scipy/scipy — pull request #149 by rgommers (2012-02-04 21:15:25+00:00)
Title: Disable Arpack (eigs, eigsh) single precision routines 

These are not only broken on 64-bit OS X, but have also been reported to either fail or hang on Linux. Therefore they should be disabled in master also until they're fixed.

Once this is reviewed, I also want to apply the same change to the 0.10.x branch for the soon-to-follow 0.10.1 release.