diff -r e33f46fc48ed -r f95d63e2154a src/os/solaris/vm/osThread_solaris.hpp
--- a/src/os/solaris/vm/osThread_solaris.hpp	Tue Nov 23 15:01:43 2010 -0500
+++ b/src/os/solaris/vm/osThread_solaris.hpp	Tue Nov 23 13:22:55 2010 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2006, 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 +22,9 @@
  *
  */
 
+#ifndef OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
+#define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
+
 // This is embedded via include into the class OSThread
 
  private:
@@ -149,3 +152,5 @@
 
   void pd_initialize();
   void pd_destroy();
+
+#endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP