-extern PTR htab_find PARAMS ((htab_t, const void *));
-extern PTR *htab_find_slot PARAMS ((htab_t, const void *,
- enum insert_option));
-extern PTR htab_find_with_hash PARAMS ((htab_t, const void *,
- hashval_t));
-extern PTR *htab_find_slot_with_hash PARAMS ((htab_t, const void *,
- hashval_t,
- enum insert_option));
-extern void htab_clear_slot PARAMS ((htab_t, void **));
-extern void htab_remove_elt PARAMS ((htab_t, void *));
+extern void * htab_find (htab_t, const void *);
+extern void ** htab_find_slot (htab_t, const void *, enum insert_option);
+extern void * htab_find_with_hash (htab_t, const void *, hashval_t);
+extern void ** htab_find_slot_with_hash (htab_t, const void *,
+ hashval_t, enum insert_option);
+extern void htab_clear_slot (htab_t, void **);
+extern void htab_remove_elt (htab_t, const void *);
+extern void htab_remove_elt_with_hash (htab_t, const void *, hashval_t);