D: [iurt_root_command] chroot
Building target platforms: x86_64
Building for target x86_64
sh: line 4: [: -j8: integer expected
Installing /home/pterjan/rpmbuild/SRPMS/opencpn-5.12.4-1.mga10.src.rpm
Executing(%mkbuilddir): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.FilCFb
sh: line 4: [: -j8: integer expected
Executing(%prep): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.ZoP02Y
+ umask 022
+ cd /home/pterjan/rpmbuild/BUILD/opencpn-5.12.4-build
+ '[' 1 -eq 1 ']'
+ '[' 1 -eq 1 ']'
+ '[' 1 -eq 1 ']'
+ cd /home/pterjan/rpmbuild/BUILD/opencpn-5.12.4-build
+ rm -rf OpenCPN-Release_5.12.4
+ /usr/lib/rpm/rpmuncompress -x -v /home/pterjan/rpmbuild/SOURCES/OpenCPN-Release_5.12.4.tar.gz
 /usr/bin/gzip -dc  '/home/pterjan/rpmbuild/SOURCES/OpenCPN-Release_5.12.4.tar.gz' | /usr/bin/tar -xvvof - 
error: Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.ZoP02Y (%prep)

RPM build errors:
    Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.ZoP02Y (%prep)
I: [iurt_root_command] ERROR: chroot