Re: [gentoo-science] blas selection in lapack-reference

[Reinis Danne <rei4dan@gmail.com>]

On Wed, Jan 22, 2014 at 10:54:48PM +1300, François Bissey wrote:
> On 2014-01-22 22:47, Reinis Danne wrote:
> > On Tue, Jan 21, 2014 at 07:47:48PM -0600, Steven Trogdon wrote:
> >> On Wed, 22 Jan 2014 13:52:57 +1300
> >> François Bissey <fbissey@slingshot.co.nz> wrote:
> >> 
> >> > We have yet another instance of someone emerging lapack-reference
> >> > without
> >> > a valid blas configuration in
> >> > https://bugs.gentoo.org/show_bug.cgi?id=498490
> >> > (not their original problem).
> >> > I think we should do something about this in lapack-reference and
> >> > possibly
> >> > other ebuilds.
> >> > In pkg_setup, we could run
> >> > eselect blas update
> >> > to make sure that a valid configuration is active
> >> > and display an informational message about the blas provider
> >> > used with the output of
> >> > eselect blas show
> >> >
> >> > Who thinks is a good/bad idea?
> >> >
> >> > Francois
> >> >
> >> 
> >> For one, I'm in favor of something like this - though I probably don't 
> >> have
> >> much say in the matter. I've been bitten by not eselecting {blas, 
> >> cblas,
> >> lapack} after an upgrade. And I've even posted on this forum the 
> >> problem.
> >> 
> >> http://article.gmane.org/gmane.linux.gentoo.science/1915
> >> http://article.gmane.org/gmane.linux.gentoo.science/1916
> >> 
> >> I resolved things, quite accidently, by re-eselecting the important
> >> components which were eselected before the upgrade.
> >> 
> >> Steve
> >> 
> > 
> > I fixed provider selection during upgrades in overlay
> > (yesterday). Now it should have valid provider set at any time.
> > With that do you still think it would need this extra eselect
> > update in ebuild?
> > 
> > 
> It seems that the difficult point is when you go from no provider 
> available
> to one provider available. If that case is fixed then: No

That case also works.


Reinis