--- Modules/_ctypes/libffi/configure.orig	2008-05-24 00:06:50.000000000 +0900
+++ Modules/_ctypes/libffi/configure	2008-10-09 20:24:02.000000000 +0900
@@ -4725,7 +4725,7 @@
   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*|powerpc-*-freebsd*| \
 s390*-*linux*|sparc*-*linux*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext