anchor.diff:       {t_recv,               [], t_recv_cases()},
        {t_shutdown,           [], t_shutdown_cases()},
        {t_misc,               [], t_misc_cases()},
  +     {t_link_local,         [], t_link_local_cases()},
        {t_local,              [], t_local_cases()},
        {s_misc,               [], s_misc_cases()}
       ].
  
positive.code:     catch
          _C:_E:_S ->
              {skip, "AF_LOCAL not supported"}
      end;
  init_per_group(_GroupName, Config) ->
      Config.
  
negative.code: -export([
  	 all/0, suite/0, groups/0,
  	 init_per_suite/1, end_per_suite/1, 
  	 init_per_group/2, end_per_group/2, 
  	 init_per_testcase/2, end_per_testcase/2,
  
  	 t_connect_timeout/1, t_accept_timeout/1,
  