diff --git a/config.lib b/config.lib
--- a/config.lib
+++ b/config.lib
@@ -782,7 +782,7 @@ make_cflags_and_ldflags() {
 		CFLAGS="$CFLAGS -DWIN32_ENABLE_DIRECTMUSIC_SUPPORT"
 	fi
 
-	if [ "$with_libtimidity" != "0" ]; then
+	if [ -n "$libtimidity" ]; then
 		if [ "$enable_static" != "0" ]; then
 			LIBS="$LIBS $libtimidity"
 		else