--- old/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.hpp	2010-11-16 18:11:54.000000000 +0100
+++ new/src/share/vm/gc_implementation/parNew/parGCAllocBuffer.hpp	2010-11-16 18:11:54.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 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 +22,13 @@
  *
  */
 
+#ifndef SHARE_VM_GC_IMPLEMENTATION_PARNEW_PARGCALLOCBUFFER_HPP
+#define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PARGCALLOCBUFFER_HPP
+
+#include "memory/allocation.hpp"
+#include "memory/threadLocalAllocBuffer.hpp"
+#include "utilities/globalDefinitions.hpp"
+
 // Forward decl.
 
 class PLABStats;
@@ -237,3 +244,5 @@
     return MemRegion(_top, _true_end);
   }
 };
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_PARNEW_PARGCALLOCBUFFER_HPP