anchor.diff: -{ fetchFromGitHub, stdenv, ffmpeg_3, cmake, libpng, pkgconfig, libjpeg
  +{ fetchFromGitHub, stdenv, ffmpeg_3, cmake, libpng, pkg-config, libjpeg
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:     sha256 = "1bakbr714j7yxdal1f5iq0gcl4cxggbbgj227ihdh5kvygqlwich";
    };
  
    nativeBuildInputs = [ cmake pkgconfig ];
    buildInputs = [ ffmpeg_3 libpng libjpeg ];
  
    meta = with stdenv.lib;  {
      homepage = "https://github.com/dirkvdb/ffmpegthumbnailer";
      description = "A lightweight video thumbnailer";
      longDescription = "FFmpegthumbnailer is a lightweight video 
          thumbnailer that can be used by file managers to create thumbnails
          for your video files. The thumbnailer uses ffmpeg o decode frames
          from the video files, so supported videoformats depend on the
  
negative.code:         The only dependencies are ffmpeg and libpng.
      ";
      platforms = platforms.linux;
      license = licenses.gpl2Plus;
      maintainers = [ maintainers.jagajaga ];
    };
  
  