#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:50 jpflori]:
> Replying to [comment:48 jdemeyer]:
> > Replying to [comment:46 jpflori]:
> > > That would be:
> > > * check for sqrtl.
> > > * if not available trigger installation of the cephes spkg.
> > And how would a prereq check "trigger" the installation of the cephes
spkg? I don't think that can currently be done.
> I thought we could do that just like you do for GCC.
> But that might be impossible, i did not check.
Just a little more details of the way I see this, but that may be wrong:
* at prereq time (or whenever the gcc version checks are done), set an env
variable if the test fails (or the user can override it if he wants),
* then either our spkg system is smart enough to build the cephes spkg iff
this variable is set, or the spkg-install script from cephes spkg checks
its value by itself and decide whether it should build or not (just like
it now checks it is running on FreeBSD).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14406#comment:51>
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