diff -up alexandria-0.6.8/util/rake/fileinstall.rb.fix alexandria-0.6.8/util/rake/fileinstall.rb

--- alexandria-0.6.8/util/rake/fileinstall.rb.fix	2012-03-23 12:15:39.827228029 -0400

+++ alexandria-0.6.8/util/rake/fileinstall.rb	2012-03-23 12:16:01.774011895 -0400

@@ -185,12 +185,12 @@ class FileInstallTask < Rake::TaskLib

   private

   def calculate_ruby_dir

-    ruby_prefix = Config::CONFIG['prefix']

+    ruby_prefix = RbConfig::CONFIG['prefix']

     if @install_to_rubylibdir

-      ruby_libdir = Config::CONFIG['rubylibdir']

+      ruby_libdir = RbConfig::CONFIG['rubylibdir']

     else

-      ruby_libdir = Config::CONFIG['sitelibdir']

+      ruby_libdir = RbConfig::CONFIG['sitelibdir']

     end

     if ENV.has_key?('RUBYLIBDIR')

       ruby_libdir = ENV['RUBYLIBDIR']

--- alexandria-0.6.9/lib/alexandria/ui/iconview_tooltips.rb.rbconfig	2011-11-19 23:47:12.000000000 +0900

+++ alexandria-0.6.9/lib/alexandria/ui/iconview_tooltips.rb	2015-01-19 13:58:03.414409764 +0900

@@ -68,7 +68,7 @@

   def workaround_safe_from_tooltip_crashes

     begin

       require 'rbconfig'

-      arch_is_x86_64 = Config::CONFIG['arch'] =~ /x86_64/i

+      arch_is_x86_64 = RbConfig::CONFIG['arch'] =~ /x86_64/i

       ruby_gnome2_atleast017 = false

       if Gtk::BINDING_VERSION and Gtk::BINDING_VERSION.instance_of? Array

         major, minor, micro = Gtk::BINDING_VERSION