5 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
6 # 2002, 2003, 2004, 2005, 2006, 2007 Larry Wall and others.
14 # lib/Cross.pm (optionally)
17 # from the contents of the static files
22 # and from the contents of the Configure-generated file
26 # Note that output directory is xlib/[cross-name]/ for cross-compiling
28 # It will only update Config.pm and Config_heavy.pl if the contents of
29 # either file would be different. Note that *both* files are updated in
30 # this case, since for example an extension makefile that has a dependency
31 # on Config.pm should trigger even if only Config_heavy.pl has changed.
33 sub usage { die <<EOF }
35 --cross=PLATFORM cross-compile for a different platform
36 --no-glossary don't include Porting/Glossary in lib/Config.pod
40 use vars qw(%Config $Config_SH_expanded);
42 my $how_many_common = 22;
44 # commonly used names to precache (and hence lookup fastest)
47 while ($how_many_common--) {
50 /^(\S+):\s*(\d+)$/ or die "Malformed line '$_'";
54 # names of things which may need to have slashes changed to double-colons
55 my %Extensions = map {($_,$_)}
56 qw(dynamic_ext static_ext extensions known_extensions);
58 # allowed opts as well as specifies default and initial values
60 'cross' => '', # --cross=PLATFORM - crosscompiling for PLATFORM
61 'glossary' => 1, # --no-glossary - no glossary file inclusion,
66 # user specified options
69 (map {/^--([\-_\w]+)=(.*)$/} @ARGV),
70 # --opt --no-opt --noopt
71 (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV),
74 my %opts = (%Allowed_Opts, %given_opts);
76 for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) {
77 warn "option '$opt' is not recognized";
80 @ARGV = grep {!/^--/} @ARGV;
88 my ($Config_SH, $Config_PM, $Config_heavy, $Config_POD);
89 my $Glossary = 'Porting/Glossary';
92 # creating cross-platform config file
94 mkdir "xlib/$Opts{cross}";
95 $Config_PM = "xlib/$Opts{cross}/Config.pm";
96 $Config_POD = "xlib/$Opts{cross}/Config.pod";
97 $Config_SH = "Cross/config-$Opts{cross}.sh";
100 $Config_PM = "lib/Config.pm";
101 $Config_POD = "lib/Config.pod";
102 $Config_SH = "config.sh";
104 ($Config_heavy = $Config_PM) =~ s/\.pm$/_heavy.pl/;
105 die "Can't automatically determine name for Config_heavy.pl from '$Config_PM'"
106 if $Config_heavy eq $Config_PM;
111 $heavy_txt .= <<'ENDOFBEG';
112 # This file was created by configpm when Perl was built. Any changes
113 # made to this file will be lost the next time perl is built.
117 # use warnings; Pulls in Carp
118 # use vars pulls in Carp
121 my $myver = sprintf "%vd", $^V;
123 $config_txt .= sprintf <<'ENDOFBEG', ($myver) x 3;
124 # This file was created by configpm when Perl was built. Any changes
125 # made to this file will be lost the next time perl is built.
129 # use warnings; Pulls in Carp
130 # use vars pulls in Carp
131 @Config::EXPORT = qw(%%Config);
132 @Config::EXPORT_OK = qw(myconfig config_sh config_vars config_re);
134 # Need to stub all the functions to make code such as print Config::config_sh
142 my %%Export_Cache = map {($_ => 1)} (@Config::EXPORT, @Config::EXPORT_OK);
146 # Define our own import method to avoid pulling in the full Exporter:
149 @_ = @Config::EXPORT unless @_;
151 my @funcs = grep $_ ne '%%Config', @_;
152 my $export_Config = @funcs < @_ ? 1 : 0;
155 my $callpkg = caller(0);
156 foreach my $func (@funcs) {
157 die sprintf qq{"%%s" is not exported by the %%s module\n},
158 $func, __PACKAGE__ unless $Export_Cache{$func};
159 *{$callpkg.'::'.$func} = \&{$func};
162 *{"$callpkg\::Config"} = \%%Config if $export_Config;
166 die "Perl lib version (%s) doesn't match executable version ($])"
170 or die "Perl lib version (%s) doesn't match executable version (" .
171 sprintf("v%%vd",$^V) . ")";
185 open(CONFIG_SH, $Config_SH) || die "Can't open $Config_SH: $!";
186 while (<CONFIG_SH>) {
187 next if m:^#!/bin/sh:;
189 # Catch PERL_CONFIG_SH=true and PERL_VERSION=n line from Configure.
