--- Devel-WeakRef-0.003/WeakRef.xs~	Sat Sep 20 21:42:05 1997
+++ Devel-WeakRef-0.003/WeakRef.xs	Wed Apr 18 03:47:59 2001
@@ -116,7 +116,7 @@
  if (SvROK(value)) {
    RETVAL=newRV_inc(SvRV(value));
  } else {
-   RETVAL=newSVsv(&sv_undef);
+   RETVAL=newSVsv(&PL_sv_undef);
  }
 OUTPUT:
  RETVAL