package ifneeded extend 1.0 [list source [file join $dir extend-1.0.tm]]
package ifneeded functional 1.0 [list source [file join $dir functional-1.0.tm]]
package ifneeded know 1.0 [list source [file join $dir know-1.0.tm]]
package ifneeded memoize 1.0 [list source [file join $dir memoize-1.0.tm]]

package ifneeded file 1.0 [list source [file join $dir file-1.0.tm]]
package ifneeded interp 1.0 [list source [file join $dir interp-1.0.tm]]
package ifneeded namespace 1.0 [list source [file join $dir namespace-1.0.tm]]
