--- a/config.lib	Tue May 27 00:50:55 2008 +0000
+++ b/config.lib	Tue Jun 17 10:32:49 2008 +0000
@@ -936,6 +936,10 @@
 		if [ $cc_version -ge 30 ]; then
 			CFLAGS="$CFLAGS -W -Wno-unused-parameter -Wformat=2"
 			CFLAGS="$CFLAGS -Wredundant-decls"
+			# Do not warn about unused variables when building without asserts
+			if [ $enable_assert -eq 0 ]; then
+				CFLAGS="$CFLAGS -Wno-unused-variable"
+			fi
 		fi
 
 		if [ $cc_version -ge 34 ]; then