ports/136075: Could not use ruby-libxml

[Taro]

>Number:         136075
>Category:       ports
>Synopsis:       Could not use ruby-libxml
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jun 26 20:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Taro
>Release:        7.2-RELEASE
>Organization:
>Environment:
FreeBSD Pym 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Mon May  4 09:21:11 EEST 2009     root at Otaku.local:/usr/obj/mnt/big/src7/sys/PYM  i386
>Description:
Could not make use libxml-ruby gem

Got error when required libxml-ruby:
require 'libxml'
LoadError: no such file to load -- libxml
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
        from (irb):25

Package ruby18-libxml-1.1.3 is installed:
pkg_info -Lx ruby18-libxml-1.1.3
Information for ruby18-libxml-1.1.3:

Files:
/usr/local/lib/ruby/site_ruby/1.8/i386-freebsd7/xml/libxml_ruby.so
/usr/local/lib/ruby/site_ruby/1.8/xml/libxml.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/attr.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/attr_decl.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/attributes.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/document.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/error.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/hpricot.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/html_parser.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/namespace.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/namespaces.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/node.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/ns.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/parser.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/properties.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/reader.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/sax_callbacks.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/sax_parser.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/tree.rb
/usr/local/lib/ruby/site_ruby/1.8/libxml/xpath_object.rb
/usr/local/libdata/ldconfig/ruby18-libxml
>How-To-Repeat:
Open irb console,
try to require libxml lib:
require 'libxml'
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: