Arash Esbati <arash@gnu.org> writes:

> Arne, we have a bug report for AUCTeX where I found that the function
> `latexenc-find-file-coding-system' can't deal with `TeX-master' or
> `tex-main-file' set to a constant string in the init file and not as
> file local variable.  I'm not really familiar with your code, but the
> following small change is reported to fix the issue, at least for
> AUCTeX:

My apologies, my last proposal was broken, please consider the one
attached.

Best, Arash