--- ./Modules/_ctypes/libffi/configure.orig	2013-05-15 20:32:57.000000000 +0400
+++ ./Modules/_ctypes/libffi/configure	2013-05-18 10:56:03.000000000 +0400
@@ -6889,7 +6889,7 @@
   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