2 #include <posix/sys/wait.h>
4 /* Now define the internal interfaces. */
5 extern __pid_t __waitpid
__P ((__pid_t __pid
, int *__stat_loc
,
7 extern __pid_t __wait3
__P ((__WAIT_STATUS __stat_loc
,
8 int __options
, struct rusage
* __usage
));
9 extern __pid_t __wait4
__P ((__pid_t __pid
, __WAIT_STATUS __stat_loc
,
10 int __options
, struct rusage
*__usage
));