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Update CMakeLists.txt to fix MacOS build (#14160)
Co-authored-by: sfan5 <sfan5@live.de>
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@ -316,9 +316,14 @@ endif()
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# On clang and gcc, some functionalities of std::atomic require -latomic.
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# See <https://en.cppreference.com/w/cpp/atomic/atomic#Notes>.
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if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang"
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OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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set(PLATFORM_LIBS ${PLATFORM_LIBS} atomic)
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# Note that find_library does not reliably find it so we have to resort to this.
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# Also, passing -latomic is not always the same as adding atomic to the library list.
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include(CheckCSourceCompiles)
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set(CMAKE_REQUIRED_LIBRARIES "-latomic")
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check_c_source_compiles("int main(){}" HAVE_LINK_ATOMIC)
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set(CMAKE_REQUIRED_LIBRARIES "")
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if(HAVE_LINK_ATOMIC)
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set(PLATFORM_LIBS ${PLATFORM_LIBS} "-latomic")
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endif()
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check_include_files(endian.h HAVE_ENDIAN_H)
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