--- CMakeLists.txt.orig	2020-09-14 03:50:02.000000000 +0800
+++ CMakeLists.txt	2023-03-07 23:46:49.000000000 +0800
@@ -79,7 +79,7 @@
     enable_testing()
 
     # Points to the root of Google Test
-    set(GTEST_DIR ${PROJECT_SOURCE_DIR}/libs/benchmark/googletest/googletest)
+    set(GTEST_DIR @GTESTDIR@)
 
     # add test subdirectory
     add_subdirectory(${PROJECT_SOURCE_DIR}/test ${PROJECT_BINARY_DIR}/test)