From 1fb23d124d36dba4281bcda7592df334ab276ede Mon Sep 17 00:00:00 2001
From: Robert Ramey <ramey@rrsd.com>
Date: Sat, 9 May 2015 08:24:46 -0700
Subject: [PATCH] correction to support visibility for MSVC

---
 include/boost/archive/detail/decl.hpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/boost/archive/detail/decl.hpp b/include/boost/archive/detail/decl.hpp
index d8ffb2e6..4b0ceec6 100644
--- a/include/boost/archive/detail/decl.hpp
+++ b/include/boost/archive/detail/decl.hpp
@@ -26,22 +26,25 @@
 #if (defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SERIALIZATION_DYN_LINK))
     #if defined(BOOST_ARCHIVE_SOURCE)
         #define BOOST_ARCHIVE_DECL BOOST_SYMBOL_EXPORT
-        #define BOOST_ARCHIVE_OR_WARCHIVE_DECL  BOOST_SYMBOL_EXPORT
     #else
         #define BOOST_ARCHIVE_DECL BOOST_SYMBOL_IMPORT
     #endif
     #if defined(BOOST_WARCHIVE_SOURCE)
         #define BOOST_WARCHIVE_DECL BOOST_SYMBOL_EXPORT
-        #define BOOST_ARCHIVE_OR_WARCHIVE_DECL BOOST_SYMBOL_EXPORT
     #else
         #define BOOST_WARCHIVE_DECL BOOST_SYMBOL_IMPORT
-        #define BOOST_ARCHIVE_OR_WARCHIVE_DECL  BOOST_SYMBOL_IMPORT
     #endif
     #if !defined(BOOST_WARCHIVE_SOURCE) && !defined(BOOST_ARCHIVE_SOURCE)
         #define BOOST_ARCHIVE_OR_WARCHIVE_DECL BOOST_SYMBOL_IMPORT
     #endif
 #endif
 
+#if defined(BOOST_WARCHIVE_SOURCE) || defined(BOOST_ARCHIVE_SOURCE)
+    #define BOOST_ARCHIVE_OR_WARCHIVE_DECL BOOST_SYMBOL_EXPORT
+#else
+    #define BOOST_ARCHIVE_OR_WARCHIVE_DECL BOOST_SYMBOL_IMPORT
+#endif
+
 #if ! defined(BOOST_ARCHIVE_DECL)
     #define BOOST_ARCHIVE_DECL
 #endif