From Fedora Project Wiki

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Tracking Downstream

Use YUM

Install yum-utils and issue the following command to see what packages are using package "foo":

repoquery --whatrequires `repoquery --provides foo`

By activating all known third-party repositories in your YUM configuration, you will see all known dependencies on your package.