bug#8789: 23.3; debug backtrace buffer changes window on step-through

[martin rudalics]

> It should IMHO be sufficient to add to the
>
>   (pop-to-buffer debugger-buffer)
>
> call in `debug' an action argument that ensures that always the same
> window is chosen, by an deterministic algorithm.  For example:
>
>   (pop-to-buffer debugger-buffer
>      '((lambda (buffer _)
>          (let ((first-win (frame-first-window)))
>            (select-window first-win)
>            (switch-to-buffer buffer)
>            first-win))))
>
> would always choose the first window for *Backtrace*.

Have you tried adding an according rule to `display-buffer-alist'?

martin