bar/../ /..: abspath="$(abspath /foo/bar/../ /..)")
+endif
+
+
+.PHONY: all
+all: ; @:
+',
+'',
+'');
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/functions/addprefix b/tests/scripts/functions/addprefix
new file mode 100644
index 0000000..1845552
--- /dev/null
+++ b/tests/scripts/functions/addprefix
@@ -0,0 +1,44 @@
+$description = "The following test creates a makefile to test the addprefix "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(addprefix src${pathsep},a.b.z.foo hacks) \n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "src${pathsep}a.b.z.foo src${pathsep}hacks\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/addsuffix b/tests/scripts/functions/addsuffix
new file mode 100644
index 0000000..da4fbb7
--- /dev/null
+++ b/tests/scripts/functions/addsuffix
@@ -0,0 +1,36 @@
+# -*-perl-*-
+$description = "Test the addsuffix function.";
+
+$details = "";
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<EOMAKE;
+string := \$(addsuffix .c,src${pathsep}a.b.z.foo hacks)
+one: ; \@echo \$(string)
+
+two: ; \@echo \$(addsuffix foo,)
+EOMAKE
+
+close(MAKEFILE);
+
+
+# TEST 0
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "src${pathsep}a.b.z.foo.c hacks.c\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST 1
+
+&run_make_with_options($makefile, "two", &get_logfile);
+$answer = "\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/functions/andor b/tests/scripts/functions/andor
new file mode 100644
index 0000000..62e0c2e
--- /dev/null
+++ b/tests/scripts/functions/andor
@@ -0,0 +1,50 @@
+# -*-perl-*-
+$description = "Test the and & or functions.\n";
+
+$details = "Try various uses of and & or to ensure they all give the correct
+results.\n";
+
+# TEST #0
+# For $(and ...), it will either be empty or the last value
+run_make_test('
+NEQ = $(subst $1,,$2)
+f =
+t = true
+
+all:
+ @echo 1 $(and ,$t)
+ @echo 2 $(and $t)
+ @echo 3 $(and $t,)
+ @echo 4 $(and z,true,$f,false)
+ @echo 5 $(and $t,$f,$(info bad short-circuit))
+ @echo 6 $(and $(call NEQ,a,b),true)
+ @echo 7 $(and $(call NEQ,a,a),true)
+ @echo 8 $(and z,true,fal,se) hi
+ @echo 9 $(and ,true,fal,se)there
+ @echo 10 $(and $(e) ,$t)',
+ '',
+ "1\n2 true\n3\n4\n5\n6 true\n7\n8 se hi\n9 there\n10\n");
+
+# TEST #1
+# For $(or ...), it will either be empty or the first true value
+run_make_test('
+NEQ = $(subst $1,,$2)
+f =
+t = true
+
+all:
+ @echo 1 $(or , )
+ @echo 2 $(or $t)
+ @echo 3 $(or ,$t)
+ @echo 4 $(or z,true,$f,false)
+ @echo 5 $(or $t,$(info bad short-circuit))
+ @echo 6 $(or $(info short-circuit),$t)
+ @echo 7 $(or $(call NEQ,a,b),true)
+ @echo 8 $(or $(call NEQ,a,a),true)
+ @echo 9 $(or z,true,fal,se) hi
+ @echo 10 $(or ,true,fal,se)there
+ @echo 11 $(or $(e) ,$f)',
+ '',
+ "short-circuit\n1\n2 true\n3 true\n4 z\n5 true\n6 true\n7 b\n8 true\n9 z hi\n10 truethere\n11\n");
+
+1;
diff --git a/tests/scripts/functions/basename b/tests/scripts/functions/basename
new file mode 100644
index 0000000..08f2ea5
--- /dev/null
+++ b/tests/scripts/functions/basename
@@ -0,0 +1,44 @@
+$description = "The following test creates a makefile to test the suffix "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(basename src${pathsep}a.b.z.foo.c src${pathsep}hacks src.bar${pathsep}a.b.z.foo.c src.bar${pathsep}hacks hacks) \n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "src${pathsep}a.b.z.foo src${pathsep}hacks src.bar${pathsep}a.b.z.foo src.bar${pathsep}hacks hacks\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/call b/tests/scripts/functions/call
new file mode 100644
index 0000000..dc1a623
--- /dev/null
+++ b/tests/scripts/functions/call
@@ -0,0 +1,92 @@
+# -*-perl-*-
+$description = "Test the call function.\n";
+
+$details = "Try various uses of call and ensure they all give the correct
+results.\n";
+
+run_make_test(q!
+# Simple, just reverse two things
+#
+reverse = $2 $1
+
+# A complex 'map' function, using recursive 'call'.
+#
+map = $(foreach a,$2,$(call $1,$a))
+
+# Test using a builtin; this is silly as it's simpler to do without call
+#
+my-notdir = $(call notdir,$(1))
+
+# Test using non-expanded builtins
+#
+my-foreach = $(foreach $(1),$(2),$(3))
+my-if = $(if $(1),$(2),$(3))
+
+# Test recursive invocations of call with different arguments
+#
+one = $(1) $(2) $(3)
+two = $(call one,$(1),foo,$(2))
+
+# Test recursion on the user-defined function. As a special case make
+# won't error due to this.
+# Implement transitive closure using $(call ...)
+#
+DEP_foo = bar baz quux
+DEP_baz = quux blarp
+rest = $(wordlist 2,$(words ${1}),${1})
+tclose = $(if $1,$(firstword $1)\
+ $(call tclose,$(sort ${DEP_$(firstword $1)} $(call rest,$1))))
+
+all: ; @echo '$(call reverse,bar,foo)'; \
+ echo '$(call map,origin,MAKE reverse map)'; \
+ echo '$(call my-notdir,a/b c/d e/f)'; \
+ echo '$(call my-foreach)'; \
+ echo '$(call my-foreach,a,,,)'; \
+ echo '$(call my-if,a,b,c)'; \
+ echo '$(call two,bar,baz)'; \
+ echo '$(call tclose,foo)';
+!,
+ "", "foo bar\ndefault file file\nb d f\n\n\nb\nbar foo baz\nfoo bar baz blarp quux \n");
+
+# These won't work because call expands all its arguments first, before
+# passing them on, then marks them as resolved/simple, so they're not
+# expanded again by the function.
+#
+# echo '$(call my-foreach,a,x y z,$$(a)$$(a))'; \
+# echo '$(call my-if,,$$(info don't print this),$$(info do print this))'
+#
+# $answer = "xx yy zz\ndo print this\n";
+
+# TEST eclipsing of arguments when invoking sub-calls
+
+run_make_test(q!
+all = $1 $2 $3 $4 $5 $6 $7 $8 $9
+
+level1 = $(call all,$1,$2,$3,$4,$5)
+level2 = $(call level1,$1,$2,$3)
+level3 = $(call level2,$1,$2,$3,$4,$5)
+
+all:
+ @echo $(call all,1,2,3,4,5,6,7,8,9,10,11)
+ @echo $(call level1,1,2,3,4,5,6,7,8)
+ @echo $(call level2,1,2,3,4,5,6,7,8)
+ @echo $(call level3,1,2,3,4,5,6,7,8)
+!,
+ "", "1 2 3 4 5 6 7 8 9\n1 2 3 4 5\n1 2 3\n1 2 3\n");
+
+# Ensure that variables are defined in global scope even in a $(call ...)
+
+delete $ENV{X123};
+
+run_make_test('
+tst = $(eval export X123)
+$(call tst)
+all: ; @echo "$${X123-not set}"
+',
+ '', "\n");
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/dir b/tests/scripts/functions/dir
new file mode 100644
index 0000000..f48fb8c
--- /dev/null
+++ b/tests/scripts/functions/dir
@@ -0,0 +1,44 @@
+$description = "The following test creates a makefile to test the dir "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(dir src${pathsep}foo.c hacks) \n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "src${pathsep} .${pathsep}\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/error b/tests/scripts/functions/error
new file mode 100644
index 0000000..998afe4
--- /dev/null
+++ b/tests/scripts/functions/error
@@ -0,0 +1,71 @@
+# -*-Perl-*-
+
+$description = "\
+The following test creates a makefile to test the error function.";
+
+$details = "";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE 'err = $(error Error found!)
+
+ifdef ERROR1
+$(error error is $(ERROR1))
+endif
+
+ifdef ERROR2
+$(error error is $(ERROR2))
+endif
+
+ifdef ERROR3
+all: some; @echo $(error error is $(ERROR3))
+endif
+
+ifdef ERROR4
+all: some; @echo error is $(ERROR4)
+ @echo $(error error is $(ERROR4))
+endif
+
+some: ; @echo Some stuff
+
+testvar: ; @: $(err)
+';
+
+close(MAKEFILE);
+
+# Test #1
+
+&run_make_with_options($makefile, "ERROR1=yes", &get_logfile, 512);
+$answer = "$makefile:4: *** error is yes. Stop.\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #2
+
+&run_make_with_options($makefile, "ERROR2=no", &get_logfile, 512);
+$answer = "$makefile:8: *** error is no. Stop.\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #3
+
+&run_make_with_options($makefile, "ERROR3=maybe", &get_logfile, 512);
+$answer = "Some stuff\n$makefile:12: *** error is maybe. Stop.\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #4
+
+&run_make_with_options($makefile, "ERROR4=definitely", &get_logfile, 512);
+$answer = "Some stuff\n$makefile:17: *** error is definitely. Stop.\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #5
+
+&run_make_with_options($makefile, "testvar", &get_logfile, 512);
+$answer = "$makefile:22: *** Error found!. Stop.\n";
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/eval b/tests/scripts/functions/eval
new file mode 100644
index 0000000..90513bd
--- /dev/null
+++ b/tests/scripts/functions/eval
@@ -0,0 +1,169 @@
+# -*-perl-*-
+
+$description = "Test the eval function.";
+
+$details = "This is a test of the eval function in GNU make.
+This function will evaluate inline makefile syntax and incorporate the
+results into its internal database.\n";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+define Y
+ all:: ; @echo $AA
+ A = B
+endef
+
+X = $(eval $(value Y))
+
+$(eval $(shell echo A = A))
+$(eval $(Y))
+$(eval A = C)
+$(eval $(X))
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile, "", &get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "AA\nBA\n";
+
+&compare_output($answer,&get_logfile(1));
+
+# Test to make sure defining variables when we have extra scope pushed works
+# as expected.
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile2");
+
+print MAKEFILE <<'EOF';
+VARS = A B
+
+VARSET = $(1) = $(2)
+
+$(foreach v,$(VARS),$(eval $(call VARSET,$v,$v)))
+
+all: ; @echo A = $(A) B = $(B)
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile2, "", &get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "A = A B = B\n";
+
+&compare_output($answer,&get_logfile(1));
+
+# Test to make sure eval'ing inside conditionals works properly
+
+$makefile3 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile3");
+
+print MAKEFILE <<'EOF';
+FOO = foo
+
+all:: ; @echo it
+
+define Y
+ all:: ; @echo worked
+endef
+
+ifdef BAR
+$(eval $(Y))
+endif
+
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile3, "", &get_logfile);
+$answer = "it\n";
+&compare_output($answer,&get_logfile(1));
+
+&run_make_with_options($makefile3, "BAR=1", &get_logfile);
+$answer = "it\nworked\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST very recursive invocation of eval
+
+$makefile3 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile3");
+
+print MAKEFILE <<'EOF';
+..9 := 0 1 2 3 4 5 6 7 8 9
+rev=$(eval res:=)$(foreach word,$1,$(eval res:=${word} ${res}))${res}
+a:=$(call rev,${..9})
+all: ; @echo '[$(a)]'
+
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile3, "", &get_logfile);
+$answer = "[ 9 8 7 6 5 4 3 2 1 0 ]\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST eval with no filename context.
+# The trick here is that because EVAR is taken from the environment, it must
+# be evaluated before every command is invoked. Make sure that works, when
+# we have no file context for reading_file (bug # 6195)
+
+$makefile4 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile4");
+
+print MAKEFILE <<'EOF';
+EVAR = $(eval FOBAR = 1)
+all: ; @echo "OK"
+
+EOF
+
+close(MAKEFILE);
+
+$extraENV{EVAR} = '1';
+&run_make_with_options($makefile4, "", &get_logfile);
+$answer = "OK\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# Clean out previous information to allow new run_make_test() interface.
+# If we ever convert all the above to run_make_test() we can remove this line.
+$makefile = undef;
+
+# Test handling of backslashes in strings to be evaled.
+
+run_make_test('
+define FOO
+all: ; @echo hello \
+world
+endef
+$(eval $(FOO))
+', '', 'hello world');
+
+run_make_test('
+define FOO
+all: ; @echo '."'".'he\llo'."'".'
+ @echo world
+endef
+$(eval $(FOO))
+', '', 'he\llo
+world');
+
+
+# We don't allow new target/prerequisite relationships to be defined within a
+# command script, because these are evaluated after snap_deps() and that
+# causes lots of problems (like core dumps!)
+# See Savannah bug # 12124.
+
+run_make_test('deps: ; $(eval deps: foo)', '',
+ '#MAKEFILE#:1: *** prerequisites cannot be defined in recipes. Stop.',
+ 512);
+
+1;
diff --git a/tests/scripts/functions/file b/tests/scripts/functions/file
new file mode 100644
index 0000000..904db79
--- /dev/null
+++ b/tests/scripts/functions/file
@@ -0,0 +1,161 @@
+# -*-perl-*-
+
+$description = 'Test the $(file ...) function.';
+
+# Test > and >>
+run_make_test(q!
+define A
+a
+b
+endef
+B = c d
+$(file >file.out,$(A))
+$(foreach L,$(B),$(file >> file.out,$L))
+x:;@echo hi; cat file.out
+!,
+ '', "hi\na\nb\nc\nd");
+
+unlink('file.out');
+
+# Test >> to a non-existent file
+run_make_test(q!
+define A
+a
+b
+endef
+$(file >> file.out,$(A))
+x:;@cat file.out
+!,
+ '', "a\nb");
+
+unlink('file.out');
+
+# Test > with no content
+run_make_test(q!
+$(file >4touch)
+.PHONY:x
+x:;@cat 4touch
+!,
+ '', '');
+
+# Test >> with no content
+run_make_test(q!
+$(file >>4touch)
+.PHONY:x
+x:;@cat 4touch
+!,
+ '', '');
+unlink('4touch');
+
+# Test > to a read-only file
+touch('file.out');
+chmod(0444, 'file.out');
+
+# Find the error that will be printed
+# This seems complicated, but we need the message from the C locale
+my $loc = undef;
+if ($has_POSIX) {
+ $loc = POSIX::setlocale(POSIX::LC_MESSAGES);
+ POSIX::setlocale(POSIX::LC_MESSAGES, 'C');
+}
+my $e;
+open(my $F, '>', 'file.out') and die "Opened read-only file!\n";
+$e = "$!";
+$loc and POSIX::setlocale(POSIX::LC_MESSAGES, $loc);
+
+run_make_test(q!
+define A
+a
+b
+endef
+$(file > file.out,$(A))
+x:;@cat file.out
+!,
+ '', "#MAKEFILE#:6: *** open: file.out: $e. Stop.",
+ 512);
+
+unlink('file.out');
+
+# Use variables for operator and filename
+run_make_test(q!
+define A
+a
+b
+endef
+OP = >
+FN = file.out
+$(file $(OP) $(FN),$(A))
+x:;@cat file.out
+!,
+ '', "a\nb");
+
+unlink('file.out');
+
+# Don't add newlines if one already exists
+run_make_test(q!
+define A
+a
+b
+
+endef
+$(file >file.out,$(A))
+x:;@cat file.out
+!,
+ '', "a\nb");
+
+unlink('file.out');
+
+# Empty text
+run_make_test(q!
+$(file >file.out,)
+$(file >>file.out,)
+x:;@cat file.out
+!,
+ '', "\n\n");
+
+unlink('file.out');
+
+# Reading files
+run_make_test(q!
+$(file >file.out,A = foo)
+X1 := $(file <file.out)
+$(file >>file.out,B = bar)
+$(eval $(file <file.out))
+
+x:;@echo '$(X1)'; echo '$(A)'; echo '$(B)'
+!,
+ '', "A = foo\nfoo\nbar\n");
+
+unlink('file.out');
+
+# Reading from non-existent file
+run_make_test(q!
+X1 := $(file <file.out)
+x:;@echo '$(X1)';
+!,
+ '', "\n");
+
+# Extra arguments in read mode
+run_make_test(q!
+X1 := $(file <file.out,foo)
+x:;@echo '$(X1)';
+!,
+ '', "#MAKEFILE#:2: *** file: too many arguments. Stop.\n", 512);
+
+
+# Missing filename
+run_make_test('$(file >)', '',
+ "#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
+
+run_make_test('$(file >>)', '',
+ "#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
+
+run_make_test('$(file <)', '',
+ "#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
+
+# Bad call
+
+run_make_test('$(file foo)', '',
+ "#MAKEFILE#:1: *** file: invalid file operation: foo. Stop.\n", 512);
+
+1;
diff --git a/tests/scripts/functions/filter-out b/tests/scripts/functions/filter-out
new file mode 100644
index 0000000..1fe4819
--- /dev/null
+++ b/tests/scripts/functions/filter-out
@@ -0,0 +1,42 @@
+# -*-perl-*-
+
+$description = "Test the filter and filter-out functions.";
+
+$details = "The makefile created in this test has two variables. The
+filter-out function is first used to discard names ending in
+.o with a single simple pattern. The second filter-out function
+augments the simple pattern with three literal names, which are
+also added to the text argument. This tests an internal hash table
+which is only used if there are multiple literals present in both
+the pattern and text arguments. The result of both filter-out
+functions is the same single .elc name.\n";
+
+# Basic test -- filter
+run_make_test(q!
+files1 := $(filter %.o, foo.elc bar.o lose.o)
+files2 := $(filter %.o foo.i, foo.i bar.i lose.i foo.elc bar.o lose.o)
+all: ; @echo '$(files1) $(files2)'
+!,
+ '', "bar.o lose.o foo.i bar.o lose.o\n");
+
+# Basic test -- filter-out
+run_make_test(q!
+files1 := $(filter-out %.o, foo.elc bar.o lose.o)
+files2 := $(filter-out foo.i bar.i lose.i %.o, foo.i bar.i lose.i foo.elc bar.o lose.o)
+all: ; @echo '$(files1) $(files2)'
+!,
+ '', "foo.elc foo.elc\n");
+
+# Escaped patterns
+run_make_test(q!all:;@echo '$(filter foo\%bar,foo%bar fooXbar)'!,
+ '', "foo%bar\n");
+
+run_make_test(q!all:;@echo '$(filter foo\%\%\\\\\%\%bar,foo%%\\%%bar fooX\\Ybar)'!,
+ '', "foo%%\\%%bar\n");
+
+run_make_test(q!
+X = $(filter foo\\\\\%bar,foo\%bar foo\Xbar)
+all:;@echo '$(X)'!,
+ '', "foo\\%bar\n");
+
+1;
diff --git a/tests/scripts/functions/findstring b/tests/scripts/functions/findstring
new file mode 100644
index 0000000..48abede
--- /dev/null
+++ b/tests/scripts/functions/findstring
@@ -0,0 +1,47 @@
+$description = "The following test creates a makefile to test the findstring "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(findstring port, reporter)\n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,
+ "",
+ &get_logfile,
+ 0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "port\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/flavor b/tests/scripts/functions/flavor
new file mode 100644
index 0000000..80d6be7
--- /dev/null
+++ b/tests/scripts/functions/flavor
@@ -0,0 +1,44 @@
+# -*-perl-*-
+$description = "Test the flavor function.";
+
+$details = "";
+
+
+# Test #1: Test general logic.
+#
+run_make_test('
+s := s
+r = r
+
+$(info u $(flavor u))
+$(info s $(flavor s))
+$(info r $(flavor r))
+
+ra += ra
+rc ?= rc
+
+$(info ra $(flavor ra))
+$(info rc $(flavor rc))
+
+s += s
+r += r
+
+$(info s $(flavor s))
+$(info r $(flavor r))
+
+
+.PHONY: all
+all:;@:
+',
+'',
+'u undefined
+s simple
+r recursive
+ra recursive
+rc recursive
+s simple
+r recursive');
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/functions/foreach b/tests/scripts/functions/foreach
new file mode 100644
index 0000000..451839a
--- /dev/null
+++ b/tests/scripts/functions/foreach
@@ -0,0 +1,95 @@
+# -*-perl-*-
+# $Id$
+
+$description = "Test the foreach function.";
+
+$details = "This is a test of the foreach function in gnu make.
+This function starts with a space separated list of
+names and a variable. Each name in the list is subsituted
+into the variable and the given text evaluated. The general
+form of the command is $(foreach var,$list,$text). Several
+types of foreach loops are tested\n";
+
+
+# TEST 0
+
+# Set an environment variable that we can test in the makefile.
+$extraENV{FOOFOO} = 'foo foo';
+
+run_make_test("space = ' '".'
+null :=
+auto_var = udef space CC null FOOFOO MAKE foo CFLAGS WHITE @ <
+foo = bletch null @ garf
+av = $(foreach var, $(auto_var), $(origin $(var)) )
+override WHITE := BLACK
+for_var = $(addsuffix .c,foo $(null) $(foo) $(space) $(av) )
+fe = $(foreach var2, $(for_var),$(subst .c,.o, $(var2) ) )
+all: auto for2
+auto : ; @echo $(av)
+for2: ; @echo $(fe)',
+ '-e WHITE=WHITE CFLAGS=',
+ "undefined file default file environment default file command line override automatic automatic
+foo.o bletch.o null.o @.o garf.o .o .o undefined.o file.o default.o file.o environment.o default.o file.o command.o line.o override.o automatic.o automatic.o");
+
+delete $extraENV{FOOFOO};
+
+# TEST 1: Test that foreach variables take precedence over global
+# variables in a global scope (like inside an eval). Tests bug #11913
+
+run_make_test('
+.PHONY: all target
+all: target
+
+x := BAD
+
+define mktarget
+target: x := $(x)
+target: ; @echo "$(x)"
+endef
+
+x := GLOBAL
+
+$(foreach x,FOREACH,$(eval $(value mktarget)))',
+ '',
+ 'FOREACH');
+
+# Allow variable names with trailing space
+run_make_test(q!
+$(foreach \
+ a \
+, b c d \
+, $(info $a))
+all:;@:
+!,
+ "", "b\nc\nd\n");
+
+# Allow empty variable names. We still expand the body.
+
+run_make_test('
+x = $(foreach ,1 2 3,a)
+y := $x
+
+all: ; @echo $y',
+ '', "a a a\n");
+
+# Check some error conditions.
+
+run_make_test('
+x = $(foreach )
+y = $x
+
+all: ; @echo $y',
+ '',
+ "#MAKEFILE#:2: *** insufficient number of arguments (1) to function 'foreach'. Stop.",
+ 512);
+
+run_make_test('
+x = $(foreach x,y)
+y := $x
+
+all: ; @echo $y',
+ '',
+ "#MAKEFILE#:2: *** insufficient number of arguments (2) to function 'foreach'. Stop.",
+ 512);
+
+1;
diff --git a/tests/scripts/functions/guile b/tests/scripts/functions/guile
new file mode 100644
index 0000000..c63bec9
--- /dev/null
+++ b/tests/scripts/functions/guile
@@ -0,0 +1,99 @@
+# -*-perl-*-
+
+$description = 'Test the $(guile ...) function.';
+
+$details = 'This only works on systems that support it.';
+
+# If this instance of make doesn't support GNU Guile, skip it
+# This detects if guile is loaded using the "load" directive
+# $makefile = get_tmpfile();
+# open(MAKEFILE, "> $makefile") || die "Failed to open $makefile: $!\n";
+# print MAKEFILE q!
+# -load guile
+# all: ; @echo $(filter guile,$(.LOADED))
+# !;
+# close(MAKEFILE) || die "Failed to write $makefile: $!\n";
+# $cmd = subst_make_string("#MAKEPATH# -f $makefile");
+# $log = get_logfile(0);
+# $code = run_command_with_output($log, $cmd);
+# read_file_into_string ($log) eq "guile\n" and $FEATURES{guile} = 1;
+
+# If we don't have Guile support, never mind.
+exists $FEATURES{guile} or return -1;
+
+# Verify simple data type conversions
+# Currently we don't support vectors:
+# echo '$(guile (vector 1 2 3))'; \
+run_make_test(q!
+x:;@echo '$(guile #f)'; \
+ echo '$(guile #t)'; \
+ echo '$(guile #\c)'; \
+ echo '$(guile 1234)'; \
+ echo '$(guile 'foo)'; \
+ echo '$(guile "bar")'; \
+ echo '$(guile (cons 'a 'b))'; \
+ echo '$(guile '(a b (c . d) 1 (2) 3))'
+!,
+ '', "\n#t\nc\n1234\nfoo\nbar\na b\na b c d 1 2 3");
+
+# Verify the gmk-expand function
+run_make_test(q!
+VAR = $(guile (gmk-expand "$(shell echo hi)"))
+x:;@echo '$(VAR)'
+!,
+ '', "hi");
+
+# Verify the gmk-eval function
+# Prove that the string is expanded only once (by eval)
+run_make_test(q!
+TEST = bye
+EVAL = VAR = $(TEST) $(shell echo there)
+$(guile (gmk-eval "$(value EVAL)"))
+TEST = hi
+x:;@echo '$(VAR)'
+!,
+ '', "hi there");
+
+# Verify the gmk-eval function with a list
+run_make_test(q!
+$(guile (gmk-eval '(VAR = 1 (2) () 3)))
+x:;@echo '$(VAR)'
+!,
+ '', "1 2 3");
+
+# Verify the gmk-var function
+run_make_test(q!
+VALUE = hi $(shell echo there)
+VAR = $(guile (gmk-var "VALUE"))
+x:;@echo '$(VAR)'
+!,
+ '', "hi there");
+
+# Verify the gmk-var function with a symbol
+run_make_test(q!
+VALUE = hi $(shell echo there)
+VAR = $(guile (gmk-var 'VALUE))
+x:;@echo '$(VAR)'
+!,
+ '', "hi there");
+
+# Write a Guile program using define and run it
+run_make_test(q!
+# Define the "fib" function in Guile
+define fib
+;; A procedure for counting the n:th Fibonacci number
+;; See SICP, p. 37
+(define (fib n)
+ (cond ((= n 0) 0)
+ ((= n 1) 1)
+ (else (+ (fib (- n 1))
+ (fib (- n 2))))))
+endef
+$(guile $(fib))
+
+# Now run it
+x:;@echo $(guile (fib $(FIB)))
+!,
+ 'FIB=10', "55");
+
+1;
diff --git a/tests/scripts/functions/if b/tests/scripts/functions/if
new file mode 100644
index 0000000..8604e4f
--- /dev/null
+++ b/tests/scripts/functions/if
@@ -0,0 +1,33 @@
+# -*-perl-*-
+$description = "Test the if function.\n";
+
+$details = "Try various uses of if and ensure they all give the correct
+results.\n";
+
+open(MAKEFILE, "> $makefile");
+
+print MAKEFILE <<EOMAKE;
+NEQ = \$(subst \$1,,\$2)
+e =
+
+all:
+\t\@echo 1 \$(if ,true,false)
+\t\@echo 2 \$(if ,true,)
+\t\@echo 3 \$(if ,true)
+\t\@echo 4 \$(if z,true,false)
+\t\@echo 5 \$(if z,true,\$(shell echo hi))
+\t\@echo 6 \$(if ,\$(shell echo hi),false)
+\t\@echo 7 \$(if \$(call NEQ,a,b),true,false)
+\t\@echo 8 \$(if \$(call NEQ,a,a),true,false)
+\t\@echo 9 \$(if z,true,fal,se) hi
+\t\@echo 10 \$(if ,true,fal,se)there
+\t\@echo 11 \$(if \$(e) ,true,false)
+EOMAKE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "1 false\n2\n3\n4 true\n5 true\n6 false\n7 true\n8 false\n9 true hi\n10 fal,sethere\n11 false\n";
+&compare_output($answer, &get_logfile(1));
+
+1;
diff --git a/tests/scripts/functions/join b/tests/scripts/functions/join
new file mode 100644
index 0000000..302c307
--- /dev/null
+++ b/tests/scripts/functions/join
@@ -0,0 +1,44 @@
+$description = "The following test creates a makefile to test the join "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(join a b c,foo hacks .pl1) \n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "afoo bhacks c.pl1\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/notdir b/tests/scripts/functions/notdir
new file mode 100644
index 0000000..4ed8f9c
--- /dev/null
+++ b/tests/scripts/functions/notdir
@@ -0,0 +1,44 @@
+$description = "The following test creates a makefile to test the notdir "
+ ."function.";
+
+$details = "";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := \$(notdir ${pathsep}src${pathsep}foo.c hacks) \n"
+ ."all: \n"
+ ."\t\@echo \$(string) \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "foo.c hacks\n";
+
+# COMPARE RESULTS
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/origin b/tests/scripts/functions/origin
new file mode 100644
index 0000000..f7b7eb8
--- /dev/null
+++ b/tests/scripts/functions/origin
@@ -0,0 +1,51 @@
+# -*-perl-*-
+
+$description = "Test the origin function.";
+
+$details = "This is a test of the origin function in gnu make.
+This function will report on where a variable was
+defined per the following list:
+
+'undefined' never defined
+'default' default definition
+'environment' environment var without -e
+'environment override' environment var with -e
+'file' defined in makefile
+'command line' defined on the command line
+'override' defined by override in makefile
+'automatic' Automatic variable\n";
+
+# Set an environment variable
+$extraENV{MAKETEST} = 1;
+
+run_make_test('
+foo := bletch garf
+auto_var = undefined CC MAKETEST MAKE foo CFLAGS WHITE @
+av = $(foreach var, $(auto_var), $(origin $(var)) )
+override WHITE := BLACK
+all: auto
+ @echo $(origin undefined)
+ @echo $(origin CC)
+ @echo $(origin MAKETEST)
+ @echo $(origin MAKE)
+ @echo $(origin foo)
+ @echo $(origin CFLAGS)
+ @echo $(origin WHITE)
+ @echo $(origin @)
+auto :
+ @echo $(av)',
+ '-e WHITE=WHITE CFLAGS=',
+ 'undefined default environment default file command line override automatic
+undefined
+default
+environment
+default
+file
+command line
+override
+automatic');
+
+# Reset an environment variable
+delete $extraENV{MAKETEST};
+
+1;
diff --git a/tests/scripts/functions/realpath b/tests/scripts/functions/realpath
new file mode 100644
index 0000000..9b503b4
--- /dev/null
+++ b/tests/scripts/functions/realpath
@@ -0,0 +1,82 @@
+# -*-perl-*-
+$description = "Test the realpath functions.";
+
+$details = "";
+
+run_make_test('
+ifneq ($(realpath .),$(CURDIR))
+ $(error )
+endif
+
+ifneq ($(realpath ./),$(CURDIR))
+ $(error )
+endif
+
+ifneq ($(realpath .///),$(CURDIR))
+ $(error )
+endif
+
+ifneq ($(realpath /),/)
+ $(error )
+endif
+
+ifneq ($(realpath /.),/)
+ $(error )
+endif
+
+ifneq ($(realpath /./),/)
+ $(error )
+endif
+
+ifneq ($(realpath /.///),/)
+ $(error )
+endif
+
+ifneq ($(realpath /..),/)
+ $(error )
+endif
+
+ifneq ($(realpath /../),/)
+ $(error )
+endif
+
+ifneq ($(realpath /..///),/)
+ $(error )
+endif
+
+ifneq ($(realpath . /..),$(CURDIR) /)
+ $(error )
+endif
+
+.PHONY: all
+all: ; @:
+',
+ '',
+ '');
+
+# On Windows platforms, "//" means something special. So, don't do these
+# tests there.
+
+if ($port_type ne 'W32') {
+ run_make_test('
+ifneq ($(realpath ///),/)
+ $(error )
+endif
+
+ifneq ($(realpath ///.),/)
+ $(error )
+endif
+
+ifneq ($(realpath ///..),/)
+ $(error )
+endif
+
+.PHONY: all
+all: ; @:',
+ '',
+ '');
+}
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/functions/shell b/tests/scripts/functions/shell
new file mode 100644
index 0000000..809c77f
--- /dev/null
+++ b/tests/scripts/functions/shell
@@ -0,0 +1,60 @@
+# -*-perl-*-
+
+$description = 'Test the $(shell ...) function.';
+
+$details = '';
+
+# Test standard shell
+run_make_test('.PHONY: all
+OUT := $(shell echo hi)
+all: ; @echo $(OUT)
+ ','','hi');
+
+# Test shells inside rules.
+run_make_test('.PHONY: all
+all: ; @echo $(shell echo hi)
+ ','','hi');
+
+# Verify .SHELLSTATUS
+run_make_test('.PHONY: all
+PRE := $(.SHELLSTATUS)
+$(shell exit 0)
+OK := $(.SHELLSTATUS)
+$(shell exit 1)
+BAD := $(.SHELLSTATUS)
+all: ; @echo PRE=$(PRE) OK=$(OK) BAD=$(BAD)
+ ','','PRE= OK=0 BAD=1');
+
+
+# Test unescaped comment characters in shells. Savannah bug #20513
+if ($all_tests) {
+ run_make_test(q!
+FOO := $(shell echo '#')
+foo: ; echo '$(FOO)'
+!,
+ '', "#\n");
+}
+
+# Test shells inside exported environment variables.
+# This is the test that fails if we try to put make exported variables into
+# the environment for a $(shell ...) call.
+run_make_test('
+export HI = $(shell echo hi)
+.PHONY: all
+all: ; @echo $$HI
+ ','','hi');
+
+# Test shell errors in recipes including offset
+run_make_test('
+all:
+ @echo hi
+ $(shell ./basdfdfsed there)
+ @echo there
+',
+ '', "#MAKE#: ./basdfdfsed: Command not found\nhi\nthere\n");
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/sort b/tests/scripts/functions/sort
new file mode 100644
index 0000000..e6e1343
--- /dev/null
+++ b/tests/scripts/functions/sort
@@ -0,0 +1,51 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to verify
+the ability of make to sort lists of object. Sort
+will also remove any duplicate entries. This will also
+be tested.";
+
+$details = "The make file is built with a list of object in a random order
+and includes some duplicates. Make should sort all of the elements
+remove all duplicates\n";
+
+run_make_test('
+foo := moon_light days
+foo1:= jazz
+bar := captured
+bar2 = boy end, has rise A midnight
+bar3:= $(foo)
+s1 := _by
+s2 := _and_a
+t1 := $(addsuffix $(s1), $(bar) )
+t2 := $(addsuffix $(s2), $(foo1) )
+t3 := $(t2) $(t2) $(t2) $(t2) $(t2) $(t2) $(t2) $(t2) $(t2) $(t2)
+t4 := $(t3) $(t3) $(t3) $(t3) $(t3) $(t3) $(t3) $(t3) $(t3) $(t3)
+t5 := $(t4) $(t4) $(t4) $(t4) $(t4) $(t4) $(t4) $(t4) $(t4) $(t4)
+t6 := $(t5) $(t5) $(t5) $(t5) $(t5) $(t5) $(t5) $(t5) $(t5) $(t5)
+t7 := $(t6) $(t6) $(t6)
+p1 := $(addprefix $(foo1), $(s2) )
+blank:=
+all:
+ @echo $(sort $(bar2) $(foo) $(addsuffix $(s1), $(bar) ) $(t2) $(bar2) $(bar3))
+ @echo $(sort $(blank) $(foo) $(bar2) $(t1) $(p1) )
+ @echo $(sort $(foo) $(bar2) $(t1) $(t4) $(t5) $(t7) $(t6) )
+',
+ '', 'A boy captured_by days end, has jazz_and_a midnight moon_light rise
+A boy captured_by days end, has jazz_and_a midnight moon_light rise
+A boy captured_by days end, has jazz_and_a midnight moon_light rise
+');
+
+
+# Test with non-space/tab whitespace. Note that you can't see the
+# original bug except using valgrind.
+
+run_make_test("FOO = a b\tc\rd\fe \f \f \f \f \ff
+all: ; \@echo \$(words \$(sort \$(FOO)))\n",
+ '', "6\n");
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/strip b/tests/scripts/functions/strip
new file mode 100644
index 0000000..8222433
--- /dev/null
+++ b/tests/scripts/functions/strip
@@ -0,0 +1,57 @@
+# -*-perl-*-
+$description = "The following test creates a makefile to verify
+the ability of make to strip white space from lists of object.\n";
+
+
+$details = "The make file is built with a list of objects that contain white space
+These are then run through the strip command to remove it. This is then
+verified by echoing the result.\n";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<'EOMAKE';
+TEST1 := "Is this TERMINAL fun? What makes you believe is this terminal fun? JAPAN is a WONDERFUL planet -- I wonder if we will ever reach their level of COMPARATIVE SHOPPING..."
+E :=
+TEST2 := $E try this and this $E
+
+define TEST3
+
+and these test out
+
+
+some
+blank lines
+
+
+
+endef
+
+.PHONY: all
+all:
+ @echo '$(strip $(TEST1) )'
+ @echo '$(strip $(TEST2) )'
+ @echo '$(strip $(TEST3) )'
+
+space: ; @echo '$(strip ) $(strip )'
+
+EOMAKE
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile);
+$answer = "\"Is this TERMINAL fun? What makes you believe is this terminal fun? JAPAN is a WONDERFUL planet -- I wonder if we will ever reach their level of COMPARATIVE SHOPPING...\"
+try this and this
+and these test out some blank lines
+";
+&compare_output($answer,&get_logfile(1));
+
+
+&run_make_with_options($makefile,"space",&get_logfile);
+$answer = " \n";
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/functions/substitution b/tests/scripts/functions/substitution
new file mode 100644
index 0000000..0d2f6a2
--- /dev/null
+++ b/tests/scripts/functions/substitution
@@ -0,0 +1,38 @@
+# -*-perl-*-
+
+$description = "Test the subst and patsubst functions";
+
+$details = "";
+
+# Generic patsubst test: test both the function and variable form.
+
+run_make_test('
+foo := a.o b.o c.o
+bar := $(foo:.o=.c)
+bar2:= $(foo:%.o=%.c)
+bar3:= $(patsubst %.c,%.o,x.c.c bar.c)
+all:;@echo $(bar); echo $(bar2); echo $(bar3)',
+'',
+'a.c b.c c.c
+a.c b.c c.c
+x.c.o bar.o');
+
+# Patsubst without '%'--shouldn't match because the whole word has to match
+# in patsubst. Based on a bug report by Markus Mauhart <qwe123@chello.at>
+
+run_make_test('all:;@echo $(patsubst Foo,Repl,FooFoo)', '', 'FooFoo');
+
+# Variable subst where a pattern matches multiple times in a single word.
+# Based on a bug report by Markus Mauhart <qwe123@chello.at>
+
+run_make_test('
+A := fooBARfooBARfoo
+all:;@echo $(A:fooBARfoo=REPL)', '', 'fooBARREPL');
+
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/suffix b/tests/scripts/functions/suffix
new file mode 100644
index 0000000..0c4f919
--- /dev/null
+++ b/tests/scripts/functions/suffix
@@ -0,0 +1,57 @@
+$description = "The following test creates a makefile to test the suffix\n"
+ ."function. \n";
+
+$details = "The suffix function will return the string following the last _._\n"
+ ."the list provided. It will provide all of the unique suffixes found\n"
+ ."in the list. The long strings are sorted to remove duplicates.\n";
+
+# IF YOU NEED >1 MAKEFILE FOR THIS TEST, USE &get_tmpfile; TO GET
+# THE NAME OF THE MAKEFILE. THIS INSURES CONSISTENCY AND KEEPS TRACK OF
+# HOW MANY MAKEFILES EXIST FOR EASY DELETION AT THE END.
+# EXAMPLE: $makefile2 = &get_tmpfile;
+
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "string := word.pl general_test2.pl1 FORCE.pl word.pl3 generic_test.perl /tmp.c/bar foo.baz/bar.c MAKEFILES_variable.c\n"
+ ."string2 := \$(string) \$(string) \$(string) \$(string) \$(string) \$(string) \$(string)\n"
+ ."string3 := \$(string2) \$(string2) \$(string2) \$(string2) \$(string2) \$(string2) \$(string2)\n"
+ ."string4 := \$(string3) \$(string3) \$(string3) \$(string3) \$(string3) \$(string3) \$(string3)\n"
+ ."all: \n"
+ ."\t\@echo \$(suffix \$(string)) \n"
+ ."\t\@echo \$(sort \$(suffix \$(string4))) \n"
+ ."\t\@echo \$(suffix \$(string) a.out) \n"
+ ."\t\@echo \$(sort \$(suffix \$(string3))) \n";
+
+
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+
+# COMPARE RESULTS
+$answer = ".pl .pl1 .pl .pl3 .perl .c .c\n"
+ .".c .perl .pl .pl1 .pl3\n"
+ .".pl .pl1 .pl .pl3 .perl .c .c .out\n"
+ .".c .perl .pl .pl1 .pl3\n";
+
+# In this call to compare output, you should use the call &get_logfile(1)
+# to send the name of the last logfile created. You may also use
+# the special call &get_logfile(1) which returns the same as &get_logfile(1).
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/functions/value b/tests/scripts/functions/value
new file mode 100644
index 0000000..8e1a6f0
--- /dev/null
+++ b/tests/scripts/functions/value
@@ -0,0 +1,30 @@
+# -*-perl-*-
+
+$description = "Test the value function.";
+
+$details = "This is a test of the value function in GNU make.
+This function will evaluate to the value of the named variable with no
+further expansion performed on it.\n";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+export FOO = foo
+
+recurse = FOO = $FOO
+static := FOO = $(value FOO)
+
+all: ; @echo $(recurse) $(value recurse) $(static) $(value static)
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile, "", &get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "FOO = OO FOO = foo FOO = foo FOO = foo\n";
+
+
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/functions/warning b/tests/scripts/functions/warning
new file mode 100644
index 0000000..16eb83b
--- /dev/null
+++ b/tests/scripts/functions/warning
@@ -0,0 +1,83 @@
+# -*-Perl-*-
+
+$description = "\
+The following test creates a makefile to test the warning function.";
+
+$details = "";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+ifdef WARNING1
+$(warning warning is $(WARNING1))
+endif
+
+ifdef WARNING2
+$(warning warning is $(WARNING2))
+endif
+
+ifdef WARNING3
+all: some; @echo hi $(warning warning is $(WARNING3))
+endif
+
+ifdef WARNING4
+all: some; @echo hi
+ @echo there $(warning warning is $(WARNING4))
+endif
+
+some: ; @echo Some stuff
+
+EOF
+
+close(MAKEFILE);
+
+# Test #1
+
+&run_make_with_options($makefile, "WARNING1=yes", &get_logfile, 0);
+$answer = "$makefile:2: warning is yes\nSome stuff\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #2
+
+&run_make_with_options($makefile, "WARNING2=no", &get_logfile, 0);
+$answer = "$makefile:6: warning is no\nSome stuff\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #3
+
+&run_make_with_options($makefile, "WARNING3=maybe", &get_logfile, 0);
+$answer = "Some stuff\n$makefile:10: warning is maybe\nhi\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test #4
+
+&run_make_with_options($makefile, "WARNING4=definitely", &get_logfile, 0);
+$answer = "Some stuff\n$makefile:15: warning is definitely\nhi\nthere\n";
+&compare_output($answer,&get_logfile(1));
+
+# Test linenumber offset
+
+run_make_test(q!
+all: one two
+ $(warning in $@ line 3)
+ @true
+ $(warning in $@ line 5)
+
+one two:
+ $(warning in $@ line 8)
+ @true
+ $(warning in $@ line 10)
+!,
+ '', "#MAKEFILE#:8: in one line 8
+#MAKEFILE#:10: in one line 10
+#MAKEFILE#:8: in two line 8
+#MAKEFILE#:10: in two line 10
+#MAKEFILE#:3: in all line 3
+#MAKEFILE#:5: in all line 5\n");
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/functions/wildcard b/tests/scripts/functions/wildcard
new file mode 100644
index 0000000..bcd84ad
--- /dev/null
+++ b/tests/scripts/functions/wildcard
@@ -0,0 +1,103 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test wildcard
+expansions and the ability to put a command on the same
+line as the target name separated by a semi-colon.";
+
+$details = "\
+This test creates 4 files by the names of 1.example,
+two.example and 3.example. We execute three tests. The first
+executes the print1 target which tests the '*' wildcard by
+echoing all filenames by the name of '*.example'. The second
+test echo's all files which match '?.example' and
+[a-z0-9].example. Lastly we clean up all of the files using
+the '*' wildcard as in the first test";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<EOM;
+.PHONY: print1 print2 clean
+print1: ;\@echo \$(sort \$(wildcard example.*))
+print2:
+\t\@echo \$(sort \$(wildcard example.?))
+\t\@echo \$(sort \$(wildcard example.[a-z0-9]))
+\t\@echo \$(sort \$(wildcard example.[!A-Za-z_\\!]))
+clean:
+\t$delete_command \$(sort \$(wildcard example.*))
+EOM
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch("example.1");
+&touch("example.two");
+&touch("example.3");
+&touch("example.for");
+&touch("example._");
+
+# TEST #1
+# -------
+
+$answer = "example.1 example.3 example._ example.for example.two\n";
+
+&run_make_with_options($makefile,"print1",&get_logfile);
+
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #2
+# -------
+
+$answer = "example.1 example.3 example._\n"
+ ."example.1 example.3\n"
+ ."example.1 example.3\n";
+
+&run_make_with_options($makefile,"print2",&get_logfile);
+
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #3
+# -------
+
+$answer = "$delete_command example.1 example.3 example._ example.for example.two";
+if ($vos)
+{
+ $answer .= " \n";
+}
+else
+{
+ $answer .= "\n";
+}
+
+&run_make_with_options($makefile,"clean",&get_logfile);
+
+if ((-f "example.1")||(-f "example.two")||(-f "example.3")||(-f "example.for")) {
+ $test_passed = 0;
+}
+
+&compare_output($answer,&get_logfile(1));
+
+# TEST #4: Verify that failed wildcards don't return the pattern
+
+run_make_test(q!
+all: ; @echo $(wildcard xz--y*.7)
+!,
+ '', "\n");
+
+# TEST #5: wildcard used to verify file existence
+
+touch('xxx.yyy');
+
+run_make_test(q!exists: ; @echo file=$(wildcard xxx.yyy)!,
+ '', "file=xxx.yyy\n");
+
+unlink('xxx.yyy');
+
+run_make_test(q!exists: ; @echo file=$(wildcard xxx.yyy)!,
+ '', "file=\n");
+
+1;
diff --git a/tests/scripts/functions/word b/tests/scripts/functions/word
new file mode 100644
index 0000000..4dcc940
--- /dev/null
+++ b/tests/scripts/functions/word
@@ -0,0 +1,167 @@
+# -*-perl-*-
+$description = "\
+Test the word, words, wordlist, firstword, and lastword functions.\n";
+
+$details = "\
+Produce a variable with a large number of words in it,
+determine the number of words, and then read each one back.\n";
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE <<'EOF';
+string := word.pl general_test2.pl FORCE.pl word.pl generic_test.perl MAKEFILES_variable.pl
+string2 := $(string) $(string) $(string) $(string) $(string) $(string) $(string)
+string3 := $(string2) $(string2) $(string2) $(string2) $(string2) $(string2) $(string2)
+string4 := $(string3) $(string3) $(string3) $(string3) $(string3) $(string3) $(string3)
+all:
+ @echo $(words $(string))
+ @echo $(words $(string4))
+ @echo $(word 1, $(string))
+ @echo $(word 100, $(string))
+ @echo $(word 1, $(string))
+ @echo $(word 1000, $(string3))
+ @echo $(wordlist 3, 4, $(string))
+ @echo $(wordlist 4, 3, $(string))
+ @echo $(wordlist 1, 6, $(string))
+ @echo $(wordlist 5, 7, $(string))
+ @echo $(wordlist 100, 110, $(string))
+ @echo $(wordlist 7, 10, $(string2))
+EOF
+close(MAKEFILE);
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "6\n"
+ ."2058\n"
+ ."word.pl\n"
+ ."\n"
+ ."word.pl\n"
+ ."\n"
+ ."FORCE.pl word.pl\n"
+ ."\n"
+ ."word.pl general_test2.pl FORCE.pl word.pl generic_test.perl MAKEFILES_variable.pl\n"
+ ."generic_test.perl MAKEFILES_variable.pl\n"
+ ."\n"
+ ."word.pl general_test2.pl FORCE.pl word.pl\n";
+&compare_output($answer, &get_logfile(1));
+
+
+# Test error conditions
+
+run_make_test('FOO = foo bar biz baz
+
+word-e1: ; @echo $(word ,$(FOO))
+word-e2: ; @echo $(word abc ,$(FOO))
+word-e3: ; @echo $(word 1a,$(FOO))
+
+wordlist-e1: ; @echo $(wordlist ,,$(FOO))
+wordlist-e2: ; @echo $(wordlist abc ,,$(FOO))
+wordlist-e3: ; @echo $(wordlist 1, 12a ,$(FOO))',
+ 'word-e1',
+ "#MAKEFILE#:3: *** non-numeric first argument to 'word' function: ''. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'word-e2',
+ "#MAKEFILE#:4: *** non-numeric first argument to 'word' function: 'abc '. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'word-e3',
+ "#MAKEFILE#:5: *** non-numeric first argument to 'word' function: '1a'. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e1',
+ "#MAKEFILE#:7: *** non-numeric first argument to 'wordlist' function: ''. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e2',
+ "#MAKEFILE#:8: *** non-numeric first argument to 'wordlist' function: 'abc '. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e3',
+ "#MAKEFILE#:9: *** non-numeric second argument to 'wordlist' function: ' 12a '. Stop.",
+ 512);
+
+# Test error conditions again, but this time in a variable reference
+
+run_make_test('FOO = foo bar biz baz
+
+W = $(word $x,$(FOO))
+WL = $(wordlist $s,$e,$(FOO))
+
+word-e: ; @echo $(W)
+wordlist-e: ; @echo $(WL)',
+ 'word-e x=',
+ "#MAKEFILE#:3: *** non-numeric first argument to 'word' function: ''. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'word-e x=abc',
+ "#MAKEFILE#:3: *** non-numeric first argument to 'word' function: 'abc'. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'word-e x=0',
+ "#MAKEFILE#:3: *** first argument to 'word' function must be greater than 0. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e s= e=',
+ "#MAKEFILE#:4: *** non-numeric first argument to 'wordlist' function: ''. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e s=abc e=',
+ "#MAKEFILE#:4: *** non-numeric first argument to 'wordlist' function: 'abc'. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e s=4 e=12a',
+ "#MAKEFILE#:4: *** non-numeric second argument to 'wordlist' function: '12a'. Stop.",
+ 512);
+
+run_make_test(undef,
+ 'wordlist-e s=0 e=12',
+ "#MAKEFILE#:4: *** invalid first argument to 'wordlist' function: '0'. Stop.",
+ 512);
+
+
+# TEST #8 -- test $(firstword )
+#
+run_make_test('
+void :=
+list := $(void) foo bar baz #
+
+a := $(word 1,$(list))
+b := $(firstword $(list))
+
+.PHONY: all
+
+all:
+ @test "$a" = "$b" && echo $a
+',
+'',
+'foo');
+
+
+# TEST #9 -- test $(lastword )
+#
+run_make_test('
+void :=
+list := $(void) foo bar baz #
+
+a := $(word $(words $(list)),$(list))
+b := $(lastword $(list))
+
+.PHONY: all
+
+all:
+ @test "$a" = "$b" && echo $a
+',
+'',
+'baz');
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/misc/bs-nl b/tests/scripts/misc/bs-nl
new file mode 100644
index 0000000..fc323ce
--- /dev/null
+++ b/tests/scripts/misc/bs-nl
@@ -0,0 +1,227 @@
+# -*-perl-*-
+$description = "Test backslash-newline handling.";
+
+$details = "";
+
+# TEST #1
+# -------
+
+# Backslash-newlines in recipes
+
+# These are basic backslash-newlines with no tricks
+run_make_test("fast:;\@echo fa\\\nst\n",
+ '', 'fast');
+
+run_make_test("slow:;\@: no-op; echo sl\\\now\n",
+ '', 'slow');
+
+run_make_test("dquote:;\@echo \"dqu\\\note\"\n",
+ '', 'dquote');
+
+run_make_test("squote:;\@echo 'squ\\\note'\n",
+ '', "squ\\\note");
+
+# Ensure that a leading prefix character is omitted
+run_make_test("fast:;\@echo fa\\\n\tst\n",
+ '', 'fast');
+
+run_make_test("slow:;\@: no-op; echo sl\\\n\tow\n",
+ '', 'slow');
+
+run_make_test("dquote:;\@echo \"dqu\\\n\tote\"\n",
+ '', 'dquote');
+
+run_make_test("squote:;\@echo 'squ\\\n\tote'\n",
+ '', "squ\\\note");
+
+# Ensure that ONLY the leading prefix character is omitted
+run_make_test("fast:;\@echo fa\\\n\t st\n",
+ '', 'fa st');
+
+run_make_test("slow:;\@: no-op; echo sl\\\n\t\tow\n",
+ '', "sl ow");
+
+run_make_test("dquote:;\@echo \"dqu\\\n\t ote\"\n",
+ '', 'dqu ote');
+
+run_make_test("squote:;\@echo 'squ\\\n\t\t ote'\n",
+ '', "squ\\\n\t ote");
+
+# Backslash-newlines in variable values
+
+# Simple
+run_make_test(q!
+var = he\
+llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# Condense trailing space
+run_make_test(q!
+var = he \
+llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# Remove leading space
+run_make_test(q!
+var = he\
+ llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# Multiple bs/nl condensed
+run_make_test(q!
+var = he\
+\
+\
+ llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# POSIX: Preserve trailing space
+run_make_test(q!
+.POSIX:
+x = y
+var = he \
+llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# POSIX: One space per bs-nl
+run_make_test(q!
+.POSIX:
+x = y
+var = he\
+\
+\
+ llo
+var:;@echo '|$(var)|'!,
+ '', "|he llo|");
+
+# Savannah #39035: handle whitespace in call
+run_make_test(q!
+f = echo $(1)
+t:; @$(call f,"a \
+ b"); \
+ $(call f,"a \
+ b")
+!,
+ '', "a b\na b\n");
+
+# Savannah #38945: handle backslash CRLF
+# We need our own makefile so we can set binmode
+my $m1 = get_tmpfile();
+open(MAKEFILE, "> $m1");
+binmode(MAKEFILE);
+print MAKEFILE "FOO = foo \\\r\n";
+close(MAKEFILE);
+
+my $m2 = get_tmpfile();
+open(MAKEFILE, "> $m2");
+print MAKEFILE "include $m1\ndefine BAR\nall: ; \@echo \$(FOO) bar\nendef\n\$(eval \$(BAR))\n";
+close(MAKEFILE);
+
+run_make_with_options($m2, '', get_logfile());
+compare_output("foo bar\n", get_logfile(1));
+
+# Test different types of whitespace, and bsnl inside functions
+
+sub xlate
+{
+ $_ = $_[0];
+ s/\\r/\r/g;
+ s/\\t/\t/g;
+ s/\\f/\f/g;
+ s/\\v/\v/g;
+ s/\\n/\n/g;
+ return $_;
+}
+
+run_make_test(xlate(q!
+$(foreach\r a \t , b\t c \r ,$(info $a \r ) )
+all:;@:
+!),
+ '', "b \r \nc \r \n");
+
+run_make_test(xlate(q!
+all:;@:$(foreach\r a \t , b\t c \r ,$(info $a \r ) )
+!),
+ '', "b \r \nc \r \n");
+
+run_make_test(xlate(q!
+$(foreach \
+\r a \t\
+ , b\t \
+ c \r ,$(info \
+ $a \r ) \
+ )
+all:;@:
+!),
+ '', "b \r \nc \r \n");
+
+run_make_test(xlate(q!
+all:;@:$(foreach \
+\r a \t\
+ , b\t \
+ c \r ,$(info \
+ $a \r ) \
+ )
+!),
+ '', "b \r \nc \r \n");
+
+run_make_test(xlate(q!
+define FOO
+$(foreach
+\r a \t
+ , b\t
+ c \r ,$(info
+ $a \r )
+ )
+endef
+$(FOO)
+all:;@:
+!),
+ '', "b \r \nc \r \n");
+
+run_make_test(xlate(q!
+define FOO
+$(foreach
+\r a \t
+ , b\t
+ c \r ,$(info
+ $a \r )
+ )
+endef
+all:;@:$(FOO)
+!),
+ '', "b \r \nc \r \n");
+
+# Test variables in recipes that expand to multiple lines
+
+run_make_test(q!
+define var
+
+echo foo
+
+
+echo bar
+endef
+all:;$(var)
+!,
+ '', "echo foo\nfoo\necho bar\nbar\n");
+
+run_make_test(q!
+define var
+
+echo foo
+
+@
+
+echo bar
+endef
+all:;$(var)
+!,
+ '', "echo foo\nfoo\necho bar\nbar\n");
+
+1;
diff --git a/tests/scripts/misc/close_stdout b/tests/scripts/misc/close_stdout
new file mode 100644
index 0000000..18606c3
--- /dev/null
+++ b/tests/scripts/misc/close_stdout
@@ -0,0 +1,9 @@
+# -*-perl-*-
+
+$description = "Make sure make exits with an error if stdout is full.";
+
+if (-e '/dev/full') {
+ run_make_test('', '-v > /dev/full', '/^#MAKE#: write error/', 256);
+}
+
+1;
diff --git a/tests/scripts/misc/fopen-fail b/tests/scripts/misc/fopen-fail
new file mode 100644
index 0000000..2ec9810
--- /dev/null
+++ b/tests/scripts/misc/fopen-fail
@@ -0,0 +1,18 @@
+# -*-perl-*-
+
+$description = "Make sure make exits with an error if fopen fails.";
+
+# Recurse infinitely until we run out of open files, and ensure we
+# fail with a non-zero exit code. Don't bother to test the output
+# since it's hard to know what it will be, exactly.
+# See Savannah bug #27374.
+
+# Use a longer-than-normal timeout: some systems have more FDs available?
+# We also set ulimit -n 512 in check-regression in Makefile.am, which see.
+# See Savannah bug #42390.
+run_make_test(q!
+include $(lastword $(MAKEFILE_LIST))
+!,
+ '', undef, 512, 300);
+
+1;
diff --git a/tests/scripts/misc/general1 b/tests/scripts/misc/general1
new file mode 100644
index 0000000..352fc6a
--- /dev/null
+++ b/tests/scripts/misc/general1
@@ -0,0 +1,51 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test the
+simple functionality of make. It mimics the
+rebuilding of a product with dependencies.
+It also tests the simple definition of VPATH.";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<EOF;
+VPATH = $workdir
+edit: main.o kbd.o commands.o display.o \\
+ insert.o
+\t\@echo cc -o edit main.o kbd.o commands.o display.o \\
+ insert.o
+main.o : main.c defs.h
+\t\@echo cc -c main.c
+kbd.o : kbd.c defs.h command.h
+\t\@echo cc -c kbd.c
+commands.o : command.c defs.h command.h
+\t\@echo cc -c commands.c
+display.o : display.c defs.h buffer.h
+\t\@echo cc -c display.c
+insert.o : insert.c defs.h buffer.h
+\t\@echo cc -c insert.c
+EOF
+
+close(MAKEFILE);
+
+
+@files_to_touch = ("$workdir${pathsep}main.c","$workdir${pathsep}defs.h",
+ "$workdir${pathsep}kbd.c","$workdir${pathsep}command.h",
+ "$workdir${pathsep}commands.c","$workdir${pathsep}display.c",
+ "$workdir${pathsep}buffer.h","$workdir${pathsep}insert.c",
+ "$workdir${pathsep}command.c");
+
+&touch(@files_to_touch);
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "cc -c main.c\ncc -c kbd.c\ncc -c commands.c\ncc -c display.c
+cc -c insert.c\ncc -o edit main.o kbd.o commands.o display.o insert.o\n";
+
+# COMPARE RESULTS
+
+if (&compare_output($answer,&get_logfile(1))) {
+ unlink @files_to_touch;
+}
+
+1;
diff --git a/tests/scripts/misc/general2 b/tests/scripts/misc/general2
new file mode 100644
index 0000000..fb5c3aa
--- /dev/null
+++ b/tests/scripts/misc/general2
@@ -0,0 +1,50 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test the
+simple functionality of make. It is the same as
+general_test1 except that this one tests the
+definition of a variable to hold the object filenames.";
+
+open(MAKEFILE,"> $makefile");
+
+# The contents of the Makefile ...
+
+print MAKEFILE <<EOF;
+VPATH = $workdir
+objects = main.o kbd.o commands.o display.o insert.o
+edit: \$(objects)
+\t\@echo cc -o edit \$(objects)
+main.o : main.c defs.h
+\t\@echo cc -c main.c
+kbd.o : kbd.c defs.h command.h
+\t\@echo cc -c kbd.c
+commands.o : command.c defs.h command.h
+\t\@echo cc -c commands.c
+display.o : display.c defs.h buffer.h
+\t\@echo cc -c display.c
+insert.o : insert.c defs.h buffer.h
+\t\@echo cc -c insert.c
+EOF
+
+close(MAKEFILE);
+
+
+@files_to_touch = ("$workdir${pathsep}main.c","$workdir${pathsep}defs.h",
+ "$workdir${pathsep}kbd.c","$workdir${pathsep}command.h",
+ "$workdir${pathsep}commands.c","$workdir${pathsep}display.c",
+ "$workdir${pathsep}buffer.h","$workdir${pathsep}insert.c",
+ "$workdir${pathsep}command.c");
+
+&touch(@files_to_touch);
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "cc -c main.c\ncc -c kbd.c\ncc -c commands.c\ncc -c display.c
+cc -c insert.c\ncc -o edit main.o kbd.o commands.o display.o insert.o\n";
+
+if (&compare_output($answer,&get_logfile(1))) {
+ unlink @files_to_touch;
+}
+
+1;
diff --git a/tests/scripts/misc/general3 b/tests/scripts/misc/general3
new file mode 100644
index 0000000..7bbff1c
--- /dev/null
+++ b/tests/scripts/misc/general3
@@ -0,0 +1,315 @@
+# -*-perl-*-
+
+$description = "\
+This tests random features of the parser that need to be supported, and
+which have either broken at some point in the past or seem likely to
+break.";
+
+run_make_test("
+# We want to allow both empty commands _and_ commands that resolve to empty.
