int (*mksubpkt)(PKT_signature *, void *),
void *opaque,
const char *cache_nonce);
-int update_keysig_packet( PKT_signature **ret_sig,
+gpg_error_t update_keysig_packet (PKT_signature **ret_sig,
PKT_signature *orig_sig,
PKT_public_key *pk,
PKT_user_id *uid,