From 9138d64725d3aa1eb21f4dac8d9d32144076eccf Mon Sep 17 00:00:00 2001
From: artemp <artem@mapnik.org>
Date: Wed, 2 Mar 2016 17:15:05 +0100
Subject: [PATCH] value.hpp - fix error C2375: redefinition; different linkage

---
 include/mapnik/value.hpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/mapnik/value.hpp b/include/mapnik/value.hpp
index 649f3bff8..3bd59b4b7 100644
--- a/include/mapnik/value.hpp
+++ b/include/mapnik/value.hpp
@@ -38,11 +38,11 @@ namespace value_adl_barrier {
 
 class MAPNIK_DECL value : public value_base
 {
-    friend value operator+(value const&,value const&);
-    friend value operator-(value const&,value const&);
-    friend value operator*(value const&,value const&);
-    friend value operator/(value const&,value const&);
-    friend value operator%(value const&,value const&);
+    friend MAPNIK_DECL value operator+(value const&,value const&);
+    friend MAPNIK_DECL value operator-(value const&,value const&);
+    friend MAPNIK_DECL value operator*(value const&,value const&);
+    friend MAPNIK_DECL value operator/(value const&,value const&);
+    friend MAPNIK_DECL value operator%(value const&,value const&);
 
 public:
     value() = default;