[SciPy-user] linalg error in cvs update

Pearu Peterson pearu at scipy.org
Thu Sep 23 10:38:16 CDT 2004

On Thu, 23 Sep 2004, Christopher Fonnesbeck wrote:

> I just updated my cvs install on a redhat machine, and got the following 
> error from the linalg package:
>  ...
>  File "/usr/lib/python2.3/site-packages/scipy/linalg/blas.py", line 13, in ?
>    import fblas
> ImportError: /usr/lib/python2.3/site-packages/scipy/linalg/fblas.so: 
> undefined symbol: srotmg_
> I have not seen this one before. Any ideas?

Quote from INSTALL.txt:
BLAS sources shipped with LAPACK are incomplete
Some distributions (e.g. Redhat Linux 7.1) provide BLAS libraries that
are built from such incomplete sources and therefore cause import
errors like

   ImportError: .../fblas.so: undefined symbol: srotmg_

   Use ATLAS or the official release of BLAS libraries.


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