Hi Keita, Ikumi Keita <ik...@ikumi.que.jp> writes:
> I noticed that emacs 27.1 fails with the current AUCTeX master. When I > open circ.tex with emacs 27.1, it signals error with > "(wrong-type-argument number-or-marker-p nil)" in `TeX-auto-parse'. The > local values of `TeX-auto-parse-length' and `TeX-auto-x-parse-length' > are both nil in the circ.tex buffer. > > It seems that it is due to introduction of :local keyword in defcustom: > ,---- > | 77a02f837a0d32e2f7b47764d6e7f64ad76001ba > | Author: Arash Esbati <ar...@gnu.org> > | AuthorDate: Thu Jan 18 22:55:12 2024 +0100 > | Commit: Arash Esbati <ar...@gnu.org> > | CommitDate: Thu Jan 18 22:55:12 2024 +0100 > | > | Mark options as buffer-local with the :local keyword > `---- > As far as I can see, it is a bug of emacs 27.1. The function > `custom-declare-variable', which is the essential part of `defcustom', > puts the `make-variable-buffer-local' declaration _before_ the actual > `defvar', thus ending up with inconsistent local values. Thanks for tracking this down. I saw this report[1] which is exactly what you describe, but I didn't dig further since I don't have Emacs 27.1 on my HD. This is indeed an Emacs bug which was fixed with commit dea3d6aa18[2] and is available with Emacs 27.2. > Hence we have to refrain from using :local in `defcustom' until we drop > support for emacs 27 :-( Agreed. I will try to revert the change above ASAP, next week hopefully. Again, many thanks for catching this. Best, Arash Footnotes: [1] https://emacs.stackexchange.com/q/80389/12242 [2] https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=dea3d6aa18e54f0d8d75cd219b511bac5b3c87b1
