| # Integrates googletest at configure time. Based on the instructions at | |
| # https://github.com/google/googletest/tree/master/googletest#incorporating-into-an-existing-cmake-project | |
| # Set up the external googletest project, downloading the latest from Github | |
| # master if requested. | |
| configure_file( | |
| ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in | |
| ${CMAKE_BINARY_DIR}/googletest-external/CMakeLists.txt | |
| ) | |
| set(ABSL_SAVE_CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) | |
| set(ABSL_SAVE_CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}) | |
| if (BUILD_SHARED_LIBS) | |
| set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin) | |
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DGTEST_CREATE_SHARED_LIBRARY=1") | |
| endif() | |
| # Configure and build the googletest source. | |
| execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" . | |
| RESULT_VARIABLE result | |
| WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-external ) | |
| if(result) | |
| message(FATAL_ERROR "CMake step for googletest failed: ${result}") | |
| endif() | |
| execute_process(COMMAND ${CMAKE_COMMAND} --build . | |
| RESULT_VARIABLE result | |
| WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-external) | |
| if(result) | |
| message(FATAL_ERROR "Build step for googletest failed: ${result}") | |
| endif() | |
| set(CMAKE_CXX_FLAGS ${ABSL_SAVE_CMAKE_CXX_FLAGS}) | |
| set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${ABSL_SAVE_CMAKE_RUNTIME_OUTPUT_DIRECTORY}) | |
| # Prevent overriding the parent project's compiler/linker settings on Windows | |
| set(gtest_force_shared_crt ON CACHE BOOL "" FORCE) | |
| # Add googletest directly to our build. This defines the gtest and gtest_main | |
| # targets. | |
| add_subdirectory(${absl_gtest_src_dir} ${absl_gtest_build_dir} EXCLUDE_FROM_ALL) | |