From owner-freebsd-current@FreeBSD.ORG  Wed Nov 13 18:52:46 2013
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id D93074D9
 for <freebsd-current@FreeBSD.org>; Wed, 13 Nov 2013 18:52:46 +0000 (UTC)
Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140])
 by mx1.freebsd.org (Postfix) with ESMTP id 1C45D2774
 for <freebsd-current@FreeBSD.org>; Wed, 13 Nov 2013 18:52:45 +0000 (UTC)
Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua
 [212.40.38.100])
 by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id UAA23974;
 Wed, 13 Nov 2013 20:52:37 +0200 (EET) (envelope-from avg@FreeBSD.org)
Received: from localhost ([127.0.0.1])
 by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD))
 id 1VgfYK-000KFi-UK; Wed, 13 Nov 2013 20:52:36 +0200
Message-ID: <5283CA3C.3080201@FreeBSD.org>
Date: Wed, 13 Nov 2013 20:51:40 +0200
From: Andriy Gapon <avg@FreeBSD.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:24.0) Gecko/20100101 Thunderbird/24.1.0
MIME-Version: 1.0
To: Ryan Stone <rysto32@gmail.com>
Subject: Re: libc++ vs. libstdc++ usage in the ports tree
References: <20131112163219.GA2834@troutmask.apl.washington.edu>
 <77CB2B92-216A-4C80-B033-7E582B5F0DFC@FreeBSD.org>
 <20131112165422.GA2939@troutmask.apl.washington.edu>
 <E0FE40D9-726C-4501-B31A-3622510C1C68@FreeBSD.org>
 <20131112175556.GA3319@troutmask.apl.washington.edu>
 <20131112201922.GA4330@troutmask.apl.washington.edu>
 <20131113173143.Horde.a-9M7JQ_vHo3tpDIMsGK6g1@webmail.df.eu>
 <CAFMmRNxk25AJ3TMuceSG=EmL3qSE9Xhk_wpL5pAD8YvZrA6gkg@mail.gmail.com>
In-Reply-To: <CAFMmRNxk25AJ3TMuceSG=EmL3qSE9Xhk_wpL5pAD8YvZrA6gkg@mail.gmail.com>
X-Enigmail-Version: 1.6
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Cc: FreeBSD Current <freebsd-current@FreeBSD.org>
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.16
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Nov 2013 18:52:46 -0000

on 13/11/2013 19:52 Ryan Stone said the following:
> In my experience libstdc++ does not have good ABI stability between versions

In my experience it does.
In either case compatibility between different versions of relatively modern
libstdc++ version is no doubt much better than between libstdc++ and libc++.

-- 
Andriy Gapon