Bug#569436: [Pkg-scicomp-devel] Bug#569436: Bug#569436: lapack: zgesvd seems to give incorrect results

[Sylvestre Ledru]

> > Since SVD is something I consider very important, I would request you
> > to please re-upload Blas with an optimization level of -O2, so that
> > things remain sane with all the reverse dependencies.
> OK, thank for your investigation. I will do that then.
I had a look and the problem is that blas is compiled by default with
-03. I am afraid of switching to -02 decreases the performance on a key
component...
However, I have a few leads:
* disable optimisation for just this file
* see if forcing gcc-4.3 brings back the initial behavior
* report upstream (which I will probably have to do anyway)

Sylvestre