@dheidler +%defattr(-,root,root) +BuildRoot: %{_tmppath}/%{name}-%{version}-build

isn't needed , try spec-cleaner on file +make %{?_smp_mflags} -- %make_build

@-miska-, @barravince112, @darix, @lmich, @marostegui, @mimi_vx, @mseben, @seilerphilipp, @toganm: review reminder