Michael Albinus <michael.albinus@gmx.de> writes:

>>> Relative file names are not forbidden as part of exec-path. Shall we ban
>>> them (with an error message)? Or shall we ignore them, silently? Don't know.
>>>
>>> I'd vote for the latter (including proper documentation).
>>
>> Maybe executable-find should ignore them if default-directory is
>> remote?
>
> Or suppress file name handlers if the REMOTE arg is nil?

Thinking about, the appropriate solution is quoting `default-directory':