Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.756.2.43
diff -u -p -r1.756.2.43 common.inc
--- includes/common.inc	14 Jan 2009 23:54:01 -0000	1.756.2.43
+++ includes/common.inc	28 Jan 2009 21:57:41 -0000
@@ -1411,7 +1411,6 @@ function url($path = NULL, $options = ar
 
   global $base_url;
   static $script;
-  static $clean_url;
 
   if (!isset($script)) {
     // On some web servers, such as IIS, we can't omit "index.php". So, we
@@ -1420,11 +1419,6 @@ function url($path = NULL, $options = ar
     $script = (strpos($_SERVER['SERVER_SOFTWARE'], 'Apache') === FALSE) ? 'index.php' : '';
   }
 
-  // Cache the clean_url variable to improve performance.
-  if (!isset($clean_url)) {
-    $clean_url = (bool)variable_get('clean_url', '0');
-  }
-
   if (!isset($options['base_url'])) {
     // The base_url might be rewritten from the language rewrite in domain mode.
     $options['base_url'] = $base_url;
@@ -1450,7 +1444,7 @@ function url($path = NULL, $options = ar
   $prefix = empty($path) ? rtrim($options['prefix'], '/') : $options['prefix'];
   $path = drupal_urlencode($prefix . $path);
 
-  if ($clean_url) {
+  if (variable_get('clean_url', '0')) {
     // With Clean URLs.
     if ($options['query']) {
       return $base . $path .'?'. $options['query'] . $options['fragment'];