D: [iurt_root_command] chroot
Building target platforms: x86_64
Building for target x86_64
sh: line 4: [: -j8: integer expression expected
sh: line 4: [: -j8: integer expression expected
Wrote: /home/pterjan/rpmbuild/SRPMS/python-black-hole-solver-0.2.3-6.mga10.src.rpm
D: [iurt_root_command] Success!