Bug#702460: openblas: does not revert atlas lapack alternative

[Julian Taylor]

Package: openblas
Version: 0.1.1-6
Severity: normal

installing atlas and the openblas changes the alternative to openblas as
it has higher priority.
but atlas also changes the lapack alternative to its own.
This leads to usr/lib/liblapack.so having undefined references to atlas
extensions

apt-get install libatlas3-base
apt-get install libopenblas-base
ldd -r /usr/lib/liblapack.so.3
...
undefined symbol: ATL_dpttrmm	(/usr/lib/liblapack.so.3)