--- configure.orig	2006-03-02 03:59:55.000000000 +0900
+++ configure	2011-08-13 07:46:25.000000000 +0900
@@ -5669,6 +5669,7 @@
 COMPLIB_ARCH=CONFIG_GENERIC
 case "$target" in
 i386* | i486* | i686* ) COMPLIB_ARCH=CONFIG_X86;;
+amd64* )          COMPLIB_ARCH=CONFIG_X86_64;;
 ppc* )          COMPLIB_ARCH=CONFIG_PPC;;
 esac