add cturtle-style link flags for exported libraries
add cturtle-style link flags for exported libraries

niosus/velodyne,pierriko/velodyne,davidlandry93/velodyne,vrabaud/velodyne,pierriko/velodyne,davidlandry93/velodyne,wenjiebit/velodyne,jpgr87/velodyne,davidlandry93/velodyne,vrabaud/velodyne,pierriko/velodyne,vrabaud/velodyne,wenjiebit/velodyne,niosus/velodyne,jpgr87/velodyne,lemiant/velodyne,lemiant/velodyne,jpgr87/velodyne,wenjiebit/velodyne,niosus/velodyne,lemiant/velodyne