anchor.diff:  
     meta = with stdenv.lib; {
       description = "Tool for retrieving files using HTTP, HTTPS, and FTP";
  -
  -    longDescription =
  -      '' GNU Wget is a free software package for retrieving files using HTTP,
  -         HTTPS and FTP, the most widely-used Internet protocols.  It is a
  -         non-interactive commandline tool, so it may easily be called from
  -         scripts, cron jobs, terminals without X-Windows support, etc.
  -      '';
  -
       license = licenses.gpl3Plus;
   
       homepage = http://www.gnu.org/software/wget/;
  
positive.code: { stdenv, fetchurl, gettext, libidn, pkgconfig
  , perl, perlPackages, LWP, python3
  , libiconv, libpsl ? null, openssl ? null }:
  
  stdenv.mkDerivation rec {
    name = "wget-1.17.1";
  
negative.code:     do
        sed -i "$i" -e's/localhost/127.0.0.1/g'
      done
    '';
  
    nativeBuildInputs = [ gettext pkgconfig ];
    buildInputs = [ libidn libpsl ]
      ++ stdenv.lib.optionals doCheck [ perl perlPackages.IOSocketSSL LWP python3 ]
      ++ stdenv.lib.optional (openssl != null) openssl;
  
    configureFlags =
      if openssl != null then "--with-ssl=openssl" else "--without-ssl";
  