SIGNGAM (man3p)
signgam — log gamma function
signgam — log gamma function
posix_spawn, posix_spawnp — spawn a process (ADVANCED REALTIME)
remove — remove a file
wcscat — concatenate two wide-character strings
clock — report CPU time used
pthread_barrierattr_init — initialize the barrier attributes object
remainder, remainderf, remainderl — remainder function
pthread_mutex_setprioceiling — change the priority ceiling of a mutex (REALTIME THREADS)
expm1, expm1f, expm1l — compute exponential functions
initstate, random, setstate, srandom — pseudo-random number functions