Ignore my previous post it was a bit more complicated than it should have been.
1. Just put the following file http://sage.math.washington.edu/home/jkantor/cvxopt-0.8.2.p1.spkg in spkg/standard 2. sage: install_package('cvxopt-0.8.2.p1') On Aug 2, 11:20 pm, Joshua Kantor <[EMAIL PROTECTED]> wrote: > Hello, > > The problem is that cvxopt does not by default link in gfortran which > apparently your libblas was compiled with. > (Incidentally what distribution is this and are you using custom > compiled blas/atlas or ones from a repository) > > To fix this try the following: > > 1. From your sage directory cd to spkg/standard > > 2. untar cvxopt-0.8.2.spkg > > $ tar -xjvf cvxopt-0.8.2*.spkg > > (replace the * by the exact version on your system) > > Next copy cvxopt-0.8.2*/src/src/setup.py to cvxopt-0.8.2*/patches > > Now retar the directory > > $ sage -spkg cvxopt-0.8.2*/ > > Now in sage do > > sage: install_packages('cvxopt-0.8.2*.spkg') > > This should recompile cvxopt so it links against gfortran > and now you should be able import anything. Let me know if this solves > your problem. > > Josh > > On Aug 2, 8:10 am, legout <[EMAIL PROTECTED]> wrote: > > > Hi William, > > > i´ll do so soon. > > > I could build sage with gcc-4.0. But there´s a problem with my > > libblas.so. > > If i try to import cvxopt, i´ve got the following error: > > > sage: import numpy > > sage: from cvxopt.base import spmatrix > > --------------------------------------------------------------------------- > > <type 'exceptions.ImportError'> Traceback (most recent call > > last) > > > /opt/sage/<ipython console> in <module>() > > > <type 'exceptions.ImportError'>: /usr/lib/libblas.so.3: undefined > > symbol: _gfortran_runtime_error > > sage: > > > As you can see, importing numpy was succsessfull. > > > volker > > > On 2 Aug., 11:16, "William Stein" <[EMAIL PROTECTED]> wrote: > > > > On 8/1/07, legout <[EMAIL PROTECTED]> wrote: > > > > > thanks for your answer. I already thought about the gcc-problem. And > > > > yes, i´m using gcc 4.2.1. > > > > I´ve just hoped, that this problem was fixed from 2.7 to 2.7.2 ;) > > > > Unfortunately not. It's really a linbox problem, and the linbox > > > developers > > > haven't been able to fix the problem yet. But I very much hope they do > > > soon. > > > > > Another question about ATLAS. I´ve installed it in /opt/atlas/ > > > > {lib,include}. How can i tell sage (numpy,scipy,linbox,...) to use > > > > this libraries? > > > > With luck you can do > > > export SAGE_BLAS="exact path to your blas" > > > then (re-)build numpy and linbox. > > > This unfortunately has not been well tested. > > > > -- > > > William Stein > > > Associate Professor of Mathematics > > > University of Washingtonhttp://www.williamstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://sage.math.washington.edu/sage/ and http://sage.scipy.org/sage/ -~----------~----~----~----~------~----~------~--~---
