From 5d1bf24ececf8eb98890afcb2dbaef79e69f9d7b Mon Sep 17 00:00:00 2001
From: Graham Percival <graham@percival-music.ca>
Date: Tue, 14 Dec 2010 15:31:33 +0000
Subject: Fix bookpart identifier crash with page-marker (1440)

Patch from Neil, with assistance from Carl.  I'm committing this
now so that I can get another release out.
---
 lily/page-turn-page-breaking.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lily/page-turn-page-breaking.cc')

diff --git a/lily/page-turn-page-breaking.cc b/lily/page-turn-page-breaking.cc
index 9338a38bfc..e57c0cbf2f 100644
--- a/lily/page-turn-page-breaking.cc
+++ b/lily/page-turn-page-breaking.cc
@@ -269,6 +269,9 @@ Page_turn_page_breaking::make_lines (vector<Break_node> *psoln)
 SCM
 Page_turn_page_breaking::make_pages (vector<Break_node> const &soln, SCM systems)
 {
+  if (scm_is_null (systems))
+    return SCM_EOL;
+
   vector<vsize> lines_per_page;
   for (vsize i = 0; i < soln.size (); i++)
     {
-- 
cgit v1.2.3