From 90858b2e9941ad1d996556a5091710ff4d26de70 Mon Sep 17 00:00:00 2001
From: "v.audacity" <v.audacity@47890b92-0858-11df-a26f-8b716316a5bc>
Date: Thu, 19 Jul 2012 23:48:27 +0000
Subject: [PATCH] Clayton's patch for
 http://bugzilla.audacityteam.org/show_bug.cgi?id=557

---
 lib-src/sbsms/src/track.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib-src/sbsms/src/track.cpp b/lib-src/sbsms/src/track.cpp
index 5ae9d48c9..68cbf889f 100644
--- a/lib-src/sbsms/src/track.cpp
+++ b/lib-src/sbsms/src/track.cpp
@@ -41,7 +41,12 @@ Track :: ~Track() {
       i != point.end();
       ++i) {
     TrackPoint *tp = (*i);
-    if(tp) tp->destroy();
+    if(tp) {
+       if(tp->owner == this) {
+          tp->owner = NULL;
+       }
+       tp->destroy();
+    }
   }
 }
 
@@ -243,7 +248,7 @@ void Track :: synth(float *out,
 {
   float m0, m1;
   float w0, w1;
-  float dw;
+  // unused   float dw;
   float ph0, ph1;
   bool bTailStart;
   bool bTailEnd;