Re: PR/57807 CVS commit: src/sys/sys

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Wed, 25 Sep 2024 22:29:53 +0000
    From:        Taylor R Campbell <riastradh%NetBSD.org@localhost>
    Message-ID:  <20240925222957.A369A84D21%mail.netbsd.org@localhost>

  | If christos's change doesn't fix it, can you find where _NETBSD_SOURCE
  | is getting defined so we can fix that too?

It gets defined in <sys/featuretest.h> when none of the other
relevant symbols (_POSIX_C_SOURCE etc) are defined.

Things like the old gmake that are built as a tool don't define
any of those, so get __NetBSD_SOURCE ... we cannot really simply
pick one of the others to define for things like this, as there's
no particular reason they all need the same one.

kre