From 562f9d256d30fdd2a4200109e0f79ba57d05f488 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Mon, 12 Feb 2018 18:43:32 -0700
Subject: [PATCH] Fix GTest workaround on MSVC

---
 cmake/HandleGTest.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmake/HandleGTest.cmake b/cmake/HandleGTest.cmake
index 9123babf..3cf8e18b 100644
--- a/cmake/HandleGTest.cmake
+++ b/cmake/HandleGTest.cmake
@@ -27,7 +27,9 @@ macro(build_external_gtest)
   # -Werror=unused-function fires during the build on OS X. This is a temporary
   # workaround to keep our travis bots from failing. It should be removed
   # once gtest is fixed.
-  list(APPEND GTEST_FLAGS "-Wno-unused-function")
+  if (NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+    list(APPEND GTEST_FLAGS "-Wno-unused-function")
+  endif()
   split_list(GTEST_FLAGS)
   ExternalProject_Add(googletest
       EXCLUDE_FROM_ALL ON