package ExtUtils::CBuilder::Platform::os2;

use strict;
use ExtUtils::CBuilder::Platform::Unix;

use vars qw($VERSION @ISA);
$VERSION = '0.280209';
@ISA = qw(ExtUtils::CBuilder::Platform::Unix);

sub need_prelink { 1 }

sub prelink {
# Generate import libraries (XXXX currently near .DEF; should be near DLL!)
my $self = shift;
my %args = @_;

my @res = $self->SUPER::prelink(%args);
die "Unexpected number of DEF files" unless @res == 1;
die "Can't find DEF file in the output"
unless $res[0] =~ m,^(.*)\.def$,si;
my $libname = "$1$self->{config}{lib_ext}"; # Put .LIB file near .DEF file
$self->do_system('emximp', '-o', $libname, $res[0]) or die "emxexp: res=$?";
return (@res, $libname);
}

sub _do_link {
my $self = shift;
my ($how, %args) = @_;
if ($how eq 'lib_file'
and (defined $args{module_name} and length $args{module_name})) {

# DynaLoader::mod2fname() is a builtin func
my $lib = DynaLoader::mod2fname([split /::/, $args{module_name}]);

# Now know the basename, find directory parts via lib_file, or objects
my $objs = ( (ref $args{objects}) ? $args{objects} : [$args{objects}] );
my $near_obj = $self->lib_file(@$objs);
my $ref_file = ( defined $args{lib_file} ? $args{lib_file} : $near_obj );
my $lib_dir = ($ref_file =~ m,(.*)[/\\],s ? "$1/" : '' );
my $exp_dir = ($near_obj =~ m,(.*)[/\\],s ? "$1/" : '' );

$args{dl_file} = $1 if $near_obj =~ m,(.*)\.,s; # put ExportList near OBJ
$args{lib_file} = "$lib_dir$lib.$self->{config}{dlext}"; # DLL file

# XXX _do_link does not have place to put libraries?
push @$objs, $self->perl_inc() . "/libperl$self->{config}{lib_ext}";
$args{objects} = $objs;
}
# Some 'env' do exec(), thus return too early when run from ksh;
# To avoid 'env', remove (useless) shrpenv
local $self->{config}{shrpenv} = '';
return $self->SUPER::_do_link($how, %args);
}

sub extra_link_args_after_prelink {
# Add .DEF file to the link line
my ($self, %args) = @_;

my @DEF = grep /\.def$/i, @{$args{prelink_res}};
die "More than one .def files created by 'prelink' stage" if @DEF > 1;
# XXXX No "$how" argument here, so how to test for dynamic link?
die "No .def file created by 'prelink' stage"
unless @DEF or not @{$args{prelink_res}};

my @after_libs = ($OS2::is_aout ? ()
: $self->perl_inc() . "/libperl_override$self->{config}{lib_ext}");
# , "-L", "-lperl"
(@after_libs, @DEF);
}

sub link_executable {
# ldflags is not expecting .exe extension given on command line; remove -Zexe
my $self = shift;
local $self->{config}{ldflags} = $self->{config}{ldflags};
$self->{config}{ldflags} =~ s/(?<!\S)-Zexe(?!\S)//;
return $self->SUPER::link_executable(@_);
}


1;