X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fgrob-closure.cc;h=b2d0160adaf175942ff0e1e5a057cf7d57ff1dff;hb=d4ce4ffb6c483324393e6427a53db24a73bc60e2;hp=9dddc0616f85a11241992a4e39d1a4967253e910;hpb=0326ce088e5d81235df8ff360a7f22f61fa36a09;p=lilypond.git

diff --git a/lily/grob-closure.cc b/lily/grob-closure.cc
index 9dddc0616f..b2d0160ada 100644
--- a/lily/grob-closure.cc
+++ b/lily/grob-closure.cc
@@ -75,9 +75,14 @@ chain_offset_callback (Grob *g, SCM proc, Axis a)
     data = ly_make_simple_closure (scm_list_1  (data));
   else if (is_simple_closure (data))
     data = simple_closure_expression (data);
-  else if (!scm_is_number (data))
-    data = scm_from_int (0);
-  
+  else
+    /*
+      Data may be nonnumber. In that case, it is assumed to be
+      undefined.
+    */
+
+    data = SCM_UNDEFINED;
+
   SCM expr = scm_list_2 (proc, data);
   g->set_property (axis_offset_symbol (a),