*** empty log message ***

diff --git a/lily/simple-spacer.cc b/lily/simple-spacer.cc
index cada127e14cdd28f334c4268b7f6adc32ced487c..515d3c0eebff23c295ea893d0fdb541307bb28a1 100644 (file)
--- a/lily/simple-spacer.cc
+++ b/lily/simple-spacer.cc
@@ -530,8 +530,11 @@ Simple_spacer_wrapper::add_columns (Link_array<Grob> const &icols)
          && !to_boolean  (cols[i]->get_property ("allow-outside-line")))
        {
          Interval e = cols[i]->extent (cols[i], X_AXIS);
-         spacer_->add_rod (i, cols.size()-1, e[RIGHT]);
-         spacer_->add_rod (0, i, e[LEFT]);
+         if (!e.is_empty())
+           {
+             spacer_->add_rod (i, cols.size()-1, e[RIGHT]);
+             spacer_->add_rod (0, i, e[LEFT]);
+           }
        }
     }
 }