$cversion=`$cc -v 2>&1`;
$cversion=`$cc -V 2>&1` if $cversion =~ "usage";
-$cversion=`cc -V |head -1` if $cversion =~ "Error";
+$cversion=`$cc -V |head -1` if $cversion =~ "Error";
$cversion=`$cc --version` if $cversion eq "";
$cversion =~ s/Reading specs.*\n//;
$cversion =~ s/usage.*\n//;