From a1d76a4fc3df9823a5ce7bfe2f3f8632f05ac644 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Thu, 27 May 2021 20:37:47 +0300
Subject: [PATCH] Only enable tests when root project

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0c8c4164f..a55f9d920 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,8 +41,10 @@ else()
 
 endif()
 
-if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
+# Only enable tests when we're the root project
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
 
+  include(CTest)
   add_subdirectory(test)
 
 endif()