depends openbabel  &&
depends eigen2     &&
depends cmake      &&
depends qt4        &&
optional_depends glew '-DENABLE_GLSL=ON' '-DENABLE_GLSL=OFF' 'GLSL support' &&
optional_depends -sub PYTHON boost   \
                 '-DENABLE_PYTHON=TRUE'   \
                 '-DENABLE_PYTHON=FALSE' \
                 'python support'