Bug 557852 - Fix libffi config.cache location. r=bsmedberg

js/src/configure.in

@@ -5289,8 +5289,6 @@ MAKEFILES="
   Makefile
   shell/Makefile
   lirasm/Makefile
-  ctypes/Makefile
-  ctypes/tests/Makefile
   jsapi-tests/Makefile
   tests/Makefile
   config/Makefile
@@ -5386,8 +5384,9 @@ if test "$JS_HAS_CTYPES"; then
 
   # Use a separate cache file for libffi, since it does things differently
   # from our configure.
+  mkdir -p $_objdir/ctypes/libffi
   old_cache_file=$cache_file
-  cache_file=ctypes/libffi/config.cache
+  cache_file=$_objdir/ctypes/libffi/config.cache
   old_config_files=$CONFIG_FILES
   unset CONFIG_FILES
   AC_OUTPUT_SUBDIRS(ctypes/libffi)