--- a/cc/cc/cc.c
+++ b/cc/cc/cc.c
@@ -206,7 +206,7 @@
 #define PCCLIBDIR	NULL
 #endif
 #ifndef DEFLIBDIRS	/* default library search paths */
-#ifdef MULTIARCH_PATH
+#ifndef MULTIARCH_PATH
 #define DEFLIBDIRS	{ "/usr/lib/", 0 }
 #else
 #define DEFLIBDIRS	{ "/usr/lib/", "/usr/lib/" MULTIARCH_PATH "/", 0 }