feat: uplift gtest to 1.12.1

.gitignore

@@ -33,6 +33,10 @@ bld/
 [Mm][Ss][Vv][Cc]*
 [Gg][Cc][Cc]*
 
+#CLion
+.idea/
+/*build*/
+
 #Visual studio code
 .vscode
 

3rdParty/gtest/CMakeLists.txt

@@ -1,78 +1,23 @@
-#parent must define VERSION_GTEST
-
-cmake_minimum_required(VERSION 3.0.0 FATAL_ERROR)
-PROJECT(gtest)
-STRING(TOUPPER ${PROJECT_NAME} PROJECT_NAME_UPPER)
-
-SET(VERSION_${PROJECT_NAME_UPPER} "?.?.?" CACHE STRING "${PROJECT_NAME} version string")
-SET(${PROJECT_NAME_UPPER}_DIR ${CMAKE_CURRENT_BINARY_DIR}/src CACHE STRING "${PROJECT_NAME} source directory")
-
-# ------------------------------------------------------------------------------------------------------------------------------
-# LIBRARY LOCATION: Library location for various build types/generators
-# ------------------------------------------------------------------------------------------------------------------------------
-
-if((${CMAKE_GENERATOR} STREQUAL "Ninja") OR (${CMAKE_GENERATOR} STREQUAL "Unix Makefiles"))
-	SET(LIB_DIR ${${PROJECT_NAME_UPPER}_DIR}/googletest/${CMAKE_FIND_LIBRARY_PREFIXES}${PROJECT_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX})
-else() # visual studio variants
-	SET(DEBUG_LIB ${${PROJECT_NAME_UPPER}_DIR}/googletest/Debug/${CMAKE_FIND_LIBRARY_PREFIXES}${PROJECT_NAME}${CMAKE_FIND_LIBRARY_SUFFIXES})
-	SET(RELEASE_LIB ${${PROJECT_NAME_UPPER}_DIR}/googletest/Release/${CMAKE_FIND_LIBRARY_PREFIXES}${PROJECT_NAME}${CMAKE_FIND_LIBRARY_SUFFIXES})
-	SET(MINSIZEREL_LIB ${${PROJECT_NAME_UPPER}_DIR}/googletest/MinSizeRel/${CMAKE_FIND_LIBRARY_PREFIXES}${PROJECT_NAME}${CMAKE_FIND_LIBRARY_SUFFIXES})
-	SET(RELWITHDEBINFO_LIB ${${PROJECT_NAME_UPPER}_DIR}/googletest/RelWithDebInfo/${CMAKE_FIND_LIBRARY_PREFIXES}${PROJECT_NAME}${CMAKE_FIND_LIBRARY_SUFFIXES})
-	SET(LIB_DIR ${DEBUG_LIB} ${RELEASE_LIB} ${MINSIZEREL_LIB} ${RELWITHDEBINFO_LIB})
-endif()
-
-# ------------------------------------------------------------------------------------------------------------------------------
-# EXTERNAL PROJECT: Definition of the external project to build the third-party library
-# ------------------------------------------------------------------------------------------------------------------------------
-
-IF(WIN32)
-	SET(WINDOWS_CMAKE_ARGS -DCMAKE_CXX_FLAGS=/D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING)
-ENDIF(WIN32)
-
-include(ExternalProject)
-ExternalProject_Add(
-	${PROJECT_NAME}-ext
-	URL ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}-${VERSION_${PROJECT_NAME_UPPER}}.zip
-	URL_MD5 adfafc8512ab65fd3cf7955ef0100ff5
-	DOWNLOAD_DIR ${${PROJECT_NAME_UPPER}_DIR}
-	SOURCE_DIR ${${PROJECT_NAME_UPPER}_DIR}
-	CMAKE_ARGS -DBUILD_GMOCK=OFF -DBUILD_GTEST=ON -Dgtest_force_shared_crt=ON ${WINDOWS_CMAKE_ARGS}
-	INSTALL_COMMAND ""
-	BUILD_IN_SOURCE 1
-	BUILD_BYPRODUCTS ${LIB_DIR}
-)
-
-# ------------------------------------------------------------------------------------------------------------------------------
-# EXPORT VARIABLES: Variables intended to help other projects find and use this library
-# ------------------------------------------------------------------------------------------------------------------------------
-
-# Library
-add_library(${PROJECT_NAME} STATIC IMPORTED GLOBAL)
-if((${CMAKE_GENERATOR} STREQUAL "Ninja") OR (${CMAKE_GENERATOR} STREQUAL "Unix Makefiles"))
-	SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES 
-		IMPORTED_LOCATION ${LIB_DIR}
-	)
-else() # visual studio variants
-	SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES
-		IMPORTED_LOCATION_DEBUG ${DEBUG_LIB}
-		IMPORTED_LOCATION_RELEASE ${RELEASE_LIB}
-		IMPORTED_LOCATION_MINSIZEREL ${MINSIZEREL_LIB}
-		IMPORTED_LOCATION_RELWITHDEBINFO ${RELWITHDEBINFO_LIB}
-	)
-ENDIF()
-
-# add pthreads on non-windows platforms
-IF(WIN32)
-ELSE(WIN32)
-	SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES 
-		INTERFACE_LINK_LIBRARIES -pthread
-	)
-ENDIF(WIN32)
-
-add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}-ext)
-
-SET(INCLUDE_DIR ${${PROJECT_NAME_UPPER}_DIR}/googletest/include)
-FILE(MAKE_DIRECTORY ${INCLUDE_DIR})
-SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${INCLUDE_DIR})
-
-MARK_AS_ADVANCED(${PROJECT_NAME_UPPER}_DIR)
+if (NOT TARGET googletest)
+    # Avoid warning about DOWNLOAD_EXTRACT_TIMESTAMP in CMake 3.24:
+    if (POLICY CMP0135)
+        cmake_policy(SET CMP0135 NEW)
+        set(CMAKE_POLICY_DEFAULT_CMP0135 NEW)
+    endif ()
+
+    if (POLICY CMP0077)
+        cmake_policy(SET CMP0077 NEW)
+        set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+    endif ()
+
+    set(gtest_force_shared_crt ON)
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+    include(FetchContent)
+    FetchContent_Declare(
+            googletest
+            URL ${CMAKE_CURRENT_SOURCE_DIR}/googletest-1.12.1.zip
+            URL_HASH MD5=2648d4138129812611cf6b6b4b497a3b
+    )
+    FetchContent_MakeAvailable(googletest)
+endif ()