Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.1245
diff -u -p -r1.1245 common.inc
--- includes/common.inc	26 Oct 2010 15:17:50 -0000	1.1245
+++ includes/common.inc	3 Nov 2010 20:36:17 -0000
@@ -2816,6 +2816,10 @@ function drupal_add_css($data = NULL, $o
     // Add the data to the CSS array depending on the type.
     switch ($options['type']) {
       case 'inline':
+        // Inline CSS is inherently not preprocessable, but the defaults set
+        // above say it will be.
+        $options['preprocess'] = FALSE;
+
         // For inline stylesheets, we don't want to use the $data as the array
         // key as $data could be a very long string of CSS.
         $css[] = $options;