anchor.diff:      sha256 = "sha256-pV1xdQa5RBz17jDINC2uN1Q+jpa2edDwqTqf8D5VU3E=";
     };
   
  -  nativeBuildInputs = [ autoreconfHook pkg-config cunit file ];
  +  nativeBuildInputs = [ autoreconfHook pkg-config file ];
  +  checkInputs = [ cunit ncurses ];
   
     preConfigure = ''
       substituteInPlace ./configure --replace /usr/bin/file ${file}/bin/file
  
positive.code: { lib, stdenv, fetchFromGitHub
  , autoreconfHook, pkg-config
  , cunit, file
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:   outputs = [ "out" "dev" ];
  
    doCheck = true;
    enableParallelBuilding = true;
  
    meta = with lib; {
      homepage = "https://github.com/ngtcp2/nghttp3";
      description = "nghttp3 is an implementation of HTTP/3 mapping over QUIC and QPACK in C.";
      license = licenses.mit;
      platforms = platforms.unix;
      maintainers = with maintainers; [ izorkin ];
    };
  }
  