Index: includes/module.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/module.inc,v
retrieving revision 1.209
diff -u -p -r1.209 module.inc
--- includes/module.inc	27 Nov 2010 20:41:38 -0000	1.209
+++ includes/module.inc	2 Feb 2011 20:35:49 -0000
@@ -373,6 +373,8 @@ function module_enable($module_list, $en
       // Add dependencies to the list, with a placeholder weight.
       // The new modules will be processed as the while loop continues.
       foreach ($module_data[$module]->info['dependencies'] as $dependency) {
+        $parts = explode('(', $dependency, 2);
+        $dependency = trim($parts[0]);
         if (!isset($module_list[$dependency])) {
           $module_list[$dependency] = 0;
         }