# vim:ts=4
#
# Copyright (c) 2002, 2003, 2004 CubeSoft Communications, Inc.
# <http://www.csoft.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

my $testCode = << 'EOF';
#include <alsa/asoundlib.h>
int main(int argc, char *argv[]) {
	int rv;
	snd_rawmidi_t *h = 0;
	rv = snd_rawmidi_open(&h, NULL, "foo", 0);
	return (0);
}
EOF
my @autoIncludeDirs = (
	'/usr/include',
	'/usr/local/include'
);

my @autoLibDirs = (
	'/usr/lib',
	'/usr/local/lib'
);

sub Test
{
	my ($ver, $pfx) = @_;

	MkDefine('ALSA_CFLAGS', '');
	MkDefine('ALSA_LIBS', '');

	MkIfNE($pfx, '');
		MkIfExists("$pfx/include/alsa");
			MkDefine('ALSA_CFLAGS', "-I$pfx/include");
		MkEndif;
		MkIfExists("$pfx/lib");
			MkDefine('ALSA_LIBS', "-L$pfx/lib -lasound");
		MkEndif;
	MkElse;
		foreach my $dir (@autoIncludeDirs) {
			MkIfExists("$dir/alsa");
				MkDefine('ALSA_CFLAGS', "\${ALSA_CFLAGS} -I$dir");
			MkEndif;
		}
		foreach my $dir (@autoLibDirs) {
			MkIfExists($dir);
				MkDefine('ALSA_LIBS', "\${ALSA_LIBS} -L$dir -lasound");
			MkEndif;
		}
	MkEndif;

	MkIfNE('${ALSA_LIBS}', '');
		MkPrint('yes');
		MkPrintN('checking whether ALSA works...');
		MkCompileC('HAVE_ALSA', '${ALSA_CFLAGS}', '${ALSA_LIBS}', $testCode);
		MkSaveIfTrue('${HAVE_ALSA}', 'ALSA_CFLAGS', 'ALSA_LIBS');
	MkElse;
		MkPrint('no');
	MkEndif;
	return (0);
}

sub Link
{
	my $lib = shift;

	if ($lib ne 'alsa') {
		return (0);
	}
	PmIfHDefined('HAVE_ALSA');
		PmLink('asound');
		if ($EmulEnv =~ /^cb-/) {
			PmIncludePath('$(#alsa.include)');
			PmLibPath('$(#alsa.lib)');
		}
	PmEndif;
	return (1);
}

sub Emul
{
	my ($os, $osrel, $machine) = @_;
	
	MkDefine('ALSA_CFLAGS', '-I/usr/local/include');
	MkDefine('ALSA_LIBS', '-lasound');
	MkDefine('HAVE_ALSA', 'yes');
	MkSave('HAVE_ALSA', 'ALSA_CFLAGS', 'ALSA_LIBS');
	return (1);
}

BEGIN
{
	$DESCR{'alsa'} = 'ALSA (http://www.alsa-project.org)';
	$TESTS{'alsa'} = \&Test;
	$EMUL{'alsa'} = \&Emul;
	$LINK{'alsa'} = \&Link;
	$DEPS{'alsa'} = 'cc';
}

;1