--- old/src/share/vm/c1/c1_Compiler.hpp	2010-11-16 18:07:39.000000000 +0100
+++ new/src/share/vm/c1/c1_Compiler.hpp	2010-11-16 18:07:39.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2007, 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 +22,11 @@
  *
  */
 
+#ifndef SHARE_VM_C1_C1_COMPILER_HPP
+#define SHARE_VM_C1_C1_COMPILER_HPP
+
+#include "compiler/abstractCompiler.hpp"
+
 // There is one instance of the Compiler per CompilerThread.
 
 class Compiler: public AbstractCompiler {
@@ -61,3 +66,5 @@
   // Print compilation timers and statistics
   virtual void print_timers();
 };
+
+#endif // SHARE_VM_C1_C1_COMPILER_HPP