From b5bd1cd686763d5bb3a48fe2b5accec4fcf679c6 Mon Sep 17 00:00:00 2001
From: Kai Krueger <kakrueger@gmail.com>
Date: Tue, 13 Aug 2013 09:59:18 -0600
Subject: [PATCH] Yet another attempt to fix the mapnik-config issue (probably
 not the last...)

---
 m4/ax_lib_mapnik.m4 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/m4/ax_lib_mapnik.m4 b/m4/ax_lib_mapnik.m4
index fcd2a52..48dcde0 100644
--- a/m4/ax_lib_mapnik.m4
+++ b/m4/ax_lib_mapnik.m4
@@ -88,6 +88,9 @@ AC_DEFUN([AX_LIB_MAPNIK],
 
         	    MAPNIK_CFLAGS="`$MAPNIK_CONFIG --cflags`"
                 MAPNIK_INCLUDES="`$MAPNIK_CONFIG --includes`"
+                if test $? -ne 0; then
+                    MAPNIK_INCLUDES=""
+                fi
         	    MAPNIK_LDFLAGS="`$MAPNIK_CONFIG --libs`"
 
         	    MAPNIK_VERSION=`$MAPNIK_CONFIG --version`