[Samba] Building samba for Ubuntu 18.04

[Jonathan Kreider]

I would like to develop my own ability to build samba for Ubuntu. The
Ubuntu packages are woefully out of date.

My main question is whether I should build samba with the same
configuration options as the Ubuntu packages, or use the default samba
configuration. Mostly I'm concerned about the paths.

Also, I would build the full version of samba with AD DC and member server
capabilities FWIW.

Thanks