From b359a89616bddf8fde1cad0592d5d24ceb222bd7 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@dbsgeo.com>
Date: Wed, 20 Feb 2013 10:46:56 -0800
Subject: [PATCH] make M_PI visible to msvc

---
 include/mapnik/well_known_srs.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/mapnik/well_known_srs.hpp b/include/mapnik/well_known_srs.hpp
index c7a6fe008..5efab629b 100644
--- a/include/mapnik/well_known_srs.hpp
+++ b/include/mapnik/well_known_srs.hpp
@@ -24,6 +24,7 @@
 #define MAPNIK_WELL_KNOWN_SRS_HPP
 
 // mapnik
+#include <mapnik/global.hpp> // for M_PI on windows
 #include <mapnik/enumeration.hpp>
 
 // boost