$NetBSD: patch-ah,v 1.1 2001/12/30 16:21:52 taca Exp $

--- lib/weakref.rb.orig	Thu Jul 27 18:49:33 2000
+++ lib/weakref.rb
@@ -60,7 +60,11 @@
     unless ID_MAP[@__id]
       raise RefError, "Illegal Reference - probably recycled", caller(2)
     end
-    ObjectSpace._id2ref(@__id)
+    begin
+      ObjectSpace._id2ref(@__id)
+    rescue RangeError
+      raise RefError, "Illegal Reference - probably recycled", caller(2)
+    end
   end
 
   def weakref_alive?