13 # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
16 # define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
20 # define WAIT_FLAGS ( WNOHANG | WUNTRACED | WCONTINUED )
22 # define WAIT_FLAGS ( WNOHANG | WUNTRACED )
25 #endif /* _AC_WAIT_H */