| #!./miniperl -w |
| # |
| # configpm |
| # |
| # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
| # 2002, 2003, 2004, 2005, 2006, 2007 Larry Wall and others. |
| # |
| # |
| # Regenerate the files |
| # |
| # lib/Config.pm |
| # lib/Config_heavy.pl |
| # lib/Config.pod |
| # lib/Cross.pm (optionally) |
| # |
| # |
| # from the contents of the static files |
| # |
| # Porting/Glossary |
| # myconfig.SH |
| # |
| # and from the contents of the Configure-generated file |
| # |
| # config.sh |
| # |
| # Note that output directory is xlib/[cross-name]/ for cross-compiling |
| # |
| # It will only update Config.pm and Config_heavy.pl if the contents of |
| # either file would be different. Note that *both* files are updated in |
| # this case, since for example an extension makefile that has a dependency |
| # on Config.pm should trigger even if only Config_heavy.pl has changed. |
| |
| sub usage { die <<EOF } |
| usage: $0 [ options ] |
| --cross=PLATFORM cross-compile for a different platform |
| --no-glossary don't include Porting/Glossary in lib/Config.pod |
| --chdir=dir change directory before writing files |
| EOF |
| |
| use strict; |
| use vars qw(%Config $Config_SH_expanded); |
| |
| my $how_many_common = 22; |
| |
| # commonly used names to precache (and hence lookup fastest) |
| my %Common; |
| |
| while ($how_many_common--) { |
| $_ = <DATA>; |
| chomp; |
| /^(\S+):\s*(\d+)$/ or die "Malformed line '$_'"; |
| $Common{$1} = $1; |
| } |
| |
| # Post 37589e1eefb1bd62 DynaLoader defaults to reading these at runtime. |
| # Ideally we're redo the data below, but Fotango's build system made it |
| # wonderfully easy to instrument, and no longer exists. |
| $Common{$_} = $_ foreach qw(dlext so); |
| |
| # names of things which may need to have slashes changed to double-colons |
| my %Extensions = map {($_,$_)} |
| qw(dynamic_ext static_ext extensions known_extensions); |
| |
| # The plan is that this information is used by ExtUtils::MakeMaker to generate |
| # Makefile dependencies, rather than hardcoding a list, which has become out |
| # of date. However, currently, MM_Unix.pm and MM_VMS.pm have *different* lists, |
| # *and* descrip_mms.template doesn't actually install all the headers. |
| # The "Unix" list seems to (attempt to) avoid the generated headers, which I'm |
| # not sure is the right thing to do. Also, not certain whether it would be |
| # easier to parse MANIFEST to get these (adding config.h, and potentially |
| # removing others), but for now, stick to a hard coded list. |
| |
| # Could use a map to add ".h", but I suspect that it's easier to use literals, |
| # so that anyone using grep will find them |
| # This is the list from MM_VMS, plus pad.h, parser.h, perlsfio.h utf8.h |
| # which it installs. It *doesn't* install perliol.h - FIXME. |
| my @header_files = qw(EXTERN.h INTERN.h XSUB.h av.h config.h cop.h cv.h |
| embed.h embedvar.h form.h gv.h handy.h hv.h intrpvar.h |
| iperlsys.h keywords.h mg.h nostdio.h op.h opcode.h |
| pad.h parser.h patchlevel.h perl.h perlio.h perlsdio.h |
| perlsfio.h perlvars.h perly.h pp.h pp_proto.h proto.h |
| regcomp.h regexp.h regnodes.h scope.h sv.h thread.h utf8.h |
| util.h); |
| |
| # No point in adding fakethr.h, as it no longer works |
| push @header_files, |
| $^O eq 'VMS' ? 'vmsish.h' : qw(dosish.h perliol.h time64.h unixish.h); |
| |
| my $header_files = ' return qw(' . join(' ', sort @header_files) . ');'; |
| $header_files =~ s/(?=.{64}) # If line is still overlength |
| (.{1,64})\ # Split at the last convenient space |
| /$1\n /gx; |
| |
| # allowed opts as well as specifies default and initial values |
| my %Allowed_Opts = ( |
| 'cross' => '', # --cross=PLATFORM - crosscompiling for PLATFORM |
| 'glossary' => 1, # --no-glossary - no glossary file inclusion, |
| # for compactness |
| 'chdir' => '', # --chdir=dir - change directory before writing files |
| ); |
| |
| sub opts { |
| # user specified options |
| my %given_opts = ( |
| # --opt=smth |
| (map {/^--([\-_\w]+)=(.*)$/} @ARGV), |
| # --opt --no-opt --noopt |
| (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV), |
| ); |
| |
| my %opts = (%Allowed_Opts, %given_opts); |
| |
| for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) { |
| warn "option '$opt' is not recognized"; |
| usage; |
| } |
| @ARGV = grep {!/^--/} @ARGV; |
| |
| return %opts; |
| } |
| |
| |
| my %Opts = opts(); |
| |
| if ($Opts{chdir}) { |
