BEGIN {
   # This unless block just seems a little clearer than the
   # way you were doing it.
   #
   unless (eval { require Term::Menus })
   {
      print "INSTALLING PERL Term::Menus MODULE\n\n";
      system("/opt/hp/hadooptools/validation/smoke/cpan.sh Term::Menus");
   }
}
use Term::Menus;