Update configure script.
diff --git a/libffi/configure b/libffi/configure
index 2c6ece1..9cd7de7 100755
--- a/libffi/configure
+++ b/libffi/configure
@@ -20372,6 +20372,10 @@ case "$host" in
TARGET=ARM; TARGETDIR=arm
;;
+ amd64-*-freebsd*)
+ TARGET=X86_64; TARGETDIR=x86
+ ;;
+
cris-*-*)
TARGET=LIBFFI_CRIS; TARGETDIR=cris
;;