anchor.diff:  
   quickcheck(Property, Config) ->
       Tool = proplists:get_value(property_test_tool,Config),
  -    mk_ct_return( Tool:quickcheck(Property) ).
  +    mk_ct_return( Tool:quickcheck(Property), Tool ).
   
   
   %%%================================================================
  
positive.code:     
  
  macro_def(eqc) -> [{d, 'EQC'}];
  macro_def(proper) -> [{d, 'PROPER'}].
      
  
negative.code: %%%
  %%% @doc Initializes Config for property testing.
  %%%
  %%% <p>The function investigates if support is available for either Quickcheck, PropEr,
  %%% or Triq.
  %%% The options <c>{property_dir,AbsPath}</c> and
  %%% <c>{property_test_tool,Tool}</c> is set in the Config returned.</p>
  %%% <p>The function is intended to be called in the init_per_suite in the test suite.</p>
  