| chdir $Opts{chdir} or die "$0: could not chdir $Opts{chdir}: $!" |
| } |
| |
| my ($Config_SH, $Config_PM, $Config_heavy, $Config_POD); |
| my $Glossary = 'Porting/Glossary'; |
| |
| if ($Opts{cross}) { |
| # creating cross-platform config file |
| mkdir "xlib"; |
| mkdir "xlib/$Opts{cross}"; |
| $Config_PM = "xlib/$Opts{cross}/Config.pm"; |
| $Config_POD = "xlib/$Opts{cross}/Config.pod"; |
| $Config_SH = "Cross/config-$Opts{cross}.sh"; |
| } |
| else { |
| $Config_PM = "lib/Config.pm"; |
| $Config_POD = "lib/Config.pod"; |
| $Config_SH = "config.sh"; |
| } |
| ($Config_heavy = $Config_PM) =~ s/\.pm$/_heavy.pl/; |
| die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'" |
| if $Config_heavy eq $Config_PM; |
| |
| my $config_txt; |
| my $heavy_txt; |
| |
| $heavy_txt .= <<'ENDOFBEG'; |
| # This file was created by configpm when Perl was built. Any changes |
| # made to this file will be lost the next time perl is built. |
| |
| package Config; |
| use strict; |
| use warnings; |
| use vars '%Config'; |
| |
| sub bincompat_options { |
| return split ' ', (Internals::V())[0]; |
| } |
| |
| sub non_bincompat_options { |
| return split ' ', (Internals::V())[1]; |
| } |
| |
| sub compile_date { |
| return (Internals::V())[2] |
| } |
| |
| sub local_patches { |
| my (undef, undef, undef, @patches) = Internals::V(); |
| return @patches; |
| } |
| |
| sub _V { |
| my ($bincompat, $non_bincompat, $date, @patches) = Internals::V(); |
| |
| my $opts = join ' ', sort split ' ', "$bincompat $non_bincompat"; |
| |
| # wrap at 76 columns. |
| |
| $opts =~ s/(?=.{53})(.{1,53}) /$1\n /mg; |
| |
| print Config::myconfig(); |
| if ($^O eq 'VMS') { |
| print "\nCharacteristics of this PERLSHR image: \n"; |
| } else { |
| print "\nCharacteristics of this binary (from libperl): \n"; |
| } |
| |
| print " Compile-time options: $opts\n"; |
| |
| if (@patches) { |
| print " Locally applied patches:\n"; |
| print "\t$_\n" foreach @patches; |
| } |
| |
| print " Built under $^O\n"; |
| |
| print " $date\n" if defined $date; |
| |
| my @env = map { "$_=\"$ENV{$_}\"" } sort grep {/^PERL/} keys %ENV; |
| push @env, "CYGWIN=\"$ENV{CYGWIN}\"" if $^O eq 'cygwin' and $ENV{CYGWIN}; |
| |
| if (@env) { |
| print " \%ENV:\n"; |
| print " $_\n" foreach @env; |
| } |
| print " \@INC:\n"; |
| print " $_\n" foreach @INC; |
| } |
| |
| sub header_files { |
| ENDOFBEG |
| |
| $heavy_txt .= $header_files . "\n}\n\n"; |
| |
| my $export_funcs = <<'EOT'; |
| my %Export_Cache = (myconfig => 1, config_sh => 1, config_vars => 1, |
| config_re => 1, compile_date => 1, local_patches => 1, |
| bincompat_options => 1, non_bincompat_options => 1, |
| header_files => 1); |
| EOT |
| |
| my %export_ok = eval $export_funcs or die; |
| |
| $config_txt .= sprintf << 'EOT', $export_funcs; |
| # This file was created by configpm when Perl was built. Any changes |
| # made to this file will be lost the next time perl is built. |
| |
| # for a description of the variables, please have a look at the |
| # Glossary file, as written in the Porting folder, or use the url: |
| # http://perl5.git.perl.org/perl.git/blob/HEAD:/Porting/Glossary |
| |
| package Config; |
| use strict; |
| use warnings; |
| use vars '%%Config'; |
| |
| # Skip @Config::EXPORT because it only contains %%Config, which we special |
| # case below as it's not a function. @Config::EXPORT won't change in the |
| # lifetime of Perl 5. |
| %s |
| @Config::EXPORT = qw(%%Config); |
| @Config::EXPORT_OK = keys %%Export_Cache; |
| |
| # Need to stub all the functions to make code such as print Config::config_sh |
| # keep working |
| |
| EOT |
| |
| $config_txt .= "sub $_;\n" foreach sort keys %export_ok; |
| |
| my $myver = sprintf "%vd", $^V; |
| |
| $config_txt .= sprintf <<'ENDOFBEG', ($myver) x 3; |
| |
| # Define our own import method to avoid pulling in the full Exporter: |
| sub import { |
| shift; |
| @_ = @Config::EXPORT unless @_; |
| |
| my @funcs = grep $_ ne '%%Config', @_; |
| my $export_Config = @funcs < @_ ? 1 : 0; |
| |
| no strict 'refs'; |
| my $callpkg = caller(0); |
| foreach my $func (@funcs) { |
| die qq{"$func" is not exported by the Config module\n} |
| unless $Export_Cache{$func}; |
| *{$callpkg.'::'.$func} = \&{$func}; |
| } |
| |
| *{"$callpkg\::Config"} = \%%Config if $export_Config; |
| return; |
| } |
| |
| die "Perl lib version (%s) doesn't match executable '$0' version ($])" |
| unless $^V; |
| |
| $^V eq %s |
