From 9e4bbeb95f5c9d046b671070eb35b3aa6f3ec5e6 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bj=C3=B6rn=20Steinbrink?= <B.Steinbrink@gmx.de>
Date: Wed, 5 Dec 2007 16:11:24 +0100
Subject: [PATCH] git config: Don't rely on regexec() returning 1 on non-match
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Some systems don't return 1 from regexec() when the pattern does not
match (notably HP-UX which returns 20).

Bug identified by Dscho and H.Merijn Brand.

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Tested-by: H.Merijn Brand <h.m.brand@xs4all.nl>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-config.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/builtin-config.c b/builtin-config.c
index 4c9ded3b1a..6175dc3738 100644
--- a/builtin-config.c
+++ b/builtin-config.c
@@ -38,8 +38,7 @@ static int show_config(const char* key_, const char* value_)
 	if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 		return 0;
 	if (regexp != NULL &&
-			 (do_not_match ^
-			  regexec(regexp, (value_?value_:""), 0, NULL, 0)))
+	    (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 		return 0;
 
 	if (show_keys) {
-- 
2.11.4.GIT