ENGINE_FLAGS_NO_REGISTER_ALL
if (!(e->flags & ENGINE_FLAGS_NO_REGISTER_ALL))
if (!ENGINE_set_id(e, engine_e_rdrand_id) || !ENGINE_set_name(e, engine_e_rdrand_name) || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) || !ENGINE_set_init_function(e, rdrand_init) || !ENGINE_set_RAND(e, &rdrand_meth))
|| !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)