--- src/lib/rbosa.rb.orig	2008-10-04 14:48:31.000000000 +0900
+++ src/lib/rbosa.rb	2008-10-04 15:43:42.000000000 +0900
@@ -36,6 +36,7 @@
 
 # If libxml-ruby is not present, switch to REXML.
 USE_LIBXML = begin
+  raise LoadError, "SEGV will raise rubyosa with libxml2-ruby 0.7 or later"
   require 'xml/libxml'
 
   # libxml-ruby bug workaround.
