--- configure.orig	2009-12-31 13:41:44.000000000 -0500
+++ configure	2012-09-12 20:07:36.000000000 -0400
@@ -2689,7 +2689,7 @@
 hppa*-*-linux*) host_cpu=parisc host_os=linux ;;
 mipsel-*-linux*) host_cpu=mips host_os=linux ;;
 x86_64-*-openbsd*) host_os=bsd libdl_needed=no ;;
-x86_64-*-freebsd*) host_os=bsd libdl_needed=no ;;
+amd64-*-freebsd*) host_os=bsd host_cpu=x86_64 libdl_needed=no ;;
 arm*-*-linux*) host_cpu=arm host_os=linux ;;
 arm*-*-openbsd*) host_cpu=arm host_os=bsd libdl_needed=no ;;
 arm*-*-freebsd*) host_cpu=arm host_os=bsd libdl_needed=no ;;