rrdtool-1.7.2-8.fc33 fails to build in Fedora 33: + cp -p /usr/lib/rpm/config.guess /usr/lib/rpm/config.sub php4/ cp: cannot stat '/usr/lib/rpm/config.guess': No such file or directory cp: cannot stat '/usr/lib/rpm/config.sub': No such file or directory error: Bad exit status from /var/tmp/rpm-tmp.q807Yz (%prep) A difference between passing and failing build root is at <https://koschei.fedoraproject.org/build/8420839>. This is probably triggered by upgrading rpm-build from 4.15.90-0.git14971.12.fc33.1 to 4.16.0-0.beta1.1.fc33.1. The autoconf files can be copied from /usr/lib/rpm/redhat or regenerated with an autoreconf tool.