+EMPTY =
+
+.PHONY: all a1 a2 a3 a4
+all: a1 a2 a3 a4
+
+a1:;
+a2:
+\t
+a3:;\$(EMPTY)
+a4:
+\t\$(EMPTY)
+
+\# Non-empty lines that expand to nothing should also be ignored.
+STR = \# Some spaces
+TAB = \t \# A TAB and some spaces
+
+\$(STR)
+
+\$(STR) \$(TAB)",
+ '', "#MAKE#: Nothing to be done for 'all'.");
+
+# TEST 2
+
+# Make sure files without trailing newlines are handled properly.
+# Have to use the old style invocation to test this.
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+print MAKEFILE "all:;\@echo FOO = \$(FOO)\nFOO = foo";
+close(MAKEFILE);
+
+&run_make_with_options($makefile2,"",&get_logfile);
+$answer = "FOO = foo\n";
+&compare_output($answer,&get_logfile(1));
+
+# TEST 3
+
+# Check semicolons in variable references
+
+run_make_test('
+$(if true,$(info true; true))
+all: ; @:
+',
+ '', 'true; true');
+
+# TEST 4
+
+# Check that backslashes in command scripts are handled according to POSIX.
+# Checks Savannah bug # 1332.
+
+# Test the fastpath / no quotes
+run_make_test('
+all:
+ @echo foo\
+bar
+ @echo foo\
+ bar
+ @echo foo\
+ bar
+ @echo foo\
+ bar
+ @echo foo \
+bar
+ @echo foo \
+ bar
+ @echo foo \
+ bar
+ @echo foo \
+ bar
+',
+ '', 'foobar
+foobar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar');
+
+# Test the fastpath / single quotes
+run_make_test("
+all:
+ \@echo 'foo\\
+bar'
+ \@echo 'foo\\
+ bar'
+ \@echo 'foo\\
+ bar'
+ \@echo 'foo\\
+ bar'
+ \@echo 'foo \\
+bar'
+ \@echo 'foo \\
+ bar'
+ \@echo 'foo \\
+ bar'
+ \@echo 'foo \\
+ bar'
+",
+ '', 'foo\
+bar
+foo\
+bar
+foo\
+ bar
+foo\
+ bar
+foo \
+bar
+foo \
+bar
+foo \
+ bar
+foo \
+ bar');
+
+# Test the fastpath / double quotes
+run_make_test('
+all:
+ @echo "foo\
+bar"
+ @echo "foo\
+ bar"
+ @echo "foo\
+ bar"
+ @echo "foo\
+ bar"
+ @echo "foo \
+bar"
+ @echo "foo \
+ bar"
+ @echo "foo \
+ bar"
+ @echo "foo \
+ bar"
+',
+ '', 'foobar
+foobar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar
+foo bar');
+
+# Test the slow path / no quotes
+run_make_test('
+all:
+ @echo hi; echo foo\
+bar
+ @echo hi; echo foo\
+ bar
+ @echo hi; echo foo\
+ bar
+ @echo hi; echo foo\
+ bar
+ @echo hi; echo foo \
+bar
+ @echo hi; echo foo \
+ bar
+ @echo hi; echo foo \
+ bar
+ @echo hi; echo foo \
+ bar
+',
+ '', 'hi
+foobar
+hi
+foobar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar');
+
+# Test the slow path / no quotes. This time we put the slow path
+# determination _after_ the backslash-newline handling.
+run_make_test('
+all:
+ @echo foo\
+bar; echo hi
+ @echo foo\
+ bar; echo hi
+ @echo foo\
+ bar; echo hi
+ @echo foo\
+ bar; echo hi
+ @echo foo \
+bar; echo hi
+ @echo foo \
+ bar; echo hi
+ @echo foo \
+ bar; echo hi
+ @echo foo \
+ bar; echo hi
+',
+ '', 'foobar
+hi
+foobar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi');
+
+# Test the slow path / single quotes
+run_make_test("
+all:
+ \@echo hi; echo 'foo\\
+bar'
+ \@echo hi; echo 'foo\\
+ bar'
+ \@echo hi; echo 'foo\\
+ bar'
+ \@echo hi; echo 'foo\\
+ bar'
+ \@echo hi; echo 'foo \\
+bar'
+ \@echo hi; echo 'foo \\
+ bar'
+ \@echo hi; echo 'foo \\
+ bar'
+ \@echo hi; echo 'foo \\
+ bar'
+",
+ '', 'hi
+foo\
+bar
+hi
+foo\
+bar
+hi
+foo\
+ bar
+hi
+foo\
+ bar
+hi
+foo \
+bar
+hi
+foo \
+bar
+hi
+foo \
+ bar
+hi
+foo \
+ bar');
+
+# Test the slow path / double quotes
+run_make_test('
+all:
+ @echo hi; echo "foo\
+bar"
+ @echo hi; echo "foo\
+ bar"
+ @echo hi; echo "foo\
+ bar"
+ @echo hi; echo "foo\
+ bar"
+ @echo hi; echo "foo \
+bar"
+ @echo hi; echo "foo \
+ bar"
+ @echo hi; echo "foo \
+ bar"
+ @echo hi; echo "foo \
+ bar"
+',
+ '', 'hi
+foobar
+hi
+foobar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar
+hi
+foo bar');
+
+run_make_test('x:;@-exit 1', '', "#MAKE#: [#MAKEFILE#:1: x] Error 1 (ignored)\n");
+
+1;
diff --git a/tests/scripts/misc/general4 b/tests/scripts/misc/general4
new file mode 100644
index 0000000..6d42a16
--- /dev/null
+++ b/tests/scripts/misc/general4
@@ -0,0 +1,82 @@
+# -*-perl-*-
+
+$description = "\
+This tests random features of make's algorithms, often somewhat obscure,
+which have either broken at some point in the past or seem likely to
+break.";
+
+run_make_test('
+# Make sure that subdirectories built as prerequisites are actually handled
+# properly.
+
+all: dir/subdir/file.a
+
+dir/subdir: ; @echo mkdir -p dir/subdir
+
+dir/subdir/file.b: dir/subdir ; @echo touch dir/subdir/file.b
+
+dir/subdir/%.a: dir/subdir/%.b ; @echo cp $< $@',
+ '', "mkdir -p dir/subdir\ntouch dir/subdir/file.b\ncp dir/subdir/file.b dir/subdir/file.a\n");
+
+# Test implicit rules
+
+&touch('foo.c');
+run_make_test('foo: foo.o',
+ 'CC="@echo cc" OUTPUT_OPTION=',
+ 'cc -c foo.c
+cc foo.o -o foo');
+unlink('foo.c');
+
+
+# Test implicit rules with '$' in the name (see se_implicit)
+
+run_make_test(q!
+%.foo : baz$$bar ; @echo 'done $<'
+%.foo : bar$$baz ; @echo 'done $<'
+test.foo:
+baz$$bar bar$$baz: ; @echo '$@'
+!,
+ '',
+ "baz\$bar\ndone baz\$bar");
+
+
+# Test implicit rules with '$' in the name (see se_implicit)
+# Use the '$' in the pattern.
+
+run_make_test(q!
+%.foo : %$$bar ; @echo 'done $<'
+test.foo:
+test$$bar: ; @echo '$@'
+!,
+ '',
+ "test\$bar\ndone test\$bar");
+
+# Make sure that subdirectories built as prerequisites are actually handled
+# properly... this time with '$'
+
+run_make_test(q!
+
+all: dir/subdir/file.$$a
+
+dir/subdir: ; @echo mkdir -p '$@'
+
+dir/subdir/file.$$b: dir/subdir ; @echo touch '$@'
+
+dir/subdir/%.$$a: dir/subdir/%.$$b ; @echo 'cp $< $@'
+!,
+ '', "mkdir -p dir/subdir\ntouch dir/subdir/file.\$b\ncp dir/subdir/file.\$b dir/subdir/file.\$a\n");
+
+# Test odd whitespace at the beginning of a line
+
+run_make_test("
+all:
+ \f
+
+ \\
+ \f \\
+ \013 \\
+all: ; \@echo hi
+",
+ '', "hi\n");
+
+1;
diff --git a/tests/scripts/misc/utf8 b/tests/scripts/misc/utf8
new file mode 100644
index 0000000..2adcd07
--- /dev/null
+++ b/tests/scripts/misc/utf8
@@ -0,0 +1,14 @@
+# -*-perl-*-
+$description = "Test utf8 handling.";
+
+$details = "";
+
+# Variable names containing UTF8 characters
+run_make_test("
+\xe2\x96\xaa := hello
+\$(info \$(\xe2\x96\xaa))
+all:
+",
+ '', "hello\n#MAKE#: Nothing to be done for 'all'.");
+
+1;
diff --git a/tests/scripts/options/dash-B b/tests/scripts/options/dash-B
new file mode 100644
index 0000000..4c4c4cf
--- /dev/null
+++ b/tests/scripts/options/dash-B
@@ -0,0 +1,87 @@
+# -*-perl-*-
+
+$description = "Test make -B (always remake) option.\n";
+
+$details = "\
+Construct a simple makefile that builds a target.
+Invoke make once, so it builds everything. Invoke it again and verify
+that nothing is built. Then invoke it with -B and verify that everything
+is built again.";
+
+&touch('bar.x');
+
+run_make_test('
+.SUFFIXES:
+
+.PHONY: all
+all: foo
+
+foo: bar.x
+ @echo cp $< $@
+ @echo "" > $@
+',
+ '', 'cp bar.x foo');
+
+run_make_test(undef, '', "#MAKE#: Nothing to be done for 'all'.");
+run_make_test(undef, '-B', 'cp bar.x foo');
+
+# Put the timestamp for foo into the future; it should still be remade.
+
+utouch(1000, 'foo');
+run_make_test(undef, '', "#MAKE#: Nothing to be done for 'all'.");
+run_make_test(undef, '-B', 'cp bar.x foo');
+
+# Clean up
+
+rmfiles('bar.x', 'foo');
+
+# Test -B with the re-exec feature: we don't want to re-exec forever
+# Savannah bug # 7566
+
+run_make_test('
+all: ; @:
+$(info MAKE_RESTARTS=$(MAKE_RESTARTS))
+include foo.x
+foo.x: ; @touch $@
+',
+ '-B', 'MAKE_RESTARTS=
+MAKE_RESTARTS=1');
+
+rmfiles('foo.x');
+
+# Test -B with the re-exec feature: we DO want -B in the "normal" part of the
+# makefile.
+
+&touch('blah.x');
+
+run_make_test('
+all: blah.x ; @echo $@
+$(info MAKE_RESTARTS=$(MAKE_RESTARTS))
+include foo.x
+foo.x: ; @touch $@
+blah.x: ; @echo $@
+',
+ '-B', 'MAKE_RESTARTS=
+MAKE_RESTARTS=1
+blah.x
+all');
+
+rmfiles('foo.x', 'blah.x');
+
+# Test that $? is set properly with -B; all prerequisites will be newer!
+
+utouch(-10, 'x.b');
+touch('x.a');
+
+run_make_test(q!
+x.a: x.b ; @echo $?
+!,
+ '-B', "x.b\n");
+
+unlink(qw(x.a x.b));
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/options/dash-C b/tests/scripts/options/dash-C
new file mode 100644
index 0000000..42d0a8b
--- /dev/null
+++ b/tests/scripts/options/dash-C
@@ -0,0 +1,71 @@
+# -*-perl-*-
+
+$description = "Test the -C option to GNU make.";
+
+$details = "\
+This test is similar to the clean test except that this test creates the file
+to delete in the work directory instead of the current directory. Make is
+called from another directory using the -C workdir option so that it can both
+find the makefile and the file to delete in the work directory.";
+
+$example = $workdir . $pathsep . "EXAMPLE";
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE <<EOF;
+all: ; \@echo This makefile did not clean the dir ... good
+clean: ; $delete_command EXAMPLE\$(ext)
+EOF
+close(MAKEFILE);
+
+# TEST #1
+# -------
+&touch($example);
+
+&run_make_with_options("${testname}.mk",
+ "-C $workdir clean",
+ &get_logfile);
+
+chdir $workdir;
+$wpath = &get_this_pwd;
+chdir $pwd;
+
+if (-f $example) {
+ $test_passed = 0;
+}
+
+# Create the answer to what should be produced by this Makefile
+$answer = "$make_name: Entering directory '$wpath'\n"
+ . "$delete_command EXAMPLE\n"
+ . "$make_name: Leaving directory '$wpath'\n";
+
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #2
+# -------
+# Do it again with trailing "/"; this should work the same
+
+$example .= "slash";
+
+&touch($example);
+
+&run_make_with_options("${testname}.mk",
+ "-C $workdir/ clean ext=slash",
+ &get_logfile);
+
+chdir $workdir;
+$wpath = &get_this_pwd;
+chdir $pwd;
+
+if (-f $example) {
+ $test_passed = 0;
+}
+
+# Create the answer to what should be produced by this Makefile
+$answer = "$make_name: Entering directory '$wpath'\n"
+ . "$delete_command EXAMPLEslash\n"
+ . "$make_name: Leaving directory '$wpath'\n";
+
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/options/dash-I b/tests/scripts/options/dash-I
new file mode 100644
index 0000000..d47a8d8
--- /dev/null
+++ b/tests/scripts/options/dash-I
@@ -0,0 +1,59 @@
+# -*-perl-*-
+
+$description ="The following test creates a makefile to test the -I option.";
+
+$details = "\
+This test tests the -I option by including a filename in
+another directory and giving make that directory name
+under -I in the command line. Without this option, the make
+would fail to find the included file. It also checks to make
+sure that the -I option gets passed to recursive makes.";
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+$mf2 = substr ($makefile2, index ($makefile2, $pathsep) + 1);
+print MAKEFILE <<EOF;
+include $mf2
+all:
+\t\@echo There should be no errors for this makefile.
+EOF
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile2");
+
+print MAKEFILE <<EOF;
+ANOTHER:
+\t\@echo This is another included makefile
+recurse:
+\t\$(MAKE) ANOTHER -f $makefile
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,"-I $workdir all",&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "There should be no errors for this makefile.\n";
+&compare_output($answer,&get_logfile(1));
+
+
+$answer = "This is another included makefile\n";
+&run_make_with_options($makefile,"-I $workdir ANOTHER",&get_logfile);
+&compare_output($answer,&get_logfile(1));
+
+
+$answer = "$mkpath ANOTHER -f $makefile
+${make_name}[1]: Entering directory '$pwd'
+This is another included makefile
+${make_name}[1]: Leaving directory '$pwd'\n";
+
+&run_make_with_options($makefile,"-I $workdir recurse",&get_logfile);
+&compare_output($answer,&get_logfile(1));
diff --git a/tests/scripts/options/dash-W b/tests/scripts/options/dash-W
new file mode 100644
index 0000000..857b1cc
--- /dev/null
+++ b/tests/scripts/options/dash-W
@@ -0,0 +1,91 @@
+# -*-perl-*-
+
+$description = "Test make -W (what if) option.\n";
+
+# Basic build
+
+run_make_test('
+a.x: b.x
+a.x b.x: ; echo >> $@
+',
+ '', "echo >> b.x\necho >> a.x");
+
+# Run it again: nothing should happen
+
+run_make_test(undef, '', "#MAKE#: 'a.x' is up to date.");
+
+# Now run it with -W b.x: should rebuild a.x
+
+run_make_test(undef, '-W b.x', 'echo >> a.x');
+
+# Put the timestamp for a.x into the future; it should still be remade.
+
+utouch(1000, 'a.x');
+run_make_test(undef, '', "#MAKE#: 'a.x' is up to date.");
+run_make_test(undef, '-W b.x', 'echo >> a.x');
+
+# Clean up
+
+rmfiles('a.x', 'b.x');
+
+# Test -W with the re-exec feature: we don't want to re-exec forever
+# Savannah bug # 7566
+
+# First set it up with a normal build
+
+run_make_test('
+all: baz.x ; @:
+include foo.x
+foo.x: bar.x
+ @echo "\$$(info restarts=\$$(MAKE_RESTARTS))" > $@
+ @echo "touch $@"
+bar.x: ; echo >> $@
+baz.x: bar.x ; @echo "touch $@"
+',
+ '', 'echo >> bar.x
+touch foo.x
+restarts=1
+touch baz.x');
+
+# Now run with -W bar.x
+
+# Tweak foo.x's timestamp so the update will change it.
+&utouch(1000, 'foo.x');
+
+run_make_test(undef, '-W bar.x', "restarts=\ntouch foo.x\nrestarts=1\ntouch baz.x");
+
+rmfiles('foo.x', 'bar.x');
+
+# Test -W on vpath-found files: it should take effect.
+# Savannah bug # 15341
+
+mkdir('x-dir', 0777);
+utouch(-20, 'x-dir/x');
+touch('y');
+
+run_make_test('
+y: x ; @echo cp $< $@
+',
+ '-W x-dir/x VPATH=x-dir',
+ 'cp x-dir/x y');
+
+# Make sure ./ stripping doesn't interfere with the match.
+
+run_make_test('
+y: x ; @echo cp $< $@
+',
+ '-W ./x-dir/x VPATH=x-dir',
+ 'cp x-dir/x y');
+
+run_make_test(undef,
+ '-W x-dir/x VPATH=./x-dir',
+ 'cp ./x-dir/x y');
+
+unlink(qw(y x-dir/x));
+rmdir('x-dir');
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/options/dash-e b/tests/scripts/options/dash-e
new file mode 100644
index 0000000..17c3fc8
--- /dev/null
+++ b/tests/scripts/options/dash-e
@@ -0,0 +1,24 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to ...";
+
+$details = "";
+
+$extraENV{GOOGLE} = 'boggle';
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+GOOGLE = bazzle
+all:; @echo "$(GOOGLE)"
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile, '-e' ,&get_logfile);
+
+$answer = "boggle\n";
+
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/options/dash-f b/tests/scripts/options/dash-f
new file mode 100644
index 0000000..3aa4746
--- /dev/null
+++ b/tests/scripts/options/dash-f
@@ -0,0 +1,85 @@
+$description = "The following test tests that if you specify greater \n"
+ ."than one '-f makefilename' on the command line, \n"
+ ."that make concatenates them. This test creates three \n"
+ ."makefiles and specifies all of them with the -f option \n"
+ ."on the command line. To make sure they were concatenated, \n"
+ ."we then call make with the rules from the concatenated \n"
+ ."makefiles one at a time. Finally, it calls all three \n"
+ ."rules in one call to make and checks that the output\n"
+ ."is in the correct order.";
+
+$makefile2 = &get_tmpfile;
+$makefile3 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "all: \n";
+print MAKEFILE "\t\@echo This is the output from the original makefile\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+# Create a second makefile
+open(MAKEFILE,"> $makefile2");
+print MAKEFILE "TWO: \n";
+print MAKEFILE "\t\@echo This is the output from makefile 2\n";
+close(MAKEFILE);
+
+# Create a third makefile
+open(MAKEFILE,"> $makefile3");
+print MAKEFILE "THREE: \n";
+print MAKEFILE "\t\@echo This is the output from makefile 3\n";
+close(MAKEFILE);
+
+
+# Create the answer to what should be produced by this Makefile
+$answer = "This is the output from the original makefile\n";
+
+# Run make to catch the default rule
+&run_make_with_options($makefile,"-f $makefile2 -f $makefile3",&get_logfile,0);
+
+&compare_output($answer,&get_logfile(1));
+
+
+# Run Make again with the rule from the second makefile: TWO
+$answer = "This is the output from makefile 2\n";
+
+&run_make_with_options($makefile,"-f $makefile2 -f $makefile3 TWO",&get_logfile,0);
+
+&compare_output($answer,&get_logfile(1));
+
+
+# Run Make again with the rule from the third makefile: THREE
+
+$answer = "This is the output from makefile 3\n";
+&run_make_with_options($makefile,
+ "-f $makefile2 -f $makefile3 THREE",
+ &get_logfile,
+ 0);
+&compare_output($answer,&get_logfile(1));
+
+
+# Run Make again with ALL three rules in the order 2 1 3 to make sure
+# that all rules are executed in the proper order
+
+$answer = "This is the output from makefile 2\n";
+$answer .= "This is the output from the original makefile\n";
+$answer .= "This is the output from makefile 3\n";
+&run_make_with_options($makefile,
+ "-f $makefile2 -f $makefile3 TWO all THREE",
+ &get_logfile,
+ 0);
+&compare_output($answer,&get_logfile(1));
+
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/options/dash-k b/tests/scripts/options/dash-k
new file mode 100644
index 0000000..85dd0b0
--- /dev/null
+++ b/tests/scripts/options/dash-k
@@ -0,0 +1,114 @@
+# -*-perl-*-
+
+$description = "Test the make -k (don't stop on error) option.\n";
+
+$details = "\
+The makefile created in this test is a simulation of building
+a small product. However, the trick to this one is that one
+of the dependencies of the main target does not exist.
+Without the -k option, make would fail immediately and not
+build any part of the target. What we are looking for here,
+is that make builds the rest of the dependencies even though
+it knows that at the end it will fail to rebuild the main target.";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<EOF;
+VPATH = $workdir
+edit: main.o kbd.o commands.o display.o
+\t\@echo cc -o edit main.o kbd.o commands.o display.o
+
+main.o : main.c defs.h
+\t\@echo cc -c main.c
+
+kbd.o : kbd.c defs.h command.h
+\t\@echo cc -c kbd.c
+
+commands.o : command.c defs.h command.h
+\t\@echo cc -c commands.c
+
+display.o : display.c defs.h buffer.h
+\t\@echo cc -c display.c
+EOF
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+@files_to_touch = ("$workdir${pathsep}main.c","$workdir${pathsep}defs.h",
+ "$workdir${pathsep}command.h",
+ "$workdir${pathsep}commands.c","$workdir${pathsep}display.c",
+ "$workdir${pathsep}buffer.h",
+ "$workdir${pathsep}command.c");
+
+&touch(@files_to_touch);
+
+if ($vos) {
+ $error_code = 3307;
+}
+else {
+ $error_code = 512;
+}
+
+&run_make_with_options($makefile, "-k", &get_logfile, $error_code);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "cc -c main.c
+$make_name: *** No rule to make target 'kbd.c', needed by 'kbd.o'.
+cc -c commands.c
+cc -c display.c
+$make_name: Target 'edit' not remade because of errors.\n";
+
+# COMPARE RESULTS
+
+&compare_output($answer, &get_logfile(1));
+
+unlink(@files_to_touch) unless $keep;
+
+
+# TEST 1: Make sure that top-level targets that depend on targets that
+# previously failed to build, aren't attempted. Regression for PR/1634.
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+print MAKEFILE <<'EOF';
+.SUFFIXES:
+
+all: exe1 exe2; @echo making $@
+
+exe1 exe2: lib; @echo cp $^ $@
+
+lib: foo.o; @echo cp $^ $@
+
+foo.o: ; exit 1
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile2, "-k", &get_logfile, $error_code);
+
+$answer = "exit 1
+$make_name: *** [$makefile2:9: foo.o] Error 1
+$make_name: Target 'all' not remade because of errors.\n";
+
+&compare_output($answer, &get_logfile(1));
+
+# TEST -- make sure we keep the error code if we can't create an included
+# makefile.
+
+run_make_test('all: ; @echo hi
+include ifile
+ifile: no-such-file; @false
+',
+ '-k',
+ "#MAKEFILE#:2: ifile: No such file or directory
+#MAKE#: *** No rule to make target 'no-such-file', needed by 'ifile'.
+#MAKE#: Failed to remake makefile 'ifile'.
+hi\n",
+ 512);
+
+1;
diff --git a/tests/scripts/options/dash-l b/tests/scripts/options/dash-l
new file mode 100644
index 0000000..0b0f196
--- /dev/null
+++ b/tests/scripts/options/dash-l
@@ -0,0 +1,56 @@
+# -*-perl-*-
+# Date: Tue, 11 Aug 1992 09:34:26 -0400
+# From: pds@lemming.webo.dg.com (Paul D. Smith)
+
+$description = "Test load balancing (-l) option.";
+
+$details = "\
+This test creates a makefile where all depends on three rules
+which contain the same body. Each rule checks for the existence
+of a temporary file; if it exists an error is generated. If it
+doesn't exist then it is created, the rule sleeps, then deletes
+the temp file again. Thus if any of the rules are run in
+parallel the test will fail. When make is called in this test,
+it is given the -l option with a value of 0.0001. This ensures
+that the load will be above this number and make will therefore
+decide that it cannot run more than one job even though -j 4 was
+also specified on the command line.";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<'EOF';
+SHELL = /bin/sh
+
+define test
+if [ ! -f test-file ]; then \
+ echo >> test-file; sleep 2; rm -f test-file; \
+else \
+ echo $@ FAILED; \
+fi
+endef
+
+all : ONE TWO THREE
+ONE : ; @$(test)
+TWO : ; @$(test)
+THREE : ; @$(test)
+EOF
+
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+$mkoptions = "-l 0.0001";
+$mkoptions .= " -j 4" if ($parallel_jobs);
+
+# We have to wait longer than the default (5s).
+&run_make_with_options($makefile, $mkoptions, &get_logfile, 0, 8);
+
+$slurp = &read_file_into_string (&get_logfile(1));
+if ($slurp !~ /cannot enforce load limit/) {
+ &compare_output("", &get_logfile(1));
+}
+
+1;
diff --git a/tests/scripts/options/dash-n b/tests/scripts/options/dash-n
new file mode 100644
index 0000000..02ae4a9
--- /dev/null
+++ b/tests/scripts/options/dash-n
@@ -0,0 +1,100 @@
+# -*-perl-*-
+$description = "Test the -n option.\n";
+
+$details = "Try various uses of -n and ensure they all give the correct results.\n";
+
+touch('orig');
+
+run_make_test(q!
+final: intermediate ; echo >> $@
+intermediate: orig ; echo >> $@
+!,
+ '', "echo >> intermediate\necho >> final\n");
+
+# TEST 1
+
+run_make_test(undef, '-Worig -n', "echo >> intermediate\necho >> final\n");
+
+rmfiles(qw(orig intermediate final));
+
+# We consider the actual updated timestamp of targets with all
+# recursive commands, even with -n. Switching this to the new model
+# is non-trivial because we use a trick below to change the log content
+# before we compare it ...
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+
+print MAKEFILE <<'EOF';
+.SUFFIXES:
+BAR = # nothing
+FOO = +$(BAR)
+a: b; echo > $@
+b: c; $(FOO)
+EOF
+
+close(MAKEFILE);
+
+&utouch(-20, 'b');
+&utouch(-10, 'a');
+&touch('c');
+
+# TEST 2
+
+&run_make_with_options($makefile2, "", &get_logfile);
+$answer = "$make_name: 'a' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 3
+
+&run_make_with_options($makefile2, "-n", &get_logfile);
+$answer = "$make_name: 'a' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST 4
+
+unlink(qw(a b));
+
+&run_make_with_options($makefile2, "-t -n", &get_logfile);
+
+open(DASH_N_LOG, ">>" . &get_logfile(1));
+print DASH_N_LOG "a exists but should not!\n" if -e 'a';
+print DASH_N_LOG "b exists but should not!\n" if -e 'b';
+close(DASH_N_LOG);
+
+&compare_output("touch b\ntouch a\n", &get_logfile(1));
+
+# CLEANUP
+
+unlink(qw(a b c));
+
+# Ensure -n continues to be included with recursive/re-execed make
+# See Savannah bug #38051
+
+$topmake = &get_tmpfile;
+$submake = &get_tmpfile;
+
+open(MAKEFILE, "> $topmake");
+print MAKEFILE <<"EOF";
+foo: ; \@\$(MAKE) -f "$submake" bar
+EOF
+close(MAKEFILE);
+
+
+# The bar target should print what would happen, but not actually run
+open(MAKEFILE, "> $submake");
+print MAKEFILE <<'EOF';
+inc: ; touch $@
+-include inc
+bar: ; @echo $(strip $(MAKEFLAGS))
+EOF
+close(MAKEFILE);
+
+&run_make_with_options($topmake, '-n --no-print-directory', &get_logfile);
+$answer = "$make_command -f \"$submake\" bar\ntouch inc\necho n --no-print-directory\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('inc');
+
+1;
diff --git a/tests/scripts/options/dash-q b/tests/scripts/options/dash-q
new file mode 100644
index 0000000..e67b55d
--- /dev/null
+++ b/tests/scripts/options/dash-q
@@ -0,0 +1,86 @@
+# -*-perl-*-
+$description = "Test the -q option.\n";
+
+$details = "Try various uses of -q and ensure they all give the correct results.\n";
+
+# TEST 0
+
+run_make_test(qq!
+one:
+two: ;
+three: ; :
+four: ; \$(.XY)
+five: ; \\
+ \$(.XY)
+six: ; \\
+ \$(.XY)
+\t\$(.XY)
+seven: ; \\
+ \$(.XY)
+\t: foo
+\t\$(.XY)
+!,
+ '-q one', '');
+
+# TEST 1
+
+run_make_test(undef, '-q two', '');
+
+# TEST 2
+
+run_make_test(undef, '-q three', '', 256);
+
+# TEST 3
+
+run_make_test(undef, '-q four', '');
+
+# TEST 4
+
+run_make_test(undef, '-q five', '');
+
+# TEST 5
+
+run_make_test(undef, '-q six', '');
+
+# TEST 6
+
+run_make_test(undef, '-q seven', '', 256);
+
+# TEST 7 : Savannah bug # 7144
+
+run_make_test('
+one:: ; @echo one
+one:: ; @echo two
+',
+ '-q', '', 256);
+
+# TEST 7 : Savannah bug # 42249
+# Make sure we exit with 1 even for prerequisite updates
+run_make_test('
+build-stamp: ; echo $@
+build-arch: build-stamp
+build-x: build-arch
+build-y: build-x
+',
+ '-q build-y', '', 256);
+
+# TEST 8
+# Make sure we exit with 2 on error even with -q
+run_make_test('
+build-stamp: ; echo $@
+build-arch: build-stamp-2
+build-x: build-arch
+build-y: build-x
+',
+ '-q build-y', "#MAKE#: *** No rule to make target 'build-stamp-2', needed by 'build-arch'. Stop.\n", 512);
+
+# TEST 9 : Savannah bug # 47151
+# Make sure we exit with 1 when invoking a recursive make
+run_make_test('
+foo: bar ; echo foo
+bar: ; @$(MAKE) -f #MAKEFILE# baz
+baz: ; echo baz
+',
+ '-q foo', '', 256);
+
+1;
diff --git a/tests/scripts/options/dash-t b/tests/scripts/options/dash-t
new file mode 100644
index 0000000..ec27d7a
--- /dev/null
+++ b/tests/scripts/options/dash-t
@@ -0,0 +1,58 @@
+# -*-perl-*-
+
+$description = "Test the -t option.\n";
+
+$details = "Look out for regressions of prior bugs related to -t.\n";
+# That means, nobody has even tried to make the tests below comprehensive
+
+# TEST 0
+# bug reported by Henning Makholm <henning@makholm.net> on 2001-11-03:
+# make 3.79.1 touches only interm-[ab] but reports final-[a] as
+# 'up to date' without touching them.
+# The 'obvious' fix didn't work for double-colon rules, so pay special
+# attention to them.
+
+open(MAKEFILE, "> $makefile");
+print MAKEFILE <<'EOMAKE';
+final-a: interm-a ; echo >> $@
+final-b: interm-b ; echo >> $@
+interm-a:: orig1-a ; echo >> $@
+interm-a:: orig2-a ; echo >> $@
+interm-b:: orig1-b ; echo >> $@
+interm-b:: orig2-b ; echo >> $@
+EOMAKE
+close(MAKEFILE);
+
+&utouch(-30, 'orig1-a','orig2-b');
+&utouch(-20, 'interm-a','interm-b');
+&utouch(-10, 'final-a','final-b');
+&touch('orig2-a','orig1-b');
+
+&run_make_with_options($makefile, "-t final-a final-b", &get_logfile);
+$answer = "touch interm-a\ntouch final-a\ntouch interm-b\ntouch final-b\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('orig1-a', 'orig2-a', 'interm-a', 'final-a');
+unlink('orig1-b', 'orig2-b', 'interm-b', 'final-b');
+
+# TEST 1
+# -t should not touch files with no commands.
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+print MAKEFILE <<'EOMAKE';
+
+PHOOEY: xxx
+xxx: ; @:
+
+EOMAKE
+close(MAKEFILE);
+
+&run_make_with_options($makefile2, "-t", &get_logfile);
+$answer = "touch xxx\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('xxx');
+
+1;
diff --git a/tests/scripts/options/eval b/tests/scripts/options/eval
new file mode 100644
index 0000000..0f82409
--- /dev/null
+++ b/tests/scripts/options/eval
@@ -0,0 +1,29 @@
+# -*-perl-*-
+
+$description = "Test the --eval option.";
+
+$details = "Verify that --eval options take effect,
+and are passed to sub-makes.";
+
+# Verify that --eval is evaluated first
+run_make_test(q!
+BAR = bar
+all: ; @echo all
+recurse: ; @$(MAKE) -f #MAKEFILE# && echo recurse!,
+ '--eval=\$\(info\ eval\) FOO=\$\(BAR\)', "eval\nall");
+
+# Make sure that --eval is handled correctly during recursion
+run_make_test(undef, '--no-print-directory --eval=\$\(info\ eval\) recurse',
+ "eval\neval\nall\nrecurse");
+
+# Make sure that --eval is handled correctly during restarting
+run_make_test(q!
+all: ; @echo $@
+-include gen.mk
+gen.mk: ; @echo > $@
+!,
+ '--eval=\$\(info\ eval\)', "eval\neval\nall");
+
+unlink('gen.mk');
+
+1;
diff --git a/tests/scripts/options/general b/tests/scripts/options/general
new file mode 100644
index 0000000..d35bb35
--- /dev/null
+++ b/tests/scripts/options/general
@@ -0,0 +1,35 @@
+# -*-perl-*-
+$description = "Test generic option processing.\n";
+
+open(MAKEFILE, "> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "foo 1foo: ; \@echo \$\@\n";
+
+close(MAKEFILE);
+
+# TEST 0
+
+&run_make_with_options($makefile, "-j 1foo", &get_logfile);
+if (!$parallel_jobs) {
+ $answer = "$make_name: Parallel jobs (-j) are not supported on this platform.\n$make_name: Resetting to single job (-j1) mode.\n1foo\n";
+}
+else {
+ $answer = "1foo\n";
+}
+
+# TEST 1
+
+# This test prints the usage string; I don't really know a good way to
+# test it. I guess I could invoke make with a known-bad option to see
+# what the usage looks like, then compare it to what I get here... :(
+
+# If I were always on UNIX, I could invoke it with 2>/dev/null, then
+# just check the error code.
+
+&run_make_with_options($makefile, "-j1foo 2>/dev/null", &get_logfile, 512);
+$answer = "";
+&compare_output($answer, &get_logfile(1));
+
+1;
diff --git a/tests/scripts/options/print-directory b/tests/scripts/options/print-directory
new file mode 100644
index 0000000..db762b2
--- /dev/null
+++ b/tests/scripts/options/print-directory
@@ -0,0 +1,33 @@
+# -*-perl-*-
+
+$description = "Test the -w option to GNU make.";
+
+# Simple test without -w
+run_make_test(q!
+all: ; @echo hi
+!,
+ "", "hi\n");
+
+# Simple test with -w
+run_make_test(undef, "-w",
+ "#MAKE#: Entering directory '#PWD#'\nhi\n#MAKE#: Leaving directory '#PWD#'\n");
+
+# Test makefile rebuild to ensure no enter/leave
+run_make_test(q!
+include foo
+all: ;@:
+foo: ; touch foo
+!,
+ "", "touch foo\n");
+unlink('foo');
+
+# Test makefile rebuild with -w
+run_make_test(q!
+include foo
+all: ;@:
+foo: ; touch foo
+!,
+ "-w", "#MAKE#: Entering directory '#PWD#'\ntouch foo\n#MAKE#: Leaving directory '#PWD#'\n");
+unlink('foo');
+
+1;
diff --git a/tests/scripts/options/symlinks b/tests/scripts/options/symlinks
new file mode 100644
index 0000000..a1bfce0
--- /dev/null
+++ b/tests/scripts/options/symlinks
@@ -0,0 +1,68 @@
+# -*-perl-*-
+
+$description = "Test the -L option.";
+
+$details = "Verify that symlink handling with and without -L works properly.";
+
+# Only run these tests if the system sypports symlinks
+
+# Apparently the Windows port of Perl reports that it does support symlinks
+# (in that the symlink() function doesn't fail) but it really doesn't, so
+# check for it explicitly.
+
+if ($port_type eq 'W32' || !( eval { symlink("",""); 1 })) {
+ # This test is N/A
+ -1;
+} else {
+
+ # Set up a symlink sym -> dep
+ # We'll make both dep and targ older than sym
+ $pwd =~ m%/([^/]+)$%;
+ $dirnm = $1;
+ &utouch(-10, 'dep');
+ &utouch(-5, 'targ');
+ symlink("../$dirnm/dep", 'sym');
+
+ # Without -L, nothing should happen
+ # With -L, it should update targ
+ run_make_test('targ: sym ; @echo make $@ from $<', '',
+ "#MAKE#: 'targ' is up to date.");
+ run_make_test(undef, '-L', "make targ from sym");
+
+ # Now update dep; in all cases targ should be out of date.
+ &touch('dep');
+ run_make_test(undef, '', "make targ from sym");
+ run_make_test(undef, '-L', "make targ from sym");
+
+ # Now update targ; in all cases targ should be up to date.
+ &touch('targ');
+ run_make_test(undef, '', "#MAKE#: 'targ' is up to date.");
+ run_make_test(undef, '-L', "#MAKE#: 'targ' is up to date.");
+
+ # Add in a new link between sym and dep. Be sure it's newer than targ.
+ sleep(1);
+ rename('dep', 'dep1');
+ symlink('dep1', 'dep');
+
+ # Without -L, nothing should happen
+ # With -L, it should update targ
+ run_make_test(undef, '', "#MAKE#: 'targ' is up to date.");
+ run_make_test(undef, '-L', "make targ from sym");
+
+ rmfiles('targ', 'dep', 'sym', 'dep1');
+
+ # Check handling when symlinks point to non-existent files. Without -L we
+ # should get an error: with -L we should use the timestamp of the symlink.
+
+ symlink("../$dirname/dep", 'sym');
+ run_make_test('targ: sym ; @echo make $@ from $<', '',
+ "#MAKE#: *** No rule to make target 'sym', needed by 'targ'. Stop.", 512);
+
+ run_make_test('targ: sym ; @echo make $@ from $<', '-L',
+ 'make targ from sym');
+
+
+ rmfiles('targ', 'sym');
+
+ 1;
+}
diff --git a/tests/scripts/options/warn-undefined-variables b/tests/scripts/options/warn-undefined-variables
new file mode 100644
index 0000000..ce15507
--- /dev/null
+++ b/tests/scripts/options/warn-undefined-variables
@@ -0,0 +1,25 @@
+# -*-perl-*-
+
+$description = "Test the --warn-undefined-variables option.";
+
+$details = "Verify that warnings are printed for referencing undefined variables.";
+
+# Without --warn-undefined-variables, nothing should happen
+run_make_test('
+EMPTY =
+EREF = $(EMPTY)
+UREF = $(UNDEFINED)
+
+SEREF := $(EREF)
+SUREF := $(UREF)
+
+all: ; @echo ref $(EREF) $(UREF)',
+ '', 'ref');
+
+# With --warn-undefined-variables, it should warn me
+run_make_test(undef, '--warn-undefined-variables',
+ "#MAKEFILE#:7: warning: undefined variable 'UNDEFINED'
+#MAKEFILE#:9: warning: undefined variable 'UNDEFINED'
+ref");
+
+1;
diff --git a/tests/scripts/targets/DEFAULT b/tests/scripts/targets/DEFAULT
new file mode 100644
index 0000000..f3d5148
--- /dev/null
+++ b/tests/scripts/targets/DEFAULT
@@ -0,0 +1,53 @@
+$description = "The following test creates a makefile to override part\n"
+ ."of one Makefile with Another Makefile with the .DEFAULT\n"
+ ."rule.";
+
+$details = "This tests the use of the .DEFAULT special target to say that \n"
+ ."to remake any target that cannot be made fram the information\n"
+ ."in the containing makefile, make should look in another makefile\n"
+ ."This test gives this makefile the target bar which is not \n"
+ ."defined here but passes the target bar on to another makefile\n"
+ ."which does have the target bar defined.\n";
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "foo:\n";
+print MAKEFILE "\t\@echo Executing rule FOO\n\n";
+print MAKEFILE ".DEFAULT:\n";
+print MAKEFILE "\t\@\$(MAKE) -f $makefile2 \$\@ \n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile2");
+
+print MAKEFILE "bar:\n";
+print MAKEFILE "\t\@echo Executing rule BAR\n\n";
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile,'bar',&get_logfile);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "${make_name}[1]: Entering directory '$pwd'\n"
+ . "Executing rule BAR\n"
+ . "${make_name}[1]: Leaving directory '$pwd'\n";
+
+# COMPARE RESULTS
+
+&compare_output($answer,&get_logfile(1));
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/targets/DELETE_ON_ERROR b/tests/scripts/targets/DELETE_ON_ERROR
new file mode 100644
index 0000000..f0d9f9b
--- /dev/null
+++ b/tests/scripts/targets/DELETE_ON_ERROR
@@ -0,0 +1,22 @@
+#! -*-perl-*-
+
+$description = "Test the behaviour of the .DELETE_ON_ERROR target.";
+
+$details = "";
+
+run_make_test('
+.DELETE_ON_ERROR:
+all: ; exit 1 > $@
+',
+ '', "exit 1 > all\n#MAKE#: *** [#MAKEFILE#:3: all] Error 1\n#MAKE#: *** Deleting file 'all'", 512);
+
+run_make_test('
+.DELETE_ON_ERROR:
+all: foo.x ;
+%.x : %.q ; echo > $@
+%.q : ; exit 1 > $@
+',
+ '', "exit 1 > foo.q\n#MAKE#: *** [#MAKEFILE#:5: foo.q] Error 1\n#MAKE#: *** Deleting file 'foo.q'", 512);
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/targets/FORCE b/tests/scripts/targets/FORCE
new file mode 100644
index 0000000..eb8f251
--- /dev/null
+++ b/tests/scripts/targets/FORCE
@@ -0,0 +1,40 @@
+# -*-perl-*-
+
+$description = "The following tests rules without Commands or Dependencies.";
+
+$details = "If the rule ...\n";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE ".IGNORE :\n";
+print MAKEFILE "clean: FORCE\n";
+print MAKEFILE "\t$delete_command clean\n";
+print MAKEFILE "FORCE:\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+
+# Create a file named "clean". This is the same name as the target clean
+# and tricks the target into thinking that it is up to date. (Unless you
+# use the .PHONY target.
+&touch("clean");
+
+$answer = "$delete_command clean\n";
+&run_make_with_options($makefile,"clean",&get_logfile);
+
+&compare_output($answer,&get_logfile(1));
+
+1;
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/targets/INTERMEDIATE b/tests/scripts/targets/INTERMEDIATE
new file mode 100644
index 0000000..2b3021b
--- /dev/null
+++ b/tests/scripts/targets/INTERMEDIATE
@@ -0,0 +1,108 @@
+# -*-perl-*-
+
+$description = "Test the behaviour of the .INTERMEDIATE target.";
+
+$details = "\
+Test the behavior of the .INTERMEDIATE special target.
+Create a makefile where a file would not normally be considered
+intermediate, then specify it as .INTERMEDIATE. Build and ensure it's
+deleted properly. Rebuild to ensure that it's not created if it doesn't
+exist but doesn't need to be built. Change the original and ensure
+that the intermediate file and the ultimate target are both rebuilt, and
+that the intermediate file is again deleted.
+
+Try this with implicit rules and explicit rules: both should work.\n";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+
+.INTERMEDIATE: foo.e bar.e
+
+# Implicit rule test
+%.d : %.e ; cp $< $@
+%.e : %.f ; cp $< $@
+
+foo.d: foo.e
+
+# Explicit rule test
+foo.c: foo.e bar.e; cat $^ > $@
+EOF
+
+close(MAKEFILE);
+
+# TEST #0
+
+&utouch(-20, 'foo.f', 'bar.f');
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "cp foo.f foo.e\ncp foo.e foo.d\nrm foo.e\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #1
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "$make_name: 'foo.d' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #2
+
+&utouch(-10, 'foo.d');
+&touch('foo.f');
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "cp foo.f foo.e\ncp foo.e foo.d\nrm foo.e\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #3
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "cp foo.f foo.e\ncp bar.f bar.e\ncat foo.e bar.e > foo.c\nrm bar.e foo.e\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #4
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "$make_name: 'foo.c' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #5
+
+&utouch(-10, 'foo.c');
+&touch('foo.f');
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "cp foo.f foo.e\ncp bar.f bar.e\ncat foo.e bar.e > foo.c\nrm bar.e foo.e\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #6 -- added for PR/1669: don't remove files mentioned on the cmd line.
+
+&run_make_with_options($makefile,'foo.e',&get_logfile);
+$answer = "cp foo.f foo.e\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('foo.f', 'foo.e', 'foo.d', 'foo.c', 'bar.f', 'bar.e', 'bar.d', 'bar.c');
+
+# TEST #7 -- added for PR/1423
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+
+print MAKEFILE <<'EOF';
+all: foo
+foo.a: ; touch $@
+%: %.a ; touch $@
+.INTERMEDIATE: foo.a
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile2, '-R', &get_logfile);
+$answer = "touch foo.a\ntouch foo\nrm foo.a\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('foo');
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/targets/ONESHELL b/tests/scripts/targets/ONESHELL
new file mode 100644
index 0000000..87713da
--- /dev/null
+++ b/tests/scripts/targets/ONESHELL
@@ -0,0 +1,88 @@
+# -*-perl-*-
+
+$description = "Test the behaviour of the .ONESHELL target.";
+
+$details = "";
+
+# Some shells (*shakes fist at Solaris*) cannot handle multiple flags in
+# separate arguments.
+my $t = `/bin/sh -e -c true 2>/dev/null`;
+my $multi_ok = $? == 0;
+
+# Simple
+
+run_make_test(q!
+.ONESHELL:
+all:
+ a=$$$$
+ [ 0"$$a" -eq "$$$$" ] || echo fail
+!,
+ '', 'a=$$
+[ 0"$a" -eq "$$" ] || echo fail
+');
+
+# Simple but use multi-word SHELLFLAGS
+
+if ($multi_ok) {
+ run_make_test(q!
+.ONESHELL:
+.SHELLFLAGS = -e -c
+all:
+ a=$$$$
+ [ 0"$$a" -eq "$$$$" ] || echo fail
+!,
+ '', 'a=$$
+[ 0"$a" -eq "$$" ] || echo fail
+');
+}
+
+# Again, but this time with inner prefix chars
+
+run_make_test(q!
+.ONESHELL:
+all:
+ a=$$$$
+ @-+ [ 0"$$a" -eq "$$$$" ] || echo fail
+!,
+ '', 'a=$$
+[ 0"$a" -eq "$$" ] || echo fail
+');
+
+# This time with outer prefix chars
+
+run_make_test(q!
+.ONESHELL:
+all:
+ @a=$$$$
+ [ 0"$$a" -eq "$$$$" ] || echo fail
+!,
+ '', '');
+
+
+# This time with outer and inner prefix chars
+
+run_make_test(q!
+.ONESHELL:
+all:
+ @a=$$$$
+ -@ +[ 0"$$a" -eq "$$$$" ] || echo fail
+!,
+ '', '');
+
+
+# Now try using a different interpreter
+
+run_make_test(q!
+.RECIPEPREFIX = >
+.ONESHELL:
+SHELL = #PERL#
+.SHELLFLAGS = -e
+all:
+> @$$a=5
+> +7;
+> @y=qw(a b c);
+>print "a = $$a, y = (@y)\n";
+!,
+ '', "a = 12, y = (a b c)\n");
+
+1;
diff --git a/tests/scripts/targets/PHONY b/tests/scripts/targets/PHONY
new file mode 100644
index 0000000..c8e2110
--- /dev/null
+++ b/tests/scripts/targets/PHONY
@@ -0,0 +1,54 @@
+# -*-perl-*-
+
+$description = "The following tests the use of a PHONY target. It makes\n"
+ ."sure that the rules under a target get executed even if\n"
+ ."a filename of the same name of the target exists in the\n"
+ ."directory.\n";
+
+$details = "This makefile in this test declares the target clean to be a \n"
+ ."PHONY target. We then create a file named \"clean\" in the \n"
+ ."directory. Although this file exists, the rule under the target\n"
+ ."clean should still execute because of it's phony status.";
+
+$example = "EXAMPLE_FILE";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE ".PHONY : clean \n";
+print MAKEFILE "all: \n";
+print MAKEFILE "\t\@echo This makefile did not clean the dir ... good\n";
+print MAKEFILE "clean: \n";
+print MAKEFILE "\t$delete_command $example clean\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch($example);
+
+# Create a file named "clean". This is the same name as the target clean
+# and tricks the target into thinking that it is up to date. (Unless you
+# use the .PHONY target.
+&touch("clean");
+
+$answer = "$delete_command $example clean\n";
+&run_make_with_options($makefile,"clean",&get_logfile);
+
+if (-f $example) {
+ $test_passed = 0;
+}
+
+&compare_output($answer,&get_logfile(1));
+
+1;
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/targets/POSIX b/tests/scripts/targets/POSIX
new file mode 100644
index 0000000..5c3c7f8
--- /dev/null
+++ b/tests/scripts/targets/POSIX
@@ -0,0 +1,56 @@
+# -*-perl-*-
+
+$description = "Test the behaviour of the .POSIX target.";
+
+$details = "";
+
+
+# Ensure turning on .POSIX enables the -e flag for the shell
+# We can't assume the exit value of "false" because on different systems it's
+# different.
+
+my $script = 'false; true';
+my $flags = '-ec';
+my $out = `/bin/sh $flags '$script' 2>&1`;
+my $err = $? >> 8;
+run_make_test(qq!
+.POSIX:
+all: ; \@$script
+!,
+ '', "#MAKE#: *** [#MAKEFILE#:3: all] Error $err\n", 512);
+
+# User settings must override .POSIX
+$flags = '-xc';
+$out = `/bin/sh $flags '$script' 2>&1`;
+run_make_test(qq!
+.SHELLFLAGS = $flags
+.POSIX:
+all: ; \@$script
+!,
+ '', $out);
+
+# Test the default value of various POSIX-specific variables
+my %POSIX = (AR => 'ar', ARFLAGS => '-rv',
+ YACC => 'yacc', YFLAGS => '',
+ LEX => 'lex', LFLAGS => '',
+ LDFLAGS => '',
+ CC => 'c99', CFLAGS => '-O',
+ FC => 'fort77', FFLAGS => '-O 1',
+ GET => 'get', GFLAGS => '',
+ SCCSFLAGS => '', SCCSGETFLAGS => '-s');
+my $make = join('', map { "\t\@echo '$_=\$($_)'\n" } sort keys %POSIX);
+my $r = join('', map { "$_=$POSIX{$_}\n"} sort keys %POSIX);
+run_make_test(qq!
+.POSIX:
+all:
+$make
+!,
+ '', $r);
+
+# Make sure that local settings take precedence
+%extraENV = map { $_ => "xx-$_" } keys %POSIX;
+$r = join('', map { "$_=xx-$_\n"} sort keys %POSIX);
+run_make_test(undef, '', $r);
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/targets/SECONDARY b/tests/scripts/targets/SECONDARY
new file mode 100644
index 0000000..447c275
--- /dev/null
+++ b/tests/scripts/targets/SECONDARY
@@ -0,0 +1,190 @@
+#! -*-perl-*-
+
+$description = "Test the behaviour of the .SECONDARY target.";
+
+$details = "\
+Test the behavior of the .SECONDARY special target.
+Create a makefile where a file would not normally be considered
+intermediate, then specify it as .SECONDARY. Build and note that it's
+not automatically deleted. Delete the file. Rebuild to ensure that
+it's not created if it doesn't exist but doesn't need to be built.
+Change the original and ensure that the secondary file and the ultimate
+target are both rebuilt, and that the secondary file is not deleted.
+
+Try this with implicit rules and explicit rules: both should work.\n";
+
+open(MAKEFILE,"> $makefile");
+
+print MAKEFILE <<'EOF';
+
+.SECONDARY: foo.e
+
+# Implicit rule test
+%.d : %.e ; cp $< $@
+%.e : %.f ; cp $< $@
+
+foo.d: foo.e
+
+# Explicit rule test
+foo.c: foo.e ; cp $< $@
+EOF
+
+close(MAKEFILE);
+
+# TEST #1
+
+&utouch(-20, 'foo.f');
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "cp foo.f foo.e\ncp foo.e foo.d\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #2
+
+unlink('foo.e');
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "$make_name: 'foo.d' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #3
+
+&utouch(-10, 'foo.d');
+&touch('foo.f');
+
+&run_make_with_options($makefile,'foo.d',&get_logfile);
+$answer = "cp foo.f foo.e\ncp foo.e foo.d\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #4
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "cp foo.e foo.c\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #5
+
+unlink('foo.e');
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "$make_name: 'foo.c' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #6
+
+&utouch(-10, 'foo.c');
+&touch('foo.f');
+
+&run_make_with_options($makefile,'foo.c',&get_logfile);
+$answer = "cp foo.f foo.e\ncp foo.e foo.c\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('foo.f', 'foo.e', 'foo.d', 'foo.c');
+
+# TEST #7 -- test the "global" .SECONDARY, with no targets.
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+
+print MAKEFILE <<'EOF';
+.SECONDARY:
+
+final: intermediate
+intermediate: source
+
+final intermediate source:
+ echo $< > $@
+EOF
+
+close(MAKEFILE);
+
+&utouch(-10, 'source');
+touch('final');
+
+&run_make_with_options($makefile2, '', &get_logfile);
+$answer = "$make_name: 'final' is up to date.\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink('source', 'final', 'intermediate');
+
+
+# TEST #8 -- test the "global" .SECONDARY, with .PHONY.
+
+touch('version2');
+run_make_test('
+.PHONY: version
+.SECONDARY:
+version2: version ; @echo GOOD
+all: version2',
+ 'all', 'GOOD');
+
+unlink('version2');
+
+# TEST #9 -- Savannah bug #15919
+# The original fix for this bug caused a new bug, shown here.
+
+touch(qw(1.a 2.a));
+
+run_make_test('
+%.c : %.b ; cp $< $@
+%.b : %.a ; cp $< $@
+all : 1.c 2.c
+2.a: 1.c', '-rR -j',
+'cp 1.a 1.b
+cp 1.b 1.c
+cp 2.a 2.b
+cp 2.b 2.c
+rm 1.b 2.b');
+
+unlink(qw(1.a 2.a 1.c 2.c));
+
+# TEST #10 -- Savannah bug #15919
+touch('test.0');
+run_make_test('
+.SECONDARY : test.1 test.2 test.3
+
+test : test.4
+
+%.4 : %.int %.3 ; touch $@
+
+%.int : %.3 %.2 ; touch $@
+
+%.3 : | %.2 ; touch $@
+
+%.2 : %.1 ; touch $@
+
+%.1 : %.0 ; touch $@', '-rR -j 2',
+'touch test.1
+touch test.2
+touch test.3
+touch test.int
+touch test.4
+rm test.int');
+
+# After a touch of test.0 it should give the same output, except we don't need
+# to rebuild test.3 (order-only)
+sleep(1);
+touch('test.0');
+run_make_test(undef, '-rR -j 2',
+'touch test.1
+touch test.2
+touch test.int
+touch test.4
+rm test.int');
+
+# With both test.0 and test.3 updated it should still build everything except
+# test.3
+sleep(1);
+touch('test.0', 'test.3');
+run_make_test(undef, '-rR -j 2',
+'touch test.1
+touch test.2
+touch test.int
+touch test.4
+rm test.int');
+
+unlink(qw(test.0 test.1 test.2 test.3 test.4));
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/targets/SILENT b/tests/scripts/targets/SILENT
new file mode 100644
index 0000000..4bb0a0f
--- /dev/null
+++ b/tests/scripts/targets/SILENT
@@ -0,0 +1,42 @@
+# -*-perl-*-
+
+$description = "The following tests the special target .SILENT. By simply\n"
+ ."mentioning this as a target, it tells make not to print\n"
+ ."commands before executing them.";
+
+$details = "This test is the same as the clean test except that it should\n"
+ ."not echo its command before deleting the specified file.\n";
+
+$example = "EXAMPLE_FILE";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE ".SILENT : clean\n";
+print MAKEFILE "clean: \n";
+print MAKEFILE "\t$delete_command EXAMPLE_FILE\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch($example);
+
+$answer = "";
+&run_make_with_options($makefile,"clean",&get_logfile,0);
+if (-f $example) {
+ $test_passed = 0;
+}
+&compare_output($answer,&get_logfile(1));
+
+1;
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/targets/clean b/tests/scripts/targets/clean
new file mode 100644
index 0000000..b32c976
--- /dev/null
+++ b/tests/scripts/targets/clean
@@ -0,0 +1,50 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to delete a \n"
+ ."file in the directory. It tests to see if make will \n"
+ ."NOT execute the command unless the rule is given in \n"
+ ."the make command line.";
+
+$example = "EXAMPLE_FILE";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE "all: \n";
+print MAKEFILE "\t\@echo This makefile did not clean the dir... good\n";
+print MAKEFILE "clean: \n";
+print MAKEFILE "\t$delete_command EXAMPLE_FILE\n";
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+&touch($example);
+
+
+&run_make_with_options($makefile,"",&get_logfile,0);
+
+# Create the answer to what should be produced by this Makefile
+$answer = "This makefile did not clean the dir... good\n";
+
+&compare_output($answer,&get_logfile(1)) || &error ("abort");
+
+
+$answer = "$delete_command $example\n";
+&run_make_with_options($makefile,"clean",&get_logfile,0);
+if (-f $example) {
+ $test_passed = 0;
+}
+&compare_output($answer,&get_logfile(1)) || &error ("abort");
+
+1;
+
+
+
+
+
+
+
+
+
diff --git a/tests/scripts/test_template b/tests/scripts/test_template
new file mode 100644
index 0000000..3fd3f95
--- /dev/null
+++ b/tests/scripts/test_template
@@ -0,0 +1,29 @@
+# -*-perl-*-
+
+$description = "<FILL IN SHORT DESCRIPTION HERE>";
+$details = "<FILL IN DETAILS OF HOW YOU TEST WHAT YOU SAY YOU ARE TESTING>";
+
+# Run a make test. See the documentation of run_make_test() in
+# run_make_tests.pl, but briefly the first argument is a string with the
+# contents of a makefile to be tested, the second is a string containing the
+# arguments to be passed to the make invocation, the third is a string
+# containing the expected output. The fourth is the expected exit code for
+# make. If not specified, it's assumed that the make program should succeed
+# (exit with 0).
+
+run_make_test('Your test makefile goes here',
+ 'Arguments to pass to make go here',
+ 'Expected output from the invocation goes here');
+
+# There are various special tokens, options, etc. See the full documentation
+# in run_make_tests.pl.
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/variables/CURDIR b/tests/scripts/variables/CURDIR
new file mode 100644
index 0000000..ee7cacb
--- /dev/null
+++ b/tests/scripts/variables/CURDIR
@@ -0,0 +1,20 @@
+# -*-perl-*-
+
+$description = "This tests the CURDIR varaible.";
+
+$details = "Echo CURDIR both with and without -C. Also ensure overrides work.";
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE "all: ; \@echo \$(CURDIR)\n";
+close(MAKEFILE);
+
+
+# TEST #1
+# -------
+
+&run_make_with_options($makefile,"",&get_logfile);
+$answer = "$pwd\n";
+&compare_output($answer,&get_logfile(1));
+
+
+1;
diff --git a/tests/scripts/variables/DEFAULT_GOAL b/tests/scripts/variables/DEFAULT_GOAL
new file mode 100644
index 0000000..8188ce7
--- /dev/null
+++ b/tests/scripts/variables/DEFAULT_GOAL
@@ -0,0 +1,87 @@
+# -*-perl-*-
+$description = "Test the .DEFAULT_GOAL special variable.";
+
+$details = "";
+
+
+# Test #1: basic logic.
+#
+run_make_test('
+# Basics.
+#
+foo: ; @:
+
+ifneq ($(.DEFAULT_GOAL),foo)
+$(error )
+endif
+
+# Reset to empty.
+#
+.DEFAULT_GOAL :=
+
+bar: ; @:
+
+ifneq ($(.DEFAULT_GOAL),bar)
+$(error )
+endif
+
+# Change to a different goal.
+#
+
+.DEFAULT_GOAL := baz
+
+baz: ; @echo $@
+',
+'',
+'baz');
+
+
+# Test #2: unknown goal.
+#
+run_make_test('
+.DEFAULT_GOAL = foo
+',
+'',
+"#MAKE#: *** No rule to make target 'foo'. Stop.",
+512);
+
+
+# Test #3: more than one goal.
+#
+run_make_test('
+.DEFAULT_GOAL := foo bar
+',
+'',
+'#MAKE#: *** .DEFAULT_GOAL contains more than one target. Stop.',
+512);
+
+
+# Test #4: Savannah bug #12226.
