$NetBSD: patch-math__2n.h,v 1.1 2013/09/20 23:07:44 joerg Exp $

--- math_2n.h.orig	2013-09-20 20:49:55.000000000 +0000
+++ math_2n.h
@@ -30,7 +30,7 @@
  * This code was written under funding by Ericsson Radio Systems.
  */
 
-#ifndef _MATH_2N_H
+#ifndef _MATH_2N_H_
 #define _MATH_2N_H_
 
 /*