[$] Rethinking Fedora's compiler policy

Now that the Fedora 34 release is out the door, the Fedora project isturning its attention to Fedora 35, which is currently scheduledfor release on October 26. One of the changes under consideration forFedora 35 is thisproposal allowing maintainers to choose whether to build their packageswith GCC or Clang. This policy change may give maintainers some welcomeflexibility, but it has not proved entirely popular in the Fedoracommunity.