va_arg *, and why not.

[Mark Mitchell]

  *************** report_diagnostic (msg, args, file, line
  *** 1479,1491 ****
	 int line;
	 int warn;
    {
      output_state os;

      if (!count_error (warn))
	return;
      os = diagnostic_buffer->state;
      diagnostic_msg = msg;
  !   diagnostic_args = &args;
      report_error_function (file);
      output_set_prefix
	(diagnostic_buffer, context_as_prefix (file, line, warn));
  --- 1479,1493 ----
	 int line;
	 int warn;
    {
  +   va_list ap;
      output_state os;

      if (!count_error (warn))
	return;
  +   va_copy (ap, args);
      os = diagnostic_buffer->state;
      diagnostic_msg = msg;
  !   diagnostic_args = ≈
      report_error_function (file);
      output_set_prefix
	(diagnostic_buffer, context_as_prefix (file, line, warn));
  *************** report_diagnostic (msg, args, file, line
  *** 1493,1496 ****
  --- 1495,1499 ----
      finish_diagnostic ();
      output_destroy_prefix (diagnostic_buffer);
      diagnostic_buffer->state = os;
  +   va_end (ap);
    }


It looks like you are using va_copy, which Geoff said isn't fully
portable.

--
Mark Mitchell                   mark@codesourcery.com
CodeSourcery, LLC               http://www.codesourcery.com