--- old/makefiles/lib/CoreLibraries.gmk	2013-11-04 18:15:53.000000000 -0800
+++ new/makefiles/lib/CoreLibraries.gmk	2013-11-04 18:15:52.000000000 -0800
@@ -115,7 +115,6 @@
 
 LIBJAVA_SRC_DIRS := $(JDK_TOPDIR)/src/$(OPENJDK_TARGET_OS_API_DIR)/native/java/lang \
     $(JDK_TOPDIR)/src/share/native/java/lang \
-    $(JDK_TOPDIR)/src/share/native/java/lang/ref \
     $(JDK_TOPDIR)/src/share/native/java/lang/reflect \
     $(JDK_TOPDIR)/src/share/native/java/io \
     $(JDK_TOPDIR)/src/$(OPENJDK_TARGET_OS_API_DIR)/native/java/io \