Re: Gentlemen, start your engines...

[Daniel J S. <dan...@ie...>]

Hans-Bernhard Br=F6ker wrote:

>>What about the Gamma problem? Is Mac hurt by it or not?
>=20
>=20
> They're obviously hurt --- the question is what is the best solution we=
=20
> can offer, and whether Apple will ever fix their end of the problem.

How can we ask someone implementing C99 to manipulate a variable "signgam=
" when the C99 standard doesn't call out such a variable?  My understandi=
ng is that C99 uses tgamma() and lgamma() and there is no need for signga=
m.

The patch I offered handles this situation.  Priority goes to tgamma() an=
d lgamma() for the GAMMA() and LNGAMMA() use in specfun.c.  If they are n=
ot present then it falls back on lgamma_r() and gamma() (ln version) for =
GAMMA() and LNGAMMA() use in specfun.c.  If those aren't present, gnuplot=
 falls back on its own version of the routines.  The patch never uses sig=
ngam because this is not thread safe.  It's a very good patch, I believe.

Dan