--- src/game/NetHandler.cxx-orig	2018-01-22 12:28:31.043278572 -0600
+++ src/game/NetHandler.cxx	2018-01-22 12:28:07.889568033 -0600
@@ -135,7 +135,7 @@
   uint16_t code;
   while (true) {
     n = recvfrom(udpSocket, buffer, MaxUDPPacketLen, 0, (struct sockaddr *) uaddr,
-		 &recvlen);
+		 (socklen_t*)&recvlen);
     if ((n < 0) || (n >= 4))
       break;
   }