int sock;
xbt_queue_shift_timed(me->socks_to_close, &sock, 0);
if (tcp_close(sock) < 0) {
-#ifdef _WIN32
+#ifdef _XBT_WIN32
WARN2("error while closing tcp socket %d: %d (%s)\n", sock, sock_errno);
#else
WARN3("error while closing tcp socket %d: %d (%s)\n",