From owner-freebsd-sparc64@freebsd.org  Tue Apr 12 05:58:04 2016
Return-Path: <owner-freebsd-sparc64@freebsd.org>
Delivered-To: freebsd-sparc64@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3DB74B0D0A0
 for <freebsd-sparc64@mailman.ysv.freebsd.org>;
 Tue, 12 Apr 2016 05:58:04 +0000 (UTC)
 (envelope-from j@uriah.heep.sax.de)
Received: from uriah.heep.sax.de (uriah.heep.sax.de [IPv6:2a01:170:1047::9])
 by mx1.freebsd.org (Postfix) with ESMTP id 036881AAC;
 Tue, 12 Apr 2016 05:58:04 +0000 (UTC)
 (envelope-from j@uriah.heep.sax.de)
Received: by uriah.heep.sax.de (Postfix, from userid 107)
 id C9459CD1; Tue, 12 Apr 2016 07:58:01 +0200 (CEST)
Date: Tue, 12 Apr 2016 07:58:01 +0200
From: Joerg Wunsch <j@uriah.heep.sax.de>
To: freebsd-sparc64@freebsd.org
Cc: Shigeharu TAKENO <shige@iee.niit.ac.jp>, gabor@FreeBSD.org,
 Marius Strobl <marius@freebsd.org>
Subject: Re: /usr/bin/sort may be incorrect
Message-ID: <20160412055801.GV10729@uriah.heep.sax.de>
Reply-To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
References: <201603250229.u2P2TVLp003567@pc98tak.iee.niit.ac.jp>
 <201603310446.u2V4kLGM003303@pc98tak.iee.niit.ac.jp>
 <20160331072303.GP53011@uriah.heep.sax.de>
 <201603311122.u2VBMPam007017@pc98tak.iee.niit.ac.jp>
 <20160411215734.GA2101@alchemy.franken.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20160411215734.GA2101@alchemy.franken.de>
X-Phone: +49-351-2012 669
X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F  93 21 E0 7D F9 12 D6 4E
X-GPG-Fingerprint: 5E84 F980 C3CA FD4B B584  1070 F48C A81B 69A8 5873
User-Agent: Mutt/1.5.23 (2014-03-12)
X-BeenThere: freebsd-sparc64@freebsd.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: Porting FreeBSD to the Sparc <freebsd-sparc64.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-sparc64>, 
 <mailto:freebsd-sparc64-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-sparc64/>
List-Post: <mailto:freebsd-sparc64@freebsd.org>
List-Help: <mailto:freebsd-sparc64-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-sparc64>, 
 <mailto:freebsd-sparc64-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 12 Apr 2016 05:58:04 -0000

As Marius Strobl wrote:

> AFAICT is sort(1) relying on undefined behavior.

That matches my observation: on FreeBSD 9 (which is still installed on
my sparc64 box), I could successfully build zsh without problems.
Since the major difference from there to current FreeBSD/sparc64 is
the change of the compiler (GCC vs. Clang), this is also a strong
indication of undefined behaviour effects (I think).

Alas, my attempt to install FreeBSD 10.2 on a second disk on that
machine ended up with a kernel that stalled at mounting the root FS,
that's why I didn't investigate further by that time.
-- 
cheers, Joerg               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)