Re: [BUG] Setting compile command causes fontification error [9.5 (release_9.5-661-g5e0afb @ /home/quintus/.emacs.d/org-mode/lisp/)]

[Ihor Radchenko <yantar92@gmail.com>]

"Christopher M. Miles" <numbchild@gmail.com> writes:

> From the backtrace, seems (buffer-file-name) returned nil, I guess you
> first created a new buffer and have not saved it to file. That caused it
> return nil. Not Org Mode problem. Not saving file is a common problem in
> young programmer as I experienced. No offence.

To clarify, the problem is in the user-defined hook:

    (add-hook 'latex-mode-hook (lambda()
				 (set (make-local-variable 'compile-command)
				      (concat "lualatex " (shell-quote-argument (buffer-file-name))))))

The hook does not work when (buffer-file-name) returns nil, which is
exactly what happens when Org mode tries to fontify the source block.
Org does it inside a temporary buffer not associated with any real file.

One way to fix the problem would be

    (add-hook 'latex-mode-hook (lambda()
                                 (when (buffer-file-name)
				 (set (make-local-variable 'compile-command)
				      (concat "lualatex " (shell-quote-argument (buffer-file-name)))))))

Best,
Ihor