Exporting tcp_type seems unnecessary
@@ -37,8 +37,7 @@ static int tcp_makeconn(int fd);
/* TCP connection socket */
/******************************************************************************/
-static const int tcp_type___ = 0;
-DILL_EXPORT const void *tcp_type = &tcp_type___;
+dill_unique_id(tcp_type);
static void *tcp_hquery(struct hvfs *hvfs, const void *type);
static void tcp_hclose(struct hvfs *hvfs);
