anchor.diff:      ok.
   
   % First try the --config flag, then try the relx sys_config
  --spec find_config(rebar_state:t()) -> [tuple()] | no_config.
  +-spec find_config(rebar_state:t()) -> [[tuple()]] | no_config.
   find_config(State) ->
       case first_value([fun find_config_option/1,
                         fun find_config_rebar/1,
  
positive.code:     debug_get_value(sys_config, rebar_state:get(State, relx, []), no_value,
                      "Found config from relx.").
  
  -spec consult_config(rebar_state:t(), string()) -> [tuple()].
  consult_config(State, Filename) ->
      Fullpath = filename:join(rebar_dir:root_dir(State), Filename),
      ?DEBUG("Loading configuration from ~p", [Fullpath]),
      case rebar_file_utils:try_consult(Fullpath) of
          [T] -> T;
          [] -> []
      end.
  
negative.code:         ConfigList ->
              try
                  [application:set_env(Application, Key, Val)
                    || Config <- ConfigList,
                       {Application, Items} <- Config,
                       {Key, Val} <- Items]
              catch _:_ ->
                  ?ERROR("The configuration file submitted could not be read "
  