1 Jun 17:48 2011

### Re: sci-libs/scipy-0.9.0-r1 undefined symbol: clapack_sgesv

Marc Vinyals <marcvinyals <at> velodius.com>

2011-06-01 15:48:46 GMT

2011-06-01 15:48:46 GMT

EL Wed, 1 Jun 2011 06:57:03 +1200 Francois Bissey <fbissey <at> slingshot.co.nz> escrigué: > > Hi, > > > > While updating sage and python to 4.7 and 2.7, I hit a variation of > > an old bug (see http://bugs.gentoo.org/195619): scipy compiles with > > lapack-reference but is unusable. Running in python > > > > import scipy.optimize > > > > fails with > > > > [...] > > from scipy.linalg import clapack > > ImportError: /usr/lib64/python2.7/site-packages/scipy/linalg/clapack.so: > > undefined symbol: clapack_sgesv > > > > I tried rebuilding numpy and scipy with lapack provided (eselect) by > > lapack-reference, blas provided by blas-reference, cblas provided by > > gsl and with/without clapack with the same result. > > > > Then I tried rebuilding numpy and scipy with lapack, blas and cblas > > provided (eselect) by atlas and scipy worked flawlessly. > > > > Should scipy depend on a specific lapack provider instead of a > > virtual? Enable it at compile time? Is it an unfortunate > > combination what fails? > > > > I can provide build logs if you need them.(Continue reading)