--- old/src/os/windows/vm/jvm_windows.h	2010-10-28 13:50:04.000000000 +0200
+++ new/src/os/windows/vm/jvm_windows.h	2010-10-28 13:50:04.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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_JVM_WINDOWS_H
+#define OS_WINDOWS_VM_JVM_WINDOWS_H
+
 #ifndef _JAVASOFT_JVM_MD_H_
 #define _JAVASOFT_JVM_MD_H_
 
@@ -106,3 +109,5 @@
 #define SHUTDOWN2_SIGNAL SIGTERM
 
 #endif /* !_JAVASOFT_JVM_MD_H_ */
+
+#endif // OS_WINDOWS_VM_JVM_WINDOWS_H