anchor.diff:  }:
   
   let
  -  inherit (stdenv.lib)
  +  inherit (lib)
       optionals
       optionalString;
   in
  -
   stdenv.mkDerivation rec {
     name = "wget-1.19.4";
   
  
positive.code:     libidn2
      libpsl
      lzip
      openssl_1-0-2
      pcre
      util-linux_lib
      zlib
  
negative.code:     };
    };
  
    meta = with lib; {
      description = "Tool for retrieving files using HTTP, HTTPS, and FTP";
      homepage = http://www.gnu.org/software/wget/;
      license = licenses.gpl3Plus;
  