# vim:ts=4
#
# Copyright (c) 2002-2004 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
#    notice, this list of conditions and the following disclaimer in the
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# 
# 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
{
	my ($ver, $pfx) = @_;

	MkIfNE($pfx, '');
		MkDefine('MATH_C99_CFLAGS', "-I$pfx");
		MkDefine('MATH_C99_LIBS', "-L$pfx -lm");
	MkElse;
		MkDefine('MATH_C99_CFLAGS', '');
		MkDefine('MATH_C99_LIBS', '-lm');
	MkEndif;

	MkCompileC('HAVE_MATH_C99', '${CFLAGS} ${MATH_C99_CFLAGS}', '${MATH_C99_LIBS}', << 'EOF');
#include <math.h>

int
main(int argc, char *argv[])
{
	float f = 1.0;
	double d = 1.0;

	d = fabs(d);
	f = fabsf(f);
	return (0);
}
EOF
	MkSaveIfTrue('${HAVE_MATH_C99}', 'MATH_C99_CFLAGS', 'MATH_C99_LIBS');
	return (0);
}

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

	if ($os eq 'linux' || $os eq 'darwin' || $os =~ /^(open|net|free)bsd$/) {
		MkDefine('HAVE_MATH_C99', 'yes');
		MkDefine('MATH_C99_LIBS', '-lm');
		MkDefine('MATH_C99_CFLAGS', '');
		MkSaveDefine('HAVE_MATH_C99');
	} else {
		MkDefine('MATH_C99_LIBS', '');
		MkDefine('MATH_C99_CFLAGS', '');
		MkSaveUndef('HAVE_MATH_C99');
	}
	MkSave('MATH_C99_LIBS', 'MATH_C99_CFLAGS');
	return (1);
}

BEGIN
{
	$DESCR{'math_c99'} = 'the C math library (C99)';
	$TESTS{'math_c99'} = \&Test;
	$EMUL{'math_c99'} = \&Emul;
	$DEPS{'math_c99'} = 'cc';
}

;1