From 1e024984e73f3317ca85a784df91ccc478e93426 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@dbsgeo.com>
Date: Sat, 5 Oct 2013 17:37:23 -0700
Subject: [PATCH] correct signed/unsigned comparison in image filter visitor

---
 include/mapnik/image_filter.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/mapnik/image_filter.hpp b/include/mapnik/image_filter.hpp
index af51482da..e72ac6db0 100644
--- a/include/mapnik/image_filter.hpp
+++ b/include/mapnik/image_filter.hpp
@@ -785,8 +785,8 @@ struct filter_radius_visitor : boost::static_visitor<void>
 
     void operator () (agg_stack_blur const& op)
     {
-        if (op.rx > radius_) radius_ = op.rx;
-        if (op.ry > radius_) radius_ = op.ry;
+        if (static_cast<int>(op.rx) > radius_) radius_ = static_cast<int>(op.rx);
+        if (static_cast<int>(op.ry) > radius_) radius_ = static_cast<int>(op.ry);
     }
 };