| or die "Perl lib version (%s) doesn't match executable '$0' version (" . |
| sprintf("v%%vd",$^V) . ")"; |
| |
| ENDOFBEG |
| |
| |
| my @non_v = (); |
| my @v_others = (); |
| my $in_v = 0; |
| my %Data = (); |
| my $quote; |
| |
| |
| my %seen_quotes; |
| { |
| my ($name, $val); |
| open(CONFIG_SH, $Config_SH) || die "Can't open $Config_SH: $!"; |
| while (<CONFIG_SH>) { |
| next if m:^#!/bin/sh:; |
| |
| # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure. |
| s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/; |
| my($k, $v) = ($1, $2); |
| |
| # grandfather PATCHLEVEL and SUBVERSION and CONFIG |
| if ($k) { |
| if ($k eq 'PERL_VERSION') { |
| push @v_others, "PATCHLEVEL='$v'\n"; |
| } |
| elsif ($k eq 'PERL_SUBVERSION') { |
| push @v_others, "SUBVERSION='$v'\n"; |
| } |
| elsif ($k eq 'PERL_CONFIG_SH') { |
| push @v_others, "CONFIG='$v'\n"; |
| } |
| } |
| |
| # We can delimit things in config.sh with either ' or ". |
| unless ($in_v or m/^(\w+)=(['"])(.*\n)/){ |
| push(@non_v, "#$_"); # not a name='value' line |
| next; |
| } |
| if ($in_v) { |
| $val .= $_; |
| } |
| else { |
| $quote = $2; |
| ($name,$val) = ($1,$3); |
| } |
| $in_v = $val !~ /$quote\n/; |
| next if $in_v; |
| |
| s,/,::,g if $Extensions{$name}; |
| |
| $val =~ s/$quote\n?\z//; |
| |
| my $line = "$name=$quote$val$quote\n"; |
| push(@v_others, $line); |
| $seen_quotes{$quote}++; |
| } |
| close CONFIG_SH; |
| } |
| |
| # This is somewhat grim, but I want the code for parsing config.sh here and |
| # now so that I can expand $Config{ivsize} and $Config{ivtype} |
| |
| my $fetch_string = <<'EOT'; |
| |
| # Search for it in the big string |
| sub fetch_string { |
| my($self, $key) = @_; |
| |
| EOT |
| |
| if ($seen_quotes{'"'}) { |
| # We need the full ' and " code |
| |
| $fetch_string .= <<'EOT'; |
| return undef unless my ($quote_type, $value) = $Config_SH_expanded =~ /\n$key=(['"])(.*?)\1\n/s; |
| |
| # If we had a double-quote, we'd better eval it so escape |
| # sequences and such can be interpolated. Since the incoming |
| # value is supposed to follow shell rules and not perl rules, |
| # we escape any perl variable markers |
| |
| # Historically, since " 'support' was added in change 1409, the |
| # interpolation was done before the undef. Stick to this arguably buggy |
| # behaviour as we're refactoring. |
| if ($quote_type eq '"') { |
| $value =~ s/\$/\\\$/g; |
| $value =~ s/\@/\\\@/g; |
| eval "\$value = \"$value\""; |
| } |
| |
| # So we can say "if $Config{'foo'}". |
| $self->{$key} = $value eq 'undef' ? undef : $value; # cache it |
| } |
| EOT |
| |
| } else { |
| # We only have ' delimted. |
| |
| $fetch_string .= <<'EOT'; |
| return undef unless $Config_SH_expanded =~ /\n$key=\'(.*?)\'\n/s; |
| # So we can say "if $Config{'foo'}". |
| $self->{$key} = $1 eq 'undef' ? undef : $1; |
| } |
| EOT |
| |
| } |
| |
| eval $fetch_string; |
| die if $@; |
| |
| # Calculation for the keys for byteorder |
| # This is somewhat grim, but I need to run fetch_string here. |
| our $Config_SH_expanded = join "\n", '', @v_others; |
| |
| my $t = fetch_string ({}, 'ivtype'); |
| my $s = fetch_string ({}, 'ivsize'); |
| |
| # byteorder does exist on its own but we overlay a virtual |
| # dynamically recomputed value. |
| |
| # However, ivtype and ivsize will not vary for sane fat binaries |
| |
| my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I'; |
| |
| my $byteorder_code; |
| if ($s == 4 || $s == 8) { |
| my $list = join ',', reverse(1..$s-1); |
| my $format = 'a'x$s; |
| $byteorder_code = <<"EOT"; |
| |
| my \$i = ord($s); |
| foreach my \$c ($list) { \$i <<= 8; \$i |= ord(\$c); } |
| our \$byteorder = join('', unpack('$format', pack('$f', \$i))); |
| EOT |
| } else { |
| $byteorder_code = "our \$byteorder = '?'x$s;\n"; |
| } |
| |
| my @need_relocation; |
| |
| if (fetch_string({},'userelocatableinc')) { |
| foreach my $what (qw(prefixexp |
| |
| archlibexp |
| html1direxp |
| html3direxp |
| man1direxp |
| man3direxp |
| privlibexp |
| scriptdirexp |
| sitearchexp |
| sitebinexp |
| sitehtml1direxp |
| sitehtml3direxp |
| sitelibexp |
| siteman1direxp |
| siteman3direxp |
| sitescriptexp |
| vendorarchexp |
| vendorbinexp |
| vendorhtml1direxp |
| vendorhtml3direxp |
| vendorlibexp |
| vendorman1direxp |
| vendorman3direxp |
| vendorscriptexp |
| |
| siteprefixexp |
| sitelib_stem |
| vendorlib_stem |
| |
| installarchlib |
| installhtml1dir |
| installhtml3dir |
