anchor.diff:  
   -ifdef(with_crypto_bytes_to_integer).
   test_with_crypto_bytes_to_integer(_Config) ->
  -    ?assert(lists:member(erlang:system_info(otp_release), ["18", "19", "20",
  +    ?assert(lists:member(erlang:system_info(otp_release), ["17", "18", "19", "20",
                                                              "21", "22"])),
       ok.
   -else.
  
positive.code: -else.
  test_have_ssl_getstat(_Config) ->
      ?assert(lists:member(erlang:system_info(otp_release), ["R14B04", "R15B",
                                                             "R16B", "18"])),
      ok.
  -endif.
  
  
negative.code: -ifdef(have_crypto_randuniform_support).
  test_have_crypto_randuniform_support(_Config) ->
      ?assert(lists:member(erlang:system_info(otp_release), ["R14B04", "R15B",
                                                             "R16B", "17", "18", "19",
                                                             "20", "21", "22"])),
      ok.
  -else.
  