Paul Eggert <eggert@cs.ucla.edu> schrieb am Di., 6. Feb. 2018 um 00:56 Uhr:

On 02/05/2018 11:18 AM, Alan Third wrote:
>
> Yes, it fixes the problem here.
>
> Is this a known issue with macOS?

It's news to me and it's not listed in the Gnulib portability gotcha list.

What happens if you run the attached program on macOS? It creates a file
"file" and then tries to access it as a directory, which should not work.

It succeeds and prints nothing (i.e. the error is ENOTDIR in all cases).

So this is even more mysterious than I thought.