bug#25946: 26.0.50; display-buffer ignores ignores reusable-frames in display-buffer-alist

[Jens Lechtenboerger]

On 2017-03-06, Stephen Berman wrote:

> On Sun, 05 Mar 2017 23:20:21 +0100 Michael Heerdegen
> <michael_heerdegen@web.de> wrote:
>
>> martin rudalics <rudalics@gmx.at> writes:
>>
>>> > I pushed it in your name as commit 702aeca.
>>>
>>> Wonderful.  Thank you very much.  Can you please test whether it DTRT?
>>> Two steps are needed. [...]
>>
>> Works as described for me in emacs -Q after rebuilding.
>
> Same here (I couldn't test till just now).

And here, many thanks.  (I did not rebuild Emacs in my previous
test.)

However, I'm having problems with LaTeX/AUCTeX [0] output buffers.
I'm currently using this obsolete (but working) setting:
(setq special-display-regexps '(".* output"))

Now, when replacing "\\*text\\*" with ".* output" in the above
recipe, compiling a tex file (C-c C-c), and pressing C-c C-l to
display the LaTeX output, a new frame gets created but is split in
half: The lower half showing the tex source (and containing the
cursor), the upper with output.  I expected the output in the entire
frame.

As this requires AUCTeX, I don't see a simple test case.
Besides, I won't have time for further tests this week.

Here is my basic configuration for emacs -Q (assuming that AUCTeX is
installed from ELPA via list-packages):

(package-initialize)
(load "auctex.el" nil t t)
(customize-set-variable 'display-buffer-alist
                        '((".* output"
                           (display-buffer-reuse-window 
display-buffer-pop-up-frame)
                           (reusable-frames . t))
                          ))
(setq display-buffer-mark-dedicated t)


Best wishes
Jens

[0] https://www.gnu.org/software/auctex/download.html