Re: cannot get AUCTeX to work

[Greg Bognar]

> Pastiche P <pastiche228@gmail.com> writes:
>
> The error is gone, but I'm not sure AUCTeX itself is properly loaded. E.g.,
> the command LaTeX-section is undefined. Or perhaps I'm misunderstanding
> something?

In my experience, you need to do

(use-package latex
  :ensure auctex
  :mode ("\\.tex\\'" . LaTeX-mode)
  :init (...)
  :config (setq TeX-auto-save t
                TeX-parse-self t
                etc...))

This will load all the other libraries that latex.el requires.

I'm surprised by Tassilo's suggestion as tex-mode.el is not part of AUCTeX.  It
is the built-in (La)TeX mode for Emacs -- isn't it?


> On Sat, 9 Jan 2021 at 11:18, Tassilo Horn <tsdh@gnu.org> wrote:
> 
> > Pastiche P <pastiche228@gmail.com> writes:
> >
> > Hi Pastiche,
> >
> > > I just installed AUCTeX 13.0.1 using M-x list-packages. This is Emacs
> > > 27.1 under Windows.
> > >
> > > I put this in my config:
> > >
> > > (use-package tex
> > >   :ensure auctex
> > >   :config
> > >   (setq TeX-auto-save t)
> > >   (setq TeX-parse-self t))
> > >
> > > Whenever I open a *.tex file, I get
> > >
> > > Debugger entered--Lisp error: (void-function TeX-latex-mode)
> >
> > Please try this use-package spec:
> >
> > (use-package tex-mode
> >   :ensure auctex
> >   :config
> >   (setq TeX-auto-save t)
> >   (setq TeX-parse-self t))
> >
> > Does that work?  It does for me.
> >
> > Bye,
> > Tassilo