| If you read this file _as_is_, just ignore the funny characters you |
| see. It is written in the POD format (see F<pod/perlpod.pod>) which is |
| specially designed to be readable as is. |
| |
| =head1 NAME |
| |
| perlcygwin - Perl for Cygwin |
| |
| =head1 SYNOPSIS |
| |
| This document will help you configure, make, test and install Perl |
| on Cygwin. This document also describes features of Cygwin that will |
| affect how Perl behaves at runtime. |
| |
| B<NOTE:> There are pre-built Perl packages available for Cygwin and a |
| version of Perl is provided in the normal Cygwin install. If you do |
| not need to customize the configuration, consider using one of those |
| packages. |
| |
| |
| =head1 PREREQUISITES FOR COMPILING PERL ON CYGWIN |
| |
| =head2 Cygwin = GNU+Cygnus+Windows (Don't leave UNIX without it) |
| |
| The Cygwin tools are ports of the popular GNU development tools for Win32 |
| platforms. They run thanks to the Cygwin library which provides the UNIX |
| system calls and environment these programs expect. More information |
| about this project can be found at: |
| |
| L<http://www.cygwin.com/> |
| |
| A recent net or commercial release of Cygwin is required. |
| |
| At the time this document was last updated, Cygwin 1.7.10 was current. |
| |
| |
| =head2 Cygwin Configuration |
| |
| While building Perl some changes may be necessary to your Cygwin setup so |
| that Perl builds cleanly. These changes are B<not> required for normal |
| Perl usage. |
| |
| B<NOTE:> The binaries that are built will run on all Win32 versions. |
| They do not depend on your host system (WinXP/Win2K/Win7) or your |
| Cygwin configuration (binary/text mounts, cvgserver). |
| The only dependencies come from hard-coded pathnames like C</usr/local>. |
| However, your host system and Cygwin configuration will affect Perl's |
| runtime behavior (see L</"TEST">). |
| |
| =over 4 |
| |
| =item * C<PATH> |
| |
| Set the C<PATH> environment variable so that Configure finds the Cygwin |
| versions of programs. Any not-needed Windows directories should be removed or |
| moved to the end of your C<PATH>. |
| |
| =item * I<nroff> |
| |
| If you do not have I<nroff> (which is part of the I<groff> package), |
| Configure will B<not> prompt you to install I<man> pages. |
| |
| =back |
| |
| =head1 CONFIGURE PERL ON CYGWIN |
| |
| The default options gathered by Configure with the assistance of |
| F<hints/cygwin.sh> will build a Perl that supports dynamic loading |
| (which requires a shared F<cygperl5_16.dll>). |
| |
| This will run Configure and keep a record: |
| |
| ./Configure 2>&1 | tee log.configure |
| |
| If you are willing to accept all the defaults run Configure with B<-de>. |
| However, several useful customizations are available. |
| |
| =head2 Stripping Perl Binaries on Cygwin |
| |
| It is possible to strip the EXEs and DLLs created by the build process. |
| The resulting binaries will be significantly smaller. If you want the |
| binaries to be stripped, you can either add a B<-s> option when Configure |
| prompts you, |
| |
| Any additional ld flags (NOT including libraries)? [none] -s |
| Any special flags to pass to g++ to create a dynamically loaded library? |
| [none] -s |
| Any special flags to pass to gcc to use dynamic linking? [none] -s |
| |
| or you can edit F<hints/cygwin.sh> and uncomment the relevant variables |
| near the end of the file. |
| |
| =head2 Optional Libraries for Perl on Cygwin |
| |
| Several Perl functions and modules depend on the existence of |
| some optional libraries. Configure will find them if they are |
