http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47692
--- Comment #16 from Harald Anlauf <anlauf at gmx dot de> 2012-06-25 20:26:27 UTC --- (In reply to comment #15) > I just received a message saying: > > "The problem with the BLAS testing programs sometimes not computing the > machine > epsilon correctly has been fixed in revision r1224, available in the LAPACK > SVN > repository (https://icl.cs.utk.edu/svn/lapack-dev/lapack/trunk)." It appears that these fixes are in LAPACK-3.4.1, released in April 2012. The failures I've seen in the BLAS testing have disappeared. John, can you test that the new LAPACK version works for you?