From: David Kastrup <dak@gnu.org>
Date: Mon, 14 Sep 2015 15:35:02 +0000 (+0200)
Subject: Avoid segfault for cleared vertical-skylines in add_grobs_of_one_priority
X-Git-Tag: release/2.19.28-1~5^2~28
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=27fee9a13be0d4754d3e30f3edd6d21d708a24d5;p=lilypond.git

Avoid segfault for cleared vertical-skylines in add_grobs_of_one_priority
---

diff --git a/lily/axis-group-interface.cc b/lily/axis-group-interface.cc
index c9c56858a1..e842cb6d80 100644
--- a/lily/axis-group-interface.cc
+++ b/lily/axis-group-interface.cc
@@ -797,7 +797,7 @@ add_grobs_of_one_priority (Grob *me,
           last_end[dir] = x_extent[RIGHT];
 
           Skyline_pair *v_orig = unsmob<Skyline_pair> (elt->get_property ("vertical-skylines"));
-          if (v_orig->is_empty ())
+          if (!v_orig || v_orig->is_empty ())
             continue;
 
           // Find the riders associated with this grob, and merge their