From 457e3568fdcb594333e0e382491f1aeef56eded7 Mon Sep 17 00:00:00 2001
From: Daniel James <daniel@calamity.org.uk>
Date: Sat, 17 Nov 2012 10:30:37 +0000
Subject: [PATCH] Boostbook: Fix for libxslt 1.27.0.

libxslt now seems to think that $uppercase-letters and $lowercase-letters are
undefined at this point. I'm not sure if it's right, or if this is a regression
in libxslt, but it's easy enough to get working, and while it isn't ideal, it
isn't too problematic.

[SVN r81386]
---
 tools/boostbook | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/boostbook b/tools/boostbook
index dfc72f6d44..7853cc1d04 160000
--- a/tools/boostbook
+++ b/tools/boostbook
@@ -1 +1 @@
-Subproject commit dfc72f6d44e59a74271087c2f17ff2d8b8946c24
+Subproject commit 7853cc1d04a19cad07ffdee7dc69afc77e87a901