The pthread.h file exists and can be included. pthread.h header shall define the following symbols PTHREAD_BARRIER_SERIAL_THREAD BAR PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DISABLE PTHREAD_CANCELED PTHREAD_COND_INITIALIZER PTHREAD_CREATE_DETACHED PTHREAD_CREATE_JOINABLE PTHREAD_EXPLICIT_SCHED PTHREAD_INHERIT_SCHED PTHREAD_MUTEX_DEFAULT XSI PTHREAD_MUTEX_ERRORCHECK XSI PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_NORMAL XSI PTHREAD_MUTEX_RECURSIVE XSI PTHREAD_ONCE_INIT PTHREAD_PRIO_INHERIT TPP|TPI PTHREAD_PRIO_NONE TPP|TPI PTHREAD_PRIO_PROTECT TPP|TPI PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_PRIVATE PTHREAD_SCOPE_PROCESS TPS PTHREAD_SCOPE_SYSTEM TPS Type 'pthread_attr_t' shall be defined as described in sys/types.h Type 'pthread_barrier_t' shall be defined as described in sys/types.h Type 'pthread_barrierattr_t' shall be defined as described in sys/types.h Type 'pthread_cond_t' shall be defined as described in sys/types.h Type 'pthread_condattr_t' shall be defined as described in sys/types.h Type 'pthread_key_t' shall be defined as described in sys/types.h Type 'pthread_mutex_t' shall be defined as described in sys/types.h Type 'pthread_mutexattr_t' shall be defined as described in sys/types.h Type 'pthread_once_t' shall be defined as described in sys/types.h Type 'pthread_rwlock_t' shall be defined as described in sys/types.h Type 'pthread_rwlockattr_t' shall be defined as described in sys/types.h Type 'pthread_spinlock_t' shall be defined as described in sys/types.h Type 'pthread_t' shall be defined as described in sys/types.h This function is defined: pthread_create(pthread_t *restrict, const pthread_attr_t *restrict, void *(*)(void *), void *restrict); This function is defined: void pthread_exit(void *); This function is defined: pthread_t pthread_self(void); This function is defined: int pthread_equal(pthread_t, pthread_t); This function is defined: int pthread_join(pthread_t, void **); This function is defined: int pthread_detach(pthread_t); This function is defined: int pthread_attr_init(pthread_attr_t *); This function is defined: int pthread_attr_destroy(pthread_attr_t *); This function is defined: int pthread_attr_getdetachstate(const pthread_attr_t *, int *); This function is defined: int pthread_attr_setdetachstate(pthread_attr_t *, int); This function is defined: int pthread_mutex_init(pthread_mutex_t *restrict, const pthread_mutexattr_t *restrict); This function is defined: int pthread_mutex_destroy(pthread_mutex_t *); This function is defined: int pthread_mutex_lock(pthread_mutex_t *); This function is defined: int pthread_mutex_trylock(pthread_mutex_t *); This function is defined: int pthread_mutex_unlock(pthread_mutex_t *); This function is defined: int pthread_mutexattr_init(pthread_mutexattr_t *); This function is defined: int pthread_mutexattr_destroy(pthread_mutexattr_t *);