From 9094bf0f7e638f68cae72581ae8416e7c2721b41 Mon Sep 17 00:00:00 2001
From: Silvio Traversaro <pegua1@gmail.com>
Date: Mon, 12 Jun 2017 17:09:55 +0200
Subject: [PATCH] Export symbols used in inline functions

fixed_address_empty_string symbol is used in an inline function.
We have to export it to avoid undefined reference link errors.
---
 src/google/protobuf/generated_message_util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/google/protobuf/generated_message_util.h b/src/google/protobuf/generated_message_util.h
index 44174466a8..a7154b4015 100644
--- a/src/google/protobuf/generated_message_util.h
+++ b/src/google/protobuf/generated_message_util.h
@@ -164,7 +164,7 @@ class ExplicitlyConstructed {
 
 // Default empty string object. Don't use this directly. Instead, call
 // GetEmptyString() to get the reference.
-extern ExplicitlyConstructed< ::std::string> fixed_address_empty_string;
+LIBPROTOBUF_EXPORT extern ExplicitlyConstructed< ::std::string> fixed_address_empty_string;
 LIBPROTOBUF_EXPORT extern ProtobufOnceType empty_string_once_init_;
 LIBPROTOBUF_EXPORT void InitEmptyString();