| installed in one of the directories listed as being used for library |
| searches. Pre-built packages for most of these are available from |
| the Cygwin installer. |
| |
| =over 4 |
| |
| =item * C<-lcrypt> |
| |
| The crypt package distributed with Cygwin is a Linux compatible 56-bit |
| DES crypt port by Corinna Vinschen. |
| |
| Alternatively, the crypt libraries in GNU libc have been ported to Cygwin. |
| |
| =item * C<-lgdbm_compat> (C<use GDBM_File>) |
| |
| GDBM is available for Cygwin. |
| |
| NOTE: The GDBM library only works on NTFS partitions. |
| |
| =item * C<-ldb> (C<use DB_File>) |
| |
| BerkeleyDB is available for Cygwin. |
| |
| NOTE: The BerkeleyDB library only completely works on NTFS partitions. |
| |
| =item * C<cygserver> (C<use IPC::SysV>) |
| |
| A port of SysV IPC is available for Cygwin. |
| |
| NOTE: This has B<not> been extensively tested. In particular, |
| C<d_semctl_semun> is undefined because it fails a Configure test |
| and on Win9x the I<shm*()> functions seem to hang. It also creates |
| a compile time dependency because F<perl.h> includes F<<sys/ipc.h>> |
| and F<<sys/sem.h>> (which will be required in the future when compiling |
| CPAN modules). CURRENTLY NOT SUPPORTED! |
| |
| =item * C<-lutil> |
| |
| Included with the standard Cygwin netrelease is the inetutils package |
| which includes libutil.a. |
| |
| =back |
| |
| =head2 Configure-time Options for Perl on Cygwin |
| |
| The F<INSTALL> document describes several Configure-time options. Some of |
| these will work with Cygwin, others are not yet possible. Also, some of |
| these are experimental. You can either select an option when Configure |
| prompts you or you can define (undefine) symbols on the command line. |
| |
| =over 4 |
| |
| =item * C<-Uusedl> |
| |
| Undefining this symbol forces Perl to be compiled statically. |
| |
| =item * C<-Dusemymalloc> |
| |
| By default Perl does not use the C<malloc()> included with the Perl source, |
| because it was slower and not entirely thread-safe. If you want to force |
| Perl to build with the old -Dusemymalloc define this. |
| |
| =item * C<-Uuseperlio> |
| |
| Undefining this symbol disables the PerlIO abstraction. PerlIO is now the |
| default; it is not recommended to disable PerlIO. |
| |
| =item * C<-Dusemultiplicity> |
| |
| Multiplicity is required when embedding Perl in a C program and using |
| more than one interpreter instance. This is only required when you build |
| a not-threaded perl with C<-Uuseithreads>. |
| |
| =item * C<-Uuse64bitint> |
| |
| By default Perl uses 64 bit integers. If you want to use smaller 32 bit |
| integers, define this symbol. |
| |
| =item * C<-Duselongdouble> |
| |
| I<gcc> supports long doubles (12 bytes). However, several additional |
| long double math functions are necessary to use them within Perl |
| (I<{atan2, cos, exp, floor, fmod, frexp, isnan, log, modf, pow, sin, sqrt}l, |
| strtold>). |
| These are B<not> yet available with newlib, the Cygwin libc. |
| |
| =item * C<-Uuseithreads> |
| |
| Define this symbol if you want not-threaded faster perl. |
| |
| =item * C<-Duselargefiles> |
| |
| Cygwin uses 64-bit integers for internal size and position calculations, |
| this will be correctly detected and defined by Configure. |
| |
| =item * C<-Dmksymlinks> |
| |
| Use this to build perl outside of the source tree. Details can be |
| found in the F<INSTALL> document. This is the recommended way to |
| build perl from sources. |
| |
| =back |
| |
| =head2 Suspicious Warnings on Cygwin |
| |
| You may see some messages during Configure that seem suspicious. |
| |
| =over 4 |
