Defined in /home/build/jenkins/workspace/RockBootstrap19/FLAVOR/master/label/DebianUnstable/dev/autoproj/remotes/orocos.toolchain/orocos.osdeps as

nokogiri:
    debian:
        squeeze:
        - gem: nokogiri
        - libxslt1-dev
        - libxml2-dev
        default: ruby-nokogiri
      ubuntu:
        default: ruby-nokogiri
        10.04,10.10,11.04,11.10:
        - libxslt1-dev
        - gem: nokogiri
      gentoo: dev-libs/libxslt
      fedora: rubygem-nokogiri