--- gold/config.in.orig	Fri Jul 18 14:44:56 2014
+++ gold/config.in	Fri Jul 18 14:57:50 2014
@@ -187,6 +187,12 @@
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
+/* Define to 1 if you have the <unordered_map> header file. */
+#undef HAVE_UNORDERED_MAP
+
+/* Define to 1 if you have the <unordered_set> header file. */
+#undef HAVE_UNORDERED_SET
+
 /* Define to 1 if you have the <zlib.h> header file. */
 #undef HAVE_ZLIB_H
 