| |
| =item * Win9x and C<d_eofnblk> |
| |
| Win9x does not correctly report C<EOF> with a non-blocking read on a |
| closed pipe. You will see the following messages: |
| |
| But it also returns -1 to signal EOF, so be careful! |
| WARNING: you can't distinguish between EOF and no data! |
| |
| *** WHOA THERE!!! *** |
| The recommended value for $d_eofnblk on this machine was "define"! |
| Keep the recommended value? [y] |
| |
| At least for consistency with WinNT, you should keep the recommended |
| value. |
| |
| =item * Compiler/Preprocessor defines |
| |
| The following error occurs because of the Cygwin C<#define> of |
| C<_LONG_DOUBLE>: |
| |
| Guessing which symbols your C compiler and preprocessor define... |
| try.c:<line#>: missing binary operator |
| |
| This failure does not seem to cause any problems. With older gcc |
| versions, "parse error" is reported instead of "missing binary |
| operator". |
| |
| =back |
| |
| =head1 MAKE ON CYGWIN |
| |
| Simply run I<make> and wait: |
| |
| make 2>&1 | tee log.make |
| |
| =head1 TEST ON CYGWIN |
| |
| There are two steps to running the test suite: |
| |
| make test 2>&1 | tee log.make-test |
| |
| cd t; ./perl harness 2>&1 | tee ../log.harness |
| |
| The same tests are run both times, but more information is provided when |
| running as C<./perl harness>. |
| |
| Test results vary depending on your host system and your Cygwin |
| configuration. If a test can pass in some Cygwin setup, it is always |
| attempted and explainable test failures are documented. It is possible |
| for Perl to pass all the tests, but it is more likely that some tests |
| will fail for one of the reasons listed below. |
| |
| =head2 File Permissions on Cygwin |
| |
| UNIX file permissions are based on sets of mode bits for |
| {read,write,execute} for each {user,group,other}. By default Cygwin |
| only tracks the Win32 read-only attribute represented as the UNIX file |
| user write bit (files are always readable, files are executable if they |
| have a F<.{com,bat,exe}> extension or begin with C<#!>, directories are |
| always readable and executable). On WinNT with the I<ntea> C<CYGWIN> |
| setting, the additional mode bits are stored as extended file attributes. |
| On WinNT with the default I<ntsec> C<CYGWIN> setting, permissions use the |
| standard WinNT security descriptors and access control lists. Without one of |
| these options, these tests will fail (listing not updated yet): |
| |
| Failed Test List of failed |
| ------------------------------------ |
| io/fs.t 5, 7, 9-10 |
| lib/anydbm.t 2 |
| lib/db-btree.t 20 |
| lib/db-hash.t 16 |
| lib/db-recno.t 18 |
| lib/gdbm.t 2 |
| lib/ndbm.t 2 |
| lib/odbm.t 2 |
| lib/sdbm.t 2 |
| op/stat.t 9, 20 (.tmp not an executable extension) |
| |
| =head2 NDBM_File and ODBM_File do not work on FAT filesystems |
| |
| Do not use NDBM_File or ODBM_File on FAT filesystem. They can be |
| built on a FAT filesystem, but many tests will fail: |
| |
| ../ext/NDBM_File/ndbm.t 13 3328 71 59 83.10% 1-2 4 16-71 |
| ../ext/ODBM_File/odbm.t 255 65280 ?? ?? % ?? |
| ../lib/AnyDBM_File.t 2 512 12 2 16.67% 1 4 |
| ../lib/Memoize/t/errors.t 0 139 11 5 45.45% 7-11 |
| ../lib/Memoize/t/tie_ndbm.t 13 3328 4 4 100.00% 1-4 |
| run/fresh_perl.t 97 1 1.03% 91 |
| |
| If you intend to run only on FAT (or if using AnyDBM_File on FAT), |
| run Configure with the -Ui_ndbm and -Ui_dbm options to prevent |
| NDBM_File and ODBM_File being built. |
| |
| With NTFS (and no CYGWIN=nontsec), there should be no problems even if |
| perl was built on FAT. |
| |
| =head2 C<fork()> failures in io_* tests |
| |
