anchor.diff:    };
   
     nativeBuildInputs = [
  -    python2 pkgconfig autoconf automake yasm libtool m4
  -  ] ++ lib.optionals useGtk [ wrapGAppsHook intltool ];
  +    python2 pkgconfig autoconf automake cmake yasm libtool m4
  +  ] ++ lib.optionals useGtk [ intltool wrapGAppsHook ];
   
     buildInputs = [
       fribidi fontconfig freetype jansson zlib
  
positive.code: #
  
  { stdenv, lib, fetchurl,
    python2, pkgconfig, autoconf, automake, yasm, libtool, m4,
    fribidi, fontconfig, freetype, jansson, zlib,
    libass, libiconv, libsamplerate, libxml2, bzip2,
    ffmpeg_4, libtheora, x264, x265, libvpx, mpeg2dec,
  
negative.code:     libgudev hicolor-icon-theme
    ] ++ lib.optional useFdk fdk_aac;
  
    # NOTE: 2018-12-25: v1.2.0 now requires cmake dep
    # (default distribution bundles&builds 3rd party libs),
    # don't trigger cmake build
    dontUseCmakeConfigure = true;
    enableParallelBuilding = true;
  
    preConfigure = ''
  