$NetBSD: patch-af,v 1.1 2001/02/10 00:07:42 hubertf Exp $

--- ../include/os.h.orig	Fri Feb  9 01:18:26 2001
+++ ../include/os.h
@@ -58,11 +58,11 @@
 # define _PATH_DEVNULL		"/dev/null"
 #endif
 
-#ifndef _AIX
+#if !defined(_AIX) && !defined(__NetBSD__)
 # ifndef _PATH_MAILDIR
 #  define _PATH_MAILDIR		"/var/spool/mail"
 # endif
-#endif	/* _AIX */
+#endif	/* _AIX || __NetBSD__ */
 
 /* Apparently VI has become the standard editor for UNIX. */
 #if !defined(_PATH_VI) && !defined(__MSW__)