--- old/src/os_cpu/linux_zero/vm/threadLS_linux_zero.hpp	2010-11-16 18:06:29.000000000 +0100
+++ new/src/os_cpu/linux_zero/vm/threadLS_linux_zero.hpp	2010-11-16 18:06:29.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 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
@@ -22,9 +22,14 @@
  *
  */
 
+#ifndef OS_CPU_LINUX_ZERO_VM_THREADLS_LINUX_ZERO_HPP
+#define OS_CPU_LINUX_ZERO_VM_THREADLS_LINUX_ZERO_HPP
+
 // Processor dependent parts of ThreadLocalStorage
 
  public:
   static Thread* thread() {
     return (Thread*) os::thread_local_storage_at(thread_index());
   }
+
+#endif // OS_CPU_LINUX_ZERO_VM_THREADLS_LINUX_ZERO_HPP