From 0c802ea3e1544e1783ca9a7bafd30343f36214bb Mon Sep 17 00:00:00 2001
From: HD Moore <hd_moore@rapid7.com>
Date: Wed, 30 Sep 2009 03:25:39 +0000
Subject: [PATCH] Fixes #345. Adds a more stringent check for ::Encoding class
 being defined, should work around false positives with getbyte

git-svn-id: file:///home/svn/framework3/trunk@7095 4d416f70-5f16-0410-b530-b9f4589650da
---
 lib/rbreadline.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rbreadline.rb b/lib/rbreadline.rb
index b96cee5c79..a4dd79099f 100644
--- a/lib/rbreadline.rb
+++ b/lib/rbreadline.rb
@@ -4428,7 +4428,7 @@ module RbReadline
       end
    end
 
-   if defined? ''.getbyte
+  if(Object.const_defined?('Encoding') and Encoding.respond_to?('default_external'))
       @encoding = "X"      # ruby 1.9.x or greater
       @encoding_name = Encoding.default_external.to_s
    end