Re: [PATCH v16 00/14] Reftable support git-core

Junio C Hamano [off-list ref] writes:

I do not offhand know we also use fdopendir() elsewhere.  I strongly
suspect we do not.  Perhaps some platforms do POSIX.1-2001 but not
ready for POSIX.1-2008 or something silly like that?

Searching "macos fdopendir" gives a few hits from other projects,
all saying that before macOS 10.10 they did not have fdopendir()
and their code failed to build on macs.