anchor.diff: -{ lib, stdenv, fetchFromGitHub, autoconf, automake, libtool
  +{ lib, stdenv, fetchFromGitHub, fetchpatch, autoconf, automake, libtool
   , pkg-config, faad2, faac, a52dec, alsaLib, fftw, lame, libavc1394
   , libiec61883, libraw1394, libsndfile, libvorbis, libogg, libjpeg
   , libtiff, freetype, mjpegtools, x264, gettext, openexr
  
positive.code:   '';
    enableParallelBuilding = true;
  
    buildInputs =
      [ automake
        autoconf libtool pkg-config file
        faad2 faac
        a52dec alsaLib   fftw lame libavc1394 libiec61883
        libraw1394 libsndfile libvorbis libogg libjpeg libtiff freetype
        mjpegtools x264 gettext openexr
  
negative.code:       libtheora libpng libdv libuuid
        nasm
        perl
        fontconfig
      ];
  
    meta = with lib; {
      description = "Video Editor";
      homepage = "https://www.cinelerra.org/";
      maintainers = with maintainers; [ marcweber ];
      license = licenses.gpl2Only;
    };
  }
  