anchor.diff:              ok = file:close(Fd),
               AbsIncls;
           {error, Reason} ->
  -            throw({cannot_read_file, Source, file:format_error(Reason)})
  +            throw(?PRV_ERROR({cannot_read_file, Source, file:format_error(Reason)}))
       end.
   
   compile(Source, [{_, OutDir}], Config, ErlOpts) ->
  
positive.code:                     []
              end
      end.
  
negative.code:          needed_files/4,
           dependencies/3,
           compile/4,
           clean/2,
           format_error/1]).
  
  -include("rebar.hrl").
  -include_lib("providers/include/providers.hrl").
  
  context(AppInfo) ->
      EbinDir = rebar_app_info:ebin_dir(AppInfo),
  