==Build a .src.rpm==
Use a machine configured to build RPMs, with the toplevel::server::pkgbuilder class, which nowadays is just rpmpackager1. In moco, see [[ReleaseEngineering/How_To/Start_RPM_Ubuntu_Packager_Instances]]and do: ssh rpmpackager1.srv.releng.use1.mozilla.com
The build infrastructure uses two types of rpm's: vanilla and customized for mozilla.