+#
+run_make_test('
+define rule
+foo: ; @echo $$@
+endef
+
+define make-rule
+$(eval $(rule))
+endef
+
+$(call make-rule)
+
+',
+'',
+'foo');
+
+# TEST #5: .DEFAULT_GOAL containing just whitespace (Savannah bug #25697)
+
+run_make_test('
+N =
+.DEFAULT_GOAL = $N $N # Just whitespace
+
+foo: ; @echo "boo"
+',
+ '', "#MAKE#: *** No targets. Stop.\n", 512);
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/variables/GNUMAKEFLAGS b/tests/scripts/variables/GNUMAKEFLAGS
new file mode 100644
index 0000000..6e50794
--- /dev/null
+++ b/tests/scripts/variables/GNUMAKEFLAGS
@@ -0,0 +1,42 @@
+# -*-perl-*-
+
+$description = "Test proper behavior of GNUMAKEFLAGS";
+
+# Accept flags from GNUMAKEFLAGS as well as MAKEFLAGS
+# Results always go in MAKEFLAGS
+
+$extraENV{'GNUMAKEFLAGS'} = '-e -r -R';
+
+run_make_test(q!
+all: ; @echo $(MAKEFLAGS)
+!,
+ '', 'erR');
+
+# Long arguments mean everything is prefixed with "-"
+
+$extraENV{'GNUMAKEFLAGS'} = '--no-print-directory -e -r -R --trace';
+
+run_make_test(q!
+all: ; @echo $(MAKEFLAGS)
+!,
+ '', "#MAKEFILE#:2: target 'all' does not exist
+echo erR --trace --no-print-directory
+erR --trace --no-print-directory");
+
+# Verify that re-exec / recursion doesn't duplicate flags from GNUMAKEFLAGS
+
+unlink('x.mk');
+
+$extraENV{GNUMAKEFLAGS} = '-Itst/bad';
+
+run_make_test(q!
+recurse: ; @echo $@; echo MAKEFLAGS = $$MAKEFLAGS; echo GNUMAKEFLAGS = $$GNUMAKEFLAGS; #MAKEPATH# -f #MAKEFILE# all
+all: ; @echo $@; echo MAKEFLAGS = $$MAKEFLAGS; echo GNUMAKEFLAGS = $$GNUMAKEFLAGS
+-include x.mk
+x.mk: ; @echo $@; echo MAKEFLAGS = $$MAKEFLAGS; echo GNUMAKEFLAGS = $$GNUMAKEFLAGS; echo > $@
+!,
+ "", "x.mk\nMAKEFLAGS = -Itst/bad\nGNUMAKEFLAGS =\nrecurse\nMAKEFLAGS = -Itst/bad\nGNUMAKEFLAGS =\n#MAKE#[1]: Entering directory '#PWD#'\nall\nMAKEFLAGS = w -Itst/bad\nGNUMAKEFLAGS =\n#MAKE#[1]: Leaving directory '#PWD#'\n");
+
+unlink('x.mk');
+
+1;
diff --git a/tests/scripts/variables/INCLUDE_DIRS b/tests/scripts/variables/INCLUDE_DIRS
new file mode 100644
index 0000000..c9662e9
--- /dev/null
+++ b/tests/scripts/variables/INCLUDE_DIRS
@@ -0,0 +1,46 @@
+# -*-perl-*-
+$description = "Test the .INCLUDE_DIRS special variable.";
+
+$details = "";
+
+use Cwd;
+
+$dir = cwd;
+$dir =~ s,.*/([^/]+)$,../$1,;
+
+# Test #1: The content of .INCLUDE_DIRS depends on the platform for which
+# make was built. What we know for sure is that it shouldn't be
+# empty.
+#
+run_make_test('
+ifeq ($(.INCLUDE_DIRS),)
+$(warning .INCLUDE_DIRS is empty)
+endif
+
+.PHONY: all
+all:;@:
+',
+'',
+'');
+
+
+# Test #2: Make sure -I paths end up in .INCLUDE_DIRS.
+#
+run_make_test('
+ifeq ($(dir),)
+$(warning dir is empty)
+endif
+
+ifeq ($(filter $(dir),$(.INCLUDE_DIRS)),)
+$(warning .INCLUDE_DIRS does not contain $(dir))
+endif
+
+.PHONY: all
+all:;@:
+',
+"-I$dir dir=$dir",
+'');
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/scripts/variables/LIBPATTERNS b/tests/scripts/variables/LIBPATTERNS
new file mode 100644
index 0000000..9182954
--- /dev/null
+++ b/tests/scripts/variables/LIBPATTERNS
@@ -0,0 +1,38 @@
+# -*-perl-*-
+
+$description = "Test .LIBPATTERNS special variable.";
+
+$details = "";
+
+# TEST 0: basics
+
+touch('mtest_foo.a');
+
+run_make_test('
+.LIBPATTERNS = mtest_%.a
+all: -lfoo ; @echo "build $@ from $<"
+',
+ '', "build all from mtest_foo.a\n");
+
+# TEST 1: Handle elements that are not patterns.
+
+run_make_test('
+.LIBPATTERNS = mtest_foo.a mtest_%.a
+all: -lfoo ; @echo "build $@ from $<"
+',
+ '', "#MAKE#: .LIBPATTERNS element 'mtest_foo.a' is not a pattern
+build all from mtest_foo.a\n");
+
+# TEST 2: target-specific override
+
+# Uncomment this when we add support, see Savannah bug #25703
+# run_make_test('
+# .LIBPATTERNS = mbad_%.a
+# all: .LIBPATTERNS += mtest_%.a
+# all: -lfoo ; @echo "build $@ from $<"
+# ',
+# '', "build all from mtest_foo.a\n");
+
+unlink('mtest_foo.a');
+
+1;
diff --git a/tests/scripts/variables/MAKE b/tests/scripts/variables/MAKE
new file mode 100644
index 0000000..dc62160
--- /dev/null
+++ b/tests/scripts/variables/MAKE
@@ -0,0 +1,24 @@
+# -*-perl-*-
+
+$description = "Test proper behavior of the MAKE variable";
+
+$details = "DETAILS";
+
+run_make_test(q!
+TMP := $(MAKE)
+MAKE := $(subst X=$(X),,$(MAKE))
+all:
+ @echo $(TMP)
+ $(MAKE) -f #MAKEFILE# foo
+
+foo:
+ @echo $(MAKE)
+!,
+ '',
+ "#MAKEPATH#\n#MAKEPATH# -f #MAKEFILE# foo\n"
+ . "#MAKE#[1]: Entering directory '#PWD#'\n"
+ . "#MAKEPATH#\n#MAKE#[1]: Leaving directory '#PWD#'\n");
+
+rmfiles("foo");
+
+1;
diff --git a/tests/scripts/variables/MAKECMDGOALS b/tests/scripts/variables/MAKECMDGOALS
new file mode 100644
index 0000000..879283b
--- /dev/null
+++ b/tests/scripts/variables/MAKECMDGOALS
@@ -0,0 +1,52 @@
+# -*-perl-*-
+
+$description = "Test the MAKECMDGOALS variable.";
+
+$details = "\
+We construct a makefile with various targets, all of which print out
+\$(MAKECMDGOALS), then call it different ways.";
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE "\
+.DEFAULT all:
+ \@echo \$(MAKECMDGOALS)
+";
+close(MAKEFILE);
+
+# TEST #1
+
+&run_make_with_options($makefile,
+ "",
+ &get_logfile,
+ 0);
+$answer = "\n";
+&compare_output($answer,&get_logfile(1));
+
+# TEST #2
+
+&run_make_with_options($makefile,
+ "all",
+ &get_logfile,
+ 0);
+$answer = "all\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# TEST #3
+
+&run_make_with_options($makefile,
+ "foo bar baz yaz",
+ &get_logfile,
+ 0);
+$answer = "foo bar baz yaz\nfoo bar baz yaz\nfoo bar baz yaz\nfoo bar baz yaz\n";
+&compare_output($answer,&get_logfile(1));
+
+
+# This tells the test driver that the perl test script executed properly.
+1;
+
+
+
+
+
+
diff --git a/tests/scripts/variables/MAKEFILES b/tests/scripts/variables/MAKEFILES
new file mode 100644
index 0000000..b23da8e
--- /dev/null
+++ b/tests/scripts/variables/MAKEFILES
@@ -0,0 +1,53 @@
+# -*-perl-*-
+
+$description = "Test the MAKEFILES variable.";
+
+$makefile2 = &get_tmpfile;
+$makefile3 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE 'all: ; @echo DEFAULT RULE: M2=$(M2) M3=$(M3)', "\n";
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile2");
+print MAKEFILE <<EOF;
+M2 = m2
+NDEF: ; \@echo RULE FROM MAKEFILE 2
+EOF
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile3");
+print MAKEFILE <<EOF;
+M3 = m3
+NDEF3: ; \@echo RULE FROM MAKEFILE 3
+EOF
+close(MAKEFILE);
+
+
+&run_make_with_options($makefile, "MAKEFILES='$makefile2 $makefile3'",
+ &get_logfile);
+$answer = "DEFAULT RULE: M2=m2 M3=m3\n";
+&compare_output($answer,&get_logfile(1));
+
+# TEST 2: Verify that included makefiles don't set the default goal.
+# See Savannah bug #13401.
+
+create_file('xx-inc.mk', '
+include_goal: ; @echo $@
+include xx-ind.mk
+');
+
+create_file('xx-ind.mk', '
+indirect_goal: ; @echo $@
+');
+
+run_make_test(q!
+top: ; @echo $@
+!,
+ 'MAKEFILES=xx-inc.mk', "top\n");
+
+unlink(qw(xx-inc.mk xx-ind.mk));
+
+1;
diff --git a/tests/scripts/variables/MAKEFLAGS b/tests/scripts/variables/MAKEFLAGS
new file mode 100644
index 0000000..0fac74a
--- /dev/null
+++ b/tests/scripts/variables/MAKEFLAGS
@@ -0,0 +1,45 @@
+# -*-perl-*-
+
+$description = "Test proper behavior of MAKEFLAGS";
+
+$details = "DETAILS";
+
+# Normal flags aren't prefixed with "-"
+run_make_test(q!
+all: ; @echo $(MAKEFLAGS)
+!,
+ '-e -r -R', 'erR');
+
+# Long arguments mean everything is prefixed with "-"
+run_make_test(q!
+all: ; @echo $(MAKEFLAGS)
+!,
+ '--no-print-directory -e -r -R --trace', "#MAKEFILE#:2: target 'all' does not exist
+echo erR --trace --no-print-directory
+erR --trace --no-print-directory");
+
+
+# Recursive invocations of make should accumulate MAKEFLAGS values.
+# Savannah bug #2216
+run_make_test(q!
+MSG = Fails
+all:
+ @echo '$@: MAKEFLAGS=$(MAKEFLAGS)'
+ @MSG=Works $(MAKE) -e -f #MAKEFILE# jump
+jump:
+ @echo '$@ $(MSG): MAKEFLAGS=$(MAKEFLAGS)'
+ @$(MAKE) -f #MAKEFILE# print
+print:
+ @echo '$@ $(MSG): MAKEFLAGS=$(MAKEFLAGS)'
+.PHONY: all jump print
+!,
+ '--no-print-directory',
+ 'all: MAKEFLAGS= --no-print-directory
+jump Works: MAKEFLAGS=e --no-print-directory
+print Works: MAKEFLAGS=e --no-print-directory');
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/variables/MAKELEVEL b/tests/scripts/variables/MAKELEVEL
new file mode 100644
index 0000000..96a4e74
--- /dev/null
+++ b/tests/scripts/variables/MAKELEVEL
@@ -0,0 +1,33 @@
+# -*-perl-*-
+
+$description = "The following test creates a makefile to test
+makelevels in Make. It prints \$(MAKELEVEL) and then
+prints the environment variable MAKELEVEL";
+
+open(MAKEFILE,"> $makefile");
+
+# The Contents of the MAKEFILE ...
+
+print MAKEFILE <<EOF;
+all:
+\t\@echo MAKELEVEL is \$(MAKELEVEL)
+\techo \$\$MAKELEVEL
+EOF
+
+# END of Contents of MAKEFILE
+
+close(MAKEFILE);
+
+# RUN MAKE
+
+&run_make_with_options($makefile,"",&get_logfile);
+
+# SET ANSWER
+
+$answer = "MAKELEVEL is 0\necho \$MAKELEVEL\n1\n";
+
+# COMPARE RESULTS
+
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/variables/MAKE_RESTARTS b/tests/scripts/variables/MAKE_RESTARTS
new file mode 100644
index 0000000..01bf55e
--- /dev/null
+++ b/tests/scripts/variables/MAKE_RESTARTS
@@ -0,0 +1,61 @@
+# -*-perl-*-
+
+$description = "Test the MAKE_RESTARTS variable.";
+
+# Test basic capability
+
+run_make_test('
+all: ; @:
+$(info MAKE_RESTARTS=$(MAKE_RESTARTS))
+include foo.x
+foo.x: ; @touch $@
+',
+ '', 'MAKE_RESTARTS=
+MAKE_RESTARTS=1');
+
+rmfiles('foo.x');
+
+# Test multiple restarts
+
+run_make_test('
+all: ; @:
+$(info MAKE_RESTARTS=$(MAKE_RESTARTS))
+include foo.x
+foo.x: ; @echo "include bar.x" > $@
+bar.x: ; @touch $@
+',
+ '', 'MAKE_RESTARTS=
+MAKE_RESTARTS=1
+MAKE_RESTARTS=2');
+
+rmfiles('foo.x', 'bar.x');
+
+# Test multiple restarts and make sure the variable is cleaned up
+
+run_make_test('
+recurse:
+ @echo recurse MAKE_RESTARTS=$$MAKE_RESTARTS
+ @$(MAKE) -f #MAKEFILE# all
+all:
+ @echo all MAKE_RESTARTS=$$MAKE_RESTARTS
+$(info MAKE_RESTARTS=$(MAKE_RESTARTS))
+include foo.x
+foo.x: ; @echo "include bar.x" > $@
+bar.x: ; @touch $@
+',
+ '', "MAKE_RESTARTS=
+MAKE_RESTARTS=1
+MAKE_RESTARTS=2
+recurse MAKE_RESTARTS=
+#MAKE#[1]: Entering directory '#PWD#'
+MAKE_RESTARTS=
+all MAKE_RESTARTS=
+#MAKE#[1]: Leaving directory '#PWD#'");
+
+rmfiles('foo.x', 'bar.x');
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/variables/MFILE_LIST b/tests/scripts/variables/MFILE_LIST
new file mode 100644
index 0000000..076e42d
--- /dev/null
+++ b/tests/scripts/variables/MFILE_LIST
@@ -0,0 +1,30 @@
+# -*-perl-*-
+
+$description = "Test the MAKEFILE_LIST variable.";
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE,"> $makefile");
+print MAKEFILE <<EOF;
+m1 := \$(MAKEFILE_LIST)
+include $makefile2
+m3 := \$(MAKEFILE_LIST)
+
+all:
+\t\@echo \$(m1)
+\t\@echo \$(m2)
+\t\@echo \$(m3)
+EOF
+close(MAKEFILE);
+
+
+open(MAKEFILE,"> $makefile2");
+print MAKEFILE "m2 := \$(MAKEFILE_LIST)\n";
+close(MAKEFILE);
+
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "$makefile\n$makefile $makefile2\n$makefile $makefile2\n";
+&compare_output($answer,&get_logfile(1));
+
+1;
diff --git a/tests/scripts/variables/SHELL b/tests/scripts/variables/SHELL
new file mode 100644
index 0000000..edba7b6
--- /dev/null
+++ b/tests/scripts/variables/SHELL
@@ -0,0 +1,102 @@
+# -*-perl-*-
+
+$description = "Test proper handling of SHELL.";
+
+# Find the default value when SHELL is not set. On UNIX it will be /bin/sh,
+# but on other platforms who knows?
+resetENV();
+delete $ENV{SHELL};
+$mshell = `echo 'all:;\@echo \$(SHELL)' | $make_path -f-`;
+chop $mshell;
+
+# According to POSIX, the value of SHELL in the environment has no impact on
+# the value in the makefile.
+# Note %extraENV takes precedence over the default value for the shell.
+
+$extraENV{SHELL} = '/dev/null';
+run_make_test('all:;@echo "$(SHELL)"', '', $mshell);
+
+# According to POSIX, any value of SHELL set in the makefile should _NOT_ be
+# exported to the subshell! I wanted to set SHELL to be $^X (perl) in the
+# makefile, but make runs $(SHELL) -c 'commandline' and that doesn't work at
+# all when $(SHELL) is perl :-/. So, we just add an extra initial /./ which
+# works well on UNIX and seems to work OK on at least some non-UNIX systems.
+
+$extraENV{SHELL} = $mshell;
+
+run_make_test("SHELL := /./$mshell\n".'
+all:;@echo "$(SHELL) $$SHELL"
+', '', "/./$mshell $mshell");
+
+# As a GNU make extension, if make's SHELL variable is explicitly exported,
+# then we really _DO_ export it.
+
+$extraENV{SHELL} = $mshell;
+
+run_make_test("export SHELL := /./$mshell\n".'
+all:;@echo "$(SHELL) $$SHELL"
+', '', "/./$mshell /./$mshell");
+
+
+# Test out setting of SHELL, both exported and not, as a target-specific
+# variable.
+
+$extraENV{SHELL} = $mshell;
+
+run_make_test("all: SHELL := /./$mshell\n".'
+all:;@echo "$(SHELL) $$SHELL"
+', '', "/./$mshell $mshell");
+
+$extraENV{SHELL} = $mshell;
+
+run_make_test("
+SHELL := /././$mshell
+one: two
+two: export SHELL := /./$mshell\n".'
+one two:;@echo "$@: $(SHELL) $$SHELL"
+', '', "two: /./$mshell /./$mshell\none: /././$mshell $mshell\n");
+
+# Test .SHELLFLAGS
+
+# We don't know the output here: on Solaris for example, every line printed
+# by the shell in -x mode has a trailing space (!!)
+my $script = 'true; true';
+my $flags = '-xc';
+my $out = `/bin/sh $flags '$script' 2>&1`;
+
+run_make_test(qq!
+.SHELLFLAGS = $flags
+all: ; \@$script
+!,
+ '', $out);
+
+# Do it again but add spaces to SHELLFLAGS
+
+# Some shells (*shakes fist at Solaris*) cannot handle multiple flags in
+# separate arguments.
+my $t = `/bin/sh -e -c true 2>/dev/null`;
+my $multi_ok = $? == 0;
+
+if ($multi_ok) {
+ $flags = '-x -c';
+ run_make_test(qq!
+.SHELLFLAGS = $flags
+all: ; \@$script
+!,
+ '', $out);
+}
+
+# We can't just use "false" because on different systems it provides a
+# different exit code--once again Solaris: false exits with 255 not 1
+$script = 'true; false; true';
+$flags = '-xec';
+$out = `/bin/sh $flags '$script' 2>&1`;
+my $err = $? >> 8;
+
+run_make_test(qq!
+.SHELLFLAGS = $flags
+all: ; \@$script
+!,
+ '', "$out#MAKE#: *** [#MAKEFILE#:3: all] Error $err\n", 512);
+
+1;
diff --git a/tests/scripts/variables/automatic b/tests/scripts/variables/automatic
new file mode 100644
index 0000000..33c482d
--- /dev/null
+++ b/tests/scripts/variables/automatic
@@ -0,0 +1,122 @@
+# -*-perl-*-
+
+$description = "Test automatic variable setting.";
+
+$details = "";
+
+use Cwd;
+
+$dir = cwd;
+$dir =~ s,.*/([^/]+)$,../$1,;
+
+open(MAKEFILE, "> $makefile");
+print MAKEFILE "dir = $dir\n";
+print MAKEFILE <<'EOF';
+.SUFFIXES:
+.SUFFIXES: .x .y .z
+$(dir)/foo.x : baz.z $(dir)/bar.y baz.z
+ @echo '$$@ = $@, $$(@D) = $(@D), $$(@F) = $(@F)'
+ @echo '$$* = $*, $$(*D) = $(*D), $$(*F) = $(*F)'
+ @echo '$$< = $<, $$(<D) = $(<D), $$(<F) = $(<F)'
+ @echo '$$^ = $^, $$(^D) = $(^D), $$(^F) = $(^F)'
+ @echo '$$+ = $+, $$(+D) = $(+D), $$(+F) = $(+F)'
+ @echo '$$? = $?, $$(?D) = $(?D), $$(?F) = $(?F)'
+ touch $@
+
+$(dir)/bar.y baz.z : ; touch $@
+EOF
+close(MAKEFILE);
+
+# TEST #0 -- simple test
+# -------
+
+# Touch these into the past
+&utouch(-10, qw(foo.x baz.z));
+
+&run_make_with_options($makefile, "", &get_logfile);
+$answer = "touch $dir/bar.y
+\$\@ = $dir/foo.x, \$(\@D) = $dir, \$(\@F) = foo.x
+\$* = $dir/foo, \$(*D) = $dir, \$(*F) = foo
+\$< = baz.z, \$(<D) = ., \$(<F) = baz.z
+\$^ = baz.z $dir/bar.y, \$(^D) = . $dir, \$(^F) = baz.z bar.y
+\$+ = baz.z $dir/bar.y baz.z, \$(+D) = . $dir ., \$(+F) = baz.z bar.y baz.z
+\$? = $dir/bar.y, \$(?D) = $dir, \$(?F) = bar.y
+touch $dir/foo.x\n";
+&compare_output($answer, &get_logfile(1));
+
+unlink(qw(foo.x bar.y baz.z));
+
+# TEST #1 -- test the SysV emulation of $$@ etc.
+# -------
+
+$makefile2 = &get_tmpfile;
+
+open(MAKEFILE, "> $makefile2");
+print MAKEFILE "dir = $dir\n";
+print MAKEFILE <<'EOF';
+.SECONDEXPANSION:
+.SUFFIXES:
+.DEFAULT: ; @echo '$@'
+
+$(dir)/foo $(dir)/bar: $@.x $$@.x $$$@.x $$$$@.x $$(@D).x $$(@F).x
+
+$(dir)/x.z $(dir)/y.z: $(dir)/%.z : $@.% $$@.% $$$@.% $$$$@.% $$(@D).% $$(@F).%
+
+$(dir)/biz: $$(@).x $${@}.x $${@D}.x $${@F}.x
+EOF
+
+close(MAKEFILE);
+
+&run_make_with_options($makefile2, "$dir/foo $dir/bar", &get_logfile);
+$answer = ".x\n$dir/foo.x\nx\n\$@.x\n$dir.x\nfoo.x\n$dir/bar.x\nbar.x\n";
+&compare_output($answer, &get_logfile(1));
+
+&run_make_with_options($makefile2, "$dir/x.z $dir/y.z", &get_logfile);
+$answer = ".x\n$dir/x.z.x\nx\n\$@.x\n$dir.x\nx.z.x\n.y\n$dir/y.z.y\n\y\n\$@.y\n$dir.y\ny.z.y\n";
+&compare_output($answer, &get_logfile(1));
+
+&run_make_with_options($makefile2, "$dir/biz", &get_logfile);
+$answer = "$dir/biz.x\n$dir.x\nbiz.x\n";
+&compare_output($answer, &get_logfile(1));
+
+# TEST #2 -- test for Savannah bug #12320.
+#
+run_make_test('
+.SUFFIXES: .b .src
+
+mbr.b: mbr.src
+ @echo $*
+
+mbr.src: ; @:',
+ '',
+ 'mbr');
+
+# TEST #3 -- test for Savannah bug #8154
+# Make sure that nonexistent prerequisites are listed in $?, since they are
+# considered reasons for the target to be rebuilt.
+#
+# See also Savannah bugs #16002 and #16051.
+
+touch('foo');
+
+run_make_test('
+foo: bar ; @echo "\$$? = $?"
+bar: ;',
+ '',
+ '$? = bar');
+
+unlink('foo');
+
+# TEST #4: ensure prereq ordering is correct when the commmand target has none
+# See Savannah bug #21198
+
+run_make_test('
+all : A B
+all : ; @echo $@ -- $^ -- $<
+all : C D
+all : E F
+A B C D E F G H : ; @:
+',
+ '', "all -- A B C D E F -- A\n");
+
+1;
diff --git a/tests/scripts/variables/define b/tests/scripts/variables/define
new file mode 100644
index 0000000..7324cbc
--- /dev/null
+++ b/tests/scripts/variables/define
@@ -0,0 +1,282 @@
+# -*-perl-*-
+
+$description = "Test define/endef variable assignments.";
+
+$details = "";
+
+# TEST 0: old-style basic define/endef
+
+run_make_test('
+define multi
+@echo hi
+echo there
+endef
+
+all: ; $(multi)
+',
+ '', "hi\necho there\nthere\n");
+
+# TEST 1: Various new-style define/endef
+
+run_make_test('
+FOO = foo
+
+define multi =
+echo hi
+@echo $(FOO)
+endef # this is the end
+
+define simple :=
+@echo $(FOO)
+endef
+
+define posix ::=
+@echo $(FOO)
+endef
+
+append = @echo a
+
+define append +=
+
+@echo b
+endef
+
+define cond ?= # this is a conditional
+@echo first
+endef
+
+define cond ?=
+@echo second
+endef
+
+FOO = there
+
+all: ; $(multi)
+ $(simple)
+ $(posix)
+ $(append)
+ $(cond)
+',
+ '', "echo hi\nhi\nthere\nfoo\nfoo\na\nb\nfirst\n");
+
+# TEST 1a: Various new-style define/endef, with no spaces
+
+run_make_test('
+FOO = foo
+
+define multi=
+echo hi
+@echo $(FOO)
+endef # this is the end
+
+define simple:=
+@echo $(FOO)
+endef
+
+define posix::=
+@echo $(FOO)
+endef
+
+append = @echo a
+
+define append+=
+
+@echo b
+endef
+
+define cond?= # this is a conditional
+@echo first
+endef
+
+define cond?=
+@echo second
+endef
+
+FOO = there
+
+all: ; $(multi)
+ $(simple)
+ $(posix)
+ $(append)
+ $(cond)
+',
+ '', "echo hi\nhi\nthere\nfoo\nfoo\na\nb\nfirst\n");
+
+# TEST 2: define in true section of conditional (containing conditional)
+
+run_make_test('
+FOO = foo
+NAME = def
+def =
+ifdef BOGUS
+ define $(subst e,e,$(NAME)) =
+ ifeq (1,1)
+ FOO = bar
+ endif
+ endef
+endif
+
+$(eval $(def))
+all: ; @echo $(FOO)
+',
+ 'BOGUS=1', "bar\n");
+
+# TEST 3: define in false section of conditional (containing conditional)
+
+run_make_test(undef, '', "foo\n");
+
+# TEST 4: nested define (supported?)
+
+run_make_test('
+define outer
+ define inner
+ A = B
+ endef
+endef
+
+$(eval $(outer))
+
+outer: ; @echo $(inner)
+',
+ '', "A = B\n");
+
+# TEST 5: NEGATIVE: Missing variable name
+
+run_make_test('
+NAME =
+define $(NAME) =
+ouch
+endef
+all: ; @echo ouch
+',
+ '', "#MAKEFILE#:3: *** empty variable name. Stop.\n", 512);
+
+# TEST 6: NEGATIVE: extra text after define
+
+run_make_test('
+NAME =
+define NAME = $(NAME)
+ouch
+endef
+all: ; @echo ok
+',
+ '', "#MAKEFILE#:3: extraneous text after 'define' directive\nok\n");
+
+# TEST 7: NEGATIVE: extra text after endef
+
+run_make_test('
+NAME =
+define NAME =
+ouch
+endef $(NAME)
+all: ; @echo ok
+',
+ '', "#MAKEFILE#:5: extraneous text after 'endef' directive\nok\n");
+
+# TEST 8: NEGATIVE: missing endef
+
+run_make_test('
+NAME =
+all: ; @echo ok
+define NAME =
+ouch
+endef$(NAME)
+',
+ '', "#MAKEFILE#:4: *** missing 'endef', unterminated 'define'. Stop.\n", 512);
+
+# -------------------------
+# Make sure that prefix characters apply properly to define/endef values.
+#
+# There's a bit of oddness here if you try to use a variable to hold the
+# prefix character for a define. Even though something like this:
+#
+# define foo
+# echo bar
+# endef
+#
+# all: ; $(V)$(foo)
+#
+# (where V=@) can be seen by the user to be obviously different than this:
+#
+# define foo
+# $(V)echo bar
+# endef
+#
+# all: ; $(foo)
+#
+# and the user thinks it should behave the same as when the "@" is literal
+# instead of in a variable, that can't happen because by the time make
+# expands the variables for the command line and sees it begins with a "@" it
+# can't know anymore whether the prefix character came before the variable
+# reference or was included in the first line of the variable reference.
+
+# TEST #5
+# -------
+
+run_make_test('
+define FOO
+$(V1)echo hello
+$(V2)echo world
+endef
+all: ; @$(FOO)
+', '', 'hello
+world');
+
+# TEST #6
+# -------
+
+run_make_test(undef, 'V1=@ V2=@', 'hello
+world');
+
+# TEST #7
+# -------
+
+run_make_test('
+define FOO
+$(V1)echo hello
+$(V2)echo world
+endef
+all: ; $(FOO)
+', 'V1=@', 'hello
+echo world
+world');
+
+# TEST #8
+# -------
+
+run_make_test(undef, 'V2=@', 'echo hello
+hello
+world');
+
+# TEST #9
+# -------
+
+run_make_test(undef, 'V1=@ V2=@', 'hello
+world');
+
+# TEST #10
+# -------
+# Test the basics; a "@" internally to the variable applies to only one line.
+# A "@" before the variable applies to the entire variable.
+
+run_make_test('
+define FOO
+@echo hello
+echo world
+endef
+define BAR
+echo hello
+echo world
+endef
+
+all: foo bar
+foo: ; $(FOO)
+bar: ; @$(BAR)
+', '', 'hello
+echo world
+world
+hello
+world
+');
+
+1;
diff --git a/tests/scripts/variables/flavors b/tests/scripts/variables/flavors
new file mode 100644
index 0000000..ba133ea
--- /dev/null
+++ b/tests/scripts/variables/flavors
@@ -0,0 +1,96 @@
+# -*-perl-*-
+
+$description = "Test various flavors of make variable setting.";
+
+$details = "";
+
+# TEST 0: Recursive
+
+run_make_test('
+ugh = Goodbye
+foo = $(bar)
+bar = ${ugh}
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Hello\n");
+
+# TEST 1: Simple
+
+run_make_test('
+bar = Goodbye
+foo := $(bar)
+bar = ${ugh}
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Goodbye\n");
+
+# TEST 2: Append to recursive
+
+run_make_test('
+foo = Hello
+ugh = Goodbye
+foo += $(bar)
+bar = ${ugh}
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Hello Hello\n");
+
+# TEST 3: Append to simple
+
+run_make_test('
+foo := Hello
+ugh = Goodbye
+bar = ${ugh}
+foo += $(bar)
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Hello Goodbye\n");
+
+# TEST 4: Conditional pre-set
+
+run_make_test('
+foo = Hello
+ugh = Goodbye
+bar = ${ugh}
+foo ?= $(bar)
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Hello\n");
+
+# TEST 5: Conditional unset
+
+run_make_test('
+ugh = Goodbye
+bar = ${ugh}
+foo ?= $(bar)
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Hello\n");
+
+# TEST 6: Simple using POSIX syntax
+run_make_test('
+bar = Goodbye
+foo ::= $(bar)
+bar = ${ugh}
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Goodbye\n");
+
+# TEST 7: POSIX syntax no spaces
+run_make_test('
+bar = Goodbye
+foo::=$(bar)
+bar = ${ugh}
+ugh = Hello
+all: ; @echo $(foo)
+',
+ '', "Goodbye\n");
+
+1;
diff --git a/tests/scripts/variables/negative b/tests/scripts/variables/negative
new file mode 100644
index 0000000..16a72b8
--- /dev/null
+++ b/tests/scripts/variables/negative
@@ -0,0 +1,46 @@
+# -*-perl-*-
+
+$description = "Run some negative tests (things that should fail).";
+
+# TEST #0
+# Check that non-terminated variable references are detected (and
+# reported using the best filename/lineno info
+run_make_test('
+foo = bar
+x = $(foo
+y = $x
+
+all: ; @echo $y
+',
+ '', '#MAKEFILE#:3: *** unterminated variable reference. Stop.',
+ 512);
+
+# TEST #1
+# Bogus variable value passed on the command line.
+run_make_test(undef,
+ 'x=\$\(other',
+ '#MAKEFILE#:4: *** unterminated variable reference. Stop.',
+ 512);
+
+# TEST #2
+# Again, but this time while reading the makefile.
+run_make_test('
+foo = bar
+x = $(foo
+y = $x
+
+z := $y
+
+all: ; @echo $y
+',
+ '', '#MAKEFILE#:3: *** unterminated variable reference. Stop.',
+ 512);
+
+# TEST #3
+# Bogus variable value passed on the command line.
+run_make_test(undef,
+ 'x=\$\(other',
+ '#MAKEFILE#:4: *** unterminated variable reference. Stop.',
+ 512);
+
+1;
diff --git a/tests/scripts/variables/private b/tests/scripts/variables/private
new file mode 100644
index 0000000..8967ffb
--- /dev/null
+++ b/tests/scripts/variables/private
@@ -0,0 +1,122 @@
+# -*-perl-*-
+
+$description = "Test 'private' variables.";
+
+$details = "";
+
+# 1: Simple verification that private variables are not inherited
+&run_make_test('
+a:
+F = g
+a: F = a
+b: private F = b
+
+a b c: ; @echo $@: F=$(F)
+a: b
+b: c
+',
+ '', "c: F=a\nb: F=b\na: F=a\n");
+
+# 2: Again, but this time we start with "b" so "a"'s variable is not in scope
+&run_make_test(undef, 'b', "c: F=g\nb: F=b\n");
+
+# 3: Verification with pattern-specific variables
+&run_make_test('
+t.a:
+
+F1 = g
+F2 = g
+%.a: private F1 = a
+%.a: F2 = a
+
+t.a t.b: ; @echo $@: F1=$(F1) / F2=$(F2)
+t.a: t.b
+',
+ '', "t.b: F1=g / F2=a\nt.a: F1=a / F2=a\n");
+
+# 4: Test private global variables
+&run_make_test('
+a:
+private F = g
+G := $(F)
+a:
+b: F = b
+
+a b: ; @echo $@: F=$(F) / G=$(G)
+a: b
+',
+ '', "b: F=b / G=g\na: F= / G=g\n");
+
+# 5: Multiple conditions on the same variable. Test export.
+delete $ENV{'_X'};
+&run_make_test('
+_X = x
+a: export override private _X = a
+a: ; @echo _X=$(_X) / _X=$$_X
+',
+ '', "_X=a / _X=a");
+
+# 6: Test override.
+&run_make_test(undef, '_X=c', "_X=a / _X=a\n");
+
+# 7: Ensure keywords still work as targets
+&run_make_test('
+a: export override private foo bar
+foo bar export override private: ; @echo $@
+',
+ '', "export\noverride\nprivate\nfoo\nbar\n");
+
+# 8: Ensure keywords still work as variables
+&run_make_test('
+private = g
+a: private = a
+a: b
+a b: ; @echo $@=$(private)
+',
+ '', "b=a\na=a\n");
+
+# 9: make sure private suppresses inheritance
+run_make_test(q!
+DEFS = FOO
+all: bar1
+bar1: private DEFS += 1
+bar3: private DEFS += 3
+bar1: bar2
+bar2: bar3
+bar1 bar2 bar3: ; @echo '$@: $(DEFS)'
+!,
+ '', "bar3: FOO 3\nbar2: FOO\nbar1: FOO 1\n");
+
+# 10: Test append with pattern-specific variables and private
+
+run_make_test(q!
+IA = global
+PA = global
+PS = global
+S = global
+PS = global
+SV = global
+b%: IA += b%
+b%: private PA += b%
+b%: private PS = b%
+bar: all
+bar: IA += bar
+bar: private PA += bar
+bar: private PS = bar
+a%: IA += a%
+a%: private PA += a%
+a%: private PS = a%
+all: IA += all
+all: private PA += all
+all: private PS = all
+
+bar all: ; @echo '$@: IA=$(IA)'; echo '$@: PA=$(PA)'; echo '$@: PS=$(PS)'
+!,
+ '', "all: IA=global b% bar a% all
+all: PA=global a% all
+all: PS=all
+bar: IA=global b% bar
+bar: PA=global b% bar
+bar: PS=bar\n");
+
+1;
diff --git a/tests/scripts/variables/special b/tests/scripts/variables/special
new file mode 100644
index 0000000..68f3128
--- /dev/null
+++ b/tests/scripts/variables/special
@@ -0,0 +1,149 @@
+# -*-perl-*-
+
+$description = "Test special GNU make variables.";
+
+$details = "";
+
+&run_make_test('
+
+X1 := $(sort $(filter FOO BAR,$(.VARIABLES)))
+
+FOO := foo
+
+X2 := $(sort $(filter FOO BAR,$(.VARIABLES)))
+
+BAR := bar
+
+all: ; @echo X1 = $(X1); echo X2 = $(X2); echo LAST = $(sort $(filter FOO BAR,$(.VARIABLES)))
+',
+ '', "X1 =\nX2 = FOO\nLAST = BAR FOO\n");
+
+# SV 45728: Test that undefining a variable is reflected properly
+
+&run_make_test('
+FOO := foo
+BAR := bar
+$(info one: $(sort $(filter FOO BAR BAZ,$(.VARIABLES))))
+undefine BAR
+BAZ := baz
+$(info two: $(sort $(filter FOO BAR BAZ,$(.VARIABLES))))
+all:;@:
+',
+ '', "one: BAR FOO\ntwo: BAZ FOO\n");
+
+# $makefile2 = &get_tmpfile;
+# open(MAKEFILE, "> $makefile2");
+
+# print MAKEFILE <<'EOF';
+
+# X1 := $(sort $(.TARGETS))
+
+# all: foo
+# @echo X1 = $(X1)
+# @echo X2 = $(X2)
+# @echo LAST = $(sort $(.TARGETS))
+
+# X2 := $(sort $(.TARGETS))
+
+# foo:
+
+# EOF
+
+# close(MAKEFILE);
+
+# # TEST #2
+# # -------
+
+# &run_make_with_options($makefile2, "", &get_logfile);
+# $answer = "X1 =\nX2 = all\nLAST = all foo\n";
+# &compare_output($answer, &get_logfile(1));
+
+# Test the .RECIPEPREFIX variable
+&run_make_test('
+define foo
+: foo-one\
+foo-two
+: foo-three
+ : foo-four
+endef
+
+orig: ; : orig-one
+ : orig-two \
+orig-three \
+ orig-four \
+ orig-five \\\\
+ : orig-six
+ $(foo)
+
+.RECIPEPREFIX = >
+test: ; : test-one
+>: test-two \
+test-three \
+>test-four \
+> test-five \\\\
+>: test-six
+>$(foo)
+
+.RECIPEPREFIX =
+reset: ; : reset-one
+ : reset-two \
+reset-three \
+ reset-four \
+ reset-five \\\\
+ : reset-six
+ $(foo)
+',
+ 'orig test reset',
+ ': orig-one
+: orig-two \
+orig-three \
+orig-four \
+ orig-five \\\\
+: orig-six
+: foo-one foo-two
+: foo-three
+: foo-four
+: test-one
+: test-two \
+test-three \
+test-four \
+ test-five \\\\
+: test-six
+: foo-one foo-two
+: foo-three
+: foo-four
+: reset-one
+: reset-two \
+reset-three \
+reset-four \
+ reset-five \\\\
+: reset-six
+: foo-one foo-two
+: foo-three
+: foo-four');
+
+# Test that the "did you mean TAB" message is printed properly
+
+run_make_test(q!
+$x.
+!,
+ '', '#MAKEFILE#:2: *** missing separator. Stop.', 512);
+
+run_make_test(q!
+foo:
+ bar
+!,
+ '', '#MAKEFILE#:3: *** missing separator (did you mean TAB instead of 8 spaces?). Stop.', 512);
+
+run_make_test(q!
+.RECIPEPREFIX = :
+foo:
+ bar
+!,
+ '', '#MAKEFILE#:4: *** missing separator. Stop.', 512);
+
+1;
+
+### Local Variables:
+### eval: (setq whitespace-action (delq 'auto-cleanup whitespace-action))
+### End:
diff --git a/tests/scripts/variables/undefine b/tests/scripts/variables/undefine
new file mode 100644
index 0000000..38707b8
--- /dev/null
+++ b/tests/scripts/variables/undefine
@@ -0,0 +1,73 @@
+# -*-perl-*-
+
+$description = "Test variable undefine.";
+
+$details = "";
+
+# TEST 0: basic undefine functionality
+
+run_make_test('
+a = a
+b := b
+define c
+c
+endef
+
+$(info $(flavor a) $(flavor b) $(flavor c))
+
+n := b
+
+undefine a
+undefine $n
+undefine c
+
+$(info $(flavor a) $(flavor b) $(flavor c))
+
+
+all: ;@:
+',
+'', "recursive simple recursive\nundefined undefined undefined");
+
+
+# TEST 1: override
+
+run_make_test('
+undefine a
+override undefine b
+
+$(info $(flavor a) $(flavor b))
+
+
+all: ;@:
+',
+'a=a b=b', "recursive undefined");
+
+1;
+
+# TEST 2: undefine in eval (make sure we undefine from the global var set)
+
+run_make_test('
+define undef
+$(eval undefine $$1)
+endef
+
+a := a
+$(call undef,a)
+$(info $(flavor a))
+
+
+all: ;@:
+',
+'', "undefined");
+
+
+# TEST 3: Missing variable name
+
+run_make_test('
+a =
+undefine $a
+all: ;@echo ouch
+',
+'', "#MAKEFILE#:3: *** empty variable name. Stop.\n", 512);
+
+1;
diff --git a/tests/scripts/vms/library b/tests/scripts/vms/library
new file mode 100644
index 0000000..9a64951
--- /dev/null
+++ b/tests/scripts/vms/library
@@ -0,0 +1,73 @@
+# -*-mode: perl-*-
+
+$description = "Test GNU make's VMS Library management features.";
+
+$details = "\
+This only works on VMS systems.";
+
+return -1 if $osname ne 'VMS';
+
+# Help library
+$mk_string = "help : help.hlb(file1.hlp)\n\n" .
+"file1.hlp :\n" .
+"\t\@pipe open/write xxx file1.hlp ; write xxx \"1 help\" ; close xxx\n";
+
+my $answer = "library /replace help.hlb file1.hlp";
+
+run_make_test($mk_string,
+ '', $answer);
+
+unlink('help.hlb');
+unlink('file1.hlp');
+
+#Text library
+$mk_string = "text : text.tlb(file1.txt)\n\n" .
+"file1.txt :\n" .
+"\t\@pipe open/write xxx file1.txt ; write xxx \"text file\" ; close xxx\n";
+
+my $answer = "library /replace text.tlb file1.txt";
+
+run_make_test($mk_string,
+ '', $answer);
+
+unlink('text.tlb');
+unlink('file1.txt');
+
+
+#Macro library
+$mk_string = "macro : macro.mlb(file1.mar)\n\n" .
+"file1.mar :\n" .
+"\t\pipe open/write xxx file1.mar ; " .
+"write xxx \".macro a b\" ; write xxx \".endm\" ; close xxx\n";
+
+my $answer = "library /replace macro.mlb file1.mar";
+
+run_make_test($mk_string,
+ '', $answer);
+
+unlink('macro.mlb');
+unlink('file1.mar');
+
+$mk_string =
+"all:imagelib.olb(file2.exe)\n" .
+"file2.exe : file2.obj file2.opt\n" .
+"\t\@link /share=\$\@ \$\*,\$\*/opt\n\n" .
+"file2.opt :\n" .
+"\t\@pipe open/write xxx file2.opt ; " .
+"write xxx \"CASE_SENSITIVE=YES\" ; close xxx\n" .
+"file2.c :\n" .
+"\t\@pipe open/write xxx file2.c ; write xxx \"file2(){}\" ; close xxx\n";
+
+my $answer = "library /replace imagelib.olb file2.exe";
+
+run_make_test($mk_string,
+ '', $answer);
+
+unlink('imagelib.olb');
+unlink('file2.c');
+unlink('file2.obj');
+unlink('file2.exe');
+unlink('file2.opt');
+
+# This tells the test driver that the perl test script executed properly.
+1;
diff --git a/tests/test_driver.pl b/tests/test_driver.pl
new file mode 100644
index 0000000..e6cd9f9
--- /dev/null
+++ b/tests/test_driver.pl
@@ -0,0 +1,1474 @@
+#!/usr/bin/perl
+# -*-perl-*-
+#
+# Modification history:
+# Written 91-12-02 through 92-01-01 by Stephen McGee.
+# Modified 92-02-11 through 92-02-22 by Chris Arthur to further generalize.
+#
+# Copyright (C) 1991-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+# Test driver routines used by a number of test suites, including
+# those for SCS, make, roll_dir, and scan_deps (?).
+#
+# this routine controls the whole mess; each test suite sets up a few
+# variables and then calls &toplevel, which does all the real work.
+
+# $Id$
+
+
+# The number of test categories we've run
+$categories_run = 0;
+# The number of test categroies that have passed
+$categories_passed = 0;
+# The total number of individual tests that have been run
+$total_tests_run = 0;
+# The total number of individual tests that have passed
+$total_tests_passed = 0;
+# The number of tests in this category that have been run
+$tests_run = 0;
+# The number of tests in this category that have passed
+$tests_passed = 0;
+
+
+# Yeesh. This whole test environment is such a hack!
+$test_passed = 1;
+
+# Timeout in seconds. If the test takes longer than this we'll fail it.
+$test_timeout = 5;
+$test_timeout = 10 if $^O eq 'VMS';
+
+# Path to Perl
+$perl_name = $^X;
+
+# %makeENV is the cleaned-out environment.
+%makeENV = ();
+
+# %extraENV are any extra environment variables the tests might want to set.
+# These are RESET AFTER EVERY TEST!
+%extraENV = ();
+
+sub vms_get_process_logicals {
+ # Sorry for the long note here, but to keep this test running on
+ # VMS, it is needed to be understood.
+ #
+ # Perl on VMS by default maps the %ENV array to the system wide logical
+ # name table.
+ #
+ # This is a very large dynamically changing table.
+ # On Linux, this would be the equivalent of a table that contained
+ # every mount point, temporary pipe, and symbolic link on every
+ # file system. You normally do not have permission to clear or replace it,
+ # and if you did, the results would be catastrophic.
+ #
+ # On VMS, added/changed %ENV items show up in the process logical
+ # name table. So to track changes, a copy of it needs to be captured.
+
+ my $raw_output = `show log/process/access_mode=supervisor`;
+ my @raw_output_lines = split('\n',$raw_output);
+ my %log_hash;
+ foreach my $line (@raw_output_lines) {
+ if ($line =~ /^\s+"([A-Za-z\$_]+)"\s+=\s+"(.+)"$/) {
+ $log_hash{$1} = $2;
+ }
+ }
+ return \%log_hash
+}
+
+# %origENV is the caller's original environment
+if ($^O ne 'VMS') {
+ %origENV = %ENV;
+} else {
+ my $proc_env = vms_get_process_logicals;
+ %origENV = %{$proc_env};
+}
+
+sub resetENV
+{
+ # We used to say "%ENV = ();" but this doesn't work in Perl 5.000
+ # through Perl 5.004. It was fixed in Perl 5.004_01, but we don't
+ # want to require that here, so just delete each one individually.
+
+ if ($^O ne 'VMS') {
+ foreach $v (keys %ENV) {
+ delete $ENV{$v};
+ }
+
+ %ENV = %makeENV;
+ } else {
+ my $proc_env = vms_get_process_logicals();
+ my %delta = %{$proc_env};
+ foreach my $v (keys %delta) {
+ if (exists $origENV{$v}) {
+ if ($origENV{$v} ne $delta{$v}) {
+ $ENV{$v} = $origENV{$v};
+ }
+ } else {
+ delete $ENV{$v};
+ }
+ }
+ }
+
+ foreach $v (keys %extraENV) {
+ $ENV{$v} = $extraENV{$v};
+ delete $extraENV{$v};
+ }
+}
+
+sub toplevel
+{
+ # Pull in benign variables from the user's environment
+
+ foreach (# UNIX-specific things
+ 'TZ', 'TMPDIR', 'HOME', 'USER', 'LOGNAME', 'PATH',
+ 'LD_LIBRARY_PATH',
+ # Purify things
+ 'PURIFYOPTIONS',
+ # Windows NT-specific stuff
+ 'Path', 'SystemRoot',
+ # DJGPP-specific stuff
+ 'DJDIR', 'DJGPP', 'SHELL', 'COMSPEC', 'HOSTNAME', 'LFN',
+ 'FNCASE', '387', 'EMU387', 'GROUP'
+ ) {
+ $makeENV{$_} = $ENV{$_} if $ENV{$_};
+ }
+
+ # Make sure our compares are not foiled by locale differences
+
+ $makeENV{LC_ALL} = 'C';
+
+ # Replace the environment with the new one
+ #
+ %origENV = %ENV unless $^O eq 'VMS';
+
+ resetENV();
+
+ $| = 1; # unbuffered output
+
+ $debug = 0; # debug flag
+ $profile = 0; # profiling flag
+ $verbose = 0; # verbose mode flag
+ $detail = 0; # detailed verbosity
+ $keep = 0; # keep temp files around
+ $workdir = "work"; # The directory where the test will start running
+ $scriptdir = "scripts"; # The directory where we find the test scripts
+ $tmpfilesuffix = "t"; # the suffix used on tmpfiles
+ $default_output_stack_level = 0; # used by attach_default_output, etc.
+ $default_input_stack_level = 0; # used by attach_default_input, etc.
+ $cwd = "."; # don't we wish we knew
+ $cwdslash = ""; # $cwd . $pathsep, but "" rather than "./"
+
+ &get_osname; # sets $osname, $vos, $pathsep, and $short_filenames
+
+ &set_defaults; # suite-defined
+
+ &parse_command_line (@ARGV);
+
+ print "OS name = '$osname'\n" if $debug;
+
+ $workpath = "$cwdslash$workdir";
+ $scriptpath = "$cwdslash$scriptdir";
+
+ &set_more_defaults; # suite-defined
+
+ &print_banner;
+
+ if ($osname eq 'VMS' && $cwdslash eq "")
+ {
+ # Porting this script to VMS revealed a small bug in opendir() not
+ # handling search lists correctly when the directory only exists in
+ # one of the logical_devices. Need to find the first directory in
+ # the search list, as that is where things will be written to.
+ my @dirs = split("/", $pwd);
+
+ my $logical_device = $ENV{$dirs[1]};
+ if ($logical_device =~ /([A-Za-z0-9_]+):(:?.+:)+/)
+ {
+ # A search list was found. Grab the first logical device
+ # and use it instead of the search list.
+ $dirs[1]=$1;
+ my $lcl_pwd = join('/', @dirs);
+ $workpath = $lcl_pwd . '/' . $workdir
+ }
+ }
+
+ if (-d $workpath)
+ {
+ print "Clearing $workpath...\n";
+ &remove_directory_tree("$workpath/")
+ || &error ("Couldn't wipe out $workpath\n");
+ }
+ else
+ {
+ mkdir ($workpath, 0777) || &error ("Couldn't mkdir $workpath: $!\n");
+ }
+
+ if (!-d $scriptpath)
+ {
+ &error ("Failed to find $scriptpath containing perl test scripts.\n");
+ }
+
+ if (@TESTS)
+ {
+ print "Making work dirs...\n";
+ foreach $test (@TESTS)
+ {
+ if ($test =~ /^([^\/]+)\//)
+ {
+ $dir = $1;
+ push (@rmdirs, $dir);
+ -d "$workpath/$dir"
+ || mkdir ("$workpath/$dir", 0777)
+ || &error ("Couldn't mkdir $workpath/$dir: $!\n");
+ }
+ }
+ }
+ else
+ {
+ print "Finding tests...\n";
+ opendir (SCRIPTDIR, $scriptpath)
+ || &error ("Couldn't opendir $scriptpath: $!\n");
+ @dirs = grep (!/^(\..*|CVS|RCS)$/, readdir (SCRIPTDIR) );
+ closedir (SCRIPTDIR);
+ foreach $dir (@dirs)
+ {
+ next if ($dir =~ /^(\..*|CVS|RCS)$/ || ! -d "$scriptpath/$dir");
+ push (@rmdirs, $dir);
+ # VMS can have overlayed file systems, so directories may repeat.
+ next if -d "$workpath/$dir";
+ mkdir ("$workpath/$dir", 0777)
+ || &error ("Couldn't mkdir $workpath/$dir: $!\n");
+ opendir (SCRIPTDIR, "$scriptpath/$dir")
+ || &error ("Couldn't opendir $scriptpath/$dir: $!\n");
+ @files = grep (!/^(\..*|CVS|RCS|.*~)$/, readdir (SCRIPTDIR) );
+ closedir (SCRIPTDIR);
+ foreach $test (@files)
+ {
+ -d $test and next;
+ push (@TESTS, "$dir/$test");
+ }
+ }
+ }
+
+ if (@TESTS == 0)
+ {
+ &error ("\nNo tests in $scriptpath, and none were specified.\n");
+ }
+
+ print "\n";
+
+ run_all_tests();
+
+ foreach $dir (@rmdirs)
+ {
+ rmdir ("$workpath/$dir");
+ }
+
+ $| = 1;
+
+ $categories_failed = $categories_run - $categories_passed;
+ $total_tests_failed = $total_tests_run - $total_tests_passed;
+
+ if ($total_tests_failed)
+ {
+ print "\n$total_tests_failed Test";
+ print "s" unless $total_tests_failed == 1;
+ print " in $categories_failed Categor";
+ print ($categories_failed == 1 ? "y" : "ies");
+ print " Failed (See .$diffext* files in $workdir dir for details) :-(\n\n";
+ return 0;
+ }
+ else
+ {
+ print "\n$total_tests_passed Test";
+ print "s" unless $total_tests_passed == 1;
+ print " in $categories_passed Categor";
+ print ($categories_passed == 1 ? "y" : "ies");
+ print " Complete ... No Failures :-)\n\n";
+ return 1;
+ }
+}
+
+sub get_osname
+{
+ # Set up an initial value. In perl5 we can do it the easy way.
+ $osname = defined($^O) ? $^O : '';
+
+ if ($osname eq 'VMS')
+ {
+ $vos = 0;
+ $pathsep = "/";
+ return;
+ }
+
+ # Find a path to Perl
+
+ # See if the filesystem supports long file names with multiple
+ # dots. DOS doesn't.
+ $short_filenames = 0;
+ (open (TOUCHFD, "> fancy.file.name") && close (TOUCHFD))
+ || ($short_filenames = 1);
+ unlink ("fancy.file.name") || ($short_filenames = 1);
+
+ if (! $short_filenames) {
+ # Thanks go to meyering@cs.utexas.edu (Jim Meyering) for suggesting a
+ # better way of doing this. (We used to test for existence of a /mnt
+ # dir, but that apparently fails on an SGI Indigo (whatever that is).)
+ # Because perl on VOS translates /'s to >'s, we need to test for
+ # VOSness rather than testing for Unixness (ie, try > instead of /).
+
+ mkdir (".ostest", 0777) || &error ("Couldn't create .ostest: $!\n", 1);
+ open (TOUCHFD, "> .ostest>ick") && close (TOUCHFD);
+ chdir (".ostest") || &error ("Couldn't chdir to .ostest: $!\n", 1);
+ }
+
+ if (! $short_filenames && -f "ick")
+ {
+ $osname = "vos";
+ $vos = 1;
+ $pathsep = ">";
+ }
+ else
+ {
+ # the following is regrettably knarly, but it seems to be the only way
+ # to not get ugly error messages if uname can't be found.
+ # Hmmm, BSD/OS 2.0's uname -a is excessively verbose. Let's try it
+ # with switches first.
+ eval "chop (\$osname = `sh -c 'uname -nmsr 2>&1'`)";
+ if ($osname =~ /not found/i)
+ {
+ $osname = "(something posixy with no uname)";
+ }
+ elsif ($@ ne "" || $?)
+ {
+ eval "chop (\$osname = `sh -c 'uname -a 2>&1'`)";
+ if ($@ ne "" || $?)
+ {
+ $osname = "(something posixy)";
+ }
+ }
+ $vos = 0;
+ $pathsep = "/";
+ }
+
+ if (! $short_filenames) {
+ chdir ("..") || &error ("Couldn't chdir to ..: $!\n", 1);
+ unlink (".ostest>ick");
+ rmdir (".ostest") || &error ("Couldn't rmdir .ostest: $!\n", 1);
+ }
+}
+
+sub parse_command_line
+{
+ @argv = @_;
+
+ # use @ARGV if no args were passed in
+
+ if (@argv == 0)
+ {
+ @argv = @ARGV;
+ }
+
+ # look at each option; if we don't recognize it, maybe the suite-specific
+ # command line parsing code will...
+
+ while (@argv)
+ {
+ $option = shift @argv;
+ if ($option =~ /^-debug$/i)
+ {
+ print "\nDEBUG ON\n";
+ $debug = 1;
+ }
+ elsif ($option =~ /^-usage$/i)
+ {
+ &print_usage;
+ exit 0;
+ }
+ elsif ($option =~ /^-(h|help)$/i)
+ {
+ &print_help;
+ exit 0;
+ }
+ elsif ($option =~ /^-profile$/i)
+ {
+ $profile = 1;
+ }
+ elsif ($option =~ /^-verbose$/i)
+ {
+ $verbose = 1;
+ }
+ elsif ($option =~ /^-detail$/i)
+ {
+ $detail = 1;
+ $verbose = 1;
+ }
+ elsif ($option =~ /^-keep$/i)
+ {
+ $keep = 1;
+ }
+ elsif (&valid_option($option))
+ {
+ # The suite-defined subroutine takes care of the option
+ }
+ elsif ($option =~ /^-/)
+ {
+ print "Invalid option: $option\n";
+ &print_usage;
+ exit 0;
+ }
+ else # must be the name of a test
+ {
+ $option =~ s/\.pl$//;
+ push(@TESTS,$option);
+ }
+ }
+}
+
+sub max
+{
+ local($num) = shift @_;
+ local($newnum);
+
+ while (@_)
+ {
+ $newnum = shift @_;
+ if ($newnum > $num)
+ {
+ $num = $newnum;
+ }
+ }
+
+ return $num;
+}
+
+sub print_centered
+{
+ local($width, $string) = @_;
+ local($pad);
+
+ if (length ($string))
+ {
+ $pad = " " x ( ($width - length ($string) + 1) / 2);
+ print "$pad$string";
+ }
+}
+
+sub print_banner
+{
+ local($info);
+ local($line);
+ local($len);
+
+ $info = "Running tests for $testee on $osname\n"; # $testee is suite-defined
+ $len = &max (length ($line), length ($testee_version),
+ length ($banner_info), 73) + 5;
+ $line = ("-" x $len) . "\n";
+ if ($len < 78)
+ {
+ $len = 78;
+ }
+
+ &print_centered ($len, $line);
+ &print_centered ($len, $info);
+ &print_centered ($len, $testee_version); # suite-defined
+ &print_centered ($len, $banner_info); # suite-defined
+ &print_centered ($len, $line);
+ print "\n";
+}
+
+sub run_all_tests
+{
+ $categories_run = 0;
+
+ $lasttest = '';
+ foreach $testname (sort @TESTS) {
+ # Skip duplicates on VMS caused by logical name search lists.
+ next if $testname eq $lasttest;
+ $lasttest = $testname;
+ $suite_passed = 1; # reset by test on failure
+ $num_of_logfiles = 0;
+ $num_of_tmpfiles = 0;
+ $description = "";
+ $details = "";
+ $old_makefile = undef;
+ $testname =~ s/^$scriptpath$pathsep//;
+ $perl_testname = "$scriptpath$pathsep$testname";
+ $testname =~ s/(\.pl|\.perl)$//;
+ $testpath = "$workpath$pathsep$testname";
+ # Leave enough space in the extensions to append a number, even
+ # though it needs to fit into 8+3 limits.
+ if ($short_filenames) {
+ $logext = 'l';
+ $diffext = 'd';
+ $baseext = 'b';
+ $runext = 'r';
+ $extext = '';
+ } else {
+ $logext = 'log';
+ $diffext = 'diff';
+ $baseext = 'base';
+ $runext = 'run';
+ $extext = '.';
+ }
+ $extext = '_' if $^O eq 'VMS';
+ $log_filename = "$testpath.$logext";
+ $diff_filename = "$testpath.$diffext";
+ $base_filename = "$testpath.$baseext";
+ $run_filename = "$testpath.$runext";
+ $tmp_filename = "$testpath.$tmpfilesuffix";
+
+ setup_for_test();
+
+ $output = "........................................................ ";
+
+ substr($output,0,length($testname)) = "$testname ";
+
+ print $output;
+
+ $tests_run = 0;
+ $tests_passed = 0;
+
+ # Run the test!
+ $code = do $perl_testname;
+
+ ++$categories_run;
+ $total_tests_run += $tests_run;
+ $total_tests_passed += $tests_passed;
+
+ # How did it go?
+ if (!defined($code)) {
+ # Failed to parse or called die
+ if (length ($@)) {
+ warn "\n*** Test died ($testname): $@\n";
+ } else {
+ warn "\n*** Couldn't parse $perl_testname\n";
+ }
+ $status = "FAILED ($tests_passed/$tests_run passed)";
+ }
+
+ elsif ($code == -1) {
+ # Skipped... not supported
+ $status = "N/A";
+ --$categories_run;
+ }
+
+ elsif ($code != 1) {
+ # Bad result... this shouldn't really happen. Usually means that
+ # the suite forgot to end with "1;".
+ warn "\n*** Test returned $code\n";
+ $status = "FAILED ($tests_passed/$tests_run passed)";
+ }
+
+ elsif ($tests_run == 0) {
+ # Nothing was done!!
