_POSIX_THREAD_PROCESS_SHARED

Enable this option with CONFIG_POSIX_THREAD_PROCESS_SHARED; the X/Open System Interfaces (CONFIG_XSI) require it and select it.

_POSIX_THREAD_PROCESS_SHARED
API	Supported
`pthread_condattr_getpshared()`	yes
`pthread_condattr_setpshared()`	yes
`pthread_mutexattr_getpshared()`	yes
`pthread_mutexattr_setpshared()`	yes

The pshared attribute of barriers, read-write locks and spin locks, and the pshared argument of sem_init(), are accepted by their own option groups when this option is enabled. See Process-shared synchronization for how a shared object works.

_POSIX_THREAD_PROCESS_SHARED