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if(WIN32 AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
message(FATAL_ERROR "BLAKE3_USE_TBB requires building with Clang or MSVC on Windows")
set(BLAKE3_USE_TBB OFF)
endif()
find_package(TBB 2021.11.0 QUIET)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.11)
include(FetchContent)
if(NOT TBB_FOUND AND BLAKE3_FETCH_TBB)
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_EXTENSIONS ON)
option(TBB_TEST OFF "")
option(TBBMALLOC_BUILD OFF "")
mark_as_advanced(TBB_TEST)
mark_as_advanced(TBBMALLOC_BUILD)
FetchContent_Declare(
TBB
GIT_REPOSITORY https://github.com/uxlfoundation/oneTBB
GIT_TAG 0c0ff192a2304e114bc9e6557582dfba101360ff # v2022.0.0
GIT_SHALLOW TRUE
)
FetchContent_MakeAvailable(TBB)
endif()
endif()
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