WEXITSTATUS       61 missing/mkdir.c   if (WIFSIGNALED (status) || WEXITSTATUS (status) != 0)
WEXITSTATUS       97 missing/mkdir.c   if (WIFSIGNALED (status) || WEXITSTATUS (status) != 0)
WEXITSTATUS      210 process.c      	return INT2NUM(WEXITSTATUS(status));