Ignore googletest warnings

Author: andreiavrammsd

tests/CMakeLists.txt

@@ -6,9 +6,16 @@ endif()
 include(FetchContent)
 
 if(NOT googletest_POPULATED)
+    # Suppress CMake policy warnings for old googletest CMakeLists.txt
+    # We need an older googletest version to be compatible with C++11
+    set(CMAKE_POLICY_WARNING_CMP0025 OFF)
+    set(CMAKE_POLICY_WARNING_CMP0048 OFF)
+    set(CMAKE_POLICY_WARNING_CMP0054 OFF)
+
     set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
     set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
     set(BUILD_GTEST_TESTS OFF CACHE BOOL "" FORCE)
+
     FetchContent_Declare(googletest URL https://github.com/google/googletest/archive/refs/tags/release-1.12.1.zip
                                         DOWNLOAD_EXTRACT_TIMESTAMP TRUE)
     FetchContent_MakeAvailable(googletest)