anchor.diff:  		  erlang:system_info(threads) /= false],
       Debug = [" --enable-debug-mode" ||
   		string:str(erlang:system_info(system_version),"debug") > 0],
  -    MXX_Build = [Y || Y <- string:tokens(os:getenv("CONFIG_FLAGS", ""), " \t\n"),
  +    MXX_Build = [Y || Y <- config_flags(),
   		      Y == "--enable-m64-build"
   			  orelse Y == "--enable-m32-build"],
       Args = Host ++ Build ++ Threads ++ Debug ++ " " ++ MXX_Build,
  
positive.code: get_vars(_, _, _, _) ->
      {error, fatal_bad_conf_vars}.
  
  unix_autoconf(XConf) ->
      Configure = filename:absname("configure"),
      Flags = proplists:get_value(crossflags,XConf,[]),
  
negative.code:     {Opts, [{longnames, LongNames},
  	    {platform_id, PlatformId},
  	    {platform_filename, PlatformFilename},
  	    {rsh_name, get_rsh_name()},
  	    {platform_label, PlatformLabel},
  	    {ts_net_dir, Mounted},
  	    {erl_flags, []},
  