--- old/src/cpu/zero/vm/vmreg_zero.inline.hpp	2010-11-16 18:04:46.000000000 +0100
+++ new/src/cpu/zero/vm/vmreg_zero.inline.hpp	2010-11-16 18:04:45.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2006, 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_VMREG_ZERO_INLINE_HPP
+#define CPU_ZERO_VM_VMREG_ZERO_INLINE_HPP
+
 inline VMReg RegisterImpl::as_VMReg() {
   return VMRegImpl::as_VMReg(encoding());
 }
@@ -30,3 +33,5 @@
 inline VMReg FloatRegisterImpl::as_VMReg() {
   return VMRegImpl::as_VMReg(encoding() + ConcreteRegisterImpl::max_gpr);
 }
+
+#endif // CPU_ZERO_VM_VMREG_ZERO_INLINE_HPP