bug#42452: 27.0.91; hollow box cursor sometimes leaves artifacts

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: radon.neon@gmail.com,  42452@debbugs.gnu.org
> Date: Sun, 16 May 2021 15:23:14 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > The problem is only on X, so the variable should be X-specific.  It is
> > not unheard of to have such debugging-related variables be
> > system-specific.
> 
> That's true -- and if it was purely a work-around, then I'd see no
> problems with adding the variable.  But in this case, we're talking
> about allowing customising the line width of the hollow cursor, which
> sounds like something that people might find useful in general.

No, we are talking about code that no one really understands why it's
needed, and why only on some systems.  Which means we also don't
understand whether it could have some adverse effects on some systems.