--- configure.orig	2011-12-20 18:59:02.000000000 +0900
+++ configure	2012-01-09 12:13:26.000000000 +0900
@@ -5565,7 +5565,7 @@
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking which CPU support to include" >&5
 $as_echo_n "checking which CPU support to include... " >&6; }
     case ${target} in
-      i*86-*-*|x86_64-*-*)
+      i*86-*-*|x86_64-*-*|amd64-*-*)
         case ${ac_cv_sizeof_void_p} in
           4)
 
