anchor.diff:      installFlags = buildFlags;
   
       meta = with lib; {
  -      homepage = "https://github.com/jbrundiers/vdr-plugin-markad";
  +      homepage = "https://github.com/kfb77/vdr-plugin-markad";
         description = "MarkAd marks advertisements in VDR recordings.";
         maintainers = [ maintainers.ck3d ];
         license = licenses.gpl2;
  
positive.code: { lib, stdenv, fetchurl, fetchgit, vdr, fetchFromGitHub
  , graphicsmagick, libav, pcre, xorgserver, ffmpeg
  , libiconv, boost, libgcrypt, perl, util-linux, groff, libva, xorg, ncurses
  , callPackage
  }: let
  
negative.code: 
    markad = stdenv.mkDerivation rec {
      pname = "vdr-markad";
      version = "3.0.25";
  
      src = fetchFromGitHub {
        repo = "vdr-plugin-markad";
        owner = "kfb77";
        sha256 = "sha256-m7cUAxwXj62spelHYH6uTIoViSavSR0d4psr7+KLJg8=";
        rev = "v${version}";
      };
  
      buildInputs = [ vdr ffmpeg ];
  
      postPatch = ''
        substituteInPlace command/Makefile --replace '/usr' ""
  