| installman1dir |
| installman3dir |
| installprefix |
| installprefixexp |
| installprivlib |
| installscript |
| installsitearch |
| installsitebin |
| installsitehtml1dir |
| installsitehtml3dir |
| installsitelib |
| installsiteman1dir |
| installsiteman3dir |
| installsitescript |
| installvendorarch |
| installvendorbin |
| installvendorhtml1dir |
| installvendorhtml3dir |
| installvendorlib |
| installvendorman1dir |
| installvendorman3dir |
| installvendorscript |
| )) { |
| push @need_relocation, $what if fetch_string({}, $what) =~ m!^\.\.\./!; |
| } |
| } |
| |
| my %need_relocation; |
| @need_relocation{@need_relocation} = @need_relocation; |
| |
| # This can have .../ anywhere: |
| if (fetch_string({}, 'otherlibdirs') =~ m!\.\.\./!) { |
| $need_relocation{otherlibdirs} = 'otherlibdirs'; |
| } |
| |
| my $relocation_code = <<'EOT'; |
| |
| sub relocate_inc { |
| my $libdir = shift; |
| return $libdir unless $libdir =~ s!^\.\.\./!!; |
| my $prefix = $^X; |
| if ($prefix =~ s!/[^/]*$!!) { |
| while ($libdir =~ m!^\.\./!) { |
| # Loop while $libdir starts "../" and $prefix still has a trailing |
| # directory |
| last unless $prefix =~ s!/([^/]+)$!!; |
| # but bail out if the directory we picked off the end of $prefix is . |
| # or .. |
| if ($1 eq '.' or $1 eq '..') { |
| # Undo! This should be rare, hence code it this way rather than a |
| # check each time before the s!!! above. |
| $prefix = "$prefix/$1"; |
| last; |
| } |
| # Remove that leading ../ and loop again |
| substr ($libdir, 0, 3, ''); |
| } |
| $libdir = "$prefix/$libdir"; |
| } |
| $libdir; |
| } |
| EOT |
| |
| if (%need_relocation) { |
| my $relocations_in_common; |
| # otherlibdirs only features in the hash |
| foreach (keys %need_relocation) { |
| $relocations_in_common++ if $Common{$_}; |
| } |
| if ($relocations_in_common) { |
| $config_txt .= $relocation_code; |
| } else { |
| $heavy_txt .= $relocation_code; |
| } |
| } |
| |
| $heavy_txt .= join('', @non_v) . "\n"; |
| |
| # copy config summary format from the myconfig.SH script |
| $heavy_txt .= "our \$summary = <<'!END!';\n"; |
| open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!"; |
| 1 while defined($_ = <MYCONFIG>) && !/^Summary of/; |
| do { $heavy_txt .= $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/; |
| close(MYCONFIG); |
| |
| $heavy_txt .= "\n!END!\n" . <<'EOT'; |
| my $summary_expanded; |
| |
| sub myconfig { |
| return $summary_expanded if $summary_expanded; |
| ($summary_expanded = $summary) =~ s{\$(\w+)} |
| { |
| my $c; |
| if ($1 eq 'git_ancestor_line') { |
| if ($Config::Config{git_ancestor}) { |
| $c= "\n Ancestor: $Config::Config{git_ancestor}"; |
| } else { |
| $c= ""; |
| } |
| } else { |
| $c = $Config::Config{$1}; |
| } |
| defined($c) ? $c : 'undef' |
| }ge; |
| $summary_expanded; |
| } |
| |
| local *_ = \my $a; |
| $_ = <<'!END!'; |
| EOT |
| |
| $heavy_txt .= join('', sort @v_others) . "!END!\n"; |
| |
| # Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of |
| # the precached keys |
| if ($Common{byteorder}) { |
| $config_txt .= $byteorder_code; |
| } else { |
| $heavy_txt .= $byteorder_code; |
| } |
| |
| if (@need_relocation) { |
| $heavy_txt .= 'foreach my $what (qw(' . join (' ', @need_relocation) . |
| ")) {\n" . <<'EOT'; |
| s/^($what=)(['"])(.*?)\2/$1 . $2 . relocate_inc($3) . $2/me; |
| } |
| EOT |
| # Currently it only makes sense to do the ... relocation on Unix, so there's |
| # no need to emulate the "which separator for this platform" logic in perl.c - |
| # ':' will always be applicable |
| if ($need_relocation{otherlibdirs}) { |
| $heavy_txt .= << 'EOT'; |
| s{^(otherlibdirs=)(['"])(.*?)\2} |
| {$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me; |
| EOT |
| } |
| } |
| |
| $heavy_txt .= <<'EOT'; |
| s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m; |
| |
| my $config_sh_len = length $_; |
| |
| our $Config_SH_expanded = "\n$_" . << 'EOVIRTUAL'; |
| EOT |
| |
| foreach my $prefix (qw(ccflags ldflags)) { |
| my $value = fetch_string ({}, $prefix); |
| my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles"); |
| if (defined $withlargefiles) { |
| $value =~ s/\Q$withlargefiles\E\b//; |
| $heavy_txt .= "${prefix}_nolargefiles='$value'\n"; |
| } |
| } |
| |
| foreach my $prefix (qw(libs libswanted)) { |
| my $value = fetch_string ({}, $prefix); |
| my $withlf = fetch_string ({}, 'libswanted_uselargefiles'); |
| next unless defined $withlf; |