190 s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/ or m/^(\w+)='(.*)'$/;
191 my($k, $v) = ($1, $2);
193 # grandfather PATCHLEVEL and SUBVERSION and CONFIG
195 if ($k eq 'PERL_VERSION') {
196 push @v_others, "PATCHLEVEL='$v'\n";
198 elsif ($k eq 'PERL_SUBVERSION') {
199 push @v_others, "SUBVERSION='$v'\n";
201 elsif ($k eq 'PERL_CONFIG_SH') {
202 push @v_others, "CONFIG='$v'\n";
206 # We can delimit things in config.sh with either ' or ".
207 unless ($in_v or m/^(\w+)=(['"])(.*\n)/){
208 push(@non_v, "#$_"); # not a name='value' line
216 ($name,$val) = ($1,$3);
218 $in_v = $val !~ /$quote\n/;
221 s,/,::,g if $Extensions{$name};
223 $val =~ s/$quote\n?\z//;
225 my $line = "$name=$quote$val$quote\n";
226 push(@v_others, $line);
227 $seen_quotes{$quote}++;
232 # This is somewhat grim, but I want the code for parsing config.sh here and
233 # now so that I can expand $Config{ivsize} and $Config{ivtype}
235 my $fetch_string = <<'EOT';
237 # Search for it in the big string
239 my($self, $key) = @_;
243 if ($seen_quotes{'"'}) {
244 # We need the full ' and " code
245 $fetch_string .= <<'EOT';
246 my $quote_type = "'";
247 my $marker = "$key=";
249 # Check for the common case, ' delimited
250 my $start = index($Config_SH_expanded, "\n$marker$quote_type");
251 # If that failed, check for " delimited
254 $start = index($Config_SH_expanded, "\n$marker$quote_type");
258 $fetch_string .= <<'EOT';
259 # We only have ' delimted.
260 my $start = index($Config_SH_expanded, "\n$key=\'");
263 $fetch_string .= <<'EOT';
264 # Start can never be -1 now, as we've rigged the long string we're
265 # searching with an initial dummy newline.
266 return undef if $start == -1;
268 $start += length($key) + 3;
271 if (!$seen_quotes{'"'}) {
272 # Don't need the full ' and " code, or the eval expansion.
273 $fetch_string .= <<'EOT';
274 my $value = substr($Config_SH_expanded, $start,
275 index($Config_SH_expanded, "'\n", $start)
279 $fetch_string .= <<'EOT';
280 my $value = substr($Config_SH_expanded, $start,
281 index($Config_SH_expanded, "$quote_type\n", $start)
284 # If we had a double-quote, we'd better eval it so escape
285 # sequences and such can be interpolated. Since the incoming
286 # value is supposed to follow shell rules and not perl rules,
287 # we escape any perl variable markers
288 if ($quote_type eq '"') {
289 $value =~ s/\$/\\\$/g;
290 $value =~ s/\@/\\\@/g;
291 eval "\$value = \"$value\"";
295 $fetch_string .= <<'EOT';
296 # So we can say "if $Config{'foo'}".
297 $value = undef if $value eq 'undef';
298 $self->{$key} = $value; # cache it
305 # Calculation for the keys for byteorder
306 # This is somewhat grim, but I need to run fetch_string here.
307 our $Config_SH_expanded = join "\n", '', @v_others;
309 my $t = fetch_string ({}, 'ivtype');
310 my $s = fetch_string ({}, 'ivsize');
312 # byteorder does exist on its own but we overlay a virtual
313 # dynamically recomputed value.
315 # However, ivtype and ivsize will not vary for sane fat binaries
317 my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I';
320 if ($s == 4 || $s == 8) {
321 my $list = join ',', reverse(2..$s);
323 $byteorder_code = <<"EOT";
326 foreach my \$c ($list) { \$i |= ord(\$c); \$i <<= 8 }
328 our \$byteorder = join('', unpack('$format', pack('$f', \$i)));
331 $byteorder_code = "our \$byteorder = '?'x$s;\n";
336 if (fetch_string({},'userelocatableinc')) {
337 foreach my $what (qw(prefixexp
386 installvendorhtml1dir
387 installvendorhtml3dir
393 push @need_relocation, $what if fetch_string({}, $what) =~ m!^\.\.\./!;
398 @need_relocation{@need_relocation} = @need_relocation;
400 # This can have .../ anywhere:
401 if (fetch_string({}, 'otherlibdirs') =~ m!\.\.\./!) {
402 $need_relocation{otherlibdirs} = 'otherlibdirs';
405 my $relocation_code = <<'EOT';
409 return $libdir unless $libdir =~ s!^\.\.\./!!;
411 if ($prefix =~ s!/[^/]*$!!) {
412 while ($libdir =~ m!^\.\./!) {
413 # Loop while $libdir starts "../" and $prefix still has a trailing
415 last unless $prefix =~ s!/([^/]+)$!!;
416 # but bail out if the directory we picked off the end of $prefix is .
