From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: What were the Emacs versions with dates limited to 1970 .. 2037 year range? Date: Mon, 13 Jun 2022 16:29:08 +0300 Message-ID: <83wndku1y3.fsf@gnu.org> References: <8735gaqm6i.fsf@localhost> <83wndmutg7.fsf@gnu.org> <87tu8qp5um.fsf@localhost> <83r13uurom.fsf@gnu.org> <83k09mueoc.fsf@gnu.org> <877d5le76w.fsf@yahoo.com> <83bkuxuw4z.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="7811"; mail-complaints-to="usenet@ciao.gmane.io" Cc: luangruo@yahoo.com, yantar92@gmail.com, emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jun 13 15:58:53 2022 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o0kaj-0001sq-HN for ged-emacs-devel@m.gmane-mx.org; Mon, 13 Jun 2022 15:58:53 +0200 Original-Received: from localhost ([::1]:41608 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o0kaY-0004xq-4o for ged-emacs-devel@m.gmane-mx.org; Mon, 13 Jun 2022 09:58:51 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60792) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o0k8A-0005DD-NX for emacs-devel@gnu.org; Mon, 13 Jun 2022 09:29:22 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:38758) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o0k8A-00053f-0E; Mon, 13 Jun 2022 09:29:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=boGuG5uvGnds0YqUptBc1oru3PjWsAXhBD1yyg4Z7A4=; b=OZpuvvkhocTK dvZiJjYPMmyMr7Hw6OztGCeKPfiLjOfrnTKI+Ep1y7KJJ9m5QgLCRKkiQjv2TGA3j4JbHhTnvvqa7 wkycNpgD4L/+btblYpCnKB44jIoWq7/EoMNulH7VM93Izk6wDRgVAzQBRAHM3MObM+ZdRNvhGrLAI +3w/1UZQ1fCGvagDNzHtjZguz2Wtc63ggVZou5AKRIcKXSRJPfewYW9NQXrYRVL8KmYu4bJJe8rdK TQCurPQWA0zzGQPjUyc/dnzxU7/CesZlhurXj9LRTMqJDsnYXZt5va6jOL+McyA96uc5g1SsQN3Hy EgTuCw+5Aoma1pKDzcM8lw==; Original-Received: from [87.69.77.57] (port=2637 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o0k89-0006vN-FZ; Mon, 13 Jun 2022 09:29:21 -0400 In-Reply-To: (message from Stefan Monnier on Mon, 13 Jun 2022 09:19:48 -0400) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:291143 Archived-At: > From: Stefan Monnier > Cc: Po Lu , yantar92@gmail.com, emacs-devel@gnu.org > Date: Mon, 13 Jun 2022 09:19:48 -0400 > > Eli Zaretskii [2022-06-13 05:37:00] wrote: > >> Come 2037, the systems with unfixed libc's will automatically become > >> obsolete. We won't have to do anything. > > Emacs compiled with those obsolete libc versions can be moved to a > > newer system, and will generally still continue working. > > I don't think so, unless they come with two different `libc`s, in which > case those applications using the newer `libc` might still work and > those with the old `libc` won't, but even so users of such a system will > presumably know that those programs using the old `libc` need to be run > in a specialized environment with a bogus time or something like that. You evidently think about systems where libc is a single shared library, and the _only_ library used by Emacs where the 32-bit time_t type is used. Think more generally: what if some of what you consider 'libc' was linked statically into Emacs, and what if some of the other libraries Emacs uses use 32-bit time type? > The argument is that whatever happens to Emacs will also happen to ll > other programs using that same `libc` That is not necessarily so.