WSAEWOULDBLOCK    103 src/simh/sim_sock.c         {WSAEWOULDBLOCK,  "Operation would block"},
WSAEWOULDBLOCK    985 src/simh/sim_sock.c         if ((WSAGetLastError () != WSAEWOULDBLOCK) &&
WSAEWOULDBLOCK   1011 src/simh/sim_sock.c     if (err != WSAEWOULDBLOCK)
WSAEWOULDBLOCK   1145 src/simh/sim_sock.c     if (err == WSAEWOULDBLOCK)                          /* no data */
WSAEWOULDBLOCK   1169 src/simh/sim_sock.c     if (err == WSAEWOULDBLOCK)                          /* no data */