Index: /trunk/ntripserver/ntripserver.c
===================================================================
--- /trunk/ntripserver/ntripserver.c	(revision 10682)
+++ /trunk/ntripserver/ntripserver.c	(revision 10683)
@@ -912,10 +912,10 @@
         int opt = 1;
 #ifndef WINDOWSVERSION
-        if (setsockopt(socket_tcp, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt)))  {
+        if (setsockopt(socket_tcp, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, (void *)&opt, sizeof(opt)))  {
             perror("ERROR: setsockopt");
             break;
         }
 #else
-        if (setsockopt(socket_tcp, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)))  {
+        if (setsockopt(socket_tcp, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)))  {
             perror("ERROR: setsockopt");
             break;