From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Making --with-wide-int the default Date: Fri, 16 Oct 2015 01:27:38 -0700 Organization: UCLA Computer Science Department Message-ID: <5620B4FA.1000804@cs.ucla.edu> References: <83h9unukbg.fsf@gnu.org> <54E0DEF8.7020901@dancol> <83egpruiyp.fsf@gnu.org> <54E0FF93.2000104@dancol.org> <5610ED13.1010406@dancol.org> <56117F37.9060808@dancol.org> <83oag087gs.fsf@gnu.org> <83oafz70im.fsf@gnu.org> <5620AF43.4050401@cs.ucla.edu> <83k2qn6xfm.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1444984103 11825 80.91.229.3 (16 Oct 2015 08:28:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 16 Oct 2015 08:28:23 +0000 (UTC) Cc: lekktu@gmail.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 16 10:28:08 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Zn0Mx-000583-0Z for ged-emacs-devel@m.gmane.org; Fri, 16 Oct 2015 10:28:07 +0200 Original-Received: from localhost ([::1]:51597 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zn0Mv-0008KC-TT for ged-emacs-devel@m.gmane.org; Fri, 16 Oct 2015 04:28:05 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41113) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zn0Md-0008K7-O3 for emacs-devel@gnu.org; Fri, 16 Oct 2015 04:27:48 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zn0Mc-0007Sc-Qe for emacs-devel@gnu.org; Fri, 16 Oct 2015 04:27:47 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:38961) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zn0MX-0007PZ-1q; Fri, 16 Oct 2015 04:27:41 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 5095F160CB6; Fri, 16 Oct 2015 01:27:40 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id DK43BCF2l3K2; Fri, 16 Oct 2015 01:27:38 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 9F1F8160D6B; Fri, 16 Oct 2015 01:27:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id zNYLjdJzC2xu; Fri, 16 Oct 2015 01:27:38 -0700 (PDT) Original-Received: from [192.168.1.9] (pool-100-32-155-148.lsanca.fios.verizon.net [100.32.155.148]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 7E3D0160CB6; Fri, 16 Oct 2015 01:27:38 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 In-Reply-To: <83k2qn6xfm.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:191721 Archived-At: Eli Zaretskii wrote: > Would you say it's safe to make this the default for Emacs 25? I'd say it's safe, yes. --with-wide-int assumes 64-bit int but since we're requiring C99-or-later now this should be safe. And as you say, if there are performance problems people can configure --with-wide-int=no. I guess the main problem will be people configuring with --enable-checking and with CFLAGS=-g0 on old slow 32-bit machines. However, people using non-default flags can just add --with-wide-int=no to their mix of flags, so this should be OK.