From eed2504ac76b3c22eec15206f474aa22671c5d50 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Sun, 3 Apr 2011 09:53:50 +0000
Subject: Make uname have its return value checked for -1 (POSIX style), not
 non-zero.  From a PR by Yuri Pankov, ok schwarze@.

---
 mdoc_validate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mdoc_validate.c b/mdoc_validate.c
index 269bd4dd..70786444 100644
--- a/mdoc_validate.c
+++ b/mdoc_validate.c
@@ -1,4 +1,4 @@
-/*	$Id: mdoc_validate.c,v 1.165 2011/03/22 14:33:05 kristaps Exp $ */
+/*	$Id: mdoc_validate.c,v 1.166 2011/04/03 09:53:50 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -2194,7 +2194,7 @@ post_os(POST_ARGS)
 			return(0);
 		}
 #else /*!OSNAME */
-		if (uname(&utsname)) {
+		if (-1 == uname(&utsname)) {
 			mdoc_nmsg(mdoc, n, MANDOCERR_UNAME);
                         mdoc->meta.os = mandoc_strdup("UNKNOWN");
                         return(post_prol(mdoc));
-- 
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