let clang give more warnings (which pointed out a bug)
diff --git a/aos/linux_code/starter/starter.cc b/aos/linux_code/starter/starter.cc
index 363ca46..114148f 100644
--- a/aos/linux_code/starter/starter.cc
+++ b/aos/linux_code/starter/starter.cc
@@ -211,7 +211,7 @@
       notifyevt = reinterpret_cast<inotify_event *>(
           __builtin_assume_aligned(reinterpret_cast<char *>(notifyevt) +
                                        sizeof(*notifyevt) + notifyevt->len,
-                                   alignof(notifyevt)));
+                                   alignof(inotify_event)));
     }
   }