File: Makefile.linux

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sdlperl 1.20.3-1
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#!/usr/bin/env perl 

use strict;
use ExtUtils::MakeMaker;
use Getopt::Long;
use Config;

#
# Configure SDL proper
#

use vars qw/ $sdl_cflags $sdl_libs @dirs $inc_flags %ext @defs /;

#
# Configuration detection of Linux / Unix
#

$sdl_cflags = `sdl-config --cflags`;
chomp($sdl_cflags);
$sdl_libs = "-L/usr/X11R6/lib " . `sdl-config --libs`;
$sdl_libs =~ s/-Wl,-rpath,\S*lib//; # suppress the insanity

#
# Search paths
#

@dirs=(
	'/usr/local/include/SDL', 
	'/usr/local/include',
	'/usr/local/include/smpeg',
	'/usr/include/SDL',
	'/usr/include',
	'/usr/include/smpeg',
	'/usr/local/include/GL',
	'/usr/local/include/gl',
	'/usr/include/GL', 
	'/usr/include/gl', 
);

# Tels: debug off for normal builds:
# $inc_flags = "-ggdb " . $ENV{DEBUG};
$inc_flags = $ENV{DEBUG};

#
# Registed extensions
#

%ext = ( 
	SDL_image => { inc => 'HAVE_SDL_IMAGE', test => 'SDL_image.h' },
	SDL_mixer => { inc => 'HAVE_SDL_MIXER', test => 'SDL_mixer.h' },
	SDL_net => { inc => 'HAVE_SDL_NET', test => 'SDL_net.h' },
	SDL_ttf => { inc => 'HAVE_SDL_TTF', test => 'SDL_ttf.h' },
	SDL_gfx => { inc => 'HAVE_SDL_GFX', test => 'SDL_gfxPrimitives.h' },
	SDL_console => { inc => 'HAVE_SDL_CONSOLE', test => 'CON_console.h' },
	png => { inc => 'HAVE_PNG', test => 'png.h' },
	jpeg => { inc => 'HAVE_JPEG', test => 'jpeglib.h' },
	GL => { inc => 'HAVE_GL', test => 'gl.h' },
	GLU => { inc => 'HAVE_GLU', test => 'glu.h' },
	smpeg => { inc => 'HAVE_SMPEG', test => 'smpeg.h' },
);

#
# Locate optional packages
#

my ($e,$d);
for $e ( keys %ext ) {
	for $d (@dirs) {
		$ext{$e}{exists} ||= -e "$d/$ext{$e}{test}" 
	}
}

my $usage;
for $e ( keys %ext ) {
	$usage .= "\n\t-$e disables $e support";
}

for $e ( @ARGV ) {
	my $o;
	($o = $e) =~ s/^-*//g;
	if (exists $ext{$o}) {
		print "Disabling $o\n";
		$ext{$o}{exists} = 0;
	}
}
	
sub found_mod {
	printf "%-24s%s\n", "Enabled $_[0]",  ( $_[1] ? "yes" : "no" );
}

for $e ( sort keys %ext ) {
	found_mod ($e,$ext{$e}{exists});
}

#
# Get GLU version
#

if  ( $ext{GLU}{exists} ) {
	print "Detecting GLU Version\n";
	system ("gcc -o detect detect.c -lGLU -lGL $sdl_libs");
	my $version = `./detect` * 10;
	push @defs, "-DHAVE_GLU_VERSION=$version";
	system ("rm detect");
}

#
# Test For thread support
#

if ( $Config{usethreads} ) {
	push @defs, "-DUSE_THREADS";
}

#
# Specify Makefile options
#

my %options = (
    'NAME'	=> 'SDL_perl',
    'VERSION_FROM' => 'lib/SDL.pm', 
    'LIBS'	=> [ join( " ",	"$sdl_libs", 
			map { $ext{$_}{exists} ? "-l$_" : '' } (sort keys %ext),
			)
		],  
    'DEFINE'	=> join ( " ", @defs, map { $ext{$_}{exists} ? "-D$ext{$_}{inc}" : '' } sort keys %ext),
    'INC'	=> "$inc_flags $sdl_cflags " . join(" ", map { "-I$_" } @dirs),
    'OBJECT'	=> (	
			 ($ext{SDL_image}{exists} ? 'SFont.o ' : "") .
			 'SDL_perl.o ' .
			 ($ext{GL}{exists} ? 'OpenGL.o ' : "") 
		),
);
    
#
# Write Makefile 
#

WriteMakefile(%options );