[nodejs-fstream/f19] (3 commits) ...restrict to compatible arches

[T.C. Hollingsworth]

Summary of changes:

  b00d22a... add macro for EPEL6 dependency generation (*)
  d408a0b... invoke EPEL dependency generator macro conditionally to mak (*)
  232d42c... restrict to compatible arches (*)

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