| my @lflibswanted |
| = split(' ', fetch_string ({}, 'libswanted_uselargefiles')); |
| if (@lflibswanted) { |
| my %lflibswanted; |
| @lflibswanted{@lflibswanted} = (); |
| if ($prefix eq 'libs') { |
| my @libs = grep { /^-l(.+)/ && |
| not exists $lflibswanted{$1} } |
| split(' ', fetch_string ({}, 'libs')); |
| $value = join(' ', @libs); |
| } else { |
| my @libswanted = grep { not exists $lflibswanted{$_} } |
| split(' ', fetch_string ({}, 'libswanted')); |
| $value = join(' ', @libswanted); |
| } |
| } |
| $heavy_txt .= "${prefix}_nolargefiles='$value'\n"; |
| } |
| |
| $heavy_txt .= "EOVIRTUAL\n"; |
| |
| $heavy_txt .= <<'ENDOFGIT'; |
| eval { |
| # do not have hairy conniptions if this isnt available |
| require 'Config_git.pl'; |
| $Config_SH_expanded .= $Config::Git_Data; |
| 1; |
| } or warn "Warning: failed to load Config_git.pl, something strange about this perl...\n"; |
| ENDOFGIT |
| |
| $heavy_txt .= $fetch_string; |
| |
| $config_txt .= <<'ENDOFEND'; |
| |
| sub FETCH { |
| my($self, $key) = @_; |
| |
| # check for cached value (which may be undef so we use exists not defined) |
| return exists $self->{$key} ? $self->{$key} : $self->fetch_string($key); |
| } |
| |
| ENDOFEND |
| |
| $heavy_txt .= <<'ENDOFEND'; |
| |
| my $prevpos = 0; |
| |
| sub FIRSTKEY { |
| $prevpos = 0; |
| substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 ); |
| } |
| |
| sub NEXTKEY { |
| ENDOFEND |
| if ($seen_quotes{'"'}) { |
| $heavy_txt .= <<'ENDOFEND'; |
| # Find out how the current key's quoted so we can skip to its end. |
| my $quote = substr($Config_SH_expanded, |
| index($Config_SH_expanded, "=", $prevpos)+1, 1); |
| my $pos = index($Config_SH_expanded, qq($quote\n), $prevpos) + 2; |
| ENDOFEND |
| } else { |
| # Just ' quotes, so it's much easier. |
| $heavy_txt .= <<'ENDOFEND'; |
| my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2; |
| ENDOFEND |
| } |
| $heavy_txt .= <<'ENDOFEND'; |
| my $len = index($Config_SH_expanded, "=", $pos) - $pos; |
| $prevpos = $pos; |
| $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef; |
| } |
| |
| sub EXISTS { |
| return 1 if exists($_[0]->{$_[1]}); |
| |
| return(index($Config_SH_expanded, "\n$_[1]='") != -1 |
| ENDOFEND |
| if ($seen_quotes{'"'}) { |
| $heavy_txt .= <<'ENDOFEND'; |
| or index($Config_SH_expanded, "\n$_[1]=\"") != -1 |
| ENDOFEND |
| } |
| $heavy_txt .= <<'ENDOFEND'; |
| ); |
| } |
| |
| sub STORE { die "\%Config::Config is read-only\n" } |
| *DELETE = *CLEAR = \*STORE; # Typeglob aliasing uses less space |
| |
| sub config_sh { |
| substr $Config_SH_expanded, 1, $config_sh_len; |
| } |
| |
| sub config_re { |
| my $re = shift; |
| return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/, |
| $Config_SH_expanded; |
| } |
| |
| sub config_vars { |
| # implements -V:cfgvar option (see perlrun -V:) |
| foreach (@_) { |
| # find optional leading, trailing colons; and query-spec |
| my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft, |
| # map colon-flags to print decorations |
| my $prfx = $notag ? '': "$qry="; # tag-prefix for print |
| my $lnend = $lncont ? ' ' : ";\n"; # line ending for print |
| |
| # all config-vars are by definition \w only, any \W means regex |
| if ($qry =~ /\W/) { |
| my @matches = config_re($qry); |
| print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag; |
| print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag; |
| } else { |
| my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry} |
| : 'UNKNOWN'; |
| $v = 'undef' unless defined $v; |
| print "${prfx}'${v}'$lnend"; |
| } |
| } |
| } |
| |
| # Called by the real AUTOLOAD |
| sub launcher { |
| undef &AUTOLOAD; |
| goto \&$Config::AUTOLOAD; |
| } |
| |
| 1; |
| ENDOFEND |
| |
| if ($^O eq 'os2') { |
| $config_txt .= <<'ENDOFSET'; |
| my %preconfig; |
| if ($OS2::is_aout) { |
| my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m; |
| for (split ' ', $value) { |
| ($v) = $Config_SH_expanded =~ m/^aout_$_='(.*)'\s*$/m; |
| $preconfig{$_} = $v eq 'undef' ? undef : $v; |
| } |
| } |
| $preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't |
| sub TIEHASH { bless {%preconfig} } |
| ENDOFSET |
| # Extract the name of the DLL from the makefile to avoid duplication |
| my ($f) = grep -r, qw(GNUMakefile Makefile); |
| my $dll; |
| if (open my $fh, '<', $f) { |
| while (<$fh>) { |
| $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/; |
| } |
| } |
