Prevent segfault during layout destruction

[r2c2.git] / source / libr2c2 / trackattachment.h

diff --git a/source/libr2c2/trackattachment.h b/source/libr2c2/trackattachment.h
index 8551250ae7507dc2db2d65ab09a7239a1dd71ed4..d02a443d823a6e77a123f7a56246c453669985fa 100644 (file)
--- a/source/libr2c2/trackattachment.h
+++ b/source/libr2c2/trackattachment.h
@@ -6,7 +6,7 @@
 
 namespace R2C2 {
 
-class TrackAttachment: public Object
+class TrackAttachment: public Object, public sigc::trackable
 {
 protected:
        TrackIter track;
@@ -27,6 +27,9 @@ protected:
 
 public:
        virtual Track *get_parent() const { return track.track(); }
+
+private:
+       void object_removed(Object &);
 };
 
 } // namespace R2C2