add_subdirectory( cantor )
add_subdirectory( kalgebra )
add_subdirectory( kalzium )
add_subdirectory( kbruch )
add_subdirectory( kig )
add_subdirectory( kmplot )
add_subdirectory( kstars )
add_subdirectory( kturtle )
add_subdirectory( marble )
add_subdirectory( rocs )
