anchor.diff:  -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_group/2, end_per_group/2, 
   	 init_per_testcase/2, end_per_testcase/2,
   
   	 t_connect_timeout/1, t_accept_timeout/1,
  
positive.code:      t_fdconnect,
       t_implicit_inet6,
       t_accept_inet6_tclass,
       t_simple_local_sockaddr_in_send_recv,
       t_simple_link_local_sockaddr_in_send_recv,
       t_simple_local_sockaddr_in6_send_recv,
  
negative.code:     catch
          _C:_E:_S ->
              {skip, "AF_LOCAL not supported"}
      end;
  init_per_group(t_link_local = _GroupName, Config) ->
      try socket:info() of
  	_ ->
              Config
      catch
          error : undef ->
              {skip, "esock not configured"}
      end;
  init_per_group(_GroupName, Config) ->
      Config.
  