anchor.diff:    ];
   
     configureFlags = [
  -    "--sysconfdir=/etc/frr"
  +    "--disable-exampledir"
  +    "--enable-configfile-mask=0640"
  +    "--enable-group=frr"
  +    "--enable-logfile-mask=0640"
  +    "--enable-multipath=64"
  +    "--enable-snmp"
  +    "--enable-user=frr"
  +    "--enable-vty-group=frrvty"
       "--localstatedir=/run/frr"
       "--sbindir=$(out)/libexec/frr"
  -    "--disable-exampledir"
  -    "--enable-user=frr"
  -    "--enable-group=frr"
  -    "--enable-configfile-mask=0640"
  -    "--enable-logfile-mask=0640"
  -    "--enable-vty-group=frrvty"
  -    "--enable-snmp"
  -    "--enable-multipath=64"
  +    "--sysconfdir=/etc/frr"
     ];
   
     postPatch = ''
  -    substituteInPlace tools/frr-reload --replace /usr/lib/frr/ $out/libexec/frr/
  +    substituteInPlace tools/frr-reload \
  +      --replace /usr/lib/frr/ $out/libexec/frr/
     '';
   
     doCheck = true;
  +
     checkInputs = [
       nettools
  -    python3Packages.pytest
  +    python3.pkgs.pytest
     ];
   
     enableParallelBuilding = true;
   
  -  passthru.tests = { inherit (nixosTests) frr; };
  -
     meta = with lib; {
  +    homepage = "https://frrouting.org/";
       description = "FRR BGP/OSPF/ISIS/RIP/RIPNG routing daemon suite";
       longDescription = ''
         FRRouting (FRR) is a free and open source Internet routing protocol suite
  
positive.code:       infrastructure, web 2.0 businesses, hyperscale services, and Fortune 500
        private clouds.
      '';
      homepage = "https://frrouting.org/";
      license = with licenses; [ gpl2Plus lgpl21Plus ];
      platforms = platforms.unix;
      maintainers = with maintainers; [ woffs ];
    };
  }
  
negative.code:     flex
      perl
      pkg-config
      python3.pkgs.sphinx
      texinfo
    ];
  
  