From 914df660c423c078df20390a4b647edbe8fb712a Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Wed, 14 Oct 2009 17:24:28 -0700
Subject: [PATCH] Avoid segfault on message with no subject.

It's fun how turning a program loose on 500,000 messages will find
lots of littel corner cases.
---
 notmuch-index-message.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/notmuch-index-message.cc b/notmuch-index-message.cc
index 60370b62..5c73825b 100644
--- a/notmuch-index-message.cc
+++ b/notmuch-index-message.cc
@@ -253,6 +253,9 @@ skip_re_in_subject (const char *subject)
 {
     const char *s = subject;
 
+    if (subject == NULL)
+	return NULL;
+
     while (*s) {
 	while (*s && isspace (*s))
 	    s++;
-- 
2.26.2