extern const URLProtocol ff_subfile_protocol;
extern const URLProtocol ff_tee_protocol;
extern const URLProtocol ff_tcp_protocol;
-extern const URLProtocol ff_tls_gnutls_protocol;
-extern const URLProtocol ff_tls_schannel_protocol;
-extern const URLProtocol ff_tls_securetransport_protocol;
-extern const URLProtocol ff_tls_openssl_protocol;
+extern const URLProtocol ff_tls_protocol;
extern const URLProtocol ff_udp_protocol;
extern const URLProtocol ff_udplite_protocol;
extern const URLProtocol ff_unix_protocol;