[Fedora-packaging] How to build SRPMs for Rawhide from Fedora 12

[Manuel Wolfshant]

Edmon Begoli wrote:
> Hi,
>
> I am working on a Fedora 12 machine, but I would like to build Java
> packages for rawhide
> without necessarily enabling rawhide repository for all the system (it
> messes with the stable updates).
>
> How can I create an RPM build environment for rpmbuild that accesses
> all the dependencies available
> in rawhide without affecting the host?
>   
using mock is the best option that I know of.