Ciao a tutti,
vorrei modificare il path a cui fai puntare il link del selettore lingua.
In modules/locale/locale.module ho trovato la funzione che crea i link:

function locale_block($op = 'list', $delta = 0) {
  if ($op == 'list') {
    $block[0]['info'] = t('Language switcher');
    // Not worth caching.
    $block[0]['cache'] = BLOCK_NO_CACHE;
    return $block;
  }

  // Only show if we have at least two languages and language dependent
  // web addresses, so we can actually link to other language versions.
  elseif ($op == 'view' && variable_get('language_count', 1) > 1 && variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE) != LANGUAGE_NEGOTIATION_NONE) {
    $path = drupal_is_front_page() ? '<front>' : $_GET['q'];
    $languages = language_list('enabled');
    $links = array();
    foreach ($languages[1] as $language) {
      $links[$language->language] = array(
        'href'       => $path,
        'title'      => $language->native,
        'language'   => $language,
        'attributes' => array('class' => 'language-link'),
      );
    }

    // Allow modules to provide translations for specific links.
    // A translation link may need to point to a different path or use
    // a translated link text before going through l(), which will just
    // handle the path aliases.
    drupal_alter('translation_link', $links, $path);

    $block['subject'] = t('Languages');
    $block['content'] = theme('links', $links, array());
    return $block;
  }
}

So modifico la variabile $path da
$path = drupal_is_front_page() ? '<front>' : $_GET['q'];

a

$path = '<front>';

funziona, ma non volevo modificare il core drupal.....

visto che c'è una chiamata a drupal_alter('translation_link', $links, $path); posso mettere nel mio template.php la funzione function MIOTEMA_translation_link_alter( $links, $path){} giusto?
ho provato con questa, ma non funziona...

function MIOTEMA_translation_link_alter( &$links, $path){
   foreach($links as &$link) {     
         $link['href'] = '<front>';
   }
}

cosa sbaglio?
grazie