Re: problem with cal-tex-cursor-month -> reftex-TeX-master-file -> TeX-master-file

[Arash Esbati]

Mandar Mitra <mandar.mitra@gmail.com> writes:

> Thanks! That makes sense: the source of my error is the
> TeX-master-file function, so you don't run into the error because
> AUCTeX doesn't get activated for you.
>
> Apologies if this is a stupid question, but how is it that you get the
> inbuilt latex-mode in a .tex buffer rather than AUCtex, even with
> AUCtex installed?

This is what I also want to find out.  One reason can be the recent
changes to AUCTeX with this commit[1].  Other can be the way you've
installed AUCTeX and/or configured it.  Therefore my question if you can
come up with a minimal setup starting with 'emacs -Q'.

I'm using the latest git version directly out of the git repo, no
installation etc. with Emacs 30.0.50 (21e272fe4f).

> After digging some more, it appears that I have some kind of advice
> that overrides latex-mode with TeX-latex-mode.el. This is what C-h m
> shows in the calendar.tex buffer:
>
> ---------------------------------------------------------------------------
> The major mode is LaTeX/FPS mode defined in tex-mode.el:
>
> This function has :override advice: ‘TeX-latex-mode’.
>
> This is an :override advice, which means that ‘latex-mode’ isn’t
> run at all, and the documentation below may be irrelevant.
> ---------------------------------------------------------------------------

That seems Ok, it was the way it was done before the change mentioned
above.  Now it looks like this when I open a .tex file:

--8<---------------cut here---------------start------------->8---
The major mode is LaTeX/P mode defined in latex.el:

Major mode in AUCTeX for editing LaTeX files.
See info under AUCTeX for full documentation.

Entering LaTeX mode calls the value of ‘text-mode-hook’,
then the value of ‘TeX-mode-hook’, and then the value
of ‘LaTeX-mode-hook’.
--8<---------------cut here---------------end--------------->8---

Best, Arash

Footnotes:
[1]  
https://git.savannah.gnu.org/cgit/auctex.git/commit/?id=48cc5069988ea1e278f184c236821179e2914a40