From 2130feadcfdbe0268b1afe6b050e000c83120aba Mon Sep 17 00:00:00 2001
From: Matt Hauck <matthauck@gmail.com>
Date: Tue, 11 Jul 2017 11:02:24 -0700
Subject: Fix map_field_inl.h for gcc 4.1

---
 src/google/protobuf/map_field_inl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/google/protobuf/map_field_inl.h b/src/google/protobuf/map_field_inl.h
index 0cfed72f..e317b5ed 100644
--- a/src/google/protobuf/map_field_inl.h
+++ b/src/google/protobuf/map_field_inl.h
@@ -252,9 +252,9 @@ template <typename Derived, typename Key, typename T,
           WireFormatLite::FieldType kValueFieldType, int default_enum_value>
 void MapField<Derived, Key, T, kKeyFieldType, kValueFieldType,
               default_enum_value>::Swap(MapField* other) {
-  std::swap(MapFieldBase::repeated_field_, other->repeated_field_);
+  std::swap(this->MapFieldBase::repeated_field_, other->repeated_field_);
   impl_.Swap(&other->impl_);
-  std::swap(MapFieldBase::state_, other->state_);
+  std::swap(this->MapFieldBase::state_, other->state_);
 }
 
 template <typename Derived, typename Key, typename T,
-- 
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