--- old/src/share/vm/c1/c1_Optimizer.hpp	2010-10-28 13:51:57.000000000 +0200
+++ new/src/share/vm/c1/c1_Optimizer.hpp	2010-10-28 13:51:56.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2001, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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_C1_C1_OPTIMIZER_HPP
+#define SHARE_VM_C1_C1_OPTIMIZER_HPP
+
+#include "c1/c1_IR.hpp"
+#include "c1/c1_Instruction.hpp"
+#include "memory/allocation.hpp"
+
 class Optimizer VALUE_OBJ_CLASS_SPEC {
  private:
   IR* _ir;
@@ -35,3 +42,5 @@
   void eliminate_blocks();
   void eliminate_null_checks();
 };
+
+#endif // SHARE_VM_C1_C1_OPTIMIZER_HPP