$OpenBSD: patch-include_mapnik_css_color_grammar_hpp,v 1.1 2015/07/01 08:45:19 jasper Exp $

From 76f111cc97a86cb029682f92b3d212f105f46aa6 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@dbsgeo.com>
Date: Sat, 27 Jul 2013 01:57:24 -0400
Subject: [PATCH] support optionally compiling with -std=c++11 on OSX / clang / apple libc++ / boost 1.53 - refs #1683

--- include/mapnik/css_color_grammar.hpp.orig	Tue Jun  4 03:35:27 2013
+++ include/mapnik/css_color_grammar.hpp	Mon Jun 29 09:08:51 2015
@@ -125,7 +125,11 @@ struct alpha_conv_impl
 
 struct hsl_conv_impl
 {
+#ifdef BOOST_SPIRIT_USE_PHOENIX_V3
+    template<typename T>
+#else
     template<typename T0,typename T1, typename T2, typename T3>
+#endif
     struct result
     {
         typedef void type;
