X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-smob.cc;h=730faa780eafe2f6676a44b276f664db9a390a8f;hb=6df5aa85be60a3f0dfa70b466adeacae2b1c05d1;hp=44c16e149fe9b478f55ad39615073718eae03da8;hpb=3cdeec5f8598bfaa1dd98baa31a1da8d601eeec5;p=lilypond.git

diff --git a/lily/grob-smob.cc b/lily/grob-smob.cc
index 44c16e149f..730faa780e 100644
--- a/lily/grob-smob.cc
+++ b/lily/grob-smob.cc
@@ -9,6 +9,7 @@
 #include "grob.hh"
 
 #include "paper-score.hh"
+#include "warn.hh"
 
 #include "ly-smobs.icc"
 
@@ -19,6 +20,8 @@ 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_);