anchor.diff:  
   %% Minimal data transfer.
   xfer_stream_min(Config) when is_list(Config) ->
  +    {_, OSName} = os:type(),
       Stream = 0,
       Data = <<"The quick brown fox jumps over a lazy dog 0123456789">>,
       Loopback = {127,0,0,1},
  
positive.code: 			    state    = addr_available,
  			    error    = 0,
  			    assoc_id = SbAssocId}} ->
  	    {Loopback,
  	     Pa,
  	     [#sctp_sndrcvinfo{stream   = Stream,
  			       assoc_id = SbAssocId}],
  	     Data} = log_ok(gen_sctp:recv(Sb, infinity));
  
          %% It seems that on FreeBSD (for instance) we don't get any
          %% AncData with this, so this test fails.
          %% Shall we augment, or is it an actual fault?
  	{Loopback,
  	 Pa,
  	 [#sctp_sndrcvinfo{stream    = Stream,
  
negative.code: 			    state    = addr_confirmed,
  			    error    = 0,
  			    assoc_id = SbAssocId}} ->
              p("[3] received paddr change with ancillary data => recv again"),
              Res3 = log_ok(gen_sctp:recv(Sb, infinity)),
              p("[3] recv ok => "
                "~n   ~p", [Res3]),
  	    {Loopback,
  	     Pa,
  	     [#sctp_sndrcvinfo{stream   = Stream,
  			       assoc_id = SbAssocId}],
  	     Data} = Res3,
              p("[3] received expected data with ancillary data => done"),
              Res3;
  
          %% It seems that on FreeBSD (for instance) we don't get any
          %% AncData with this.
  	{Loopback,
  	 Pa,
  	 [],
  	 #sctp_paddr_change{addr     = {Loopback,_},
  			    state    = addr_confirmed,
  			    error    = 0,
  			    assoc_id = SbAssocId}} when (OSName =:= freebsd) ->
              p("[4] received paddr change without ancillary data => recv again"),
              Res4 = log_ok(gen_sctp:recv(Sb, infinity)),
              p("[4] recv ok => "
                "~n   ~p", [Res4]),
  	    {Loopback,
  	     Pa,
  	     [#sctp_sndrcvinfo{stream   = Stream,
                                 assoc_id = SbAssocId}],
  	     Data} = Res4,
              p("[4] received expected data with ancillary data => done"),
              Res4;
  
          {FromIPX, FromPortX, AncDataX, DataX} = Other1 ->
              p("UNEXPECTED: "
                "~n   FromIP:   ~p"
  