SEM_INIT (man3p)
sem_init — initialize an unnamed semaphore
sem_init — initialize an unnamed semaphore
_longjmp, _setjmp — non-local goto
pthread_getschedparam, pthread_setschedparam — dynamic thread scheduling parameters access (REALTIME THREADS)
wordexp, wordfree — perform word expansions
basename — return the last component of a pathname
wcstoumax — convert a wide-character string to an integer type
fdopen — associate a stream with a file descriptor
gethostent — network host database functions
getpwuid, getpwuid_r — search user database for a user ID
getpriority, setpriority — get and set the nice value