anchor.diff:  }:
   
   let
  -  version = "4.2.0";
  +  version = "4.3.1";
   
     libsecp256k1_name =
       if stdenv.isLinux then "libsecp256k1.so.0"
  
positive.code:     owner = "Groestlcoin";
      repo = "electrum-grs";
      rev = "refs/tags/v${version}";
      sha256 = "15n6snrs1kgdqkhp4wgs0bxxdz6mzl8dvf8h7s0jzc6r4b74vv3n";
    };
  
    nativeBuildInputs = lib.optionals enableQt [ wrapQtAppsHook ];
  
negative.code: 
    libzbar_name =
      if stdenv.isLinux then "libzbar.so.0"
      else if stdenv.isDarwin then "libzbar.0.dylib"
      else "libzbar${stdenv.hostPlatform.extensions.sharedLibrary}";
  
  in
  