Index: libraries.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/libraries/libraries.module,v
retrieving revision 1.9
diff -u -p -r1.9 libraries.module
--- libraries.module	15 Oct 2010 15:15:53 -0000	1.9
+++ libraries.module	3 Nov 2010 20:47:49 -0000
@@ -15,7 +15,7 @@
  *   Whether to prefix the resulting path with base_path().
  *
  * @return
- *   The path to the specified library.
+ *   The path to the specified library or FALSE if the library wasn't found.
  *
  * @ingroup libraries
  */
@@ -28,9 +28,7 @@ function libraries_get_path($library, $b
 
   $path = ($base_path ? base_path() : '');
   if (!isset($libraries[$library])) {
-    // Most often, external libraries can be shared across multiple sites, so
-    // we return sites/all/libraries as the default path.
-    $path .= 'sites/all/libraries/' . $library;
+    return FALSE;
   }
   else {
     $path .= $libraries[$library];