+ $status = "FAILED (no tests found!)";
+ }
+
+ elsif ($tests_run > $tests_passed) {
+ # Lose!
+ $status = "FAILED ($tests_passed/$tests_run passed)";
+ }
+
+ else {
+ # Win!
+ ++$categories_passed;
+ $status = "ok ($tests_passed passed)";
+
+ # Clean up
+ for ($i = $num_of_tmpfiles; $i; $i--) {
+ rmfiles($tmp_filename . num_suffix($i));
+ }
+ for ($i = $num_of_logfiles ? $num_of_logfiles : 1; $i; $i--) {
+ rmfiles($log_filename . num_suffix($i));
+ rmfiles($base_filename . num_suffix($i));
+ }
+ }
+
+ # If the verbose option has been specified, then a short description
+ # of each test is printed before displaying the results of each test
+ # describing WHAT is being tested.
+
+ if ($verbose) {
+ if ($detail) {
+ print "\nWHAT IS BEING TESTED\n";
+ print "--------------------";
+ }
+ print "\n\n$description\n\n";
+ }
+
+ # If the detail option has been specified, then the details of HOW
+ # the test is testing what it says it is testing in the verbose output
+ # will be displayed here before the results of the test are displayed.
+
+ if ($detail) {
+ print "\nHOW IT IS TESTED\n";
+ print "----------------";
+ print "\n\n$details\n\n";
+ }
+
+ print "$status\n";
+ }
+}
+
+# If the keep flag is not set, this subroutine deletes all filenames that
+# are sent to it.
+
+sub rmfiles
+{
+ local(@files) = @_;
+
+ if (!$keep)
+ {
+ return (unlink @files);
+ }
+
+ return 1;
+}
+
+sub print_standard_usage
+{
+ local($plname,@moreusage) = @_;
+ local($line);
+
+ print "usage:\t$plname [testname] [-verbose] [-detail] [-keep]\n";
+ print "\t\t\t[-profile] [-usage] [-help] [-debug]\n";
+ foreach (@moreusage) {
+ print "\t\t\t$_\n";
+ }
+}
+
+sub print_standard_help
+{
+ local(@morehelp) = @_;
+ local($line);
+ local($tline);
+ local($t) = " ";
+
+ $line = "Test Driver For $testee";
+ print "$line\n";
+ $line = "=" x length ($line);
+ print "$line\n";
+
+ &print_usage;
+
+ print "\ntestname\n"
+ . "${t}You may, if you wish, run only ONE test if you know the name\n"
+ . "${t}of that test and specify this name anywhere on the command\n"
+ . "${t}line. Otherwise ALL existing tests in the scripts directory\n"
+ . "${t}will be run.\n"
+ . "-verbose\n"
+ . "${t}If this option is given, a description of every test is\n"
+ . "${t}displayed before the test is run. (Not all tests may have\n"
+ . "${t}descriptions at this time)\n"
+ . "-detail\n"
+ . "${t}If this option is given, a detailed description of every\n"
+ . "${t}test is displayed before the test is run. (Not all tests\n"
+ . "${t}have descriptions at this time)\n"
+ . "-profile\n"
+ . "${t}If this option is given, then the profile file\n"
+ . "${t}is added to other profiles every time $testee is run.\n"
+ . "${t}This option only works on VOS at this time.\n"
+ . "-keep\n"
+ . "${t}You may give this option if you DO NOT want ANY\n"
+ . "${t}of the files generated by the tests to be deleted. \n"
+ . "${t}Without this option, all files generated by the test will\n"
+ . "${t}be deleted IF THE TEST PASSES.\n"
+ . "-debug\n"
+ . "${t}Use this option if you would like to see all of the system\n"
+ . "${t}calls issued and their return status while running the tests\n"
+ . "${t}This can be helpful if you're having a problem adding a test\n"
+ . "${t}to the suite, or if the test fails!\n";
+
+ foreach $line (@morehelp)
+ {
+ $tline = $line;
+ if (substr ($tline, 0, 1) eq "\t")
+ {
+ substr ($tline, 0, 1) = $t;
+ }
+ print "$tline\n";
+ }
+}
+
+#######################################################################
+########### Generic Test Driver Subroutines ###########
+#######################################################################
+
+sub get_caller
+{
+ local($depth);
+ local($package);
+ local($filename);
+ local($linenum);
+
+ $depth = defined ($_[0]) ? $_[0] : 1;
+ ($package, $filename, $linenum) = caller ($depth + 1);
+ return "$filename: $linenum";
+}
+
+sub error
+{
+ local($message) = $_[0];
+ local($caller) = &get_caller (1);
+
+ if (defined ($_[1]))
+ {
+ $caller = &get_caller ($_[1] + 1) . " -> $caller";
+ }
+
+ die "$caller: $message";
+}
+
+sub compare_output
+{
+ local($answer,$logfile) = @_;
+ local($slurp, $answer_matched) = ('', 0);
+
+ ++$tests_run;
+
+ if (! defined $answer) {
+ print "Ignoring output ........ " if $debug;
+ $answer_matched = 1;
+ } else {
+ print "Comparing Output ........ " if $debug;
+
+ $slurp = &read_file_into_string ($logfile);
+
+ # For make, get rid of any time skew error before comparing--too bad this
+ # has to go into the "generic" driver code :-/
+ $slurp =~ s/^.*modification time .*in the future.*\n//gm;
+ $slurp =~ s/^.*Clock skew detected.*\n//gm;
+
+ if ($slurp eq $answer) {
+ $answer_matched = 1;
+ } else {
+ # See if it is a slash or CRLF problem
+ local ($answer_mod, $slurp_mod) = ($answer, $slurp);
+
+ $answer_mod =~ tr,\\,/,;
+ $answer_mod =~ s,\r\n,\n,gs;
+
+ $slurp_mod =~ tr,\\,/,;
+ $slurp_mod =~ s,\r\n,\n,gs;
+
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ if ($^O eq 'VMS') {
+
+ # VMS has extra blank lines in output sometimes.
+ # Ticket #41760
+ if (!$answer_matched) {
+ $slurp_mod =~ s/\n\n+/\n/gm;
+ $slurp_mod =~ s/\A\n+//g;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS adding a "Waiting for unfinished jobs..."
+ # Remove it for now to see what else is going on.
+ if (!$answer_matched) {
+ $slurp_mod =~ s/^.+\*\*\* Waiting for unfinished jobs.+$//m;
+ $slurp_mod =~ s/\n\n/\n/gm;
+ $slurp_mod =~ s/^\n+//gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS wants target device to exist or generates an error,
+ # Some test tagets look like VMS devices and trip this.
+ if (!$answer_matched) {
+ $slurp_mod =~ s/^.+\: no such device or address.*$//gim;
+ $slurp_mod =~ s/\n\n/\n/gm;
+ $slurp_mod =~ s/^\n+//gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS error message has a different case
+ if (!$answer_matched) {
+ $slurp_mod =~ s/no such file /No such file /gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS is putting comas instead of spaces in output
+ if (!$answer_matched) {
+ $slurp_mod =~ s/,/ /gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS Is sometimes adding extra leading spaces to output?
+ if (!$answer_matched) {
+ my $slurp_mod = $slurp_mod;
+ $slurp_mod =~ s/^ +//gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS port not handling POSIX encoded child status
+ # Translate error case it for now.
+ if (!$answer_matched) {
+ $slurp_mod =~ s/0x1035a00a/1/gim;
+ $answer_matched = 1 if $slurp_mod =~ /\Q$answer_mod\E/i;
+
+ }
+ if (!$answer_matched) {
+ $slurp_mod =~ s/0x1035a012/2/gim;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # Tests are using a UNIX null command, temp hack
+ # until this can be handled by the VMS port.
+ # ticket # 41761
+ if (!$answer_matched) {
+ $slurp_mod =~ s/^.+DCL-W-NOCOMD.*$//gim;
+ $slurp_mod =~ s/\n\n+/\n/gm;
+ $slurp_mod =~ s/^\n+//gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+ # Tests are using exit 0;
+ # this generates a warning that should stop the make, but does not
+ if (!$answer_matched) {
+ $slurp_mod =~ s/^.+NONAME-W-NOMSG.*$//gim;
+ $slurp_mod =~ s/\n\n+/\n/gm;
+ $slurp_mod =~ s/^\n+//gm;
+ $answer_matched = ($slurp_mod eq $answer_mod);
+ }
+
+ # VMS is sometimes adding single quotes to output?
+ if (!$answer_matched) {
+ my $noq_slurp_mod = $slurp_mod;
+ $noq_slurp_mod =~ s/\'//gm;
+ $answer_matched = ($noq_slurp_mod eq $answer_mod);
+
+ # And missing an extra space in output
+ if (!$answer_matched) {
+ $noq_answer_mod = $answer_mod;
+ $noq_answer_mod =~ s/\h\h+/ /gm;
+ $answer_matched = ($noq_slurp_mod eq $noq_answer_mod);
+ }
+
+ # VMS adding ; to end of some lines.
+ if (!$answer_matched) {
+ $noq_slurp_mod =~ s/;\n/\n/gm;
+ $answer_matched = ($noq_slurp_mod eq $noq_answer_mod);
+ }
+
+ # VMS adding trailing space to end of some quoted lines.
+ if (!$answer_matched) {
+ $noq_slurp_mod =~ s/\h+\n/\n/gm;
+ $answer_matched = ($noq_slurp_mod eq $noq_answer_mod);
+ }
+
+ # And VMS missing leading blank line
+ if (!$answer_matched) {
+ $noq_answer_mod =~ s/\A\n//g;
+ $answer_matched = ($noq_slurp_mod eq $noq_answer_mod);
+ }
+
+ # Unix double quotes showing up as single quotes on VMS.
+ if (!$answer_matched) {
+ $noq_answer_mod =~ s/\"//g;
+ $answer_matched = ($noq_slurp_mod eq $noq_answer_mod);
+ }
+ }
+ }
+
+ # If it still doesn't match, see if the answer might be a regex.
+ if (!$answer_matched && $answer =~ m,^/(.+)/$,) {
+ $answer_matched = ($slurp =~ /$1/);
+ if (!$answer_matched && $answer_mod =~ m,^/(.+)/$,) {
+ $answer_matched = ($slurp_mod =~ /$1/);
+ }
+ }
+ }
+ }
+
+ if ($answer_matched && $test_passed)
+ {
+ print "ok\n" if $debug;
+ ++$tests_passed;
+ return 1;
+ }
+
+ if (! $answer_matched) {
+ print "DIFFERENT OUTPUT\n" if $debug;
+
+ &create_file (&get_basefile, $answer);
+ &create_file (&get_runfile, $command_string);
+
+ print "\nCreating Difference File ...\n" if $debug;
+
+ # Create the difference file
+
+ local($command) = "diff -c " . &get_basefile . " " . $logfile;
+ &run_command_with_output(&get_difffile,$command);
+ }
+
+ return 0;
+}
+
+sub read_file_into_string
+{
+ local($filename) = @_;
+ local($oldslash) = $/;
+
+ undef $/;
+
+ open (RFISFILE, $filename) || return "";
+ local ($slurp) = <RFISFILE>;
+ close (RFISFILE);
+
+ $/ = $oldslash;
+
+ return $slurp;
+}
+
+my @OUTSTACK = ();
+my @ERRSTACK = ();
+
+sub attach_default_output
+{
+ local ($filename) = @_;
+ local ($code);
+
+ if ($vos)
+ {
+ $code = system "++attach_default_output_hack $filename";
+ $code == -2 || &error ("adoh death\n", 1);
+ return 1;
+ }
+
+ my $dup = undef;
+ open($dup, '>&', STDOUT) or error("ado: $! duping STDOUT\n", 1);
+ push @OUTSTACK, $dup;
+
+ $dup = undef;
+ open($dup, '>&', STDERR) or error("ado: $! duping STDERR\n", 1);
+ push @ERRSTACK, $dup;
+
+ open(STDOUT, '>', $filename) or error("ado: $filename: $!\n", 1);
+ open(STDERR, ">&STDOUT") or error("ado: $filename: $!\n", 1);
+}
+
+# close the current stdout/stderr, and restore the previous ones from
+# the "stack."
+
+sub detach_default_output
+{
+ local ($code);
+
+ if ($vos)
+ {
+ $code = system "++detach_default_output_hack";
+ $code == -2 || &error ("ddoh death\n", 1);
+ return 1;
+ }
+
+ @OUTSTACK or error("default output stack has flown under!\n", 1);
+
+ close(STDOUT);
+ close(STDERR) unless $^O eq 'VMS';
+
+
+ open (STDOUT, '>&', pop @OUTSTACK) or error("ddo: $! duping STDOUT\n", 1);
+ open (STDERR, '>&', pop @ERRSTACK) or error("ddo: $! duping STDERR\n", 1);
+}
+
+# This runs a command without any debugging info.
+sub _run_command
+{
+ my $code;
+
+ # We reset this before every invocation. On Windows I think there is only
+ # one environment, not one per process, so I think that variables set in
+ # test scripts might leak into subsequent tests if this isn't reset--???
+ resetENV();
+
+ eval {
+ if ($^O eq 'VMS') {
+ local $SIG{ALRM} = sub {
+ my $e = $ERRSTACK[0];
+ print $e "\nTest timed out after $test_timeout seconds\n";
+ die "timeout\n"; };
+# alarm $test_timeout;
+ system(@_);
+ my $severity = ${^CHILD_ERROR_NATIVE} & 7;
+ $code = 0;
+ if (($severity & 1) == 0) {
+ $code = 512;
+ }
+
+ # Get the vms status.
+ my $vms_code = ${^CHILD_ERROR_NATIVE};
+
+ # Remove the print status bit
+ $vms_code &= ~0x10000000;
+
+ # Posix code translation.
+ if (($vms_code & 0xFFFFF000) == 0x35a000) {
+ $code = (($vms_code & 0xFFF) >> 3) * 256;
+ }
+ } else {
+ my $pid = fork();
+ if (! $pid) {
+ exec(@_) or die "Cannot execute $_[0]\n";
+ }
+ local $SIG{ALRM} = sub { my $e = $ERRSTACK[0]; print $e "\nTest timed out after $test_timeout seconds\n"; die "timeout\n"; };
+ alarm $test_timeout;
+ waitpid($pid, 0) > 0 or die "No such pid: $pid\n";
+ $code = $?;
+ }
+ alarm 0;
+ };
+ if ($@) {
+ # The eval failed. If it wasn't SIGALRM then die.
+ $@ eq "timeout\n" or die "Command failed: $@";
+
+ # Timed out. Resend the alarm to our process group to kill the children.
+ $SIG{ALRM} = 'IGNORE';
+ kill -14, $$;
+ $code = 14;
+ }
+
+ return $code;
+}
+
+# run one command (passed as a list of arg 0 - n), returning 0 on success
+# and nonzero on failure.
+
+sub run_command
+{
+ print "\nrun_command: @_\n" if $debug;
+ my $code = _run_command(@_);
+ print "run_command returned $code.\n" if $debug;
+ print "vms status = ${^CHILD_ERROR_NATIVE}\n" if $debug and $^O eq 'VMS';
+ return $code;
+}
+
+# run one command (passed as a list of arg 0 - n, with arg 0 being the
+# second arg to this routine), returning 0 on success and non-zero on failure.
+# The first arg to this routine is a filename to connect to the stdout
+# & stderr of the child process.
+
+sub run_command_with_output
+{
+ my $filename = shift;
+
+ print "\nrun_command_with_output($filename,$runname): @_\n" if $debug;
+ &attach_default_output ($filename);
+ my $code = eval { _run_command(@_) };
+ my $err = $@;
+ &detach_default_output;
+
+ $err and die $err;
+
+ print "run_command_with_output returned $code.\n" if $debug;
+ print "vms status = ${^CHILD_ERROR_NATIVE}\n" if $debug and $^O eq 'VMS';
+ return $code;
+}
+
+# performs the equivalent of an "rm -rf" on the first argument. Like
+# rm, if the path ends in /, leaves the (now empty) directory; otherwise
+# deletes it, too.
+
+sub remove_directory_tree
+{
+ local ($targetdir) = @_;
+ local ($nuketop) = 1;
+ local ($ch);
+
+ $ch = substr ($targetdir, length ($targetdir) - 1);
+ if ($ch eq "/" || $ch eq $pathsep)
+ {
+ $targetdir = substr ($targetdir, 0, length ($targetdir) - 1);
+ $nuketop = 0;
+ }
+
+ if (! -e $targetdir)
+ {
+ return 1;
+ }
+
+ &remove_directory_tree_inner ("RDT00", $targetdir) || return 0;
+ if ($nuketop)
+ {
+ rmdir $targetdir || return 0;
+ }
+
+ return 1;
+}
+
+sub remove_directory_tree_inner
+{
+ local ($dirhandle, $targetdir) = @_;
+ local ($object);
+ local ($subdirhandle);
+
+ opendir ($dirhandle, $targetdir) || return 0;
+ $subdirhandle = $dirhandle;
+ $subdirhandle++;
+ while ($object = readdir ($dirhandle))
+ {
+ if ($object =~ /^(\.\.?|CVS|RCS)$/)
+ {
+ next;
+ }
+
+ $object = "$targetdir$pathsep$object";
+ lstat ($object);
+
+ if (-d _ && &remove_directory_tree_inner ($subdirhandle, $object))
+ {
+ rmdir $object || return 0;
+ }
+ else
+ {
+ if ($^O ne 'VMS')
+ {
+ unlink $object || return 0;
+ }
+ else
+ {
+ # VMS can have multiple versions of a file.
+ 1 while unlink $object;
+ }
+ }
+ }
+ closedir ($dirhandle);
+ return 1;
+}
+
+# We used to use this behavior for this function:
+#
+#sub touch
+#{
+# local (@filenames) = @_;
+# local ($now) = time;
+# local ($file);
+#
+# foreach $file (@filenames)
+# {
+# utime ($now, $now, $file)
+# || (open (TOUCHFD, ">> $file") && close (TOUCHFD))
+# || &error ("Couldn't touch $file: $!\n", 1);
+# }
+# return 1;
+#}
+#
+# But this behaves badly on networked filesystems where the time is
+# skewed, because it sets the time of the file based on the _local_
+# host. Normally when you modify a file, it's the _remote_ host that
+# determines the modtime, based on _its_ clock. So, instead, now we open
+# the file and write something into it to force the remote host to set
+# the modtime correctly according to its clock.
+#
+
+sub touch
+{
+ local ($file);
+
+ foreach $file (@_) {
+ (open(T, ">> $file") && print(T "\n") && close(T))
+ || &error("Couldn't touch $file: $!\n", 1);
+ }
+}
+
+# Touch with a time offset. To DTRT, call touch() then use stat() to get the
+# access/mod time for each file and apply the offset.
+
+sub utouch
+{
+ local ($off) = shift;
+ local ($file);
+
+ &touch(@_);
+
+ local (@s) = stat($_[0]);
+
+ utime($s[8]+$off, $s[9]+$off, @_);
+}
+
+# open a file, write some stuff to it, and close it.
+
+sub create_file
+{
+ local ($filename, @lines) = @_;
+
+ open (CF, "> $filename") || &error ("Couldn't open $filename: $!\n", 1);
+ foreach $line (@lines)
+ {
+ print CF $line;
+ }
+ close (CF);
+}
+
+# create a directory tree described by an associative array, wherein each
+# key is a relative pathname (using slashes) and its associated value is
+# one of:
+# DIR indicates a directory
+# FILE:contents indicates a file, which should contain contents +\n
+# LINK:target indicates a symlink, pointing to $basedir/target
+# The first argument is the dir under which the structure will be created
+# (the dir will be made and/or cleaned if necessary); the second argument
+# is the associative array.
+
+sub create_dir_tree
+{
+ local ($basedir, %dirtree) = @_;
+ local ($path);
+
+ &remove_directory_tree ("$basedir");
+ mkdir ($basedir, 0777) || &error ("Couldn't mkdir $basedir: $!\n", 1);
+
+ foreach $path (sort keys (%dirtree))
+ {
+ if ($dirtree {$path} =~ /^DIR$/)
+ {
+ mkdir ("$basedir/$path", 0777)
+ || &error ("Couldn't mkdir $basedir/$path: $!\n", 1);
+ }
+ elsif ($dirtree {$path} =~ /^FILE:(.*)$/)
+ {
+ &create_file ("$basedir/$path", $1 . "\n");
+ }
+ elsif ($dirtree {$path} =~ /^LINK:(.*)$/)
+ {
+ symlink ("$basedir/$1", "$basedir/$path")
+ || &error ("Couldn't symlink $basedir/$path -> $basedir/$1: $!\n", 1);
+ }
+ else
+ {
+ &error ("Bogus dirtree type: \"$dirtree{$path}\"\n", 1);
+ }
+ }
+ if ($just_setup_tree)
+ {
+ die "Tree is setup...\n";
+ }
+}
+
+# compare a directory tree with an associative array in the format used
+# by create_dir_tree, above.
+# The first argument is the dir under which the structure should be found;
+# the second argument is the associative array.
+
+sub compare_dir_tree
+{
+ local ($basedir, %dirtree) = @_;
+ local ($path);
+ local ($i);
+ local ($bogus) = 0;
+ local ($contents);
+ local ($target);
+ local ($fulltarget);
+ local ($found);
+ local (@files);
+ local (@allfiles);
+
+ opendir (DIR, $basedir) || &error ("Couldn't open $basedir: $!\n", 1);
+ @allfiles = grep (!/^(\.\.?|CVS|RCS)$/, readdir (DIR) );
+ closedir (DIR);
+ if ($debug)
+ {
+ print "dirtree: (%dirtree)\n$basedir: (@allfiles)\n";
+ }
+
+ foreach $path (sort keys (%dirtree))
+ {
+ if ($debug)
+ {
+ print "Checking $path ($dirtree{$path}).\n";
+ }
+
+ $found = 0;
+ foreach $i (0 .. $#allfiles)
+ {
+ if ($allfiles[$i] eq $path)
+ {
+ splice (@allfiles, $i, 1); # delete it
+ if ($debug)
+ {
+ print " Zapped $path; files now (@allfiles).\n";
+ }
+ lstat ("$basedir/$path");
+ $found = 1;
+ last;
+ }
+ }
+
+ if (!$found)
+ {
+ print "compare_dir_tree: $path does not exist.\n";
+ $bogus = 1;
+ next;
+ }
+
+ if ($dirtree {$path} =~ /^DIR$/)
+ {
+ if (-d _ && opendir (DIR, "$basedir/$path") )
+ {
+ @files = readdir (DIR);
+ closedir (DIR);
+ @files = grep (!/^(\.\.?|CVS|RCS)$/ && ($_ = "$path/$_"), @files);
+ push (@allfiles, @files);
+ if ($debug)
+ {
+ print " Read in $path; new files (@files).\n";
+ }
+ }
+ else
+ {
+ print "compare_dir_tree: $path is not a dir.\n";
+ $bogus = 1;
+ }
+ }
+ elsif ($dirtree {$path} =~ /^FILE:(.*)$/)
+ {
+ if (-l _ || !-f _)
+ {
+ print "compare_dir_tree: $path is not a file.\n";
+ $bogus = 1;
+ next;
+ }
+
+ if ($1 ne "*")
+ {
+ $contents = &read_file_into_string ("$basedir/$path");
+ if ($contents ne "$1\n")
+ {
+ print "compare_dir_tree: $path contains wrong stuff."
+ . " Is:\n$contentsShould be:\n$1\n";
+ $bogus = 1;
+ }
+ }
+ }
+ elsif ($dirtree {$path} =~ /^LINK:(.*)$/)
+ {
+ $target = $1;
+ if (!-l _)
+ {
+ print "compare_dir_tree: $path is not a link.\n";
+ $bogus = 1;
+ next;
+ }
+
+ $contents = readlink ("$basedir/$path");
+ $contents =~ tr/>/\//;
+ $fulltarget = "$basedir/$target";
+ $fulltarget =~ tr/>/\//;
+ if (!($contents =~ /$fulltarget$/))
+ {
+ if ($debug)
+ {
+ $target = $fulltarget;
+ }
+ print "compare_dir_tree: $path should be link to $target, "
+ . "not $contents.\n";
+ $bogus = 1;
+ }
+ }
+ else
+ {
+ &error ("Bogus dirtree type: \"$dirtree{$path}\"\n", 1);
+ }
+ }
+
+ if ($debug)
+ {
+ print "leftovers: (@allfiles).\n";
+ }
+
+ foreach $file (@allfiles)
+ {
+ print "compare_dir_tree: $file should not exist.\n";
+ $bogus = 1;
+ }
+
+ return !$bogus;
+}
+
+# this subroutine generates the numeric suffix used to keep tmp filenames,
+# log filenames, etc., unique. If the number passed in is 1, then a null
+# string is returned; otherwise, we return ".n", where n + 1 is the number
+# we were given.
+
+sub num_suffix
+{
+ local($num) = @_;
+
+ if (--$num > 0) {
+ return "$extext$num";
+ }
+
+ return "";
+}
+
+# This subroutine returns a log filename with a number appended to
+# the end corresponding to how many logfiles have been created in the
+# current running test. An optional parameter may be passed (0 or 1).
+# If a 1 is passed, then it does NOT increment the logfile counter
+# and returns the name of the latest logfile. If either no parameter
+# is passed at all or a 0 is passed, then the logfile counter is
+# incremented and the new name is returned.
+
+sub get_logfile
+{
+ local($no_increment) = @_;
+
+ $num_of_logfiles += !$no_increment;
+
+ return ($log_filename . &num_suffix ($num_of_logfiles));
+}
+
+# This subroutine returns a base (answer) filename with a number
+# appended to the end corresponding to how many logfiles (and thus
+# base files) have been created in the current running test.
+# NO PARAMETERS ARE PASSED TO THIS SUBROUTINE.
+
+sub get_basefile
+{
+ return ($base_filename . &num_suffix ($num_of_logfiles));
+}
+
+# This subroutine returns a difference filename with a number appended
+# to the end corresponding to how many logfiles (and thus diff files)
+# have been created in the current running test.
+
+sub get_difffile
+{
+ return ($diff_filename . &num_suffix ($num_of_logfiles));
+}
+
+# This subroutine returns a command filename with a number appended
+# to the end corresponding to how many logfiles (and thus command files)
+# have been created in the current running test.
+
+sub get_runfile
+{
+ return ($run_filename . &num_suffix ($num_of_logfiles));
+}
+
+# just like logfile, only a generic tmp filename for use by the test.
+# they are automatically cleaned up unless -keep was used, or the test fails.
+# Pass an argument of 1 to return the same filename as the previous call.
+
+sub get_tmpfile
+{
+ local($no_increment) = @_;
+
+ $num_of_tmpfiles += !$no_increment;
+
+ return ($tmp_filename . &num_suffix ($num_of_tmpfiles));
+}
+
+1;
diff --git a/variable.c b/variable.c
new file mode 100644
index 0000000..36ab1f4
--- /dev/null
+++ b/variable.c
@@ -0,0 +1,1802 @@
+/* Internals of variables for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <assert.h>
+
+#include "filedef.h"
+#include "dep.h"
+#include "job.h"
+#include "commands.h"
+#include "variable.h"
+#include "rule.h"
+#ifdef WINDOWS32
+#include "pathstuff.h"
+#endif
+#include "hash.h"
+
+/* Incremented every time we add or remove a global variable. */
+static unsigned long variable_changenum;
+
+/* Chain of all pattern-specific variables. */
+
+static struct pattern_var *pattern_vars;
+
+/* Pointer to the last struct in the pack of a specific size, from 1 to 255.*/
+
+static struct pattern_var *last_pattern_vars[256];
+
+/* Create a new pattern-specific variable struct. The new variable is
+ inserted into the PATTERN_VARS list in the shortest patterns first
+ order to support the shortest stem matching (the variables are
+ matched in the reverse order so the ones with the longest pattern
+ will be considered first). Variables with the same pattern length
+ are inserted in the definition order. */
+
+struct pattern_var *
+create_pattern_var (const char *target, const char *suffix)
+{
+ register unsigned int len = strlen (target);
+ register struct pattern_var *p = xmalloc (sizeof (struct pattern_var));
+
+ if (pattern_vars != 0)
+ {
+ if (len < 256 && last_pattern_vars[len] != 0)
+ {
+ p->next = last_pattern_vars[len]->next;
+ last_pattern_vars[len]->next = p;
+ }
+ else
+ {
+ /* Find the position where we can insert this variable. */
+ register struct pattern_var **v;
+
+ for (v = &pattern_vars; ; v = &(*v)->next)
+ {
+ /* Insert at the end of the pack so that patterns with the
+ same length appear in the order they were defined .*/
+
+ if (*v == 0 || (*v)->len > len)
+ {
+ p->next = *v;
+ *v = p;
+ break;
+ }
+ }
+ }
+ }
+ else
+ {
+ pattern_vars = p;
+ p->next = 0;
+ }
+
+ p->target = target;
+ p->len = len;
+ p->suffix = suffix + 1;
+
+ if (len < 256)
+ last_pattern_vars[len] = p;
+
+ return p;
+}
+
+/* Look up a target in the pattern-specific variable list. */
+
+static struct pattern_var *
+lookup_pattern_var (struct pattern_var *start, const char *target)
+{
+ struct pattern_var *p;
+ unsigned int targlen = strlen (target);
+
+ for (p = start ? start->next : pattern_vars; p != 0; p = p->next)
+ {
+ const char *stem;
+ unsigned int stemlen;
+
+ if (p->len > targlen)
+ /* It can't possibly match. */
+ continue;
+
+ /* From the lengths of the filename and the pattern parts,
+ find the stem: the part of the filename that matches the %. */
+ stem = target + (p->suffix - p->target - 1);
+ stemlen = targlen - p->len + 1;
+
+ /* Compare the text in the pattern before the stem, if any. */
+ if (stem > target && !strneq (p->target, target, stem - target))
+ continue;
+
+ /* Compare the text in the pattern after the stem, if any.
+ We could test simply using streq, but this way we compare the
+ first two characters immediately. This saves time in the very
+ common case where the first character matches because it is a
+ period. */
+ if (*p->suffix == stem[stemlen]
+ && (*p->suffix == '\0' || streq (&p->suffix[1], &stem[stemlen+1])))
+ break;
+ }
+
+ return p;
+}
+
+/* Hash table of all global variable definitions. */
+
+static unsigned long
+variable_hash_1 (const void *keyv)
+{
+ struct variable const *key = (struct variable const *) keyv;
+ return_STRING_N_HASH_1 (key->name, key->length);
+}
+
+static unsigned long
+variable_hash_2 (const void *keyv)
+{
+ struct variable const *key = (struct variable const *) keyv;
+ return_STRING_N_HASH_2 (key->name, key->length);
+}
+
+static int
+variable_hash_cmp (const void *xv, const void *yv)
+{
+ struct variable const *x = (struct variable const *) xv;
+ struct variable const *y = (struct variable const *) yv;
+ int result = x->length - y->length;
+ if (result)
+ return result;
+ return_STRING_N_COMPARE (x->name, y->name, x->length);
+}
+
+#ifndef VARIABLE_BUCKETS
+#define VARIABLE_BUCKETS 523
+#endif
+#ifndef PERFILE_VARIABLE_BUCKETS
+#define PERFILE_VARIABLE_BUCKETS 23
+#endif
+#ifndef SMALL_SCOPE_VARIABLE_BUCKETS
+#define SMALL_SCOPE_VARIABLE_BUCKETS 13
+#endif
+
+static struct variable_set global_variable_set;
+static struct variable_set_list global_setlist
+ = { 0, &global_variable_set, 0 };
+struct variable_set_list *current_variable_set_list = &global_setlist;
+
+/* Implement variables. */
+
+void
+init_hash_global_variable_set (void)
+{
+ hash_init (&global_variable_set.table, VARIABLE_BUCKETS,
+ variable_hash_1, variable_hash_2, variable_hash_cmp);
+}
+
+/* Define variable named NAME with value VALUE in SET. VALUE is copied.
+ LENGTH is the length of NAME, which does not need to be null-terminated.
+ ORIGIN specifies the origin of the variable (makefile, command line
+ or environment).
+ If RECURSIVE is nonzero a flag is set in the variable saying
+ that it should be recursively re-expanded. */
+
+struct variable *
+define_variable_in_set (const char *name, unsigned int length,
+ const char *value, enum variable_origin origin,
+ int recursive, struct variable_set *set,
+ const floc *flocp)
+{
+ struct variable *v;
+ struct variable **var_slot;
+ struct variable var_key;
+
+ if (set == NULL)
+ set = &global_variable_set;
+
+ var_key.name = (char *) name;
+ var_key.length = length;
+ var_slot = (struct variable **) hash_find_slot (&set->table, &var_key);
+ v = *var_slot;
+
+#ifdef VMS
+ /* VMS does not populate envp[] with DCL symbols and logical names which
+ historically are mapped to environent variables.
+ If the variable is not yet defined, then we need to check if getenv()
+ can find it. Do not do this for origin == o_env to avoid infinte
+ recursion */
+ if (HASH_VACANT (v) && (origin != o_env))
+ {
+ struct variable * vms_variable;
+ char * vname = alloca (length + 1);
+ char * vvalue;
+
+ strncpy (vname, name, length);
+ vvalue = getenv(vname);
+
+ /* Values starting with '$' are probably foreign commands.
+ We want to treat them as Shell aliases and not look them up here */
+ if ((vvalue != NULL) && (vvalue[0] != '$'))
+ {
+ vms_variable = lookup_variable(name, length);
+ /* Refresh the slot */
+ var_slot = (struct variable **) hash_find_slot (&set->table,
+ &var_key);
+ v = *var_slot;
+ }
+ }
+#endif
+
+ if (env_overrides && origin == o_env)
+ origin = o_env_override;
+
+ if (! HASH_VACANT (v))
+ {
+ if (env_overrides && v->origin == o_env)
+ /* V came from in the environment. Since it was defined
+ before the switches were parsed, it wasn't affected by -e. */
+ v->origin = o_env_override;
+
+ /* A variable of this name is already defined.
+ If the old definition is from a stronger source
+ than this one, don't redefine it. */
+ if ((int) origin >= (int) v->origin)
+ {
+ free (v->value);
+ v->value = xstrdup (value);
+ if (flocp != 0)
+ v->fileinfo = *flocp;
+ else
+ v->fileinfo.filenm = 0;
+ v->origin = origin;
+ v->recursive = recursive;
+ }
+ return v;
+ }
+
+ /* Create a new variable definition and add it to the hash table. */
+
+ v = xmalloc (sizeof (struct variable));
+ v->name = xstrndup (name, length);
+ v->length = length;
+ hash_insert_at (&set->table, v, var_slot);
+ if (set == &global_variable_set)
+ ++variable_changenum;
+
+ v->value = xstrdup (value);
+ if (flocp != 0)
+ v->fileinfo = *flocp;
+ else
+ v->fileinfo.filenm = 0;
+ v->origin = origin;
+ v->recursive = recursive;
+ v->special = 0;
+ v->expanding = 0;
+ v->exp_count = 0;
+ v->per_target = 0;
+ v->append = 0;
+ v->private_var = 0;
+ v->export = v_default;
+
+ v->exportable = 1;
+ if (*name != '_' && (*name < 'A' || *name > 'Z')
+ && (*name < 'a' || *name > 'z'))
+ v->exportable = 0;
+ else
+ {
+ for (++name; *name != '\0'; ++name)
+ if (*name != '_' && (*name < 'a' || *name > 'z')
+ && (*name < 'A' || *name > 'Z') && !ISDIGIT(*name))
+ break;
+
+ if (*name != '\0')
+ v->exportable = 0;
+ }
+
+ return v;
+}
+
+
+/* Undefine variable named NAME in SET. LENGTH is the length of NAME, which
+ does not need to be null-terminated. ORIGIN specifies the origin of the
+ variable (makefile, command line or environment). */
+
+static void
+free_variable_name_and_value (const void *item)
+{
+ struct variable *v = (struct variable *) item;
+ free (v->name);
+ free (v->value);
+}
+
+void
+free_variable_set (struct variable_set_list *list)
+{
+ hash_map (&list->set->table, free_variable_name_and_value);
+ hash_free (&list->set->table, 1);
+ free (list->set);
+ free (list);
+}
+
+void
+undefine_variable_in_set (const char *name, unsigned int length,
+ enum variable_origin origin,
+ struct variable_set *set)
+{
+ struct variable *v;
+ struct variable **var_slot;
+ struct variable var_key;
+
+ if (set == NULL)
+ set = &global_variable_set;
+
+ var_key.name = (char *) name;
+ var_key.length = length;
+ var_slot = (struct variable **) hash_find_slot (&set->table, &var_key);
+
+ if (env_overrides && origin == o_env)
+ origin = o_env_override;
+
+ v = *var_slot;
+ if (! HASH_VACANT (v))
+ {
+ if (env_overrides && v->origin == o_env)
+ /* V came from in the environment. Since it was defined
+ before the switches were parsed, it wasn't affected by -e. */
+ v->origin = o_env_override;
+
+ /* Undefine only if this undefinition is from an equal or stronger
+ source than the variable definition. */
+ if ((int) origin >= (int) v->origin)
+ {
+ hash_delete_at (&set->table, var_slot);
+ free_variable_name_and_value (v);
+ free (v);
+ if (set == &global_variable_set)
+ ++variable_changenum;
+ }
+ }
+}
+
+/* If the variable passed in is "special", handle its special nature.
+ Currently there are two such variables, both used for introspection:
+ .VARIABLES expands to a list of all the variables defined in this instance
+ of make.
+ .TARGETS expands to a list of all the targets defined in this
+ instance of make.
+ Returns the variable reference passed in. */
+
+#define EXPANSION_INCREMENT(_l) ((((_l) / 500) + 1) * 500)
+
+static struct variable *
+lookup_special_var (struct variable *var)
+{
+ static unsigned long last_changenum = 0;
+
+
+ /* This one actually turns out to be very hard, due to the way the parser
+ records targets. The way it works is that target information is collected
+ internally until make knows the target is completely specified. It unitl
+ it sees that some new construct (a new target or variable) is defined that
+ it knows the previous one is done. In short, this means that if you do
+ this:
+
+ all:
+
+ TARGS := $(.TARGETS)
+
+ then $(TARGS) won't contain "all", because it's not until after the
+ variable is created that the previous target is completed.
+
+ Changing this would be a major pain. I think a less complex way to do it
+ would be to pre-define the target files as soon as the first line is
+ parsed, then come back and do the rest of the definition as now. That
+ would allow $(.TARGETS) to be correct without a major change to the way
+ the parser works.
+
+ if (streq (var->name, ".TARGETS"))
+ var->value = build_target_list (var->value);
+ else
+ */
+
+ if (variable_changenum != last_changenum && streq (var->name, ".VARIABLES"))
+ {
+ unsigned long max = EXPANSION_INCREMENT (strlen (var->value));
+ unsigned long len;
+ char *p;
+ struct variable **vp = (struct variable **) global_variable_set.table.ht_vec;
+ struct variable **end = &vp[global_variable_set.table.ht_size];
+
+ /* Make sure we have at least MAX bytes in the allocated buffer. */
+ var->value = xrealloc (var->value, max);
+
+ /* Walk through the hash of variables, constructing a list of names. */
+ p = var->value;
+ len = 0;
+ for (; vp < end; ++vp)
+ if (!HASH_VACANT (*vp))
+ {
+ struct variable *v = *vp;
+ int l = v->length;
+
+ len += l + 1;
+ if (len > max)
+ {
+ unsigned long off = p - var->value;
+
+ max += EXPANSION_INCREMENT (l + 1);
+ var->value = xrealloc (var->value, max);
+ p = &var->value[off];
+ }
+
+ memcpy (p, v->name, l);
+ p += l;
+ *(p++) = ' ';
+ }
+ *(p-1) = '\0';
+
+ /* Remember the current variable change number. */
+ last_changenum = variable_changenum;
+ }
+
+ return var;
+}
+
+
+/* Lookup a variable whose name is a string starting at NAME
+ and with LENGTH chars. NAME need not be null-terminated.
+ Returns address of the 'struct variable' containing all info
+ on the variable, or nil if no such variable is defined. */
+
+struct variable *
+lookup_variable (const char *name, unsigned int length)
+{
+ const struct variable_set_list *setlist;
+ struct variable var_key;
+ int is_parent = 0;
+
+ var_key.name = (char *) name;
+ var_key.length = length;
+
+ for (setlist = current_variable_set_list;
+ setlist != 0; setlist = setlist->next)
+ {
+ const struct variable_set *set = setlist->set;
+ struct variable *v;
+
+ v = (struct variable *) hash_find_item ((struct hash_table *) &set->table, &var_key);
+ if (v && (!is_parent || !v->private_var))
+ return v->special ? lookup_special_var (v) : v;
+
+ is_parent |= setlist->next_is_parent;
+ }
+
+#ifdef VMS
+ /* VMS does not populate envp[] with DCL symbols and logical names which
+ historically are mapped to enviroment varables and returned by getenv() */
+ {
+ char *vname = alloca (length + 1);
+ char *value;
+ strncpy (vname, name, length);
+ vname[length] = 0;
+ value = getenv (vname);
+ if (value != 0)
+ {
+ char *sptr;
+ int scnt;
+
+ sptr = value;
+ scnt = 0;
+
+ while ((sptr = strchr (sptr, '$')))
+ {
+ scnt++;
+ sptr++;
+ }
+
+ if (scnt > 0)
+ {
+ char *nvalue;
+ char *nptr;
+
+ nvalue = alloca (strlen (value) + scnt + 1);
+ sptr = value;
+ nptr = nvalue;
+
+ while (*sptr)
+ {
+ if (*sptr == '$')
+ {
+ *nptr++ = '$';
+ *nptr++ = '$';
+ }
+ else
+ {
+ *nptr++ = *sptr;
+ }
+ sptr++;
+ }
+
+ *nptr = '\0';
+ return define_variable (vname, length, nvalue, o_env, 1);
+
+ }
+
+ return define_variable (vname, length, value, o_env, 1);
+ }
+ }
+#endif /* VMS */
+
+ return 0;
+}
+
+/* Lookup a variable whose name is a string starting at NAME
+ and with LENGTH chars in set SET. NAME need not be null-terminated.
+ Returns address of the 'struct variable' containing all info
+ on the variable, or nil if no such variable is defined. */
+
+struct variable *
+lookup_variable_in_set (const char *name, unsigned int length,
+ const struct variable_set *set)
+{
+ struct variable var_key;
+
+ var_key.name = (char *) name;
+ var_key.length = length;
+
+ return (struct variable *) hash_find_item ((struct hash_table *) &set->table, &var_key);
+}
+
+/* Initialize FILE's variable set list. If FILE already has a variable set
+ list, the topmost variable set is left intact, but the the rest of the
+ chain is replaced with FILE->parent's setlist. If FILE is a double-colon
+ rule, then we will use the "root" double-colon target's variable set as the
+ parent of FILE's variable set.
+
+ If we're READING a makefile, don't do the pattern variable search now,
+ since the pattern variable might not have been defined yet. */
+
+void
+initialize_file_variables (struct file *file, int reading)
+{
+ struct variable_set_list *l = file->variables;
+
+ if (l == 0)
+ {
+ l = (struct variable_set_list *)
+ xmalloc (sizeof (struct variable_set_list));
+ l->set = xmalloc (sizeof (struct variable_set));
+ hash_init (&l->set->table, PERFILE_VARIABLE_BUCKETS,
+ variable_hash_1, variable_hash_2, variable_hash_cmp);
+ file->variables = l;
+ }
+
+ /* If this is a double-colon, then our "parent" is the "root" target for
+ this double-colon rule. Since that rule has the same name, parent,
+ etc. we can just use its variables as the "next" for ours. */
+
+ if (file->double_colon && file->double_colon != file)
+ {
+ initialize_file_variables (file->double_colon, reading);
+ l->next = file->double_colon->variables;
+ l->next_is_parent = 0;
+ return;
+ }
+
+ if (file->parent == 0)
+ l->next = &global_setlist;
+ else
+ {
+ initialize_file_variables (file->parent, reading);
+ l->next = file->parent->variables;
+ }
+ l->next_is_parent = 1;
+
+ /* If we're not reading makefiles and we haven't looked yet, see if
+ we can find pattern variables for this target. */
+
+ if (!reading && !file->pat_searched)
+ {
+ struct pattern_var *p;
+
+ p = lookup_pattern_var (0, file->name);
+ if (p != 0)
+ {
+ struct variable_set_list *global = current_variable_set_list;
+
+ /* We found at least one. Set up a new variable set to accumulate
+ all the pattern variables that match this target. */
+
+ file->pat_variables = create_new_variable_set ();
+ current_variable_set_list = file->pat_variables;
+
+ do
+ {
+ /* We found one, so insert it into the set. */
+
+ struct variable *v;
+
+ if (p->variable.flavor == f_simple)
+ {
+ v = define_variable_loc (
+ p->variable.name, strlen (p->variable.name),
+ p->variable.value, p->variable.origin,
+ 0, &p->variable.fileinfo);
+
+ v->flavor = f_simple;
+ }
+ else
+ {
+ v = do_variable_definition (
+ &p->variable.fileinfo, p->variable.name,
+ p->variable.value, p->variable.origin,
+ p->variable.flavor, 1);
+ }
+
+ /* Also mark it as a per-target and copy export status. */
+ v->per_target = p->variable.per_target;
+ v->export = p->variable.export;
+ v->private_var = p->variable.private_var;
+ }
+ while ((p = lookup_pattern_var (p, file->name)) != 0);
+
+ current_variable_set_list = global;
+ }
+ file->pat_searched = 1;
+ }
+
+ /* If we have a pattern variable match, set it up. */
+
+ if (file->pat_variables != 0)
+ {
+ file->pat_variables->next = l->next;
+ file->pat_variables->next_is_parent = l->next_is_parent;
+ l->next = file->pat_variables;
+ l->next_is_parent = 0;
+ }
+}
+
+/* Pop the top set off the current variable set list,
+ and free all its storage. */
+
+struct variable_set_list *
+create_new_variable_set (void)
+{
+ register struct variable_set_list *setlist;
+ register struct variable_set *set;
+
+ set = xmalloc (sizeof (struct variable_set));
+ hash_init (&set->table, SMALL_SCOPE_VARIABLE_BUCKETS,
+ variable_hash_1, variable_hash_2, variable_hash_cmp);
+
+ setlist = (struct variable_set_list *)
+ xmalloc (sizeof (struct variable_set_list));
+ setlist->set = set;
+ setlist->next = current_variable_set_list;
+ setlist->next_is_parent = 0;
+
+ return setlist;
+}
+
+/* Create a new variable set and push it on the current setlist.
+ If we're pushing a global scope (that is, the current scope is the global
+ scope) then we need to "push" it the other way: file variable sets point
+ directly to the global_setlist so we need to replace that with the new one.
+ */
+
+struct variable_set_list *
+push_new_variable_scope (void)
+{
+ current_variable_set_list = create_new_variable_set ();
+ if (current_variable_set_list->next == &global_setlist)
+ {
+ /* It was the global, so instead of new -> &global we want to replace
+ &global with the new one and have &global -> new, with current still
+ pointing to &global */
+ struct variable_set *set = current_variable_set_list->set;
+ current_variable_set_list->set = global_setlist.set;
+ global_setlist.set = set;
+ current_variable_set_list->next = global_setlist.next;
+ global_setlist.next = current_variable_set_list;
+ current_variable_set_list = &global_setlist;
+ }
+ return (current_variable_set_list);
+}
+
+void
+pop_variable_scope (void)
+{
+ struct variable_set_list *setlist;
+ struct variable_set *set;
+
+ /* Can't call this if there's no scope to pop! */
+ assert (current_variable_set_list->next != NULL);
+
+ if (current_variable_set_list != &global_setlist)
+ {
+ /* We're not pointing to the global setlist, so pop this one. */
+ setlist = current_variable_set_list;
+ set = setlist->set;
+ current_variable_set_list = setlist->next;
+ }
+ else
+ {
+ /* This set is the one in the global_setlist, but there is another global
+ set beyond that. We want to copy that set to global_setlist, then
+ delete what used to be in global_setlist. */
+ setlist = global_setlist.next;
+ set = global_setlist.set;
+ global_setlist.set = setlist->set;
+ global_setlist.next = setlist->next;
+ global_setlist.next_is_parent = setlist->next_is_parent;
+ }
+
+ /* Free the one we no longer need. */
+ free (setlist);
+ hash_map (&set->table, free_variable_name_and_value);
+ hash_free (&set->table, 1);
+ free (set);
+}
+
+/* Merge FROM_SET into TO_SET, freeing unused storage in FROM_SET. */
+
+static void
+merge_variable_sets (struct variable_set *to_set,
+ struct variable_set *from_set)
+{
+ struct variable **from_var_slot = (struct variable **) from_set->table.ht_vec;
+ struct variable **from_var_end = from_var_slot + from_set->table.ht_size;
+
+ int inc = to_set == &global_variable_set ? 1 : 0;
+
+ for ( ; from_var_slot < from_var_end; from_var_slot++)
+ if (! HASH_VACANT (*from_var_slot))
+ {
+ struct variable *from_var = *from_var_slot;
+ struct variable **to_var_slot
+ = (struct variable **) hash_find_slot (&to_set->table, *from_var_slot);
+ if (HASH_VACANT (*to_var_slot))
+ {
+ hash_insert_at (&to_set->table, from_var, to_var_slot);
+ variable_changenum += inc;
+ }
+ else
+ {
+ /* GKM FIXME: delete in from_set->table */
+ free (from_var->value);
+ free (from_var);
+ }
+ }
+}
+
+/* Merge SETLIST1 into SETLIST0, freeing unused storage in SETLIST1. */
+
+void
+merge_variable_set_lists (struct variable_set_list **setlist0,
+ struct variable_set_list *setlist1)
+{
+ struct variable_set_list *to = *setlist0;
+ struct variable_set_list *last0 = 0;
+
+ /* If there's nothing to merge, stop now. */
+ if (!setlist1)
+ return;
+
+ /* This loop relies on the fact that all setlists terminate with the global
+ setlist (before NULL). If that's not true, arguably we SHOULD die. */
+ if (to)
+ while (setlist1 != &global_setlist && to != &global_setlist)
+ {
+ struct variable_set_list *from = setlist1;
+ setlist1 = setlist1->next;
+
+ merge_variable_sets (to->set, from->set);
+
+ last0 = to;
+ to = to->next;
+ }
+
+ if (setlist1 != &global_setlist)
+ {
+ if (last0 == 0)
+ *setlist0 = setlist1;
+ else
+ last0->next = setlist1;
+ }
+}
+
+/* Define the automatic variables, and record the addresses
+ of their structures so we can change their values quickly. */
+
+void
+define_automatic_variables (void)
+{
+ struct variable *v;
+ char buf[200];
+
+ sprintf (buf, "%u", makelevel);
+ define_variable_cname (MAKELEVEL_NAME, buf, o_env, 0);
+
+ sprintf (buf, "%s%s%s",
+ version_string,
+ (remote_description == 0 || remote_description[0] == '\0')
+ ? "" : "-",
+ (remote_description == 0 || remote_description[0] == '\0')
+ ? "" : remote_description);
+ define_variable_cname ("MAKE_VERSION", buf, o_default, 0);
+ define_variable_cname ("MAKE_HOST", make_host, o_default, 0);
+
+#ifdef __MSDOS__
+ /* Allow to specify a special shell just for Make,
+ and use $COMSPEC as the default $SHELL when appropriate. */
+ {
+ static char shell_str[] = "SHELL";
+ const int shlen = sizeof (shell_str) - 1;
+ struct variable *mshp = lookup_variable ("MAKESHELL", 9);
+ struct variable *comp = lookup_variable ("COMSPEC", 7);
+
+ /* $(MAKESHELL) overrides $(SHELL) even if -e is in effect. */
+ if (mshp)
+ (void) define_variable (shell_str, shlen,
+ mshp->value, o_env_override, 0);
+ else if (comp)
+ {
+ /* $(COMSPEC) shouldn't override $(SHELL). */
+ struct variable *shp = lookup_variable (shell_str, shlen);
+
+ if (!shp)
+ (void) define_variable (shell_str, shlen, comp->value, o_env, 0);
+ }
+ }
+#elif defined(__EMX__)
+ {
+ static char shell_str[] = "SHELL";
+ const int shlen = sizeof (shell_str) - 1;
+ struct variable *shell = lookup_variable (shell_str, shlen);
+ struct variable *replace = lookup_variable ("MAKESHELL", 9);
+
+ /* if $MAKESHELL is defined in the environment assume o_env_override */
+ if (replace && *replace->value && replace->origin == o_env)
+ replace->origin = o_env_override;
+
+ /* if $MAKESHELL is not defined use $SHELL but only if the variable
+ did not come from the environment */
+ if (!replace || !*replace->value)
+ if (shell && *shell->value && (shell->origin == o_env
+ || shell->origin == o_env_override))
+ {
+ /* overwrite whatever we got from the environment */
+ free (shell->value);
+ shell->value = xstrdup (default_shell);
+ shell->origin = o_default;
+ }
+
+ /* Some people do not like cmd to be used as the default
+ if $SHELL is not defined in the Makefile.
+ With -DNO_CMD_DEFAULT you can turn off this behaviour */
+# ifndef NO_CMD_DEFAULT
+ /* otherwise use $COMSPEC */
+ if (!replace || !*replace->value)
+ replace = lookup_variable ("COMSPEC", 7);
+
+ /* otherwise use $OS2_SHELL */
+ if (!replace || !*replace->value)
+ replace = lookup_variable ("OS2_SHELL", 9);
+# else
+# warning NO_CMD_DEFAULT: GNU make will not use CMD.EXE as default shell
+# endif
+
+ if (replace && *replace->value)
+ /* overwrite $SHELL */
+ (void) define_variable (shell_str, shlen, replace->value,
+ replace->origin, 0);
+ else
+ /* provide a definition if there is none */
+ (void) define_variable (shell_str, shlen, default_shell,
+ o_default, 0);
+ }
+
+#endif
+
+ /* This won't override any definition, but it will provide one if there
+ isn't one there. */
+ v = define_variable_cname ("SHELL", default_shell, o_default, 0);
+#ifdef __MSDOS__
+ v->export = v_export; /* Export always SHELL. */
+#endif
+
+ /* On MSDOS we do use SHELL from environment, since it isn't a standard
+ environment variable on MSDOS, so whoever sets it, does that on purpose.
+ On OS/2 we do not use SHELL from environment but we have already handled
+ that problem above. */
+#if !defined(__MSDOS__) && !defined(__EMX__)
+ /* Don't let SHELL come from the environment. */
+ if (*v->value == '\0' || v->origin == o_env || v->origin == o_env_override)
+ {
+ free (v->value);
+ v->origin = o_file;
+ v->value = xstrdup (default_shell);
+ }
+#endif
+
+ /* Make sure MAKEFILES gets exported if it is set. */
+ v = define_variable_cname ("MAKEFILES", "", o_default, 0);
+ v->export = v_ifset;
+
+ /* Define the magic D and F variables in terms of
+ the automatic variables they are variations of. */
+
+#if defined(__MSDOS__) || defined(WINDOWS32)
+ /* For consistency, remove the trailing backslash as well as slash. */
+ define_variable_cname ("@D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $@)))",
+ o_automatic, 1);
+ define_variable_cname ("%D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $%)))",
+ o_automatic, 1);
+ define_variable_cname ("*D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $*)))",
+ o_automatic, 1);
+ define_variable_cname ("<D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $<)))",
+ o_automatic, 1);
+ define_variable_cname ("?D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $?)))",
+ o_automatic, 1);
+ define_variable_cname ("^D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $^)))",
+ o_automatic, 1);
+ define_variable_cname ("+D", "$(patsubst %/,%,$(patsubst %\\,%,$(dir $+)))",
+ o_automatic, 1);
+#else /* not __MSDOS__, not WINDOWS32 */
+ define_variable_cname ("@D", "$(patsubst %/,%,$(dir $@))", o_automatic, 1);
+ define_variable_cname ("%D", "$(patsubst %/,%,$(dir $%))", o_automatic, 1);
+ define_variable_cname ("*D", "$(patsubst %/,%,$(dir $*))", o_automatic, 1);
+ define_variable_cname ("<D", "$(patsubst %/,%,$(dir $<))", o_automatic, 1);
+ define_variable_cname ("?D", "$(patsubst %/,%,$(dir $?))", o_automatic, 1);
+ define_variable_cname ("^D", "$(patsubst %/,%,$(dir $^))", o_automatic, 1);
+ define_variable_cname ("+D", "$(patsubst %/,%,$(dir $+))", o_automatic, 1);
+#endif
+ define_variable_cname ("@F", "$(notdir $@)", o_automatic, 1);
+ define_variable_cname ("%F", "$(notdir $%)", o_automatic, 1);
+ define_variable_cname ("*F", "$(notdir $*)", o_automatic, 1);
+ define_variable_cname ("<F", "$(notdir $<)", o_automatic, 1);
+ define_variable_cname ("?F", "$(notdir $?)", o_automatic, 1);
+ define_variable_cname ("^F", "$(notdir $^)", o_automatic, 1);
+ define_variable_cname ("+F", "$(notdir $+)", o_automatic, 1);
+}
+
+int export_all_variables;
+
+/* Create a new environment for FILE's commands.
+ If FILE is nil, this is for the 'shell' function.
+ The child's MAKELEVEL variable is incremented. */
+
+char **
+target_environment (struct file *file)
+{
+ struct variable_set_list *set_list;
+ register struct variable_set_list *s;
+ struct hash_table table;
+ struct variable **v_slot;
+ struct variable **v_end;
+ struct variable makelevel_key;
+ char **result_0;
+ char **result;
+
+ if (file == 0)
+ set_list = current_variable_set_list;
+ else
+ set_list = file->variables;
+
+ hash_init (&table, VARIABLE_BUCKETS,
+ variable_hash_1, variable_hash_2, variable_hash_cmp);
+
+ /* Run through all the variable sets in the list,
+ accumulating variables in TABLE. */
+ for (s = set_list; s != 0; s = s->next)
+ {
+ struct variable_set *set = s->set;
+ v_slot = (struct variable **) set->table.ht_vec;
+ v_end = v_slot + set->table.ht_size;
+ for ( ; v_slot < v_end; v_slot++)
+ if (! HASH_VACANT (*v_slot))
+ {
+ struct variable **new_slot;
+ struct variable *v = *v_slot;
+
+ /* If this is a per-target variable and it hasn't been touched
+ already then look up the global version and take its export
+ value. */
+ if (v->per_target && v->export == v_default)
+ {
+ struct variable *gv;
+
+ gv = lookup_variable_in_set (v->name, strlen (v->name),
+ &global_variable_set);
+ if (gv)
+ v->export = gv->export;
+ }
+
+ switch (v->export)
+ {
+ case v_default:
+ if (v->origin == o_default || v->origin == o_automatic)
+ /* Only export default variables by explicit request. */
+ continue;
+
+ /* The variable doesn't have a name that can be exported. */
+ if (! v->exportable)
+ continue;
+
+ if (! export_all_variables
+ && v->origin != o_command
+ && v->origin != o_env && v->origin != o_env_override)
+ continue;
+ break;
+
+ case v_export:
+ break;
+
+ case v_noexport:
+ {
+ /* If this is the SHELL variable and it's not exported,
+ then add the value from our original environment, if
+ the original environment defined a value for SHELL. */
+ if (streq (v->name, "SHELL") && shell_var.value)
+ {
+ v = &shell_var;
+ break;
+ }
+ continue;
+ }
+
+ case v_ifset:
+ if (v->origin == o_default)
+ continue;
+ break;
+ }
+
+ new_slot = (struct variable **) hash_find_slot (&table, v);
+ if (HASH_VACANT (*new_slot))
+ hash_insert_at (&table, v, new_slot);
+ }
+ }
+
+ makelevel_key.name = (char *)MAKELEVEL_NAME;
+ makelevel_key.length = MAKELEVEL_LENGTH;
+ hash_delete (&table, &makelevel_key);
+
+ result = result_0 = xmalloc ((table.ht_fill + 2) * sizeof (char *));
+
+ v_slot = (struct variable **) table.ht_vec;
+ v_end = v_slot + table.ht_size;
+ for ( ; v_slot < v_end; v_slot++)
+ if (! HASH_VACANT (*v_slot))
+ {
+ struct variable *v = *v_slot;
+
+ /* If V is recursively expanded and didn't come from the environment,
+ expand its value. If it came from the environment, it should
+ go back into the environment unchanged. */
+ if (v->recursive
+ && v->origin != o_env && v->origin != o_env_override)
+ {
+ char *value = recursively_expand_for_file (v, file);
+#ifdef WINDOWS32
+ if (strcmp (v->name, "Path") == 0 ||
+ strcmp (v->name, "PATH") == 0)
+ convert_Path_to_windows32 (value, ';');
+#endif
+ *result++ = xstrdup (concat (3, v->name, "=", value));
+ free (value);
+ }
+ else
+ {
+#ifdef WINDOWS32
+ if (strcmp (v->name, "Path") == 0 ||
+ strcmp (v->name, "PATH") == 0)
+ convert_Path_to_windows32 (v->value, ';');
+#endif
+ *result++ = xstrdup (concat (3, v->name, "=", v->value));
+ }
+ }
+
+ *result = xmalloc (100);
+ sprintf (*result, "%s=%u", MAKELEVEL_NAME, makelevel + 1);
+ *++result = 0;
+
+ hash_free (&table, 0);
+
+ return result_0;
+}
+
+static struct variable *
+set_special_var (struct variable *var)
+{
+ if (streq (var->name, RECIPEPREFIX_NAME))
+ {
+ /* The user is resetting the command introduction prefix. This has to
+ happen immediately, so that subsequent rules are interpreted
+ properly. */
+ cmd_prefix = var->value[0]=='\0' ? RECIPEPREFIX_DEFAULT : var->value[0];
+ }
+
+ return var;
+}
+
+/* Given a string, shell-execute it and return a malloc'ed string of the
+ * result. This removes only ONE newline (if any) at the end, for maximum
+ * compatibility with the *BSD makes. If it fails, returns NULL. */
+
+static char *
+shell_result (const char *p)
+{
+ char *buf;
+ unsigned int len;
+ char *args[2];
+ char *result;
+
+ install_variable_buffer (&buf, &len);
+
+ args[0] = (char *) p;
+ args[1] = NULL;
+ variable_buffer_output (func_shell_base (variable_buffer, args, 0), "\0", 1);
+ result = strdup (variable_buffer);
+
+ restore_variable_buffer (buf, len);
+ return result;
+}
+
+/* Given a variable, a value, and a flavor, define the variable.