| A C<fork()> failure may result in the following tests failing: |
| |
| ext/IO/lib/IO/t/io_multihomed.t |
| ext/IO/lib/IO/t/io_sock.t |
| ext/IO/lib/IO/t/io_unix.t |
| |
| See comment on fork in L</Miscellaneous> below. |
| |
| =head1 Specific features of the Cygwin port |
| |
| =head2 Script Portability on Cygwin |
| |
| Cygwin does an outstanding job of providing UNIX-like semantics on top of |
| Win32 systems. However, in addition to the items noted above, there are |
| some differences that you should know about. This is a very brief guide |
| to portability, more information can be found in the Cygwin documentation. |
| |
| =over 4 |
| |
| =item * Pathnames |
| |
| Cygwin pathnames are separated by forward (F</>) slashes, Universal |
| Naming Codes (F<//UNC>) are also supported Since cygwin-1.7 non-POSIX |
| pathnames are disencouraged. Names may contain all printable |
| characters. |
| |
| File names are case insensitive, but case preserving. A pathname that |
| contains a backslash or drive letter is a Win32 pathname, and not |
| subject to the translations applied to POSIX style pathnames, but |
| cygwin will warn you, so better convert them to POSIX. |
| |
| For conversion we have C<Cygwin::win_to_posix_path()> and |
| C<Cygwin::posix_to_win_path()>. |
| |
| Since cygwin-1.7 pathnames are UTF-8 encoded. |
| |
| =item * Text/Binary |
| |
| Since cywgin-1.7 textmounts are deprecated and stronlgy discouraged. |
| |
| When a file is opened it is in either text or binary mode. In text mode |
| a file is subject to CR/LF/Ctrl-Z translations. With Cygwin, the default |
| mode for an C<open()> is determined by the mode of the mount that underlies |
| the file. See L</Cygwin::is_binmount>(). Perl provides a C<binmode()> function |
| to set binary mode on files that otherwise would be treated as text. |
| C<sysopen()> with the C<O_TEXT> flag sets text mode on files that otherwise |
| would be treated as binary: |
| |
| sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT) |
| |
| C<lseek()>, C<tell()> and C<sysseek()> only work with files opened in binary |
| mode. |
| |
| The text/binary issue is covered at length in the Cygwin documentation. |
| |
| =item * PerlIO |
| |
| PerlIO overrides the default Cygwin Text/Binary behaviour. A file will |
| always be treated as binary, regardless of the mode of the mount it lives |
| on, just like it is in UNIX. So CR/LF translation needs to be requested in |
| either the C<open()> call like this: |
| |
| open(FH, ">:crlf", "out.txt"); |
| |
| which will do conversion from LF to CR/LF on the output, or in the |
| environment settings (add this to your .bashrc): |
| |
| export PERLIO=crlf |
| |
| which will pull in the crlf PerlIO layer which does LF -> CRLF conversion |
| on every output generated by perl. |
| |
| =item * F<.exe> |
| |
| The Cygwin C<stat()>, C<lstat()> and C<readlink()> functions make the F<.exe> |
| extension transparent by looking for F<foo.exe> when you ask for F<foo> |
| (unless a F<foo> also exists). Cygwin does not require a F<.exe> |
| extension, but I<gcc> adds it automatically when building a program. |
| However, when accessing an executable as a normal file (e.g., I<cp> |
| in a makefile) the F<.exe> is not transparent. The I<install> program |
| included with Cygwin automatically appends a F<.exe> when necessary. |
| |
| =item * Cygwin vs. Windows process ids |
| |
| Cygwin processes have their own pid, which is different from the |
| underlying windows pid. Most posix compliant Proc functions expect |
| the cygwin pid, but several Win32::Process functions expect the |
