Re: BUG Re: [PATCH] ox-latex.el: Unify in one single list Babel and Polyglossia languages alists

[Ihor Radchenko <yantar92@gmail.com>]

Kai von Fintel <fintel@mit.edu> writes:

>>>> Debugger entered--Lisp error: (void-variable org-latex-babel-language-alist)
>>>>  org-latex--format-spec(
>>
>> org-latex-babel-language-alist is the new variable introduced in the
>> patch. You seem to be loading "mixed" Org versions - built-in + latest.
>
> No, I’m looking just at the HEAD version of =ox-latex.el= at https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/lisp/ox-latex.el
>
> The new variable is =org-latex-language-alist=, defined on line 175f.
>
> But, =org-latex—format-spec=, defined on line 1860ff, uses the old variable names:
>
> (defun org-latex--format-spec (info)
>   "Create a format-spec for document meta-data.
> INFO is a plist used as a communication channel."
>   (let ((language (let ((lang (plist-get info :language)))
> 		    (or (cdr (assoc-string lang org-latex-babel-language-alist t))
> 			(nth 1 (assoc-string lang org-latex-polyglossia-language-alist t))
> 			lang))))
>
> This borks my latex exports.

This is unrelated to the error you are seeing. void-variable error is
thrown for org-latex-babel-language-alist, so I still suggest checking
the place in your config where you are loading Org.

However, you did raise an important omission in the patch - the variable
value was lost in the patch. It was not supposed to happen. I now
restored (in 127e7fee4) the defconst statements and moved them into
org-compat.el. Thus, they can be used by third-party code for the time
being.

Best,
Ihor