On 05/18/2018 03:22 AM, David Caldwell wrote:
> $ src/emacs -Q -batch -eval '(message "%S" (file-name-completion "pass"
> "."))'
> "passwd"

Thanks for checking that it works on OS X 10.10.

> Since this doesn't seem to match your hypothesis, do you still want me
> to try it with the "/./" patch you sent?

I wouldn't bother. If the bug is fixed in OS X 10.10 and Apple itself 
doesn't support older systems, then we shouldn't need to worry about 
this bug upstream. I suggest building Emacs for OS X 10.10, recommending 
10.10 (or later) builds to users, and warning that there may be glitches 
if people use builds for older systems. To document this I installed the 
attached into the emacs-26 branch.