From 5c65dadd72cb6a59deec984e0babd94fc58ccf10 Mon Sep 17 00:00:00 2001
From: Jiri Drbalek <jiri.drbalek@gmail.com>
Date: Thu, 19 Mar 2015 12:32:30 +0100
Subject: [PATCH] add comment about compatibility

---
 include/mapnik/enumeration.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/mapnik/enumeration.hpp b/include/mapnik/enumeration.hpp
index 69e81e946..53dcd8a40 100644
--- a/include/mapnik/enumeration.hpp
+++ b/include/mapnik/enumeration.hpp
@@ -177,6 +177,8 @@ public:
      * */
     void from_string(std::string const& str)
     {
+        // TODO: Enum value strings with underscore are deprecated in Mapnik 3.x
+        // and support will be removed in Mapnik 4.x.
         std::string str_copy(str);
         std::replace(str_copy.begin(), str_copy.end(), '_', '-');
         for (unsigned i = 0; i < THE_MAX; ++i)