bug#49261: 28.0.50; File Locking Breaks Presumptuous Toolchains

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: michael.albinus@gmx.de,  ncaprisunfan@gmail.com,  49261@debbugs.gnu.org
> Date: Wed, 07 Jul 2021 20:17:22 +0200
> 
> Hm...  I think for simplicity's sake, it makes sense to always call the
> Lisp code.  Having two places where we insert ".#" into a file name just
> seems error prone, long term.

Btw, we could avoid having 2 places that produces the default
".#"+FILENAME lock file name by exposing to Lisp a C primitive which
does that.  So that problem can easily be solved.