--- old/src/cpu/x86/vm/frame_x86.hpp	2010-10-28 13:47:39.000000000 +0200
+++ new/src/cpu/x86/vm/frame_x86.hpp	2010-10-28 13:47:39.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2007, 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 +22,12 @@
  *
  */
 
+#ifndef CPU_X86_VM_FRAME_X86_HPP
+#define CPU_X86_VM_FRAME_X86_HPP
+
+#include "runtime/synchronizer.hpp"
+#include "utilities/top.hpp"
+
 // A frame represents a physical stack frame (an activation).  Frames can be
 // C or Java frames, and the Java frames can be interpreted or compiled.
 // In contrast, vframes represent source-level activations, so that one physical frame
@@ -199,3 +205,5 @@
 #ifdef CC_INTERP
   inline interpreterState get_interpreterState() const;
 #endif // CC_INTERP
+
+#endif // CPU_X86_VM_FRAME_X86_HPP