anchor.diff:    outputs = [ "out" "dev" ];
   
     makeFlags = [
  -    "DESTDIR="
  -    "LIBDIR=$(out)/lib"
  +    "PREFIX=$(out)"
       "SBINDIR=$(out)/sbin"
  -    "MANDIR=$(out)/share/man"
  -    "BASH_COMPDIR=$(out)/share/bash-completion/completions"
       "DOCDIR=$(TMPDIR)/share/doc/${pname}" # Don't install docs
       "HDRDIR=$(dev)/include/iproute2"
     ];
  
positive.code:     "CONFDIR=$(out)/etc/iproute2"
    ];
  
    buildInputs = [ db iptables libelf libmnl ];
    nativeBuildInputs = [ bison flex pkgconfig ];
  
    enableParallelBuilding = true;
  
    postInstall = ''
      PATH=${bash}/bin:$PATH patchShebangs $out/sbin
    '';
  
    meta = with stdenv.lib; {
      homepage = https://wiki.linuxfoundation.org/networking/iproute2;
      description = "A collection of utilities for controlling TCP/IP networking and traffic control in Linux";
      platforms = platforms.linux;
      license = licenses.gpl2;
  
negative.code:   };
  
    preConfigure = ''
      # Don't try to create /var/lib/arpd:
      sed -e '/ARPDDIR/d' -i Makefile
      # Don't build netem tools--they're not installed and require HOSTCC
      substituteInPlace Makefile --replace " netem " " "
  