X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fstaff-symbol-engraver.cc;h=55e118245f2c793ac5b2ff92e995595e639d586e;hb=528fe05abc9baab629c789428bd323f00a87f82d;hp=11f14ea1c6040dbbd5c544a777b9c066a2d0414b;hpb=5351678f4821374c9cbaf55b92cd35436d786c1d;p=lilypond.git

diff --git a/lily/staff-symbol-engraver.cc b/lily/staff-symbol-engraver.cc
index 11f14ea1c6..55e118245f 100644
--- a/lily/staff-symbol-engraver.cc
+++ b/lily/staff-symbol-engraver.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -50,7 +50,11 @@ protected:
 
 Staff_symbol_engraver::~Staff_symbol_engraver ()
 {
-  assert (!span_);
+  if (span_)
+    {
+      // Somehow finalize() was not called?
+      programming_error ("Have a pending spanner in destructor.");
+    }
 }
 
 Staff_symbol_engraver::Staff_symbol_engraver ()