From c0da89a8e02190f172e6f53073827bbdf91d60eb Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Tue, 13 Oct 2009 21:13:23 -0700
Subject: [PATCH] notmuch-index-message: Avoid crashing when a message has no
 references.

It's obviously an innocent-enough message, and the right thing is
so easy to do.
---
 notmuch-index-message.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/notmuch-index-message.cc b/notmuch-index-message.cc
index 51c9f049..a0faf442 100644
--- a/notmuch-index-message.cc
+++ b/notmuch-index-message.cc
@@ -215,6 +215,9 @@ add_terms_references (Xapian::Document doc,
 
     refs = g_mime_object_get_header (GMIME_OBJECT (message), "references");
 
+    if (refs == NULL)
+	return;
+
     while (*refs) {
 	while (*refs && isspace (*refs))
 	    refs++;