Index: nsock/src/nsock_connect.c
===================================================================
--- nsock/src/nsock_connect.c	(revision 9113)
+++ nsock/src/nsock_connect.c	(working copy)
@@ -106,7 +106,7 @@
 
     if (iod->locallen) {
       int one = 1;
-      setsockopt(iod->sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
+      setsockopt(iod->sd, SOL_SOCKET, SO_REUSEADDR, (const char*)&one, sizeof(one));
       if (bind(iod->sd, (struct sockaddr *) &iod->local, iod->locallen) == -1) {
         if (ms->tracelevel > 0)
           nsock_trace(ms, "Bind to %s failed (IOD #%li) EID %li", 
@@ -115,7 +115,7 @@
     }
 
     if (iod->ipoptslen && ss->ss_family == AF_INET) {
-      if (setsockopt(iod->sd, IPPROTO_IP, IP_OPTIONS, iod->ipopts, iod->ipoptslen) == -1) {
+      if (setsockopt(iod->sd, IPPROTO_IP, IP_OPTIONS, (const char *)iod->ipopts, iod->ipoptslen) == -1) {
         if (ms->tracelevel > 0)
           nsock_trace(ms, "Setting of IP options failed (IOD #%li) EID %li", iod->id, nse->id);
       }
Index: tcpip.cc
===================================================================
--- tcpip.cc	(revision 9113)
+++ tcpip.cc	(working copy)
@@ -167,7 +167,7 @@
 	if (sd == -1)
 		return;
 
-	setsockopt(sd, IPPROTO_IP, IP_OPTIONS, opts, optslen);
+	setsockopt(sd, IPPROTO_IP, IP_OPTIONS, (const char*)opts, optslen);
 #endif
 }