--- old/src/share/vm/gc_implementation/shared/markSweep.hpp	2010-10-28 13:56:14.000000000 +0200
+++ new/src/share/vm/gc_implementation/shared/markSweep.hpp	2010-10-28 13:56:14.000000000 +0200
@@ -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 +22,17 @@
  *
  */
 
+#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_HPP
+#define SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_HPP
+
+#include "gc_interface/collectedHeap.hpp"
+#include "memory/universe.hpp"
+#include "oops/markOop.hpp"
+#include "oops/oop.hpp"
+#include "runtime/timer.hpp"
+#include "utilities/growableArray.hpp"
+#include "utilities/taskqueue.hpp"
+
 class ReferenceProcessor;
 class DataLayout;
 
@@ -249,3 +260,5 @@
     _obj->set_mark(_mark);
   }
 };
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_MARKSWEEP_HPP