anchor.diff:  
     cmakeFlags = [
       "-DENABLE_TESTING=OFF"
  +    "-DBUILD_ONLY=s3"
     ];
   
     meta = with stdenv.lib; {
  
positive.code: }:
  
  let
    version = "1.4.51";
  in
  stdenv.mkDerivation {
    name = "aws-sdk-cpp-${version}";
  
negative.code:     owner = "aws";
      repo = "aws-sdk-cpp";
      rev = version;
      sha256 = "42c5601d62c27acdc04eadbe34ac6dac4a066dd823e7194f3c3eade431d5b5fe";
    };
  
    nativeBuildInputs = [
  