./dune-common/bin/dunecontrol --opts=mycmake.opts make -j
```
Continue with the command mentioned above (from `installexternal.py`) but
always use `--opts=mycmake.opts` for `dunecontrol`.
If you cannot resolve installation-problems, write an email with the attached `installcourse.log` file to the dumux mailing list (dumux@listserv.uni-stuttgart.de).