From 3f705cb7a6f45ba3145a3b5e2bc3b410e41760fa Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <moritz@bunkus.org>
Date: Sat, 30 Aug 2008 12:49:25 +0000
Subject: [PATCH] Fail configure if the Boost regex library is not found.

---
 ac/boost.m4 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ac/boost.m4 b/ac/boost.m4
index caaeeaa79..a45d9a8d9 100644
--- a/ac/boost.m4
+++ b/ac/boost.m4
@@ -1,2 +1,6 @@
 AX_BOOST_BASE()
 AX_BOOST_REGEX()
+
+if test x"$ax_cv_boost_regex" != "xyes"; then
+  AC_MSG_ERROR(The Boost regex library was not found.)
+fi