D: [iurt_root_command] chroot sh: line 4: [: -j8: integer expression expected sh: line 4: [: -j8: integer expression expected Installing /home/pterjan/rpmbuild/SRPMS/letterize-1.4-4.mga10.src.rpm Building target platforms: x86_64 Building for target x86_64 Executing(%prep): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.JS8bdJ + umask 022 + cd /home/pterjan/rpmbuild/BUILD + '[' 1 -eq 1 ']' + '[' 1 -eq 1 ']' + '[' 1 -eq 1 ']' + cd /home/pterjan/rpmbuild/BUILD + rm -rf letterize-1.4 + /usr/lib/rpm/rpmuncompress -x /home/pterjan/rpmbuild/SOURCES/letterize-1.4.tar.gz + STATUS=0 + '[' 0 -ne 0 ']' + cd letterize-1.4 + rm -rf /home/pterjan/rpmbuild/BUILD/letterize-1.4-SPECPARTS + /usr/bin/mkdir -p /home/pterjan/rpmbuild/BUILD/letterize-1.4-SPECPARTS + /usr/bin/chmod -Rf a+rX,u+w,g-w,o-w . + RPM_EC=0 ++ jobs -p + exit 0 sh: line 4: [: -j8: integer expression expected Executing(%build): /bin/sh -e /home/pterjan/rpmbuild/tmp/rpm-tmp.3BQZvW + umask 022 + cd /home/pterjan/rpmbuild/BUILD + cd letterize-1.4 + '[' 1 -eq 1 ']' + '[' 1 -eq 1 ']' + cc -O2 -g -pipe -Wformat -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -m64 -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection=full letterize.c -o letterize letterize.c:235:1: error: return type defaults to 'int' [-Wimplicit-int] 235 | main(int argc, char **argv) | ^~~~ error: Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.3BQZvW (%build) RPM build errors: Bad exit status from /home/pterjan/rpmbuild/tmp/rpm-tmp.3BQZvW (%build) I: [iurt_root_command] ERROR: chroot