On Fri, 09 Feb 2007 09:41:44 -0700, Jaap Spies <[EMAIL PROTECTED]> wrote:
> William Stein wrote:
>
>> Your error is related to building linbox, but I've never seen it on any of
>> them many systems I tested on, so I don't know how to fix it. (Building
>> linbox on a range of machines is really difficult.)
>>
>> What happens if you build from scratch? Does it then work fine, i.e., is
>> it an upgrade error only?
>
> This is a build from scratch.
Darn. The error:
> <type 'exceptions.ImportError'>:
> /home/jaap/downloads/sage-2.1/local/lib/python2.5/site-packages/sage/matrix/matrix_modn_dense.so:
> undefined symbol: dasum_
>
means that there is a function missing the BLAS (numerical linear algebra
system)
that SAGE is being built against. Could you send me the output of
ldd
/home/jaap/downloads/sage-2.1/local/lib/python2.5/site-packages/sage/matrix/matrix_modn_dense.so
If output points to libgslcblas, I'm clueless. If the output points to
a system-wide BLAS, the problem would then be that for some reason the
BLAS included in FC5 is missing at least one core standard function. Since
Linux vendors often do that sort of thing, that might be your problem.
If it is, a workaround is to instead use the GSL CBLAS for the time
being. (Doing this requires modifying the linbox package's build script.)
Anyways, let me know what ldd tells you.
-- William
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