Philipp Stephani <p.stephani2@gmail.com> schrieb am Di., 6. Feb. 2018 um 23:07 Uhr:

Philipp Stephani <p.stephani2@gmail.com> schrieb am Di., 6. Feb. 2018 um 01:26 Uhr:

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. 

However, when I change "file" to "/usr/bin/true" in the names list, the issue happens again (i.e. lstat and faccessat succeed for "/usr/bin/true/."). So this does appear to be a macOS bug, but it's not consistently reproducible.

The issue also goes away if I change the fourth argument of faccessat to 0.