From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Nicolas Richard Newsgroups: gmane.emacs.devel Subject: Re: Supporting multiline Package-Requires header Date: Tue, 11 Aug 2015 10:44:06 +0200 Message-ID: <87k2t2b4fd.fsf@members.fsf.org> References: <877fp3dxt2.fsf@gmail.com> <8737zrcft1.fsf@members.fsf.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1439282677 29300 80.91.229.3 (11 Aug 2015 08:44:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 11 Aug 2015 08:44:37 +0000 (UTC) Cc: emacs-devel To: Artur Malabarba Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Aug 11 10:44:29 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 1ZP5Ab-0000Mq-GX for ged-emacs-devel@m.gmane.org; Tue, 11 Aug 2015 10:44:29 +0200 Original-Received: from localhost ([::1]:33321 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZP5Ab-0000Nu-06 for ged-emacs-devel@m.gmane.org; Tue, 11 Aug 2015 04:44:29 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41974) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZP5AO-0000NK-G9 for emacs-devel@gnu.org; Tue, 11 Aug 2015 04:44:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZP5AK-0001DU-GE for emacs-devel@gnu.org; Tue, 11 Aug 2015 04:44:16 -0400 Original-Received: from mxin.ulb.ac.be ([164.15.128.112]:41444) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZP5AK-0001DQ-AT for emacs-devel@gnu.org; Tue, 11 Aug 2015 04:44:12 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkEFACy1yVWkD4Xx/2dsb2JhbABdgkmsHAEGm0kCggABAQEBAQGBC4QkAQEDAXkQCAMOEyUPAQRJiDkIzxYBAQgCIIYfhTKFCQeELAEElRCHcQWNS5EzJoQAPIJ/AQEB Original-Received: from mathsrv4.ulb.ac.be (HELO localhost) ([164.15.133.241]) by smtp.ulb.ac.be with ESMTP; 11 Aug 2015 10:44:11 +0200 In-Reply-To: (Artur Malabarba's message of "Mon, 10 Aug 2015 16:49:29 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 164.15.128.112 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:188717 Archived-At: >> I understand that the new tools will work with old files, but will the >> new files work with the old tools ? i.e. will it be possible to install >> these packages to emacs 24.5 ? > > No. A package that writes it like this will only be (properly) installable on Emacs 25 and up. > > Of course I'd never drop support for Emacs 24 on one of my packages > just for the sake of this minor feature. But once I start routinely > requiring Emacs 25.1 because of other features, I'll be glad to have > this as a bonus. It makes sense. My worry is also that emacs-24 must have a way to understand that the package is "not installable". e.g. we don't want list-packages to suddenly break on older emacsen (I have no idea if this can actually happen). -- Nico