+ See the try_variable_definition() function for details on the parameters. */
+
+struct variable *
+do_variable_definition (const floc *flocp, const char *varname,
+ const char *value, enum variable_origin origin,
+ enum variable_flavor flavor, int target_var)
+{
+ const char *p;
+ char *alloc_value = NULL;
+ struct variable *v;
+ int append = 0;
+ int conditional = 0;
+
+ /* Calculate the variable's new value in VALUE. */
+
+ switch (flavor)
+ {
+ default:
+ case f_bogus:
+ /* Should not be possible. */
+ abort ();
+ case f_simple:
+ /* A simple variable definition "var := value". Expand the value.
+ We have to allocate memory since otherwise it'll clobber the
+ variable buffer, and we may still need that if we're looking at a
+ target-specific variable. */
+ p = alloc_value = allocated_variable_expand (value);
+ break;
+ case f_shell:
+ {
+ /* A shell definition "var != value". Expand value, pass it to
+ the shell, and store the result in recursively-expanded var. */
+ char *q = allocated_variable_expand (value);
+ p = alloc_value = shell_result (q);
+ free (q);
+ flavor = f_recursive;
+ break;
+ }
+ case f_conditional:
+ /* A conditional variable definition "var ?= value".
+ The value is set IFF the variable is not defined yet. */
+ v = lookup_variable (varname, strlen (varname));
+ if (v)
+ return v->special ? set_special_var (v) : v;
+
+ conditional = 1;
+ flavor = f_recursive;
+ /* FALLTHROUGH */
+ case f_recursive:
+ /* A recursive variable definition "var = value".
+ The value is used verbatim. */
+ p = value;
+ break;
+ case f_append:
+ {
+ /* If we have += but we're in a target variable context, we want to
+ append only with other variables in the context of this target. */
+ if (target_var)
+ {
+ append = 1;
+ v = lookup_variable_in_set (varname, strlen (varname),
+ current_variable_set_list->set);
+
+ /* Don't append from the global set if a previous non-appending
+ target-specific variable definition exists. */
+ if (v && !v->append)
+ append = 0;
+ }
+ else
+ v = lookup_variable (varname, strlen (varname));
+
+ if (v == 0)
+ {
+ /* There was no old value.
+ This becomes a normal recursive definition. */
+ p = value;
+ flavor = f_recursive;
+ }
+ else
+ {
+ /* Paste the old and new values together in VALUE. */
+
+ unsigned int oldlen, vallen;
+ const char *val;
+ char *tp = NULL;
+
+ val = value;
+ if (v->recursive)
+ /* The previous definition of the variable was recursive.
+ The new value is the unexpanded old and new values. */
+ flavor = f_recursive;
+ else
+ /* The previous definition of the variable was simple.
+ The new value comes from the old value, which was expanded
+ when it was set; and from the expanded new value. Allocate
+ memory for the expansion as we may still need the rest of the
+ buffer if we're looking at a target-specific variable. */
+ val = tp = allocated_variable_expand (val);
+
+ oldlen = strlen (v->value);
+ vallen = strlen (val);
+ p = alloc_value = xmalloc (oldlen + 1 + vallen + 1);
+ memcpy (alloc_value, v->value, oldlen);
+ alloc_value[oldlen] = ' ';
+ memcpy (&alloc_value[oldlen + 1], val, vallen + 1);
+
+ free (tp);
+ }
+ }
+ }
+
+#ifdef __MSDOS__
+ /* Many Unix Makefiles include a line saying "SHELL=/bin/sh", but
+ non-Unix systems don't conform to this default configuration (in
+ fact, most of them don't even have '/bin'). On the other hand,
+ $SHELL in the environment, if set, points to the real pathname of
+ the shell.
+ Therefore, we generally won't let lines like "SHELL=/bin/sh" from
+ the Makefile override $SHELL from the environment. But first, we
+ look for the basename of the shell in the directory where SHELL=
+ points, and along the $PATH; if it is found in any of these places,
+ we define $SHELL to be the actual pathname of the shell. Thus, if
+ you have bash.exe installed as d:/unix/bash.exe, and d:/unix is on
+ your $PATH, then SHELL=/usr/local/bin/bash will have the effect of
+ defining SHELL to be "d:/unix/bash.exe". */
+ if ((origin == o_file || origin == o_override)
+ && strcmp (varname, "SHELL") == 0)
+ {
+ PATH_VAR (shellpath);
+ extern char * __dosexec_find_on_path (const char *, char *[], char *);
+
+ /* See if we can find "/bin/sh.exe", "/bin/sh.com", etc. */
+ if (__dosexec_find_on_path (p, NULL, shellpath))
+ {
+ char *tp;
+
+ for (tp = shellpath; *tp; tp++)
+ if (*tp == '\\')
+ *tp = '/';
+
+ v = define_variable_loc (varname, strlen (varname),
+ shellpath, origin, flavor == f_recursive,
+ flocp);
+ }
+ else
+ {
+ const char *shellbase, *bslash;
+ struct variable *pathv = lookup_variable ("PATH", 4);
+ char *path_string;
+ char *fake_env[2];
+ size_t pathlen = 0;
+
+ shellbase = strrchr (p, '/');
+ bslash = strrchr (p, '\\');
+ if (!shellbase || bslash > shellbase)
+ shellbase = bslash;
+ if (!shellbase && p[1] == ':')
+ shellbase = p + 1;
+ if (shellbase)
+ shellbase++;
+ else
+ shellbase = p;
+
+ /* Search for the basename of the shell (with standard
+ executable extensions) along the $PATH. */
+ if (pathv)
+ pathlen = strlen (pathv->value);
+ path_string = xmalloc (5 + pathlen + 2 + 1);
+ /* On MSDOS, current directory is considered as part of $PATH. */
+ sprintf (path_string, "PATH=.;%s", pathv ? pathv->value : "");
+ fake_env[0] = path_string;
+ fake_env[1] = 0;
+ if (__dosexec_find_on_path (shellbase, fake_env, shellpath))
+ {
+ char *tp;
+
+ for (tp = shellpath; *tp; tp++)
+ if (*tp == '\\')
+ *tp = '/';
+
+ v = define_variable_loc (varname, strlen (varname),
+ shellpath, origin,
+ flavor == f_recursive, flocp);
+ }
+ else
+ v = lookup_variable (varname, strlen (varname));
+
+ free (path_string);
+ }
+ }
+ else
+#endif /* __MSDOS__ */
+#ifdef WINDOWS32
+ if ((origin == o_file || origin == o_override || origin == o_command)
+ && streq (varname, "SHELL"))
+ {
+ extern const char *default_shell;
+
+ /* Call shell locator function. If it returns TRUE, then
+ set no_default_sh_exe to indicate sh was found and
+ set new value for SHELL variable. */
+
+ if (find_and_set_default_shell (p))
+ {
+ v = define_variable_in_set (varname, strlen (varname), default_shell,
+ origin, flavor == f_recursive,
+ (target_var
+ ? current_variable_set_list->set
+ : NULL),
+ flocp);
+ no_default_sh_exe = 0;
+ }
+ else
+ {
+ char *tp = alloc_value;
+
+ alloc_value = allocated_variable_expand (p);
+
+ if (find_and_set_default_shell (alloc_value))
+ {
+ v = define_variable_in_set (varname, strlen (varname), p,
+ origin, flavor == f_recursive,
+ (target_var
+ ? current_variable_set_list->set
+ : NULL),
+ flocp);
+ no_default_sh_exe = 0;
+ }
+ else
+ v = lookup_variable (varname, strlen (varname));
+
+ free (tp);
+ }
+ }
+ else
+#endif
+
+ /* If we are defining variables inside an $(eval ...), we might have a
+ different variable context pushed, not the global context (maybe we're
+ inside a $(call ...) or something. Since this function is only ever
+ invoked in places where we want to define globally visible variables,
+ make sure we define this variable in the global set. */
+
+ v = define_variable_in_set (varname, strlen (varname), p,
+ origin, flavor == f_recursive,
+ (target_var
+ ? current_variable_set_list->set : NULL),
+ flocp);
+ v->append = append;
+ v->conditional = conditional;
+
+ free (alloc_value);
+
+ return v->special ? set_special_var (v) : v;
+}
+
+/* Parse P (a null-terminated string) as a variable definition.
+
+ If it is not a variable definition, return NULL and the contents of *VAR
+ are undefined, except NAME is set to the first non-space character or NIL.
+
+ If it is a variable definition, return a pointer to the char after the
+ assignment token and set the following fields (only) of *VAR:
+ name : name of the variable (ALWAYS SET) (NOT NUL-TERMINATED!)
+ length : length of the variable name
+ value : value of the variable (nul-terminated)
+ flavor : flavor of the variable
+ Other values in *VAR are unchanged.
+ */
+
+char *
+parse_variable_definition (const char *p, struct variable *var)
+{
+ int wspace = 0;
+ const char *e = NULL;
+
+ NEXT_TOKEN (p);
+ var->name = (char *)p;
+ var->length = 0;
+
+ while (1)
+ {
+ int c = *p++;
+
+ /* If we find a comment or EOS, it's not a variable definition. */
+ if (STOP_SET (c, MAP_COMMENT|MAP_NUL))
+ return NULL;
+
+ if (c == '$')
+ {
+ /* This begins a variable expansion reference. Make sure we don't
+ treat chars inside the reference as assignment tokens. */
+ char closeparen;
+ unsigned int count;
+
+ c = *p++;
+ if (c == '(')
+ closeparen = ')';
+ else if (c == '{')
+ closeparen = '}';
+ else if (c == '\0')
+ return NULL;
+ else
+ /* '$$' or '$X'. Either way, nothing special to do here. */
+ continue;
+
+ /* P now points past the opening paren or brace.
+ Count parens or braces until it is matched. */
+ for (count = 1; *p != '\0'; ++p)
+ {
+ if (*p == closeparen && --count == 0)
+ {
+ ++p;
+ break;
+ }
+ if (*p == c)
+ ++count;
+ }
+ continue;
+ }
+
+ /* If we find whitespace skip it, and remember we found it. */
+ if (ISBLANK (c))
+ {
+ wspace = 1;
+ e = p - 1;
+ NEXT_TOKEN (p);
+ c = *p;
+ if (c == '\0')
+ return NULL;
+ ++p;
+ }
+
+
+ if (c == '=')
+ {
+ var->flavor = f_recursive;
+ if (! e)
+ e = p - 1;
+ break;
+ }
+
+ /* Match assignment variants (:=, +=, ?=, !=) */
+ if (*p == '=')
+ {
+ switch (c)
+ {
+ case ':':
+ var->flavor = f_simple;
+ break;
+ case '+':
+ var->flavor = f_append;
+ break;
+ case '?':
+ var->flavor = f_conditional;
+ break;
+ case '!':
+ var->flavor = f_shell;
+ break;
+ default:
+ /* If we skipped whitespace, non-assignments means no var. */
+ if (wspace)
+ return NULL;
+
+ /* Might be assignment, or might be $= or #=. Check. */
+ continue;
+ }
+ if (! e)
+ e = p - 1;
+ ++p;
+ break;
+ }
+
+ /* Check for POSIX ::= syntax */
+ if (c == ':')
+ {
+ /* A colon other than :=/::= is not a variable defn. */
+ if (*p != ':' || p[1] != '=')
+ return NULL;
+
+ /* POSIX allows ::= to be the same as GNU make's := */
+ var->flavor = f_simple;
+ if (! e)
+ e = p - 1;
+ p += 2;
+ break;
+ }
+
+ /* If we skipped whitespace, non-assignments means no var. */
+ if (wspace)
+ return NULL;
+ }
+
+ var->length = e - var->name;
+ var->value = next_token (p);
+ return (char *)p;
+}
+
+/* Try to interpret LINE (a null-terminated string) as a variable definition.
+
+ If LINE was recognized as a variable definition, a pointer to its 'struct
+ variable' is returned. If LINE is not a variable definition, NULL is
+ returned. */
+
+struct variable *
+assign_variable_definition (struct variable *v, const char *line)
+{
+ char *name;
+
+ if (!parse_variable_definition (line, v))
+ return NULL;
+
+ /* Expand the name, so "$(foo)bar = baz" works. */
+ name = alloca (v->length + 1);
+ memcpy (name, v->name, v->length);
+ name[v->length] = '\0';
+ v->name = allocated_variable_expand (name);
+
+ if (v->name[0] == '\0')
+ O (fatal, &v->fileinfo, _("empty variable name"));
+
+ return v;
+}
+
+/* Try to interpret LINE (a null-terminated string) as a variable definition.
+
+ ORIGIN may be o_file, o_override, o_env, o_env_override,
+ or o_command specifying that the variable definition comes
+ from a makefile, an override directive, the environment with
+ or without the -e switch, or the command line.
+
+ See the comments for assign_variable_definition().
+
+ If LINE was recognized as a variable definition, a pointer to its 'struct
+ variable' is returned. If LINE is not a variable definition, NULL is
+ returned. */
+
+struct variable *
+try_variable_definition (const floc *flocp, const char *line,
+ enum variable_origin origin, int target_var)
+{
+ struct variable v;
+ struct variable *vp;
+
+ if (flocp != 0)
+ v.fileinfo = *flocp;
+ else
+ v.fileinfo.filenm = 0;
+
+ if (!assign_variable_definition (&v, line))
+ return 0;
+
+ vp = do_variable_definition (flocp, v.name, v.value,
+ origin, v.flavor, target_var);
+
+ free (v.name);
+
+ return vp;
+}
+
+/* Print information for variable V, prefixing it with PREFIX. */
+
+static void
+print_variable (const void *item, void *arg)
+{
+ const struct variable *v = item;
+ const char *prefix = arg;
+ const char *origin;
+
+ switch (v->origin)
+ {
+ case o_automatic:
+ origin = _("automatic");
+ break;
+ case o_default:
+ origin = _("default");
+ break;
+ case o_env:
+ origin = _("environment");
+ break;
+ case o_file:
+ origin = _("makefile");
+ break;
+ case o_env_override:
+ origin = _("environment under -e");
+ break;
+ case o_command:
+ origin = _("command line");
+ break;
+ case o_override:
+ origin = _("'override' directive");
+ break;
+ case o_invalid:
+ default:
+ abort ();
+ }
+ fputs ("# ", stdout);
+ fputs (origin, stdout);
+ if (v->private_var)
+ fputs (" private", stdout);
+ if (v->fileinfo.filenm)
+ printf (_(" (from '%s', line %lu)"),
+ v->fileinfo.filenm, v->fileinfo.lineno + v->fileinfo.offset);
+ putchar ('\n');
+ fputs (prefix, stdout);
+
+ /* Is this a 'define'? */
+ if (v->recursive && strchr (v->value, '\n') != 0)
+ printf ("define %s\n%s\nendef\n", v->name, v->value);
+ else
+ {
+ char *p;
+
+ printf ("%s %s= ", v->name, v->recursive ? v->append ? "+" : "" : ":");
+
+ /* Check if the value is just whitespace. */
+ p = next_token (v->value);
+ if (p != v->value && *p == '\0')
+ /* All whitespace. */
+ printf ("$(subst ,,%s)", v->value);
+ else if (v->recursive)
+ fputs (v->value, stdout);
+ else
+ /* Double up dollar signs. */
+ for (p = v->value; *p != '\0'; ++p)
+ {
+ if (*p == '$')
+ putchar ('$');
+ putchar (*p);
+ }
+ putchar ('\n');
+ }
+}
+
+
+static void
+print_auto_variable (const void *item, void *arg)
+{
+ const struct variable *v = item;
+
+ if (v->origin == o_automatic)
+ print_variable (item, arg);
+}
+
+
+static void
+print_noauto_variable (const void *item, void *arg)
+{
+ const struct variable *v = item;
+
+ if (v->origin != o_automatic)
+ print_variable (item, arg);
+}
+
+
+/* Print all the variables in SET. PREFIX is printed before
+ the actual variable definitions (everything else is comments). */
+
+static void
+print_variable_set (struct variable_set *set, const char *prefix, int pauto)
+{
+ hash_map_arg (&set->table, (pauto ? print_auto_variable : print_variable),
+ (void *)prefix);
+
+ fputs (_("# variable set hash-table stats:\n"), stdout);
+ fputs ("# ", stdout);
+ hash_print_stats (&set->table, stdout);
+ putc ('\n', stdout);
+}
+
+/* Print the data base of variables. */
+
+void
+print_variable_data_base (void)
+{
+ puts (_("\n# Variables\n"));
+
+ print_variable_set (&global_variable_set, "", 0);
+
+ puts (_("\n# Pattern-specific Variable Values"));
+
+ {
+ struct pattern_var *p;
+ unsigned int rules = 0;
+
+ for (p = pattern_vars; p != 0; p = p->next)
+ {
+ ++rules;
+ printf ("\n%s :\n", p->target);
+ print_variable (&p->variable, (void *)"# ");
+ }
+
+ if (rules == 0)
+ puts (_("\n# No pattern-specific variable values."));
+ else
+ printf (_("\n# %u pattern-specific variable values"), rules);
+ }
+}
+
+
+/* Print all the local variables of FILE. */
+
+void
+print_file_variables (const struct file *file)
+{
+ if (file->variables != 0)
+ print_variable_set (file->variables->set, "# ", 1);
+}
+
+void
+print_target_variables (const struct file *file)
+{
+ if (file->variables != 0)
+ {
+ int l = strlen (file->name);
+ char *t = alloca (l + 3);
+
+ strcpy (t, file->name);
+ t[l] = ':';
+ t[l+1] = ' ';
+ t[l+2] = '\0';
+
+ hash_map_arg (&file->variables->set->table, print_noauto_variable, t);
+ }
+}
+
+#ifdef WINDOWS32
+void
+sync_Path_environment (void)
+{
+ char *path = allocated_variable_expand ("$(PATH)");
+ static char *environ_path = NULL;
+
+ if (!path)
+ return;
+
+ /* If done this before, free the previous entry before allocating new one. */
+ free (environ_path);
+
+ /* Create something WINDOWS32 world can grok. */
+ convert_Path_to_windows32 (path, ';');
+ environ_path = xstrdup (concat (3, "PATH", "=", path));
+ putenv (environ_path);
+ free (path);
+}
+#endif
diff --git a/variable.h b/variable.h
new file mode 100644
index 0000000..fe1d609
--- /dev/null
+++ b/variable.h
@@ -0,0 +1,236 @@
+/* Definitions for using variables in GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "hash.h"
+
+/* Codes in a variable definition saying where the definition came from.
+ Increasing numeric values signify less-overridable definitions. */
+enum variable_origin
+ {
+ o_default, /* Variable from the default set. */
+ o_env, /* Variable from environment. */
+ o_file, /* Variable given in a makefile. */
+ o_env_override, /* Variable from environment, if -e. */
+ o_command, /* Variable given by user. */
+ o_override, /* Variable from an 'override' directive. */
+ o_automatic, /* Automatic variable -- cannot be set. */
+ o_invalid /* Core dump time. */
+ };
+
+enum variable_flavor
+ {
+ f_bogus, /* Bogus (error) */
+ f_simple, /* Simple definition (:= or ::=) */
+ f_recursive, /* Recursive definition (=) */
+ f_append, /* Appending definition (+=) */
+ f_conditional, /* Conditional definition (?=) */
+ f_shell /* Shell assignment (!=) */
+ };
+
+/* Structure that represents one variable definition.
+ Each bucket of the hash table is a chain of these,
+ chained through 'next'. */
+
+#define EXP_COUNT_BITS 15 /* This gets all the bitfields into 32 bits */
+#define EXP_COUNT_MAX ((1<<EXP_COUNT_BITS)-1)
+
+struct variable
+ {
+ char *name; /* Variable name. */
+ char *value; /* Variable value. */
+ floc fileinfo; /* Where the variable was defined. */
+ int length; /* strlen (name) */
+ unsigned int recursive:1; /* Gets recursively re-evaluated. */
+ unsigned int append:1; /* Nonzero if an appending target-specific
+ variable. */
+ unsigned int conditional:1; /* Nonzero if set with a ?=. */
+ unsigned int per_target:1; /* Nonzero if a target-specific variable. */
+ unsigned int special:1; /* Nonzero if this is a special variable. */
+ unsigned int exportable:1; /* Nonzero if the variable _could_ be
+ exported. */
+ unsigned int expanding:1; /* Nonzero if currently being expanded. */
+ unsigned int private_var:1; /* Nonzero avoids inheritance of this
+ target-specific variable. */
+ unsigned int exp_count:EXP_COUNT_BITS;
+ /* If >1, allow this many self-referential
+ expansions. */
+ enum variable_flavor
+ flavor ENUM_BITFIELD (3); /* Variable flavor. */
+ enum variable_origin
+ origin ENUM_BITFIELD (3); /* Variable origin. */
+ enum variable_export
+ {
+ v_export, /* Export this variable. */
+ v_noexport, /* Don't export this variable. */
+ v_ifset, /* Export it if it has a non-default value. */
+ v_default /* Decide in target_environment. */
+ } export ENUM_BITFIELD (2);
+ };
+
+/* Structure that represents a variable set. */
+
+struct variable_set
+ {
+ struct hash_table table; /* Hash table of variables. */
+ };
+
+/* Structure that represents a list of variable sets. */
+
+struct variable_set_list
+ {
+ struct variable_set_list *next; /* Link in the chain. */
+ struct variable_set *set; /* Variable set. */
+ int next_is_parent; /* True if next is a parent target. */
+ };
+
+/* Structure used for pattern-specific variables. */
+
+struct pattern_var
+ {
+ struct pattern_var *next;
+ const char *suffix;
+ const char *target;
+ unsigned int len;
+ struct variable variable;
+ };
+
+extern char *variable_buffer;
+extern struct variable_set_list *current_variable_set_list;
+extern struct variable *default_goal_var;
+extern struct variable shell_var;
+
+/* expand.c */
+char *variable_buffer_output (char *ptr, const char *string, unsigned int length);
+char *variable_expand (const char *line);
+char *variable_expand_for_file (const char *line, struct file *file);
+char *allocated_variable_expand_for_file (const char *line, struct file *file);
+#define allocated_variable_expand(line) \
+ allocated_variable_expand_for_file (line, (struct file *) 0)
+char *expand_argument (const char *str, const char *end);
+char *variable_expand_string (char *line, const char *string, long length);
+void install_variable_buffer (char **bufp, unsigned int *lenp);
+void restore_variable_buffer (char *buf, unsigned int len);
+
+/* function.c */
+int handle_function (char **op, const char **stringp);
+int pattern_matches (const char *pattern, const char *percent, const char *str);
+char *subst_expand (char *o, const char *text, const char *subst,
+ const char *replace, unsigned int slen, unsigned int rlen,
+ int by_word);
+char *patsubst_expand_pat (char *o, const char *text, const char *pattern,
+ const char *replace, const char *pattern_percent,
+ const char *replace_percent);
+char *patsubst_expand (char *o, const char *text, char *pattern, char *replace);
+char *func_shell_base (char *o, char **argv, int trim_newlines);
+void shell_completed (int exit_code, int exit_sig);
+
+/* expand.c */
+char *recursively_expand_for_file (struct variable *v, struct file *file);
+#define recursively_expand(v) recursively_expand_for_file (v, NULL)
+
+/* variable.c */
+struct variable_set_list *create_new_variable_set (void);
+void free_variable_set (struct variable_set_list *);
+struct variable_set_list *push_new_variable_scope (void);
+void pop_variable_scope (void);
+void define_automatic_variables (void);
+void initialize_file_variables (struct file *file, int reading);
+void print_file_variables (const struct file *file);
+void print_target_variables (const struct file *file);
+void merge_variable_set_lists (struct variable_set_list **to_list,
+ struct variable_set_list *from_list);
+struct variable *do_variable_definition (const floc *flocp,
+ const char *name, const char *value,
+ enum variable_origin origin,
+ enum variable_flavor flavor,
+ int target_var);
+char *parse_variable_definition (const char *line,
+ struct variable *v);
+struct variable *assign_variable_definition (struct variable *v, const char *line);
+struct variable *try_variable_definition (const floc *flocp, const char *line,
+ enum variable_origin origin,
+ int target_var);
+void init_hash_global_variable_set (void);
+void hash_init_function_table (void);
+void define_new_function(const floc *flocp, const char *name,
+ unsigned int min, unsigned int max, unsigned int flags,
+ gmk_func_ptr func);
+struct variable *lookup_variable (const char *name, unsigned int length);
+struct variable *lookup_variable_in_set (const char *name, unsigned int length,
+ const struct variable_set *set);
+
+struct variable *define_variable_in_set (const char *name, unsigned int length,
+ const char *value,
+ enum variable_origin origin,
+ int recursive,
+ struct variable_set *set,
+ const floc *flocp);
+
+/* Define a variable in the current variable set. */
+
+#define define_variable(n,l,v,o,r) \
+ define_variable_in_set((n),(l),(v),(o),(r),\
+ current_variable_set_list->set,NILF)
+
+/* Define a variable with a constant name in the current variable set. */
+
+#define define_variable_cname(n,v,o,r) \
+ define_variable_in_set((n),(sizeof (n) - 1),(v),(o),(r),\
+ current_variable_set_list->set,NILF)
+
+/* Define a variable with a location in the current variable set. */
+
+#define define_variable_loc(n,l,v,o,r,f) \
+ define_variable_in_set((n),(l),(v),(o),(r),\
+ current_variable_set_list->set,(f))
+
+/* Define a variable with a location in the global variable set. */
+
+#define define_variable_global(n,l,v,o,r,f) \
+ define_variable_in_set((n),(l),(v),(o),(r),NULL,(f))
+
+/* Define a variable in FILE's variable set. */
+
+#define define_variable_for_file(n,l,v,o,r,f) \
+ define_variable_in_set((n),(l),(v),(o),(r),(f)->variables->set,NILF)
+
+void undefine_variable_in_set (const char *name, unsigned int length,
+ enum variable_origin origin,
+ struct variable_set *set);
+
+/* Remove variable from the current variable set. */
+
+#define undefine_variable_global(n,l,o) \
+ undefine_variable_in_set((n),(l),(o),NULL)
+
+/* Warn that NAME is an undefined variable. */
+
+#define warn_undefined(n,l) do{\
+ if (warn_undefined_variables_flag) \
+ error (reading_file, (l), \
+ _("warning: undefined variable '%.*s'"), \
+ (int)(l), (n)); \
+ }while(0)
+
+char **target_environment (struct file *file);
+
+struct pattern_var *create_pattern_var (const char *target,
+ const char *suffix);
+
+extern int export_all_variables;
+
+#define MAKELEVEL_NAME "MAKELEVEL"
+#define MAKELEVEL_LENGTH (CSTRLEN (MAKELEVEL_NAME))
diff --git a/version.c b/version.c
new file mode 100644
index 0000000..e6d822d
--- /dev/null
+++ b/version.c
@@ -0,0 +1,33 @@
+/* Record version and build host architecture for GNU make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* We use <config.h> instead of "config.h" so that a compilation
+ using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
+ (which it would do because makeint.h was found in $srcdir). */
+#include <config.h>
+
+#ifndef MAKE_HOST
+# define MAKE_HOST "unknown"
+#endif
+
+const char *version_string = VERSION;
+const char *make_host = MAKE_HOST;
+
+/*
+ Local variables:
+ version-control: never
+ End:
+ */
diff --git a/vms_exit.c b/vms_exit.c
new file mode 100644
index 0000000..b08d84d
--- /dev/null
+++ b/vms_exit.c
@@ -0,0 +1,95 @@
+/* vms_exit.c
+ *
+ * Wrapper for the VMS exit() command to tranlate UNIX codes to be
+ * encoded for POSIX, but also have VMS severity levels.
+ * The posix_exit() variant only sets a severity level for status code 1.
+ *
+ * Author: John E. Malmberg
+ */
+
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Per copyright assignment agreement with the Free Software Foundation
+ this software may be available under under other license agreements
+ and copyrights. */
+
+#include <makeint.h>
+
+#include <stsdef.h>
+void
+decc$exit (int status);
+#ifndef C_FACILITY_NO
+# define C_FACILITY_NO 0x350000
+#endif
+
+/* Lowest legal non-success VMS exit code is 8 */
+/* GNU make only defines codes 0, 1, 2 */
+/* So assume any exit code > 8 is a VMS exit code */
+
+#ifndef MAX_EXPECTED_EXIT_CODE
+# define MAX_EXPECTED_EXIT_CODE 7
+#endif
+
+/* Build a Posix Exit with VMS severity */
+void
+vms_exit (int status)
+{
+ int vms_status;
+ /* Fake the __posix_exit with severity added */
+ /* Undocumented correct way to do this. */
+ vms_status = 0;
+
+ /* The default DECC definition is not compatible with doing a POSIX_EXIT */
+ /* So fix it. */
+ if (status == EXIT_FAILURE)
+ status = MAKE_FAILURE;
+
+ /* Trivial case exit success */
+ if (status == 0)
+ decc$exit (STS$K_SUCCESS);
+
+ /* Is this a VMS status then just take it */
+ if (status > MAX_EXPECTED_EXIT_CODE)
+ {
+ /* Make sure that the message inhibit is set since message has */
+ /* already been displayed. */
+ vms_status = status | STS$M_INHIB_MSG;
+ decc$exit (vms_status);
+ }
+
+ /* Unix status codes are limited to 1 byte, so anything larger */
+ /* is a probably a VMS exit code and needs to be passed through */
+ /* A lower value can be set for a macro. */
+ /* Status 0 is always passed through as it is converted to SS$_NORMAL */
+ /* Always set the message inhibit bit */
+ vms_status = C_FACILITY_NO | 0xA000 | STS$M_INHIB_MSG;
+ vms_status |= (status << 3);
+
+ /* STS$K_ERROR is for status that stops makefile that a simple */
+ /* Rerun of the makefile will not fix. */
+
+ if (status == MAKE_FAILURE)
+ vms_status |= STS$K_ERROR;
+ else if (status == MAKE_TROUBLE)
+ {
+ /* Make trouble is for when make was told to do nothing and */
+ /* found that a target was not up to date. Since a second */
+ /* of make will produce the same condition, this is of */
+ /* Error severity */
+ vms_status |= STS$K_ERROR;
+ }
+ decc$exit (vms_status);
+}
diff --git a/vms_export_symbol.c b/vms_export_symbol.c
new file mode 100644
index 0000000..954f3f4
--- /dev/null
+++ b/vms_export_symbol.c
@@ -0,0 +1,527 @@
+/* File: vms_export_symbol.c
+ *
+ * Some programs need special environment variables deported as DCL
+ * DCL symbols.
+ */
+
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Per copyright assignment agreement with the Free Software Foundation
+ this software may be available under under other license agreements
+ and copyrights. */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <descrip.h>
+#include <stsdef.h>
+#include <ssdef.h>
+#include <unixlib.h>
+#include <libclidef.h>
+
+#pragma member_alignment save
+#pragma nomember_alignment longword
+struct item_list_3
+{
+ unsigned short len;
+ unsigned short code;
+ void * bufadr;
+ unsigned short * retlen;
+};
+
+
+#pragma member_alignment
+
+int
+LIB$GET_SYMBOL (const struct dsc$descriptor_s * symbol,
+ struct dsc$descriptor_s * value,
+ unsigned short * value_len,
+ const unsigned long * table);
+
+int
+LIB$SET_SYMBOL (const struct dsc$descriptor_s * symbol,
+ const struct dsc$descriptor_s * value,
+ const unsigned long * table);
+
+int
+LIB$DELETE_SYMBOL (const struct dsc$descriptor_s * symbol,
+ const unsigned long * table);
+
+#define MAX_DCL_SYMBOL_LEN (255)
+#if __CRTL_VER >= 70302000 && !defined(__VAX)
+# define MAX_DCL_SYMBOL_VALUE (8192)
+#else
+# define MAX_DCL_SYMBOL_VALUE (1024)
+#endif
+
+struct dcl_symbol
+{
+ struct dcl_symbol * link;
+ struct dsc$descriptor_s name_desc;
+ struct dsc$descriptor_s value_desc;
+ char name[MAX_DCL_SYMBOL_LEN + 1]; /* + 1 byte for null terminator */
+ char value[MAX_DCL_SYMBOL_VALUE +1]; /* + 1 byte for null terminator */
+ char pad[3]; /* Pad structure to longword allignment */
+};
+
+static struct dcl_symbol * vms_dcl_symbol_head = NULL;
+
+/* Restore symbol state to original condition. */
+static unsigned long
+clear_dcl_symbol (struct dcl_symbol * symbol)
+{
+
+ const unsigned long symtbl = LIB$K_CLI_LOCAL_SYM;
+ int status;
+
+ if (symbol->value_desc.dsc$w_length == (unsigned short)-1)
+ status = LIB$DELETE_SYMBOL (&symbol->name_desc, &symtbl);
+ else
+ status = LIB$SET_SYMBOL (&symbol->name_desc,
+ &symbol->value_desc, &symtbl);
+ return status;
+}
+
+
+/* Restore all exported symbols to their original conditions */
+static void
+clear_exported_symbols (void)
+{
+
+ struct dcl_symbol * symbol;
+
+ symbol = vms_dcl_symbol_head;
+
+ /* Walk the list of symbols. This is done durring exit,
+ * so no need to free memory.
+ */
+ while (symbol != NULL)
+ {
+ clear_dcl_symbol (symbol);
+ symbol = symbol->link;
+ }
+
+}
+
+
+/* Restore the symbol back to the original value
+ * symbol name is either a plain name or of the form "symbol=name" where
+ * the name portion is ignored.
+ */
+void
+vms_restore_symbol (const char * string)
+{
+
+ struct dcl_symbol * symbol;
+ char name[MAX_DCL_SYMBOL_LEN + 1];
+ int status;
+ char * value;
+ int name_len;
+
+ symbol = vms_dcl_symbol_head;
+
+ /* Isolate the name from the value */
+ value = strchr (string, '=');
+ if (value != NULL)
+ {
+ /* Copy the name from the string */
+ name_len = (value - string);
+ }
+ else
+ name_len = strlen (string);
+
+ if (name_len > MAX_DCL_SYMBOL_LEN)
+ name_len = MAX_DCL_SYMBOL_LEN;
+
+ strncpy (name, string, name_len);
+ name[name_len] = 0;
+
+ /* Walk the list of symbols. The saved symbol is not freed
+ * symbols are likely to be overwritten multiple times, so this
+ * saves time in saving them each time.
+ */
+ while (symbol != NULL)
+ {
+ int result;
+ result = strcmp (symbol->name, name);
+ if (result == 0)
+ {
+ clear_dcl_symbol (symbol);
+ break;
+ }
+ symbol = symbol->link;
+ }
+}
+
+int
+vms_export_dcl_symbol (const char * name, const char * value)
+{
+
+ struct dcl_symbol * symbol;
+ struct dcl_symbol * next;
+ struct dcl_symbol * link;
+ int found;
+ const unsigned long symtbl = LIB$K_CLI_LOCAL_SYM;
+ struct dsc$descriptor_s value_desc;
+ int string_len;
+ int status;
+ char new_value[MAX_DCL_SYMBOL_VALUE + 1];
+ char * dollarp;
+
+ next = vms_dcl_symbol_head;
+ link = vms_dcl_symbol_head;
+
+ /* Is symbol already exported? */
+ found = 0;
+ while ((found == 0) && (link != NULL))
+ {
+ int x;
+ found = !strncasecmp (link->name, name, MAX_DCL_SYMBOL_LEN);
+ if (found)
+ symbol = link;
+ next = link;
+ link = link->link;
+ }
+
+ /* New symbol, set it up */
+ if (found == 0)
+ {
+ symbol = malloc (sizeof (struct dcl_symbol));
+ if (symbol == NULL)
+ return SS$_INSFMEM;
+
+ /* Construct the symbol descriptor, used for both saving
+ * the old symbol and creating the new symbol.
+ */
+ symbol->name_desc.dsc$w_length = strlen (name);
+ if (symbol->name_desc.dsc$w_length > MAX_DCL_SYMBOL_LEN)
+ symbol->name_desc.dsc$w_length = MAX_DCL_SYMBOL_LEN;
+
+ strncpy (symbol->name, name, symbol->name_desc.dsc$w_length);
+ symbol->name[symbol->name_desc.dsc$w_length] = 0;
+ symbol->name_desc.dsc$a_pointer = symbol->name;
+ symbol->name_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ symbol->name_desc.dsc$b_class = DSC$K_CLASS_S;
+
+ /* construct the value descriptor, used only for saving
+ * the old symbol.
+ */
+ symbol->value_desc.dsc$a_pointer = symbol->value;
+ symbol->value_desc.dsc$w_length = MAX_DCL_SYMBOL_VALUE;
+ symbol->value_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ symbol->value_desc.dsc$b_class = DSC$K_CLASS_S;
+ }
+
+ if (found == 0)
+ {
+ unsigned long old_symtbl;
+ unsigned short value_len;
+
+ /* Look up the symbol */
+ status = LIB$GET_SYMBOL (&symbol->name_desc, &symbol->value_desc,
+ &value_len, &old_symtbl);
+ if (!$VMS_STATUS_SUCCESS (status))
+ value_len = (unsigned short)-1;
+ else if (old_symtbl != symtbl)
+ value_len = (unsigned short)-1;
+
+ symbol->value_desc.dsc$w_length = value_len;
+
+ /* Store it away */
+ if (value_len != (unsigned short) -1)
+ symbol->value[value_len] = 0;
+
+ /* Make sure atexit scheduled */
+ if (vms_dcl_symbol_head == NULL)
+ {
+ vms_dcl_symbol_head = symbol;
+ atexit (clear_exported_symbols);
+ }
+ else
+ {
+ /* Extend the chain */
+ next->link = symbol;
+ }
+ }
+
+ /* Create or replace a symbol */
+ value_desc.dsc$a_pointer = new_value;
+ string_len = strlen (value);
+ if (string_len > MAX_DCL_SYMBOL_VALUE)
+ string_len = MAX_DCL_SYMBOL_VALUE;
+
+ strncpy (new_value, value, string_len);
+ new_value[string_len] = 0;
+
+ /* Special handling for GNU Make. GNU Make doubles the dollar signs
+ * in environment variables read in from getenv(). Make exports symbols
+ * with the dollar signs already doubled. So all $$ must be converted
+ * back to $.
+ * If the first $ is not doubled, then do not convert at all.
+ */
+ dollarp = strchr (new_value, '$');
+ while (dollarp && dollarp[1] == '$')
+ {
+ int left;
+ dollarp++;
+ left = string_len - (dollarp - new_value - 1);
+ string_len--;
+ if (left > 0)
+ {
+ memmove (dollarp, &dollarp[1], left);
+ dollarp = strchr (&dollarp[1], '$');
+ }
+ else
+ {
+ /* Ended with $$, simple case */
+ dollarp[1] = 0;
+ break;
+ }
+ }
+ value_desc.dsc$w_length = string_len;
+ value_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ value_desc.dsc$b_class = DSC$K_CLASS_S;
+ status = LIB$SET_SYMBOL (&symbol->name_desc, &value_desc, &symtbl);
+ return status;
+}
+
+/* export a DCL symbol using a string in the same syntax as putenv */
+int
+vms_putenv_symbol (const char * string)
+{
+
+ char name[MAX_DCL_SYMBOL_LEN + 1];
+ int status;
+ char * value;
+ int name_len;
+
+ /* Isolate the name from the value */
+ value = strchr (string, '=');
+ if (value == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* Copy the name from the string */
+ name_len = (value - string);
+ if (name_len > MAX_DCL_SYMBOL_LEN)
+ name_len = MAX_DCL_SYMBOL_LEN;
+
+ strncpy (name, string, name_len);
+ name[name_len] = 0;
+
+ /* Skip past the "=" */
+ value++;
+
+ /* Export the symbol */
+ status = vms_export_dcl_symbol (name, value);
+
+ /* Convert the error to Unix format */
+ if (!$VMS_STATUS_SUCCESS (status))
+ {
+ errno = EVMSERR;
+ vaxc$errno = status;
+ return -1;
+ }
+ return 0;
+}
+
+#if __CRTL_VER >= 70301000
+# define transpath_parm transpath
+#else
+static char transpath[MAX_DCL_SYMBOL_VALUE];
+#endif
+
+/* Helper callback routine for converting Unix paths to VMS */
+static int
+to_vms_action (char * vms_spec, int flag, char * transpath_parm)
+{
+ strncpy (transpath, vms_spec, MAX_DCL_SYMBOL_VALUE - 1);
+ transpath[MAX_DCL_SYMBOL_VALUE - 1] = 0;
+ return 0;
+}
+
+#ifdef __DECC
+# pragma message save
+ /* Undocumented extra parameter use triggers a ptrmismatch warning */
+# pragma message disable ptrmismatch
+#endif
+
+/* Create a foreign command only visible to children */
+int
+create_foreign_command (const char * command, const char * image)
+{
+ char vms_command[MAX_DCL_SYMBOL_VALUE + 1];
+ int status;
+
+ vms_command[0] = '$';
+ vms_command[1] = 0;
+ if (image[0] == '/')
+ {
+#if __CRTL_VER >= 70301000
+ /* Current decc$to_vms is reentrant */
+ decc$to_vms (image, to_vms_action, 0, 1, &vms_command[1]);
+#else
+ /* Older decc$to_vms is not reentrant */
+ decc$to_vms (image, to_vms_action, 0, 1);
+ strncpy (&vms_command[1], transpath, MAX_DCL_SYMBOL_VALUE - 1);
+ vms_command[MAX_DCL_SYMBOL_VALUE] = 0;
+#endif
+ }
+ else
+ {
+ strncpy (&vms_command[1], image, MAX_DCL_SYMBOL_VALUE - 1);
+ vms_command[MAX_DCL_SYMBOL_VALUE] = 0;
+ }
+ status = vms_export_dcl_symbol (command, vms_command);
+
+ return status;
+}
+#ifdef __DECC
+# pragma message restore
+#endif
+
+
+#ifdef DEBUG
+
+int
+main(int argc, char ** argv, char **env)
+{
+
+ char value[MAX_DCL_SYMBOL_VALUE +1];
+ int status = 0;
+ int putenv_status;
+ int vms_status;
+ struct dsc$descriptor_s name_desc;
+ struct dsc$descriptor_s value_desc;
+ const unsigned long symtbl = LIB$K_CLI_LOCAL_SYM;
+ unsigned short value_len;
+ unsigned long old_symtbl;
+ int result;
+ const char * vms_command = "vms_export_symbol";
+ const char * vms_image = "test_image.exe";
+ const char * vms_symbol1 = "test_symbol1";
+ const char * value1 = "test_value1";
+ const char * vms_symbol2 = "test_symbol2";
+ const char * putenv_string = "test_symbol2=value2";
+ const char * value2 = "value2";
+
+ /* Test creating a foreign command */
+ vms_status = create_foreign_command (vms_command, vms_image);
+ if (!$VMS_STATUS_SUCCESS (vms_status))
+ {
+ printf("Create foreign command failed: %d\n", vms_status);
+ status = 1;
+ }
+
+ name_desc.dsc$a_pointer = (char *)vms_command;
+ name_desc.dsc$w_length = strlen (vms_command);
+ name_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ name_desc.dsc$b_class = DSC$K_CLASS_S;
+
+ value_desc.dsc$a_pointer = value;
+ value_desc.dsc$w_length = MAX_DCL_SYMBOL_VALUE;
+ value_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ value_desc.dsc$b_class = DSC$K_CLASS_S;
+
+ vms_status = LIB$GET_SYMBOL (&name_desc, &value_desc,
+ &value_len, &old_symtbl);
+ if (!$VMS_STATUS_SUCCESS (vms_status))
+ {
+ printf ("lib$get_symbol for command failed: %d\n", vms_status);
+ status = 1;
+ }
+
+ value[value_len] = 0;
+ result = strncasecmp (&value[1], vms_image, value_len - 1);
+ if (result != 0)
+ {
+ printf ("create_foreign_command failed! expected '%s', got '%s'\n",
+ vms_image, &value[1]);
+ status = 1;
+ }
+
+ /* Test exporting a symbol */
+ vms_status = vms_export_dcl_symbol (vms_symbol1, value1);
+ if (!$VMS_STATUS_SUCCESS (vms_status))
+ {
+ printf ("vms_export_dcl_symbol for command failed: %d\n", vms_status);
+ status = 1;
+ }
+
+ name_desc.dsc$a_pointer = (char *)vms_symbol1;
+ name_desc.dsc$w_length = strlen (vms_symbol1);
+ vms_status = LIB$GET_SYMBOL(&name_desc, &value_desc,
+ &value_len, &old_symtbl);
+ if (!$VMS_STATUS_SUCCESS(vms_status))
+ {
+ printf ("lib$get_symbol for command failed: %d\n", vms_status);
+ status = 1;
+ }
+
+ value[value_len] = 0;
+ result = strncmp (value, value1, value_len);
+ if (result != 0)
+ {
+ printf ("vms_export_dcl_symbol failed! expected '%s', got '%s'\n",
+ value1, value);
+ status = 1;
+ }
+
+ /* Test putenv for DCL symbols */
+ putenv_status = vms_putenv_symbol (putenv_string);
+ if (putenv_status != 0)
+ {
+ perror ("vms_putenv_symbol");
+ status = 1;
+ }
+
+ name_desc.dsc$a_pointer = (char *)vms_symbol2;
+ name_desc.dsc$w_length = strlen(vms_symbol2);
+ vms_status = LIB$GET_SYMBOL (&name_desc, &value_desc,
+ &value_len, &old_symtbl);
+ if (!$VMS_STATUS_SUCCESS (vms_status))
+ {
+ printf ("lib$get_symbol for command failed: %d\n", vms_status);
+ status = 1;
+ }
+
+ value[value_len] = 0;
+ result = strncmp (value, value2, value_len);
+ if (result != 0)
+ {
+ printf ("vms_putenv_symbol failed! expected '%s', got '%s'\n",
+ value2, value);
+ status = 1;
+ }
+
+ vms_restore_symbol (putenv_string);
+ vms_status = LIB$GET_SYMBOL (&name_desc, &value_desc,
+ &value_len, &old_symtbl);
+ if ($VMS_STATUS_SUCCESS (vms_status))
+ {
+ printf ("lib$get_symbol for command succeeded, should have failed\n");
+ status = 1;
+ }
+
+ exit (status);
+}
+
+#endif
diff --git a/vms_export_symbol_test.com b/vms_export_symbol_test.com
new file mode 100644
index 0000000..4345f44
--- /dev/null
+++ b/vms_export_symbol_test.com
@@ -0,0 +1,37 @@
+$! VMS_EXPORT_SYMBOL_TEST.COM
+$!
+$! Verify the VMS_EXPORT_SYMBOL.C module
+$!
+$! 22-May-2014 J. Malmberg
+$!
+$!=========================================================================
+$!
+$ cc/names=(as_is)/define=(DEBUG=1,_POSIX_EXIT=1) vms_export_symbol.c
+$!
+$ link vms_export_symbol
+$!
+$ delete vms_export_symbol.obj;*
+$!
+$! Need a foreign command to test.
+$ vms_export_symbol := $sys$disk:[]vms_export_symbol.exe
+$ save_export_symbol = vms_export_symbol
+$!
+$ vms_export_symbol
+$ if $severity .ne. 1
+$ then
+$ write sys$output "Test program failed!";
+$ endif
+$!
+$ if vms_export_symbol .nes. save_export_symbol
+$ then
+$ write sys$output "Test failed to restore foreign command!"
+$ endif
+$ if f$type(test_export_symbol) .nes. ""
+$ then
+$ write sys$output "Test failed to clear exported symbol!"
+$ endif
+$ if f$type(test_putenv_symbol) .nes. ""
+$ then
+$ write sys$output "Test failed to clear putenv exported symbol!"
+$ endif
+$!
diff --git a/vms_progname.c b/vms_progname.c
new file mode 100644
index 0000000..0665a54
--- /dev/null
+++ b/vms_progname.c
@@ -0,0 +1,463 @@
+/* File: vms_progname.c
+ *
+ * This module provides a fixup of the program name.
+ *
+ * This module is designed to be a plug in replacement for the
+ * progname module used by many GNU utilities with a few enhancements
+ * needed for GNU Make.
+ *
+ * It does not support the HAVE_DECL_PROGRAM_INVOCATION_* macros at this
+ * time.
+ *
+ * Make sure that the program_name string is set as close as possible to
+ * what the original command was given.
+ *
+ * When run from DCL, The argv[0] element is initialized with an absolute
+ * path name. The decc$ feature logical names can control the format
+ * of this pathname. In some cases it causes the UNIX format name to be
+ * formatted incorrectly.
+ *
+ * This DCL provided name is usually incompatible with what is expected to
+ * be provided by Unix programs and needs to be replaced.
+ *
+ * When run from an exec() call, the argv[0] element is initialized by the
+ * program. This name is compatible with what is expected to be provided
+ * by Unix programs and should be passed through unchanged.
+ *
+ * The DCL provided name can be detected because it always contains the
+ * device name.
+ *
+ * DCL examples:
+ * devname:[dir]program.exe;1 Normal VMS - remove path and .EXE;n
+ * devname:[dir]facility$program.exe;1 Facility also needs removal.
+ * /devname/dir/program.exe
+ * /DISK$VOLUME/dir/program.exe.1 Bug version should not be there.
+ * /DISK$VOLUME/dir/program. Bug Period should not be there.
+ *
+ */
+
+/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+/* Per copyright assignment agreement with the Free Software Foundation
+ this software may be available under under other license agreements
+ and copyrights. */
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+#include <descrip.h>
+#include <dvidef.h>
+#include <efndef.h>
+#include <fscndef.h>
+#include <stsdef.h>
+
+#ifdef USE_PROGNAME_H
+# include "progname.h"
+#endif
+
+#pragma member_alignment save
+#pragma nomember_alignment longword
+struct item_list_3
+{
+ unsigned short len;
+ unsigned short code;
+ void * bufadr;
+ unsigned short * retlen;
+};
+
+struct filescan_itmlst_2
+{
+ unsigned short length;
+ unsigned short itmcode;
+ char * component;
+};
+
+#pragma member_alignment
+
+int
+SYS$GETDVIW (unsigned long efn,
+ unsigned short chan,
+ const struct dsc$descriptor_s * devnam,
+ const struct item_list_3 * itmlst,
+ void * iosb,
+ void (* astadr)(unsigned long),
+ unsigned long astprm,
+ void * nullarg);
+
+int
+SYS$FILESCAN (const struct dsc$descriptor_s * srcstr,
+ struct filescan_itmlst_2 * valuelist,
+ unsigned long * fldflags,
+ struct dsc$descriptor_s *auxout,
+ unsigned short * retlen);
+
+/* String containing name the program is called with.
+ To be initialized by main(). */
+
+const char *program_name = NULL;
+
+static int internal_need_vms_symbol = 0;
+
+static char vms_new_nam[256];
+
+int
+need_vms_symbol (void)
+{
+ return internal_need_vms_symbol;
+}
+
+
+void
+set_program_name (const char *argv0)
+{
+ int status;
+ int result;
+
+#ifdef DEBUG
+ printf ("original argv0 = %s\n", argv0);
+#endif
+
+ /* Posix requires non-NULL argv[0] */
+ if (argv0 == NULL)
+ {
+ fputs ("A NULL argv[0] was passed through an exec system call.\n",
+ stderr);
+ abort ();
+ }
+
+ program_name = argv0;
+ result = 0;
+ internal_need_vms_symbol = 0;
+
+ /* If the path name starts with a /, then it is an absolute path */
+ /* that may have been generated by the CRTL instead of the command name */
+ /* If it is the device name between the slashes, then this was likely */
+ /* from the run command and needs to be fixed up. */
+ /* If the DECC$POSIX_COMPLIANT_PATHNAMES is set to 2, then it is the */
+ /* DISK$VOLUME that will be present, and it will still need to be fixed. */
+ if (argv0[0] == '/')
+ {
+ char * nextslash;
+ int length;
+ struct item_list_3 itemlist[3];
+ unsigned short dvi_iosb[4];
+ char alldevnam[64];
+ unsigned short alldevnam_len;
+ struct dsc$descriptor_s devname_dsc;
+ char diskvolnam[256];
+ unsigned short diskvolnam_len;
+
+ internal_need_vms_symbol = 1;
+
+ /* Get some information about the disk */
+ /*--------------------------------------*/
+ itemlist[0].len = (sizeof alldevnam) - 1;
+ itemlist[0].code = DVI$_ALLDEVNAM;
+ itemlist[0].bufadr = alldevnam;
+ itemlist[0].retlen = &alldevnam_len;
+ itemlist[1].len = (sizeof diskvolnam) - 1 - 5;
+ itemlist[1].code = DVI$_VOLNAM;
+ itemlist[1].bufadr = &diskvolnam[5];
+ itemlist[1].retlen = &diskvolnam_len;
+ itemlist[2].len = 0;
+ itemlist[2].code = 0;
+
+ /* Add the prefix for the volume name. */
+ /* SYS$GETDVI will append the volume name to this */
+ strcpy (diskvolnam, "DISK$");
+
+ nextslash = strchr (&argv0[1], '/');
+ if (nextslash != NULL)
+ {
+ length = nextslash - argv0 - 1;
+
+ /* Cast needed for HP C compiler diagnostic */
+ devname_dsc.dsc$a_pointer = (char *)&argv0[1];
+ devname_dsc.dsc$w_length = length;
+ devname_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
+ devname_dsc.dsc$b_class = DSC$K_CLASS_S;
+
+ status = SYS$GETDVIW (EFN$C_ENF, 0, &devname_dsc, itemlist,
+ dvi_iosb, NULL, 0, 0);
+ if (!$VMS_STATUS_SUCCESS (status))
+ {
+ /* If the sys$getdviw fails, then this path was passed by */
+ /* An exec() program and not from DCL, so do nothing */
+ /* An example is "/tmp/program" where tmp: does not exist */
+#ifdef DEBUG
+ printf ("sys$getdviw failed with status %d\n", status);
+#endif
+ result = 0;
+ }
+ else if (!$VMS_STATUS_SUCCESS (dvi_iosb[0]))
+ {
+#ifdef DEBUG
+ printf ("sys$getdviw failed with iosb %d\n", dvi_iosb[0]);
+#endif
+ result = 0;
+ }
+ else
+ {
+ char * devnam;
+ int devnam_len;
+ char argv_dev[64];
+
+ /* Null terminate the returned alldevnam */
+ alldevnam[alldevnam_len] = 0;
+ devnam = alldevnam;
+ devnam_len = alldevnam_len;
+
+ /* Need to skip past any leading underscore */
+ if (devnam[0] == '_')
+ {
+ devnam++;
+ devnam_len--;
+ }
+
+ /* And remove the trailing colon */
+ if (devnam[devnam_len - 1] == ':')
+ {
+ devnam_len--;
+ devnam[devnam_len] = 0;
+ }
+
+ /* Null terminate the returned volnam */
+ diskvolnam_len += 5;
+ diskvolnam[diskvolnam_len] = 0;
+
+ /* Check first for normal CRTL behavior */
+ if (devnam_len == length)
+ {
+ strncpy (vms_new_nam, &argv0[1], length);
+ vms_new_nam[length] = 0;
+ result = (strcasecmp (devnam, vms_new_nam) == 0);
+ }
+
+ /* If we have not got a match, check for POSIX Compliant */
+ /* behavior. To be more accurate, we could also check */
+ /* to see if that feature is active. */
+ if ((result == 0) && (diskvolnam_len == length))
+ {
+ strncpy (vms_new_nam, &argv0[1], length);
+ vms_new_nam[length] = 0;
+ result = (strcasecmp (diskvolnam, vms_new_nam) == 0);
+ }
+ }
+ }
+ }
+ else
+ {
+ /* The path did not start with a slash, so it could be VMS format */
+ /* If it is vms format, it has a volume/device in it as it must */
+ /* be an absolute path */
+ struct dsc$descriptor_s path_desc;
+ int status;
+ unsigned long field_flags;
+ struct filescan_itmlst_2 item_list[5];
+ char * volume;
+ char * name;
+ int name_len;
+ char * ext;
+
+ path_desc.dsc$a_pointer = (char *)argv0; /* cast ok */
+ path_desc.dsc$w_length = strlen (argv0);
+ path_desc.dsc$b_dtype = DSC$K_DTYPE_T;
+ path_desc.dsc$b_class = DSC$K_CLASS_S;
+
+ /* Don't actually need to initialize anything buf itmcode */
+ /* I just do not like uninitialized input values */
+
+ /* Sanity check, this must be the same length as input */
+ item_list[0].itmcode = FSCN$_FILESPEC;
+ item_list[0].length = 0;
+ item_list[0].component = NULL;
+
+ /* If the device is present, then it if a VMS spec */
+ item_list[1].itmcode = FSCN$_DEVICE;
+ item_list[1].length = 0;
+ item_list[1].component = NULL;
+
+ /* we need the program name and type */
+ item_list[2].itmcode = FSCN$_NAME;
+ item_list[2].length = 0;
+ item_list[2].component = NULL;
+
+ item_list[3].itmcode = FSCN$_TYPE;
+ item_list[3].length = 0;
+ item_list[3].component = NULL;
+
+ /* End the list */
+ item_list[4].itmcode = 0;
+ item_list[4].length = 0;
+ item_list[4].component = NULL;
+
+ status = SYS$FILESCAN ((const struct dsc$descriptor_s *)&path_desc,
+ item_list, &field_flags, NULL, NULL);
+
+
+ if ($VMS_STATUS_SUCCESS (status) &&
+ (item_list[0].length == path_desc.dsc$w_length) &&
+ (item_list[1].length != 0))
+ {
+
+ char * dollar;
+ int keep_ext;
+ int i;
+
+ /* We need the filescan to be successful, */
+ /* same length as input, and a volume to be present */
+ internal_need_vms_symbol = 1;
+
+ /* We will assume that we only get to this path on a version */
+ /* of VMS that does not support the EFS character set */
+
+ /* There may be a xxx$ prefix on the image name. Linux */
+ /* programs do not handle that well, so strip the prefix */
+ name = item_list[2].component;
+ name_len = item_list[2].length;
+ dollar = strrchr (name, '$');
+ if (dollar != NULL)
+ {
+ dollar++;
+ name_len = name_len - (dollar - name);
+ name = dollar;
+ }
+
+ strncpy (vms_new_nam, name, name_len);
+ vms_new_nam[name_len] = 0;
+
+ /* Commit to using the new name */
+ program_name = vms_new_nam;
+
+ /* We only keep the extension if it is not ".exe" */
+ keep_ext = 0;
+ ext = item_list[3].component;
+
+ if (item_list[3].length != 1)
+ {
+ keep_ext = 1;
+ if (item_list[3].length == 4)
+ {
+ if ((ext[1] == 'e' || ext[1] == 'E') &&
+ (ext[2] == 'x' || ext[2] == 'X') &&
+ (ext[3] == 'e' || ext[3] == 'E'))
+ keep_ext = 0;
+ }
+ }
+
+ if (keep_ext == 1)
+ strncpy (&vms_new_nam[name_len], ext, item_list[3].length);
+ }
+ }
+
+ if (result)
+ {
+ char * lastslash;
+ char * dollar;
+ char * dotexe;
+ char * lastdot;
+ char * extension;
+
+ /* This means it is probably the name from a DCL command */
+ /* Find the last slash which separates the file from the */
+ /* path. */
+ lastslash = strrchr (argv0, '/');
+
+ if (lastslash != NULL) {
+ int i;
+
+ lastslash++;
+
+ /* There may be a xxx$ prefix on the image name. Linux */
+ /* programs do not handle that well, so strip the prefix */
+ dollar = strrchr (lastslash, '$');
+
+ if (dollar != NULL) {
+ dollar++;
+ lastslash = dollar;
+ }
+
+ strcpy (vms_new_nam, lastslash);
+
+ /* In UNIX mode + EFS character set, there should not be a */
+ /* version present, as it is not possible when parsing to */
+ /* tell if it is a version or part of the UNIX filename as */
+ /* UNIX programs use numeric extensions for many reasons. */
+
+ lastdot = strrchr (vms_new_nam, '.');
+ if (lastdot != NULL) {
+ int i;
+
+ i = 1;
+ while (isdigit (lastdot[i])) {
+ i++;
+ }
+ if (lastdot[i] == 0) {
+ *lastdot = 0;
+ }
+ }
+
+ /* Find the .exe on the name (case insenstive) and toss it */
+ dotexe = strrchr (vms_new_nam, '.');
+ if (dotexe != NULL) {
+ if ((dotexe[1] == 'e' || dotexe[1] == 'E') &&
+ (dotexe[2] == 'x' || dotexe[2] == 'X') &&
+ (dotexe[3] == 'e' || dotexe[3] == 'E') &&
+ (dotexe[4] == 0)) {
+
+ *dotexe = 0;
+ } else {
+ /* Also need to handle a null extension because of a */
+ /* CRTL bug. */
+ if (dotexe[1] == 0) {
+ *dotexe = 0;
+ }
+ }
+ }
+
+ /* Commit to new name */
+ program_name = vms_new_nam;
+
+ } else {
+ /* There is no way that the code should ever get here */
+ /* As we already verified that the '/' was present */
+ fprintf (stderr, "Sanity failure somewhere we lost a '/'\n");
+ }
+ }
+}
+
+#ifdef DEBUG
+
+int
+main (int argc, char ** argv, char **env)
+{
+
+ char command[1024];
+
+ set_program_name (argv[0]);
+
+ printf ("modified argv[0] = %s\n", program_name);
+
+ return 0;
+}
+#endif
diff --git a/vmsdir.h b/vmsdir.h
new file mode 100644
index 0000000..814b89d
--- /dev/null
+++ b/vmsdir.h
@@ -0,0 +1,76 @@
+/* dirent.h for vms
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef VMSDIR_H
+#define VMSDIR_H
+
+#include <rms.h>
+
+#define MAXNAMLEN 255
+
+#ifndef __DECC
+#if !defined (__GNUC__) && !defined (__ALPHA)
+typedef unsigned long u_long;
+typedef unsigned short u_short;
+#endif
+#endif
+
+struct direct
+{
+ off_t d_off;
+ u_long d_fileno;
+ u_short d_reclen;
+ u_short d_namlen;
+ char d_name[MAXNAMLEN + 1];
+};
+
+#undef DIRSIZ
+#define DIRSIZ(dp) \
+ (((sizeof (struct direct) \
+ - (MAXNAMLEN+1) \
+ + ((dp)->d_namlen+1)) \
+ + 3) & ~3)
+
+#define d_ino d_fileno /* compatibility */
+
+
+/*
+ * Definitions for library routines operating on directories.
