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1#==============================================================================2# Build Google Benchmark3#==============================================================================4 5include(ExternalProject)6set(BENCHMARK_COMPILE_FLAGS7 -Wno-unused-command-line-argument8 -nostdinc++9 -isystem "${LIBCXX_GENERATED_INCLUDE_DIR}"10 -L${LIBCXX_LIBRARY_DIR}11 -Wl,-rpath,${LIBCXX_LIBRARY_DIR}12 ${SANITIZER_FLAGS}13 )14if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)15 list(APPEND BENCHMARK_COMPILE_FLAGS16 -isystem "${LIBCXX_GENERATED_INCLUDE_TARGET_DIR}")17endif()18if (DEFINED LIBCXX_CXX_ABI_LIBRARY_PATH)19 list(APPEND BENCHMARK_COMPILE_FLAGS20 -L${LIBCXX_CXX_ABI_LIBRARY_PATH}21 -Wl,-rpath,${LIBCXX_CXX_ABI_LIBRARY_PATH})22endif()23split_list(BENCHMARK_COMPILE_FLAGS)24 25set(BENCHMARK_CXX_LIBRARIES)26list(APPEND BENCHMARK_CXX_LIBRARIES c++)27if (NOT LIBCXX_ENABLE_SHARED)28 list(APPEND BENCHMARK_CXX_LIBRARIES c++abi)29endif()30 31ExternalProject_Add(google-benchmark32 EXCLUDE_FROM_ALL ON33 DEPENDS cxx cxx-headers34 PREFIX google-benchmark35 SOURCE_DIR ${LLVM_THIRD_PARTY_DIR}/benchmark36 INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/google-benchmark37 CMAKE_CACHE_ARGS38 -DCMAKE_C_COMPILER:FILEPATH=${CMAKE_C_COMPILER}39 -DCMAKE_CXX_COMPILER:FILEPATH=${CMAKE_CXX_COMPILER}40 -DCMAKE_MAKE_PROGRAM:FILEPATH=${CMAKE_MAKE_PROGRAM}41 -DCMAKE_BUILD_TYPE:STRING=RELEASE42 -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>43 -DCMAKE_CXX_FLAGS:STRING=${BENCHMARK_COMPILE_FLAGS}44 -DBENCHMARK_USE_LIBCXX:BOOL=ON45 -DBENCHMARK_ENABLE_TESTING:BOOL=OFF46 -DBENCHMARK_CXX_LIBRARIES:STRING=${BENCHMARK_CXX_LIBRARIES})47 48add_dependencies(cxx-test-depends google-benchmark)49