anchor.diff:      $out/bin/unbound-anchor -l | head -1 > $out/etc/${pname}/root.anchor
       $out/bin/unbound-anchor -l | tail --lines=+2 - > $out/etc/${pname}/root.key
       # We don't need anything else
  -    rm -fR $out/bin $out/share $out/include $out/etc/unbound
  +    rm -r $out/bin $out/share $out/include $out/etc/unbound
     ''
     # patchelf is only available on Linux and no patching is needed on darwin
     + lib.optionalString stdenv.isLinux ''
  
positive.code: 
    buildInputs = [ openssl expat libevent python ];
  
    postPatch = ''substituteInPlace Makefile.in \
      --replace "\$(DESTDIR)\$(PYTHON_SITE_PKG)" "$out/${python.sitePackages}" \
      --replace "\$(LIBTOOL) --mode=install cp _unbound.la" "cp _unbound.la"
    '';
  
    preConfigure = "export PYTHON_VERSION=${python.pythonVersion}";
  
negative.code:     cp .libs/_unbound.so .libs/libunbound.so* $out/${python.sitePackages}
      substituteInPlace _unbound.la \
        --replace "-L.libs $PWD/libunbound.la" "-L$out/${python.sitePackages}"
    '';
  
    installFlags = [
      "configfile=\${out}/etc/unbound/unbound.conf"
  