display-buffer-reuse-frames tells Emacs to re-use frames for displaying buffers. However, as of 24.3 this variable is obsolete (emphasis mine):
display-buffer-reuse-frames is a variable defined in
Its value is t
Original value was nil
This variable is obsolete since 24.3; use a
reusable-framesalist entry in
display-buffershould reuse frames. If the buffer in question is already displayed in a frame, raise that frame.
I understand that I am supposed to replace that variable with
display-buffer-alist. I'm familiar with the latter, and use it at many different places in my configuration, but nonetheless this docstring is a mystery to me.
What entry exactly do I need to add to
display-buffer-alist to replicate this variable? IOW, what entry do I need to add to
display-buffer-alist to make Emacs reuse frames for all buffers, while still using the default display actions?
And please, dear Emacs developers, write less hand-wavy docstrings for obsolete options…