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#!/usr/bin/env perl
#
# Build.pm
#
# Copyright (C) 2005 David J. Goehrig <dgoehrig@cpan.org>
#
# ------------------------------------------------------------------------------
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# ------------------------------------------------------------------------------
#
# Please feel free to send questions, suggestions or improvements to:
#
# David J. Goehrig
# dgoehrig@cpan.org
#
package My::Builder;
use strict;
use warnings;
use base 'Module::Build';
use Carp;
use File::Spec;
use Config;
use Alien::SDL::ConfigData;
our $config = {};
# Module::Build doesn't seem to have a way to use separate flags for separate
# XS files, so here's the override that makes separate files build correctly:
sub process_xs {
my ( $self, $file ) = @_;
my $properties = $self->{properties};
my $file_args = $self->notes('file_flags')->{$file};
return unless defined($file_args);
my @old_values = @$properties{ keys %$file_args };
@$properties{ keys %$file_args } = values %$file_args;
$self->SUPER::process_xs($file);
@$properties{ keys %$file_args } = @old_values;
}
# which headers are installed?
sub find_subsystems {
my ( $self, $subsystems, $libraries ) = @_;
my %found;
my %enabled;
while ( my ( $name, $subsystem ) = each %$subsystems ) {
my $param;
for my $library ( @{ $subsystem->{libraries} } ) {
my $lib = $libraries->{$library}
or Carp::confess "Unknown library '$library' for '$name'\n";
my $h =
ref( $lib->{header} ) eq 'ARRAY'
? $lib->{header}
: [ $lib->{header} ];
my $need_check = 0;
foreach (@$h) {
$need_check = 1 unless $found{$_};
}
if ( !$need_check || Alien::SDL->check_header(@$h) ) {
$found{$_} = 1 foreach (@$h);
$param->{libs}->{$library} = 1;
push @{ $param->{defines} }, "-D$libraries->{$library}{define}";
push @{ $param->{links} }, "-l$libraries->{$library}{lib}";
} else {
# I disabled that, so the libs are compiled but the HAVE_* defines are not set
# so we can e.g. 'use SDL::Pango;' (FROGGS)
# $param = undef;
print "###WARNING### Disabling subsystem '$name'\n";
last;
}
}
$enabled{$name} = $param if $param;
}
return \%enabled;
}
# create mapping table: { SDL::Any::Lib => [ list of libs ], SDL::Any::OtherLib => [ list of libs ] ... }
# to keep information what libs (.dll|.so) to load via Dynaloader for which module
sub translate_table {
my ( $self, $subsystems, $libraries ) = @_;
my %ret;
foreach my $m ( sort keys %$subsystems ) {
my $p = $subsystems->{$m}->{file}->{to};
$p =~ s|^lib/(.*)\.xs|$1|;
$p =~ s|/|::|g;
my @list =
map ( $libraries->{$_}->{lib}, @{ $subsystems->{$m}->{libraries} } );
$ret{$p} = \@list;
}
return \%ret;
}
# save this all in a format process_xs() can understand
sub set_file_flags {
my $self = shift;
my %file_flags;
my %build_systems = %{ $self->notes('build_systems') };
#TODO: Search for execinfo.h signal.h and turn this on.
# This should also be turned on only during CPAN tests
my $debug = ' -DNOSIGCATCH '; #default until headers found
if ( Alien::SDL->check_header(qw(execinfo.h signal.h))
&& $ENV{AUTOMATED_TESTING} )
{
$debug .= ' -g -rdynamic ' unless ( $^O =~ /(win|darwin|bsd)/i );
} else {
$debug .= ' -O2 ';
}
my $arch = ' ';
$arch = '-arch' . $ENV{SDL_ARCH} if $ENV{SDL_ARCH};
while ( my ( $subsystem, $param ) = each %build_systems ) {
my $sub_file = $self->notes('subsystems')->{$subsystem}{file}{to};
my $extra_compiler_flags = [
( split( ' ', $arch . $debug . $self->notes('sdl_cflags') ) ),
@{ $param->{defines} },
];
push(@{$extra_compiler_flags}, '-DUSE_THREADS') if defined $Config{usethreads};
push(@{$extra_compiler_flags}, '-fPIC') if $^O ne 'MSWin32';
$file_flags{$sub_file} = {
extra_compiler_flags => $extra_compiler_flags,
extra_linker_flags => [
( split( ' ', $self->notes('sdl_libs') ) ),
@{ $param->{links} },
],
};
}
$self->notes( 'file_flags' => \%file_flags );
}
# override the following functions in My::Builder::<platform> if necessary
sub ACTION_build {
my $self = shift;
printf(
"[Alien::SDL] Build option used:\n\t%s\n",
${ Alien::SDL::ConfigData->config('build_params') }{'title'} || 'n.a.'
);
$self->SUPER::ACTION_build;
$self->ACTION_bundle;
}
# both special to MacOS/Darwin, somebody should review whether it is still necessary
sub special_build_settings { }
sub build_bundle { }
# build_bundle() currently defined only for MacOS
sub ACTION_bundle {
my ($self) = @_;
$self->depends_on('build');
$self->build_bundle();
}
# inc/My/Darwin.pm will override Install method for MacOS
sub ACTION_install {
my ($self) = @_;
require ExtUtils::Install;
$self->depends_on('build');
ExtUtils::Install::install(
$self->install_map, 1, 0,
$self->{args}{uninst} || 0
);
}
sub ACTION_test {
my ($self) = @_;
$self->depends_on('build');
$self->SUPER::ACTION_test();
}
sub man3page_name {
my $self = shift ;
my $name = $self->SUPER::man3page_name( @_ ) ;
$name =~ s!^pods::!!;
return $name ;
}
1;
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