--- mozilla-release.orig/js/src/Makefile.in	2013-12-05 17:07:35.000000000 +0100
+++ mozilla-release/js/src/Makefile.in	2014-01-02 14:53:44.000000000 +0100
@@ -103,7 +103,7 @@ ifdef JS_HAS_CTYPES
 VPATH += $(srcdir)/ctypes
 
 ifdef MOZ_NATIVE_FFI
-LOCAL_INCLUDES = $(MOZ_FFI_CFLAGS)
+LOCAL_INCLUDES =
 else
 LOCAL_INCLUDES = -Ictypes/libffi/include
 endif