From d6c187ca32f94bdd780287820182cd3d38f8a20e Mon Sep 17 00:00:00 2001
From: Tom Tan <Tom.Tan@microsoft.com>
Date: Mon, 2 Aug 2021 11:57:12 -0700
Subject: [PATCH] Fix warning of deprecation of putenv for MSVC (#935)

---
 exporters/otlp/test/otlp_grpc_exporter_test.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/exporters/otlp/test/otlp_grpc_exporter_test.cc b/exporters/otlp/test/otlp_grpc_exporter_test.cc
index 13acd5b9ce..d2b999382a 100644
--- a/exporters/otlp/test/otlp_grpc_exporter_test.cc
+++ b/exporters/otlp/test/otlp_grpc_exporter_test.cc
@@ -31,6 +31,10 @@
 
 #  include <gtest/gtest.h>
 
+#  if defined(_MSC_VER)
+#    define putenv _putenv
+#  endif
+
 using namespace testing;
 
 OPENTELEMETRY_BEGIN_NAMESPACE