Comment 7 for bug 1667610

@hrvojem: We have an interal repo with packages which we build ourselves, libev is in that repo.

Building and adding another package to that repo is something we can do. So it is fine to add dependencies on epel packages to XtraBackup, but imho that should be done for a new major release and not a minor update. And it should be in the release notes. And not adding extra dependencies is preferred.