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To: python@FreeBSD.org
Subject: maintainer-feedback requested: [Bug 203638] math/py-numpy: Undefined
symbol "cblas_sgemm"
Date: Thu, 08 Oct 2015 12:04:41 +0000
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Philip Homburg <pch-freebsd-bugs@u-1.phicoh.com> has reassigned Bugzilla
Automation <bugzilla@FreeBSD.org>'s request for maintainer-feedback to
python@FreeBSD.org:
Bug 203638: math/py-numpy: Undefined symbol "cblas_sgemm"
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203638
--- Description ---
numpy version py27-numpy-1.10.0,1 on FreeBSD 10.2. Configured with NETLIB as
the BLAS library
>>> import numpy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/site-packages/numpy/__init__.py", line 180, in
<module>
from . import add_newdocs
File "/usr/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13,
in <module>
from numpy.lib import add_newdoc
File "/usr/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 8,
in <module>
from .type_check import *
File "/usr/local/lib/python2.7/site-packages/numpy/lib/type_check.py", line
11, in <module>
import numpy.core.numeric as _nx
File "/usr/local/lib/python2.7/site-packages/numpy/core/__init__.py", line
14, in <module>
from . import multiarray
ImportError: /usr/local/lib/python2.7/site-packages/numpy/core/multiarray.so:
Undefined symbol "cblas_sgemm"
The cause seems to be that numpy links with blas, but uses symbols from cblas.
Getting numpy to link with cblas solves the problem.