--- old/src/share/vm/runtime/mutexLocker.hpp	2010-11-16 18:19:51.000000000 +0100
+++ new/src/share/vm/runtime/mutexLocker.hpp	2010-11-16 18:19:51.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2009, 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 +22,21 @@
  *
  */
 
+#ifndef SHARE_VM_RUNTIME_MUTEXLOCKER_HPP
+#define SHARE_VM_RUNTIME_MUTEXLOCKER_HPP
+
+#include "memory/allocation.hpp"
+#include "runtime/mutex.hpp"
+#ifdef TARGET_OS_FAMILY_linux
+# include "os_linux.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_solaris
+# include "os_solaris.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_windows
+# include "os_windows.inline.hpp"
+#endif
+
 // Mutexes used in the VM.
 
 extern Mutex*   Patching_lock;                   // a lock used to guard code patching of compiled code
@@ -343,3 +358,5 @@
 };
 
 #endif
+
+#endif // SHARE_VM_RUNTIME_MUTEXLOCKER_HPP