--- a/src/cpu/sparc/vm/vmStructs_sparc.hpp	Fri Dec 10 15:46:59 2010 -0800
+++ b/src/cpu/sparc/vm/vmStructs_sparc.hpp	Fri Dec 10 17:59:46 2010 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2010, 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
@@ -22,6 +22,9 @@
  *
  */
 
+#ifndef CPU_SPARC_VM_VMSTRUCTS_SPARC_HPP
+#define CPU_SPARC_VM_VMSTRUCTS_SPARC_HPP
+
 // These are the CPU-specific fields, types and integer
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
@@ -97,3 +100,5 @@
   /* NOTE that we do not use the last_entry() macro here; it is used        */
   /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */
   /* be present there)                                                      */
+
+#endif // CPU_SPARC_VM_VMSTRUCTS_SPARC_HPP