migrating to ruby 1.9.3 from 1.8.7

error in installing libxml-ruby gem

-sh-4.2$ bundle install
Fetching gem metadata from http://rubygems.org/.....
Fetching gem metadata from http://rubygems.org/..
Fetching git://github.com/ctran/annotate_models.git
remote: Counting objects: 890, done.
remote: Compressing objects: 100% (476/476), done.
remote: Total 890 (delta 414), reused 820 (delta 356)
Receiving objects: 100% (890/890), 189.25 KiB | 114 KiB/s, done.
Resolving deltas: 100% (414/414), done.
Fetching git://github.com/ryanb/nested_form.git
remote: Counting objects: 745, done.
remote: Compressing objects: 100% (453/453), done.
remote: Total 745 (delta 323), reused 635 (delta 240)
Receiving objects: 100% (745/745), 194.61 KiB | 76 KiB/s, done.
Resolving deltas: 100% (323/323), done.
Fetching git://github.com/rfc2822/spawn.git
remote: Counting objects: 413, done.
remote: Compressing objects: 100% (208/208), done.
remote: Total 413 (delta 219), reused 389 (delta 198)
Receiving objects: 100% (413/413), 53.16 KiB, done.
Resolving deltas: 100% (219/219), done.
Fetching git://github.com/adamcooper/vestal_versions.git
remote: Counting objects: 1440, done.
remote: Compressing objects: 100% (674/674), done.
remote: Total 1440 (delta 796), reused 1297 (delta 699)
Receiving objects: 100% (1440/1440), 182.50 KiB | 103 KiB/s, done.
Resolving deltas: 100% (796/796), done.
Fetching git://github.com/rmm/wash_out.git
remote: Counting objects: 469, done.
remote: Compressing objects: 100% (205/205), done.
remote: Total 469 (delta 241), reused 444 (delta 229)
Receiving objects: 100% (469/469), 60.73 KiB | 39 KiB/s, done.
Resolving deltas: 100% (241/241), done.
Installing rake (0.9.2.2) 
Installing PriorityQueue (0.1.2) with native extensions WARNING: PriorityQueue-0.1.2 has an invalid nil value for @cert_chain

Installing RedCloth (4.2.9) with native extensions 
Installing abstract (1.0.0) WARNING: abstract-1.0.0 has an invalid nil value for @cert_chain

Installing activesupport (3.0.10) 
Installing builder (2.1.2) WARNING: builder-2.1.2 has an invalid nil value for @cert_chain

Installing i18n (0.5.0) 
Installing activemodel (3.0.10) 
Installing erubis (2.6.6) 
Installing rack (1.2.5) 
Installing rack-mount (0.6.14) 
Installing rack-test (0.5.7) 
Installing tzinfo (0.3.33) 
Installing actionpack (3.0.10) 
Installing mime-types (1.18) 
Installing polyglot (0.3.3) 
Installing treetop (1.4.10) 
Installing mail (2.2.19) 
Installing actionmailer (3.0.10) 
Installing arel (2.0.10) 
Installing activerecord (3.0.10) 
Installing activeresource (3.0.10) 
Installing addressable (2.2.8) 
Installing httpclient (2.2.5) 
Installing soap4r (1.5.8) WARNING: soap4r-1.5.8 has an invalid nil value for @cert_chain

Installing adwords4r (19.0.0) 
Installing airbrake (3.0.4) 
Installing gyoku (0.4.4) 
Installing akami (1.0.0) 
Using annotate (2.4.1.beta1) from git://github.com/ctran/annotate_models.git (at a43c08f) 
Installing archive-tar-minitar (0.5.2) 
Installing awesome_print (1.0.2) 
Installing multi_json (1.3.5) 
Installing multi_xml (0.5.1) 
Installing httparty (0.8.3) 
Installing json (1.7.3) with native extensions 
Installing nokogiri (1.5.2) with native extensions 
Installing uuidtools (2.1.2) 
Installing aws-sdk (1.5.2) 
Installing bcrypt-ruby (3.0.1) with native extensions 
Installing cancan (1.6.5) 
Installing highline (1.6.12) 
Installing jruby-pageant (1.0.2) 
Installing net-ssh (2.4.0) 
Installing net-scp (1.0.4) 
Installing net-sftp (2.0.5) 
Installing net-ssh-gateway (1.1.0) 
Installing capistrano (2.12.0) 
Installing capistrano-ext (1.2.1) 
Installing ffi (1.0.11) with native extensions 
Installing childprocess (0.3.2) 
Installing json_pure (1.7.3) 
Installing rubyzip (0.9.8) 
Installing selenium-webdriver (2.8.0) 
Installing xpath (0.1.4) 
Installing capybara (1.1.1) 
Installing chronic (0.6.7) 
Installing numerizer (0.1.1) 
Installing chronic_duration (0.9.6) 
Installing cloudfiles (1.4.17) 
Installing cocaine (0.2.1) 
Installing coderay (1.0.6) 
Installing columnize (0.3.6) 
Installing deep_merge (1.0.0) 
Installing map (4.7.1) 
Installing constantinople (0.2.2) 
Installing crack (0.3.1) 
Installing diff-lcs (1.1.3) 
Installing gherkin (2.5.4) with native extensions 
Installing term-ansicolor (1.0.7) 
Installing cucumber (1.1.0) 
Installing cucumber-rails (1.1.1) 
Installing daemons (1.1.8) 
Installing dalli (1.1.5) 
Installing database_cleaner (0.6.7) 
Installing multipart-post (1.1.5) 
Installing databasedotcom (1.2.7) 
Installing delayed_job (2.1.3) 
Installing rspec-core (2.8.0) 
Installing rspec-expectations (2.8.0) 
Installing rspec-mocks (2.8.0) 
Installing rspec (2.8.0) 
Installing email_spec (1.2.1) 
Installing eventmachine (0.12.10) with native extensions 
Installing factory_girl (2.1.2) 
Installing rdoc (3.12) 
Installing thor (0.14.6) 
Installing railties (3.0.10) 
Installing factory_girl_rails (1.2.0) 
Installing faker (0.9.5) 
Installing faraday (0.8.0) 
Installing fast_xs (0.8.0) with native extensions 
Installing fattr (2.2.1) 
Using bundler (1.1.3) 
Installing rails (3.0.10) 
Installing formtastic (2.0.2) 
Installing growl (1.0.3) 
Installing haml (3.1.6) 
Installing hipchat (0.4.1) 
Installing hirb (0.6.2) 
Installing httpi (0.9.7) 
Installing jira4r (0.3.0) 
Installing jquery-rails (1.0.19) 
Installing json-schema (1.0.5) 
Installing launchy (2.0.5) 
Installing libxml-ruby (2.0.6) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/local/rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb 
extconf.rb:6: stack level too deep (SystemStackError)


Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/libxml-ruby-2.0.6 for inspection.
Results logged to /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/libxml-ruby-2.0.6/ext/libxml/gem_make.out
An error occured while installing libxml-ruby (2.0.6), and Bundler cannot continue.
Make sure that `gem install libxml-ruby -v '2.0.6'` succeeds before bundling.

So how do you solve this problem ?