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From: Colin Walters <walters@verbum.org>
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Subject: Re: defvar vs setqif..
Date: 19 May 2002 16:59:46 -0400
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On Sun, 2002-05-19 at 16:44, D. Goel wrote:

> 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.  But `add-hook' won't lose if the hook isn't
bound yet.