| winpid. E.g. C<$$> is the cygwin pid of F</usr/bin/perl>, which is not |
| the winpid. Use C<Cygwin::winpid_to_pid()> and C<Cygwin::winpid_to_pid()> |
| to translate between them. |
| |
| =item * Cygwin vs. Windows errors |
| |
| Under Cygwin, $^E is the same as $!. When using L<Win32 API Functions|Win32>, |
| use C<Win32::GetLastError()> to get the last Windows error. |
| |
| =item * rebase errors on fork or system |
| |
| Using C<fork()> or C<system()> out to another perl after loading multiple dlls |
| may result on a DLL baseaddress conflict. The internal cygwin error |
| looks like like the following: |
| |
| 0 [main] perl 8916 child_info_fork::abort: data segment start: parent |
| (0xC1A000) != child(0xA6A000) |
| |
| or: |
| |
| 183 [main] perl 3588 C:\cygwin\bin\perl.exe: *** fatal error - unable to remap C:\cygwin\bin\cygsvn_subr-1-0.dll to same address as parent(0x6FB30000) != 0x6FE60000 |
| 46 [main] perl 3488 fork: child 3588 - died waiting for dll loading, errno11 |
| |
| See L<http://cygwin.com/faq/faq-nochunks.html#faq.using.fixing-fork-failures> |
| It helps if not too many DLLs are loaded in memory so the available address space is larger, |
| e.g. stopping the MS Internet Explorer might help. |
| |
| Use the perlrebase or rebase utilities to resolve the conflicting dll addresses. |
| The rebase package is included in the Cygwin setup. Use F<setup.exe> |
| from L<http://www.cygwin.com/setup.exe> to install it. |
| |
| 1. kill all perl processes and run C<perlrebase> or |
| |
| 2. kill all cygwin processes and services, start dash from cmd.exe and run C<rebaseall>. |
| |
| =item * C<chown()> |
| |
| On WinNT C<chown()> can change a file's user and group IDs. On Win9x C<chown()> |
| is a no-op, although this is appropriate since there is no security model. |
| |
| =item * Miscellaneous |
| |
| File locking using the C<F_GETLK> command to C<fcntl()> is a stub that |
| returns C<ENOSYS>. |
| |
| Win9x can not C<rename()> an open file (although WinNT can). |
| |
| The Cygwin C<chroot()> implementation has holes (it can not restrict file |
| access by native Win32 programs). |
| |
| Inplace editing C<perl -i> of files doesn't work without doing a backup |
| of the file being edited C<perl -i.bak> because of windowish restrictions, |
| therefore Perl adds the suffix C<.bak> automatically if you use C<perl -i> |
| without specifying a backup extension. |
| |
| =back |
| |
| =head2 Prebuilt methods: |
| |
| =over 4 |
| |
| =item C<Cwd::cwd> |
| |
| Returns the current working directory. |
| |
| =item C<Cygwin::pid_to_winpid> |
| |
| Translates a cygwin pid to the corresponding Windows pid (which may or |
| may not be the same). |
| |
| =item C<Cygwin::winpid_to_pid> |
| |
| Translates a Windows pid to the corresponding cygwin pid (if any). |
| |
| =item C<Cygwin::win_to_posix_path> |
| |
| Translates a Windows path to the corresponding cygwin path respecting |
| the current mount points. With a second non-null argument returns an |
| absolute path. Double-byte characters will not be translated. |
| |
| =item C<Cygwin::posix_to_win_path> |
| |
| Translates a cygwin path to the corresponding cygwin path respecting |
| the current mount points. With a second non-null argument returns an |
| absolute path. Double-byte characters will not be translated. |
| |
| =item C<Cygwin::mount_table()> |
| |
| Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts]. |
| |
| perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}' |
| /bin c:\cygwin\bin system binmode,cygexec |
| /usr/bin c:\cygwin\bin system binmode |
| /usr/lib c:\cygwin\lib system binmode |
