# File lib/autobuild/packages/autotools.rb, line 90
        def prepare
            file "#{builddir}/config.status" => regen do
                ensure_dependencies_installed
                configure
            end

            source_tree srcdir, builddir
            file buildstamp => [ srcdir, "#{builddir}/config.status" ] do 
                ensure_dependencies_installed
                build
            end

            file installstamp => buildstamp do 
                install
                Autobuild.update_environment(prefix)
            end
        end