XSI_REALTIME_THREADS

The XSI_REALTIME_THREADS option group (_XOPEN_REALTIME_THREADS) enables _POSIX_THREAD_PRIORITY_SCHEDULING, _POSIX_THREAD_PRIO_INHERIT, and _POSIX_THREAD_PRIO_PROTECT.

Enable this option group with CONFIG_XSI_REALTIME_THREADS.