anchor.diff:      owner = "symless";
       repo = "synergy";
       rev = "v${version}-stable";
  -    sha256 = "03d7c046138c57e2c1c404a3209c86307aa88d3d9fed3824d86f50e2311a8cf3";
  +    sha256 = "8301b2851089ad74c882c0d25586e010e64378d9061f8acc9c4ed8440c5bf84e";
     };
   
     nativeBuildInputs = [
  
positive.code:   buildInputs = [
      curl
      googletest
      openssl
      xorg.fixesproto
      xorg.inputproto
      xorg.kbproto
  
negative.code: 
  , curl
  , googletest
  , openssl_1-0-2
  , xorg
  }:
  
  let
    version = "1.8.7";
  in
  stdenv.mkDerivation {
    name = "synergy-${version}";
  