[CentOS] Need help modding src.rpms to generate complete SAMBA AD DC binary RPMs for CentOS 8

When RHEL8 and CentOS8 were released, I was looking forward to setting
up SAMBA as a AD DC server for CentOS8. But when I lifed the hood on
the samba.spec file I found the option to build the samba-dc binary rpm
has been disabled for rhel family builds.

Apparently Red Hat does not want to support a unified SAMBA AD DC
environment. I believe we have all of the componentns needed to set up
a fully up-to-date samba-dc binary. But it's been decades since I last
rolled up my sleeves with my hardbound copy of "Maximum RPM" and built
custom binary rpms.

Has anyone already done this as a COPR or similar project? Failing
that, I'm willing to work with anyone with more up-to-date rpmbuild
tools to create and document the process.

--Doc Savage
  Fairview Heights, IL