--- a/common/autoconf/hotspot-spec.gmk.in	Thu Nov 05 15:14:39 2015 +0100
+++ b/common/autoconf/hotspot-spec.gmk.in	Thu Nov 05 17:32:57 2015 +0100
@@ -33,6 +33,7 @@
 # Additional legacy variables defined for Hotspot
 
 @SET_OPENJDK@
+@HOTSPOT_SET_WARNINGS_AS_ERRORS@
 
 # Legacy defines controlled by the SUPPORT_HEADLESS and SUPPORT_HEADFUL options.
 @BUILD_HEADLESS@