[cross-gcc/f17] (3 commits) ...Add missing BuildRequires

[David Howells]

Summary of changes:

  5384cc5... Initial import (#766166). (*)
  05aa8ac... Fix fuzz levels on gcc47-ppl-0.10.patch. (*)
  c304a1d... Add missing BuildRequires (*)

(*) This commit already existed in another branch; no separate mail sent