Yo Achim! On Tue, 27 Aug 2019 19:42:30 +0200 Achim Gratz via devel <devel@ntpsec.org> wrote:
> Gary E. Miller via devel writes:
> > _GNU_SOURCE should not always be defined, but it does need to be
> > defined in certain cases. For example, on glibc < 2.10, you need
> > to define it to get strnlen() and struct ifreq.
>
> In that case, you need to be prepared for changed semantics in several
> places and I don't think ntpsec is set up to deal with that.
Changed semantics? No. Simple existence of the prototpe is at stake.
> > From glibc 2.10, you instead need _POSIX_C_SOURCE >= 200809L
>
> Well, if that's the ABI you are de-facto targeting, then make this the
> requirement.
It is one of the choices. NTPsec, and gpsd, try to be flexible to what
is available, not the other way around.
RGDS
GARY
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