418 if ($1 eq '.' or $1 eq '..') {
419 # Undo! This should be rare, hence code it this way rather than a
420 # check each time before the s!!! above.
421 $prefix = "$prefix/$1";
424 # Remove that leading ../ and loop again
425 substr ($libdir, 0, 3, '');
427 $libdir = "$prefix/$libdir";
433 if (%need_relocation) {
434 my $relocations_in_common;
435 # otherlibdirs only features in the hash
436 foreach (keys %need_relocation) {
437 $relocations_in_common++ if $Common{$_};
439 if ($relocations_in_common) {
440 $config_txt .= $relocation_code;
442 $heavy_txt .= $relocation_code;
446 $heavy_txt .= join('', @non_v) . "\n";
448 # copy config summary format from the myconfig.SH script
449 $heavy_txt .= "our \$summary = <<'!END!';\n";
450 open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!";
451 1 while defined($_ = <MYCONFIG>) && !/^Summary of/;
452 do { $heavy_txt .= $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
455 $heavy_txt .= "\n!END!\n" . <<'EOT';
456 my $summary_expanded;
459 return $summary_expanded if $summary_expanded;
460 ($summary_expanded = $summary) =~ s{\$(\w+)}
463 if ($1 eq 'git_ancestor_line') {
464 if ($Config::Config{git_ancestor}) {
465 $c= "\n Ancestor: $Config::Config{git_ancestor}";
470 $c = $Config::Config{$1};
472 defined($c) ? $c : 'undef'
481 $heavy_txt .= join('', sort @v_others) . "!END!\n";
483 # Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of
485 if ($Common{byteorder}) {
486 $config_txt .= $byteorder_code;
488 $heavy_txt .= $byteorder_code;
491 if (@need_relocation) {
492 $heavy_txt .= 'foreach my $what (qw(' . join (' ', @need_relocation) .
494 s/^($what=)(['"])(.*?)\2/$1 . $2 . relocate_inc($3) . $2/me;
497 # Currently it only makes sense to do the ... relocation on Unix, so there's
498 # no need to emulate the "which separator for this platform" logic in perl.c -
499 # ':' will always be applicable
500 if ($need_relocation{otherlibdirs}) {
501 $heavy_txt .= << 'EOT';
502 s{^(otherlibdirs=)(['"])(.*?)\2}
503 {$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me;
508 $heavy_txt .= <<'EOT';
509 s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m;
511 my $config_sh_len = length $_;
513 our $Config_SH_expanded = "\n$_" . << 'EOVIRTUAL';
516 foreach my $prefix (qw(ccflags ldflags)) {
517 my $value = fetch_string ({}, $prefix);
518 my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles");
519 if (defined $withlargefiles) {
520 $value =~ s/\Q$withlargefiles\E\b//;
521 $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
525 foreach my $prefix (qw(libs libswanted)) {
526 my $value = fetch_string ({}, $prefix);
527 my $withlf = fetch_string ({}, 'libswanted_uselargefiles');
528 next unless defined $withlf;
530 = split(' ', fetch_string ({}, 'libswanted_uselargefiles'));
533 @lflibswanted{@lflibswanted} = ();
534 if ($prefix eq 'libs') {
535 my @libs = grep { /^-l(.+)/ &&
536 not exists $lflibswanted{$1} }
537 split(' ', fetch_string ({}, 'libs'));
538 $value = join(' ', @libs);
540 my @libswanted = grep { not exists $lflibswanted{$_} }
541 split(' ', fetch_string ({}, 'libswanted'));
542 $value = join(' ', @libswanted);
545 $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
548 $heavy_txt .= "EOVIRTUAL\n";
550 $heavy_txt .= <<'ENDOFGIT';
552 # do not have hairy conniptions if this isnt available
553 require 'Config_git.pl';
554 $Config_SH_expanded .= $Config::Git_Data;
556 } or warn "Warning: failed to load Config_git.pl, something strange about this perl...\n";
559 $heavy_txt .= $fetch_string;
561 $config_txt .= <<'ENDOFEND';
564 my($self, $key) = @_;
566 # check for cached value (which may be undef so we use exists not defined)
567 return $self->{$key} if exists $self->{$key};
569 return $self->fetch_string($key);
573 $heavy_txt .= <<'ENDOFEND';
579 substr($Config_SH_expanded, 1, index($Config_SH_expanded, '=') - 1 );
584 if ($seen_quotes{'"'}) {
585 $heavy_txt .= <<'ENDOFEND';
586 # Find out how the current key's quoted so we can skip to its end.
