From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: [Emacs-diffs] master e4de91d: Introduce new macros to cover Emacs's new names in cl-lib.el. Date: Sat, 15 Aug 2015 12:34:08 +0000 Message-ID: <20150815123408.GA2637@acm.fritz.box> References: <20150812213205.640.84865@vcs.savannah.gnu.org> <20150813105530.GA2834@acm.fritz.box> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1439642011 29386 80.91.229.3 (15 Aug 2015 12:33:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 15 Aug 2015 12:33:31 +0000 (UTC) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Aug 15 14:33:23 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 1ZQaeI-0007Ns-N9 for ged-emacs-devel@m.gmane.org; Sat, 15 Aug 2015 14:33:22 +0200 Original-Received: from localhost ([::1]:49885 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZQaeI-0001SA-2Y for ged-emacs-devel@m.gmane.org; Sat, 15 Aug 2015 08:33:22 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45690) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZQaeE-0001S2-Nt for emacs-devel@gnu.org; Sat, 15 Aug 2015 08:33:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZQaeB-0001vB-I9 for emacs-devel@gnu.org; Sat, 15 Aug 2015 08:33:18 -0400 Original-Received: from mail.muc.de ([193.149.48.3]:38430) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZQaeB-0001uY-91 for emacs-devel@gnu.org; Sat, 15 Aug 2015 08:33:15 -0400 Original-Received: (qmail 63331 invoked by uid 3782); 15 Aug 2015 12:33:12 -0000 Original-Received: from acm.muc.de (p579E8C8D.dip0.t-ipconnect.de [87.158.140.141]) by colin.muc.de (tmda-ofmipd) with ESMTP; Sat, 15 Aug 2015 14:33:11 +0200 Original-Received: (qmail 3257 invoked by uid 1000); 15 Aug 2015 12:34:08 -0000 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x X-Received-From: 193.149.48.3 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:188807 Archived-At: Hello, Stefan. On Thu, Aug 13, 2015 at 12:02:20PM -0400, Stefan Monnier wrote: > > The (eval-when-compile (require 'cl)) was inadequate, because > > cl.el (now cl-lib.el) is now required at run-time, too. Without the > > change, the error "cl-mapcan not known" gets thrown when attempting to > > visit the first file.c in an Emacs session. > Oh, right, sorry, so the question becomes: what is the difference > between `require' and `cc-external-require' here? Not a great deal, to be honest. The main difference is that symbols whose function cell has been given a placeholder value to inhibit compiler warnings have these function cells restored to their correct values in `cc-external-require' around the actual `require'. An example of an XEmacs function which gets this treatment is `buffer-syntactic-context'. An example of an Emacs function is `string-to-syntax'. > Stefan -- Alan Mackenzie (Nuremberg, Germany).