From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Better way to make sure external command exists in the system? Date: Sun, 21 Mar 2021 17:10:29 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33294"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0.6 (2021-03-06) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Mar 21 15:13:27 2021 Return-path: Envelope-to: geh-help-gnu-emacs@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 1lNypa-0008Z7-FA for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 21 Mar 2021 15:13:26 +0100 Original-Received: from localhost ([::1]:38906 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lNypZ-0002gh-Gw for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 21 Mar 2021 10:13:25 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57192) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lNyot-0002cj-Ow for help-gnu-emacs@gnu.org; Sun, 21 Mar 2021 10:12:43 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:59217) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lNyos-0004k2-BU for help-gnu-emacs@gnu.org; Sun, 21 Mar 2021 10:12:43 -0400 Original-Received: from localhost ([::ffff:41.202.241.53]) (AUTH: PLAIN securesender, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000001E0AB.0000000060575457.000056FE; Sun, 21 Mar 2021 07:12:39 -0700 Mail-Followup-To: help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:128474 Archived-At: * 2QdxY4RzWzUUiLuE@potatochowder.com <2QdxY4RzWzUUiLuE@potatochowder.com> [2021-03-19 17:18]: > Using executable-find at load time is better because modules are only > loaded once, but the functionality inside the modules is executed > repeatedly. And how to practically prevent loading if external commands are not available? What is best approach?