From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Conditional binding and testing of `lexical-binding' Date: Sun, 02 Jan 2022 13:27:14 -0500 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1243"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: "emacs-devel@gnu.org" To: Drew Adams Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Jan 02 19:28:51 2022 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 1n45b8-0000B4-F9 for ged-emacs-devel@m.gmane-mx.org; Sun, 02 Jan 2022 19:28:50 +0100 Original-Received: from localhost ([::1]:40738 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n45b6-00048I-Qi for ged-emacs-devel@m.gmane-mx.org; Sun, 02 Jan 2022 13:28:48 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:52458) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n45Zj-0002dE-Nz for emacs-devel@gnu.org; Sun, 02 Jan 2022 13:27:23 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:45195) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n45Zh-0002M3-G0 for emacs-devel@gnu.org; Sun, 02 Jan 2022 13:27:22 -0500 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id D6C3010018E; Sun, 2 Jan 2022 13:27:17 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 84D75100054; Sun, 2 Jan 2022 13:27:16 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1641148036; bh=klyiw7+YhaQwjaDn7uOa6HVDvA9W982qxJrTRmLmLUc=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=ZZWvzqLa4iE4HiLGV/OtrcSeugTdnFl1MD/WP0emDpwEMEKvC/WDXvtPrIZdpGFaS 8Q1x47rDXHyn88uxHKYNmYbeyTKSl9sWVHLXz1k6HQ9UFhA8jdcENK0kN70efYtUGt u5Ty9W4zmCMZbm0husctzz+JM5MQRAbjXV5MdWBb9LdJulXcmdjySlW4OUPYxsXcxT 9yF55v7S9ZGrLRfP1UrUOD9yab85z2B7hi3jpq96gvDVZL7uNP8qDpO8ZIzQegASFW PO30NNNjj4Ta3vdKgkEy/t4F93aNYLvUejwbFibBZr9KfeF5r8uja6/gXVgRH5ltAH HwQxx/GcCfyhw== Original-Received: from pastel (unknown [216.154.30.173]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 5FE0A120218; Sun, 2 Jan 2022 13:27:16 -0500 (EST) In-Reply-To: (Drew Adams's message of "Sat, 1 Jan 2022 22:24:36 +0000") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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:283945 Archived-At: > What's the best way, or a reasonable way, of > setting `lexical-binding' conditionally, I don't know what you mean by that, nor why you think it's necessary for: > so a library can be used with both Emacs versions that support lexical > binding and versions that don't support it? Adding the -*- lexical-binding:t -*- at the beginning of the file does that (this is used by CC-mode, for example). Stefan