587 my $quote = substr($Config_SH_expanded,
588 index($Config_SH_expanded, "=", $prevpos)+1, 1);
589 my $pos = index($Config_SH_expanded, qq($quote\n), $prevpos) + 2;
592 # Just ' quotes, so it's much easier.
593 $heavy_txt .= <<'ENDOFEND';
594 my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2;
597 $heavy_txt .= <<'ENDOFEND';
598 my $len = index($Config_SH_expanded, "=", $pos) - $pos;
600 $len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef;
604 return 1 if exists($_[0]->{$_[1]});
606 return(index($Config_SH_expanded, "\n$_[1]='") != -1
608 if ($seen_quotes{'"'}) {
609 $heavy_txt .= <<'ENDOFEND';
610 or index($Config_SH_expanded, "\n$_[1]=\"") != -1
613 $heavy_txt .= <<'ENDOFEND';
617 sub STORE { die "\%Config::Config is read-only\n" }
623 substr $Config_SH_expanded, 1, $config_sh_len;
628 return map { chomp; $_ } grep eval{ /^(?:$re)=/ }, split /^/,
633 # implements -V:cfgvar option (see perlrun -V:)
635 # find optional leading, trailing colons; and query-spec
636 my ($notag,$qry,$lncont) = m/^(:)?(.*?)(:)?$/; # flags fore and aft,
637 # map colon-flags to print decorations
638 my $prfx = $notag ? '': "$qry="; # tag-prefix for print
639 my $lnend = $lncont ? ' ' : ";\n"; # line ending for print
641 # all config-vars are by definition \w only, any \W means regex
643 my @matches = config_re($qry);
644 print map "$_$lnend", @matches ? @matches : "$qry: not found" if !$notag;
645 print map { s/\w+=//; "$_$lnend" } @matches ? @matches : "$qry: not found" if $notag;
647 my $v = (exists $Config::Config{$qry}) ? $Config::Config{$qry}
649 $v = 'undef' unless defined $v;
650 print "${prfx}'${v}'$lnend";
655 # Called by the real AUTOLOAD
658 goto \&$Config::AUTOLOAD;
665 $config_txt .= <<'ENDOFSET';
668 my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m;
669 for (split ' ', $value) {
670 ($v) = $Config_SH_expanded =~ m/^aout_$_='(.*)'\s*$/m;
671 $preconfig{$_} = $v eq 'undef' ? undef : $v;
674 $preconfig{d_fork} = undef unless $OS2::can_fork; # Some funny cases can't
675 sub TIEHASH { bless {%preconfig} }
677 # Extract the name of the DLL from the makefile to avoid duplication
678 my ($f) = grep -r, qw(GNUMakefile Makefile);
680 if (open my $fh, '<', $f) {
682 $dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/;
685 $config_txt .= <<ENDOFSET if $dll;
686 \$preconfig{dll_name} = '$dll';
689 $config_txt .= <<'ENDOFSET';
696 foreach my $key (keys %Common) {
697 my $value = fetch_string ({}, $key);
698 # Is it safe on the LHS of => ?
