Index: modules/system/system.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.module,v
retrieving revision 1.406
diff -u -p -r1.406 system.module
--- modules/system/system.module	24 Nov 2006 10:57:20 -0000	1.406
+++ modules/system/system.module	24 Nov 2006 15:47:12 -0000
@@ -1807,6 +1807,20 @@ function system_status($check = FALSE) {
     return drupal_requirements_severity($requirements) == REQUIREMENT_ERROR;
   }
 
+  // Output list of enabled modules.
+  $modules = module_rebuild_cache();
+  $enabled = array();
+  foreach ($modules as $module) {
+    if ($module->status) {
+      $enabled[] = $module->info['name'];
+    }
+  }
+  $requirements['enabled_modules'] = array(
+    'title' => t('Enabled modules'),
+    'description' => theme('item_list', $enabled),
+    'severity' => REQUIREMENT_INFO,
+  );
+
   return theme('status_report', $requirements);
 }