jsb...@mimuw.edu.pl (Janusz S. Bień) writes:

> On Fri, Feb 23 2018 at  9:52 +0100, d...@gnu.org writes:
>> jsb...@mimuw.edu.pl (Janusz S. Bień) writes:
>>
>>> Hi!
>>>
>>> When I try to use TeX-next-error, I get
>>>
>>> TeX-parse-TeX: Symbol's function definition is void: signum
>>>
>>> It's version 11.89.5 on
>>> GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11) of
>>> 2017-09-12 on hullmann, modified by Debian
>>
>> 24.5?  25 came out in 2014.
>
> I was not aware that the upgrade in Debian from 24 to 25 is not
> automatic. Now I have
>
> GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11) of
> 2017-09-15, modified by Debian
>
> The upgrade has not affected the AUCTex version, it is still 11.89.5. If
> I remember well, I've installed it from ELPA.
>
> The problem still occurs.
>
>> That being said, our prerequisites in doc/install.texi do list Emacs 24
>> as requirement.
>
> So?

Your complaint would have been valid even when using 24.  I do think
that your problem has already been fixed in current AUCTeX versions: at
least I can find no active use of signum.

-- 
David Kastrup

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