Before upgrading macOS to Big Sur, I used to create a link in /usr/lib/ folder that pointed to rpm tools folder: sudo ln -s /usr/local/Cellar/rpm/{VERSION}/lib/rpm/ /usr/lib/rpm
which allowed me to build rpm: sbt rpm:packageBin (the rpmbuild is assuming the rpm tools are installed under /usr/lib/rpm)
In newer macOS, /usr/lib folder is read-only so I am unable to create the link. Is there a way to specify rpmbuild tools folder (overwrite the default)?