O_NONBLOCK        326 lib/fcntl.in.h # define O_NONBLOCK O_NDELAY
O_NONBLOCK        337 lib/fcntl.in.h #  undef O_NONBLOCK
O_NONBLOCK        338 lib/fcntl.in.h #  define O_NONBLOCK 0x40000000
O_NONBLOCK        142 nt/inc/sys/socket.h #define O_NONBLOCK  04000