From e39cb740ca96da2b984c390b52c1c56f440015c3 Mon Sep 17 00:00:00 2001
From: yang-g <yangg@google.com>
Date: Wed, 10 Feb 2016 23:50:08 -0800
Subject: [PATCH] Add a dummy reference to prevent unused variable warning if
 there is no rpc method defined.

---
 src/compiler/cpp_generator.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index d3d6224de29..97295bed451 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc
@@ -1106,6 +1106,7 @@ void PrintSourceService(grpc::protobuf::io::Printer *printer,
 
   printer->Print(*vars, "$ns$$Service$::Service::Service() {\n");
   printer->Indent();
+  printer->Print(*vars, "(void)$prefix$$Service$_method_names;\n");
   for (int i = 0; i < service->method_count(); ++i) {
     const grpc::protobuf::MethodDescriptor *method = service->method(i);
     (*vars)["Idx"] = as_string(i);