with the recent libsanitizer update, libasan and libtsan got a dependency on
libstdc++.so.6, however when installing into an empty directory, and
libstdc++.so.6 isn't installed there first, both libasan and libtsan are
relinked against the system libstdc++.so.6. So make sure that libstdc++-v3 is
installed first.

ok for the trunk?

  Matthias