X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-smob.cc;h=590d299a503c41242c632a67bfa90b467eed6433;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=4fb42c9237d2a707fc0e0460d720e0de3cc57bc8;hpb=8a719f6eec1bd84269a55d1ec99adb3f17c04e64;p=lilypond.git

diff --git a/lily/grob-smob.cc b/lily/grob-smob.cc
index 4fb42c9237..590d299a50 100644
--- a/lily/grob-smob.cc
+++ b/lily/grob-smob.cc
@@ -3,12 +3,13 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "grob.hh"
 
 #include "paper-score.hh"
+#include "warn.hh"
 
 #include "ly-smobs.icc"
 
@@ -19,12 +20,11 @@ IMPLEMENT_TYPE_P (Grob, "ly:grob?");
 SCM
 Grob::mark_smob (SCM ses)
 {
+  ASSERT_LIVE_IS_ALLOWED ();
+  
   Grob *s = (Grob *) SCM_CELL_WORD_1 (ses);
   scm_gc_mark (s->immutable_property_alist_);
 
-  if (s->key_)
-    scm_gc_mark (s->key_->self_scm ());
-
   /* Do not mark the parents.  The pointers in the mutable
      property list form two tree like structures (one for X
      relations, one for Y relations).  Marking these can be done