From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.help Subject: RE: How to avoid warning, with undefined functions in a package Date: Mon, 19 Oct 2020 08:16:38 -0700 (PDT) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1599"; mail-complaints-to="usenet@ciao.gmane.io" To: Jean Louis , help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Oct 19 17:29:12 2020 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 1kUX60-0000IM-8N for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 19 Oct 2020 17:29:12 +0200 Original-Received: from localhost ([::1]:38548 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUX5z-0000Aq-9P for geh-help-gnu-emacs@m.gmane-mx.org; 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envelope-from=drew.adams@oracle.com; helo=aserp2120.oracle.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/19 11:16:41 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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:124580 Archived-At: > Those are undefined functions and variables, but I would not like > defining them, or requiring them, unless user has that other package. >=20 > What would be good approach to solve that, and that there are no > compiler warnings? >=20 > In rcd-speak-festival: > rcd-utilities.el:121:23: Warning: reference to free variable > =E2=80=98festival-program-name=E2=80=99 For the undefined variable warnings: If you are convinced that your code do= es the right thing, so those warnings are spurious, add an empty `defvar' f= or each such variable warning. E.g., for variable foo, add this: ;; No initial value. Just tells the byte compiler ;; that this is a special variable. ;; (defvar foo)