Checks selection state and emits 'selSelectionDone' or 'selSelectionCancel'
Should be called by after non-interactive selection.
*/
-void GLViewer_Selector2d::checkSelection( int selBefore, bool append, int aStatus )
+void GLViewer_Selector2d::checkSelection( int selBefore, bool /*append*/, int aStatus )
{
int selAfter = numSelected();
if ( selBefore > 0 && selAfter < 1 )