lib wait,wait2,wait3,wait4,waitpid

tst ok_wif sys/types.h sys/wait.h note{ posix wait macros ok }end compile{

int ifexited = WIFEXITED(0);

int exitstatus = WEXITSTATUS(0);

int ifsignaled = WIFSIGNALED(0);

int termsig = WTERMSIG(0);

int ifstopped = WIFSTOPPED(0);

int stopsig = WSTOPSIG(0);

}end