POSIX_TRACE_EVENTSET_ADD (man3p)
posix_trace_eventset_add, posix_trace_eventset_del, posix_trace_eventset_empty, posix_trace_eventset_fill, posix_trace_eventset_ismember — manipulate trace event type sets (TRACING)
posix_trace_eventset_add, posix_trace_eventset_del, posix_trace_eventset_empty, posix_trace_eventset_fill, posix_trace_eventset_ismember — manipulate trace event type sets (TRACING)
lstat — get file status
strncat — concatenate a string with part of another
fmax, fmaxf, fmaxl — determine maximum numeric value of two floating-point numbers
pthread_key_delete — thread-specific data key deletion
setgid — set-group-ID
pthread_exit — thread termination
fdetach — detach a name from a STREAMS-based file descriptor (STREAMS)
fdim, fdimf, fdiml — compute positive difference between two floating-point numbers
gai_strerror — address and name information error description