# File lib/chef/provider/package/rubygems.rb, line 364
        def is_omnibus?
          if RbConfig::CONFIG['bindir'] =~ %r!/opt/(opscode|chef)/embedded/bin!
            Chef::Log.debug("#{@new_resource} detected omnibus installation in #{RbConfig::CONFIG['bindir']}")
            # Omnibus installs to a static path because of linking on unix, find it.
            true
          elsif RbConfig::CONFIG['bindir'].sub(/^[\w]:/, '')  == "/opscode/chef/embedded/bin"
            Chef::Log.debug("#{@new_resource} detected omnibus installation in #{RbConfig::CONFIG['bindir']}")
            # windows, with the drive letter removed
            true
          else
            false
          end
        end