why atlas for py-scipy?

Rainer Müller raimue at macports.org
Sat Jul 23 12:29:08 PDT 2011


On 2011-07-23 21:11 , Jack Howarth wrote:
>    Currently the default py26-scipy can't build on Lion due to the
> broken atlas build.

As a workaround use the +no_atlas variant.

> Why are we defaulting to atlas or the internal
> blas/lapack? Shouldn't we simply use the system lapack/blas on
> darwin instead?

Yep, that came up several times now [1][2], and atlas causes problems on
specific hardware [3].

At least we could use
    default_variants +no_atlas
for py*-scipy to avoid the dependency from which we do not gain much.

Rainer

[1]
http://lists.macosforge.org/pipermail/macports-dev/2010-April/011682.html
[2]
http://lists.macosforge.org/pipermail/macports-users/2010-June/020343.html
[3]
http://lists.macosforge.org/pipermail/macports-users/2011-March/023978.html


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