--- old/src/os/solaris/vm/hpi_solaris.hpp	2010-11-16 18:05:25.000000000 +0100
+++ new/src/os/solaris/vm/hpi_solaris.hpp	2010-11-16 18:05:25.000000000 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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 +22,9 @@
  *
  */
 
+#ifndef OS_SOLARIS_VM_HPI_SOLARIS_HPP
+#define OS_SOLARIS_VM_HPI_SOLARIS_HPP
+
 //
 // Parts of the HPI interface for which the HotSparc does not use the
 // HPI (because the interruptible IO mechanims used are different).
@@ -247,3 +250,5 @@
 // 1.3 98/10/21 18:17:14 hpi_win32.hpp
 // 1.6 99/06/28 11:01:36 hpi_win32.hpp
 //End
+
+#endif // OS_SOLARIS_VM_HPI_SOLARIS_HPP