MariaDB 10.0.8 doesn't compile without perfschema

Compilation with -DWITH_PERFSCHEMA_STORAGE_ENGINE=OFF is impossible due to the error in xtradb: "undefined reference to `mutex_enter_nowait_func(ib_prio_mutex_t*, char const*, unsigned long)'".

There is a function that takes ib_mutex_t* as first argument, but there's no function that takes ib_prio_mutex_t* as first argument.