my $uname_M = `uname -m`;
my $uname_P = `uname -p`;

# TODO architectures:
# * athlon-4, athlon-xp, athlon-mp
# * k8, opteron, athlon64, athlon-fx
# * k8-sse3, opteron-sse3, athlon64-sse3
# * winchip-c6, winchip2

if ($uname_M eq "i586" || $uname_M eq "i686")
{
	# Pentium and PentiumPro
	$march = $uname_M;
}
if ( $uname_M eq "i586" && $features{"mmx"} )
{
	$march = "pentium-mmx";
}

if ( $uname_P =~ /Athlon/ )
{
	$march = "athlon";

	if ( $features{"abm"} && $features{"sse4a"} )
	{
		$march = "amdfam10";
	}
}