699 my $qkey = $key =~ /^[A-Za-z_][A-Za-z0-9_]*$/ ? $key : "'$key'";
700 if (defined $value) {
701 # Quote things for a '' string
702 $value =~ s!\\!\\\\!g;
705 if ($key eq 'otherlibdirs') {
706 $value = "join (':', map {relocate_inc(\$_)} split (':', $value))";
707 } elsif ($need_relocation{$key}) {
708 $value = "relocate_inc($value)";
713 $Common{$key} = "$qkey => $value";
716 if ($Common{byteorder}) {
717 $Common{byteorder} = 'byteorder => $byteorder';
719 my $fast_config = join '', map { " $_,\n" } sort values %Common;
721 # Sanity check needed to stop an infite loop if Config_heavy.pl fails to define
722 # &launcher for some reason (eg it got truncated)
723 $config_txt .= sprintf <<'ENDOFTIE', $fast_config;
728 require 'Config_heavy.pl';
729 goto \&launcher unless $Config::AUTOLOAD =~ /launcher$/;
730 die "&Config::AUTOLOAD failed on $Config::AUTOLOAD";
733 # tie returns the object, so the value returned to require will be true.
734 tie %%Config, 'Config', {
739 open(CONFIG_POD, ">$Config_POD") or die "Can't open $Config_POD: $!";
740 print CONFIG_POD <<'ENDOFTAIL';
743 Config - access Perl configuration information
748 if ($Config{usethreads}) {
749 print "has thread support\n"
752 use Config qw(myconfig config_sh config_vars config_re);
760 config_vars(qw(osname archname));
765 The Config module contains all the information that was available to
766 the C<Configure> program at Perl build time (over 900 values).
768 Shell variables from the F<config.sh> file (written by Configure) are
769 stored in the readonly-variable C<%Config>, indexed by their names.
771 Values stored in config.sh as 'undef' are returned as undefined
772 values. The perl C<exists> function can be used to check if a
773 named variable exists.
779 Returns a textual summary of the major perl configuration values.
780 See also C<-V> in L<perlrun/Switches>.
784 Returns the entire perl configuration information in the form of the
785 original config.sh shell variable assignment script.
787 =item config_re($regex)
789 Like config_sh() but returns, as a list, only the config entries who's
790 names match the $regex.
792 =item config_vars(@names)
794 Prints to STDOUT the values of the named configuration variable. Each is
795 printed on a separate line in the form:
799 Names which are unknown are output as C<name='UNKNOWN';>.
800 See also C<-V:name> in L<perlrun/Switches>.
806 Here's a more sophisticated example of using %Config:
813 unless($Config{sig_name} && $Config{sig_num}) {
816 my @names = split ' ', $Config{sig_name};
817 @sig_num{@names} = split ' ', $Config{sig_num};
819 $sig_name[$sig_num{$_}] ||= $_;
823 print "signal #17 = $sig_name[17]\n";
824 if ($sig_num{ALRM}) {
825 print "SIGALRM is $sig_num{ALRM}\n";
830 Because this information is not stored within the perl executable
831 itself it is possible (but unlikely) that the information does not
832 relate to the actual perl binary which is being used to access it.
834 The Config module is installed into the architecture and version
835 specific library directory ($Config{installarchlib}) and it checks the
836 perl version number when loaded.
838 The values stored in config.sh may be either single-quoted or
839 double-quoted. Double-quoted strings are handy for those cases where you
840 need to include escape sequences in the strings. To avoid runtime variable
841 interpolation, any C<$> and C<@> characters are replaced by C<\$> and
842 C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$>
843 or C<\@> in double-quoted strings unless you're willing to deal with the
844 consequences. (The slashes will end up escaped and the C<$> or C<@> will
845 trigger variable interpolation)
849 Most C<Config> variables are determined by the C<Configure> script
850 on platforms supported by it (which is most UNIX platforms). Some
851 platforms have custom-made C<Config> variables, and may thus not have
852 some of the variables described below, or may have extraneous variables
853 specific to that particular port. See the port specific documentation
860 if ($Opts{glossary}) {
861 open(GLOS, "<$Glossary") or die "Can't open $Glossary: $!";
868 if (s/\A(\w*)\s+\(([\w.]+)\):\s*\n(\t?)/=item C<$1>\n\nFrom F<$2>:\n\n/m) {
869 my $c = substr $1, 0, 1;
870 unless ($seen{$c}++) {
871 print CONFIG_POD <<EOF if $text;
877 print CONFIG_POD <<EOF;
888 elsif (!$text || !/\A\t/) {
889 warn "Expected a Configure variable header",
890 ($text ? " or another paragraph of description" : () );
892 s/n't/n\00t/g; # leave can't, won't etc untouched
893 s/^\t\s+(.*)/\n$1/gm; # Indented lines ===> new paragraph
894 s/^(?<!\n\n)\t(.*)/$1/gm; # Not indented lines ===> text
895 s{([\'\"])(?=[^\'\"\s]*[./][^\'\"\s]*\1)([^\'\"\s]+)\1}(F<$2>)g; # '.o'
896 s{([\'\"])([^\'\"\s]+)\1}(C<$2>)g; # "date" command
897 s{\'([A-Za-z_\- *=/]+)\'}(C<$1>)g; # 'ln -s'
899 (?<! [\w./<\'\"] ) # Only standalone file names
900 (?! e \. g \. ) # Not e.g.
