From fc8f854d47deea8ccb884898f7a42051caaefe42 Mon Sep 17 00:00:00 2001
From: Tom Tan <Tom.Tan@microsoft.com>
Date: Thu, 9 Sep 2021 15:07:02 -0700
Subject: [PATCH] Enable CMake to search the new package variable
 <PackageName>_ROOT (#975)

* Enable CMake to search the new package variable <PackageName>_ROOT

* CMake format
---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 16899ad521..ccc132a344 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,12 @@ cmake_minimum_required(VERSION 3.1)
 # versions of gtest
 cmake_policy(SET CMP0057 NEW)
 
+# See https://cmake.org/cmake/help/v3.12/policy/CMP0074.html required by certain
+# version of zlib which is dependeded by cURL.
+if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.12")
+  cmake_policy(SET CMP0074 NEW)
+endif()
+
 project(opentelemetry-cpp)
 
 # Mark variables as used so cmake doesn't complain about them