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

[François Bissey]

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@××××××××××××.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

Francois