NetBSD 6.1.5 doesn't have ldexpl in math.h

[Gary E. Miller]

Yo Hal!

On Thu, 07 Sep 2017 01:37:30 -0700
Hal Murray <hmurray at megapathdsl.net> wrote:

> > Got a workaround?   
> 
> This seems to build and check:
> #include <math.h>       /* ldexpl() */
> #ifndef ldexpl
>   /* Missing in NetBSD 6.1.5 */
>   #define ldexpl ldexp
> #endif
> 
> Will that do the right conversions between double and long double?

Serious loss of precision, but maybe the best we can do.

> Do we want to work with old but still supported NetBSD or be sticky
> about requiring C99?

You brougth it up.  If yuo don't care we can drop that version of NetBSD.

> Eric:  Do we have a list of OSes and hardware where ntpsec is known
> to build and work?

buildbot.ntpsec.org.

> grep does find this in /usr/include/g++/cmath
>   inline long double
>   ldexp(long double __x, int __exp)
>   { return __builtin_ldexpl(__x, __exp); }

Is __builtin_ldexpl() defined anywhere?

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
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