diff -r eaaa79b68cd5 -r 729f9700483a jdk/make/lib/Lib-java.prefs.gmk
--- a/jdk/make/lib/Lib-java.prefs.gmk	Tue Nov 18 15:25:16 2014 -0800
+++ b/jdk/make/lib/Lib-java.prefs.gmk	Wed Dec 03 14:22:58 2014 +0000
@@ -54,17 +54,11 @@
         -D "JDK_FNAME=prefs.dll" \
         -D "JDK_INTERNAL_NAME=prefs" \
         -D "JDK_FTYPE=0x2L", \
-    OBJECT_DIR := $(JDK_OUTPUTDIR)/objs/libprefs, \
+    OBJECT_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libprefs, \
     DEBUG_SYMBOLS := $(DEBUG_ALL_BINARIES)))
 
-$(BUILD_LIBPREFS): $(BUILD_LIBJAVA)
+$(BUILD_LIBPREFS): $(call FindLib, java.base, java)
 
-PREFS_LIBRARIES += $(BUILD_LIBPREFS)
+TARGETS += $(BUILD_LIBPREFS)
 
 ################################################################################
-
-java.prefs: $(PREFS_LIBRARIES)
-
-all: java.prefs
-
-.PHONY: all java.prefs