anchor.diff:      libbluray
       libbs2b
       libcaca
  -    #libcdio
  +    libcdio-paranoia
       libdrm
       libdvdnav
       libdvdread
  
positive.code: , libbluray
  , libbs2b
  , libcaca
  #, libcdio
  , libdrm
  , libdvdnav
  , libdvdread
  
negative.code:     "--${boolEn (
        libdvdnav != null
        && libdvdread != null)}-dvdnav"
      "--${boolEn (libcdio-paranoia != null)}-cdda"
      #"--${boolEn ( != null)}-uchardet"
      "--${boolEn (rubberband != null)}-rubberband"
      "--${boolEn (lcms2 != null)}-lcms2"
  