WALTSIG
options |= WALTSIG;
options |= WALTSIG;
(options & WALTSIG ? child->p_exitsig == SIGCHLD
#define __WCLONE WALTSIG
#define WALLOPTS (WNOHANG|WALTSIG|WALLSIG|WNOWAIT|WNOZOMBIE|WSELECTOPTS)
WALTSIG,