901 (?! \. \. \. ) # Not ...
903 (?! read/ ) # Not read/write
904 (?! etc\. ) # Not etc.
907 \$ ? # Allow leading $
908 [\w./]* [./] [\w./]* # Require . or / inside
910 (?<! \. (?= [\s)] ) ) # Do not include trailing dot
911 (?! [\w/] ) # Include all of it
913 (F<$1>)xg; # /usr/local
914 s/((?<=\s)~\w*)/F<$1>/g; # ~name
915 s/(?<![.<\'\"])\b([A-Z_]{2,})\b(?![\'\"])/C<$1>/g; # UNISTD
916 s/(?<![.<\'\"])\b(?!the\b)(\w+)\s+macro\b/C<$1> macro/g; # FILE_cnt macro
917 s/n[\0]t/n't/g; # undo can't, won't damage
920 if ($Opts{glossary}) {
921 <GLOS>; # Skip the "DO NOT EDIT"
922 <GLOS>; # Skip the preamble
929 print CONFIG_POD <<'ENDOFTAIL';
935 This module contains a good example of how to use tie to implement a
936 cache and an example of how to make a tied variable readonly to those
943 close(GLOS) if $Opts{glossary};
945 print "written $Config_POD\n";
947 my $orig_config_txt = "";
948 my $orig_heavy_txt = "";
952 $orig_config_txt = <$fh> if open $fh, "<", $Config_PM;
953 $orig_heavy_txt = <$fh> if open $fh, "<", $Config_heavy;
956 if ($orig_config_txt ne $config_txt or $orig_heavy_txt ne $heavy_txt) {
957 open CONFIG, ">", $Config_PM or die "Can't open $Config_PM: $!\n";
958 open CONFIG_HEAVY, ">", $Config_heavy or die "Can't open $Config_heavy: $!\n";
959 print CONFIG $config_txt;
960 print CONFIG_HEAVY $heavy_txt;
963 print "updated $Config_PM\n";
964 print "updated $Config_heavy\n";
968 # Now create Cross.pm if needed
970 open CROSS, ">lib/Cross.pm" or die "Can not open >lib/Cross.pm: $!";
972 # typical invocation:
973 # perl -MCross Makefile.PL
974 # perl -MCross=wince -V:cc
978 my ($package,$platform) = @_;
979 unless (defined $platform) {
980 # if $platform is not specified, then use last one when
981 # 'configpm; was invoked with --cross option
982 $platform = '***replace-marker***';
984 @INC = map {/\blib\b/?(do{local $_=$_;s/\blib\b/xlib\/$platform/;$_},$_):($_)} @INC;
985 $::Cross::platform = $platform;
990 $cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g;
993 print "written lib/Cross.pm\n";
994 unshift(@INC,"xlib/$Opts{cross}");
997 # Now do some simple tests on the Config.pm file we have created
999 unshift(@INC,'xlib/symbian') if $Opts{cross};
1001 require $Config_heavy;
1004 die "$0: $Config_PM not valid"
1005 unless $Config{'PERL_CONFIG_SH'} eq 'true';
1007 die "$0: error processing $Config_PM"
1008 if defined($Config{'an impossible name'})
1009 or $Config{'PERL_CONFIG_SH'} ne 'true' # test cache
1012 die "$0: error processing $Config_PM"
1013 if eval '$Config{"cc"} = 1'
1014 or eval 'delete $Config{"cc"}'
1019 # Popularity of various entries in %Config, based on a large build and test
1020 # run of code in the Fotango build system:
1038 inc_version_list: 783
1041 usevendorprefix: 642
1062 installsiteman1dir: 489
1063 installsiteman3dir: 489
1064 installvendorman1dir: 489
1065 installvendorman3dir: 489
1069 installsitearch: 344
1074 installprefixexp: 336
1077 installvendorarch: 336
1078 installvendorbin: 336
1079 installvendorlib: 336