Merge pull request #1 from xiangxistu/lwIP-2.1.2

lwIP 2.1.2

Author: xiangxistu

components/net/Kconfig

@@ -120,9 +120,13 @@ config RT_USING_LWIP
 
             config RT_USING_LWIP210
                 bool "lwIP v2.1.0"
+
+	    config RT_USING_LWIP212
+                bool "lwIP v2.1.2"
+
         endchoice
 
-        if (RT_USING_LWIP210 || RT_USING_LWIP202)
+        if (RT_USING_LWIP210 || RT_USING_LWIP202 || RT_USING_LWIP212)
             config RT_USING_LWIP_IPV6
                 bool "IPV6 protocol"
                 default n

components/net/SConscript

@@ -8,7 +8,7 @@ cwd = GetCurrentDir()
 list = os.listdir(cwd)
 
 # the default version of LWIP is 2.0.2
-if not GetDepend('RT_USING_LWIP141') and not GetDepend('RT_USING_LWIP202') and not GetDepend('RT_USING_LWIP210'):
+if not GetDepend('RT_USING_LWIP141') and not GetDepend('RT_USING_LWIP202') and not GetDepend('RT_USING_LWIP210') and not GetDepend('RT_USING_LWIP212'):
     AddDepend('RT_USING_LWIP202')
 
 for d in list: