auto import from //branches/cupcake/...@130745
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 7a3c682..e38a803 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -71,3 +71,14 @@
   # anyone trying to parse it as an integer will probably get "0".
   BUILD_NUMBER := eng.$(USER).$(shell date +%Y%m%d.%H%M%S)
 endif
+
+ifeq "true" "$(DISPLAY_BUILD_NUMBER)"
+  # if the build_id.mk has this defined, then BUILD_ID is updated with
+  # the BUILD_NUMBER as well.  For development branches, this will be 
+  # set, but release branches this will not be set.
+  BUILD_DISPLAY_ID := "$(BUILD_ID).$(BUILD_NUMBER)"
+else
+  BUILD_DISPLAY_ID := "$(BUILD_ID)"
+endif
+
+