+ */
+
+typedef struct DIR
+{
+ struct direct dir;
+ char d_result[MAXNAMLEN + 1];
+#if defined (__ALPHA) || defined (__DECC)
+ struct FAB fab;
+#else
+ struct fabdef fab;
+#endif
+} DIR;
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#define rewinddir(dirp) seekdir((dirp), (long)0)
+
+DIR *opendir ();
+struct direct *readdir (DIR *dfd);
+int closedir (DIR *dfd);
+const char *vmsify (const char *name, int type);
+
+#endif /* VMSDIR_H */
diff --git a/vmsfunctions.c b/vmsfunctions.c
new file mode 100644
index 0000000..e422d48
--- /dev/null
+++ b/vmsfunctions.c
@@ -0,0 +1,226 @@
+/* VMS functions
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "debug.h"
+#include "job.h"
+
+#include <ctype.h>
+#include <string.h>
+
+#ifdef __DECC
+#include <starlet.h>
+#endif
+
+#include <rms.h>
+#include "vmsdir.h"
+
+#ifdef HAVE_VMSDIR_H
+
+DIR *
+opendir (char *dspec)
+{
+ struct DIR *dir = xcalloc (sizeof (struct DIR));
+ struct NAM *dnam = xmalloc (sizeof (struct NAM));
+ struct FAB *dfab = &dir->fab;
+ char *searchspec = xmalloc (MAXNAMLEN + 1);
+
+ *dfab = cc$rms_fab;
+ *dnam = cc$rms_nam;
+ sprintf (searchspec, "%s*.*;", dspec);
+
+ dfab->fab$l_fna = searchspec;
+ dfab->fab$b_fns = strlen (searchspec);
+ dfab->fab$l_nam = dnam;
+
+ *dnam = cc$rms_nam;
+ dnam->nam$l_esa = searchspec;
+ dnam->nam$b_ess = MAXNAMLEN;
+
+ if (! (sys$parse (dfab) & 1))
+ {
+ free (dir);
+ free (dnam);
+ free (searchspec);
+ return (NULL);
+ }
+
+ return dir;
+}
+
+#define uppercasify(str) \
+ do \
+ { \
+ char *tmp; \
+ for (tmp = (str); *tmp != '\0'; tmp++) \
+ if (islower ((unsigned char)*tmp)) \
+ *tmp = toupper ((unsigned char)*tmp); \
+ } \
+ while (0)
+
+struct direct *
+readdir (DIR *dir)
+{
+ struct FAB *dfab = &dir->fab;
+ struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
+ struct direct *dentry = &dir->dir;
+ int i;
+
+ memset (dentry, 0, sizeof *dentry);
+
+ dnam->nam$l_rsa = dir->d_result;
+ dnam->nam$b_rss = MAXNAMLEN;
+
+ DB (DB_VERBOSE, ("."));
+
+ if (!((i = sys$search (dfab)) & 1))
+ {
+ DB (DB_VERBOSE, (_("sys$search() failed with %d\n"), i));
+ return (NULL);
+ }
+
+ dentry->d_off = 0;
+ if (dnam->nam$w_fid == 0)
+ dentry->d_fileno = 1;
+ else
+ dentry->d_fileno = dnam->nam$w_fid[0] + (dnam->nam$w_fid[1] << 16);
+
+ dentry->d_reclen = sizeof (struct direct);
+ dentry->d_namlen = dnam->nam$b_name + dnam->nam$b_type;
+ strncpy (dentry->d_name, dnam->nam$l_name, dentry->d_namlen);
+ dentry->d_name[dentry->d_namlen] = '\0';
+
+#ifdef HAVE_CASE_INSENSITIVE_FS
+ uppercasify (dentry->d_name);
+#endif
+
+ return (dentry);
+}
+
+int
+closedir (DIR *dir)
+{
+ if (dir != NULL)
+ {
+ struct FAB *dfab = &dir->fab;
+ struct NAM *dnam = (struct NAM *)(dfab->fab$l_nam);
+ if (dnam != NULL)
+ free (dnam->nam$l_esa);
+ free (dnam);
+ free (dir);
+ }
+
+ return 0;
+}
+#endif /* compiled for OpenVMS prior to V7.x */
+
+/* Argv0 will be a full vms file specification, like
+ node$dka100:[utils.gnumake]make.exe;47
+ prefix it with "mcr " to make it a vms command, executable for DCL. */
+const char *
+vms_command(const char* argv0)
+{
+ size_t l = strlen(argv0) + 1;
+ char* s = xmalloc(l + 4);
+ memcpy(s, "mcr ", 4);
+ memcpy(s+4, argv0, l);
+ return s;
+}
+
+/* Argv0 aka argv[0] will be a full vms file specification, like
+ node$dka100:[utils.gnumake]make.exe;47, set up by the CRTL.
+ The vms progname should be ^^^^, the file name without
+ file type .exe and ;version.
+ Use sys$parse to get the name part of the file specification. That is
+ in the above example, pick up "make" and return a copy of that string.
+ If something goes wrong in sys$parse (unlikely, this is a VMS/CRTL supplied
+ file specification) or if there is an empty name part (not easy to produce,
+ but it is possible) just return "make".
+ Somes notes ...
+ NAM[L]$M_SYNCHK requests a syntax check, only.
+ NAM is for ODS2 names (shorter parts, output usually converted to UPPERCASE).
+ NAML is for ODS2/ODS5 names (longer parts, output unchanged).
+ NAM$M_NO_SHORT_UPCASE may not be available for older versions of VMS.
+ NAML is not available on older versions of VMS (NAML$C_BID not defined).
+ argv[0] on older versions of VMS (no extended parse style and no
+ CRTL feature DECC$ARGV_PARSE_STYLE) is always in lowercase. */
+const char *
+vms_progname(const char* argv0)
+{
+ int status;
+ static struct FAB fab;
+ char *progname;
+ const char *fallback = "make";
+
+#ifdef NAML$C_BID
+ static char esa[NAML$C_MAXRSS];
+ static struct NAML naml;
+#else
+ static char esa[NAM$C_MAXRSS];
+ static struct NAM nam;
+#endif
+
+ fab = cc$rms_fab;
+ fab.fab$l_fna = (char*)argv0;
+ fab.fab$b_fns = strlen(argv0);
+
+#ifdef NAML$C_BID
+ fab.fab$l_naml = &naml;
+ naml = cc$rms_naml;
+ naml.naml$l_long_expand = esa;
+ naml.naml$l_long_expand_alloc = NAML$C_MAXRSS;
+ naml.naml$b_nop = NAML$M_SYNCHK;
+ naml.naml$l_input_flags = NAML$M_NO_SHORT_OUTPUT;
+#else
+ fab.fab$l_nam = &nam;
+ nam = cc$rms_nam;
+ nam.nam$l_esa = esa;
+ nam.nam$b_ess = NAM$C_MAXRSS;
+# ifdef NAM$M_NO_SHORT_UPCASE
+ nam.nam$b_nop = NAM$M_SYNCHK | NAM$M_NO_SHORT_UPCASE;
+# else
+ nam.nam$b_nop = NAM$M_SYNCHK;
+# endif
+#endif
+
+ status = sys$parse(&fab);
+ if (!(status & 1))
+ return fallback;
+
+#ifdef NAML$C_BID
+ if (naml.naml$l_long_name_size == 0)
+ return fallback;
+ progname = xmalloc(naml.naml$l_long_name_size + 1);
+ memcpy(progname, naml.naml$l_long_name, naml.naml$l_long_name_size);
+ progname[naml.naml$l_long_name_size] = '\0';
+#else
+ if (nam.nam$b_name == 0)
+ return fallback;
+ progname = xmalloc(nam.nam$b_name + 1);
+# ifdef NAM$M_NO_SHORT_UPCASE
+ memcpy(progname, nam.nam$l_name, nam.nam$b_name);
+# else
+ {
+ int i;
+ for (i = 0; i < nam.nam$b_name; i++)
+ progname[i] = tolower(nam.nam$l_name[i]);
+ }
+# endif
+ progname[nam.nam$b_name] = '\0';
+#endif
+
+ return progname;
+}
diff --git a/vmsify.c b/vmsify.c
new file mode 100644
index 0000000..e504a09
--- /dev/null
+++ b/vmsify.c
@@ -0,0 +1,1005 @@
+/* vmsify.c -- Module for vms <-> unix file name conversion
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Klaus Kämpf (kkaempf@progis.de)
+ of proGIS Software, Aachen, Germany */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "makeint.h"
+
+#if VMS
+#include <unixlib.h>
+#include <stdlib.h>
+#include <jpidef.h>
+#include <descrip.h>
+#include <uaidef.h>
+#include <ssdef.h>
+#include <starlet.h>
+#include <lib$routines.h>
+/* Initialize a string descriptor (struct dsc$descriptor_s) for an
+ arbitrary string. ADDR is a pointer to the first character
+ of the string, and LEN is the length of the string. */
+
+#define INIT_DSC_S(dsc, addr, len) do { \
+ (dsc).dsc$b_dtype = DSC$K_DTYPE_T; \
+ (dsc).dsc$b_class = DSC$K_CLASS_S; \
+ (dsc).dsc$w_length = (len); \
+ (dsc).dsc$a_pointer = (addr); \
+} while (0)
+
+/* Initialize a string descriptor (struct dsc$descriptor_s) for a
+ NUL-terminated string. S is a pointer to the string; the length
+ is determined by calling strlen(). */
+
+#define INIT_DSC_CSTRING(dsc, s) INIT_DSC_S(dsc, s, strlen(s))
+#endif
+
+/*
+ copy 'from' to 'to' up to but not including 'upto'
+ return 0 if eos on from
+ return 1 if upto found
+
+ return 'to' at last char + 1
+ return 'from' at match + 1 or eos if no match
+
+ if as_dir == 1, change all '.' to '_'
+ else change all '.' but the last to '_'
+*/
+
+static int
+copyto (char **to, const char **from, char upto, int as_dir)
+{
+ const char *s;
+
+ s = strrchr (*from, '.');
+
+ while (**from)
+ {
+ if (**from == upto)
+ {
+ do
+ {
+ (*from)++;
+ }
+ while (**from == upto);
+ return 1;
+ }
+ if (**from == '.')
+ {
+ if ((as_dir == 1)
+ || (*from != s))
+ **to = '_';
+ else
+ **to = '.';
+ }
+ else
+ {
+#ifdef HAVE_CASE_INSENSITIVE_FS
+ if (isupper ((unsigned char)**from))
+ **to = tolower ((unsigned char)**from);
+ else
+#endif
+ **to = **from;
+ }
+ (*to)++;
+ (*from)++;
+ }
+
+ return 0;
+}
+
+
+/*
+ get translation of logical name
+
+*/
+
+static char *
+trnlog (const char *name)
+{
+ int stat;
+ static char reslt[1024];
+ $DESCRIPTOR (reslt_dsc, reslt);
+ short resltlen;
+ struct dsc$descriptor_s name_dsc;
+ char *s;
+
+ /*
+ * the string isn't changed, but there is no string descriptor with
+ * "const char *dsc$a_pointer"
+ */
+ INIT_DSC_CSTRING (name_dsc, (char *)name);
+
+ stat = lib$sys_trnlog (&name_dsc, &resltlen, &reslt_dsc);
+
+ if ((stat&1) == 0)
+ {
+ return "";
+ }
+ if (stat == SS$_NOTRAN)
+ {
+ return "";
+ }
+ reslt[resltlen] = '\0';
+
+ s = xmalloc (resltlen+1);
+ strcpy (s, reslt);
+ return s;
+}
+
+static char *
+showall (char *s)
+{
+ static char t[512];
+ char *pt;
+
+ pt = t;
+ if (strchr (s, '\\') == 0)
+ return s;
+ while (*s)
+ {
+ if (*s == '\\')
+ {
+ *pt++ = *s;
+ }
+ *pt++ = *s++;
+ }
+ return pt;
+}
+
+
+enum namestate { N_START, N_DEVICE, N_OPEN, N_DOT, N_CLOSED, N_DONE };
+
+/*
+ convert unix style name to vms style
+ type = 0 -> name is a full name (directory and filename part)
+ type = 1 -> name is a directory
+ type = 2 -> name is a filename without directory
+
+ The following conversions are applied
+ (0) (1) (2)
+ input full name dir name file name
+
+1 ./ <cwd> [] <current directory>.dir
+2 ../ <home of cwd> <home of cwd> <home of cwd>.dir
+
+3 // <dev of cwd>: <dev of cwd>:[000000] <dev of cwd>:000000.dir
+4 //a a: a: a:
+5 //a/ a: a: a:000000.dir
+
+9 / [000000] [000000] 000000.dir
+10 /a [000000]a [a] [000000]a
+11 /a/ [a] [a] [000000]a.dir
+12 /a/b [a]b [a.b] [a]b
+13 /a/b/ [a.b] [a.b] [a]b.dir
+14 /a/b/c [a.b]c [a.b.c] [a.b]c
+15 /a/b/c/ [a.b.c] [a.b.c] [a.b]c.dir
+
+16 a a [.a] a
+17 a/ [.a] [.a] a.dir
+18 a/b [.a]b [.a.b] [.a]b
+19 a/b/ [.a.b] [.a.b] [.a]b.dir
+20 a/b/c [.a.b]c [.a.b.c] [.a.b]c
+21 a/b/c/ [.a.b.c] [.a.b.c] [.a.b]c.dir
+
+22 a.b.c a_b.c [.a_b_c] a_b_c.dir
+
+23 [x][y]z [x.y]z [x.y]z [x.y]z
+24 [x][.y]z [x.y]z [x.y]z [x.y]z
+
+25 filenames with '$' are left unchanged if they contain no '/'
+25 filenames with ':' are left unchanged
+26 filenames with a single pair of '[' ']' are left unchanged
+
+ The input string is not written to. The result is also const because
+ it's a static buffer; we don't want to change it.
+*/
+
+const char *
+vmsify (const char *name, int type)
+{
+/* max 255 device
+ max 39 directory
+ max 39 filename
+ max 39 filetype
+ max 5 version
+*/
+/* todo: VMSMAXPATHLEN is defined for ODS2 names: it needs to be adjusted. */
+#define VMSMAXPATHLEN 512
+
+ enum namestate nstate;
+ static char vmsname[VMSMAXPATHLEN+1];
+ const char *fptr;
+ const char *t;
+ char *vptr;
+ int as_dir;
+ int count;
+ const char *s;
+ const char *s1;
+ const char *s2;
+
+ if (name == 0)
+ return 0;
+ fptr = name;
+ vptr = vmsname;
+ nstate = N_START;
+
+ /* case 25a */
+ t = strpbrk (name, "$:");
+
+ if (t != 0)
+ {
+// const char *s1;
+// const char *s2;
+
+ if (type == 1)
+ {
+ s1 = strchr (t+1, '[');
+ s2 = strchr (t+1, ']');
+ }
+
+ if (*t == '$')
+ {
+ if (strchr (name, '/') == 0)
+ {
+ strcpy (vmsname, name);
+ if ((type == 1) && (s1 != 0) && (s2 == 0))
+ strcat (vmsname, "]");
+ return vmsname;
+ }
+ }
+ else
+ {
+ strcpy (vmsname, name);
+ if ((type == 1) && (s1 != 0) && (s2 == 0))
+ strcat (vmsname, "]");
+ return vmsname;
+ }
+ }
+
+ /* case 26 */
+ t = strchr (name, '[');
+
+ if (t != 0)
+ {
+// const char *s;
+// const char *s1 = strchr (t+1, '[');
+ s1 = strchr (t+1, '[');
+ if (s1 == 0)
+ {
+ strcpy (vmsname, name);
+ if ((type == 1) && (strchr (t+1, ']') == 0))
+ strcat (vmsname, "]");
+ return vmsname;
+ }
+ s1--;
+ if (*s1 != ']')
+ {
+ strcpy (vmsname, name);
+ return vmsname; /* not ][, keep unchanged */
+ }
+
+ /* we have ][ */
+
+ s = name;
+
+ /* s -> starting char
+ s1 -> ending ']' */
+ do
+ {
+ strncpy (vptr, s, s1-s); /* copy up to but not including ']' */
+ vptr += s1-s;
+ if (*s1 == 0)
+ break;
+ s = s1 + 1; /* s -> char behind ']' */
+ if (*s != '[') /* was '][' ? */
+ break; /* no, last ] found, exit */
+ s++;
+ if (*s != '.')
+ *vptr++ = '.';
+ s1 = strchr (s, ']');
+ if (s1 == 0) /* no closing ] */
+ s1 = s + strlen (s);
+ }
+ while (1);
+
+ *vptr++ = ']';
+
+ fptr = s;
+
+ }
+ else /* no [ in name */
+ {
+ int state = 0;
+ int rooted = 1; /* flag if logical is rooted, else insert [000000] */
+
+ do
+ {
+ switch (state)
+ {
+ case 0: /* start of loop */
+ if (*fptr == '/')
+ {
+ fptr++;
+ state = 1;
+ }
+ else if (*fptr == '.')
+ {
+ fptr++;
+ state = 10;
+ }
+ else
+ state = 2;
+ break;
+
+ case 1: /* '/' at start */
+ if (*fptr == '/')
+ {
+ fptr++;
+ state = 3;
+ }
+ else
+ state = 4;
+ break;
+
+ case 2: /* no '/' at start */
+ {
+ const char *s = strchr (fptr, '/');
+ if (s == 0) /* no '/' (16) */
+ {
+ if (type == 1)
+ {
+ strcpy (vptr, "[.");
+ vptr += 2;
+ }
+ copyto (&vptr, &fptr, 0, (type==1));
+ if (type == 1)
+ *vptr++ = ']';
+ state = -1;
+ }
+ else /* found '/' (17..21) */
+ {
+ if ((type == 2)
+ && (*(s+1) == 0)) /* 17(2) */
+ {
+ copyto (&vptr, &fptr, '/', 1);
+ state = 7;
+ }
+ else
+ {
+ strcpy (vptr, "[.");
+ vptr += 2;
+ copyto (&vptr, &fptr, '/', 1);
+ nstate = N_OPEN;
+ state = 9;
+ }
+ }
+ break;
+ }
+
+ case 3: /* '//' at start */
+ {
+// const char *s;
+// const char *s1;
+ char *vp;
+ while (*fptr == '/') /* collapse all '/' */
+ fptr++;
+ if (*fptr == 0) /* just // */
+ {
+ char cwdbuf[VMSMAXPATHLEN+1];
+
+ s1 = getcwd(cwdbuf, VMSMAXPATHLEN);
+ if (s1 == 0)
+ {
+ vmsname[0] = '\0';
+ return vmsname; /* FIXME, err getcwd */
+ }
+ s = strchr (s1, ':');
+ if (s == 0)
+ {
+ vmsname[0] = '\0';
+ return vmsname; /* FIXME, err no device */
+ }
+ strncpy (vptr, s1, s-s1+1);
+ vptr += s-s1+1;
+ state = -1;
+ break;
+ }
+
+ s = vptr;
+
+ if (copyto (&vptr, &fptr, '/', 1) == 0) /* copy device part */
+ {
+ *vptr++ = ':';
+ state = -1;
+ break;
+ }
+ *vptr = ':';
+ nstate = N_DEVICE;
+ if (*fptr == 0) /* just '//a/' */
+ {
+ strcpy (vptr+1, "[000000]");
+ vptr += 9;
+ state = -1;
+ break;
+ }
+ *vptr = 0;
+ /* check logical for [000000] insertion */
+ vp = trnlog (s);
+ if (*vp != '\0')
+ { /* found translation */
+ for (;;) /* loop over all nested logicals */
+ {
+ char *vp2 = vp + strlen (vp) - 1;
+ if (*vp2 == ':') /* translation ends in ':' */
+ {
+ vp2 = trnlog (vp);
+ free (vp);
+ if (*vp2 == 0)
+ {
+ rooted = 0;
+ break;
+ }
+ vp = vp2;
+ continue; /* next iteration */
+ }
+ if (*vp2 == ']') /* translation ends in ']' */
+ {
+ if (*(vp2-1) == '.') /* ends in '.]' */
+ {
+ if (strncmp (fptr, "000000", 6) != 0)
+ rooted = 0;
+ }
+ else
+ {
+ strcpy (vmsname, s1);
+ vp = strchr (vmsname, ']');
+ *vp = '.';
+ nstate = N_DOT;
+ vptr = vp;
+ }
+ }
+ break;
+ }
+ free (vp);
+ }
+ else
+ rooted = 0;
+
+ if (*vptr == 0)
+ {
+ nstate = N_DEVICE;
+ *vptr++ = ':';
+ }
+ else
+ vptr++;
+
+ if (rooted == 0)
+ {
+ nstate = N_DOT;
+ strcpy (vptr, "[000000.");
+ vptr += 8;
+ vp = vptr-1;
+ }
+ else
+ vp = 0;
+
+ /* vp-> '.' after 000000 or NULL */
+
+ s = strchr (fptr, '/');
+ if (s == 0)
+ { /* no next '/' */
+ if (*(vptr-1) == '.')
+ *(vptr-1) = ']';
+ else if (rooted == 0)
+ *vptr++ = ']';
+ copyto (&vptr, &fptr, 0, (type == 1));
+ state = -1;
+ break;
+ }
+ else
+ {
+ while (*(s+1) == '/') /* skip multiple '/' */
+ s++;
+ }
+
+ if ((rooted != 0)
+ && (*(vptr-1) != '.'))
+ {
+ *vptr++ = '[';
+ nstate = N_DOT;
+ }
+ else
+ if ((nstate == N_DOT)
+ && (vp != 0)
+ && (*(s+1) == 0))
+ {
+ if (type == 2)
+ {
+ *vp = ']';
+ nstate = N_CLOSED;
+ }
+ }
+ state = 9;
+ break;
+ }
+ case 4: /* single '/' at start (9..15) */
+ if (*fptr == 0)
+ state = 5;
+ else
+ state = 6;
+ break;
+
+ case 5: /* just '/' at start (9) */
+ if (type != 2)
+ {
+ *vptr++ = '[';
+ nstate = N_OPEN;
+ }
+ strcpy (vptr, "000000");
+ vptr += 6;
+ if (type == 2)
+ state = 7;
+ else
+ state = 8;
+ break;
+
+ case 6: /* chars following '/' at start 10..15 */
+ {
+ const char *s;
+ *vptr++ = '[';
+ nstate = N_OPEN;
+ s = strchr (fptr, '/');
+ if (s == 0) /* 10 */
+ {
+ if (type != 1)
+ {
+ strcpy (vptr, "000000]");
+ vptr += 7;
+ }
+ copyto (&vptr, &fptr, 0, (type == 1));
+ if (type == 1)
+ {
+ *vptr++ = ']';
+ }
+ state = -1;
+ }
+ else /* 11..15 */
+ {
+ if ( (type == 2)
+ && (*(s+1) == 0)) /* 11(2) */
+ {
+ strcpy (vptr, "000000]");
+ nstate = N_CLOSED;
+ vptr += 7;
+ }
+ copyto (&vptr, &fptr, '/', (*(vptr-1) != ']'));
+ state = 9;
+ }
+ break;
+ }
+
+ case 7: /* add '.dir' and exit */
+ if ((nstate == N_OPEN)
+ || (nstate == N_DOT))
+ {
+ char *vp = vptr-1;
+ while (vp > vmsname)
+ {
+ if (*vp == ']')
+ {
+ break;
+ }
+ if (*vp == '.')
+ {
+ *vp = ']';
+ break;
+ }
+ vp--;
+ }
+ }
+ strcpy (vptr, ".dir");
+ vptr += 4;
+ state = -1;
+ break;
+
+ case 8: /* add ']' and exit */
+ *vptr++ = ']';
+ state = -1;
+ break;
+
+ case 9: /* 17..21, fptr -> 1st '/' + 1 */
+ {
+ const char *s;
+ if (*fptr == 0)
+ {
+ if (type == 2)
+ {
+ state = 7;
+ }
+ else
+ state = 8;
+ break;
+ }
+ s = strchr (fptr, '/');
+ if (s == 0)
+ {
+ if (type != 1)
+ {
+ if (nstate == N_OPEN)
+ {
+ *vptr++ = ']';
+ nstate = N_CLOSED;
+ }
+ as_dir = 0;
+ }
+ else
+ {
+ if (nstate == N_OPEN)
+ {
+ *vptr++ = '.';
+ nstate = N_DOT;
+ }
+ as_dir = 1;
+ }
+ }
+ else
+ {
+ while (*(s+1) == '/')
+ s++;
+ if ( (type == 2)
+ && (*(s+1) == 0)) /* 19(2), 21(2)*/
+ {
+ if (nstate != N_CLOSED)
+ {
+ *vptr++ = ']';
+ nstate = N_CLOSED;
+ }
+ as_dir = 1;
+ }
+ else
+ {
+ if (nstate == N_OPEN)
+ {
+ *vptr++ = '.';
+ nstate = N_DOT;
+ }
+ as_dir = 1;
+ }
+ }
+ if ( (*fptr == '.') /* check for '..' or '../' */
+ && (*(fptr+1) == '.')
+ && ((*(fptr+2) == '/')
+ || (*(fptr+2) == 0)) )
+ {
+ char *vp;
+ fptr += 2;
+ if (*fptr == '/')
+ {
+ do
+ {
+ fptr++;
+ }
+ while (*fptr == '/');
+ }
+ else if (*fptr == 0)
+ type = 1;
+ vptr--; /* vptr -> '.' or ']' */
+ vp = vptr;
+ for (;;)
+ {
+ vp--;
+ if (*vp == '.') /* one back */
+ {
+ vptr = vp;
+ nstate = N_OPEN;
+ break;
+ }
+ if (*vp == '[') /* top level reached */
+ {
+ if (*fptr == 0)
+ {
+ strcpy (vp, "[000000]");
+ vptr = vp + 8;
+ nstate = N_CLOSED;
+ s = 0;
+ break;
+ }
+ else
+ {
+ vptr = vp+1;
+ nstate = N_OPEN;
+ break;
+ }
+ }
+ }
+ }
+ else
+ {
+ copyto (&vptr, &fptr, '/', as_dir);
+ if (nstate == N_DOT)
+ nstate = N_OPEN;
+ }
+ if (s == 0)
+ { /* 18,20 */
+ if (type == 1)
+ *vptr++ = ']';
+ state = -1;
+ }
+ else
+ {
+ if (*(s+1) == 0)
+ {
+ if (type == 2) /* 19,21 */
+ {
+ state = 7;
+ }
+ else
+ {
+ *vptr++ = ']';
+ state = -1;
+ }
+ }
+ }
+ break;
+ }
+
+ case 10: /* 1,2 first is '.' */
+ if (*fptr == '.')
+ {
+ fptr++;
+ state = 11;
+ }
+ else
+ state = 12;
+ break;
+
+ case 11: /* 2, '..' at start */
+ count = 1;
+ if (*fptr != 0)
+ {
+ if (*fptr != '/') /* got ..xxx */
+ {
+ strcpy (vmsname, name);
+ return vmsname;
+ }
+ do /* got ../ */
+ {
+ fptr++;
+ while (*fptr == '/') fptr++;
+ if (*fptr != '.')
+ break;
+ if (*(fptr+1) != '.')
+ break;
+ fptr += 2;
+ if ((*fptr == 0)
+ || (*fptr == '/'))
+ count++;
+ }
+ while (*fptr == '/');
+ }
+ { /* got '..' or '../' */
+ char *vp;
+ char cwdbuf[VMSMAXPATHLEN+1];
+
+ vp = getcwd(cwdbuf, VMSMAXPATHLEN);
+ if (vp == 0)
+ {
+ vmsname[0] = '\0';
+ return vmsname; /* FIXME, err getcwd */
+ }
+ strcpy (vptr, vp);
+ vp = strchr (vptr, ']');
+ if (vp != 0)
+ {
+ nstate = N_OPEN;
+ while (vp > vptr)
+ {
+ vp--;
+ if (*vp == '[')
+ {
+ vp++;
+ strcpy (vp, "000000]");
+ state = -1;
+ break;
+ }
+ else if (*vp == '.')
+ {
+ if (--count == 0)
+ {
+ if (*fptr == 0) /* had '..' or '../' */
+ {
+ *vp++ = ']';
+ state = -1;
+ }
+ else /* had '../xxx' */
+ {
+ state = 9;
+ }
+ *vp = '\0';
+ break;
+ }
+ }
+ }
+ }
+ vptr += strlen (vptr);
+ }
+ break;
+
+ case 12: /* 1, '.' at start */
+ if (*fptr != 0)
+ {
+ if (*fptr != '/')
+ {
+ strcpy (vmsname, name);
+ return vmsname;
+ }
+ while (*fptr == '/')
+ fptr++;
+ }
+
+ {
+ char *vp;
+ char cwdbuf[VMSMAXPATHLEN+1];
+
+ vp = getcwd(cwdbuf, VMSMAXPATHLEN);
+ if (vp == 0)
+ {
+ vmsname[0] = '\0';
+ return vmsname; /*FIXME, err getcwd */
+ }
+ strcpy (vptr, vp);
+ }
+ if (*fptr == 0)
+ {
+ state = -1;
+ break;
+ }
+ else
+ {
+ char *vp = strchr (vptr, ']');
+ if (vp == 0)
+ {
+ state = -1;
+ break;
+ }
+ *vp = '\0';
+ nstate = N_OPEN;
+ vptr += strlen (vptr);
+ state = 9;
+ }
+ break;
+ }
+
+ }
+ while (state > 0);
+
+
+ }
+
+
+ /* directory conversion done
+ fptr -> filename part of input string
+ vptr -> free space in vmsname
+ */
+
+ *vptr++ = 0;
+
+ return vmsname;
+}
+
+
+
+/*
+ convert from vms-style to unix-style
+
+ dev:[dir1.dir2] //dev/dir1/dir2/
+*/
+
+const char *
+unixify (const char *name)
+{
+ static char piece[512];
+ const char *s;
+ char *p;
+
+ if (strchr (name, '/') != 0) /* already in unix style */
+ {
+ strcpy (piece, name);
+ return piece;
+ }
+
+ p = piece;
+ *p = 0;
+
+ /* device part */
+
+ s = strchr (name, ':');
+
+ if (s != 0)
+ {
+ int l = s - name;
+ *p++ = '/';
+ *p++ = '/';
+ strncpy (p, name, l);
+ p += l;
+ }
+
+ /* directory part */
+
+ *p++ = '/';
+ s = strchr (name, '[');
+
+ if (s != 0)
+ {
+ s++;
+ switch (*s)
+ {
+ case ']': /* [] */
+ strcat (p, "./");
+ break;
+ case '-': /* [- */
+ strcat (p, "../");
+ break;
+ case '.':
+ strcat (p, "./"); /* [. */
+ break;
+ default:
+ s--;
+ break;
+ }
+ s++;
+ while (*s)
+ {
+ if (*s == '.')
+ *p++ = '/';
+ else
+ *p++ = *s;
+ s++;
+ if (*s == ']')
+ {
+ s++;
+ break;
+ }
+ }
+ if (*s != 0) /* more after ']' ?? */
+ {
+ if (*(p-1) != '/')
+ *p++ = '/';
+ strcpy (p, s); /* copy it anyway */
+ }
+ }
+
+ else /* no '[' anywhere */
+
+ {
+ *p++ = 0;
+ }
+
+ /* force end with '/' */
+
+ if (*(p-1) != '/')
+ *p++ = '/';
+ *p = 0;
+
+ return piece;
+}
+
+/* EOF */
diff --git a/vmsjobs.c b/vmsjobs.c
new file mode 100644
index 0000000..f45c8a8
--- /dev/null
+++ b/vmsjobs.c
@@ -0,0 +1,1468 @@
+/* --------------- Moved here from job.c ---------------
+ This file must be #included in job.c, as it accesses static functions.
+
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <string.h>
+#include <descrip.h>
+#include <clidef.h>
+
+/* TODO - VMS specific header file conditionally included in makeint.h */
+
+#include <stsdef.h>
+#include <ssdef.h>
+void
+decc$exit (int status);
+
+/* Lowest legal non-success VMS exit code is 8 */
+/* GNU make only defines codes 0, 1, 2 */
+/* So assume any exit code > 8 is a VMS exit code */
+
+#ifndef MAX_EXPECTED_EXIT_CODE
+# define MAX_EXPECTED_EXIT_CODE 7
+#endif
+
+
+#if __CRTL_VER >= 70302000 && !defined(__VAX)
+# define MAX_DCL_LINE_LENGTH 4095
+# define MAX_DCL_CMD_LINE_LENGTH 8192
+#else
+# define MAX_DCL_LINE_LENGTH 255
+# define MAX_DCL_CMD_LINE_LENGTH 1024
+#endif
+#define MAX_DCL_TOKEN_LENGTH 255
+#define MAX_DCL_TOKENS 127
+
+enum auto_pipe { nopipe, add_pipe, dcl_pipe };
+
+char *vmsify (char *name, int type);
+
+static int vms_jobsefnmask = 0;
+
+/* returns whether path is assumed to be a unix like shell. */
+int
+_is_unixy_shell (const char *path)
+{
+ return vms_gnv_shell;
+}
+
+#define VMS_GETMSG_MAX 256
+static char vms_strsignal_text[VMS_GETMSG_MAX + 2];
+
+char *
+vms_strsignal (int status)
+{
+ if (status <= MAX_EXPECTED_EXIT_CODE)
+ sprintf (vms_strsignal_text, "lib$spawn returned %x", status);
+ else
+ {
+ int vms_status;
+ unsigned short * msg_len;
+ unsigned char out[4];
+ vms_status = SYS$GETMSG (status, &msg_len,
+ vms_strsignal_text, 7, *out);
+ }
+
+ return vms_strsignal_text;
+}
+
+
+/* Wait for nchildren children to terminate */
+static void
+vmsWaitForChildren (int *status)
+{
+ while (1)
+ {
+ if (!vms_jobsefnmask)
+ {
+ *status = 0;
+ return;
+ }
+
+ *status = sys$wflor (32, vms_jobsefnmask);
+ }
+ return;
+}
+
+static int ctrlYPressed= 0;
+/* This is called at main or AST level. It is at AST level for DONTWAITFORCHILD
+ and at main level otherwise. In any case it is called when a child process
+ terminated. At AST level it won't get interrupted by anything except a
+ inner mode level AST.
+*/
+static int
+vmsHandleChildTerm (struct child *child)
+{
+ int exit_code;
+ register struct child *lastc, *c;
+ int child_failed;
+
+ /* The child efn is 0 when a built-in or null command is executed
+ successfully with out actually creating a child.
+ */
+ if (child->efn > 0)
+ {
+ vms_jobsefnmask &= ~(1 << (child->efn - 32));
+
+ lib$free_ef (&child->efn);
+ }
+ if (child->comname)
+ {
+ if (!ISDB (DB_JOBS) && !ctrlYPressed)
+ unlink (child->comname);
+ free (child->comname);
+ }
+
+ (void) sigblock (fatal_signal_mask);
+
+ /* First check to see if this is a POSIX exit status and handle */
+ if ((child->cstatus & VMS_POSIX_EXIT_MASK) == VMS_POSIX_EXIT_MASK)
+ {
+ exit_code = (child->cstatus >> 3) & 255;
+ if (exit_code != MAKE_SUCCESS)
+ child_failed = 1;
+ }
+ else
+ {
+ child_failed = !$VMS_STATUS_SUCCESS (child->cstatus);
+ if (child_failed)
+ exit_code = child->cstatus;
+ }
+
+ /* Search for a child matching the deceased one. */
+ lastc = 0;
+#if defined(RECURSIVEJOBS)
+ /* I've had problems with recursive stuff and process handling */
+ for (c = children; c != 0 && c != child; lastc = c, c = c->next)
+ ;
+#else
+ c = child;
+#endif
+
+ if ($VMS_STATUS_SUCCESS (child->vms_launch_status))
+ {
+ /* Convert VMS success status to 0 for UNIX code to be happy */
+ child->vms_launch_status = 0;
+ }
+
+ /* Set the state flag to say the commands have finished. */
+ c->file->command_state = cs_finished;
+ notice_finished_file (c->file);
+
+ (void) sigsetmask (sigblock (0) & ~(fatal_signal_mask));
+
+ return 1;
+}
+
+/* VMS:
+ Spawn a process executing the command in ARGV and return its pid. */
+
+/* local helpers to make ctrl+c and ctrl+y working, see below */
+#include <iodef.h>
+#include <libclidef.h>
+#include <ssdef.h>
+
+static int ctrlMask= LIB$M_CLI_CTRLY;
+static int oldCtrlMask;
+static int setupYAstTried= 0;
+static unsigned short int chan= 0;
+
+static void
+reEnableAst(void)
+{
+ lib$enable_ctrl (&oldCtrlMask,0);
+}
+
+static int
+astYHandler (void)
+{
+ struct child *c;
+ for (c = children; c != 0; c = c->next)
+ sys$delprc (&c->pid, 0, 0);
+ ctrlYPressed= 1;
+ kill (getpid(),SIGQUIT);
+ return SS$_NORMAL;
+}
+
+static void
+tryToSetupYAst(void)
+{
+ $DESCRIPTOR(inputDsc,"SYS$COMMAND");
+ int status;
+ struct {
+ short int status, count;
+ int dvi;
+ } iosb;
+ unsigned short int loc_chan;
+
+ setupYAstTried++;
+
+ if (chan)
+ loc_chan= chan;
+ else
+ {
+ status= sys$assign(&inputDsc,&loc_chan,0,0);
+ if (!(status&SS$_NORMAL))
+ {
+ lib$signal(status);
+ return;
+ }
+ }
+ status= sys$qiow (0, loc_chan, IO$_SETMODE|IO$M_CTRLYAST,&iosb,0,0,
+ astYHandler,0,0,0,0,0);
+ if (status==SS$_NORMAL)
+ status= iosb.status;
+ if (status!=SS$_NORMAL)
+ {
+ if (!chan)
+ sys$dassgn(loc_chan);
+ if (status!=SS$_ILLIOFUNC && status!=SS$_NOPRIV)
+ lib$signal(status);
+ return;
+ }
+
+ /* called from AST handler ? */
+ if (setupYAstTried>1)
+ return;
+ if (atexit(reEnableAst))
+ fprintf (stderr,
+ _("-warning, you may have to re-enable CTRL-Y handling from DCL.\n"));
+ status= lib$disable_ctrl (&ctrlMask, &oldCtrlMask);
+ if (!(status&SS$_NORMAL))
+ {
+ lib$signal(status);
+ return;
+ }
+ if (!chan)
+ chan = loc_chan;
+}
+
+/* Check if a token is too long */
+#define INC_TOKEN_LEN_OR_RETURN(x) {token->length++; \
+ if (token->length >= MAX_DCL_TOKEN_LENGTH) \
+ { token->cmd_errno = ERANGE; return x; }}
+
+#define INC_TOKEN_LEN_OR_BREAK {token->length++; \
+ if (token->length >= MAX_DCL_TOKEN_LENGTH) \
+ { token->cmd_errno = ERANGE; break; }}
+
+#define ADD_TOKEN_LEN_OR_RETURN(add_len, x) {token->length += add_len; \
+ if (token->length >= MAX_DCL_TOKEN_LENGTH) \
+ { token->cmd_errno = ERANGE; return x; }}
+
+/* Check if we are out of space for more tokens */
+#define V_NEXT_TOKEN { if (cmd_tkn_index < MAX_DCL_TOKENS) \
+ cmd_tokens[++cmd_tkn_index] = NULL; \
+ else { token.cmd_errno = E2BIG; break; } \
+ token.length = 0;}
+
+
+#define UPDATE_TOKEN {cmd_tokens[cmd_tkn_index] = strdup(token.text); \
+ V_NEXT_TOKEN;}
+
+#define EOS_ERROR(x) { if (*x == 0) { token->cmd_errno = ERANGE; break; }}
+
+struct token_info
+ {
+ char *text; /* Parsed text */
+ int length; /* Length of parsed text */
+ char *src; /* Pointer to source text */
+ int cmd_errno; /* Error status of parse */
+ int use_cmd_file; /* Force use of a command file */
+ };
+
+
+/* Extract a Posix single quoted string from input line */
+static char *
+posix_parse_sq (struct token_info *token)
+{
+ /* A Posix quoted string with no expansion unless in a string
+ Unix simulation means no lexical functions present.
+ */
+ char * q;
+ char * p;
+ q = token->text;
+ p = token->src;
+
+ *q++ = '"';
+ p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+
+ while (*p != '\'' && (token->length < MAX_DCL_TOKEN_LENGTH))
+ {
+ EOS_ERROR (p);
+ if (*p == '"')
+ {
+ /* Embedded double quotes need to be doubled */
+ *q++ = '"';
+ INC_TOKEN_LEN_OR_BREAK;
+ *q = '"';
+ }
+ else
+ *q = *p;
+
+ q++;
+ p++;
+ INC_TOKEN_LEN_OR_BREAK;
+ }
+ *q++ = '"';
+ p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+ *q = 0;
+ return p;
+}
+
+/* Extract a Posix double quoted string from input line */
+static char *
+posix_parse_dq (struct token_info *token)
+{
+ /* Unix mode: Any imbedded \" becomes doubled.
+ \t is tab, \\, \$ leading character stripped.
+ $ character replaced with \' unless escaped.
+ */
+ char * q;
+ char * p;
+ q = token->text;
+ p = token->src;
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+ while (*p != 0)
+ {
+ if (*p == '\\')
+ {
+ switch(p[1])
+ {
+ case 't': /* Convert tabs */
+ *q = '\t';
+ p++;
+ break;
+ case '\\': /* Just remove leading backslash */
+ case '$':
+ p++;
+ *q = *p;
+ break;
+ case '"':
+ p++;
+ *q = *p;
+ *q++ = '"';
+ INC_TOKEN_LEN_OR_BREAK;
+ default: /* Pass through unchanged */
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_BREAK;
+ }
+ INC_TOKEN_LEN_OR_BREAK;
+ }
+ else if (*p == '$' && isalpha (p[1]))
+ {
+ /* A symbol we should be able to substitute */
+ *q++ = '\'';
+ INC_TOKEN_LEN_OR_BREAK;
+ *q = '\'';
+ INC_TOKEN_LEN_OR_BREAK;
+ token->use_cmd_file = 1;
+ }
+ else
+ {
+ *q = *p;
+ INC_TOKEN_LEN_OR_BREAK;
+ if (*p == '"')
+ {
+ p++;
+ q++;
+ break;
+ }
+ }
+ p++;
+ q++;
+ }
+ *q = 0;
+ return p;
+}
+
+/* Extract a VMS quoted string or substitution string from input line */
+static char *
+vms_parse_quotes (struct token_info *token)
+{
+ /* VMS mode, the \' means that a symbol substitution is starting
+ so while you might think you can just copy until the next
+ \'. Unfortunately the substitution can be a lexical function
+ which can contain embedded strings and lexical functions.
+ Messy, so both types need to be handled together.
+ */
+ char * q;
+ char * p;
+ q = token->text;
+ p = token->src;
+ int parse_level[MAX_DCL_TOKENS + 1];
+ int nest = 0;
+
+ parse_level[0] = *p;
+ if (parse_level[0] == '\'')
+ token->use_cmd_file = 1;
+
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+
+
+ /* Copy everything until after the next single quote at nest == 0 */
+ while (token->length < MAX_DCL_TOKEN_LENGTH)
+ {
+ EOS_ERROR (p);
+ *q = *p;
+ INC_TOKEN_LEN_OR_BREAK;
+ if ((*p == parse_level[nest]) && (p[1] != '"'))
+ {
+ if (nest == 0)
+ {
+ *q++ = *p++;
+ break;
+ }
+ nest--;
+ }
+ else
+ {
+ switch(*p)
+ {
+ case '\\':
+ /* Handle continuation on to next line */
+ if (p[1] != '\n')
+ break;
+ p++;
+ p++;
+ *q = *p;
+ break;
+ case '(':
+ /* Parenthesis only in single quote level */
+ if (parse_level[nest] == '\'')
+ {
+ nest++;
+ parse_level[nest] == ')';
+ }
+ break;
+ case '"':
+ /* Double quotes only in parenthesis */
+ if (parse_level[nest] == ')')
+ {
+ nest++;
+ parse_level[nest] == '"';
+ }
+ break;
+ case '\'':
+ /* Symbol substitution ony in double quotes */
+ if ((p[1] == '\'') && (parse_level[nest] == '"'))
+ {
+ nest++;
+ parse_level[nest] == '\'';
+ *p++ = *q++;
+ token->use_cmd_file = 1;
+ INC_TOKEN_LEN_OR_BREAK;
+ break;
+ }
+ *q = *p;
+ }
+ }
+ p++;
+ q++;
+ /* Pass through doubled double quotes */
+ if ((*p == '"') && (p[1] == '"') && (parse_level[nest] == '"'))
+ {
+ *p++ = *q++;
+ INC_TOKEN_LEN_OR_BREAK;
+ *p++ = *q++;
+ INC_TOKEN_LEN_OR_BREAK;
+ }
+ }
+ *q = 0;
+ return p;
+}
+
+/* Extract a $ string from the input line */
+static char *
+posix_parse_dollar (struct token_info *token)
+{
+ /* $foo becomes 'foo' */
+ char * q;
+ char * p;
+ q = token->text;
+ p = token->src;
+ token->use_cmd_file = 1;
+
+ p++;
+ *q++ = '\'';
+ INC_TOKEN_LEN_OR_RETURN (p);
+
+ while ((isalnum (*p)) || (*p == '_'))
+ {
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_BREAK;
+ }
+ *q++ = '\'';
+ while (1)
+ {
+ INC_TOKEN_LEN_OR_BREAK;
+ break;
+ }
+ *q = 0;
+ return p;
+}
+
+const char *vms_filechars = "0123456789abcdefghijklmnopqrstuvwxyz" \
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ[]<>:/_-.$";
+
+/* Simple text copy */
+static char *
+parse_text (struct token_info *token, int assignment_hack)
+{
+ char * q;
+ char * p;
+ int str_len;
+ q = token->text;
+ p = token->src;
+
+ /* If assignment hack, then this text needs to be double quoted. */
+ if (vms_unix_simulation && (assignment_hack == 2))
+ {
+ *q++ = '"';
+ INC_TOKEN_LEN_OR_RETURN (p);
+ }
+
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+
+ while (*p != 0)
+ {
+ str_len = strspn (p, vms_filechars);
+ if (str_len == 0)
+ {
+ /* Pass through backslash escapes in Unix simulation
+ probably will not work anyway.
+ All any character after a ^ otherwise to support EFS.
+ */
+ if (vms_unix_simulation && (p[0] == '\\') && (p[1] != 0))
+ str_len = 2;
+ else if ((p[0] == '^') && (p[1] != 0))
+ str_len = 2;
+ else if (!vms_unix_simulation && (p[0] == ';'))
+ str_len = 1;
+
+ if (str_len == 0)
+ {
+ /* If assignment hack, then this needs to be double quoted. */
+ if (vms_unix_simulation && (assignment_hack == 2))
+ {
+ *q++ = '"';
+ INC_TOKEN_LEN_OR_RETURN (p);
+ }
+ *q = 0;
+ return p;
+ }
+ }
+ if (str_len > 0)
+ {
+ ADD_TOKEN_LEN_OR_RETURN (str_len, p);
+ strncpy (q, p, str_len);
+ p += str_len;
+ q += str_len;
+ *q = 0;
+ }
+ }
+ /* If assignment hack, then this text needs to be double quoted. */
+ if (vms_unix_simulation && (assignment_hack == 2))
+ {
+ *q++ = '"';
+ INC_TOKEN_LEN_OR_RETURN (p);
+ }
+ return p;
+}
+
+/* single character copy */
+static char *
+parse_char (struct token_info *token, int count)
+{
+ char * q;
+ char * p;
+ q = token->text;
+ p = token->src;
+
+ while (count > 0)
+ {
+ *q++ = *p++;
+ INC_TOKEN_LEN_OR_RETURN (p);
+ count--;
+ }
+ *q = 0;
+ return p;
+}
+
+/* Build a command string from the collected tokens
+ and process built-ins now
+*/
+static struct dsc$descriptor_s *
+build_vms_cmd (char **cmd_tokens,
+ enum auto_pipe use_pipe_cmd,
+ int append_token)
+{
+ struct dsc$descriptor_s *cmd_dsc;
+ int cmd_tkn_index;
+ char * cmd;
+ int cmd_len;
+ int semicolon_seen;
+
+ cmd_tkn_index = 0;
+ cmd_dsc = xmalloc (sizeof (struct dsc$descriptor_s));
+
+ /* Empty command? */
+ if (cmd_tokens[0] == NULL)
+ {
+ cmd_dsc->dsc$a_pointer = NULL;
+ cmd_dsc->dsc$w_length = 0;
+ return cmd_dsc;
+ }
+
+ /* Max DCL command + 1 extra token and trailing space */
+ cmd = xmalloc (MAX_DCL_CMD_LINE_LENGTH + 256);
+
+ cmd[0] = '$';
+ cmd[1] = 0;
+ cmd_len = 1;
+
+ /* Handle real or auto-pipe */
+ if (use_pipe_cmd == add_pipe)
+ {
+ /* We need to auto convert to a pipe command */
+ strcat (cmd, "pipe ");
+ cmd_len += 5;
+ }
+
+ semicolon_seen = 0;
+ while (cmd_tokens[cmd_tkn_index] != NULL)
+ {
+
+ /* Check for buffer overflow */
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+
+ /* Eliminate double ';' */
+ if (semicolon_seen && (cmd_tokens[cmd_tkn_index][0] == ';'))
+ {
+ semicolon_seen = 0;
+ free (cmd_tokens[cmd_tkn_index++]);
+ if (cmd_tokens[cmd_tkn_index] == NULL)
+ break;
+ }
+
+ /* Special handling for CD built-in */
+ if (strncmp (cmd_tokens[cmd_tkn_index], "builtin_cd", 11) == 0)
+ {
+ int result;
+ semicolon_seen = 0;
+ free (cmd_tokens[cmd_tkn_index]);
+ cmd_tkn_index++;
+ if (cmd_tokens[cmd_tkn_index] == NULL)
+ break;
+ DB(DB_JOBS, (_("BUILTIN CD %s\n"), cmd_tokens[cmd_tkn_index]));
+
+ /* TODO: chdir fails with some valid syntaxes */
+ result = chdir (cmd_tokens[cmd_tkn_index]);
+ if (result != 0)
+ {
+ /* TODO: Handle failure better */
+ free (cmd);
+ while (cmd_tokens[cmd_tkn_index] == NULL)
+ free (cmd_tokens[cmd_tkn_index++]);
+ cmd_dsc->dsc$w_length = -1;
+ cmd_dsc->dsc$a_pointer = NULL;
+ return cmd_dsc;
+ }
+ }
+ else if (strncmp (cmd_tokens[cmd_tkn_index], "exit", 5) == 0)
+ {
+ /* Copy the exit command */
+ semicolon_seen = 0;
+ strcpy (&cmd[cmd_len], cmd_tokens[cmd_tkn_index]);
+ cmd_len += strlen (cmd_tokens[cmd_tkn_index]);
+ free (cmd_tokens[cmd_tkn_index++]);
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+
+ /* Optional whitespace */
+ if (isspace (cmd_tokens[cmd_tkn_index][0]))
+ {
+ strcpy (&cmd[cmd_len], cmd_tokens[cmd_tkn_index]);
+ cmd_len += strlen (cmd_tokens[cmd_tkn_index]);
+ free (cmd_tokens[cmd_tkn_index++]);
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+ }
+
+ /* There should be a status, but it is optional */
+ if (cmd_tokens[cmd_tkn_index][0] == ';')
+ continue;
+
+ /* If Unix simulation, add '((' */
+ if (vms_unix_simulation)
+ {
+ strcpy (&cmd[cmd_len], "((");
+ cmd_len += 2;
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+ }
+
+ /* Add the parameter */
+ strcpy (&cmd[cmd_len], cmd_tokens[cmd_tkn_index]);
+ cmd_len += strlen (cmd_tokens[cmd_tkn_index]);
+ free (cmd_tokens[cmd_tkn_index++]);
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+
+ /* Add " * 8) .and. %x7f8) .or. %x1035a002" */
+ if (vms_unix_simulation)
+ {
+ const char *end_str = " * 8) .and. %x7f8) .or. %x1035a002";
+ strcpy (&cmd[cmd_len], end_str);
+ cmd_len += strlen (end_str);
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+ }
+ continue;
+ }
+
+ /* auto pipe needs spaces before semicolon */
+ if (use_pipe_cmd == add_pipe)
+ if (cmd_tokens[cmd_tkn_index][0] == ';')
+ {
+ cmd[cmd_len++] = ' ';
+ semicolon_seen = 1;
+ if (cmd_len > MAX_DCL_CMD_LINE_LENGTH)
+ {
+ errno = E2BIG;
+ break;
+ }
+ }
+ else
+ {
+ char ch;
+ ch = cmd_tokens[cmd_tkn_index][0];
+ if (!(ch == ' ' || ch == '\t'))
+ semicolon_seen = 0;
+ }
+
+ strcpy (&cmd[cmd_len], cmd_tokens[cmd_tkn_index]);
+ cmd_len += strlen (cmd_tokens[cmd_tkn_index]);
+
+ free (cmd_tokens[cmd_tkn_index++]);
+
+ /* Skip the append tokens if they exist */
+ if (cmd_tkn_index == append_token)
+ {
+ free (cmd_tokens[cmd_tkn_index++]);
+ if (isspace (cmd_tokens[cmd_tkn_index][0]))
+ free (cmd_tokens[cmd_tkn_index++]);
+ free (cmd_tokens[cmd_tkn_index++]);
+ }
+ }
+
+ cmd[cmd_len] = 0;
+ cmd_dsc->dsc$w_length = cmd_len;
+ cmd_dsc->dsc$a_pointer = cmd;
+ cmd_dsc->dsc$b_dtype = DSC$K_DTYPE_T;
+ cmd_dsc->dsc$b_class = DSC$K_CLASS_S;
+
+ return cmd_dsc;
+}
+
+int
+child_execute_job (struct child *child, char *argv)
+{
+ int i;
+
+ static struct dsc$descriptor_s *cmd_dsc;
+ static struct dsc$descriptor_s pnamedsc;
+ int spflags = CLI$M_NOWAIT;
+ int status;
+ int comnamelen;
+ char procname[100];
+
+ char *p;
+ char *cmd_tokens[(MAX_DCL_TOKENS * 2) + 1]; /* whitespace does not count */
+ char token_str[MAX_DCL_TOKEN_LENGTH + 1];
+ struct token_info token;
+ int cmd_tkn_index;
+ int paren_level = 0;
+ enum auto_pipe use_pipe_cmd = nopipe;
+ int append_token = -1;
+ char *append_file = NULL;
+ int unix_echo_cmd = 0; /* Special handle Unix echo command */
+ int assignment_hack = 0; /* Handle x=y command as piped command */
+
+ /* Parse IO redirection. */
+
+ child->comname = NULL;
+
+ DB (DB_JOBS, ("child_execute_job (%s)\n", argv));
+
+ while (isspace ((unsigned char)*argv))
+ argv++;
+
+ if (*argv == 0)
+ {
+ /* Only a built-in or a null command - Still need to run term AST */
+ child->cstatus = VMS_POSIX_EXIT_MASK;
+ child->vms_launch_status = SS$_NORMAL;
+ /* TODO what is this "magic number" */
+ child->pid = 270163; /* Special built-in */
+ child->efn = 0;
+ vmsHandleChildTerm (child);
+ return 1;
+ }
+
+ sprintf (procname, "GMAKE_%05x", getpid () & 0xfffff);
+ pnamedsc.dsc$w_length = strlen (procname);
+ pnamedsc.dsc$a_pointer = procname;
+ pnamedsc.dsc$b_dtype = DSC$K_DTYPE_T;
+ pnamedsc.dsc$b_class = DSC$K_CLASS_S;
+
+ /* Old */
+ /* Handle comments and redirection.
+ For ONESHELL, the redirection must be on the first line. Any other
+ redirection token is handled by DCL, that is, the pipe command with
+ redirection can be used, but it should not be used on the first line
+ for ONESHELL. */
+
+ /* VMS parser notes:
+ 1. A token is any of DCL verbs, qualifiers, parameters, or punctuation.
+ 2. Only MAX_DCL_TOKENS per line in both one line or command file mode.
+ 3. Each token limited to MAC_DCL_TOKEN_LENGTH
+ 4. If the line to DCL is greater than MAX_DCL_LINE_LENGTH then a
+ command file must be used.
+ 5. Currently a command file must be used symbol substitution is to
+ be performed.
+ 6. Currently limiting command files to 2 * MAX_DCL_TOKENS.
+
+ Build both a command file token list and command line token list
+ until it is determined that the command line limits are exceeded.
+ */
+
+ cmd_tkn_index = 0;
+ cmd_tokens[cmd_tkn_index] = NULL;
+ p = argv;
+
+ token.text = token_str;
+ token.length = 0;
+ token.cmd_errno = 0;
+ token.use_cmd_file = 0;
+
+ while (*p != 0)
+ {
+ /* We can not build this command so give up */
+ if (token.cmd_errno != 0)
+ break;
+
+ token.src = p;
+
+ switch (*p)
+ {
+ case '\'':
+ if (vms_unix_simulation || unix_echo_cmd)
+ {
+ p = posix_parse_sq (&token);
+ UPDATE_TOKEN;
+ break;
+ }
+
+ /* VMS mode, the \' means that a symbol substitution is starting
+ so while you might think you can just copy until the next
+ \'. Unfortunately the substitution can be a lexical function
+ which can contain embedded strings and lexical functions.
+ Messy.
+ */
+ p = vms_parse_quotes (&token);
+ UPDATE_TOKEN;
+ break;
+ case '"':
+ if (vms_unix_simulation)
+ {
+ p = posix_parse_dq (&token);
+ UPDATE_TOKEN;
+ break;
+ }
+
+ /* VMS quoted string, can contain lexical functions with
+ quoted strings and nested lexical functions.
+ */
+ p = vms_parse_quotes (&token);
+ UPDATE_TOKEN;
+ break;
+
+ case '$':
+ if (vms_unix_simulation)
+ {
+ p = posix_parse_dollar (&token);
+ UPDATE_TOKEN;
+ break;
+ }
+
+ /* Otherwise nothing special */
+ p = parse_text (&token, 0);
+ UPDATE_TOKEN;
+ break;
+ case '\\':
+ if (p[1] == '\n')
+ {
+ /* Line continuation, remove it */
+ p += 2;
+ break;
+ }
+
+ /* Ordinary character otherwise */
+ if (assignment_hack != 0)
+ assignment_hack++;
+ if (assignment_hack > 2)
+ {
+ assignment_hack = 0; /* Reset */
+ if (use_pipe_cmd == nopipe) /* force pipe use */
+ use_pipe_cmd = add_pipe;
+ token_str[0] = ';'; /* add ; token */
+ token_str[1] = 0;
+ UPDATE_TOKEN;
+ }
+ p = parse_text (&token, assignment_hack);
+ UPDATE_TOKEN;
+ break;
+ case '!':
+ case '#':
+ /* Unix '#' is VMS '!' which comments out the rest of the line.
+ Historically the rest of the line has been skipped.
+ Not quite the right thing to do, as the f$verify lexical
+ function works in comments. But this helps keep the line
+ lengths short.
+ */
+ unix_echo_cmd = 0;
+ while (*p != '\n' && *p != 0)
+ p++;
+ break;
+ case '(':
+ /* Subshell, equation, or lexical function argument start */
+ p = parse_char (&token, 1);
+ UPDATE_TOKEN;
+ paren_level++;
+ break;
+ case ')':
+ /* Close out a paren level */
+ p = parse_char (&token, 1);
+ UPDATE_TOKEN;
+ paren_level--;
+ /* TODO: Should we diagnose if paren_level goes negative? */
+ break;
+ case '&':
+ if (isalpha (p[1]) && !vms_unix_simulation)
+ {
+ /* VMS symbol substitution */
+ p = parse_text (&token, 0);
+ token.use_cmd_file = 1;
+ UPDATE_TOKEN;
+ break;
+ }
+ if (use_pipe_cmd == nopipe)
+ use_pipe_cmd = add_pipe;
+ if (p[1] != '&')
+ p = parse_char (&token, 1);
+ else
+ p = parse_char (&token, 2);
+ UPDATE_TOKEN;
+ break;
+ case '|':
+ if (use_pipe_cmd == nopipe)
+ use_pipe_cmd = add_pipe;
+ if (p[1] != '|')
+ p = parse_char (&token, 1);
+ else
+ p = parse_char (&token, 2);
+ UPDATE_TOKEN;
+ break;
+ case ';':
+ /* Separator - convert to a pipe command. */
+ unix_echo_cmd = 0;
+ case '<':
+ if (use_pipe_cmd == nopipe)
+ use_pipe_cmd = add_pipe;
+ p = parse_char (&token, 1);
+ UPDATE_TOKEN;
+ break;
+ case '>':
+ if (use_pipe_cmd == nopipe)
+ use_pipe_cmd = add_pipe;
+ if (p[1] == '>')
+ {
+ /* Parsing would have been simple until support for the >>
+ append redirect was added.
+ Implementation needs:
+ * if not exist output file create empty
+ * open/append gnv$make_temp??? output_file
+ * define/user sys$output gnv$make_temp???
+ ** And all this done before the command previously tokenized.
+ * command previously tokenized
+ * close gnv$make_temp???
+ */
+ p = parse_char (&token, 2);
+ append_token = cmd_tkn_index;
+ token.use_cmd_file = 1;
+ }
+ else
+ p = parse_char (&token, 1);
+ UPDATE_TOKEN;
+ break;
+ case '/':
+ /* Unix path or VMS option start, read until non-path symbol */
+ if (assignment_hack != 0)
+ assignment_hack++;
+ if (assignment_hack > 2)
+ {
+ assignment_hack = 0; /* Reset */
+ if (use_pipe_cmd == nopipe) /* force pipe use */
+ use_pipe_cmd = add_pipe;
+ token_str[0] = ';'; /* add ; token */
+ token_str[1] = 0;
+ UPDATE_TOKEN;
+ }
+ p = parse_text (&token, assignment_hack);
+ UPDATE_TOKEN;
+ break;
+ case ':':
+ if ((p[1] == 0) || isspace (p[1]))
+ {
+ /* Unix Null command - treat as comment until next command */
+ unix_echo_cmd = 0;
+ p++;
+ while (*p != 0)
+ {
+ if (*p == ';')
+ {
+ /* Remove Null command from pipeline */
+ p++;
+ break;
+ }
+ p++;
+ }
+ break;
+ }
+
+ /* String assignment */
+ /* := :== or : */
+ if (p[1] != '=')
+ p = parse_char (&token, 1);
+ else if (p[2] != '=')
+ p = parse_char (&token, 2);
+ else
+ p = parse_char (&token, 3);
+ UPDATE_TOKEN;
+ break;
+ case '=':
+ /* = or == */
+ /* If this is not an echo statement, this could be a shell
+ assignment. VMS requires the target to be quoted if it
+ is not a macro substitution */
+ if (!unix_echo_cmd && vms_unix_simulation && (assignment_hack == 0))
+ assignment_hack = 1;
+ if (p[1] != '=')
+ p = parse_char (&token, 1);
+ else
+ p = parse_char (&token, 2);
+ UPDATE_TOKEN;
+ break;
+ case '+':
+ case '-':
+ case '*':
+ p = parse_char (&token, 1);
+ UPDATE_TOKEN;
+ break;
+ case '.':
+ /* .xxx. operation, VMS does not require the trailing . */
+ p = parse_text (&token, 0);
+ UPDATE_TOKEN;
+ break;
+ default:
+ /* Skip repetitive whitespace */
+ if (isspace (*p))
+ {
+ p = parse_char (&token, 1);
+
+ /* Force to a space or a tab */
+ if ((token_str[0] != ' ') ||
+ (token_str[0] != '\t'))
+ token_str[0] = ' ';
+ UPDATE_TOKEN;
+
+ while (isspace (*p))
+ p++;
+ if (assignment_hack != 0)
+ assignment_hack++;
+ break;
+ }
+
+ if (assignment_hack != 0)
+ assignment_hack++;
+ if (assignment_hack > 2)
+ {
+ assignment_hack = 0; /* Reset */
+ if (use_pipe_cmd == nopipe) /* force pipe use */
+ use_pipe_cmd = add_pipe;
+ token_str[0] = ';'; /* add ; token */
+ token_str[1] = 0;
+ UPDATE_TOKEN;
+ }
+ p = parse_text (&token, assignment_hack);
+ if (strncasecmp (token.text, "echo", 4) == 0)
+ unix_echo_cmd = 1;
+ else if (strncasecmp (token.text, "pipe", 4) == 0)
+ use_pipe_cmd = dcl_pipe;
+ UPDATE_TOKEN;
+ break;
+ }
+ }
+
+ /* End up here with a list of tokens to build a command line.
+ Deal with errors detected during parsing.
+ */
+ if (token.cmd_errno != 0)
+ {
+ while (cmd_tokens[cmd_tkn_index] == NULL)
+ free (cmd_tokens[cmd_tkn_index++]);
+ child->cstatus = VMS_POSIX_EXIT_MASK | (MAKE_TROUBLE << 3);
+ child->vms_launch_status = SS$_ABORT;
+ /* TODO what is this "magic number" */
+ child->pid = 270163; /* Special built-in */
+ child->efn = 0;
+ errno = token.cmd_errno;
+ return 0;
+ }
+
+ /* Save any redirection to append file */
+ if (append_token != -1)
+ {
+ int file_token;
+ char * lastdot;
+ char * lastdir;
+ char * raw_append_file;
+ file_token = append_token;
+ file_token++;
+ if (isspace (cmd_tokens[file_token][0]))
+ file_token++;
+ raw_append_file = vmsify (cmd_tokens[file_token], 0);
+ /* VMS DCL needs a trailing dot if null file extension */
+ lastdot = strrchr(raw_append_file, '.');
+ lastdir = strrchr(raw_append_file, ']');
+ if (lastdir == NULL)
+ lastdir = strrchr(raw_append_file, '>');
+ if (lastdir == NULL)
+ lastdir = strrchr(raw_append_file, ':');
+ if ((lastdot == NULL) || (lastdot > lastdir))
+ {
+ append_file = xmalloc (strlen (raw_append_file) + 1);
+ strcpy (append_file, raw_append_file);
+ strcat (append_file, ".");
+ }
+ else
+ append_file = strdup(raw_append_file);
+ }
+
+ cmd_dsc = build_vms_cmd (cmd_tokens, use_pipe_cmd, append_token);
+ if (cmd_dsc->dsc$a_pointer == NULL)
+ {
+ if (cmd_dsc->dsc$w_length < 0)
+ {
+ free (cmd_dsc);
+ child->cstatus = VMS_POSIX_EXIT_MASK | (MAKE_TROUBLE << 3);
+ child->vms_launch_status = SS$_ABORT;
+ /* TODO what is this "magic number" */
+ child->pid = 270163; /* Special built-in */
+ child->efn = 0;
+ return 0;
+ }
+
+ /* Only a built-in or a null command - Still need to run term AST */
+ free (cmd_dsc);
+ child->cstatus = VMS_POSIX_EXIT_MASK;
+ child->vms_launch_status = SS$_NORMAL;
+ /* TODO what is this "magic number" */
+ child->pid = 270163; /* Special built-in */
+ child->efn = 0;
+ vmsHandleChildTerm (child);
+ return 1;
+ }
+
+ if (cmd_dsc->dsc$w_length > MAX_DCL_LINE_LENGTH)
+ token.use_cmd_file = 1;
+
+ DB(DB_JOBS, (_("DCL: %s\n"), cmd_dsc->dsc$a_pointer));
+
+ /* Enforce the creation of a command file if "vms_always_use_cmd_file" is
+ non-zero.
+ Further, this way DCL reads the input stream and therefore does
+ 'forced' symbol substitution, which it doesn't do for one-liners when
+ they are 'lib$spawn'ed.
+
+ Otherwise the behavior is:
+
+ Create a *.com file if either the command is too long for
+ lib$spawn, or if a redirect appending to a file is desired, or
+ symbol substitition.
+ */
+
+ if (vms_always_use_cmd_file || token.use_cmd_file)
+ {
+ FILE *outfile;
+ int cmd_len;
+
+ outfile = output_tmpfile (&child->comname,
+ "sys$scratch:gnv$make_cmdXXXXXX.com");
+ /* 012345678901234567890 */
+ if (outfile == 0)
+ pfatal_with_name (_("fopen (temporary file)"));
+ comnamelen = strlen (child->comname);
+
+ /* The whole DCL "script" is executed as one action, and it behaves as
+ any DCL "script", that is errors stop it but warnings do not. Usually
+ the command on the last line, defines the exit code. However, with
+ redirections there is a prolog and possibly an epilog to implement
+ the redirection. Both are part of the script which is actually
+ executed. So if the redirection encounters an error in the prolog,
+ the user actions will not run; if in the epilog, the user actions
+ ran, but output is not captured. In both error cases, the error of
+ redirection is passed back and not the exit code of the actions. The
+ user should be able to enable DCL "script" verification with "set
+ verify". However, the prolog and epilog commands are not shown. Also,
+ if output redirection is used, the verification output is redirected
+ into that file as well. */
+ fprintf (outfile, "$ gnv$$make_verify = \"''f$verify(0)'\"\n");
+ fprintf (outfile, "$ gnv$$make_pid = f$getjpi(\"\",\"pid\")\n");
+ fprintf (outfile, "$ on error then $ goto gnv$$make_error\n");
+
+ /* Handle append redirection */
+ if (append_file != NULL)
+ {
+ /* If file does not exist, create it */
+ fprintf (outfile,
+ "$ gnv$$make_al = \"gnv$$make_append''gnv$$make_pid'\"\n");
+ fprintf (outfile,
+ "$ if f$search(\"%s\") .eqs. \"\" then create %s\n",
+ append_file, append_file);
+
+ fprintf (outfile,
+ "$ open/append 'gnv$$make_al' %s\n", append_file);
+
+ /* define sys$output to that file */
+ fprintf (outfile,
+ "$ define/user sys$output 'gnv$$make_al'\n");
+ DB (DB_JOBS, (_("Append output to %s\n"), append_file));
+ free(append_file);
+ }
+
+ fprintf (outfile, "$ gnv$$make_verify = f$verify(gnv$$make_verify)\n");
+
+ /* TODO:
+ Only for ONESHELL there will be several commands separated by
+ '\n'. But there can always be multiple continuation lines.
+ */
+
+ fprintf (outfile, "%s\n", cmd_dsc->dsc$a_pointer);
+ fprintf (outfile, "$ gnv$$make_status_2 = $status\n");
+ fprintf (outfile, "$ goto gnv$$make_exit\n");
+
+ /* Exit and clean up */
+ fprintf (outfile, "$ gnv$$make_error: ! 'f$verify(0)\n");
+ fprintf (outfile, "$ gnv$$make_status_2 = $status\n");
+
+ if (append_token != -1)
+ {
+ fprintf (outfile, "$ deassign sys$output\n");
+ fprintf (outfile, "$ close 'gnv$$make_al'\n");
+
+ DB (DB_JOBS,
+ (_("Append %.*s and cleanup\n"), comnamelen-3, child->comname));
+ }
+ fprintf (outfile, "$ gnv$$make_exit: ! 'f$verify(0)\n");
+ fprintf (outfile,
+ "$ exit 'gnv$$make_status_2' + (0*f$verify(gnv$$make_verify))\n");
+
+ fclose (outfile);
+
+ free (cmd_dsc->dsc$a_pointer);
+ cmd_dsc->dsc$a_pointer = xmalloc (256 + 4);
+ sprintf (cmd_dsc->dsc$a_pointer, "$ @%s", child->comname);
+ cmd_dsc->dsc$w_length = strlen (cmd_dsc->dsc$a_pointer);
+
+ DB (DB_JOBS, (_("Executing %s instead\n"), child->comname));
+ }
+
+ child->efn = 0;
+ while (child->efn < 32 || child->efn > 63)
+ {
+ status = LIB$GET_EF ((unsigned long *)&child->efn);
+ if (!$VMS_STATUS_SUCCESS (status))
+ {
+ if (child->comname)
+ {
+ if (!ISDB (DB_JOBS))
+ unlink (child->comname);
+ free (child->comname);
+ }
+ return 0;
+ }
+ }
+
+ SYS$CLREF (child->efn);
+
+ vms_jobsefnmask |= (1 << (child->efn - 32));
+
+ /* Export the child environment into DCL symbols */
+ if (child->environment != 0)
+ {
+ char **ep = child->environment;
+ while (*ep != 0)
+ {
+ vms_putenv_symbol (*ep);
+ *ep++;
+ }
+ }
+
+ /*
+ LIB$SPAWN [command-string]
+ [,input-file]
+ [,output-file]
+ [,flags]
+ [,process-name]
+ [,process-id] [,completion-status-address] [,byte-integer-event-flag-num]
+ [,AST-address] [,varying-AST-argument]
+ [,prompt-string] [,cli] [,table]
+ */
+
+#ifndef DONTWAITFORCHILD
+ /*
+ * Code to make ctrl+c and ctrl+y working.
+ * The problem starts with the synchronous case where after lib$spawn is
+ * called any input will go to the child. But with input re-directed,
+ * both control characters won't make it to any of the programs, neither
+ * the spawning nor to the spawned one. Hence the caller needs to spawn
+ * with CLI$M_NOWAIT to NOT give up the input focus. A sys$waitfr
+ * has to follow to simulate the wanted synchronous behaviour.
+ * The next problem is ctrl+y which isn't caught by the crtl and
+ * therefore isn't converted to SIGQUIT (for a signal handler which is
+ * already established). The only way to catch ctrl+y, is an AST
+ * assigned to the input channel. But ctrl+y handling of DCL needs to be
+ * disabled, otherwise it will handle it. Not to mention the previous
+ * ctrl+y handling of DCL needs to be re-established before make exits.
+ * One more: At the time of LIB$SPAWN signals are blocked. SIGQUIT will
+ * make it to the signal handler after the child "normally" terminates.
+ * This isn't enough. It seems reasonable for simple command lines like
+ * a 'cc foobar.c' spawned in a subprocess but it is unacceptable for
+ * spawning make. Therefore we need to abort the process in the AST.
+ *
+ * Prior to the spawn it is checked if an AST is already set up for
+ * ctrl+y, if not one is set up for a channel to SYS$COMMAND. In general
+ * this will work except if make is run in a batch environment, but there
+ * nobody can press ctrl+y. During the setup the DCL handling of ctrl+y
+ * is disabled and an exit handler is established to re-enable it.
+ * If the user interrupts with ctrl+y, the assigned AST will fire, force
+ * an abort to the subprocess and signal SIGQUIT, which will be caught by
+ * the already established handler and will bring us back to common code.
+ * After the spawn (now /nowait) a sys$waitfr simulates the /wait and
+ * enables the ctrl+y be delivered to this code. And the ctrl+c too,
+ * which the crtl converts to SIGINT and which is caught by the common
+ * signal handler. Because signals were blocked before entering this code
+ * sys$waitfr will always complete and the SIGQUIT will be processed after
+ * it (after termination of the current block, somewhere in common code).
+ * And SIGINT too will be delayed. That is ctrl+c can only abort when the
+ * current command completes. Anyway it's better than nothing :-)
+ */
+
+ if (!setupYAstTried)
+ tryToSetupYAst();
+ child->vms_launch_status = lib$spawn (cmd_dsc, /* cmd-string */
+ NULL, /* input-file */
+ NULL, /* output-file */
+ &spflags, /* flags */
+ &pnamedsc, /* proc name */
+ &child->pid, &child->cstatus, &child->efn,
+ 0, 0,
+ 0, 0, 0);
+
+ status = child->vms_launch_status;
+ if ($VMS_STATUS_SUCCESS (status))
+ {
+ status = sys$waitfr (child->efn);
+ vmsHandleChildTerm (child);
+ }
+#else
+ child->vms_launch_status = lib$spawn (cmd_dsc,
+ NULL,
+ NULL,
+ &spflags,
+ &pnamedsc,
+ &child->pid, &child->cstatus, &child->efn,
+ vmsHandleChildTerm, child,
+ 0, 0, 0);
+ status = child->vms_launch_status;
+#endif
+
+ /* Free the pointer if not a command file */
+ if (!vms_always_use_cmd_file && !token.use_cmd_file)
+ free (cmd_dsc->dsc$a_pointer);
+ free (cmd_dsc);
+
+ if (!$VMS_STATUS_SUCCESS (status))
+ {
+ switch (status)
+ {
+ case SS$_EXQUOTA:
+ errno = EPROCLIM;
+ break;
+ default:
+ errno = EFAIL;
+ }
+ }
+
+ /* Restore the VMS symbols that were changed */
+ if (child->environment != 0)
+ {
+ char **ep = child->environment;
+ while (*ep != 0)
+ {
+ vms_restore_symbol (*ep);
+ *ep++;
+ }
+ }
+
+ return (status & 1);
+}
diff --git a/vpath.c b/vpath.c
new file mode 100644
index 0000000..0c7dce3
--- /dev/null
+++ b/vpath.c
@@ -0,0 +1,637 @@
+/* Implementation of pattern-matching file search paths for GNU Make.
+Copyright (C) 1988-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include "filedef.h"
+#include "variable.h"
+#ifdef WINDOWS32
+#include "pathstuff.h"
+#endif
+
+
+/* Structure used to represent a selective VPATH searchpath. */
+
+struct vpath
+ {
+ struct vpath *next; /* Pointer to next struct in the linked list. */
+ const char *pattern;/* The pattern to match. */
+ const char *percent;/* Pointer into 'pattern' where the '%' is. */
+ unsigned int patlen;/* Length of the pattern. */
+ const char **searchpath; /* Null-terminated list of directories. */
+ unsigned int maxlen;/* Maximum length of any entry in the list. */
+ };
+
+/* Linked-list of all selective VPATHs. */
+
+static struct vpath *vpaths;
+
+/* Structure for the general VPATH given in the variable. */
+
+static struct vpath *general_vpath;
+
+/* Structure for GPATH given in the variable. */
+
+static struct vpath *gpaths;
+
+
+/* Reverse the chain of selective VPATH lists so they will be searched in the
+ order given in the makefiles and construct the list from the VPATH
+ variable. */
+
+void
+build_vpath_lists (void)
+{
+ register struct vpath *new = 0;
+ register struct vpath *old, *nexto;
+ register char *p;
+
+ /* Reverse the chain. */
+ for (old = vpaths; old != 0; old = nexto)
+ {
+ nexto = old->next;
+ old->next = new;
+ new = old;
+ }
+
+ vpaths = new;
+
+ /* If there is a VPATH variable with a nonnull value, construct the
+ general VPATH list from it. We use variable_expand rather than just
+ calling lookup_variable so that it will be recursively expanded. */
+
+ {
+ /* Turn off --warn-undefined-variables while we expand SHELL and IFS. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ p = variable_expand ("$(strip $(VPATH))");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ if (*p != '\0')
+ {
+ /* Save the list of vpaths. */
+ struct vpath *save_vpaths = vpaths;
+ char gp[] = "%";
+
+ /* Empty 'vpaths' so the new one will have no next, and 'vpaths'
+ will still be nil if P contains no existing directories. */
+ vpaths = 0;
+
+ /* Parse P. */
+ construct_vpath_list (gp, p);
+
+ /* Store the created path as the general path,
+ and restore the old list of vpaths. */
+ general_vpath = vpaths;
+ vpaths = save_vpaths;
+ }
+
+ /* If there is a GPATH variable with a nonnull value, construct the
+ GPATH list from it. We use variable_expand rather than just
+ calling lookup_variable so that it will be recursively expanded. */
+
+ {
+ /* Turn off --warn-undefined-variables while we expand SHELL and IFS. */
+ int save = warn_undefined_variables_flag;
+ warn_undefined_variables_flag = 0;
+
+ p = variable_expand ("$(strip $(GPATH))");
+
+ warn_undefined_variables_flag = save;
+ }
+
+ if (*p != '\0')
+ {
+ /* Save the list of vpaths. */
+ struct vpath *save_vpaths = vpaths;
+ char gp[] = "%";
+
+ /* Empty 'vpaths' so the new one will have no next, and 'vpaths'
+ will still be nil if P contains no existing directories. */
+ vpaths = 0;
+
+ /* Parse P. */
+ construct_vpath_list (gp, p);
+
+ /* Store the created path as the GPATH,
+ and restore the old list of vpaths. */
+ gpaths = vpaths;
+ vpaths = save_vpaths;
+ }
+}
+
+/* Construct the VPATH listing for the PATTERN and DIRPATH given.
+
+ This function is called to generate selective VPATH lists and also for
+ the general VPATH list (which is in fact just a selective VPATH that
+ is applied to everything). The returned pointer is either put in the
+ linked list of all selective VPATH lists or in the GENERAL_VPATH
+ variable.
+
+ If DIRPATH is nil, remove all previous listings with the same
+ pattern. If PATTERN is nil, remove all VPATH listings. Existing
+ and readable directories that are not "." given in the DIRPATH
+ separated by the path element separator (defined in makeint.h) are
+ loaded into the directory hash table if they are not there already
+ and put in the VPATH searchpath for the given pattern with trailing
+ slashes stripped off if present (and if the directory is not the
+ root, "/"). The length of the longest entry in the list is put in
+ the structure as well. The new entry will be at the head of the
+ VPATHS chain. */
+
+void
+construct_vpath_list (char *pattern, char *dirpath)
+{
+ unsigned int elem;
+ char *p;
+ const char **vpath;
+ unsigned int maxvpath;
+ unsigned int maxelem;
+ const char *percent = NULL;
+
+ if (pattern != 0)
+ percent = find_percent (pattern);
+
+ if (dirpath == 0)
+ {
+ /* Remove matching listings. */
+ struct vpath *path, *lastpath;
+
+ lastpath = 0;
+ path = vpaths;
+ while (path != 0)
+ {
+ struct vpath *next = path->next;
+
+ if (pattern == 0
+ || (((percent == 0 && path->percent == 0)
+ || (percent - pattern == path->percent - path->pattern))
+ && streq (pattern, path->pattern)))
+ {
+ /* Remove it from the linked list. */
+ if (lastpath == 0)
+ vpaths = path->next;
+ else
+ lastpath->next = next;
+
+ /* Free its unused storage. */
+ /* MSVC erroneously warns without a cast here. */
+ free ((void *)path->searchpath);
+ free (path);
+ }
+ else
+ lastpath = path;
+
+ path = next;
+ }
+
+ return;
+ }
+
+#ifdef WINDOWS32
+ convert_vpath_to_windows32 (dirpath, ';');
+#endif
+
+ /* Skip over any initial separators and blanks. */
+ while (STOP_SET (*dirpath, MAP_BLANK|MAP_PATHSEP))
+ ++dirpath;
+
+ /* Figure out the maximum number of VPATH entries and put it in
+ MAXELEM. We start with 2, one before the first separator and one
+ nil (the list terminator) and increment our estimated number for
+ each separator or blank we find. */
+ maxelem = 2;
+ p = dirpath;
+ while (*p != '\0')
+ if (STOP_SET (*p++, MAP_BLANK|MAP_PATHSEP))
+ ++maxelem;
+
+ vpath = xmalloc (maxelem * sizeof (const char *));
+ maxvpath = 0;
+
+ elem = 0;
+ p = dirpath;
+ while (*p != '\0')
+ {
+ char *v;
+ unsigned int len;
+
+ /* Find the end of this entry. */
+ v = p;
+ while (*p != '\0'
+#if defined(HAVE_DOS_PATHS) && (PATH_SEPARATOR_CHAR == ':')
+ /* Platforms whose PATH_SEPARATOR_CHAR is ':' and which
+ also define HAVE_DOS_PATHS would like us to recognize
+ colons after the drive letter in the likes of
+ "D:/foo/bar:C:/xyzzy". */
+ && (*p != PATH_SEPARATOR_CHAR
+ || (p == v + 1 && (p[1] == '/' || p[1] == '\\')))
+#else
+ && *p != PATH_SEPARATOR_CHAR
+#endif
+ && !ISBLANK (*p))
+ ++p;
+
+ len = p - v;
+ /* Make sure there's no trailing slash,
+ but still allow "/" as a directory. */
+#if defined(__MSDOS__) || defined(__EMX__) || defined(HAVE_DOS_PATHS)
+ /* We need also to leave alone a trailing slash in "d:/". */
+ if (len > 3 || (len > 1 && v[1] != ':'))
+#endif
+ if (len > 1 && p[-1] == '/')
+ --len;
+
+ /* Put the directory on the vpath list. */
+ if (len > 1 || *v != '.')
+ {
+ vpath[elem++] = dir_name (strcache_add_len (v, len));
+ if (len > maxvpath)
+ maxvpath = len;
+ }
+
+ /* Skip over separators and blanks between entries. */
+ while (STOP_SET (*p, MAP_BLANK|MAP_PATHSEP))
+ ++p;
+ }
+
+ if (elem > 0)
+ {
+ struct vpath *path;
+ /* ELEM is now incremented one element past the last
+ entry, to where the nil-pointer terminator goes.
+ Usually this is maxelem - 1. If not, shrink down. */
+ if (elem < (maxelem - 1))
+ vpath = xrealloc (vpath, (elem+1) * sizeof (const char *));
+
+ /* Put the nil-pointer terminator on the end of the VPATH list. */
+ vpath[elem] = NULL;
+
+ /* Construct the vpath structure and put it into the linked list. */
+ path = xmalloc (sizeof (struct vpath));
+ path->searchpath = vpath;
+ path->maxlen = maxvpath;
+ path->next = vpaths;
+ vpaths = path;
+
+ /* Set up the members. */
+ path->pattern = strcache_add (pattern);
+ path->patlen = strlen (pattern);
+ path->percent = percent ? path->pattern + (percent - pattern) : 0;
+ }
+ else
+ /* There were no entries, so free whatever space we allocated. */
+ /* MSVC erroneously warns without a cast here. */
+ free ((void *)vpath);
+}
+
+/* Search the GPATH list for a pathname string that matches the one passed
+ in. If it is found, return 1. Otherwise we return 0. */
+
+int
+gpath_search (const char *file, unsigned int len)
+{
+ if (gpaths && (len <= gpaths->maxlen))
+ {
+ const char **gp;
+ for (gp = gpaths->searchpath; *gp != NULL; ++gp)
+ if (strneq (*gp, file, len) && (*gp)[len] == '\0')
+ return 1;
+ }
+
+ return 0;
+}
+
+
+/* Search the given VPATH list for a directory where the name pointed to by
+ FILE exists. If it is found, we return a cached name of the existing file
+ and set *MTIME_PTR (if MTIME_PTR is not NULL) to its modtime (or zero if no
+ stat call was done). Also set the matching directory index in PATH_INDEX
+ if it is not NULL. Otherwise we return NULL. */
+
+static const char *
+selective_vpath_search (struct vpath *path, const char *file,
+ FILE_TIMESTAMP *mtime_ptr, unsigned int* path_index)
+{
+ int not_target;
+ char *name;
+ const char *n;
+ const char *filename;
+ const char **vpath = path->searchpath;
+ unsigned int maxvpath = path->maxlen;
+ unsigned int i;
+ unsigned int flen, name_dplen;
+ int exists = 0;
+
+ /* Find out if *FILE is a target.
+ If and only if it is NOT a target, we will accept prospective
+ files that don't exist but are mentioned in a makefile. */
+ {
+ struct file *f = lookup_file (file);
+ not_target = f == 0 || !f->is_target;
+ }
+
+ flen = strlen (file);
+
+ /* Split *FILE into a directory prefix and a name-within-directory.
+ NAME_DPLEN gets the length of the prefix; FILENAME gets the pointer to
+ the name-within-directory and FLEN is its length. */
+
+ n = strrchr (file, '/');
+#ifdef HAVE_DOS_PATHS
+ /* We need the rightmost slash or backslash. */
+ {
+ const char *bslash = strrchr (file, '\\');
+ if (!n || bslash > n)
+ n = bslash;
+ }
+#endif
+ name_dplen = n != 0 ? n - file : 0;
+ filename = name_dplen > 0 ? n + 1 : file;
+ if (name_dplen > 0)
+ flen -= name_dplen + 1;
+
+ /* Get enough space for the biggest VPATH entry, a slash, the directory
+ prefix that came with FILE, another slash (although this one may not
+ always be necessary), the filename, and a null terminator. */
+ name = alloca (maxvpath + 1 + name_dplen + 1 + flen + 1);
+
+ /* Try each VPATH entry. */
+ for (i = 0; vpath[i] != 0; ++i)
+ {
+ int exists_in_cache = 0;
+ char *p = name;
+ unsigned int vlen = strlen (vpath[i]);
+
+ /* Put the next VPATH entry into NAME at P and increment P past it. */
+ memcpy (p, vpath[i], vlen);
+ p += vlen;
+
+ /* Add the directory prefix already in *FILE. */
+ if (name_dplen > 0)
+ {
+#ifndef VMS
+ *p++ = '/';
+#else
+ /* VMS: if this is not in VMS format, treat as Unix format */
+ if ((*p != ':') && (*p != ']') && (*p != '>'))
+ *p++ = '/';
+#endif
+ memcpy (p, file, name_dplen);
+ p += name_dplen;
+ }
+
+#ifdef HAVE_DOS_PATHS
+ /* Cause the next if to treat backslash and slash alike. */
+ if (p != name && p[-1] == '\\' )
+ p[-1] = '/';
+#endif
+ /* Now add the name-within-directory at the end of NAME. */
+#ifndef VMS
+ if (p != name && p[-1] != '/')
+ {
+ *p = '/';
+ memcpy (p + 1, filename, flen + 1);
+ }
+ else
+#else
+ /* VMS use a slash if no directory terminator present */
+ if (p != name && p[-1] != '/' && p[-1] != ':' &&
+ p[-1] != '>' && p[-1] != ']')
+ {
+ *p = '/';
+ memcpy (p + 1, filename, flen + 1);
+ }
+ else
+#endif
+ memcpy (p, filename, flen + 1);
+
+ /* Check if the file is mentioned in a makefile. If *FILE is not
+ a target, that is enough for us to decide this file exists.
+ If *FILE is a target, then the file must be mentioned in the
+ makefile also as a target to be chosen.
+
+ The restriction that *FILE must not be a target for a
+ makefile-mentioned file to be chosen was added by an
+ inadequately commented change in July 1990; I am not sure off
+ hand what problem it fixes.
+
+ In December 1993 I loosened this restriction to allow a file
+ to be chosen if it is mentioned as a target in a makefile. This
+ seem logical.
+
+ Special handling for -W / -o: make sure we preserve the special
+ values here. Actually this whole thing is a little bogus: I think
+ we should ditch the name/hname thing and look into the renamed
+ capability that already exists for files: that is, have a new struct
+ file* entry for the VPATH-found file, and set the renamed field if
+ we use it.
+ */
+ {
+ struct file *f = lookup_file (name);
+ if (f != 0)
+ {
+ exists = not_target || f->is_target;
+ if (exists && mtime_ptr
+ && (f->last_mtime == OLD_MTIME || f->last_mtime == NEW_MTIME))
+ {
+ *mtime_ptr = f->last_mtime;
+ mtime_ptr = 0;
+ }
+ }
+ }
+
+ if (!exists)
+ {
+ /* That file wasn't mentioned in the makefile.
+ See if it actually exists. */
+
+#ifdef VMS
+ /* For VMS syntax just use the original vpath */
+ if (*p != '/')
+ exists_in_cache = exists = dir_file_exists_p (vpath[i], filename);
+ else
+#endif
+ {
+ /* Clobber a null into the name at the last slash.
+ Now NAME is the name of the directory to look in. */
+ *p = '\0';
+ /* We know the directory is in the hash table now because either
+ construct_vpath_list or the code just above put it there.
+ Does the file we seek exist in it? */
+ exists_in_cache = exists = dir_file_exists_p (name, filename);
+ }
+ }
+
+ if (exists)
+ {
+ /* The file is in the directory cache.
+ Now check that it actually exists in the filesystem.
+ The cache may be out of date. When vpath thinks a file
+ exists, but stat fails for it, confusion results in the
+ higher levels. */
+
+ struct stat st;
+
+#ifndef VMS
+ /* Put the slash back in NAME. */
+ *p = '/';
+#else
+ /* If the slash was removed, put it back */
+ if (*p == 0)
+ *p = '/';
+#endif
+
+ if (exists_in_cache) /* Makefile-mentioned file need not exist. */
+ {
+ int e;
+
+ EINTRLOOP (e, stat (name, &st)); /* Does it really exist? */
+ if (e != 0)
+ {
+ exists = 0;
+ continue;
+ }
+
+ /* Store the modtime into *MTIME_PTR for the caller. */
+ if (mtime_ptr != 0)
+ {
+ *mtime_ptr = FILE_TIMESTAMP_STAT_MODTIME (name, st);
+ mtime_ptr = 0;
+ }
+ }
+
+ /* We have found a file.
+ If we get here and mtime_ptr hasn't been set, record
+ UNKNOWN_MTIME to indicate this. */
+ if (mtime_ptr != 0)
+ *mtime_ptr = UNKNOWN_MTIME;
+
+ /* Store the name we found and return it. */
+
+ if (path_index)
+ *path_index = i;
+
+ return strcache_add_len (name, (p + 1 - name) + flen);
+ }
+ }
+
+ return 0;
+}
+
+
+/* Search the VPATH list whose pattern matches FILE for a directory where FILE
+ exists. If it is found, return the cached name of an existing file, and
+ set *MTIME_PTR (if MTIME_PTR is not NULL) to its modtime (or zero if no
+ stat call was done). Also set the matching directory index in VPATH_INDEX
+ and PATH_INDEX if they are not NULL. Otherwise we return 0. */
+
+const char *
+vpath_search (const char *file, FILE_TIMESTAMP *mtime_ptr,
+ unsigned int* vpath_index, unsigned int* path_index)
+{
+ struct vpath *v;
+
+ /* If there are no VPATH entries or FILENAME starts at the root,
+ there is nothing we can do. */
+
+ if (file[0] == '/'
+#ifdef HAVE_DOS_PATHS
+ || file[0] == '\\' || file[1] == ':'
+#endif
+ || (vpaths == 0 && general_vpath == 0))
+ return 0;
+
+ if (vpath_index)
+ {
+ *vpath_index = 0;
+ *path_index = 0;
+ }
+
+ for (v = vpaths; v != 0; v = v->next)
+ {
+ if (pattern_matches (v->pattern, v->percent, file))
+ {
+ const char *p = selective_vpath_search (
+ v, file, mtime_ptr, path_index);
+ if (p)
+ return p;
+ }
+
+ if (vpath_index)
+ ++*vpath_index;
+ }
+
+
+ if (general_vpath != 0)
+ {
+ const char *p = selective_vpath_search (
+ general_vpath, file, mtime_ptr, path_index);
+ if (p)
+ return p;
+ }
+
+ return 0;
+}
+
+
+
+
+/* Print the data base of VPATH search paths. */
+
+void
+print_vpath_data_base (void)
+{
+ unsigned int nvpaths;
+ struct vpath *v;
+
+ puts (_("\n# VPATH Search Paths\n"));
+
+ nvpaths = 0;
+ for (v = vpaths; v != 0; v = v->next)
+ {
+ register unsigned int i;
+
+ ++nvpaths;
+
+ printf ("vpath %s ", v->pattern);
+
+ for (i = 0; v->searchpath[i] != 0; ++i)
+ printf ("%s%c", v->searchpath[i],
+ v->searchpath[i + 1] == 0 ? '\n' : PATH_SEPARATOR_CHAR);
+ }
+
+ if (vpaths == 0)
+ puts (_("# No 'vpath' search paths."));
+ else
+ printf (_("\n# %u 'vpath' search paths.\n"), nvpaths);
+
+ if (general_vpath == 0)
+ puts (_("\n# No general ('VPATH' variable) search path."));
+ else
+ {
+ const char **path = general_vpath->searchpath;
+ unsigned int i;
+
+ fputs (_("\n# General ('VPATH' variable) search path:\n# "), stdout);
+
+ for (i = 0; path[i] != 0; ++i)
+ printf ("%s%c", path[i],
+ path[i + 1] == 0 ? '\n' : PATH_SEPARATOR_CHAR);
+ }
+}
diff --git a/w32/Makefile.am b/w32/Makefile.am
new file mode 100644
index 0000000..5527f77
--- /dev/null
+++ b/w32/Makefile.am
@@ -0,0 +1,26 @@
+# Makefile.am to create libw32.a for mingw32 host.
+# Copyright (C) 1997-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+AUTOMAKE_OPTIONS = subdir-objects
+
+noinst_LIBRARIES = libw32.a
+
+libw32_a_SOURCES = subproc/misc.c subproc/sub_proc.c subproc/w32err.c \
+ compat/posixfcn.c pathstuff.c w32os.c
+
+libw32_a_CPPFLAGS = -I$(srcdir)/include -I$(srcdir)/subproc -I$(top_srcdir) \
+ -I$(top_srcdir)/glob
diff --git a/w32/compat/dirent.c b/w32/compat/dirent.c
new file mode 100644
index 0000000..17f7d5f
--- /dev/null
+++ b/w32/compat/dirent.c
@@ -0,0 +1,206 @@
+/* Directory entry code for Window platforms.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+#include <config.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include "dirent.h"
+
+
+DIR*
+opendir(const char* pDirName)
+{
+ struct stat sb;
+ DIR* pDir;
+ char* pEndDirName;
+ int nBufferLen;
+
+ /* sanity checks */
+ if (!pDirName) {
+ errno = EINVAL;
+ return NULL;
+ }
+ if (stat(pDirName, &sb) != 0) {
+ errno = ENOENT;
+ return NULL;
+ }
+ if ((sb.st_mode & S_IFMT) != S_IFDIR) {
+ errno = ENOTDIR;
+ return NULL;
+ }
+
+ /* allocate a DIR structure to return */
+ pDir = (DIR *) malloc(sizeof (DIR));
+
+ if (!pDir)
+ return NULL;
+
+ /* input directory name length */
+ nBufferLen = strlen(pDirName);
+
+ /* copy input directory name to DIR buffer */
+ strcpy(pDir->dir_pDirectoryName, pDirName);
+
+ /* point to end of the copied directory name */
+ pEndDirName = &pDir->dir_pDirectoryName[nBufferLen - 1];
+
+ /* if directory name did not end in '/' or '\', add '/' */
+ if ((*pEndDirName != '/') && (*pEndDirName != '\\')) {
+ pEndDirName++;
+ *pEndDirName = '/';
+ }
+
+ /* now append the wildcard character to the buffer */
+ pEndDirName++;
+ *pEndDirName = '*';
+ pEndDirName++;
+ *pEndDirName = '\0';
+
+ /* other values defaulted */
+ pDir->dir_nNumFiles = 0;
+ pDir->dir_hDirHandle = INVALID_HANDLE_VALUE;
+ pDir->dir_ulCookie = __DIRENT_COOKIE;
+
+ return pDir;
+}
+
+void
+closedir(DIR *pDir)
+{
+ /* got a valid pointer? */
+ if (!pDir) {
+ errno = EINVAL;
+ return;
+ }
+
+ /* sanity check that this is a DIR pointer */
+ if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
+ errno = EINVAL;
+ return;
+ }
+
+ /* close the WINDOWS32 directory handle */
+ if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE)
+ FindClose(pDir->dir_hDirHandle);
+
+ free(pDir);
+
+ return;
+}
+
+struct dirent *
+readdir(DIR* pDir)
+{
+ WIN32_FIND_DATA wfdFindData;
+
+ if (!pDir) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /* sanity check that this is a DIR pointer */
+ if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ if (pDir->dir_nNumFiles == 0) {
+ pDir->dir_hDirHandle = FindFirstFile(pDir->dir_pDirectoryName, &wfdFindData);
+ if (pDir->dir_hDirHandle == INVALID_HANDLE_VALUE)
+ return NULL;
+ } else if (!FindNextFile(pDir->dir_hDirHandle, &wfdFindData))
+ return NULL;
+
+ /* bump count for next call to readdir() or telldir() */
+ pDir->dir_nNumFiles++;
+
+ /* fill in struct dirent values */
+ pDir->dir_sdReturn.d_ino = (ino_t)-1;
+ strcpy(pDir->dir_sdReturn.d_name, wfdFindData.cFileName);
+
+ return &pDir->dir_sdReturn;
+}
+
+void
+rewinddir(DIR* pDir)
+{
+ if (!pDir) {
+ errno = EINVAL;
+ return;
+ }
+
+ /* sanity check that this is a DIR pointer */
+ if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
+ errno = EINVAL;
+ return;
+ }
+
+ /* close the WINDOWS32 directory handle */
+ if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE)
+ if (!FindClose(pDir->dir_hDirHandle))
+ errno = EBADF;
+
+ /* reset members which control readdir() */
+ pDir->dir_hDirHandle = INVALID_HANDLE_VALUE;
+ pDir->dir_nNumFiles = 0;
+
+ return;
+}
+
+int
+telldir(DIR* pDir)
+{
+ if (!pDir) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* sanity check that this is a DIR pointer */
+ if (pDir->dir_ulCookie != __DIRENT_COOKIE) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* return number of times readdir() called */
+ return pDir->dir_nNumFiles;
+}
+
+void
+seekdir(DIR* pDir, long nPosition)
+{
+ if (!pDir)
+ return;
+
+ /* sanity check that this is a DIR pointer */
+ if (pDir->dir_ulCookie != __DIRENT_COOKIE)
+ return;
+
+ /* go back to beginning of directory */
+ rewinddir(pDir);
+
+ /* loop until we have found position we care about */
+ for (--nPosition; nPosition && readdir(pDir); nPosition--);
+
+ /* flag invalid nPosition value */
+ if (nPosition)
+ errno = EINVAL;
+
+ return;
+}
diff --git a/w32/compat/posixfcn.c b/w32/compat/posixfcn.c
new file mode 100644
index 0000000..c760cc8
--- /dev/null
+++ b/w32/compat/posixfcn.c
@@ -0,0 +1,486 @@
+/* Replacements for Posix functions and Posix functionality for MS-Windows.
+
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <string.h>
+#include <io.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <windows.h>
+
+#include "dlfcn.h"
+
+#include "makeint.h"
+#include "job.h"
+
+#ifndef NO_OUTPUT_SYNC
+/* Support for OUTPUT_SYNC and related functionality. */
+
+/* Emulation of fcntl that supports only F_GETFD and F_SETLKW. */
+int
+fcntl (intptr_t fd, int cmd, ...)
+{
+ va_list ap;
+
+ va_start (ap, cmd);
+
+ switch (cmd)
+ {
+ case F_GETFD:
+ va_end (ap);
+ /* Could have used GetHandleInformation, but that isn't
+ supported on Windows 9X. */
+ if (_get_osfhandle (fd) == -1)
+ return -1;
+ return 0;
+ case F_SETLKW:
+ {
+ void *buf = va_arg (ap, void *);
+ struct flock *fl = (struct flock *)buf;
+ HANDLE hmutex = (HANDLE)fd;
+ static struct flock last_fl;
+ short last_type = last_fl.l_type;
+
+ va_end (ap);
+
+ if (hmutex == INVALID_HANDLE_VALUE || !hmutex)
+ return -1;
+
+ last_fl = *fl;
+
+ switch (fl->l_type)
+ {
+
+ case F_WRLCK:
+ {
+ DWORD result;
+
+ if (last_type == F_WRLCK)
+ {
+ /* Don't call WaitForSingleObject if we already
+ own the mutex, because doing so will require
+ us to call ReleaseMutex an equal number of
+ times, before the mutex is actually
+ released. */
+ return 0;
+ }
+
+ result = WaitForSingleObject (hmutex, INFINITE);
+ switch (result)
+ {
+ case WAIT_OBJECT_0:
+ /* We don't care if the mutex owner crashed or
+ exited. */
+ case WAIT_ABANDONED:
+ return 0;
+ case WAIT_FAILED:
+ case WAIT_TIMEOUT: /* cannot happen, really */
+ {
+ DWORD err = GetLastError ();
+
+ /* Invalidate the last command. */
+ memset (&last_fl, 0, sizeof (last_fl));
+
+ switch (err)
+ {
+ case ERROR_INVALID_HANDLE:
+ case ERROR_INVALID_FUNCTION:
+ errno = EINVAL;
+ return -1;
+ default:
+ errno = EDEADLOCK;
+ return -1;
+ }
+ }
+ }
+ }
+ case F_UNLCK:
+ {
+ /* FIXME: Perhaps we should call ReleaseMutex
+ repatedly until it errors out, to make sure the
+ mutext is released even if we somehow managed to
+ to take ownership multiple times? */
+ BOOL status = ReleaseMutex (hmutex);
+
+ if (status)
+ return 0;
+ else
+ {
+ DWORD err = GetLastError ();
+
+ if (err == ERROR_NOT_OWNER)
+ errno = EPERM;
+ else
+ {
+ memset (&last_fl, 0, sizeof (last_fl));
+ errno = EINVAL;
+ }
+ return -1;
+ }
+ }
+ default:
+ errno = ENOSYS;
+ return -1;
+ }
+ }
+ default:
+ errno = ENOSYS;
+ va_end (ap);
+ return -1;
+ }
+}
+
+static intptr_t mutex_handle = -1;
+
+/* Record in a static variable the mutex handle we were requested to
+ use. That nameless mutex was created by the top-level Make, and
+ its handle was passed to us via inheritance. The value of that
+ handle is passed via the command-line arguments, so that we know
+ which handle to use. */
+void
+record_sync_mutex (const char *str)
+{
+ char *endp;
+ intptr_t hmutex = strtol (str, &endp, 16);
+
+ if (*endp == '\0')
+ mutex_handle = hmutex;
+ else
+ {
+ mutex_handle = -1;
+ errno = EINVAL;
+ }
+}
+
+/* Create a new mutex or reuse one created by our parent. */
+intptr_t
+create_mutex (void)
+{
+ SECURITY_ATTRIBUTES secattr;
+ intptr_t hmutex = -1;
+
+ /* If we have a mutex handle passed from the parent Make, just use
+ that. */
+ if (mutex_handle > 0)
+ return mutex_handle;
+
+ /* We are the top-level Make, and we want the handle to be inherited
+ by our child processes. */
+ secattr.nLength = sizeof (secattr);
+ secattr.lpSecurityDescriptor = NULL; /* use default security descriptor */
+ secattr.bInheritHandle = TRUE;
+
+ hmutex = (intptr_t)CreateMutex (&secattr, FALSE, NULL);
+ if (!hmutex)
+ {
+ DWORD err = GetLastError ();
+
+ fprintf (stderr, "CreateMutex: error %lu\n", err);
+ errno = ENOLCK;
+ hmutex = -1;
+ }
+
+ mutex_handle = hmutex;
+ return hmutex;
+}
+
+/* Return non-zero if F1 and F2 are 2 streams representing the same
+ file or pipe or device. */
+int
+same_stream (FILE *f1, FILE *f2)
+{
+ HANDLE fh1 = (HANDLE)_get_osfhandle (fileno (f1));
+ HANDLE fh2 = (HANDLE)_get_osfhandle (fileno (f2));
+
+ /* Invalid file descriptors get treated as different streams. */
+ if (fh1 && fh1 != INVALID_HANDLE_VALUE
+ && fh2 && fh2 != INVALID_HANDLE_VALUE)
+ {
+ if (fh1 == fh2)
+ return 1;
+ else
+ {
+ DWORD ftyp1 = GetFileType (fh1), ftyp2 = GetFileType (fh2);
+
+ if (ftyp1 != ftyp2
+ || ftyp1 == FILE_TYPE_UNKNOWN || ftyp2 == FILE_TYPE_UNKNOWN)
+ return 0;
+ else if (ftyp1 == FILE_TYPE_CHAR)
+ {
+ /* For character devices, check if they both refer to a
+ console. This loses if both handles refer to the
+ null device (FIXME!), but in that case we don't care
+ in the context of Make. */
+ DWORD conmode1, conmode2;
+
+ /* Each process on Windows can have at most 1 console,
+ so if both handles are for the console device, they
+ are the same. We also compare the console mode to
+ distinguish between stdin and stdout/stderr. */
+ if (GetConsoleMode (fh1, &conmode1)
+ && GetConsoleMode (fh2, &conmode2)
+ && conmode1 == conmode2)
+ return 1;
+ }
+ else
+ {
+ /* For disk files and pipes, compare their unique
+ attributes. */
+ BY_HANDLE_FILE_INFORMATION bhfi1, bhfi2;
+
+ /* Pipes get zero in the volume serial number, but do
+ appear to have meaningful information in file index
+ attributes. We test file attributes as well, for a
+ good measure. */
+ if (GetFileInformationByHandle (fh1, &bhfi1)
+ && GetFileInformationByHandle (fh2, &bhfi2))
+ return (bhfi1.dwVolumeSerialNumber == bhfi2.dwVolumeSerialNumber
+ && bhfi1.nFileIndexLow == bhfi2.nFileIndexLow
+ && bhfi1.nFileIndexHigh == bhfi2.nFileIndexHigh
+ && bhfi1.dwFileAttributes == bhfi2.dwFileAttributes);
+ }
+ }
+ }
+ return 0;
+}
+
+/* A replacement for tmpfile, since the MSVCRT implementation creates
+ the file in the root directory of the current drive, which might
+ not be writable by our user. Most of the code borrowed from
+ create_batch_file, see job.c. */
+FILE *
+tmpfile (void)
+{
+ char temp_path[MAXPATHLEN];
+ unsigned path_size = GetTempPath (sizeof temp_path, temp_path);
+ int path_is_dot = 0;
+ /* The following variable is static so we won't try to reuse a name
+ that was generated a little while ago, because that file might
+ not be on disk yet, since we use FILE_ATTRIBUTE_TEMPORARY below,
+ which tells the OS it doesn't need to flush the cache to disk.
+ If the file is not yet on disk, we might think the name is
+ available, while it really isn't. This happens in parallel
+ builds, where Make doesn't wait for one job to finish before it
+ launches the next one. */
+ static unsigned uniq = 0;
+ static int second_loop = 0;
+ const char base[] = "gmake_tmpf";
+ const unsigned sizemax = sizeof base - 1 + 4 + 10 + 10;
+ unsigned pid = GetCurrentProcessId ();
+
+ if (path_size == 0)
+ {
+ path_size = GetCurrentDirectory (sizeof temp_path, temp_path);
+ path_is_dot = 1;
+ }
+
+ ++uniq;
+ if (uniq >= 0x10000 && !second_loop)
+ {
+ /* If we already had 64K batch files in this
+ process, make a second loop through the numbers,
+ looking for free slots, i.e. files that were
+ deleted in the meantime. */
+ second_loop = 1;
+ uniq = 1;
+ }
+ while (path_size > 0 &&
+ path_size + sizemax < sizeof temp_path &&
+ !(uniq >= 0x10000 && second_loop))
+ {
+ HANDLE h;
+
+ sprintf (temp_path + path_size,
+ "%s%s%u-%x.tmp",
+ temp_path[path_size - 1] == '\\' ? "" : "\\",
+ base, pid, uniq);
+ h = CreateFile (temp_path, /* file name */
+ GENERIC_READ | GENERIC_WRITE | DELETE, /* desired access */
+ FILE_SHARE_READ | FILE_SHARE_WRITE, /* share mode */
+ NULL, /* default security attributes */
+ CREATE_NEW, /* creation disposition */
+ FILE_ATTRIBUTE_NORMAL | /* flags and attributes */
+ FILE_ATTRIBUTE_TEMPORARY |
+ FILE_FLAG_DELETE_ON_CLOSE,
+ NULL); /* no template file */
+
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ const DWORD er = GetLastError ();
+
+ if (er == ERROR_FILE_EXISTS || er == ERROR_ALREADY_EXISTS)
+ {
+ ++uniq;
+ if (uniq == 0x10000 && !second_loop)
+ {
+ second_loop = 1;
+ uniq = 1;
+ }
+ }
+
+ /* The temporary path is not guaranteed to exist, or might
+ not be writable by user. Use the current directory as
+ fallback. */
+ else if (path_is_dot == 0)
+ {
+ path_size = GetCurrentDirectory (sizeof temp_path, temp_path);
+ path_is_dot = 1;
+ }
+
+ else
+ {
+ errno = EACCES;
+ break;
+ }
+ }
+ else
+ {
+ int fd = _open_osfhandle ((intptr_t)h, 0);
+
+ return _fdopen (fd, "w+b");
+ }
+ }
+
+ if (uniq >= 0x10000)
+ errno = EEXIST;
+ return NULL;
+}
+
+#endif /* !NO_OUTPUT_SYNC */
+
+#if MAKE_LOAD
+
+/* Support for dynamic loading of objects. */
+
+
+static DWORD last_err;
+
+void *
+dlopen (const char *file, int mode)
+{
+ char dllfn[MAX_PATH], *p;
+ HANDLE dllhandle;
+
+ if ((mode & ~(RTLD_LAZY | RTLD_NOW | RTLD_GLOBAL)) != 0)
+ {
+ errno = EINVAL;
+ last_err = ERROR_INVALID_PARAMETER;
+ return NULL;
+ }
+
+ if (!file)
+ dllhandle = GetModuleHandle (NULL);
+ else
+ {
+ /* MSDN says to be sure to use backslashes in the DLL file name. */
+ strcpy (dllfn, file);
+ for (p = dllfn; *p; p++)
+ if (*p == '/')
+ *p = '\\';
+
+ dllhandle = LoadLibrary (dllfn);
+ }
+ if (!dllhandle)
+ last_err = GetLastError ();
+
+ return dllhandle;
+}
+
+char *
+dlerror (void)
+{
+ static char errbuf[1024];
+ DWORD ret;
+
+ if (!last_err)
+ return NULL;
+
+ ret = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM
+ | FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL, last_err, 0, errbuf, sizeof (errbuf), NULL);
+ while (ret > 0 && (errbuf[ret - 1] == '\n' || errbuf[ret - 1] == '\r'))
+ --ret;
+
+ errbuf[ret] = '\0';
+ if (!ret)
+ sprintf (errbuf, "Error code %lu", last_err);
+
+ last_err = 0;
+ return errbuf;
+}
+
+void *
+dlsym (void *handle, const char *name)
+{
+ FARPROC addr = NULL;
+
+ if (!handle || handle == INVALID_HANDLE_VALUE)
+ {
+ last_err = ERROR_INVALID_PARAMETER;
+ return NULL;
+ }
+
+ addr = GetProcAddress (handle, name);
+ if (!addr)
+ last_err = GetLastError ();
+
+ return (void *)addr;
+}
+
+int
+dlclose (void *handle)
+{
+ if (!handle || handle == INVALID_HANDLE_VALUE)
+ return -1;
+ if (!FreeLibrary (handle))
+ return -1;
+
+ return 0;
+}
+
+
+#endif /* MAKE_LOAD */
+
+
+/* MS runtime's isatty returns non-zero for any character device,
+ including the null device, which is not what we want. */
+int
+isatty (int fd)
+{
+ HANDLE fh = (HANDLE) _get_osfhandle (fd);
+ DWORD con_mode;
+
+ if (fh == INVALID_HANDLE_VALUE)
+ {
+ errno = EBADF;
+ return 0;
+ }
+ if (GetConsoleMode (fh, &con_mode))
+ return 1;
+
+ errno = ENOTTY;
+ return 0;
+}
+
+char *
+ttyname (int fd)
+{
+ /* This "knows" that Make only asks about stdout and stderr. A more
+ sophisticated implementation should test whether FD is open for
+ input or output. We can do that by looking at the mode returned
+ by GetConsoleMode. */
+ return "CONOUT$";
+}
diff --git a/w32/include/dirent.h b/w32/include/dirent.h
new file mode 100644
index 0000000..bae8449
--- /dev/null
+++ b/w32/include/dirent.h
@@ -0,0 +1,59 @@
+/* Windows version of dirent.h
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _DIRENT_H
+#define _DIRENT_H
+
+#ifdef __MINGW32__
+# include <windows.h>
+# include_next <dirent.h>
+#else
+
+#include <stdlib.h>
+#include <windows.h>
+#include <limits.h>
+#include <sys/types.h>
+
+#ifndef NAME_MAX
+#define NAME_MAX 255
+#endif
+
+#define __DIRENT_COOKIE 0xfefeabab
+
+
+struct dirent
+{
+ ino_t d_ino; /* unused - no equivalent on WINDOWS32 */
+ char d_name[NAME_MAX+1];
+};
+
+typedef struct dir_struct {
+ ULONG dir_ulCookie;
+ HANDLE dir_hDirHandle;
+ DWORD dir_nNumFiles;
+ char dir_pDirectoryName[NAME_MAX+1];
+ struct dirent dir_sdReturn;
+} DIR;
+
+DIR *opendir(const char *);
+struct dirent *readdir(DIR *);
+void rewinddir(DIR *);
+void closedir(DIR *);
+int telldir(DIR *);
+void seekdir(DIR *, long);
+
+#endif /* !__MINGW32__ */
+#endif
diff --git a/w32/include/dlfcn.h b/w32/include/dlfcn.h
new file mode 100644
index 0000000..5a2ae28
--- /dev/null
+++ b/w32/include/dlfcn.h
@@ -0,0 +1,29 @@
+/* dlfcn.h replacement for MS-Windows build.
+Copyright (C) 2013-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef DLFCN_H
+#define DLFCN_H
+
+#define RTLD_LAZY 1
+#define RTLD_NOW 2
+#define RTLD_GLOBAL 4
+
+extern void *dlopen (const char *, int);
+extern void *dlsym (void *, const char *);
+extern char *dlerror (void);
+extern int dlclose (void *);
+
+#endif /* DLFCN_H */
diff --git a/w32/include/pathstuff.h b/w32/include/pathstuff.h
new file mode 100644
index 0000000..923dc00
--- /dev/null
+++ b/w32/include/pathstuff.h
@@ -0,0 +1,25 @@
+/* Definitions for Windows path manipulation.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _PATHSTUFF_H
+#define _PATHSTUFF_H
+
+char *convert_Path_to_windows32(char *Path, char to_delim);
+char *convert_vpath_to_windows32(char *Path, char to_delim);
+char *w32ify(const char *file, int resolve);
+char *getcwd_fs(char *buf, int len);
+
+#endif
diff --git a/w32/include/sub_proc.h b/w32/include/sub_proc.h
new file mode 100644
index 0000000..4afa4b4
--- /dev/null
+++ b/w32/include/sub_proc.h
@@ -0,0 +1,62 @@
+/* Definitions for Windows process invocation.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef SUB_PROC_H
+#define SUB_PROC_H
+
+/*
+ * Component Name:
+ *
+ * $Date$
+ *
+ * $Source$
+ *
+ * $Id$
+ */
+
+#define EXTERN_DECL(entry, args) extern entry args
+#define VOID_DECL void
+
+EXTERN_DECL(HANDLE process_init, (VOID_DECL));
+EXTERN_DECL(HANDLE process_init_fd, (HANDLE stdinh, HANDLE stdouth,
+ HANDLE stderrh));
+EXTERN_DECL(long process_begin, (HANDLE proc, char **argv, char **envp,
+ char *exec_path, char *as_user));
+EXTERN_DECL(long process_pipe_io, (HANDLE proc, char *stdin_data,
+ int stdin_data_len));
+EXTERN_DECL(long process_file_io, (HANDLE proc));
+EXTERN_DECL(void process_cleanup, (HANDLE proc));
+EXTERN_DECL(HANDLE process_wait_for_any, (int block, DWORD* pdwWaitStatus));
+EXTERN_DECL(void process_register, (HANDLE proc));
+EXTERN_DECL(HANDLE process_easy, (char** argv, char** env,
+ int outfd, int errfd));
+EXTERN_DECL(BOOL process_kill, (HANDLE proc, int signal));
+EXTERN_DECL(int process_used_slots, (VOID_DECL));
+EXTERN_DECL(DWORD process_set_handles, (HANDLE *handles));
+
+/* support routines */
+EXTERN_DECL(long process_errno, (HANDLE proc));
+EXTERN_DECL(long process_last_err, (HANDLE proc));
+EXTERN_DECL(long process_exit_code, (HANDLE proc));
+EXTERN_DECL(long process_signal, (HANDLE proc));
+EXTERN_DECL(char * process_outbuf, (HANDLE proc));
+EXTERN_DECL(char * process_errbuf, (HANDLE proc));
+EXTERN_DECL(int process_outcnt, (HANDLE proc));
+EXTERN_DECL(int process_errcnt, (HANDLE proc));
+EXTERN_DECL(void process_pipes, (HANDLE proc, int pipes[3]));
+EXTERN_DECL(void process_noinherit, (int fildes));
+
+#endif
diff --git a/w32/include/w32err.h b/w32/include/w32err.h
new file mode 100644
index 0000000..b4292f2
--- /dev/null
+++ b/w32/include/w32err.h
@@ -0,0 +1,26 @@
+/* Definitions for Windows error handling.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _W32ERR_H_
+#define _W32ERR_H_
+
+#ifndef EXTERN_DECL
+#define EXTERN_DECL(entry, args) entry args
+#endif
+
+EXTERN_DECL(const char * map_windows32_error_to_string, (DWORD error));
+
+#endif /* !_W32ERR_H */
diff --git a/w32/pathstuff.c b/w32/pathstuff.c
new file mode 100644
index 0000000..9bd55e6
--- /dev/null
+++ b/w32/pathstuff.c
@@ -0,0 +1,266 @@
+/* Path conversion for Windows pathnames.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+#include <string.h>
+#include <stdlib.h>
+#include "pathstuff.h"
+
+/*
+ * Convert delimiter separated vpath to Canonical format.
+ */
+char *
+convert_vpath_to_windows32(char *Path, char to_delim)
+{
+ char *etok; /* token separator for old Path */
+
+ /*
+ * Convert all spaces to delimiters. Note that pathnames which
+ * contain blanks get trounced here. Use 8.3 format as a workaround.
+ */
+ for (etok = Path; etok && *etok; etok++)
+ if (ISBLANK ((unsigned char) *etok))
+ *etok = to_delim;
+
+ return (convert_Path_to_windows32(Path, to_delim));
+}
+
+/*
+ * Convert delimiter separated path to Canonical format.
+ */
+char *
+convert_Path_to_windows32(char *Path, char to_delim)
+{
+ char *etok; /* token separator for old Path */
+ char *p; /* points to element of old Path */
+
+ /* is this a multi-element Path ? */
+ /* FIXME: Perhaps use ":;\"" in strpbrk to convert all quotes to
+ delimiters as well, as a way to handle quoted directories in
+ PATH? */
+ for (p = Path, etok = strpbrk(p, ":;");
+ etok;
+ etok = strpbrk(p, ":;"))
+ if ((etok - p) == 1) {
+ if (*(etok - 1) == ';' ||
+ *(etok - 1) == ':') {
+ etok[-1] = to_delim;
+ etok[0] = to_delim;
+ p = ++etok;
+ continue; /* ignore empty bucket */
+ } else if (!isalpha ((unsigned char) *p)) {
+ /* found one to count, handle things like '.' */
+ *etok = to_delim;
+ p = ++etok;
+ } else if ((*etok == ':') && (etok = strpbrk(etok+1, ":;"))) {
+ /* found one to count, handle drive letter */
+ *etok = to_delim;
+ p = ++etok;
+ } else
+ /* all finished, force abort */
+ p += strlen(p);
+ } else if (*p == '"') { /* a quoted directory */
+ for (p++; *p && *p != '"'; p++) /* skip quoted part */
+ ;
+ etok = strpbrk(p, ":;"); /* find next delimiter */
+ if (etok) {
+ *etok = to_delim;
+ p = ++etok;
+ } else
+ p += strlen(p);
+ } else {
+ /* found another one, no drive letter */
+ *etok = to_delim;
+ p = ++etok;
+ }
+
+ return Path;
+}
+
+/*
+ * Convert to forward slashes. Resolve to full pathname optionally
+ */
+char *
+w32ify(const char *filename, int resolve)
+{
+ static char w32_path[FILENAME_MAX];
+ char *p;
+
+ if (resolve)
+ _fullpath(w32_path, filename, sizeof (w32_path));
+ else
+ strncpy(w32_path, filename, sizeof (w32_path));
+
+ for (p = w32_path; p && *p; p++)
+ if (*p == '\\')
+ *p = '/';
+
+ return w32_path;
+}
+
+char *
+getcwd_fs(char* buf, int len)
+{
+ char *p = getcwd(buf, len);
+
+ if (p) {
+ char *q = w32ify(buf, 0);
+ strncpy(buf, q, len);
+ }
+
+ return p;
+}
+
+#ifdef unused
+/*
+ * Convert delimiter separated pathnames (e.g. PATH) or single file pathname
+ * (e.g. c:/foo, c:\bar) to NutC format. If we are handed a string that
+ * _NutPathToNutc() fails to convert, just return the path we were handed
+ * and assume the caller will know what to do with it (It was probably
+ * a mistake to try and convert it anyway due to some of the bizarre things
+ * that might look like pathnames in makefiles).
+ */
+char *
+convert_path_to_nutc(char *path)
+{
+ int count; /* count of path elements */
+ char *nutc_path; /* new NutC path */
+ int nutc_path_len; /* length of buffer to allocate for new path */
+ char *pathp; /* pointer to nutc_path used to build it */
+ char *etok; /* token separator for old path */
+ char *p; /* points to element of old path */
+ char sep; /* what flavor of separator used in old path */
+ char *rval;
+
+ /* is this a multi-element path ? */
+ for (p = path, etok = strpbrk(p, ":;"), count = 0;
+ etok;
+ etok = strpbrk(p, ":;"))
+ if ((etok - p) == 1) {
+ if (*(etok - 1) == ';' ||
+ *(etok - 1) == ':') {
+ p = ++etok;
+ continue; /* ignore empty bucket */
+ } else if (etok = strpbrk(etok+1, ":;"))
+ /* found one to count, handle drive letter */
+ p = ++etok, count++;
+ else
+ /* all finished, force abort */
+ p += strlen(p);
+ } else
+ /* found another one, no drive letter */
+ p = ++etok, count++;
+
+ if (count) {
+ count++; /* x1;x2;x3 <- need to count x3 */
+
+ /*
+ * Hazard a guess on how big the buffer needs to be.
+ * We have to convert things like c:/foo to /c=/foo.
+ */
+ nutc_path_len = strlen(path) + (count*2) + 1;
+ nutc_path = xmalloc(nutc_path_len);
+ pathp = nutc_path;
+ *pathp = '\0';
+
+ /*
+ * Loop through PATH and convert one elemnt of the path at at
+ * a time. Single file pathnames will fail this and fall
+ * to the logic below loop.
+ */
+ for (p = path, etok = strpbrk(p, ":;");
+ etok;
+ etok = strpbrk(p, ":;")) {
+
+ /* don't trip up on device specifiers or empty path slots */
+ if ((etok - p) == 1)
+ if (*(etok - 1) == ';' ||
+ *(etok - 1) == ':') {
+ p = ++etok;
+ continue;
+ } else if ((etok = strpbrk(etok+1, ":;")) == NULL)
+ break; /* thing found was a WINDOWS32 pathname */
+
+ /* save separator */
+ sep = *etok;
+
+ /* terminate the current path element -- temporarily */
+ *etok = '\0';
+
+#ifdef __NUTC__
+ /* convert to NutC format */
+ if (_NutPathToNutc(p, pathp, 0) == FALSE) {
+ free(nutc_path);
+ rval = savestring(path, strlen(path));
+ return rval;
+ }
+#else
+ *pathp++ = '/';
+ *pathp++ = p[0];
+ *pathp++ = '=';
+ *pathp++ = '/';
+ strcpy(pathp, &p[2]);
+#endif
+
+ pathp += strlen(pathp);
+ *pathp++ = ':'; /* use Unix style path separtor for new path */
+ *pathp = '\0'; /* make sure we are null terminaed */
+
+ /* restore path separator */
+ *etok = sep;
+
+ /* point p to first char of next path element */
+ p = ++etok;
+
+ }
+ } else {
+ nutc_path_len = strlen(path) + 3;
+ nutc_path = xmalloc(nutc_path_len);
+ pathp = nutc_path;
+ *pathp = '\0';
+ p = path;
+ }
+
+ /*
+ * OK, here we handle the last element in PATH (e.g. c of a;b;c)
+ * or the path was a single filename and will be converted
+ * here. Note, testing p here assures that we don't trip up
+ * on paths like a;b; which have trailing delimiter followed by
+ * nothing.
+ */
+ if (*p != '\0') {
+#ifdef __NUTC__
+ if (_NutPathToNutc(p, pathp, 0) == FALSE) {
+ free(nutc_path);
+ rval = savestring(path, strlen(path));
+ return rval;
+ }
+#else
+ *pathp++ = '/';
+ *pathp++ = p[0];
+ *pathp++ = '=';
+ *pathp++ = '/';
+ strcpy(pathp, &p[2]);
+#endif
+ } else
+ *(pathp-1) = '\0'; /* we're already done, don't leave trailing : */
+
+ rval = savestring(nutc_path, strlen(nutc_path));
+ free(nutc_path);
+ return rval;
+}
+
+#endif
diff --git a/w32/subproc/NMakefile b/w32/subproc/NMakefile
new file mode 100644
index 0000000..325e55c
--- /dev/null
+++ b/w32/subproc/NMakefile
@@ -0,0 +1,60 @@
+# NOTE: If you have no 'make' program at all to process this makefile, run
+# 'build.bat' instead.
+#
+# Copyright (C) 1996-2016 Free Software Foundation, Inc.
+# This file is part of GNU Make.
+#
+# GNU Make is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+#
+# NMakefile for GNU Make (subproc library)
+#
+LIB = lib
+CC = cl
+MAKE = nmake
+
+OUTDIR=.
+MAKEFILE=NMakefile
+
+CFLAGS_any = /nologo /MT /W4 /GX /Z7 /YX /D WIN32 /D WINDOWS32 /D _WINDOWS -I. -I../include -I../../
+CFLAGS_debug = $(CFLAGS_any) /Od /D _DEBUG /FR.\WinDebug\ /Fp.\WinDebug\subproc.pch /Fo.\WinDebug/
+CFLAGS_release = $(CFLAGS_any) /O2 /FR.\WinRel\ /Fp.\WinRel\subproc.pch /Fo.\WinRel/
+
+all: Release Debug
+
+Release:
+ $(MAKE) /f $(MAKEFILE) OUTDIR=WinRel CFLAGS="$(CFLAGS_release)" WinRel/subproc.lib
+Debug:
+ $(MAKE) /f $(MAKEFILE) OUTDIR=WinDebug CFLAGS="$(CFLAGS_debug)" WinDebug/subproc.lib
+
+clean:
+ rmdir /s /q WinRel WinDebug
+ erase *.pdb
+
+$(OUTDIR):
+ if not exist .\$@\nul mkdir .\$@
+
+OBJS = $(OUTDIR)/misc.obj $(OUTDIR)/w32err.obj $(OUTDIR)/sub_proc.obj
+
+$(OUTDIR)/subproc.lib: $(OUTDIR) $(OBJS)
+ $(LIB) -out:$@ @<<
+ $(OBJS)
+<<
+
+.c{$(OUTDIR)}.obj:
+ $(CC) $(CFLAGS) /c $<
+
+$(OUTDIR)/misc.obj: misc.c proc.h
+$(OUTDIR)/sub_proc.obj: sub_proc.c ../include/sub_proc.h ../include/w32err.h proc.h
+$(OUTDIR)/w32err.obj: w32err.c ../include/w32err.h
diff --git a/w32/subproc/misc.c b/w32/subproc/misc.c
new file mode 100644
index 0000000..8b17413
--- /dev/null
+++ b/w32/subproc/misc.c
@@ -0,0 +1,83 @@
+/* Process handling for Windows
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <windows.h>
+#include "proc.h"
+
+
+/*
+ * Description: Convert a NULL string terminated UNIX environment block to
+ * an environment block suitable for a windows32 system call
+ *
+ * Returns: TRUE= success, FALSE=fail
+ *
+ * Notes/Dependencies: the environment block is sorted in case-insensitive
+ * order, is double-null terminated, and is a char *, not a char **
+ */
+int _cdecl compare(const void *a1, const void *a2)
+{
+ return _stricoll(*((char**)a1),*((char**)a2));
+}
+bool_t
+arr2envblk(char **arr, char **envblk_out, int *envsize_needed)
+{
+ char **tmp;
+ int size_needed;
+ int arrcnt;
+ char *ptr;
+
+ arrcnt = 0;
+ while (arr[arrcnt]) {
+ arrcnt++;
+ }
+
+ tmp = (char**) calloc(arrcnt + 1, sizeof(char *));
+ if (!tmp) {
+ return FALSE;
+ }
+
+ arrcnt = 0;
+ size_needed = *envsize_needed = 0;
+ while (arr[arrcnt]) {
+ tmp[arrcnt] = arr[arrcnt];
+ size_needed += strlen(arr[arrcnt]) + 1;
+ arrcnt++;
+ }
+ size_needed++;
+ *envsize_needed = size_needed;
+
+ qsort((void *) tmp, (size_t) arrcnt, sizeof (char*), compare);
+
+ ptr = *envblk_out = calloc(size_needed, 1);
+ if (!ptr) {
+ free(tmp);
+ return FALSE;
+ }
+
+ arrcnt = 0;
+ while (tmp[arrcnt]) {
+ strcpy(ptr, tmp[arrcnt]);
+ ptr += strlen(tmp[arrcnt]) + 1;
+ arrcnt++;
+ }
+
+ free(tmp);
+ return TRUE;
+}
diff --git a/w32/subproc/proc.h b/w32/subproc/proc.h
new file mode 100644
index 0000000..7ccb5ea
--- /dev/null
+++ b/w32/subproc/proc.h
@@ -0,0 +1,29 @@
+/* Definitions for Windows
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _PROC_H
+#define _PROC_H
+
+typedef int bool_t;
+
+#define E_SCALL 101
+#define E_IO 102
+#define E_NO_MEM 103
+#define E_FORK 104
+
+extern bool_t arr2envblk(char **arr, char **envblk_out, int *envsize_needed);
+
+#endif
diff --git a/w32/subproc/sub_proc.c b/w32/subproc/sub_proc.c
new file mode 100644
index 0000000..d34e840
--- /dev/null
+++ b/w32/subproc/sub_proc.c
@@ -0,0 +1,1482 @@
+/* Process handling for Windows.
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <io.h> /* for _get_osfhandle */
+#ifdef _MSC_VER
+# include <stddef.h> /* for intptr_t */
+#else
+# include <stdint.h>
+#endif
+#include <string.h>
+#include <process.h> /* for msvc _beginthreadex, _endthreadex */
+#include <signal.h>
+#include <windows.h>
+
+#include "makeint.h"
+#include "filedef.h"
+#include "variable.h"
+#include "sub_proc.h"
+#include "proc.h"
+#include "w32err.h"
+#include "debug.h"
+
+static char *make_command_line(char *shell_name, char *exec_path, char **argv);
+
+typedef struct sub_process_t {
+ intptr_t sv_stdin[2];
+ intptr_t sv_stdout[2];
+ intptr_t sv_stderr[2];
+ int using_pipes;
+ char *inp;
+ DWORD incnt;
+ char * volatile outp;
+ volatile DWORD outcnt;
+ char * volatile errp;
+ volatile DWORD errcnt;
+ pid_t pid;
+ int exit_code;
+ int signal;
+ long last_err;
+ long lerrno;
+} sub_process;
+
+/* keep track of children so we can implement a waitpid-like routine */
+static sub_process *proc_array[MAXIMUM_WAIT_OBJECTS];
+static int proc_index = 0;
+static int fake_exits_pending = 0;
+
+
+/*
+ * Fill a HANDLE list with handles to wait for.
+ */
+DWORD
+process_set_handles(HANDLE *handles)
+{
+ DWORD count = 0;
+ int i;
+
+ /* Build array of handles to wait for */
+ for (i = 0; i < proc_index; i++) {
+ /* Don't wait on child processes that have already finished */
+ if (fake_exits_pending && proc_array[i]->exit_code)
+ continue;
+
+ handles[count++] = (HANDLE) proc_array[i]->pid;
+ }
+
+ return count;
+}
+
+/*
+ * When a process has been waited for, adjust the wait state
+ * array so that we don't wait for it again
+ */
+static void
+process_adjust_wait_state(sub_process* pproc)
+{
+ int i;
+
+ if (!proc_index)
+ return;
+
+ for (i = 0; i < proc_index; i++)
+ if (proc_array[i]->pid == pproc->pid)
+ break;
+
+ if (i < proc_index) {
+ proc_index--;
+ if (i != proc_index)
+ memmove(&proc_array[i], &proc_array[i+1],
+ (proc_index-i) * sizeof(sub_process*));
+ proc_array[proc_index] = NULL;
+ }
+}
+
+/*
+ * Waits for any of the registered child processes to finish.
+ */
+static sub_process *
+process_wait_for_any_private(int block, DWORD* pdwWaitStatus)
+{
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ DWORD retval, which;
+ int i;
+
+ if (!proc_index)
+ return NULL;
+
+ /* build array of handles to wait for */
+ for (i = 0; i < proc_index; i++) {
+ handles[i] = (HANDLE) proc_array[i]->pid;
+
+ if (fake_exits_pending && proc_array[i]->exit_code)
+ break;
+ }
+
+ /* wait for someone to exit */
+ if (!fake_exits_pending) {
+ retval = WaitForMultipleObjects(proc_index, handles, FALSE, (block ? INFINITE : 0));
+ which = retval - WAIT_OBJECT_0;
+ } else {
+ fake_exits_pending--;
+ retval = !WAIT_FAILED;
+ which = i;
+ }
+
+ /* If the pointer is not NULL, set the wait status result variable. */
+ if (pdwWaitStatus)
+ *pdwWaitStatus = retval;
+
+ /* return pointer to process */
+ if ((retval == WAIT_TIMEOUT) || (retval == WAIT_FAILED)) {
+ return NULL;
+ }
+ else {
+ sub_process* pproc = proc_array[which];
+ process_adjust_wait_state(pproc);
+ return pproc;
+ }
+}
+
+/*
+ * Terminate a process.
+ */
+BOOL
+process_kill(HANDLE proc, int signal)
+{
+ sub_process* pproc = (sub_process*) proc;
+ pproc->signal = signal;
+ return (TerminateProcess((HANDLE) pproc->pid, signal));
+}
+
+/*
+ * Use this function to register processes you wish to wait for by
+ * calling process_file_io(NULL) or process_wait_any(). This must be done
+ * because it is possible for callers of this library to reuse the same
+ * handle for multiple processes launches :-(
+ */
+void
+process_register(HANDLE proc)
+{
+ if (proc_index < MAXIMUM_WAIT_OBJECTS)
+ proc_array[proc_index++] = (sub_process *) proc;
+}
+
+/*
+ * Return the number of processes that we are still waiting for.
+ */
+int
+process_used_slots(void)
+{
+ return proc_index;
+}
+
+/*
+ * Public function which works kind of like waitpid(). Wait for any
+ * of the children to die and return results. To call this function,
+ * you must do 1 of things:
+ *
+ * x = process_easy(...);
+ *
+ * or
+ *
+ * x = process_init_fd();
+ * process_register(x);
+ *
+ * or
+ *
+ * x = process_init();
+ * process_register(x);
+ *
+ * You must NOT then call process_pipe_io() because this function is
+ * not capable of handling automatic notification of any child
+ * death.
+ */
+
+HANDLE
+process_wait_for_any(int block, DWORD* pdwWaitStatus)
+{
+ sub_process* pproc = process_wait_for_any_private(block, pdwWaitStatus);
+
+ if (!pproc)
+ return NULL;
+ else {
+ /*
+ * Ouch! can't tell caller if this fails directly. Caller
+ * will have to use process_last_err()
+ */
+ (void) process_file_io(pproc);
+ return ((HANDLE) pproc);
+ }
+}
+
+long
+process_signal(HANDLE proc)
+{
+ if (proc == INVALID_HANDLE_VALUE) return 0;
+ return (((sub_process *)proc)->signal);
+}
+
+long
+process_last_err(HANDLE proc)
+{
+ if (proc == INVALID_HANDLE_VALUE) return ERROR_INVALID_HANDLE;
+ return (((sub_process *)proc)->last_err);
+}
+
+long
+process_exit_code(HANDLE proc)
+{
+ if (proc == INVALID_HANDLE_VALUE) return EXIT_FAILURE;
+ return (((sub_process *)proc)->exit_code);
+}
+
+void
+process_noinherit(int fd)
+{
+ HANDLE fh = (HANDLE)_get_osfhandle(fd);
+
+ if (fh && fh != INVALID_HANDLE_VALUE)
+ SetHandleInformation(fh, HANDLE_FLAG_INHERIT, 0);
+}
+
+/*
+2006-02:
+All the following functions are currently unused.
+All of them would crash gmake if called with argument INVALID_HANDLE_VALUE.
+Hence whoever wants to use one of this functions must invent and implement
+a reasonable error handling for this function.
+
+char *
+process_outbuf(HANDLE proc)
+{
+ return (((sub_process *)proc)->outp);
+}
+
+char *
+process_errbuf(HANDLE proc)
+{
+ return (((sub_process *)proc)->errp);
+}
+
+int
+process_outcnt(HANDLE proc)
+{
+ return (((sub_process *)proc)->outcnt);
+}
+
+int
+process_errcnt(HANDLE proc)
+{
+ return (((sub_process *)proc)->errcnt);
+}
+
+void
+process_pipes(HANDLE proc, int pipes[3])
+{
+ pipes[0] = ((sub_process *)proc)->sv_stdin[0];
+ pipes[1] = ((sub_process *)proc)->sv_stdout[0];
+ pipes[2] = ((sub_process *)proc)->sv_stderr[0];
+ return;
+}
+*/
+
+ HANDLE
+process_init()
+{
+ sub_process *pproc;
+ /*
+ * open file descriptors for attaching stdin/stdout/sterr
+ */
+ HANDLE stdin_pipes[2];
+ HANDLE stdout_pipes[2];
+ HANDLE stderr_pipes[2];
+ SECURITY_ATTRIBUTES inherit;
+ BYTE sd[SECURITY_DESCRIPTOR_MIN_LENGTH];
+
+ pproc = malloc(sizeof(*pproc));
+ memset(pproc, 0, sizeof(*pproc));
+
+ /* We can't use NULL for lpSecurityDescriptor because that
+ uses the default security descriptor of the calling process.
+ Instead we use a security descriptor with no DACL. This
+ allows nonrestricted access to the associated objects. */
+
+ if (!InitializeSecurityDescriptor((PSECURITY_DESCRIPTOR)(&sd),
+ SECURITY_DESCRIPTOR_REVISION)) {
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ return((HANDLE)pproc);
+ }
+
+ inherit.nLength = sizeof(inherit);
+ inherit.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR)(&sd);
+ inherit.bInheritHandle = TRUE;
+
+ // By convention, parent gets pipe[0], and child gets pipe[1]
+ // This means the READ side of stdin pipe goes into pipe[1]
+ // and the WRITE side of the stdout and stderr pipes go into pipe[1]
+ if (CreatePipe( &stdin_pipes[1], &stdin_pipes[0], &inherit, 0) == FALSE ||
+ CreatePipe( &stdout_pipes[0], &stdout_pipes[1], &inherit, 0) == FALSE ||
+ CreatePipe( &stderr_pipes[0], &stderr_pipes[1], &inherit, 0) == FALSE) {
+
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ return((HANDLE)pproc);
+ }
+
+ //
+ // Mark the parent sides of the pipes as non-inheritable
+ //
+ if (SetHandleInformation(stdin_pipes[0],
+ HANDLE_FLAG_INHERIT, 0) == FALSE ||
+ SetHandleInformation(stdout_pipes[0],
+ HANDLE_FLAG_INHERIT, 0) == FALSE ||
+ SetHandleInformation(stderr_pipes[0],
+ HANDLE_FLAG_INHERIT, 0) == FALSE) {
+
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ return((HANDLE)pproc);
+ }
+ pproc->sv_stdin[0] = (intptr_t) stdin_pipes[0];
+ pproc->sv_stdin[1] = (intptr_t) stdin_pipes[1];
+ pproc->sv_stdout[0] = (intptr_t) stdout_pipes[0];
+ pproc->sv_stdout[1] = (intptr_t) stdout_pipes[1];
+ pproc->sv_stderr[0] = (intptr_t) stderr_pipes[0];
+ pproc->sv_stderr[1] = (intptr_t) stderr_pipes[1];
+
+ pproc->using_pipes = 1;
+
+ pproc->lerrno = 0;
+
+ return((HANDLE)pproc);
+}
+
+
+ HANDLE
+process_init_fd(HANDLE stdinh, HANDLE stdouth, HANDLE stderrh)
+{
+ sub_process *pproc;
+
+ pproc = malloc(sizeof(*pproc));
+ if (pproc) {
+ memset(pproc, 0, sizeof(*pproc));
+
+ /*
+ * Just pass the provided file handles to the 'child
+ * side' of the pipe, bypassing pipes altogether.
+ */
+ pproc->sv_stdin[1] = (intptr_t) stdinh;
+ pproc->sv_stdout[1] = (intptr_t) stdouth;
+ pproc->sv_stderr[1] = (intptr_t) stderrh;
+
+ pproc->last_err = pproc->lerrno = 0;
+ }
+
+ return((HANDLE)pproc);
+}
+
+
+static HANDLE
+find_file(const char *exec_path, const char *path_var,
+ char *full_fname, DWORD full_len)
+{
+ HANDLE exec_handle;
+ char *fname;
+ char *ext;
+ DWORD req_len;
+ int i;
+ static const char *extensions[] =
+ /* Should .com come before no-extension case? */
+ { ".exe", ".cmd", ".bat", "", ".com", NULL };
+
+ fname = xmalloc(strlen(exec_path) + 5);
+ strcpy(fname, exec_path);
+ ext = fname + strlen(fname);
+
+ for (i = 0; extensions[i]; i++) {
+ strcpy(ext, extensions[i]);
+ if (((req_len = SearchPath (path_var, fname, NULL, full_len,
+ full_fname, NULL)) > 0
+ /* For compatibility with previous code, which
+ used OpenFile, and with Windows operation in
+ general, also look in various default
+ locations, such as Windows directory and
+ Windows System directory. Warning: this also
+ searches PATH in the Make's environment, which
+ might not be what the Makefile wants, but it
+ seems to be OK as a fallback, after the
+ previous SearchPath failed to find on child's
+ PATH. */
+ || (req_len = SearchPath (NULL, fname, NULL, full_len,
+ full_fname, NULL)) > 0)
+ && req_len <= full_len
+ && (exec_handle =
+ CreateFile(full_fname,
+ GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL)) != INVALID_HANDLE_VALUE) {
+ free(fname);
+ return(exec_handle);
+ }
+ }
+
+ free(fname);
+ return INVALID_HANDLE_VALUE;
+}
+
+/*
+ * Return non-zero of FNAME specifies a batch file and its name
+ * includes embedded whitespace.
+ */
+
+static int
+batch_file_with_spaces(const char *fname)
+{
+ size_t fnlen = strlen(fname);
+
+ return (fnlen > 4
+ && (_strnicmp(fname + fnlen - 4, ".bat", 4) == 0
+ || _strnicmp(fname + fnlen - 4, ".cmd", 4) == 0)
+ /* The set of characters in the 2nd arg to strpbrk
+ should be the same one used by make_command_line
+ below to decide whether an argv[] element needs
+ quoting. */
+ && strpbrk(fname, " \t") != NULL);
+}
+
+
+/*
+ * Description: Create the child process to be helped
+ *
+ * Returns: success <=> 0
+ *
+ * Notes/Dependencies:
+ */
+long
+process_begin(
+ HANDLE proc,
+ char **argv,
+ char **envp,
+ char *exec_path,
+ char *as_user)
+{
+ sub_process *pproc = (sub_process *)proc;
+ char *shell_name = 0;
+ int file_not_found=0;
+ HANDLE exec_handle;
+ char exec_fname[MAX_PATH];
+ const char *path_var = NULL;
+ char **ep;
+ char buf[MAX_PATH];
+ DWORD bytes_returned;
+ DWORD flags;
+ char *command_line;
+ STARTUPINFO startInfo;
+ PROCESS_INFORMATION procInfo;
+ char *envblk=NULL;
+ int envsize_needed = 0;
+ int pass_null_exec_path = 0;
+
+ /*
+ * Shell script detection... if the exec_path starts with #! then
+ * we want to exec shell-script-name exec-path, not just exec-path
+ * NT doesn't recognize #!/bin/sh or #!/etc/Tivoli/bin/perl. We do not
+ * hard-code the path to the shell or perl or whatever: Instead, we
+ * assume it's in the path somewhere (generally, the NT tools
+ * bin directory)
+ */
+
+ /* Use the Makefile's value of PATH to look for the program to
+ execute, because it could be different from Make's PATH
+ (e.g., if the target sets its own value. */
+ if (envp)
+ for (ep = envp; *ep; ep++) {
+ if (strncmp (*ep, "PATH=", 5) == 0
+ || strncmp (*ep, "Path=", 5) == 0) {
+ path_var = *ep + 5;
+ break;
+ }
+ }
+ exec_handle = find_file(exec_path, path_var,
+ exec_fname, sizeof(exec_fname));
+
+ /*
+ * If we couldn't open the file, just assume that Windows will be
+ * somehow able to find and execute it. If the first character
+ * of the command is '/', assume they set SHELL to a Unixy shell
+ * that have some magic mounts known only to it, and run the whole
+ * command via $SHELL -c "COMMAND" instead.
+ */
+ if (exec_handle == INVALID_HANDLE_VALUE) {
+ if (exec_path[0] == '/') {
+ char *new_argv0;
+ char **argvi = argv;
+ int arglen = 0;
+
+ strcpy(buf, variable_expand ("$(SHELL)"));
+ shell_name = &buf[0];
+ strcpy(exec_fname, "-c");
+ /* Construct a single command string in argv[0]. */
+ while (*argvi) {
+ arglen += strlen(*argvi) + 1;
+ argvi++;
+ }
+ new_argv0 = xmalloc(arglen + 1);
+ new_argv0[0] = '\0';
+ for (argvi = argv; *argvi; argvi++) {
+ strcat(new_argv0, *argvi);
+ strcat(new_argv0, " ");
+ }
+ /* Remove the extra blank at the end. */
+ new_argv0[arglen-1] = '\0';
+ free(argv[0]);
+ argv[0] = new_argv0;
+ argv[1] = NULL;
+ }
+ else
+ file_not_found++;
+ }
+ else {
+ /* Attempt to read the first line of the file */
+ if (ReadFile( exec_handle,
+ buf, sizeof(buf) - 1, /* leave room for trailing NULL */
+ &bytes_returned, 0) == FALSE || bytes_returned < 2) {
+
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_IO;
+ CloseHandle(exec_handle);
+ return(-1);
+ }
+ if (buf[0] == '#' && buf[1] == '!') {
+ /*
+ * This is a shell script... Change the command line from
+ * exec_path args to shell_name exec_path args
+ */
+ char *p;
+
+ /* Make sure buf is NULL terminated */
+ buf[bytes_returned] = 0;
+ /*
+ * Depending on the file system type, etc. the first line
+ * of the shell script may end with newline or newline-carriage-return
+ * Whatever it ends with, cut it off.
+ */
+ p= strchr(buf, '\n');
+ if (p)
+ *p = 0;
+ p = strchr(buf, '\r');
+ if (p)
+ *p = 0;
+
+ /*
+ * Find base name of shell
+ */
+ shell_name = strrchr( buf, '/');
+ if (shell_name) {
+ shell_name++;
+ } else {
+ shell_name = &buf[2];/* skipping "#!" */
+ }
+
+ }
+ CloseHandle(exec_handle);
+ }
+
+ flags = 0;
+
+ if (file_not_found)
+ command_line = make_command_line( shell_name, exec_path, argv);
+ else {
+ /* If exec_fname includes whitespace, CreateProcess
+ behaves erratically and unreliably, and often fails
+ if argv[0] also includes whitespace (and thus will
+ be quoted by make_command_line below). So in that
+ case, we don't pass exec_fname as the 1st arg to
+ CreateProcess, but instead replace argv[0] with
+ exec_fname (to keep its leading directories and
+ extension as found by find_file), and pass NULL to
+ CreateProcess as its 1st arg. This works around
+ the bugs in CreateProcess, which are probably
+ caused by its passing the command to cmd.exe with
+ some incorrect quoting. */
+ if (!shell_name
+ && batch_file_with_spaces(exec_fname)
+ && _stricmp(exec_path, argv[0]) == 0) {
+ char *new_argv, *p;
+ char **argvi;
+ int arglen, i;
+ pass_null_exec_path = 1;
+ /* Rewrite argv[] replacing argv[0] with exec_fname. */
+ for (argvi = argv + 1, arglen = strlen(exec_fname) + 1;
+ *argvi;
+ argvi++) {
+ arglen += strlen(*argvi) + 1;
+ }
+ new_argv = xmalloc(arglen);
+ p = strcpy(new_argv, exec_fname) + strlen(exec_fname) + 1;
+ for (argvi = argv + 1, i = 1; *argvi; argvi++, i++) {
+ strcpy(p, *argvi);
+ argv[i] = p;
+ p += strlen(*argvi) + 1;
+ }
+ argv[i] = NULL;
+ free (argv[0]);
+ argv[0] = new_argv;
+ }
+ command_line = make_command_line( shell_name, exec_fname, argv);
+ }
+
+ if ( command_line == NULL ) {
+ pproc->last_err = 0;
+ pproc->lerrno = E_NO_MEM;
+ return(-1);
+ }
+
+ if (envp) {
+ if (arr2envblk(envp, &envblk, &envsize_needed) == FALSE) {
+ pproc->lerrno = E_NO_MEM;
+ free( command_line );
+ if ((pproc->last_err == ERROR_INVALID_PARAMETER
+ || pproc->last_err == ERROR_MORE_DATA)
+ && envsize_needed > 32*1024) {
+ fprintf (stderr, "CreateProcess failed, probably because environment is too large (%d bytes).\n",
+ envsize_needed);
+ }
+ pproc->last_err = 0;
+ return(-1);
+ }
+ }
+
+ if (shell_name || file_not_found || pass_null_exec_path) {
+ exec_path = 0; /* Search for the program in %Path% */
+ } else {
+ exec_path = exec_fname;
+ }
+
+ /*
+ * Set up inherited stdin, stdout, stderr for child
+ */
+ memset(&startInfo, '\0', sizeof(startInfo));
+ GetStartupInfo(&startInfo);
+ startInfo.dwFlags = STARTF_USESTDHANDLES;
+ startInfo.lpReserved = 0;
+ startInfo.cbReserved2 = 0;
+ startInfo.lpReserved2 = 0;
+ startInfo.hStdInput = (HANDLE)pproc->sv_stdin[1];
+ startInfo.hStdOutput = (HANDLE)pproc->sv_stdout[1];
+ startInfo.hStdError = (HANDLE)pproc->sv_stderr[1];
+
+ if (as_user) {
+ free(envblk);
+ return -1;
+ } else {
+ DB (DB_JOBS, ("CreateProcess(%s,%s,...)\n",
+ exec_path ? exec_path : "NULL",
+ command_line ? command_line : "NULL"));
+ if (CreateProcess(
+ exec_path,
+ command_line,
+ NULL,
+ 0, /* default security attributes for thread */
+ TRUE, /* inherit handles (e.g. helper pipes, oserv socket) */
+ flags,
+ envblk,
+ 0, /* default starting directory */
+ &startInfo,
+ &procInfo) == FALSE) {
+
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_FORK;
+ fprintf(stderr, "process_begin: CreateProcess(%s, %s, ...) failed.\n",
+ exec_path ? exec_path : "NULL", command_line);
+ free(envblk);
+ free( command_line );
+ return(-1);
+ }
+ }
+
+ pproc->pid = (pid_t)procInfo.hProcess;
+ /* Close the thread handle -- we'll just watch the process */
+ CloseHandle(procInfo.hThread);
+
+ /* Close the halves of the pipes we don't need */
+ if ((HANDLE)pproc->sv_stdin[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdin[1]);
+ if ((HANDLE)pproc->sv_stdout[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdout[1]);
+ if ((HANDLE)pproc->sv_stderr[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stderr[1]);
+ pproc->sv_stdin[1] = 0;
+ pproc->sv_stdout[1] = 0;
+ pproc->sv_stderr[1] = 0;
+
+ free( command_line );
+ free(envblk);
+ pproc->lerrno=0;
+ return 0;
+}
+
+
+
+#if 0 /* unused */
+static DWORD
+proc_stdin_thread(sub_process *pproc)
+{
+ DWORD in_done;
+ for (;;) {
+ if (WriteFile( (HANDLE) pproc->sv_stdin[0], pproc->inp, pproc->incnt,
+ &in_done, NULL) == FALSE)
+ _endthreadex(0);
+ // This if should never be true for anonymous pipes, but gives
+ // us a chance to change I/O mechanisms later
+ if (in_done < pproc->incnt) {
+ pproc->incnt -= in_done;
+ pproc->inp += in_done;
+ } else {
+ _endthreadex(0);
+ }
+ }
+ return 0; // for compiler warnings only.. not reached
+}
+
+static DWORD
+proc_stdout_thread(sub_process *pproc)
+{
+ DWORD bufsize = 1024;
+ char c;
+ DWORD nread;
+ pproc->outp = malloc(bufsize);
+ if (pproc->outp == NULL)
+ _endthreadex(0);
+ pproc->outcnt = 0;
+
+ for (;;) {
+ if (ReadFile( (HANDLE)pproc->sv_stdout[0], &c, 1, &nread, NULL)
+ == FALSE) {
+/* map_windows32_error_to_string(GetLastError());*/
+ _endthreadex(0);
+ }
+ if (nread == 0)
+ _endthreadex(0);
+ if (pproc->outcnt + nread > bufsize) {
+ bufsize += nread + 512;
+ pproc->outp = realloc(pproc->outp, bufsize);
+ if (pproc->outp == NULL) {
+ pproc->outcnt = 0;
+ _endthreadex(0);
+ }
+ }
+ pproc->outp[pproc->outcnt++] = c;
+ }
+ return 0;
+}
+
+static DWORD
+proc_stderr_thread(sub_process *pproc)
+{
+ DWORD bufsize = 1024;
+ char c;
+ DWORD nread;
+ pproc->errp = malloc(bufsize);
+ if (pproc->errp == NULL)
+ _endthreadex(0);
+ pproc->errcnt = 0;
+
+ for (;;) {
+ if (ReadFile( (HANDLE)pproc->sv_stderr[0], &c, 1, &nread, NULL) == FALSE) {
+ map_windows32_error_to_string(GetLastError());
+ _endthreadex(0);
+ }
+ if (nread == 0)
+ _endthreadex(0);
+ if (pproc->errcnt + nread > bufsize) {
+ bufsize += nread + 512;
+ pproc->errp = realloc(pproc->errp, bufsize);
+ if (pproc->errp == NULL) {
+ pproc->errcnt = 0;
+ _endthreadex(0);
+ }
+ }
+ pproc->errp[pproc->errcnt++] = c;
+ }
+ return 0;
+}
+
+
+/*
+ * Purpose: collects output from child process and returns results
+ *
+ * Description:
+ *
+ * Returns:
+ *
+ * Notes/Dependencies:
+ */
+ long
+process_pipe_io(
+ HANDLE proc,
+ char *stdin_data,
+ int stdin_data_len)
+{
+ sub_process *pproc = (sub_process *)proc;
+ bool_t stdin_eof = FALSE, stdout_eof = FALSE, stderr_eof = FALSE;
+ HANDLE childhand = (HANDLE) pproc->pid;
+ HANDLE tStdin = NULL, tStdout = NULL, tStderr = NULL;
+ unsigned int dwStdin, dwStdout, dwStderr;
+ HANDLE wait_list[4];
+ DWORD wait_count;
+ DWORD wait_return;
+ HANDLE ready_hand;
+ bool_t child_dead = FALSE;
+ BOOL GetExitCodeResult;
+
+ /*
+ * Create stdin thread, if needed
+ */
+ pproc->inp = stdin_data;
+ pproc->incnt = stdin_data_len;
+ if (!pproc->inp) {
+ stdin_eof = TRUE;
+ CloseHandle((HANDLE)pproc->sv_stdin[0]);
+ pproc->sv_stdin[0] = 0;
+ } else {
+ tStdin = (HANDLE) _beginthreadex( 0, 1024,
+ (unsigned (__stdcall *) (void *))proc_stdin_thread,
+ pproc, 0, &dwStdin);
+ if (tStdin == 0) {
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ goto done;
+ }
+ }
+
+ /*
+ * Assume child will produce stdout and stderr
+ */
+ tStdout = (HANDLE) _beginthreadex( 0, 1024,
+ (unsigned (__stdcall *) (void *))proc_stdout_thread, pproc, 0,
+ &dwStdout);
+ tStderr = (HANDLE) _beginthreadex( 0, 1024,
+ (unsigned (__stdcall *) (void *))proc_stderr_thread, pproc, 0,
+ &dwStderr);
+
+ if (tStdout == 0 || tStderr == 0) {
+
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ goto done;
+ }
+
+
+ /*
+ * Wait for all I/O to finish and for the child process to exit
+ */
+
+ while (!stdin_eof || !stdout_eof || !stderr_eof || !child_dead) {
+ wait_count = 0;
+ if (!stdin_eof) {
+ wait_list[wait_count++] = tStdin;
+ }
+ if (!stdout_eof) {
+ wait_list[wait_count++] = tStdout;
+ }
+ if (!stderr_eof) {
+ wait_list[wait_count++] = tStderr;
+ }
+ if (!child_dead) {
+ wait_list[wait_count++] = childhand;
+ }
+
+ wait_return = WaitForMultipleObjects(wait_count, wait_list,
+ FALSE, /* don't wait for all: one ready will do */
+ child_dead? 1000 :INFINITE); /* after the child dies, subthreads have
+ one second to collect all remaining output */
+
+ if (wait_return == WAIT_FAILED) {
+/* map_windows32_error_to_string(GetLastError());*/
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ goto done;
+ }
+
+ ready_hand = wait_list[wait_return - WAIT_OBJECT_0];
+
+ if (ready_hand == tStdin) {
+ CloseHandle((HANDLE)pproc->sv_stdin[0]);
+ pproc->sv_stdin[0] = 0;
+ CloseHandle(tStdin);
+ tStdin = 0;
+ stdin_eof = TRUE;
+
+ } else if (ready_hand == tStdout) {
+
+ CloseHandle((HANDLE)pproc->sv_stdout[0]);
+ pproc->sv_stdout[0] = 0;
+ CloseHandle(tStdout);
+ tStdout = 0;
+ stdout_eof = TRUE;
+
+ } else if (ready_hand == tStderr) {
+
+ CloseHandle((HANDLE)pproc->sv_stderr[0]);
+ pproc->sv_stderr[0] = 0;
+ CloseHandle(tStderr);
+ tStderr = 0;
+ stderr_eof = TRUE;
+
+ } else if (ready_hand == childhand) {
+
+ DWORD ierr;
+ GetExitCodeResult = GetExitCodeProcess(childhand, &ierr);
+ if (ierr == CONTROL_C_EXIT) {
+ pproc->signal = SIGINT;
+ } else {
+ pproc->exit_code = ierr;
+ }
+ if (GetExitCodeResult == FALSE) {
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ goto done;
+ }
+ child_dead = TRUE;
+
+ } else {
+
+ /* ?? Got back a handle we didn't query ?? */
+ pproc->last_err = 0;
+ pproc->lerrno = E_FAIL;
+ goto done;
+ }
+ }
+
+ done:
+ if (tStdin != 0)
+ CloseHandle(tStdin);
+ if (tStdout != 0)
+ CloseHandle(tStdout);
+ if (tStderr != 0)
+ CloseHandle(tStderr);
+
+ if (pproc->lerrno)
+ return(-1);
+ else
+ return(0);
+
+}
+#endif /* unused */
+
+/*
+ * Purpose: collects output from child process and returns results
+ *
+ * Description:
+ *
+ * Returns:
+ *
+ * Notes/Dependencies:
+ */
+ long
+process_file_io(
+ HANDLE proc)
+{
+ sub_process *pproc;
+ HANDLE childhand;
+ DWORD wait_return;
+ BOOL GetExitCodeResult;
+ DWORD ierr;
+
+ if (proc == NULL)
+ pproc = process_wait_for_any_private(1, 0);
+ else
+ pproc = (sub_process *)proc;
+
+ /* some sort of internal error */
+ if (!pproc)
+ return -1;
+
+ childhand = (HANDLE) pproc->pid;
+
+ /*
+ * This function is poorly named, and could also be used just to wait
+ * for child death if you're doing your own pipe I/O. If that is
+ * the case, close the pipe handles here.
+ */
+ if (pproc->sv_stdin[0]) {
+ CloseHandle((HANDLE)pproc->sv_stdin[0]);
+ pproc->sv_stdin[0] = 0;
+ }
+ if (pproc->sv_stdout[0]) {
+ CloseHandle((HANDLE)pproc->sv_stdout[0]);
+ pproc->sv_stdout[0] = 0;
+ }
+ if (pproc->sv_stderr[0]) {
+ CloseHandle((HANDLE)pproc->sv_stderr[0]);
+ pproc->sv_stderr[0] = 0;
+ }
+
+ /*
+ * Wait for the child process to exit
+ */
+
+ wait_return = WaitForSingleObject(childhand, INFINITE);
+
+ if (wait_return != WAIT_OBJECT_0) {
+/* map_windows32_error_to_string(GetLastError());*/
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ goto done2;
+ }
+
+ GetExitCodeResult = GetExitCodeProcess(childhand, &ierr);
+ if (ierr == CONTROL_C_EXIT) {
+ pproc->signal = SIGINT;
+ } else {
+ pproc->exit_code = ierr;
+ }
+ if (GetExitCodeResult == FALSE) {
+ pproc->last_err = GetLastError();
+ pproc->lerrno = E_SCALL;
+ }
+
+done2:
+ if (pproc->lerrno)
+ return(-1);
+ else
+ return(0);
+
+}
+
+/*
+ * Description: Clean up any leftover handles, etc. It is up to the
+ * caller to manage and free the input, output, and stderr buffers.
+ */
+ void
+process_cleanup(
+ HANDLE proc)
+{
+ sub_process *pproc = (sub_process *)proc;
+ int i;
+
+ if (pproc->using_pipes) {
+ for (i= 0; i <= 1; i++) {
+ if ((HANDLE)pproc->sv_stdin[i]
+ && (HANDLE)pproc->sv_stdin[i] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdin[i]);
+ if ((HANDLE)pproc->sv_stdout[i]
+ && (HANDLE)pproc->sv_stdout[i] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdout[i]);
+ if ((HANDLE)pproc->sv_stderr[i]
+ && (HANDLE)pproc->sv_stderr[i] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stderr[i]);
+ }
+ }
+ if ((HANDLE)pproc->pid)
+ CloseHandle((HANDLE)pproc->pid);
+
+ free(pproc);
+}
+
+
+/*
+ * Description:
+ * Create a command line buffer to pass to CreateProcess
+ *
+ * Returns: the buffer or NULL for failure
+ * Shell case: sh_name a:/full/path/to/script argv[1] argv[2] ...
+ * Otherwise: argv[0] argv[1] argv[2] ...
+ *
+ * Notes/Dependencies:
+ * CreateProcess does not take an argv, so this command creates a
+ * command line for the executable.
+ */
+
+static char *
+make_command_line( char *shell_name, char *full_exec_path, char **argv)
+{
+ int argc = 0;
+ char** argvi;
+ int* enclose_in_quotes = NULL;
+ int* enclose_in_quotes_i;
+ unsigned int bytes_required = 0;
+ char* command_line;
+ char* command_line_i;
+ int cygwin_mode = 0; /* HAVE_CYGWIN_SHELL */
+ int have_sh = 0; /* HAVE_CYGWIN_SHELL */
+
+#ifdef HAVE_CYGWIN_SHELL
+ have_sh = (shell_name != NULL || strstr(full_exec_path, "sh.exe"));
+ cygwin_mode = 1;
+#endif
+
+ if (shell_name && full_exec_path) {
+ bytes_required
+ = strlen(shell_name) + 1 + strlen(full_exec_path);
+ /*
+ * Skip argv[0] if any, when shell_name is given.
+ * The special case of "-c" in full_exec_path means
+ * argv[0] is not the shell name, but the command string
+ * to pass to the shell.
+ */
+ if (*argv && strcmp(full_exec_path, "-c")) argv++;
+ /*
+ * Add one for the intervening space.
+ */
+ if (*argv) bytes_required++;
+ }
+
+ argvi = argv;
+ while (*(argvi++)) argc++;
+
+ if (argc) {
+ enclose_in_quotes = (int*) calloc(1, argc * sizeof(int));
+
+ if (!enclose_in_quotes) {
+ return NULL;
+ }
+ }
+
+ /* We have to make one pass through each argv[i] to see if we need
+ * to enclose it in ", so we might as well figure out how much
+ * memory we'll need on the same pass.
+ */
+
+ argvi = argv;
+ enclose_in_quotes_i = enclose_in_quotes;
+ while(*argvi) {
+ char* p = *argvi;
+ unsigned int backslash_count = 0;
+
+ /*
+ * We have to enclose empty arguments in ".
+ */
+ if (!(*p)) *enclose_in_quotes_i = 1;
+
+ while(*p) {
+ switch (*p) {
+ case '\"':
+ /*
+ * We have to insert a backslash for each "
+ * and each \ that precedes the ".
+ */
+ bytes_required += (backslash_count + 1);
+ backslash_count = 0;
+ break;
+
+#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
+ case '\\':
+ backslash_count++;
+ break;
+#endif
+ /*
+ * At one time we set *enclose_in_quotes_i for '*' or '?' to suppress
+ * wildcard expansion in programs linked with MSVC's SETARGV.OBJ so
+ * that argv in always equals argv out. This was removed. Say you have
+ * such a program named glob.exe. You enter
+ * glob '*'
+ * at the sh command prompt. Obviously the intent is to make glob do the
+ * wildcarding instead of sh. If we set *enclose_in_quotes_i for '*' or '?',
+ * then the command line that glob would see would be
+ * glob "*"
+ * and the _setargv in SETARGV.OBJ would _not_ expand the *.
+ */
+ case ' ':
+ case '\t':
+ *enclose_in_quotes_i = 1;
+ /* fall through */
+
+ default:
+ backslash_count = 0;
+ break;
+ }
+
+ /*
+ * Add one for each character in argv[i].
+ */
+ bytes_required++;
+
+ p++;
+ }
+
+ if (*enclose_in_quotes_i) {
+ /*
+ * Add one for each enclosing ",
+ * and one for each \ that precedes the
+ * closing ".
+ */
+ bytes_required += (backslash_count + 2);
+ }
+
+ /*
+ * Add one for the intervening space.
+ */
+ if (*(++argvi)) bytes_required++;
+ enclose_in_quotes_i++;
+ }
+
+ /*
+ * Add one for the terminating NULL.
+ */
+ bytes_required++;
+
+ command_line = (char*) malloc(bytes_required);
+
+ if (!command_line) {
+ free(enclose_in_quotes);
+ return NULL;
+ }
+
+ command_line_i = command_line;
+
+ if (shell_name && full_exec_path) {
+ while(*shell_name) {
+ *(command_line_i++) = *(shell_name++);
+ }
+
+ *(command_line_i++) = ' ';
+
+ while(*full_exec_path) {
+ *(command_line_i++) = *(full_exec_path++);
+ }
+
+ if (*argv) {
+ *(command_line_i++) = ' ';
+ }
+ }
+
+ argvi = argv;
+ enclose_in_quotes_i = enclose_in_quotes;
+
+ while(*argvi) {
+ char* p = *argvi;
+ unsigned int backslash_count = 0;
+
+ if (*enclose_in_quotes_i) {
+ *(command_line_i++) = '\"';
+ }
+
+ while(*p) {
+ if (*p == '\"') {
+ if (cygwin_mode && have_sh) { /* HAVE_CYGWIN_SHELL */
+ /* instead of a \", cygwin likes "" */
+ *(command_line_i++) = '\"';
+ } else {
+
+ /*
+ * We have to insert a backslash for the "
+ * and each \ that precedes the ".
+ */
+ backslash_count++;
+
+ while(backslash_count) {
+ *(command_line_i++) = '\\';
+ backslash_count--;
+ };
+ }
+#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
+ } else if (*p == '\\') {
+ backslash_count++;
+ } else {
+ backslash_count = 0;
+#endif
+ }
+
+ /*
+ * Copy the character.
+ */
+ *(command_line_i++) = *(p++);
+ }
+
+ if (*enclose_in_quotes_i) {
+#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
+ /*
+ * Add one \ for each \ that precedes the
+ * closing ".
+ */
+ while(backslash_count--) {
+ *(command_line_i++) = '\\';
+ };
+#endif
+ *(command_line_i++) = '\"';
+ }
+
+ /*
+ * Append an intervening space.
+ */
+ if (*(++argvi)) {
+ *(command_line_i++) = ' ';
+ }
+
+ enclose_in_quotes_i++;
+ }
+
+ /*
+ * Append the terminating NULL.
+ */
+ *command_line_i = '\0';
+
+ free(enclose_in_quotes);
+ return command_line;
+}
+
+/*
+ * Description: Given an argv and optional envp, launch the process
+ * using the default stdin, stdout, and stderr handles.
+ * Also, register process so that process_wait_for_any_private()
+ * can be used via process_file_io(NULL) or
+ * process_wait_for_any().
+ *
+ * Returns:
+ *
+ * Notes/Dependencies:
+ */
+HANDLE
+process_easy(
+ char **argv,
+ char **envp,
+ int outfd,
+ int errfd)
+{
+ HANDLE hIn = INVALID_HANDLE_VALUE;
+ HANDLE hOut = INVALID_HANDLE_VALUE;
+ HANDLE hErr = INVALID_HANDLE_VALUE;
+ HANDLE hProcess, tmpIn, tmpOut, tmpErr;
+ DWORD e;
+
+ if (proc_index >= MAXIMUM_WAIT_OBJECTS) {
+ DB (DB_JOBS, ("process_easy: All process slots used up\n"));
+ return INVALID_HANDLE_VALUE;
+ }
+ /* Standard handles returned by GetStdHandle can be NULL or
+ INVALID_HANDLE_VALUE if the parent process closed them. If that
+ happens, we open the null device and pass its handle to
+ CreateProcess as the corresponding handle to inherit. */
+ tmpIn = GetStdHandle(STD_INPUT_HANDLE);
+ if (DuplicateHandle(GetCurrentProcess(),
+ tmpIn,
+ GetCurrentProcess(),
+ &hIn,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpIn = CreateFile("NUL", GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpIn != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpIn,
+ GetCurrentProcess(),
+ &hIn,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpIn);
+ }
+ if (hIn == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(In) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
+ }
+ if (outfd >= 0)
+ tmpOut = (HANDLE)_get_osfhandle (outfd);
+ else
+ tmpOut = GetStdHandle (STD_OUTPUT_HANDLE);
+ if (DuplicateHandle(GetCurrentProcess(),
+ tmpOut,
+ GetCurrentProcess(),
+ &hOut,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpOut = CreateFile("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpOut != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpOut,
+ GetCurrentProcess(),
+ &hOut,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpOut);
+ }
+ if (hOut == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(Out) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
+ }
+ if (errfd >= 0)
+ tmpErr = (HANDLE)_get_osfhandle (errfd);
+ else
+ tmpErr = GetStdHandle(STD_ERROR_HANDLE);
+ if (DuplicateHandle(GetCurrentProcess(),
+ tmpErr,
+ GetCurrentProcess(),
+ &hErr,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpErr = CreateFile("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpErr != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpErr,
+ GetCurrentProcess(),
+ &hErr,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpErr);
+ }
+ if (hErr == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(Err) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
+ }
+
+ hProcess = process_init_fd(hIn, hOut, hErr);
+
+ if (process_begin(hProcess, argv, envp, argv[0], NULL)) {
+ fake_exits_pending++;
+ /* process_begin() failed: make a note of that. */
+ if (!((sub_process*) hProcess)->last_err)
+ ((sub_process*) hProcess)->last_err = -1;
+ ((sub_process*) hProcess)->exit_code = process_last_err(hProcess);
+
+ /* close up unused handles */
+ if (hIn != INVALID_HANDLE_VALUE)
+ CloseHandle(hIn);
+ if (hOut != INVALID_HANDLE_VALUE)
+ CloseHandle(hOut);
+ if (hErr != INVALID_HANDLE_VALUE)
+ CloseHandle(hErr);
+ }
+
+ process_register(hProcess);
+
+ return hProcess;
+}
diff --git a/w32/subproc/w32err.c b/w32/subproc/w32err.c
new file mode 100644
index 0000000..14eebed
--- /dev/null
+++ b/w32/subproc/w32err.c
@@ -0,0 +1,85 @@
+/* Error handling for Windows
+Copyright (C) 1996-2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <stdlib.h>
+#include <windows.h>
+#include "makeint.h"
+#include "w32err.h"
+
+/*
+ * Description: the windows32 version of perror()
+ *
+ * Returns: a pointer to a static error
+ *
+ * Notes/Dependencies: I got this from
+ * comp.os.ms-windows.programmer.win32
+ */
+const char *
+map_windows32_error_to_string (DWORD ercode) {
+/*
+ * We used to have an MSVC-specific '__declspec (thread)' qualifier
+ * here, with the following comment:
+ *
+ * __declspec (thread) necessary if you will use multiple threads on MSVC
+ *
+ * However, Make was never multithreaded on Windows (except when
+ * Ctrl-C is hit, in which case the main thread is stopped
+ * immediately, so it doesn't matter in this context). The functions
+ * on sub_proc.c that started and stopped additional threads were
+ * never used, and are now #ifdef'ed away. Until we need more than
+ * one thread, we have no problems with the following buffer being
+ * static. (If and when we do need it to be in thread-local storage,
+ * the corresponding GCC qualifier is '__thread'.)
+ */
+ static char szMessageBuffer[128];
+ /* Fill message buffer with a default message in
+ * case FormatMessage fails
+ */
+ wsprintf (szMessageBuffer, "Error %ld\n", ercode);
+
+ /*
+ * Special code for winsock error handling.
+ */
+ if (ercode > WSABASEERR) {
+#if 0
+ HMODULE hModule = GetModuleHandle("wsock32");
+ if (hModule != NULL) {
+ FormatMessage(FORMAT_MESSAGE_FROM_HMODULE,
+ hModule,
+ ercode,
+ LANG_NEUTRAL,
+ szMessageBuffer,
+ sizeof(szMessageBuffer),
+ NULL);
+ FreeLibrary(hModule);
+ }
+#else
+ O (fatal, NILF, szMessageBuffer);
+#endif
+ } else {
+ /*
+ * Default system message handling
+ */
+ FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL,
+ ercode,
+ LANG_NEUTRAL,
+ szMessageBuffer,
+ sizeof(szMessageBuffer),
+ NULL);
+ }
+ return szMessageBuffer;
+}
diff --git a/w32/w32os.c b/w32/w32os.c
new file mode 100644
index 0000000..533b910
--- /dev/null
+++ b/w32/w32os.c
@@ -0,0 +1,198 @@
+/* Windows32-based operating system interface for GNU Make.
+Copyright (C) 2016 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "makeint.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <windows.h>
+#include <process.h>
+#include <io.h>
+#include "pathstuff.h"
+#include "sub_proc.h"
+#include "w32err.h"
+#include "os.h"
+#include "debug.h"
+
+/* This section provides OS-specific functions to support the jobserver. */
+
+static char jobserver_semaphore_name[MAX_PATH + 1];
+static HANDLE jobserver_semaphore = NULL;
+
+unsigned int
+jobserver_setup (int slots)
+{
+ /* sub_proc.c cannot wait for more than MAXIMUM_WAIT_OBJECTS objects
+ * and one of them is the job-server semaphore object. Limit the
+ * number of available job slots to (MAXIMUM_WAIT_OBJECTS - 1). */
+
+ if (slots >= MAXIMUM_WAIT_OBJECTS)
+ {
+ slots = MAXIMUM_WAIT_OBJECTS - 1;
+ DB (DB_JOBS, (_("Jobserver slots limited to %d\n"), slots));
+ }
+
+ sprintf (jobserver_semaphore_name, "gmake_semaphore_%d", _getpid ());
+
+ jobserver_semaphore = CreateSemaphore (
+ NULL, /* Use default security descriptor */
+ slots, /* Initial count */
+ slots, /* Maximum count */
+ jobserver_semaphore_name); /* Semaphore name */
+
+ if (jobserver_semaphore == NULL)
+ {
+ DWORD err = GetLastError ();
+ const char *estr = map_windows32_error_to_string (err);
+ ONS (fatal, NILF,
+ _("creating jobserver semaphore: (Error %ld: %s)"), err, estr);
+ }
+
+ return 1;
+}
+
+unsigned int
+jobserver_parse_auth (const char *auth)
+{
+ jobserver_semaphore = OpenSemaphore (
+ SEMAPHORE_ALL_ACCESS, /* Semaphore access setting */
+ FALSE, /* Child processes DON'T inherit */
+ auth); /* Semaphore name */
+
+ if (jobserver_semaphore == NULL)
+ {
+ DWORD err = GetLastError ();
+ const char *estr = map_windows32_error_to_string (err);
+ fatal (NILF, strlen (auth) + INTSTR_LENGTH + strlen (estr),
+ _("internal error: unable to open jobserver semaphore '%s': (Error %ld: %s)"),
+ auth, err, estr);
+ }
+ DB (DB_JOBS, (_("Jobserver client (semaphore %s)\n"), auth));
+
+ return 1;
+}
+
+char *
+jobserver_get_auth ()
+{
+ return xstrdup (jobserver_semaphore_name);
+}
+
+unsigned int
+jobserver_enabled ()
+{
+ return jobserver_semaphore != NULL;
+}
+
+/* Close jobserver semaphore */
+void
+jobserver_clear ()
+{
+ if (jobserver_semaphore != NULL)
+ {
+ CloseHandle (jobserver_semaphore);
+ jobserver_semaphore = NULL;
+ }
+}
+
+void
+jobserver_release (int is_fatal)
+{
+ if (! ReleaseSemaphore (
+ jobserver_semaphore, /* handle to semaphore */
+ 1, /* increase count by one */
+ NULL)) /* not interested in previous count */
+ {
+ if (is_fatal)
+ {
+ DWORD err = GetLastError ();
+ const char *estr = map_windows32_error_to_string (err);
+ ONS (fatal, NILF,
+ _("release jobserver semaphore: (Error %ld: %s)"), err, estr);
+ }
+ perror_with_name ("release_jobserver_semaphore", "");
+ }
+}
+
+unsigned int
+jobserver_acquire_all ()
+{
+ unsigned int tokens = 0;
+ while (1)
+ {
+ DWORD dwEvent = WaitForSingleObject (
+ jobserver_semaphore, /* Handle to semaphore */
+ 0); /* DON'T wait on semaphore */
+
+ if (dwEvent != WAIT_OBJECT_0)
+ return tokens;
+
+ ++tokens;
+ }
+}
+
+void
+jobserver_signal ()
+{
+}
+
+void jobserver_pre_child (int recursive)
+{
+}
+
+void jobserver_post_child (int recursive)
+{
+}
+
+void
+jobserver_pre_acquire ()
+{
+}
+
+/* Returns 1 if we got a token, or 0 if a child has completed.
+ The Windows implementation doesn't support load detection. */
+unsigned int
+jobserver_acquire (int timeout)
+{
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ DWORD dwHandleCount;
+ DWORD dwEvent;
+
+ /* Add jobserver semaphore to first slot. */
+ handles[0] = jobserver_semaphore;
+
+ /* Build array of handles to wait for. */
+ dwHandleCount = 1 + process_set_handles (&handles[1]);
+
+ dwEvent = WaitForMultipleObjects (
+ dwHandleCount, /* number of objects in array */
+ handles, /* array of objects */
+ FALSE, /* wait for any object */
+ INFINITE); /* wait until object is signalled */
+
+ if (dwEvent == WAIT_FAILED)
+ {
+ DWORD err = GetLastError ();
+ const char *estr = map_windows32_error_to_string (err);
+ ONS (fatal, NILF,
+ _("semaphore or child process wait: (Error %ld: %s)"),
+ err, estr);
+ }
+
+ /* WAIT_OBJECT_0 indicates that the semaphore was signalled. */
+ return dwEvent == WAIT_OBJECT_0;
+}
