From db5b2bd13ad1c033f56b33b51742dcdb026aa776 Mon Sep 17 00:00:00 2001
From: Mohamed Heikal <mheikal@chromium.org>
Date: Wed, 14 Aug 2019 15:52:27 -0400
Subject: [PATCH] clang-cl requires fully qualified name for friend class
 declarations

---
 src/google/protobuf/map_field.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/google/protobuf/map_field.h b/src/google/protobuf/map_field.h
index 3314f4e75a..69039d914c 100644
--- a/src/google/protobuf/map_field.h
+++ b/src/google/protobuf/map_field.h
@@ -156,7 +156,7 @@ class PROTOBUF_EXPORT MapFieldBase {
   friend class ContendedMapCleanTest;
   friend class GeneratedMessageReflection;
   friend class MapFieldAccessor;
-  friend class DynamicMessage;
+  friend class ::PROTOBUF_NAMESPACE_ID::DynamicMessage;
 
   // Virtual helper methods for MapIterator. MapIterator doesn't have the
   // type helper for key and value. Call these help methods to deal with