--- a/hotspot/src/os/windows/vm/osThread_windows.hpp	Tue Nov 23 15:01:43 2010 -0500
+++ b/hotspot/src/os/windows/vm/osThread_windows.hpp	Tue Nov 23 13:22:55 2010 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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 OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
+#define OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
+
 typedef void* HANDLE;
 
  private:
@@ -64,3 +67,5 @@
  private:
   void pd_initialize();
   void pd_destroy();
+
+#endif // OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP