From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: `exec shield' test in configure too strict? Date: Wed, 06 Oct 2004 08:58:41 -0400 Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Message-ID: References: <200410052211.i95MBJxm023321@coolsville.localdomain> <4163A343.7060103@swipnet.se> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1097067590 24147 80.91.229.6 (6 Oct 2004 12:59:50 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 6 Oct 2004 12:59:50 +0000 (UTC) Cc: emacs-devel@gnu.org, Miles Bader Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Oct 06 14:59:35 2004 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1CFBOI-0005jG-00 for ; Wed, 06 Oct 2004 14:59:35 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1CFBUz-0006mZ-IC for ged-emacs-devel@m.gmane.org; Wed, 06 Oct 2004 09:06:29 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33) id 1CFBUX-0006ez-5h for emacs-devel@gnu.org; Wed, 06 Oct 2004 09:06:01 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33) id 1CFBUV-0006dt-52 for emacs-devel@gnu.org; Wed, 06 Oct 2004 09:05:59 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1CFBUV-0006dp-0R for emacs-devel@gnu.org; Wed, 06 Oct 2004 09:05:59 -0400 Original-Received: from [132.204.24.67] (helo=mercure.iro.umontreal.ca) by monty-python.gnu.org with esmtp (Exim 4.34) id 1CFBNW-0006gc-5R; Wed, 06 Oct 2004 08:58:46 -0400 Original-Received: from hidalgo.iro.umontreal.ca (hidalgo.iro.umontreal.ca [132.204.27.50]) by mercure.iro.umontreal.ca (Postfix) with ESMTP id 308998282F0; Wed, 6 Oct 2004 08:58:45 -0400 (EDT) Original-Received: from asado.iro.umontreal.ca (asado.iro.umontreal.ca [132.204.24.84]) by hidalgo.iro.umontreal.ca (Postfix) with ESMTP id 342F74AC6A7; Wed, 6 Oct 2004 08:58:42 -0400 (EDT) Original-Received: by asado.iro.umontreal.ca (Postfix, from userid 20848) id 1C3728CA23; Wed, 6 Oct 2004 08:58:42 -0400 (EDT) Original-To: "Jan D." In-Reply-To: <4163A343.7060103@swipnet.se> (Jan D.'s message of "Wed, 06 Oct 2004 09:48:19 +0200") User-Agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3.50 (gnu/linux) X-DIRO-MailScanner-Information: Please contact the ISP for more information X-DIRO-MailScanner: Found to be clean X-DIRO-MailScanner-SpamCheck: n'est pas un polluriel, SpamAssassin (score=0, requis 5) X-MailScanner-From: monnier@iro.umontreal.ca X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 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 Xref: main.gmane.org gmane.emacs.devel:27997 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:27997 >> We can output the message even if the build succeeds. > You lost me, what message? The one in configure or the hypotetical new one > after temacs dumps core? I expect the message would be the same in either case (more or less), so I just said "the" message. >> I.e. just transform the current error into a warning. > I've done that. Thanks. > You maybe never built Emacs on a machine where the build takes 20 minutes :-) Believe me, I've done my share of building Emacs on slow machines. > If exec-shield and/or its effects, like randomized heap start, becomes more > widespread this will be a very common case. I would not be surprised if > something like it will be incorporated in to the Linux kernel proper, and > not just for Fedora as it is now (and some unofficial Debian patches seems > to exist). If that's the case, then an error message (no matter how good) is *not* the answer. We simply do not want to go down that road: Emacs should "just work" at least in normal (i.e. common) circumstances. Stefan