--- old/src/share/vm/services/runtimeService.hpp	2010-11-16 18:21:23.000000000 +0100
+++ new/src/share/vm/services/runtimeService.hpp	2010-11-16 18:21:22.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2006, 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
@@ -22,6 +22,12 @@
  *
  */
 
+#ifndef SHARE_VM_SERVICES_RUNTIMESERVICE_HPP
+#define SHARE_VM_SERVICES_RUNTIMESERVICE_HPP
+
+#include "runtime/perfData.hpp"
+#include "runtime/timer.hpp"
+
 class RuntimeService : public AllStatic {
 private:
   static PerfCounter* _sync_time_ticks;        // Accumulated time spent getting to safepoints
@@ -57,3 +63,5 @@
   static void record_interrupted_during_count();
   static void record_thread_interrupt_signaled_count();
 };
+
+#endif // SHARE_VM_SERVICES_RUNTIMESERVICE_HPP