--- old/src/cpu/zero/vm/interpreterGenerator_zero.hpp	2010-11-10 12:59:21.000000000 +0100
+++ new/src/cpu/zero/vm/interpreterGenerator_zero.hpp	2010-11-10 12:59:20.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -23,6 +23,9 @@
  *
  */
 
+#ifndef CPU_ZERO_VM_INTERPRETERGENERATOR_ZERO_HPP
+#define CPU_ZERO_VM_INTERPRETERGENERATOR_ZERO_HPP
+
   // Generation of Interpreter
   //
   friend class AbstractInterpreterGenerator;
@@ -35,3 +38,5 @@
   address generate_empty_entry();
   address generate_accessor_entry();
   address generate_method_handle_entry();
+
+#endif // CPU_ZERO_VM_INTERPRETERGENERATOR_ZERO_HPP