| $config_txt .= <<ENDOFSET if $dll; |
| \$preconfig{dll_name} = '$dll'; |
| ENDOFSET |
| } else { |
| $config_txt .= <<'ENDOFSET'; |
| sub TIEHASH { |
| bless $_[1], $_[0]; |
| } |
| ENDOFSET |
| } |
| |
| foreach my $key (keys %Common) { |
| my $value = fetch_string ({}, $key); |
| # Is it safe on the LHS of => ? |
| my $qkey = $key =~ /^[A-Za-z_][A-Za-z0-9_]*$/ ? $key : "'$key'"; |
| if (defined $value) { |
| # Quote things for a '' string |
| $value =~ s!\\!\\\\!g; |
| $value =~ s!'!\\'!g; |
| $value = "'$value'"; |
| if ($key eq 'otherlibdirs') { |
| $value = "join (':', map {relocate_inc(\$_)} split (':', $value))"; |
| } elsif ($need_relocation{$key}) { |
| $value = "relocate_inc($value)"; |
| } |
| } else { |
| $value = "undef"; |
| } |
| $Common{$key} = "$qkey => $value"; |
| } |
| |
| if ($Common{byteorder}) { |
| $Common{byteorder} = 'byteorder => $byteorder'; |
| } |
| my $fast_config = join '', map { " $_,\n" } sort values %Common; |
| |
| # Sanity check needed to stop an infite loop if Config_heavy.pl fails to define |
| # &launcher for some reason (eg it got truncated) |
| $config_txt .= sprintf <<'ENDOFTIE', $fast_config; |
| |
| sub DESTROY { } |
| |
| sub AUTOLOAD { |
| require 'Config_heavy.pl'; |
| goto \&launcher unless $Config::AUTOLOAD =~ /launcher$/; |
| die "&Config::AUTOLOAD failed on $Config::AUTOLOAD"; |
| } |
| |
| # tie returns the object, so the value returned to require will be true. |
| tie %%Config, 'Config', { |
| %s}; |
| ENDOFTIE |
| |
| |
| open(CONFIG_POD, ">$Config_POD") or die "Can't open $Config_POD: $!"; |
| print CONFIG_POD <<'ENDOFTAIL'; |
| =head1 NAME |
| |
| Config - access Perl configuration information |
| |
| =head1 SYNOPSIS |
| |
| use Config; |
| if ($Config{usethreads}) { |
| print "has thread support\n" |
| } |
| |
| use Config qw(myconfig config_sh config_vars config_re); |
| |
| print myconfig(); |
| |
| print config_sh(); |
| |
| print config_re(); |
| |
| config_vars(qw(osname archname)); |
| |
| |
| =head1 DESCRIPTION |
| |
| The Config module contains all the information that was available to |
| the C<Configure> program at Perl build time (over 900 values). |
| |
| Shell variables from the F<config.sh> file (written by Configure) are |
| stored in the readonly-variable C<%Config>, indexed by their names. |
| |
| Values stored in config.sh as 'undef' are returned as undefined |
| values. The perl C<exists> function can be used to check if a |
| named variable exists. |
| |
| For a description of the variables, please have a look at the |
| Glossary file, as written in the Porting folder, or use the url: |
| http://perl5.git.perl.org/perl.git/blob/HEAD:/Porting/Glossary |
| |
| =over 4 |
| |
| =item myconfig() |
| |
| Returns a textual summary of the major perl configuration values. |
| See also C<-V> in L<perlrun/Command Switches>. |
| |
| =item config_sh() |
| |
| Returns the entire perl configuration information in the form of the |
| original config.sh shell variable assignment script. |
| |
| =item config_re($regex) |
| |
| Like config_sh() but returns, as a list, only the config entries who's |
| names match the $regex. |
| |
| =item config_vars(@names) |
| |
| Prints to STDOUT the values of the named configuration variable. Each is |
| printed on a separate line in the form: |
| |
| name='value'; |
| |
| Names which are unknown are output as C<name='UNKNOWN';>. |
| See also C<-V:name> in L<perlrun/Command Switches>. |
| |
| =item bincompat_options() |
| |
| Returns a list of C pre-processor options used when compiling this F<perl> |
| binary, which affect its binary compatibility with extensions. |
| C<bincompat_options()> and C<non_bincompat_options()> are shown together in |
| the output of C<perl -V> as I<Compile-time options>. |
| |
| =item non_bincompat_options() |
| |
| Returns a list of C pre-processor options used when compiling this F<perl> |
| binary, which do not affect binary compatibility with extensions. |
| |
| =item compile_date() |
| |
| Returns the compile date (as a string), equivalent to what is shown by |
| C<perl -V> |
| |
| =item local_patches() |
| |
| Returns a list of the names of locally applied patches, equivalent to what |
| is shown by C<perl -V>. |
| |
| =item header_files() |
| |
| Returns a list of the header files that should be used as dependencies for |
| XS code, for this version of Perl on this platform. |
| |
| =back |
| |
| =head1 EXAMPLE |
| |
