bug#62621: 29.0.60; uniquify can't make buffers unique based on things other than filename

[Eli Zaretskii <eliz@gnu.org>]

> Cc: sbaugh@janestreet.com, 62621@debbugs.gnu.org
> Date: Sat, 15 Jul 2023 08:42:06 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > From: sbaugh@catern.com
> > Date: Fri, 14 Jul 2023 19:15:50 +0000 (UTC)
> > Cc: Spencer Baugh <sbaugh@janestreet.com>, 62621@debbugs.gnu.org
> > 
> > Yes.  But how would you implement it so that setting the defcustom to
> > 'project causes the project-uniquify-dirname-transform logic to be used
> > by uniquify.el, without mentioning project-uniquify-dirname-transform or
> > other project functions in uniquify.el?
> 
> You can use autoloading, for example.  Or explicitly
> (require 'project) when that value is seen.  Or any
> number of other solutions we have for such situations.

Or even add a setter to this new defcustom which would set the
uniquify variable to a project-specific function, and you already had
that situation solved, right?

IOW, we have a lot of possible solutions for this kind of problems,
just select one of them.