%m, #614

[Gary E. Miller]

Yo Achim!

On Tue, 27 Aug 2019 19:42:30 +0200
Achim Gratz via devel <devel at 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
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588

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    "If you can't measure it, you can't improve it." - Lord Kelvin
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