Undefined index: host in load.php

When I patch I get:

Notice: Undefined index: host in C:\idugg\xampp\htdocs\joomla\smf\Sources\Load.php on line 1784

Unpatch it goes away... running rc1, latest joomla & xampp on windows.

Joomla-SMF was working fine, but I had a bug in the smf forum set up so I un-installed both smf and joomla-smf started over. Now forum is working fine but bridge shows this error.

Here is the function containing the error:
// Attempt to start the session, unless it already has been.
function loadSession()
{
   global $HTTP_SESSION_VARS, $modSettings, $boardurl;

   // Attempt to change a few PHP settings.
   @ini_set('session.use_cookies', true);
   @ini_set('session.use_only_cookies', false);
   @ini_set('url_rewriter.tags', '');
   @ini_set('session.use_trans_sid', false);
   @ini_set('arg_separator.output', '&');

   if (!empty($modSettings['globalCookies']))
   {
      $parsed_url = parse_url($boardurl);

      if (preg_match('~^\d{1,3}(\.\d{1,3}){3}$~', $parsed_url['host']) == 0 && preg_match('~(?:[^\.]+\.)?([^\.]{2,}\..+)\z~i', $parsed_url['host'], $parts) == 1)
         @ini_set('session.cookie_domain', '.' . $parts[1]);
   }
   // !!! Set the session cookie path?

   // If it's already been started... probably best to skip this.
   if ((@ini_get('session.auto_start') == 1 && !empty($modSettings['databaseSession_enable'])) || session_id() == '')
   {
      // Attempt to end the already-started session.
      if (@ini_get('session.auto_start') == 1)
         @session_write_close();

      // This is here to stop people from using bad junky PHPSESSIDs.
      if (isset($_REQUEST[session_name()]) && preg_match('~^[A-Za-z0-9]{16,32}$~', $_REQUEST[session_name()]) == 0 && !isset($_COOKIE[session_name()]))
      {
         $_REQUEST[session_name()] = md5(md5('smf_sess_' . time()) . rand());
         $_GET[session_name()] = md5(md5('smf_sess_' . time()) . rand());
         $_POST[session_name()] = md5(md5('smf_sess_' . time()) . rand());
      }

      // Use database sessions? (they don't work in 4.1.x!)
      if (!empty($modSettings['databaseSession_enable']) && @version_compare(PHP_VERSION, '4.2.0') != -1)
         session_set_save_handler('sessionOpen', 'sessionClose', 'sessionRead', 'sessionWrite', 'sessionDestroy', 'sessionGC');
      elseif (@ini_get('session.gc_maxlifetime') <= 1440 && !empty($modSettings['databaseSession_lifetime']))
         @ini_set('session.gc_maxlifetime', max($modSettings['databaseSession_lifetime'], 60));

      // Use cache setting sessions?
      if (empty($modSettings['databaseSession_enable']) && !empty($modSettings['cache_enable']) && php_sapi_name() != 'cli')
      {
         if (function_exists('mmcache_set_session_handlers'))
            mmcache_set_session_handlers();
         elseif (function_exists('eaccelerator_set_session_handlers'))
            eaccelerator_set_session_handlers();
      }

      session_start();

      // Change it so the cache settings are a little looser than default.
      if (!empty($modSettings['databaseSession_loose']))
         header('Cache-Control: private');
   }

   // While PHP 4.1.x should use $_SESSION, it seems to need this to do it right.
   if (@version_compare(PHP_VERSION, '4.2.0') == -1)
      $HTTP_SESSION_VARS['php_412_bugfix'] = true;

   // Set the randomly generated code.
   if (!isset($_SESSION['rand_code']))
      $_SESSION['rand_code'] = md5(session_id() . rand());
   $GLOBALS['sc'] = &$_SESSION['rand_code'];
}

the failing line is
if (preg_match('~^\d{1,3}(\.\d{1,3}){3}$~', $parsed_url['host']) == 0 && preg_match('~(?:[^\.]+\.)?([^\.]{2,}\..+)\z~i', $parsed_url['host'], $parts) == 1)

thoughts?