From a434bfc232de09de7d3ebc963290c960462212cb Mon Sep 17 00:00:00 2001
From: Aurimas Liutikas <aurimas@google.com>
Date: Wed, 22 Feb 2017 14:14:13 -0800
Subject: Fix compiler warnings about unused variables in
 generated_message_reflection.h

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

diff --git a/src/google/protobuf/generated_message_reflection.h b/src/google/protobuf/generated_message_reflection.h
index 2e65787f..8b1362a2 100644
--- a/src/google/protobuf/generated_message_reflection.h
+++ b/src/google/protobuf/generated_message_reflection.h
@@ -674,6 +674,8 @@ class LIBPROTOBUF_EXPORT GeneratedMessageReflection PROTOBUF_FINAL
 template<typename To, typename From>
 inline To dynamic_cast_if_available(From from) {
 #if defined(GOOGLE_PROTOBUF_NO_RTTI) || (defined(_MSC_VER)&&!defined(_CPPRTTI))
+  // Avoid the compiler warning about unused variables.
+  (void)from;
   return NULL;
 #else
   return dynamic_cast<To>(from);
-- 
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