Packaging BLIS

[Ludovic Courtès]

Hello,

Dave Love <address@hidden> skribis:

> Ludovic Courtès <address@hidden> writes:

[...]

>> >> One example which has been investigated, and you can't, is BLIS.  You
>>
>> (Why “you can’t?”  It’s free software AFAICS on
>> <https://github.com/flame/blis/tree/master>.)
>
> Well, you could embark on some sort of (GCC-specific?) re-write, but it
> would be better to work on <https://github.com/flame/blis/issues/129>.
> I don't think there's anywhere you can just attach GCC attributes, and
> certainly no magic will happen for currently-unsupported architectures.

That caught my attention so I packaged BLIS:

  
https://git.savannah.gnu.org/cgit/guix.git/commit/?id=5a7deb117424ff4d430b771b50e534cf065c0ba1

There are several “flavors” of BLIS, so you can always rebuild your
favorite program with:

  --with-input=openblas=blis-haswell

and similar (or even ‘--with-graft=blis=blis-haswell’ where applicable).

Hopefully the issue you linked to above will be fixed in future versions
of BLIS, at which point we can probably provide a single “blis” package.

Ludo’.