$NetBSD: patch-Rakefile,v 1.2 2013/07/21 02:40:46 taca Exp $

* install into vendorlibdir
* staged installation

--- Rakefile.orig	2009-08-08 14:36:30.000000000 +0000
+++ Rakefile
@@ -1,11 +1,14 @@
 require 'rake'
 require 'rake/testtask'
 require 'rbconfig'
-include Config
+include RbConfig
 
 desc 'Install the memoize library (non-gem)'
 task :install do
-   sitelibdir = CONFIG['sitelibdir']
+   sitelibdir = CONFIG['vendorlibdir']
+   if (destdir = ENV['DESTDIR'])
+       sitelibdir = File.join(destdir, sitelibdir)
+   end
    file = 'lib/memoize.rb'
    FileUtils.cp(file, sitelibdir, :verbose => true)
 end