$NetBSD: patch-ae,v 1.2 2006/05/29 19:44:24 joerg Exp $

--- Engine/linevent.c.orig	2005-12-06 14:58:54.000000000 -0800
+++ Engine/linevent.c
@@ -30,7 +30,7 @@
 #include "linevent.h"
 
 #ifdef PIPES
-# if defined(SGI) || defined(LINUX) || defined(NeXT) || defined(__MACH__)
+# if defined(SGI) || defined(LINUX) || defined(NeXT) || defined(__MACH__) || defined(__NetBSD__) || defined(__DragonFly__)
 #  define _popen popen
 #  define _pclose pclose
 # elif defined(__BEOS__) || defined(__MACH__)