[Numpy-discussion] Forcing the use of unoptimized blas/lapack even when atlas is present

Hi there, I am developing a building tool to automatically build the whole numpy/scipy/matplotlib set from sources including dependencies, and one of the problem I got is to force which blas/lapack version to use when building numpy and scipy. I thought that doing a BLAS=blaslib LAPACK=lapacklib python setup.config was enough when build numpy, but numpy still wants to use atlas. I would like to avoid using site.cfg if possible, as I want to build everything automatically, cheers, David