? drush_site_install6.constant.patch
Index: drush_site_install6.drush.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/drush_site_install6/drush_site_install6.drush.inc,v
retrieving revision 1.3
diff -u -p -r1.3 drush_site_install6.drush.inc
--- drush_site_install6.drush.inc	3 Aug 2010 16:12:20 -0000	1.3
+++ drush_site_install6.drush.inc	24 Oct 2010 22:01:16 -0000
@@ -93,6 +93,7 @@ function drush_drush_site_install6_site_
  */
 function _drush_site_install6_cookies($cookie = NULL) {
   $output = '$_GET=array("profile"=>"default", "locale"=>"' . drush_get_option('locale', 'en') . '", "id"=>"1"); $_REQUEST=&$_GET;';
+  $output .= 'define("DRUSH_SITE_INSTALL6", TRUE);';
   if ($cookie) {
     $output .= sprintf('$_COOKIE=unserialize("%s");', str_replace('"', '\"', $cookie));
   }