kou opened a new issue, #47071: URL: https://github.com/apache/arrow/issues/47071
### Describe the bug, including details regarding any error messages, version, and platform. Apache Rat doesn't like hard links. ```console $ LANG=C tar tzvf /var/tmp/download/apache-arrow-21.0.0.tar.gz | grep python/cmake drwxr-xr-x 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/ hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/BuildUtils.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/BuildUtils.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/DefineOptions.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/DefineOptions.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindAWSSDKAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindAWSSDKAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindAzure.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindAzure.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindBrotliAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindBrotliAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindClangTools.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindClangTools.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindGTestAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindGTestAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindInferTools.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindInferTools.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindLLVMAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindLLVMAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindOpenSSLAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindOpenSSLAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindProtobufAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindProtobufAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindPython3Alt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindPython3Alt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindRapidJSONAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindRapidJSONAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindSQLite3Alt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindSQLite3Alt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindSnappyAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindSnappyAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindThriftAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindThriftAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindabslAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindabslAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Findc-aresAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Findc-aresAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindgRPCAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindgRPCAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindgflagsAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindgflagsAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindglogAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindglogAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindjemallocAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindjemallocAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Findlibrados.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Findlibrados.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Findlz4Alt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Findlz4Alt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindorcAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindorcAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Findre2Alt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Findre2Alt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Findutf8proc.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Findutf8proc.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/FindzstdAlt.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/FindzstdAlt.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/GandivaAddBitcode.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/GandivaAddBitcode.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/SetupCxxFlags.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/SetupCxxFlags.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/ThirdpartyToolchain.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/ThirdpartyToolchain.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/UseCython.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/UseCython.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/Usevcpkg.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/Usevcpkg.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/aws-c-common-1208.patch link to apache-arrow-21.0.0/cpp/cmake_modules/aws-c-common-1208.patch hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/san-config.cmake link to apache-arrow-21.0.0/cpp/cmake_modules/san-config.cmake hrw-r--r-- 0/0 0 2025-07-11 10:52 apache-arrow-21.0.0/python/cmake_modules/snappy.diff link to apache-arrow-21.0.0/cpp/cmake_modules/snappy.diff ``` ### Component(s) Release -- This is an automated message from the Apache Git Service. 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