anchor.diff:  , cmsSupport         ? true,           lcms2
   , dvdnavSupport      ? stdenv.isLinux, libdvdnav
   , jackaudioSupport   ? false,          libjack2
  +, javascriptSupport  ? true,           mujs
   , libpngSupport      ? true,           libpng
   , openalSupport      ? true,           openalSoft
   , pulseSupport       ? config.pulseaudio or stdenv.isLinux, libpulseaudio
  
positive.code: , freetype
  , libass
  , libpthreadstubs
  , mujs
  , nv-codec-headers
  , lua
  , libuchardet
  
negative.code:     libpthreadstubs
      libuchardet
      luaEnv
    ] ++ lib.optionals alsaSupport        [ alsa-lib ]
      ++ lib.optionals archiveSupport     [ libarchive ]
      ++ lib.optionals bluraySupport      [ libbluray ]
  