140 lines
3.2 KiB
Perl
140 lines
3.2 KiB
Perl
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# minimod.PL writes the contents of miniperlmain.c into the module
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# ExtUtils::Miniperl for later perusal (when the perl source is
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# deleted)
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#
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# It also writes the subroutine writemain(), which takes as its
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# arguments module names that shall be statically linked into perl.
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#
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# Authors: Andreas Koenig <k@franz.ww.TU-Berlin.DE>, Tim Bunce
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# <Tim.Bunce@ig.co.uk>
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#
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# Version 1.0, Feb 2nd 1995 by Andreas Koenig
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print <<'END';
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# This File keeps the contents of miniperlmain.c.
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#
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# It was generated automatically by minimod.PL from the contents
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# of miniperlmain.c. Don't edit this file!
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#
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# ANY CHANGES MADE HERE WILL BE LOST!
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#
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package ExtUtils::Miniperl;
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require Exporter;
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@ISA = qw(Exporter);
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@EXPORT = qw(&writemain);
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$head= <<'EOF!HEAD';
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END
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open MINI, "miniperlmain.c";
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while (<MINI>) {
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last if /Do not delete this line--writemain depends on it/;
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print;
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}
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print <<'END';
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EOF!HEAD
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$tail=<<'EOF!TAIL';
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END
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while (<MINI>) {
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print unless /dXSUB_SYS/;
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}
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close MINI;
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print <<'END';
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EOF!TAIL
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sub writemain{
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my(@exts) = @_;
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my($pname);
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my($dl) = canon('/','DynaLoader');
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print $head;
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foreach $_ (@exts){
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my($pname) = canon('/', $_);
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my($mname, $cname);
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($mname = $pname) =~ s!/!::!g;
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($cname = $pname) =~ s!/!__!g;
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print "EXTERN_C void boot_${cname} _((CV* cv));\n";
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}
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my ($tail1,$tail2) = ( $tail =~ /\A(.*\n)(\s*\}.*)\Z/s );
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print $tail1;
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print "\tchar *file = __FILE__;\n";
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print "\tdXSUB_SYS;\n" if $] > 5.002;
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foreach $_ (@exts){
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my($pname) = canon('/', $_);
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my($mname, $cname, $ccode);
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($mname = $pname) =~ s!/!::!g;
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($cname = $pname) =~ s!/!__!g;
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print "\t{\n";
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if ($pname eq $dl){
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# Must NOT install 'DynaLoader::boot_DynaLoader' as 'bootstrap'!
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# boot_DynaLoader is called directly in DynaLoader.pm
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$ccode = "\t/* DynaLoader is a special case */\n
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\tnewXS(\"${mname}::boot_${cname}\", boot_${cname}, file);\n";
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print $ccode unless $SEEN{$ccode}++;
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} else {
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$ccode = "\tnewXS(\"${mname}::bootstrap\", boot_${cname}, file);\n";
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print $ccode unless $SEEN{$ccode}++;
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}
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print "\t}\n";
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}
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print $tail2;
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}
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sub canon{
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my($as, @ext) = @_;
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foreach(@ext){
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# might be X::Y or lib/auto/X/Y/Y.a
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next if s!::!/!g;
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s:^(lib|ext)/(auto/)?::;
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s:/\w+\.\w+$::;
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}
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grep(s:/:$as:, @ext) if ($as ne '/');
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@ext;
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}
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1;
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__END__
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=head1 NAME
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ExtUtils::Miniperl, writemain - write the C code for perlmain.c
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=head1 SYNOPSIS
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C<use ExtUtils::Miniperl;>
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C<writemain(@directories);>
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=head1 DESCRIPTION
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This whole module is written when perl itself is built from a script
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called minimod.PL. In case you want to patch it, please patch
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minimod.PL in the perl distribution instead.
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writemain() takes an argument list of directories containing archive
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libraries that relate to perl modules and should be linked into a new
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perl binary. It writes to STDOUT a corresponding perlmain.c file that
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is a plain C file containing all the bootstrap code to make the
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modules associated with the libraries available from within perl.
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The typical usage is from within a Makefile generated by
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ExtUtils::MakeMaker. So under normal circumstances you won't have to
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deal with this module directly.
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=head1 SEE ALSO
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L<ExtUtils::MakeMaker>
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=cut
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END
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