[HEADSUP] Atlas changed libraries

Susi Lehtola jussilehtola at fedoraproject.org
Sat Sep 28 12:14:55 UTC 2013

On Sat, 28 Sep 2013 12:59:13 +0200
Kevin Kofler <kevin.kofler at chello.at> wrote:

> I wrote:
> > The existing ATLAS setup (before the change) just worked!
> Actually, I just noticed the ATLAS packages we ship in F18 are also broken: 
> libblas.so.3 is missing, so if something links only -lblas, or links -lblas 
> before -llapack etc., it will get the unoptimized reference BLAS functions!

If you link to -lblas, you're shooting yourself in the leg in the first
place, since that's the reference implementation on current Fedoras. If
you want the ATLAS version of BLAS, you need to link -lf77blas -latlas.
Susi Lehtola
Fedora Project Contributor
jussilehtola at fedoraproject.org

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