From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: emacs-27 breaks null function Date: Mon, 06 Apr 2020 14:12:08 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="90825"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel To: "Nelson H. F. Beebe" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Apr 06 20:36:19 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jLWbb-000NX1-Jp for ged-emacs-devel@m.gmane-mx.org; Mon, 06 Apr 2020 20:36:19 +0200 Original-Received: from localhost ([::1]:36932 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLWba-0004o3-Mz for ged-emacs-devel@m.gmane-mx.org; Mon, 06 Apr 2020 14:36:18 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42146) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLWEI-0003zU-Nn for emacs-devel@gnu.org; Mon, 06 Apr 2020 14:12:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jLWEH-0001Ov-7R for emacs-devel@gnu.org; Mon, 06 Apr 2020 14:12:14 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:30287) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jLWEH-0001OQ-3P for emacs-devel@gnu.org; Mon, 06 Apr 2020 14:12:13 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 119708118C; Mon, 6 Apr 2020 14:12:12 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id ED91E80D6C; Mon, 6 Apr 2020 14:12:09 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1586196729; bh=RhsnzKLe3qz/jW2s6Z54/QEGIbSfKrfkUOZKb6F4PJA=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=Rclt/vi7rjOcmuVKaWkQi10Lbtwd5ufJ5ufo5maOJiW8XDNjUi/hStliwYhB3wXYQ AaPLlT+gErRCYp2dacIrlhNxDMcPsBA69DpeaRG3BQ3umhS+Ou4SM8BlO13UzwtHsk RaIvtlHA6n8/MLw2UV9Zz5llE24oDFr+VmXD4kT2UK/Ogj7BNd/ehSdi5K+eW2Bwxo 7Q+KuPJ+knTlfmnB56Oo2Kqo7ROapzMqPA99+zvKx1NjI1vY2rxCrQzLvGGczRtNbE m8chUsBnfmGgzlGd8G3uTs/sz31XZ885dOKezXaOfVrk1+vA9QScOlr0KWtGb4HmB3 YQ15UlaWVX4pQ== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id A9C851202BA; Mon, 6 Apr 2020 14:12:09 -0400 (EDT) In-Reply-To: (Nelson H. F. Beebe's message of "Mon, 6 Apr 2020 11:30:04 -0600") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 132.204.25.50 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:246550 Archived-At: > Some 34 years ago, I wrote a function with the code snippet > > (if (null executing-macro) ...) > > and that function has been in daily use through emacs-26. However, > with emacs-27, I get an error with this traceback > > Symbol's value as variable is void: executing-macro Grep says: % grep executing-macro etc/NEWS* etc/NEWS.1-17:** Variable `executing-macro' renamed `executing-kbd-macro'. % So you've been using a variable name that's been obsolete for ... 34 years? I took a bit more work to find why you're only seeing this now: % git log | grep -C9 executing-macro | head (select-tags-table-mode): No need to set `buffer-read-only' explicitly, `special-mode' takes care of that. * lisp/vc/log-edit.el (log-edit-show-files): Use `special-mode' instead of setting `buffer-read-only' explicitly. commit a6844ee86e0577acaeb699a26902c4dc9e7352aa Author: Sam Steingold Date: Wed Nov 22 16:07:54 2017 -0500 Remove variable alias executing-macro, obsolete since before 19.34. % Not sure why it's not mentioned in etc/NEWS, but it looks like a simple oversight. Stefan