anchor.diff:  , fontconfig, intltool }:
   
   stdenv.mkDerivation {
  -  name = "cinelerra-cv-2018-05-16";
  +  name = "cinelerra-cv-2021-02-14";
   
     src = fetchFromGitHub {
       owner = "cinelerra-cv-team";
       repo = "cinelerra-cv";
  -    rev = "d9c0dbf4393717f0a42f4b91c3e1ed5b16f955dc";
  -    sha256 = "0a8kfm1v96sv6jh4568crg6nkr6n3579i9xksfj8w199s6yxzsbk";
  +    rev = "7d0e8ede557d0cdf3606e0a8d97166a22f88d89e";
  +    sha256 = "0n84y2wp47y89drc48cm1609gads5c6saw6c6bqcf5c5wcg1yfbj";
     };
  -
  -  patches = [
  -    # avoid gcc10 error about narrowing
  -    (fetchpatch {
  -      url = "https://github.com/cinelerra-cv-team/cinelerra-cv/pull/2/commits/a1b2d9c3bd5730ec0284894f3d81892af3e77f1f.patch";
  -      sha256 = "1cjyv1m174dblpa1bs5dggk24h4477zqvc5sbfc0m5rpkndx5ycp";
  -    })
  -  ];
   
     preConfigure = ''
       find -type f -print0 | xargs --null sed -e "s@/usr/bin/perl@${perl}/bin/perl@" -i
  
positive.code:     ];
  
    meta = with lib; {
      description = "Video Editor";
      homepage = "https://www.cinelerra.org/";
      maintainers = with maintainers; [ marcweber ];
      license = licenses.gpl2Only;
    };
  
negative.code: { lib, stdenv, fetchFromGitHub, autoconf, automake, libtool
  , pkg-config, faad2, faac, a52dec, alsaLib, fftw, lame, libavc1394
  , libiec61883, libraw1394, libsndfile, libvorbis, libogg, libjpeg
  , libtiff, freetype, mjpegtools, x264, gettext, openexr
  