anchor.diff:  		  ?line <<"foo.erl">> = filename:basename(<<"c:\\usr.hrl\\foo.erl">>,
   						      <<".hrl">>),
   		  ?line <<"foo">> = filename:basename(<<"A:\\usr\\foo">>, <<".hrl">>);
  -	      {unix, _} ->
  +	      _ ->
   		  ?line <<"strange\\but\\true">> =
   		      filename:basename(<<"strange\\but\\true.erl">>, <<".erl">>),
   		  ?line <<"strange\\but\\true">> =
  
positive.code: 		      filename:join([<<"A:">>,<<"C:usr">>,<<"foo.erl">>]),
  		  ?line <<"d:/foo">> = filename:join([$D, $:, $/, []], <<"foo">>),
  		  ok;
  	      {unix, _} ->
  		  ok
  	  end.
  
  
negative.code: 		      filename:join(["A:","C:usr","foo.erl"]),
  		  ?line "d:/foo" = filename:join([$D, $:, $/, []], "foo"),
  		  ok;
  	      _ ->
  		  ok
  	  end.
  
  