D: [iurt_root_command] chroot
Building target platforms: x86_64
Building for target x86_64
sh: line 4: [: -j8: integer expression expected
Installing /home/pterjan/rpmbuild/SRPMS/spacefm-1.0.6-7.mga10.src.rpm
Executing(%mkbuilddir): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.QRc3H0
sh: line 4: [: -j8: integer expression expected
Executing(%prep): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.UhpcOY
+ umask 022
+ cd /home/pterjan/rpmbuild/BUILD/spacefm-1.0.6-build
+ '[' 1 -eq 1 ']'
+ '[' 1 -eq 1 ']'
+ '[' 1 -eq 1 ']'
+ cd /home/pterjan/rpmbuild/BUILD/spacefm-1.0.6-build
+ rm -rf spacefm-1.0.6
+ /usr/lib/rpm/rpmuncompress -x /home/pterjan/rpmbuild/SOURCES/spacefm-1.0.6.tar.gz
error: Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.UhpcOY (%prep)

RPM build errors:
    Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.UhpcOY (%prep)
I: [iurt_root_command] ERROR: chroot