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From: Jesper Harder <harder@ifa.au.dk>
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Subject: Re: Cannot open load file: tool-bar
Date: Tue, 05 Nov 2002 23:50:46 +0100
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kai.grossjohann@uni-duisburg.de (Kai Großjohann) writes:

> Jesper Harder <harder@ifa.au.dk> writes:
>
>> Couldn't we use (featurep 'tool-bar)?  This should only return t in
>> Emacs 21 versions with tool-bar support.
>
> What if tool-bar.el isn't loaded?
>
> When it _is_ loaded, fboundp on some function in tool-bar.el should
> be about as good as (featurep 'tool-bar).

Yeah, you're right.  I guess what I don't understand is why tool-bar.el
needs to be require'd explicitly.  I.e. why this isn't sufficient:

(if (and 
       (featurep 'tool-bar)
       (default-value 'tool-bar-mode)
       (not gnus-group-toolbar-map))

Hmm, ShengHuo probably knows the answer:

2002-04-02  ShengHuo ZHU  <zsh@cs.rochester.edu>

	* gnus-group.el (gnus-group-make-tool-bar): Load tool-bar first.