tcp: maybe related to 721fffe3

*** 40,49 ****
--- 40,51 ----
  #include <netinet/tcp.h>
  #include <inet/optcom.h>
  #include <inet/proto_set.h>
  #include <inet/tcp_impl.h>
  
+ static int      tcp_opt_default(queue_t *, t_scalar_t, t_scalar_t, uchar_t *);
+ 
  /*
   * Table of all known options handled on a TCP protocol stack.
   *
   * Note: This table contains options processed by both TCP and IP levels
   *       and is the superset of options that can be performed on a TCP over IP