From: nobuyoshi nakada <nobuyoshi.nakada@...>
Date: 2005-12-13T10:48:38+09:00
Subject: Re: ruby 1.8.4 rc breaks alias_method/rails in bad ways

Hi,

At Tue, 13 Dec 2005 05:36:44 +0900,
James Edward Gray II wrote in [ruby-core:06877]:
> > I'm *assuming* the change is that we've updated the vendor/rails/  
> > directory to a more recent version.  I'm still running Ruby 1.8.2,  
> > but was when I was seeing the errors too.  Might make sure your  
> > Rails is up-to-date.
> 
> As usual, I was wrong.  The /vendor/rails/ is the same version.  My  
> partner changed the constant definitions to avoid the warnings:
> 
> OUR_CONST = ... unless const_defined? "OUR_CONST"

Similar workaround could work to wrap methods.

  alias foo bar unless method_defined?(:foo)

-- 
Nobu Nakada