anchor.diff:  , freetype
   , libass
   , libpthreadstubs
  -, mujs
   , nv-codec-headers
   , lua
   , libuchardet
  
positive.code:     (lib.enableFeature archiveSupport  "libarchive")
      (lib.enableFeature cddaSupport     "cdda")
      (lib.enableFeature dvdnavSupport   "dvdnav")
      (lib.enableFeature openalSupport   "openal")
      (lib.enableFeature sdl2Support     "sdl2")
      (lib.enableFeature sixelSupport    "sixel")
  
negative.code:     libpthreadstubs
      libuchardet
      luaEnv
    ] ++ lib.optionals alsaSupport        [ alsa-lib ]
      ++ lib.optionals archiveSupport     [ libarchive ]
      ++ lib.optionals bluraySupport      [ libbluray ]
  