--- /home/gerald/ports/ports-mgmt/portlint/src/portlint.pl	2017-07-26 06:44:39.947830000 +0000
+++ /home/gerald/bin/portlint	2017-07-29 08:31:37.589579000 +0000
@@ -2175,7 +2175,7 @@
 	#
 	# whole file: USE_GCC checks
 	#
-	if ($whole =~ /^USE_GCC[?:]?=\s*(.*)$/m) {
+	if ($whole =~ /^USE_GCC[?:]?=\s*([^\s#]*).*$/m) {
 		my $lineno = &linenumber($`);
 		my $gcc_val = $1;
 		if ($gcc_val eq 'any' || $gcc_val eq 'yes') {