Hello, I am trying to join multicast group using socket API. When I do this the I am not able o join the multicast group. So I searched and found out that I have to change the define LWIP_IGMP to 1. Now after I have changed the value of define, I am getting an error in file sockets.h at #define IP_ADD_MEMBERSHIP 3 and error is Expected identifier before numeric constant. What I am doing wrong here? Please, help me with it.
Thanks, Saad
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