. Tooltalk 1.0.2 only
. Global variables
. Not implemented :
      tt_file_objects_query
      tt_message_arg_bval
      tt_message_arg_bval_set
      tt_message_barg_add
      tt_message_arg_ival
      tt_message_arg_ival_set
      tt_message_iarg_add
      tt_pattern_barg_add
      tt_pattern_iarg_add
      tt_session_bprop
      tt_session_bprop_add
      tt_session_bprop_set
      tt_spec_bprop
      tt_spec_bprop_add
      tt_spec_bprop_set
      tt_malloc
      tt_free
. Will break if TT_OK != 0
