#if defined(USE_ITHREADS)
PERLVAR(G, hints_mutex, perl_mutex) /* Mutex for refcounted he refcounting */
+PERLVAR(G, locale_mutex, perl_mutex) /* Mutex for setlocale() changing */
+
+# ifdef HAS_NEWLOCALE
+PERLVAR(G, C_locale_obj, locale_t)
+# endif
+
#endif
#ifdef DEBUGGING