-Requires: perl
-Requires: %{perl_sitelib}
-Requires: perl-HTML-Parser
-Requires: perl-MIME-Base64
-Requires: perl-Digest-MD5
-Requires: perl-libnet
-Requires: perl-URI
+BuildRequires: perl-libnet
+BuildArch: noarch
+BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
+Obsoletes: perl-libwww-perl
+
+# modules not always required
+%define _noautoreq "perl(HTML::Parse)" "perl(HTML::FormatPS)" "perl(HTML::FormatText)" "perl(HTTP::GHTTP)" "perl(IO::Socket::SSL)" "perl(Mail::Internet)"