/* This callback is used in lh_doall to destroy all EX_CLASS_ITEM values from
* "ex_data" prior to the ex_data hash table being itself destroyed. Doesn't do
* any locking. */
-static void def_cleanup_cb(void *a_void)
+static void def_cleanup_cb(const void *a_void)
{
EX_CLASS_ITEM *item = (EX_CLASS_ITEM *)a_void;
sk_CRYPTO_EX_DATA_FUNCS_pop_free(item->meth, def_cleanup_util_cb);