//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#include STL_STRING
#include <simgear/debug/logstream.hxx>
+#include <simgear/structure/SGReferenced.hxx>
+#include <simgear/structure/SGSharedPtr.hxx>
#include <plib/sg.h>
* manages everything we need to know for an individual sound sample
*/
-class SGSoundSample {
+class SGSoundSample : public SGReferenced {
private: