--- a/hotspot/make/linux/makefiles/buildtree.make	Fri Sep 05 15:53:02 2014 -0700
+++ b/hotspot/make/linux/makefiles/buildtree.make	Thu Aug 28 11:59:04 2014 +0200
@@ -172,7 +172,7 @@
 # Run make in each subdirectory recursively.
 $(SUBMAKE_DIRS): $(SIMPLE_DIRS) FORCE
 	$(QUIETLY) [ -d $@ ] || { mkdir -p $@; }
-	$(QUIETLY) cd $@ && $(BUILDTREE) TARGET=$(@F)
+	+$(QUIETLY) cd $@ && $(BUILDTREE) TARGET=$(@F)
 	$(QUIETLY) touch $@
 
 $(SIMPLE_DIRS):
@@ -377,3 +377,5 @@
 FORCE:
 
 .PHONY:  all FORCE
+
+.NOTPARALLEL: