4088b27b93
...and properly find and link against `libatomic` using find_library. This fixes the qtdeclarative build on the RISC-V platform. Initial-patch-by: Sprite <SpriteOvO@gmail.com> Pick-to: 6.2 Pick-to: 6.3 Task-number: QTBUG-99234 Change-Id: I2b5e4812886ce45cb02bed3106ce8c519b294cbe Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
52 lines
1.5 KiB
CMake
52 lines
1.5 KiB
CMake
# We can't create the same interface imported target multiple times, CMake will complain if we do
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# that. This can happen if the find_package call is done in multiple different subdirectories.
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if(TARGET WrapAtomic::WrapAtomic)
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set(WrapAtomic_FOUND ON)
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return()
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endif()
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include(CheckCXXSourceCompiles)
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set (atomic_test_sources "#include <atomic>
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#include <cstdint>
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int main(int, char **)
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{
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volatile std::atomic<char> size_1;
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volatile std::atomic<short> size_2;
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volatile std::atomic<int> size_4;
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volatile std::atomic<int64_t> size_8;
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++size_1;
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++size_2;
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++size_4;
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++size_8;
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(void)size_1.load(std::memory_order_relaxed);
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(void)size_2.load(std::memory_order_relaxed);
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(void)size_4.load(std::memory_order_relaxed);
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(void)size_8.load(std::memory_order_relaxed);
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return 0;
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}")
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check_cxx_source_compiles("${atomic_test_sources}" HAVE_STDATOMIC)
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if(NOT HAVE_STDATOMIC)
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set(_req_libraries "${CMAKE_REQUIRED_LIBRARIES}")
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find_library(atomic_LIB atomic REQUIRED)
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set(CMAKE_REQUIRED_LIBRARIES ${atomic_LIB})
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check_cxx_source_compiles("${atomic_test_sources}" HAVE_STDATOMIC_WITH_LIB)
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set(CMAKE_REQUIRED_LIBRARIES "${_req_libraries}")
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endif()
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add_library(WrapAtomic::WrapAtomic INTERFACE IMPORTED)
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if(HAVE_STDATOMIC_WITH_LIB)
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# atomic_LIB is already found above.
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target_link_libraries(WrapAtomic::WrapAtomic INTERFACE ${atomic_LIB})
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endif()
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set(WrapAtomic_FOUND 1)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(WrapAtomic DEFAULT_MSG WrapAtomic_FOUND)
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