Index: globalredirect.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/globalredirect/globalredirect.module,v
retrieving revision 1.1.2.4.2.5.2.14
diff -u -r1.1.2.4.2.5.2.14 globalredirect.module
--- globalredirect.module	22 Dec 2008 10:34:32 -0000	1.1.2.4.2.5.2.14
+++ globalredirect.module	13 Feb 2009 19:43:49 -0000
@@ -158,6 +158,16 @@
     // Restore the destination from earlier so its available in other places.
     if (isset($destination)) $_REQUEST['destination'] = $destination;
   }
+
+  // Add the canonical link to the head of the document if desired.
+  if (variable_get('globalredirect_canonical', FALSE)) {
+    drupal_add_link(array(
+      'rel' => 'canonical',
+      'href' => url(drupal_is_front_page() ? '<front>' : $_REQUEST['q'], array(
+        'absolute' => TRUE,
+      )),
+    ));
+  }
 }
 
 
Index: globalredirect.admin.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/globalredirect/Attic/globalredirect.admin.inc,v
retrieving revision 1.1.2.6
diff -u -r1.1.2.6 globalredirect.admin.inc
--- globalredirect.admin.inc	22 Dec 2008 11:43:41 -0000	1.1.2.6
+++ globalredirect.admin.inc	13 Feb 2009 19:43:49 -0000
@@ -69,6 +69,13 @@
     '#default_value' => variable_get('globalredirect_case_sensitive_urls', GLOBALREDIRECT_CASE_SENSITIVE_URLS_ENABLED),
   );
 
+  $form['globalredirect_canonical'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Add Canonical Link'),
+    '#description' => t('If enabled, will add a <a href="!canonical">canonical link</a> to each page.', array('!canonical' => 'http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html')),
+    '#default_value' => variable_get('globalredirect_canonical', FALSE),
+  );
+
   return system_settings_form($form);
 }