#14406: Various prereq fixes
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Reporter: jdemeyer | Owner: drkirkby
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.9
Component: porting | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Jeroen Demeyer | Merged in:
Dependencies: | Stopgaps:
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Comment (by jpflori):
Replying to [comment:27 leif]:
> Replying to [comment:26 jpflori]:
> > Replying to [comment:23 leif]:
> > > So what's your conclusion? (Regardless of perhaps cheating on
FreeBSD as well.)
> > Don't really know.
> > Check for sqrtl, logl, tgammal and lgammal everywhere except where:
> > * we cheat, which is currently Cygwin,
> > * we install Cephes, which is currently FreeBSD.
> > And if that fails, rant that supported platform should provide "long
double" functions (except for the the two categories filtered out above)
and suggest:
> > * setting SAGE_PORT to something non-empty,
> > * and:
> > * either try installing the Cephes spkg,
> > * or cheating as on Cygwin.
>
> + * switch to another OS
>
> + Provide a link to the C99 standard.
>
> [[BR]]
>
> > Both of these will be non-trivial anyway.
>
> Really?
Depends on who tries it...
* Cheating as on Cygwin is easy if you know where to look, although you
should know a little bit of Sage to modify the R spkg, but I somehow agree
it is not a long term solution, we don't want to patch every part of Sage
which at some point will use "long double" functions... but then we can
hope that Cygwin also include these functions in their libm, as they did
for the "complex" functions, if every piece of software in the world need
them.
* Don't really know if installing Cephes just works out of the box, i.e.
"oh I have a non-C99 compliant libm, let's just install cephes and every
piece of Sage looking for C99 libm functions will find them now", that's
surely the case but I've never tried.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14406#comment:28>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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