Nokogiri Libxml2 is missing

Desplegando proyecto basado en Ruby. Ejecutamos

# bundle install

y nos da el error

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-1.9.3-p362/bin/ruby extconf.rb
checking for libxml/parser.h... no
-----
libxml2 is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.

Continue reading