| / c:\cygwin system binmode |
| /cygdrive/c c: system binmode,noumount |
| /cygdrive/d d: system binmode,noumount |
| /cygdrive/e e: system binmode,noumount |
| |
| =item C<Cygwin::mount_flags> |
| |
| Returns the mount type and flags for a specified mount point. |
| A comma-separated string of mntent->mnt_type (always |
| "system" or "user"), then the mntent->mnt_opts, where |
| the first is always "binmode" or "textmode". |
| |
| system|user,binmode|textmode,exec,cygexec,cygdrive,mixed, |
| notexec,managed,nosuid,devfs,proc,noumount |
| |
| If the argument is "/cygdrive", then just the volume mount settings, |
| and the cygdrive mount prefix are returned. |
| |
| User mounts override system mounts. |
| |
| $ perl -e 'print Cygwin::mount_flags "/usr/bin"' |
| system,binmode,cygexec |
| $ perl -e 'print Cygwin::mount_flags "/cygdrive"' |
| binmode,cygdrive,/cygdrive |
| |
| =item C<Cygwin::is_binmount> |
| |
| Returns true if the given cygwin path is binary mounted, false if the |
| path is mounted in textmode. |
| |
| =item C<Cygwin::sync_winenv> |
| |
| Cygwin does not initialize all original Win32 environment variables. |
| See the bottom of this page L<http://cygwin.com/cygwin-ug-net/setup-env.html> |
| for "Restricted Win32 environment". |
| |
| Certain Win32 programs called from cygwin programs might need some environment |
| variable, such as e.g. ADODB needs %COMMONPROGRAMFILES%. |
| Call Cygwin::sync_winenv() to copy all Win32 environment variables to your |
| process and note that cygwin will warn on every encounter of non-POSIX paths. |
| |
| =back |
| |
| =head1 INSTALL PERL ON CYGWIN |
| |
| This will install Perl, including I<man> pages. |
| |
| make install 2>&1 | tee log.make-install |
| |
| NOTE: If C<STDERR> is redirected C<make install> will B<not> prompt |
| you to install I<perl> into F</usr/bin>. |
| |
| You may need to be I<Administrator> to run C<make install>. If you |
| are not, you must have write access to the directories in question. |
| |
| Information on installing the Perl documentation in HTML format can be |
| found in the F<INSTALL> document. |
| |
| =head1 MANIFEST ON CYGWIN |
| |
| These are the files in the Perl release that contain references to Cygwin. |
| These very brief notes attempt to explain the reason for all conditional |
| code. Hopefully, keeping this up to date will allow the Cygwin port to |
| be kept as clean as possible. |
| |
| =over 4 |
| |
| =item Documentation |
| |
| INSTALL README.cygwin README.win32 MANIFEST |
| pod/perl.pod pod/perlport.pod pod/perlfaq3.pod |
| pod/perldelta.pod pod/perl5004delta.pod pod/perl56delta.pod |
| pod/perl561delta.pod pod/perl570delta.pod pod/perl572delta.pod |
| pod/perl573delta.pod pod/perl58delta.pod pod/perl581delta.pod |
| pod/perl590delta.pod pod/perlhist.pod pod/perlmodlib.pod |
| pod/perltoc.pod Porting/Glossary pod/perlgit.pod |
| Porting/checkAUTHORS.pl |
| dist/Cwd/Changes ext/Compress-Raw-Zlib/Changes |
| ext/Compress-Raw-Zlib/README ext/Compress-Zlib/Changes |
| ext/DB_File/Changes ext/Encode/Changes ext/Sys-Syslog/Changes |
| ext/Time-HiRes/Changes ext/Win32API-File/Changes lib/CGI/Changes |
| lib/ExtUtils/CBuilder/Changes lib/ExtUtils/Changes lib/ExtUtils/NOTES |
| lib/ExtUtils/PATCHING lib/ExtUtils/README lib/Module/Build/Changes |
| lib/Net/Ping/Changes lib/Test/Harness/Changes |
| lib/Term/ANSIColor/ChangeLog lib/Term/ANSIColor/README README.symbian |
| symbian/TODO |
| |
| =item Build, Configure, Make, Install |
| |
| cygwin/Makefile.SHs |
| ext/IPC/SysV/hints/cygwin.pl |
| ext/NDBM_File/hints/cygwin.pl |
| ext/ODBM_File/hints/cygwin.pl |
| hints/cygwin.sh |
| Configure - help finding hints from uname, |
| shared libperl required for dynamic loading |
| Makefile.SH Cross/Makefile-cross-SH |
| - linklibperl |
| Porting/patchls - cygwin in port list |
| installman - man pages with :: translated to . |
| installperl - install dll, install to 'pods' |
| makedepend.SH - uwinfix |
| regen_lib.pl - file permissions |
| |
| NetWare/Makefile |
| plan9/mkfile |
| symbian/sanity.pl symbian/sisify.pl |
| hints/uwin.sh |
| vms/descrip_mms.template |
| win32/Makefile win32/makefile.mk |
| |
| =item Tests |
| |
| t/io/fs.t - no file mode checks if not ntsec |
| skip rename() check when not check_case:relaxed |
| t/io/tell.t - binmode |
| t/lib/cygwin.t - builtin cygwin function tests |
| t/op/groups.t - basegroup has ID = 0 |
| t/op/magic.t - $^X/symlink WORKAROUND, s/.exe// |
| t/op/stat.t - no /dev, skip Win32 ftCreationTime quirk |
| (cache manager sometimes preserves ctime of file |
| previously created and deleted), no -u (setuid) |
| t/op/taint.t - can't use empty path under Cygwin Perl |
| t/op/time.t - no tzset() |
| |
| =item Compiled Perl Source |
| |
| EXTERN.h - __declspec(dllimport) |
| XSUB.h - __declspec(dllexport) |
| cygwin/cygwin.c - os_extras (getcwd, spawn, and several Cygwin:: functions) |
| perl.c - os_extras, -i.bak |
| perl.h - binmode |
| doio.c - win9x can not rename a file when it is open |
| pp_sys.c - do not define h_errno, init _pwent_struct.pw_comment |
| util.c - use setenv |
| util.h - PERL_FILE_IS_ABSOLUTE macro |
| pp.c - Comment about Posix vs IEEE math under Cygwin |
| perlio.c - CR/LF mode |
| perliol.c - Comment about EXTCONST under Cygwin |
| |
| =item Compiled Module Source |
| |
| ext/Compress-Raw-Zlib/Makefile.PL |
| - Can't install via CPAN shell under Cygwin |
| ext/Compress-Raw-Zlib/zlib-src/zutil.h |
| - Cygwin is Unix-like and has vsnprintf |
| ext/Errno/Errno_pm.PL - Special handling for Win32 Perl under Cygwin |
| ext/POSIX/POSIX.xs - tzname defined externally |
| ext/SDBM_File/sdbm/pair.c |
| - EXTCONST needs to be redefined from EXTERN.h |
| ext/SDBM_File/sdbm/sdbm.c |
| - binary open |
| ext/Sys/Syslog/Syslog.xs |
| - Cygwin has syslog.h |
| ext/Sys/Syslog/win32/compile.pl |
| - Convert paths to Windows paths |
| ext/Time-HiRes/HiRes.xs |
| - Various timers not available |
| ext/Time-HiRes/Makefile.PL |
| - Find w32api/windows.h |
| ext/Win32/Makefile.PL - Use various libraries under Cygwin |
| ext/Win32/Win32.xs - Child dir and child env under Cygwin |
| ext/Win32API-File/File.xs |
| - _open_osfhandle not implemented under Cygwin |
| ext/Win32CORE/Win32CORE.c |
| - __declspec(dllexport) |
| |
| =item Perl Modules/Scripts |
| |
| ext/B/t/OptreeCheck.pm - Comment about stderr/stdout order under Cygwin |
| ext/Digest-SHA/bin/shasum |
| - Use binary mode under Cygwin |
| ext/Sys/Syslog/win32/Win32.pm |
| - Convert paths to Windows paths |
| ext/Time-HiRes/HiRes.pm |
| - Comment about various timers not available |
| ext/Win32API-File/File.pm |
| - _open_osfhandle not implemented under Cygwin |
| ext/Win32CORE/Win32CORE.pm |
| - History of Win32CORE under Cygwin |
| lib/CGI.pm - binmode and path separator |
| lib/CPANPLUS/Dist/MM.pm - Commented out code that fails under Win32/Cygwin |
| lib/CPANPLUS/Internals/Constants/Report.pm |
| - OS classifications |
| lib/CPANPLUS/Internals/Constants.pm |
| - Constants for Cygwin |
| lib/CPANPLUS/Internals/Report.pm |
| - Example of Cygwin report |
| lib/CPANPLUS/Module.pm |
| - Abort if running on old Cygwin version |
| lib/Cwd.pm - hook to internal Cwd::cwd |
| lib/ExtUtils/CBuilder/Platform/cygwin.pm |
| - use gcc for ld, and link to libperl.dll.a |
