>> Hmm... this does look awful 🙁 > Exactly. 💀 How 'bout a hack more like:
(defvar auctex--extra-mode-parent
'((LaTeX-mode . latex-mode)
...))
(advice-add 'derived-mode-p :after-until #'auctex--compat-derived-mode-p)
(defun auctex--compat-derived-mode-p (&rest modes)
(let ((extra-parent (assq major-mode auctex--extra-mode-parent)))
(and extra-parent (memq (cdr extra-parent) modes))))
?
Stefan
