--- a/hotspot/make/linux/makefiles/vm.make	Fri Jun 06 14:46:42 2014 +0200
+++ b/hotspot/make/linux/makefiles/vm.make	Mon Jun 09 11:03:09 2014 +0200
@@ -290,6 +290,7 @@
 $(PRECOMPILED_HEADER):
 	$(QUIETLY) echo Generating precompiled header $@
 	$(QUIETLY) mkdir -p $(PRECOMPILED_HEADER_DIR)
+	$(QUIETLY) rm -f $@
 	$(QUIETLY) $(COMPILE.CXX) $(DEPFLAGS) -x c++-header $(PRECOMPILED_HEADER_SRC) -o $@ $(COMPILE_DONE)
 
 # making the library: