[gentoo-science] inconsistencies in blas/lapack/atlas support in portage

[gentoo-science] inconsistencies in blas/lapack/atlas support in portage

[Pablo De Napoli]

I've just filled a bug #131974
concerning the incosistencies in the current
support of blas/lapack/atlas in portage.

I understand that this situation perhaps arises because
we still have some obsolete packages in portage.

He is my bug report (expressing my opinion on 
this issue):

  Opened: 2006-05-01 19:39 PST 
  I think that blas/lapack/atlas support in portage
has several inconsistencies.

For example, there are three packages related
to atlas

sci-libs/atlas
sci-libs/blas-atlas
sci-libs/lapack-atlas

However. sci-libs/atlas does not provide 
blas neither lapack. And if I emerge, blas-atlas
and then lapack-atlas, I have to compile atlas
twice!. This is quit frustrating, since Atlas takes
a lot of time to compile.

The most reasonable thing would be to have just
one sci-libs/atlas package and that this package
provides both virtual/blas and virtual/lapack.

Another inconsistency is that we have both
sci-libs/blas and sci-libs/blas-reference
in portage. blas reference provides virtual/blas
but blas does not!

So I emerge blas, and it does not provide blas!
(what seems rather absurd to me)

(and what it is worst, the strange behavior of all 
this packages seems not to be documented anywhere)

best regards
Pablo De Napoli

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