$NetBSD: patch-af,v 1.2 2008/09/15 08:43:44 taca Exp $

--- lib/rubygems/commands/uninstall_command.rb.orig	2008-02-24 11:26:47.000000000 +0900
+++ lib/rubygems/commands/uninstall_command.rb
@@ -40,6 +40,11 @@ module Gem
           options[:bin_dir] = File.expand_path(value)
         end
 
+        add_option('-B', '--install-root DIR',
+                   'Root directory for gem files') do |value, options|
+          options[:install_root] = File.expand_path(value)
+        end
+
         add_version_option
         add_platform_option
       end