| Here's a more sophisticated example of using %Config: |
| |
| use Config; |
| use strict; |
| |
| my %sig_num; |
| my @sig_name; |
| unless($Config{sig_name} && $Config{sig_num}) { |
| die "No sigs?"; |
| } else { |
| my @names = split ' ', $Config{sig_name}; |
| @sig_num{@names} = split ' ', $Config{sig_num}; |
| foreach (@names) { |
| $sig_name[$sig_num{$_}] ||= $_; |
| } |
| } |
| |
| print "signal #17 = $sig_name[17]\n"; |
| if ($sig_num{ALRM}) { |
| print "SIGALRM is $sig_num{ALRM}\n"; |
| } |
| |
| =head1 WARNING |
| |
| Because this information is not stored within the perl executable |
| itself it is possible (but unlikely) that the information does not |
| relate to the actual perl binary which is being used to access it. |
| |
| The Config module is installed into the architecture and version |
| specific library directory ($Config{installarchlib}) and it checks the |
| perl version number when loaded. |
| |
| The values stored in config.sh may be either single-quoted or |
| double-quoted. Double-quoted strings are handy for those cases where you |
| need to include escape sequences in the strings. To avoid runtime variable |
| interpolation, any C<$> and C<@> characters are replaced by C<\$> and |
| C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$> |
| or C<\@> in double-quoted strings unless you're willing to deal with the |
| consequences. (The slashes will end up escaped and the C<$> or C<@> will |
| trigger variable interpolation) |
| |
| =head1 GLOSSARY |
| |
| Most C<Config> variables are determined by the C<Configure> script |
| on platforms supported by it (which is most UNIX platforms). Some |
| platforms have custom-made C<Config> variables, and may thus not have |
| some of the variables described below, or may have extraneous variables |
| specific to that particular port. See the port specific documentation |
| in such cases. |
| |
| =cut |
| |
| ENDOFTAIL |
| |
| if ($Opts{glossary}) { |
| open(GLOS, "<$Glossary") or die "Can't open $Glossary: $!"; |
| } |
| my %seen = (); |
| my $text = 0; |
| $/ = ''; |
| |
| sub process { |
| if (s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m) { |
| my $c = substr $1, 0, 1; |
| unless ($seen{$c}++) { |
| print CONFIG_POD <<EOF if $text; |
| =back |
| |
| =cut |
| |
| EOF |
| print CONFIG_POD <<EOF; |
| =head2 $c |
| |
| =over 4 |
| |
| =cut |
| |
| EOF |
| $text = 1; |
| } |
| } |
| elsif (!$text || !/\A\t/) { |
| warn "Expected a Configure variable header", |
| ($text ? " or another paragraph of description" : () ); |
| } |
| s/n't/n\00t/g; # leave can't, won't etc untouched |
| s/^\t\s+(.*)/\n$1/gm; # Indented lines ===> new paragraph |
| s/^(?<!\n\n)\t(.*)/$1/gm; # Not indented lines ===> text |
| s{([\'\"])(?=[^\'\"\s]*[./][^\'\"\s]*\1)([^\'\"\s]+)\1}(F<$2>)g; # '.o' |
| s{([\'\"])([^\'\"\s]+)\1}(C<$2>)g; # "date" command |
| s{\'([A-Za-z_\- *=/]+)\'}(C<$1>)g; # 'ln -s' |
| s{ |
| (?<! [\w./<\'\"] ) # Only standalone file names |
| (?! e \. g \. ) # Not e.g. |
| (?! \. \. \. ) # Not ... |
| (?! \d ) # Not 5.004 |
| (?! read/ ) # Not read/write |
| (?! etc\. ) # Not etc. |
| (?! I/O ) # Not I/O |
| ( |
| \$ ? # Allow leading $ |
| [\w./]* [./] [\w./]* # Require . or / inside |
| ) |
| (?<! \. (?= [\s)] ) ) # Do not include trailing dot |
| (?! [\w/] ) # Include all of it |
| } |
| (F<$1>)xg; # /usr/local |
| s/((?<=\s)~\w*)/F<$1>/g; # ~name |
| s/(?<![.<\'\"])\b([A-Z_]{2,})\b(?![\'\"])/C<$1>/g; # UNISTD |
| s/(?<![.<\'\"])\b(?!the\b)(\w+)\s+macro\b/C<$1> macro/g; # FILE_cnt macro |
| s/n[\0]t/n't/g; # undo can't, won't damage |
| } |
| |
| if ($Opts{glossary}) { |
| <GLOS>; # Skip the "DO NOT EDIT" |
| <GLOS>; # Skip the preamble |
| while (<GLOS>) { |
| process; |
| print CONFIG_POD; |
| } |
| } |
| |
| print CONFIG_POD <<'ENDOFTAIL'; |
| |
| =back |
| |
| =head1 GIT DATA |
| |
| Information on the git commit from which the current perl binary was compiled |
| can be found in the variable C<$Config::Git_Data>. The variable is a |
| structured string that looks something like this: |
| |
| git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52' |
| git_describe='GitLive-blead-1076-gea0c2db' |
| git_branch='smartmatch' |
| git_uncommitted_changes='' |
| git_commit_id_title='Commit id:' |
| git_commit_date='2009-05-09 17:47:31 +0200' |
| |
| Its format is not guaranteed not to change over time. |
| |
| =head1 NOTE |
| |
| This module contains a good example of how to use tie to implement a |