| lib/ExtUtils/CBuilder.pm |
| - Cygwin is Unix-like |
| lib/ExtUtils/Install.pm - Install and rename issues under Cygwin |
| lib/ExtUtils/MM.pm - OS classifications |
| lib/ExtUtils/MM_Any.pm - Example for Cygwin |
| lib/ExtUtils/MakeMaker.pm |
| - require MM_Cygwin.pm |
| lib/ExtUtils/MM_Cygwin.pm |
| - canonpath, cflags, manifypods, perl_archive |
| lib/File/Fetch.pm - Comment about quotes using a Cygwin example |
| lib/File/Find.pm - on remote drives stat() always sets st_nlink to 1 |
| lib/File/Spec/Cygwin.pm - case_tolerant |
| lib/File/Spec/Unix.pm - preserve //unc |
| lib/File/Spec/Win32.pm - References a message on cygwin.com |
| lib/File/Spec.pm - Pulls in lib/File/Spec/Cygwin.pm |
| lib/File/Temp.pm - no directory sticky bit |
| lib/Module/Build/Compat.pm - Comment references 'make' under Cygwin |
| lib/Module/Build/Platform/cygwin.pm |
| - Use '.' for man page separator |
| lib/Module/Build.pm - Cygwin is Unix-like |
| lib/Module/CoreList.pm - List of all module files and versions |
| lib/Net/Domain.pm - No domainname command under Cygwin |
| lib/Net/Netrc.pm - Bypass using stat() under Cygwin |
| lib/Net/Ping.pm - ECONREFUSED is EAGAIN under Cygwin |
| lib/Pod/Find.pm - Set 'pods' dir |
| lib/Pod/Perldoc/ToMan.pm - '-c' switch for pod2man |
| lib/Pod/Perldoc.pm - Use 'less' pager, and use .exe extension |
| lib/Term/ANSIColor.pm - Cygwin terminal info |
| lib/perl5db.pl - use stdin not /dev/tty |
| utils/perlbug.PL - Add CYGWIN environment variable to report |
| |
| =item Perl Module Tests |
| |
| dist/Cwd/t/cwd.t |
| ext/Compress-Zlib/t/14gzopen.t |
| ext/DB_File/t/db-btree.t |
| ext/DB_File/t/db-hash.t |
| ext/DB_File/t/db-recno.t |
| ext/DynaLoader/t/DynaLoader.t |
| ext/File-Glob/t/basic.t |
| ext/GDBM_File/t/gdbm.t |
| ext/POSIX/t/sysconf.t |
| ext/POSIX/t/time.t |
| ext/SDBM_File/t/sdbm.t |
| ext/Sys/Syslog/t/syslog.t |
| ext/Time-HiRes/t/HiRes.t |
| ext/Win32/t/Unicode.t |
| ext/Win32API-File/t/file.t |
| ext/Win32CORE/t/win32core.t |
| lib/AnyDBM_File.t |
| lib/Archive/Extract/t/01_Archive-Extract.t |
| lib/Archive/Tar/t/02_methods.t |
| lib/CPANPLUS/t/05_CPANPLUS-Internals-Fetch.t |
| lib/CPANPLUS/t/20_CPANPLUS-Dist-MM.t |
| lib/ExtUtils/t/Embed.t |
| lib/ExtUtils/t/eu_command.t |
| lib/ExtUtils/t/MM_Cygwin.t |
| lib/ExtUtils/t/MM_Unix.t |
| lib/File/Compare.t |
| lib/File/Copy.t |
| lib/File/Find/t/find.t |
| lib/File/Path.t |
| lib/File/Spec/t/crossplatform.t |
| lib/File/Spec/t/Spec.t |
| lib/Module/Build/t/destinations.t |
| lib/Net/hostent.t |
| lib/Net/Ping/t/110_icmp_inst.t |
| lib/Net/Ping/t/500_ping_icmp.t |
| lib/Net/t/netrc.t |
| lib/Pod/Simple/t/perlcyg.pod |
| lib/Pod/Simple/t/perlcygo.txt |
| lib/Pod/Simple/t/perlfaq.pod |
| lib/Pod/Simple/t/perlfaqo.txt |
| lib/User/grent.t |
| lib/User/pwent.t |
| |
| =back |
| |
| =head1 BUGS ON CYGWIN |
| |
| Support for swapping real and effective user and group IDs is incomplete. |
| On WinNT Cygwin provides C<setuid()>, C<seteuid()>, C<setgid()> and C<setegid()>. |
| However, additional Cygwin calls for manipulating WinNT access tokens |
| and security contexts are required. |
| |
| =head1 AUTHORS |
| |
| Charles Wilson <cwilson@ece.gatech.edu>, |
| Eric Fifer <egf7@columbia.edu>, |
| alexander smishlajev <als@turnhere.com>, |
| Steven Morlock <newspost@morlock.net>, |
| Sebastien Barre <Sebastien.Barre@utc.fr>, |
| Teun Burgers <burgers@ecn.nl>, |
| Gerrit P. Haase <gp@familiehaase.de>, |
| Reini Urban <rurban@cpan.org>, |
| Jan Dubois <jand@activestate.com>, |
| Jerry D. Hedden <jdhedden@cpan.org>. |
| |
| =head1 HISTORY |
| |
| Last updated: 2012-02-08 |