From 6e81004cfba05bfa1d7fea28a4861a144f27b55a Mon Sep 17 00:00:00 2001
From: Artem Pavlenko <artem@mapnik.org>
Date: Thu, 25 Apr 2024 10:55:04 +0100
Subject: [PATCH] add `const` qualifier to comparison operator

---
 include/mapnik/coord.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/mapnik/coord.hpp b/include/mapnik/coord.hpp
index 093c18636..0435249cd 100644
--- a/include/mapnik/coord.hpp
+++ b/include/mapnik/coord.hpp
@@ -94,7 +94,7 @@ struct coord<T, 2>
     }
 
     template<typename T2>
-    bool operator==(coord<T2, 2> const& rhs)
+    bool operator==(coord<T2, 2> const& rhs) const
     {
         return x == rhs.x && y == rhs.y;
     }