#include <syscall.h> #include <sys/types.h> #include <sys/wait.h> #include <sys/resource.h> /* Wait for a child to die. When one does, put its status in *STAT_LOC * and return its process ID. For errors, return (pid_t) -1. */ __pid_t wait (__WAIT_STATUS_DEFN stat_loc) { return wait4 (WAIT_ANY, stat_loc, 0, (struct rusage *) NULL); }