--- Modules/_ctypes/libffi/configure.orig	2010-03-20 02:59:20.000000000 +0800
+++ Modules/_ctypes/libffi/configure	2010-06-04 10:04:38.000000000 +0800
@@ -6289,7 +6289,7 @@
   rm -rf conftest*
   ;;
 
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+amd64-*-freebsd*|x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
 s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
