anchor.diff:        "${nettools}/bin:${nettools}/sbin:${iputils}/bin:${coreutils}/bin:${gnused}/bin"
     '';
   
  -  enableParallelBuilding = true;
  +  enableParallelBuilding = false;
   
     meta = with stdenv.lib; {
       description = "Dynamic Host Configuration Protocol (DHCP) tools";
  
positive.code: , nettools, iputils, iproute, coreutils, gnused
  
  # Optional Dependencies
  , bind ? null, openldap ? null
  }:
  
  with stdenv;
  let
    optBind = shouldUsePkg bind;
    optOpenldap = shouldUsePkg openldap;
  in
  with stdenv.lib;
  
negative.code:     (mkEnable false                 "use-sockets"    null)
      (mkEnable false                 "secs-byteorder" null)
      (mkEnable false                 "log-pid"        null)
      (mkWith   false                 "libbind"        null)
      (mkWith   (optOpenldap != null) "ldap"           null)
      (mkWith   (optOpenldap != null) "ldapcrypto"     null)
    ];
  