--- ruby-1.8.7-p160.orig/mkconfig.rb	2008-06-06 12:39:57.000000000 +0200
+++ ruby-1.8.7-p160/mkconfig.rb	2009-04-29 20:33:58.000000000 +0200
@@ -102,7 +102,7 @@
 
 drive = File::PATH_SEPARATOR == ';'
 
-prefix = '/lib/ruby/' + RUBY_VERSION.sub(/\.\d+$/, '') + '/' + RUBY_PLATFORM
+prefix = '/lib64/ruby/' + RUBY_VERSION.sub(/\.\d+$/, '') + '/' + RUBY_PLATFORM
 print "  TOPDIR = File.dirname(__FILE__).chomp!(#{prefix.dump})\n"
 print "  DESTDIR = ", (drive ? "TOPDIR && TOPDIR[/\\A[a-z]:/i] || " : ""), "'' unless defined? DESTDIR\n"
 print "  CONFIG = {}\n"