Instead of hardcoding the current python version, use PYTHON3_VERSION
from the python package.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

Fix compilation under Fedora. There's some weird systemd target. Just
remove it.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Michal Vasilek <michal.vasilek@nic.cz>

Signed-off-by: Oskari Rauta <oskari.rauta@gmail.com>

Removes the BUILDONLY flag as otherwise no packages will be created.

Signed-off-by: Vincent Wiemann <vincent.wiemann@ironai.com>

Signed-off-by: Oskari Rauta <oskari.rauta@gmail.com>