anchor.diff:      suffixSalt
       targetPrefix
       baseBinName
  -  ;
  +    ;
   
  -  src = fetchPypi {
  -    inherit pname version;
  -    sha256 = "deb4163ef11f75b520d822d9505c1f462761b4309b1bb713d08689759ea8b899";
  +  src = fetchFromGitHub {
  +    owner = "matze";
  +    repo = "pkgconfig";
  +    rev = "v${version}";
  +    sha256 = "sha256-uuLUGRNLCR3NS9g6OPCI+qG7tPWsLhI3OE5WmSI3vm8=";
     };
   
  +  patches = [ ./executable.patch ];
  +
  +  postPatch = ''
  +    rm pkgconfig/pkgconfig.py.orig
  +    substituteInPlace pkgconfig/pkgconfig.py \
  +      --replace 'PKG_CONFIG_EXE = "pkg-config"' 'PKG_CONFIG_EXE = "${pkg-config}/bin/${pkg-config.targetPrefix}pkg-config"'
  +
  +    # those pc files are missing and pkg-config validates that they exist
  +    substituteInPlace data/fake-openssl.pc \
  +      --replace "Requires: libssl libcrypto" ""
  +  '';
  +
  +  nativeBuildInputs = [ poetry-core ];
   
     propagatedNativeBuildInputs = [ pkg-config ];
   
  -  doCheck = false;
  -
  -  patches = [ ./executable.patch ];
  -  postPatch = ''
  -    substituteInPlace pkgconfig/pkgconfig.py --replace 'PKG_CONFIG_EXE = "pkg-config"' 'PKG_CONFIG_EXE = "${pkg-config}/bin/${pkg-config.targetPrefix}pkg-config"'
  -  '';
  +  checkInputs = [ pytestCheckHook ];
   
     pythonImportsCheck = [ "pkgconfig" ];
   
  
positive.code: { lib, buildPythonPackage, fetchPypi, pkg-config }:
  
  buildPythonPackage rec {
    pname = "pkgconfig";
    version = "1.5.5";
  
    inherit (pkg-config)
      setupHooks
  
negative.code:     description = "Interface Python with pkg-config";
      homepage = "https://github.com/matze/pkgconfig";
      license = licenses.mit;
      maintainers = with maintainers; [ SuperSandro2000 ];
    };
  }
  