Revision 310619

- Fixed OS detection on freebsd-ppc [1]
- Fixed ppc assembly language build error in embedded ffmpeg (tested on
  committer's Mac G4)

PR:		ports/172416
Submitted by:	michael copeland <michael@kryptos-security.com>
Approved by:	Thomas Zander <thomas.e.zander@googlemail.com> (maintainer)