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   1  package ExtUtils::CBuilder::Platform::os2;
   2  
   3  use strict;
   4  use ExtUtils::CBuilder::Platform::Unix;
   5  
   6  use vars qw($VERSION @ISA);
   7  $VERSION = '0.21';
   8  @ISA = qw(ExtUtils::CBuilder::Platform::Unix);
   9  
  10  sub need_prelink { 1 }
  11  
  12  sub prelink {
  13    # Generate import libraries (XXXX currently near .DEF; should be near DLL!)
  14    my $self = shift;
  15    my %args = @_;
  16  
  17    my @res = $self->SUPER::prelink(%args);
  18    die "Unexpected number of DEF files" unless @res == 1;
  19    die "Can't find DEF file in the output"
  20      unless $res[0] =~ m,^(.*)\.def$,si;
  21    my $libname = "$1$self->{config}{lib_ext}";    # Put .LIB file near .DEF file
  22    $self->do_system('emximp', '-o', $libname, $res[0]) or die "emxexp: res=$?";
  23    return (@res, $libname);
  24  }
  25  
  26  sub _do_link {
  27    my $self = shift;
  28    my ($how, %args) = @_;
  29    if ($how eq 'lib_file'
  30        and (defined $args{module_name} and length $args{module_name})) {
  31  
  32      # DynaLoader::mod2fname() is a builtin func
  33      my $lib = DynaLoader::mod2fname([split /::/, $args{module_name}]);
  34  
  35      # Now know the basename, find directory parts via lib_file, or objects
  36      my $objs = ( (ref $args{objects}) ? $args{objects} : [$args{objects}] );
  37      my $near_obj = $self->lib_file(@$objs);
  38      my $ref_file = ( defined $args{lib_file} ? $args{lib_file} : $near_obj );
  39      my $lib_dir = ($ref_file =~ m,(.*)[/\\],s ? "$1/" : '' );
  40      my $exp_dir = ($near_obj =~ m,(.*)[/\\],s ? "$1/" : '' );
  41  
  42      $args{dl_file} = $1 if $near_obj =~ m,(.*)\.,s; # put ExportList near OBJ
  43      $args{lib_file} = "$lib_dir$lib.$self->{config}{dlext}";    # DLL file
  44  
  45      # XXX _do_link does not have place to put libraries?
  46      push @$objs, $self->perl_inc() . "/libperl$self->{config}{lib_ext}";
  47      $args{objects} = $objs;
  48    }
  49    # Some 'env' do exec(), thus return too early when run from ksh;
  50    # To avoid 'env', remove (useless) shrpenv
  51    local $self->{config}{shrpenv} = '';
  52    return $self->SUPER::_do_link($how, %args);
  53  }
  54  
  55  sub extra_link_args_after_prelink {
  56    # Add .DEF file to the link line
  57    my ($self, %args) = @_;
  58  
  59    my @DEF = grep /\.def$/i, @{$args{prelink_res}};
  60    die "More than one .def files created by `prelink' stage" if @DEF > 1;
  61    # XXXX No "$how" argument here, so how to test for dynamic link?
  62    die "No .def file created by `prelink' stage"
  63      unless @DEF or not @{$args{prelink_res}};
  64  
  65    my @after_libs = ($OS2::is_aout ? ()
  66        : $self->perl_inc() . "/libperl_override$self->{config}{lib_ext}");
  67    # , "-L", "-lperl"
  68    (@after_libs, @DEF);
  69  }
  70  
  71  sub link_executable {
  72    # ldflags is not expecting .exe extension given on command line; remove -Zexe
  73    my $self = shift;
  74    local $self->{config}{ldflags} = $self->{config}{ldflags};
  75    $self->{config}{ldflags} =~ s/(?<!\S)-Zexe(?!\S)//;
  76    return $self->SUPER::link_executable(@_);
  77  }
  78  
  79  
  80  1;