# vim:ts=4
#
# Copyright (c) 2002-2010 Hypertriton, Inc. <http://hypertriton.com/>
# 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
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#    documentation and/or other materials provided with the distribution.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

sub Test
{
	TryCompile 'HAVE_FLOCK', << 'EOF';
#include <sys/file.h>

int
main(int argc, char *argv[])
{
	int fd = 0;
	flock(fd, LOCK_EX);
	flock(fd, LOCK_UN);
	return (0);
}
EOF
}

sub Emul
{
	my ($os, $osrel, $machine) = @_;

	if ($os eq 'linux' || $os eq 'darwin' || $os =~ /^(open|net|free)bsd$/) {
		MkDefine('HAVE_FLOCK', 'yes');
		MkSaveDefine('HAVE_FLOCK');
	} else {
		MkSaveUndef('HAVE_FLOCK');
	}
	return (1);
}

BEGIN
{
	$TESTS{'flock'} = \&Test;
	$DEPS{'flock'} = 'cc';
	$EMUL{'flock'} = \&Emul;
	$DESCR{'flock'} = 'the flock() function';
}

;1