| cache and an example of how to make a tied variable readonly to those |
| outside of it. |
| |
| =cut |
| |
| ENDOFTAIL |
| |
| close(GLOS) if $Opts{glossary}; |
| close(CONFIG_POD); |
| print "written $Config_POD\n"; |
| |
| my $orig_config_txt = ""; |
| my $orig_heavy_txt = ""; |
| { |
| local $/; |
| my $fh; |
| $orig_config_txt = <$fh> if open $fh, "<", $Config_PM; |
| $orig_heavy_txt = <$fh> if open $fh, "<", $Config_heavy; |
| } |
| |
| if ($orig_config_txt ne $config_txt or $orig_heavy_txt ne $heavy_txt) { |
| open CONFIG, ">", $Config_PM or die "Can't open $Config_PM: $!\n"; |
| open CONFIG_HEAVY, ">", $Config_heavy or die "Can't open $Config_heavy: $!\n"; |
| print CONFIG $config_txt; |
| print CONFIG_HEAVY $heavy_txt; |
| close(CONFIG_HEAVY); |
| close(CONFIG); |
| print "updated $Config_PM\n"; |
| print "updated $Config_heavy\n"; |
| } |
| |
| |
| # Now create Cross.pm if needed |
| if ($Opts{cross}) { |
| open CROSS, ">lib/Cross.pm" or die "Can not open >lib/Cross.pm: $!"; |
| my $cross = <<'EOS'; |
| # typical invocation: |
| # perl -MCross Makefile.PL |
| # perl -MCross=wince -V:cc |
| package Cross; |
| |
| sub import { |
| my ($package,$platform) = @_; |
| unless (defined $platform) { |
| # if $platform is not specified, then use last one when |
| # 'configpm; was invoked with --cross option |
| $platform = '***replace-marker***'; |
| } |
| @INC = map {/\blib\b/?(do{local $_=$_;s/\blib\b/xlib\/$platform/;$_},$_):($_)} @INC; |
| $::Cross::platform = $platform; |
| } |
| |
| 1; |
| EOS |
| $cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g; |
| print CROSS $cross; |
| close CROSS; |
| print "written lib/Cross.pm\n"; |
| unshift(@INC,"xlib/$Opts{cross}"); |
| } |
| |
| # Now do some simple tests on the Config.pm file we have created |
| unshift(@INC,'lib'); |
| unshift(@INC,'xlib/symbian') if $Opts{cross}; |
| require $Config_PM; |
| require $Config_heavy; |
| import Config; |
| |
| die "$0: $Config_PM not valid" |
| unless $Config{'PERL_CONFIG_SH'} eq 'true'; |
| |
| die "$0: error processing $Config_PM" |
| if defined($Config{'an impossible name'}) |
| or $Config{'PERL_CONFIG_SH'} ne 'true' # test cache |
| ; |
| |
| die "$0: error processing $Config_PM" |
| if eval '$Config{"cc"} = 1' |
| or eval 'delete $Config{"cc"}' |
| ; |
| |
| |
| exit 0; |
| # Popularity of various entries in %Config, based on a large build and test |
| # run of code in the Fotango build system: |
| __DATA__ |
| path_sep: 8490 |
| d_readlink: 7101 |
| d_symlink: 7101 |
| archlibexp: 4318 |
| sitearchexp: 4305 |
| sitelibexp: 4305 |
| privlibexp: 4163 |
| ldlibpthname: 4041 |
| libpth: 2134 |
| archname: 1591 |
| exe_ext: 1256 |
| scriptdir: 1155 |
| version: 1116 |
| useithreads: 1002 |
| osvers: 982 |
| osname: 851 |
| inc_version_list: 783 |
| dont_use_nlink: 779 |
| intsize: 759 |
| usevendorprefix: 642 |
| dlsrc: 624 |
| cc: 541 |
| lib_ext: 520 |
| so: 512 |
| ld: 501 |
| ccdlflags: 500 |
| ldflags: 495 |
| obj_ext: 495 |
| cccdlflags: 493 |
| lddlflags: 493 |
| ar: 492 |
| dlext: 492 |
| libc: 492 |
| ranlib: 492 |
| full_ar: 491 |
| vendorarchexp: 491 |
| vendorlibexp: 491 |
| installman1dir: 489 |
| installman3dir: 489 |
| installsitebin: 489 |
| installsiteman1dir: 489 |
| installsiteman3dir: 489 |
| installvendorman1dir: 489 |
| installvendorman3dir: 489 |
| d_flexfnam: 474 |
| eunicefix: 360 |
| d_link: 347 |
| installsitearch: 344 |
| installscript: 341 |
| installprivlib: 337 |
| binexp: 336 |
| installarchlib: 336 |
| installprefixexp: 336 |
| installsitelib: 336 |
| installstyle: 336 |
| installvendorarch: 336 |
| installvendorbin: 336 |
| installvendorlib: 336 |
| man1ext: 336 |
| man3ext: 336 |
| sh: 336 |
| siteprefixexp: 336 |
| installbin: 335 |
| usedl: 332 |
| ccflags: 285 |
| startperl: 232 |
| optimize: 231 |
| usemymalloc: 229 |
| cpprun: 228 |
| sharpbang: 228 |
| perllibs: 225 |
| usesfio: 224 |
| usethreads: 220 |
| perlpath: 218 |
| extensions: 217 |
| usesocks: 208 |
| shellflags: 198 |
| make: 191 |
| d_pwage: 189 |
| d_pwchange: 189 |
| d_pwclass: 189 |
| d_pwcomment: 189 |
| d_pwexpire: 189 |
| d_pwgecos: 189 |
| d_pwpasswd: 189 |
| d_pwquota: 189 |
| gccversion: 189 |
| libs: 186 |
| useshrplib: 186 |
| cppflags: 185 |
| ptrsize: 185 |
| shrpenv: 185 |
| static_ext: 185 |
| use5005threads: 185 |
| uselargefiles: 185 |
| alignbytes: 184 |
| byteorder: 184 |
| ccversion: 184 |
| config_args: 184 |
| cppminus: 184 |