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rAKA/third-party/cmake/gbenchmark.cmake
ccded5305f53bugfixes/65-Making-the…

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gbenchmark.cmake
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set(_working_dir ${PROJECT_BINARY_DIR}/third-party/src/gbenchmark-download)
configure_file(${PROJECT_SOURCE_DIR}/third-party/gbenchmark.cmake.in ${_working_dir}/CMakeLists.txt)
set(GBENCHMARK_ROOT ${PROJECT_BINARY_DIR}/third-party)
find_package(benchmark QUIET)
if(NOT BENCHMARK_FOUND)
if(NOT EXISTS ${PROJECT_SOURCE_DIR}/third-party/google-benchmark)
message(STATUS "Downloading google-benchmark")
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
RESULT_VARIABLE result WORKING_DIRECTORY ${_working_dir}
OUTPUT_FILE ${_working_dir}/configure-out.log
ERROR_FILE ${_working_dir}/configure-error.log)
if(result)
message(SEND_ERROR "CMake step for google-benchmark failed: ${result}")
return()
endif()
execute_process(COMMAND ${CMAKE_COMMAND} --build .
RESULT_VARIABLE result WORKING_DIRECTORY ${_working_dir}
OUTPUT_FILE ${_working_dir}/build-out.log
ERROR_FILE ${_working_dir}/build-error.log)
if(result)
message(SEND_ERROR "Downloading google-benchmark failed: ${result}")
return()
endif()
endif()
set(BENCHMARK_ENABLE_GTEST_TESTS OFF CACHE INTERNAL "" FORCE)
set(BENCHMARK_ENABLE_TESTING OFF CACHE INTERNAL "" FORCE)
add_subdirectory(third-party/google-benchmark)
set_property(TARGET benchmark PROPERTY CXX_STANDARD 14)
add_library(benchmark::benchmark ALIAS benchmark)
set(gbenchmark_FOUND TRUE CACHE INTERNAL "" FORCE)
set(GBENCHMARK_INCLUDE_DIRS third-party/google-benchmark/googletest/include CACHE INTERNAL "" FORCE)
set(GBENCHMARK_LIBRARIES benchmark::benchmark CACHE INTERNAL "" FORCE)
mask_package_options(BENCHMARK)
mark_as_advanced(gbenchmark_DIR LIBRT LLVM_FILECHECK_EXE)
endif()
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