--- old/src/share/vm/memory/permGen.hpp	2010-10-28 13:57:40.000000000 +0200
+++ new/src/share/vm/memory/permGen.hpp	2010-10-28 13:57:40.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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 +22,15 @@
  *
  */
 
+#ifndef SHARE_VM_MEMORY_PERMGEN_HPP
+#define SHARE_VM_MEMORY_PERMGEN_HPP
+
+#include "gc_interface/gcCause.hpp"
+#include "memory/generation.hpp"
+#include "memory/iterator.hpp"
+#include "runtime/handles.hpp"
+#include "runtime/virtualspace.hpp"
+
 // All heaps contains a "permanent generation," containing permanent
 // (reflective) objects.  This is like a regular generation in some ways,
 // but unlike one in others, and so is split apart.
@@ -73,3 +82,5 @@
     g->update_counters();
   }
 };
+
+#endif // SHARE_VM_MEMORY_PERMGEN_HPP