no read/write/close function for socket

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@145 bbd45198-f89e-11dd-88c7-29a3b14d5316

net/lwip/src/lwipopts.h

@@ -305,4 +305,7 @@
 
 #endif /* PPP_SUPPORT */
 
+/* no read/write/close for socket */
+#define LWIP_POSIX_SOCKETS_IO_NAMES	0
+
 #endif /* __LWIPOPTS_H__ */