- fprintf (stderr, ngettext ("%d nonterminal",
- "%d nonterminals",
- nuseless_nonterminals),
- nuseless_nonterminals);
-
- if (nuseless_nonterminals > 0 && nuseless_productions > 0)
- fprintf (stderr, _(" and "));
-
+ warn (ngettext ("%d nonterminal useless in grammar",
+ "%d nonterminals useless in grammar",
+ nuseless_nonterminals),
+ nuseless_nonterminals);