Hi,
I created Copr repository with latest released Mock. It is built for all supported
platform. So you can e.g. try
mock-1.3 on RHEL6.
https://copr.fedorainfracloud.org/coprs/g/mock/mock-stable/
--
Miroslav Suchy, RHCA
Red Hat, Senior Software Engineer, #brno, #devexp, #fedora-buildsys