libcutils: win_sdk build issues

Change-Id: Ic431166f686aebfd0ee00ad3224b95237ff7a0de
diff --git a/libcutils/socket_inaddr_any_server.c b/libcutils/socket_inaddr_any_server.c
index f70d56b..6c849de 100644
--- a/libcutils/socket_inaddr_any_server.c
+++ b/libcutils/socket_inaddr_any_server.c
@@ -46,7 +46,7 @@
     if(s < 0) return -1;
 
     n = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n));
+    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *) &n, sizeof(n));
 
     if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
         close(s);