anchor.diff: -{ stdenv, fetchFromGitHub, jdk, jre, ant, coreutils, gnugrep }:
  +{ stdenv, fetchFromGitHub, jdk, jre, ant, coreutils, gnugrep, file }:
   
   stdenv.mkDerivation rec {
   
  
positive.code:     cp -r ./build/linux/work/tools/ $out/share/arduino
      cp -r ./build/linux/work/lib/ $out/share/arduino
      echo ${version} > $out/share/arduino/lib/version.txt
    '';
  
    meta = {
  
negative.code:     sha256 = "0nr5b719qi03rcmx6swbhccv6kihxz3b8b6y46bc2j348rja5332";
    };
  
    buildInputs = [ jdk ant file ];
  
    buildPhase = ''
      cd ./core && ant 
  