commradio: improvements for atis speech

[flightgear.git] / src / Navaids / PositionedOctree.hxx

diff --git a/src/Navaids/PositionedOctree.hxx b/src/Navaids/PositionedOctree.hxx
index 167f37a0d719ec94e6522bc0df4bf5a2ddab7fed..1e04d6fd25bf311c0a331464ad7efa3c8fbad66d 100644 (file)
--- a/src/Navaids/PositionedOctree.hxx
+++ b/src/Navaids/PositionedOctree.hxx
@@ -153,6 +153,7 @@ namespace Octree
     virtual void visitForLines(const SGVec3d& aPos, double aCutoff,
                          PolyLineList& aLines,
                          FindLinesDeque& aQ) const = 0;
+    virtual ~Node() {}
   protected:
     Node(const SGBoxd &aBox, int64_t aIdent) :
     _ident(aIdent),