bug#24581: 25.1 crash in ns_scroll_run after closing a frame

[Alan Third <alan@idiocy.org>]

On Thu, Aug 13, 2020 at 04:51:35PM -0400, Win Treese wrote:
> 
> 
> > On Aug 13, 2020, at 2:46 PM, Alan Third <alan@idiocy.org> wrote:
> > 
> > Hi Win,
> > 
> > What version of Emacs is Aquamacs based on? Is it still Emacs 25?
> 
> Hi, Alan. 
> 
> Yes. The current version of Aquamacs (3.5) is based on Emacs 25.3.50.1.
> 
> My current plan (if you’re interested ) is to try fixing several of the
> known bugs that are getting in people’s way, ship that as 3.6, and then
> roll the code base forward to catch up with the current Emacs release.
> 
> I’ll probably do that by merging onto the earlier releases so that it’s
> easier to understand the changes at each point, and along the way I
> hope to decrease the amount of Aquamacs-specific code where we can.

I was just cleaning up my inbox and found this and remembered I wanted
to say something.

It may not be fully worth your while trying to merge into later Emacs
26 and Emacs 27 releases because we changed the way it draws to the
screen to try and work around some deprecations in macOS 10.14.

Most of those changes have been undone in the master branch and
another approach used which is more like how drawing was done in Emacs
25.

It may not actually matter to you, as I suspect you're probably not
changing that much about how things are drawn, but I don't want you to
waste your time trying to get things working with the Emacs 26/27 drawing
path only to have to undo it for Emacs 28.
-- 
Alan Third