--- old/src/cpu/zero/vm/jni_zero.h	2010-10-28 13:48:48.000000000 +0200
+++ new/src/cpu/zero/vm/jni_zero.h	2010-10-28 13:48:47.000000000 +0200
@@ -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.
  * Copyright 2009 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -24,6 +24,9 @@
  * questions.
  */
 
+#ifndef CPU_ZERO_VM_JNI_ZERO_H
+#define CPU_ZERO_VM_JNI_ZERO_H
+
 #define JNIEXPORT
 #define JNIIMPORT
 #define JNICALL
@@ -36,3 +39,5 @@
 #else
 typedef long long jlong;
 #endif
+
+#endif // CPU_ZERO_VM_JNI_ZERO_H