NAME wait3, wait4 - wait for process to change state, BSD style LIBRARY Standard C library ... libc , -lc ) SYNOPSIS #include <sys/wait.h> pid_t wait3(int *_Nullable wstatus , int …NAME wait3, wait4 - wait for process to change state, BSD style LIBRARY Standard C library ... libc , -lc ) SYNOPSIS #include <sys/wait.h> pid_t wait3(int *_Nullable wstatus , int …FIFO; see fifo (7)). • wait (2), wait3 (2), wait4 (2), waitid (2), and waitpid