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ExtUtils/MM_Win32.pm  view on Meta::CPAN

Changes how to run the linker.

The rest is duplicate code from MM_Unix.  Should move the linker code
to its own method.

=cut

sub static_lib {
    my($self) = @_;
    return '' unless $self->has_link_code;

    my(@m);
    push(@m, <<'END');
$(INST_STATIC): $(OBJECT) $(MYEXTLIB) $(INST_ARCHAUTODIR)$(DIRFILESEP).exists
	$(RM_RF) $@
END

    # If this extension has its own library (eg SDBM_File)
    # then copy that to $(INST_STATIC) and add $(OBJECT) into it.
    push @m, <<'MAKE_FRAG' if $self->{MYEXTLIB};
	$(CP) $(MYEXTLIB) $@
MAKE_FRAG

    push @m,
q{	$(AR) }.($BORLAND ? '$@ $(OBJECT:^"+")'
			  : ($GCC ? '-ru $@ $(OBJECT)'
			          : '-out:$@ $(OBJECT)')).q{
	$(CHMOD) $(PERM_RWX) $@
	$(NOECHO) $(ECHO) "$(EXTRALIBS)" > $(INST_ARCHAUTODIR)\extralibs.ld
};

    # Old mechanism - still available:
    push @m, <<'MAKE_FRAG' if $self->{PERL_SRC} && $self->{EXTRALIBS};
	$(NOECHO) $(ECHO) "$(EXTRALIBS)" >> $(PERL_SRC)\ext.libs
MAKE_FRAG

    push @m, "\n", $self->dir_target('$(INST_ARCHAUTODIR)');
    join('', @m);
}


=item dynamic_lib (o)

Complicated stuff for Win32 that I don't understand. :(

=cut

sub dynamic_lib {
    my($self, %attribs) = @_;
    return '' unless $self->needs_linking(); #might be because of a subdir

    return '' unless $self->has_link_code;

    my($otherldflags) = $attribs{OTHERLDFLAGS} || ($BORLAND ? 'c0d32.obj': '');
    my($inst_dynamic_dep) = $attribs{INST_DYNAMIC_DEP} || "";
    my($ldfrom) = '$(LDFROM)';
    my(@m);

# one thing for GCC/Mingw32:
# we try to overcome non-relocateable-DLL problems by generating
#    a (hopefully unique) image-base from the dll's name
# -- BKS, 10-19-1999
    if ($GCC) { 
	my $dllname = $self->{BASEEXT} . "." . $self->{DLEXT};
	$dllname =~ /(....)(.{0,4})/;
	my $baseaddr = unpack("n", $1 ^ $2);
	$otherldflags .= sprintf("-Wl,--image-base,0x%x0000 ", $baseaddr);
    }

    push(@m,'
# This section creates the dynamically loadable $(INST_DYNAMIC)
# from $(OBJECT) and possibly $(MYEXTLIB).
OTHERLDFLAGS = '.$otherldflags.'
INST_DYNAMIC_DEP = '.$inst_dynamic_dep.'

$(INST_DYNAMIC): $(OBJECT) $(MYEXTLIB) $(BOOTSTRAP) $(INST_ARCHAUTODIR)$(DIRFILESEP).exists $(EXPORT_LIST) $(PERL_ARCHIVE) $(INST_DYNAMIC_DEP)
');
    if ($GCC) {
      push(@m,  
       q{	dlltool --def $(EXPORT_LIST) --output-exp dll.exp
	$(LD) -o $@ -Wl,--base-file -Wl,dll.base $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) $(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) dll.exp
	dlltool --def $(EXPORT_LIST) --base-file dll.base --output-exp dll.exp
	$(LD) -o $@ $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) $(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) dll.exp });
    } elsif ($BORLAND) {
      push(@m,
       q{	$(LD) $(LDDLFLAGS) $(OTHERLDFLAGS) }.$ldfrom.q{,$@,,}
       .($DMAKE ? q{$(PERL_ARCHIVE:s,/,\,) $(LDLOADLIBS:s,/,\,) }
		 .q{$(MYEXTLIB:s,/,\,),$(EXPORT_LIST:s,/,\,)}
		: q{$(subst /,\,$(PERL_ARCHIVE)) $(subst /,\,$(LDLOADLIBS)) }
		 .q{$(subst /,\,$(MYEXTLIB)),$(subst /,\,$(EXPORT_LIST))})
       .q{,$(RESFILES)});
    } else {	# VC
      push(@m,
       q{	$(LD) -out:$@ $(LDDLFLAGS) }.$ldfrom.q{ $(OTHERLDFLAGS) }
      .q{$(MYEXTLIB) $(PERL_ARCHIVE) $(LDLOADLIBS) -def:$(EXPORT_LIST)});
    }
    push @m, '
	$(CHMOD) $(PERM_RWX) $@
';

    push @m, $self->dir_target('$(INST_ARCHAUTODIR)');
    join('',@m);
}

=item clean

Clean out some extra dll.{base,exp} files which might be generated by
gcc.  Otherwise, take out all *.pdb files.

=cut

sub clean
{
    my ($self) = shift;
    my $s = $self->SUPER::clean(@_);
    my $clean = $GCC ? 'dll.base dll.exp' : '*.pdb';
    $s .= <<END;
clean ::
	-\$(RM_F) $clean