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

facets:
    ubuntu: gem
      debian:
        squeeze: gem
        default: ruby-facets
      fedora: rubygem-facets
      default:
        gem: facets