    # File lib/compass/browser_support.rb, line 21
        def add_support(function, *aspects)
          aspects.each do |aspect|
            unless ASPECTS.include?(aspect)
              Compass::Util.compass_warn "Unknown support aspect: #{aspect}"
              next
            end
            unless supports?(function, aspect)
              SIMPLE_FUNCTIONS[function.to_s] ||= []
              SIMPLE_FUNCTIONS[function.to_s] << aspect.to_s
            end
          end
        end