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From: Eli Zaretskii <eliz@is.elta.co.il>
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Subject: Re: [Emacs-diffs] Changes to emacs/lisp/ChangeLog
Date: Mon, 1 Apr 2002 12:19:34 +0200 (IST)
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On Mon, 1 Apr 2002, Pavel =?iso-8859-2?q?Jan=EDk?= wrote:

> I think it would be much cleaner to:
> 
> - Fprovide (intern ("sound"), Qnil) in sound.c when `play-sound' is defined
> 
> - use (featurep 'sound) to check if `play-sound' is defined and if it is
>   not, provide meaningful error message to the user telling him that his
>   Emacs was compiled without sound support

Alternatively, rename Fplay_sound to Fplay_sound_internal, and provide a 
Lisp function play-sound, defined on all platforms, that displays an 
error message (or maybe silently does nothing) if play-sound-internal is 
not fboundp.