Number of warnings is down to 3 again in lib directory. A lot of const's
added to strings and a lot of int -> unsigned int changes.
diff --git a/lib/filter.h b/lib/filter.h
index 077ac2f..a33e7bf 100644
--- a/lib/filter.h
+++ b/lib/filter.h
@@ -61,7 +61,7 @@
void access_list_reset (void);
void access_list_add_hook (void (*func)(struct access_list *));
void access_list_delete_hook (void (*func)(struct access_list *));
-struct access_list *access_list_lookup (afi_t, char *);
+struct access_list *access_list_lookup (afi_t, const char *);
enum filter_type access_list_apply (struct access_list *, void *);
#endif /* _ZEBRA_FILTER_H */