104 lines
3 KiB
Perl
104 lines
3 KiB
Perl
|
package ExtUtils::Mkbootstrap;
|
||
|
|
|
||
|
|
$VERSION = substr q$Revision: 1.14 $, 10;
|
||
|
|
# $Date: 1996/09/03 17:04:43 $
|
||
|
|
|
||
|
|
use Config;
|
||
|
|
use Exporter;
|
||
|
|
@ISA=('Exporter');
|
||
|
|
@EXPORT='&Mkbootstrap';
|
||
|
|
|
||
|
|
sub Mkbootstrap {
|
||
|
|
my($baseext, @bsloadlibs)=@_;
|
||
|
|
@bsloadlibs = grep($_, @bsloadlibs); # strip empty libs
|
||
|
|
|
||
|
|
print STDOUT " bsloadlibs=@bsloadlibs\n" if $Verbose;
|
||
|
|
|
||
|
|
# We need DynaLoader here because we and/or the *_BS file may
|
||
|
|
# call dl_findfile(). We don't say `use' here because when
|
||
|
|
# first building perl extensions the DynaLoader will not have
|
||
|
|
# been built when MakeMaker gets first used.
|
||
|
|
require DynaLoader;
|
||
|
|
|
||
|
|
rename "$baseext.bs", "$baseext.bso"
|
||
|
|
if -s "$baseext.bs";
|
||
|
|
|
||
|
|
if (-f "${baseext}_BS"){
|
||
|
|
$_ = "${baseext}_BS";
|
||
|
|
package DynaLoader; # execute code as if in DynaLoader
|
||
|
|
local($osname, $dlsrc) = (); # avoid warnings
|
||
|
|
($osname, $dlsrc) = @Config::Config{qw(osname dlsrc)};
|
||
|
|
$bscode = "";
|
||
|
|
unshift @INC, ".";
|
||
|
|
require $_;
|
||
|
|
shift @INC;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($Config{'dlsrc'} =~ /^dl_dld/){
|
||
|
|
package DynaLoader;
|
||
|
|
push(@dl_resolve_using, dl_findfile('-lc'));
|
||
|
|
}
|
||
|
|
|
||
|
|
my(@all) = (@bsloadlibs, @DynaLoader::dl_resolve_using);
|
||
|
|
my($method) = '';
|
||
|
|
if (@all){
|
||
|
|
open BS, ">$baseext.bs"
|
||
|
|
or die "Unable to open $baseext.bs: $!";
|
||
|
|
print STDOUT "Writing $baseext.bs\n";
|
||
|
|
print STDOUT " containing: @all" if $Verbose;
|
||
|
|
print BS "# $baseext DynaLoader bootstrap file for $^O architecture.\n";
|
||
|
|
print BS "# Do not edit this file, changes will be lost.\n";
|
||
|
|
print BS "# This file was automatically generated by the\n";
|
||
|
|
print BS "# Mkbootstrap routine in ExtUtils::Mkbootstrap (v$VERSION).\n";
|
||
|
|
print BS "\@DynaLoader::dl_resolve_using = ";
|
||
|
|
# If @all contains names in the form -lxxx or -Lxxx then it's asking for
|
||
|
|
# runtime library location so we automatically add a call to dl_findfile()
|
||
|
|
if (" @all" =~ m/ -[lLR]/){
|
||
|
|
print BS " dl_findfile(qw(\n @all\n ));\n";
|
||
|
|
}else{
|
||
|
|
print BS " qw(@all);\n";
|
||
|
|
}
|
||
|
|
# write extra code if *_BS says so
|
||
|
|
print BS $DynaLoader::bscode if $DynaLoader::bscode;
|
||
|
|
print BS "\n1;\n";
|
||
|
|
close BS;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
ExtUtils::Mkbootstrap - make a bootstrap file for use by DynaLoader
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
C<mkbootstrap>
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
Mkbootstrap typically gets called from an extension Makefile.
|
||
|
|
|
||
|
|
There is no C<*.bs> file supplied with the extension. Instead a
|
||
|
|
C<*_BS> file which has code for the special cases, like posix for
|
||
|
|
berkeley db on the NeXT.
|
||
|
|
|
||
|
|
This file will get parsed, and produce a maybe empty
|
||
|
|
C<@DynaLoader::dl_resolve_using> array for the current architecture.
|
||
|
|
That will be extended by $BSLOADLIBS, which was computed by
|
||
|
|
ExtUtils::Liblist::ext(). If this array still is empty, we do nothing,
|
||
|
|
else we write a .bs file with an C<@DynaLoader::dl_resolve_using>
|
||
|
|
array.
|
||
|
|
|
||
|
|
The C<*_BS> file can put some code into the generated C<*.bs> file by
|
||
|
|
placing it in C<$bscode>. This is a handy 'escape' mechanism that may
|
||
|
|
prove useful in complex situations.
|
||
|
|
|
||
|
|
If @DynaLoader::dl_resolve_using contains C<-L*> or C<-l*> entries then
|
||
|
|
Mkbootstrap will automatically add a dl_findfile() call to the
|
||
|
|
generated C<*.bs> file.
|
||
|
|
|
||
|
|
=cut
|