I'm trying to build multimedia/vlc, which uses ffmpeg.  I've built
ffmpeg with additional options, such as faad and a52, which require
additional packages.  But vlc only requires ffmpeg and so breaks during
compilation -- the package doesn't know about the additional
dependencies.

How should (can?) this be handled?

Brian.

-- 
  Brian de Alwis | Software Practices Lab | UBC | http://www.cs.ubc.ca/~bsd/
      "Amusement to an observing mind is study." - Benjamin Disraeli