--- a/Makefile	Wed Jul 05 18:22:17 2017 +0200
+++ b/Makefile	Tue Sep 18 11:29:16 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -23,6 +23,16 @@
 # questions.
 #
 
+# If NEWBUILD is defined, use the new build-infra Makefiles and configure.
+#     See NewMakefile.gmk for more information.
+
+ifeq ($(NEWBUILD),true)
+
+  # The new top level Makefile
+  include NewMakefile.gmk
+
+else # Original Makefile logic
+
 BUILD_PARENT_DIRECTORY=.
 
 # Basename of any originally supplied ALT_OUTPUTDIR directory
@@ -557,3 +567,5 @@
 # Force target
 FRC:
 
+endif # Original Makefile logic
+