anchor.diff:      "CONFDIR=$(out)/etc/iproute2"
     ];
   
  +  nativeBuildInputs = [ bison flex pkg-config ];
     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;
  +    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;
  
positive.code: { fetchurl, stdenv, flex, bash, bison, db, iptables, pkgconfig, libelf, libmnl }:
  
  stdenv.mkDerivation rec {
    pname = "iproute2";
  
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 " " "
  