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124 lines
3.3 KiB
Perl
124 lines
3.3 KiB
Perl
#!./miniperl -w
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use strict;
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my $osname = $^O;
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my $file = 'lib/buildcustomize.pl';
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if ( @ARGV % 2 ) {
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my $dir = shift;
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chdir $dir or die "Can't chdir '$dir': $!";
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unshift @INC, 'lib';
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}
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if ( @ARGV ) {
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# Used during cross-compilation.
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$osname = $ARGV[1];
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}
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# To clarify, this isn't the entire suite of modules considered "toolchain"
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# It's not even all modules needed to build ext/
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# It's just the source paths of the (minimum complete set of) modules in ext/
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# needed to build the nonxs modules
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# After which, all nonxs modules are in lib, which was always sufficient to
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# allow miniperl to build everything else.
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# Getopt::Long is here because it's used by podlators, which is one of the
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# nonxs modules.
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# Term::ReadLine is not here for building but for allowing the debugger to
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# run under miniperl when nothing but miniperl will build :-(.
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# Text::ParseWords is required in ExtUtils::Liblist::Kid
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my @toolchain = qw(
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cpan/AutoLoader/lib
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dist/Carp/lib
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dist/PathTools
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dist/PathTools/lib
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cpan/ExtUtils-Install/lib
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cpan/ExtUtils-MakeMaker/lib
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cpan/ExtUtils-Manifest/lib
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cpan/File-Path/lib
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ext/re
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dist/Term-ReadLine/lib
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dist/Exporter/lib
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ext/File-Find/lib
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cpan/Text-Tabs/lib
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dist/constant/lib
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cpan/version/lib
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cpan/Getopt-Long/lib
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cpan/Text-ParseWords/lib
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cpan/ExtUtils-PL2Bat/lib
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);
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# These are for XS building on Win32, since nonxs and xs build simultaneously
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# on Win32 if parallel building
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push @toolchain, qw(
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dist/ExtUtils-ParseXS/lib
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cpan/parent/lib
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cpan/ExtUtils-Constant/lib
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dist/base/lib
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) if $^O eq 'MSWin32';
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push @toolchain, 'ext/VMS-Filespec/lib' if $^O eq 'VMS';
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unshift @INC, @toolchain;
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require File::Spec::Functions;
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require Cwd;
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my $cwd = Cwd::getcwd();
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defined $cwd
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or die "$0: Can't determine current working directory\n";
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# lib must be last, as the toolchain modules write themselves into it
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# as they build, and it's important that @INC order ensures that the partially
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# written files are always masked by the complete versions.
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my $inc = join ",\n ",
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map { "q\0$_\0" }
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(map {File::Spec::Functions::rel2abs($_, $cwd)} (
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# faster build on the non-parallel Win32 build process
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$^O eq 'MSWin32' ? ('lib', @toolchain ) : (@toolchain, 'lib')
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));
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open my $fh, '>', $file
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or die "Can't open $file: $!";
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my $error;
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# If any of the system's build tools are written in Perl, then this module
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# may well be loaded by a much older version than we are building. So keep it
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# as backwards compatible as is easy.
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print $fh <<"EOT" or $error = "Can't print to $file: $!";
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#!perl
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# !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
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# This file is generated by write_buildcustomize.pl.
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# Any changes made here will be lost!
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# We are miniperl, building extensions
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# Replace the first entry of \@INC ("lib") with the list of
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# directories we need.
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splice(\@INC, 0, 1, $inc);
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\$^O = '$osname';
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__END__
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EOT
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if ($error) {
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close $fh
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or warn "Can't unlink $file after error: $!";
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} else {
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if (close $fh) {
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do $file and exit;
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$error = "Can't load generated $file: $@";
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} else {
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$error = "Can't close $file: $!";
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}
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}
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# It's going very wrong, so try to remove the botched file.
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unlink $file
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or warn "Can't unlink $file after error: $!";
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die $error;
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# ex: set ts=8 sts=4 sw=4 et:
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