--- old/src/share/vm/interpreter/bytecodeHistogram.hpp	2010-11-16 18:13:37.000000000 +0100
+++ new/src/share/vm/interpreter/bytecodeHistogram.hpp	2010-11-16 18:13:37.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2004, 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 +22,12 @@
  *
  */
 
+#ifndef SHARE_VM_INTERPRETER_BYTECODEHISTOGRAM_HPP
+#define SHARE_VM_INTERPRETER_BYTECODEHISTOGRAM_HPP
+
+#include "interpreter/bytecodes.hpp"
+#include "memory/allocation.hpp"
+
 // BytecodeCounter counts the number of bytecodes executed
 
 class BytecodeCounter: AllStatic {
@@ -90,3 +96,5 @@
   // Profile printing
   static void print(float cutoff = 0.01F)   PRODUCT_RETURN;   // cutoff in percent
 };
+
+#endif // SHARE_VM_INTERPRETER_BYTECODEHISTOGRAM_HPP