Subject: bug#48471: 28.0.50; Incorrect handling of `project-ignores' on macOS (BSD find?) if project root is a directory name

From: Dmitry Gutov <[email-masked]>
Date: Sun, 30 May 2021 14:14:45 +0300

On 30.05.2021 09:31, Eli Zaretskii wrote:
> It's in Posix, but I'm not sure how portable it is in practice.  Paul,
> Andreas, do you happen to know?
> 
> Perhaps for 100% portability we should probe for its support?

Since even the ancient BSD find on Macs supports it, I figured it's 
widespread enough. But if people say otherwise, I suppose we could add a 
probe.