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From: Simon Josefsson <jas@extundo.com>
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Subject: Re: Oort Gnus v0.19 is released
Date: Mon, 28 Apr 2003 21:10:15 +0200
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In-Reply-To: <m3u1cia70g.fsf@defun.localdomain> (Jesper Harder's message of
 "Mon, 28 Apr 2003 19:03:59 +0200")
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Jesper Harder <harder@myrealbox.com> writes:

> Simon Josefsson <jas@extundo.com> writes:
>
>> Romain FRANCOISE <romain@orebokech.com> writes:
>>
>>> Matthias Andree <ma@dt.e-technik.uni-dortmund.de> writes:
>>>
>>>> They have been showing up for some days now.
>>>
>>> Let me guess... since you upgraded to Emacs 21.3?  21.2 didn't show
>>> these warnings, and Emacs from CVS doesn't either, so it's probably 21.3
>>> specific, and hence safe to ignore.
>>
>> Why should we ignore 21.3?  It is the latest stable release, so
>> ignoring it doesn't seem ideal to me.
>
> We could replace (pop x) with (setq x (cdr x)) in those places.

Or create a gnus-pop macro.

> There is a grain of truth in the warnings, i.e. that pop is a tiny bit
> less efficient when we don't use the return value -- not that I think
> anyone would notice the difference.

The warning has been removed, but I'm not sure I agree it had even a
tiny grain of truth in it -- the docstring for `pop' says "Remove and
return the head of the list stored in PLACE.", and I assume this is
what CL `pop' is supposed to do.  Using it in that way in elisp should
never generate a warning IMHO.