From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#12446: port better to POSIX hosts lacking _setjmp Date: Fri, 14 Sep 2012 14:28:23 -0700 Message-ID: <5053A177.1020608@cs.ucla.edu> References: <50538925.3010608@cs.ucla.edu> <83txv0tkho.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1347658153 29614 80.91.229.3 (14 Sep 2012 21:29:13 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 14 Sep 2012 21:29:13 +0000 (UTC) Cc: lekktu@gmail.com, 12446@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Sep 14 23:29:16 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1TCdRo-0000Wk-Hn for geb-bug-gnu-emacs@m.gmane.org; Fri, 14 Sep 2012 23:29:12 +0200 Original-Received: from localhost ([::1]:46366 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TCdRk-0004Wn-Mc for geb-bug-gnu-emacs@m.gmane.org; Fri, 14 Sep 2012 17:29:08 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:50206) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TCdRh-0004RY-Ja for bug-gnu-emacs@gnu.org; Fri, 14 Sep 2012 17:29:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TCdRg-0003ZJ-KM for bug-gnu-emacs@gnu.org; Fri, 14 Sep 2012 17:29:05 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53028) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TCdRg-0003ZB-Hk for bug-gnu-emacs@gnu.org; Fri, 14 Sep 2012 17:29:04 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TCdSd-0004fw-4j for bug-gnu-emacs@gnu.org; Fri, 14 Sep 2012 17:30:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Paul Eggert Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 14 Sep 2012 21:30:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12446 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 12446-submit@debbugs.gnu.org id=B12446.134765816917901 (code B ref 12446); Fri, 14 Sep 2012 21:30:03 +0000 Original-Received: (at 12446) by debbugs.gnu.org; 14 Sep 2012 21:29:29 +0000 Original-Received: from localhost ([127.0.0.1]:34340 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TCdS4-0004ef-CE for submit@debbugs.gnu.org; Fri, 14 Sep 2012 17:29:28 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:39818) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TCdS0-0004eV-0X for 12446@debbugs.gnu.org; Fri, 14 Sep 2012 17:29:26 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id EF51A39E800E; Fri, 14 Sep 2012 14:28:23 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DcL2svc234Ze; Fri, 14 Sep 2012 14:28:23 -0700 (PDT) Original-Received: from penguin.cs.ucla.edu (Penguin.CS.UCLA.EDU [131.179.64.200]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id A789F39E8008; Fri, 14 Sep 2012 14:28:23 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120828 Thunderbird/15.0 In-Reply-To: <83txv0tkho.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:64322 Archived-At: On 09/14/2012 01:30 PM, Eli Zaretskii wrote: > Why not simply switch to using > ANSI- and Posix-standard setjmp/longjmp? Because longjmp might alter the signal mask, and it might not. POSIX doesn't say either way, platforms differ in this respect, and the differences can mess things up and slow things down. This is why Emacs uses _longjmp now, on GNU and POSIXish platforms.