anchor.diff:      };
     };
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       homepage = http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2;
       description = "A collection of utilities for controlling TCP/IP networking and traffic control in Linux";
       license = licenses.gpl2;
  
positive.code:   src = fetchurl {
      urls = map (n: "${n}.xz") tarballUrls;
      hashOutput = false;
      sha256 = "d43ac068afcc350a448f4581b6e292331ef7e4e7aa746e34981582d5fdb10067";
    };
  
    nativeBuildInputs = [
  
negative.code: , bison
  , fetchurl
  , flex
  , lib
  
  , db
  , iptables
  }:
  
  let
    version = "4.15.0";
  
    tarballUrls = [
      "mirror://kernel/linux/utils/net/iproute2/iproute2-${version}.tar"
  