Re: Emacs 26: Code that fixes mouse-drag-and-drop-region to work across frames

[Tak Kunihiro]

>>>  I tried the revised `mouse-drag-and-drop-region' on Emacs -Q
>>>  26.0.90 on macOS 10.9.5. I can drag text within a frame but cannot
>>>  do so among frames. I think I miss something. Do you have idea?
>>
> ​I see the issue now; the standard Emacs code does not handle
> cross-frame drags well. Replace the mouse-set-point function from
> mouse.el with the version below

GNU Emacs 27.0.50 (build 1, x86_64-apple-darwin13.4.0, NS appkit-1265.21 
Version 10.9.5 (Build 13F1911)) of 2017-10-17
Emacs -Q

I cannot drag text among frames yet.  I think I still miss something.
Can you show recipe that starts from emacs -Q?