From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: defvar vs setqif..
Date: Mon, 20 May 2002 15:33:22 -0600 (MDT)
Sender: emacs-devel-admin@gnu.org
Message-ID: <200205202133.g4KLXMI25911@aztec.santafe.edu>
References: <ap3elg77tqj.fsf@poynting.umd.edu> <1021841986.24318.2803.camel@space-ghost>
Reply-To: rms@gnu.org
NNTP-Posting-Host: localhost.gmane.org
X-Trace: main.gmane.org 1021930553 32071 127.0.0.1 (20 May 2002 21:35:53 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Mon, 20 May 2002 21:35:53 +0000 (UTC)
Cc: emacs-devel@gnu.org
Return-path: <emacs-devel-admin@gnu.org>
Original-Received: from quimby.gnus.org ([80.91.224.244])
	by main.gmane.org with esmtp (Exim 3.33 #1 (Debian))
	id 179uor-0008LA-00
	for <emacs-devel@main.gmane.org>; Mon, 20 May 2002 23:35:53 +0200
Original-Received: from fencepost.gnu.org ([199.232.76.164])
	by quimby.gnus.org with esmtp (Exim 3.12 #1 (Debian))
	id 179v2y-0001Pu-00
	for <emacs-devel@quimby.gnus.org>; Mon, 20 May 2002 23:50:29 +0200
Original-Received: from localhost ([127.0.0.1] helo=fencepost.gnu.org)
	by fencepost.gnu.org with esmtp (Exim 3.34 #1 (Debian))
	id 179upA-0006o1-00; Mon, 20 May 2002 17:36:12 -0400
Original-Received: from pele.santafe.edu ([192.12.12.119])
	by fencepost.gnu.org with esmtp (Exim 3.34 #1 (Debian))
	id 179umS-0006Ri-00; Mon, 20 May 2002 17:33:24 -0400
Original-Received: from aztec.santafe.edu (aztec [192.12.12.49])
	by pele.santafe.edu (8.11.6+Sun/8.9.3) with ESMTP id g4KLXMm14695;
	Mon, 20 May 2002 15:33:22 -0600 (MDT)
Original-Received: (from rms@localhost)
	by aztec.santafe.edu (8.10.2+Sun/8.9.3) id g4KLXMI25911;
	Mon, 20 May 2002 15:33:22 -0600 (MDT)
X-Authentication-Warning: aztec.santafe.edu: rms set sender to rms@aztec using -f
Original-To: walters@verbum.org
In-Reply-To: <1021841986.24318.2803.camel@space-ghost> (message from Colin
	Walters on 19 May 2002 16:59:46 -0400)
Errors-To: emacs-devel-admin@gnu.org
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.0.9
Precedence: bulk
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Post: <mailto:emacs-devel@gnu.org>
List-Subscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=subscribe>
List-Id: Emacs development discussions. <emacs-devel.gnu.org>
List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://mail.gnu.org/pipermail/emacs-devel/>
Xref: main.gmane.org gmane.emacs.devel:4209
X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:4209

    > An example: my .emacs needs to, say, (add-hook 'foo-mode-hook... ),
    > but the hook may not be defined, so i (defvar foo-mode-hook) before
    > this statement. 

    Why do you defvar it?  The best solution is to (require 'foo-mode)
    before adding the hook.

That is often a costly solution, because it forces loading of
foo-mode.el.  If you package always needs foo-mode, the price must be
paid anyway.  But when it does not always need foo-mode, you should
not require it at load time.