--- config.sub.orig	2008-03-05 22:58:16.000000000 +0100
+++ config.sub	2012-05-01 20:43:22.460600001 +0200
@@ -197,6 +197,8 @@
 		basic_machine=a29k-none
 		os=-bsd
 		;;
+	amd64*)
+		;;
 	amdahl)
 		basic_machine=580-amdahl
 		os=-sysv