$NetBSD: patch-configure,v 1.1 2013/08/19 04:47:58 taca Exp $

* Not all Gem have source_index method.

--- configure.orig	2013-06-28 02:06:00.000000000 +0000
+++ configure
@@ -13935,7 +13935,10 @@ fi
         rescue LoadError
           ruby_glib2_gem = nil
         else
-          ruby_glib2_gem = Gem.source_index.find_name("glib2").first
+          begin
+            ruby_glib2_gem = Gem.source_index.find_name("glib2").first
+          rescue NoMethodError
+          end
         end
 	if ruby_glib2_gem.nil?
 	  begin
