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cmake/modules/FindStdFilesystem.cmake
56 строк
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Kefu Chai
cmake: stop detecting <experimental/filesystem>
09 июн 2021, 18:25
09 июн 2021, 18:25
d2b0382
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О чём код?
set(_std_filesystem_test_src ${CMAKE_CURRENT_LIST_DIR}/FindStdFilesystem_test.cc) macro(try_std_filesystem_library _library _result _already_included) set(_std_filesystem_try_compile_arg CXX_STANDARD 17) if(NOT _library STREQUAL "") list(APPEND _std_filesystem_try_compile_arg LINK_LIBRARIES ${_library}) endif() try_compile(_std_filesystem_compiles ${CMAKE_CURRENT_BINARY_DIR} SOURCES ${_std_filesystem_test_src} ${_std_filesystem_try_compile_arg}) unset(_std_filesystem_try_compile_arg) if(_std_filesystem_compiles) if(NOT ${_library} STREQUAL "") set(${_result} ${_library}) else() set(${_already_included} "included by standard library") endif() endif() unset(_std_filesystem_compiles) endmacro() set(_std_filesystem_required_var "StdFilesystem_LIBRARY") set(_std_filesystem_already_included FALSE) foreach(library "" "stdc++fs" "c++fs") try_std_filesystem_library("${library}" StdFilesystem_LIBRARY _std_filesystem_already_included) if(_std_filesystem_already_included) set(_std_filesystem_required_var "_std_filesystem_already_included") break() elseif(StdFilesystem_LIBRARY) break() endif() endforeach() unset(_std_filesystem_test_src) include(FindPackageHandleStandardArgs) find_package_handle_standard_args(StdFilesystem FOUND_VAR StdFilesystem_FOUND REQUIRED_VARS ${_std_filesystem_required_var}) mark_as_advanced(StdFilesystem_LIBRARY) if(StdFilesystem_FOUND AND NOT (TARGET StdFilesystem::filesystem)) add_library(StdFilesystem::filesystem INTERFACE IMPORTED) if(StdFilesystem_LIBRARY) set_target_properties(StdFilesystem::filesystem PROPERTIES INTERFACE_LINK_LIBRARIES ${StdFilesystem_LIBRARY}) endif() endif()