Spec file creates the following packages: * mu: The main email indexer, with mu4e included for emacs * mu-gtk: with the mug executable * mu-guile: with the bindings for guile As per the Fedora Packaging Guidelines, there should not be a separate emacs-mu package if the main package (mu) does not require emacs, but it provides additional files for its use with emacs. I think that's the point of mu4e.