Hi, Ah, sorry. I should have written it in the original e-mail.
If we can require CMake 3.16+: * We can always use the precompiled headers feature that reduces build time: https://github.com/apache/arrow/pull/35921/files#diff-1bba462ab050e89360fd88110a689e85ee037749cea091a1848ab574381d3795L236 * We can remove our bundled FindPythonLibsNew.cmake and FindNumPy.cmake: https://github.com/apache/arrow/pull/35921/files#diff-96c2eed475b13f84b0e0b4ce871fcf225d3d75d8c1ebd9d2b2d7183fa2a603f5L44 Users don't need to specify both of -DPYTHON_EXECUTABLE and -DPython3_EXECUTABLE for old/new CMake: https://github.com/apache/arrow/pull/35921/files#diff-91a09bc7b04c0122375fb44ec755065daccba993f95f96a26df129c4df9bb438L377 * We can remove a Boost::headers related shim code: https://github.com/apache/arrow/pull/35921/files#diff-5cdc95f4e1b618f2f3ef10d370ce05a1ac05d9d401aecff3ccbb3d76bd366b6aL1203 * Jacob wants to use FetchContent related features: https://github.com/apache/arrow/pull/35921#issuecomment-1585428356 Thanks, -- kou In <ce9e91cb-52e6-32e5-9ca3-baf904799...@python.org> "Re: [DISCUSS][C++] Can we require CMake 3.16+ since 13.0.0?" on Thu, 15 Jun 2023 23:36:10 +0200, Antoine Pitrou <anto...@python.org> wrote: > > Hi, > > I'd ask the question differently: what do we gain from requiring 3.16 > rather than 3.13? > > > Le 15/06/2023 à 23:19, Sutou Kouhei a écrit : >> Hi, >> We require CMake 3.5+ now because Ubuntu 18.04 ships 3.5. >> We dropped support for Ubuntu 18.04 because it reached EOL. >> Can we require CMake 3.16+ in Apache Arrow C++ 13.0.0? >> Here are CMake versions of our supported platforms: >> * Ubuntu 20.04: CMake 3.16 >> * CentOS 7: CMake 3.17 >> * Debian GNU/Linux bullseye: 3.18 >> * Amazon Linux 2: CMake 3.13!!! >> See the Amazon Linux 2 item. It ships CMake 3.13 not CMake >> 3.16+. Can we drop support for Amazon Linux 2 in Apache >> Arrow C++ 13.0.0? >> FYI1: Amazon Linux released a new version (Amazon Linux >> 2023) on 2023-03-15: >> Amazon Linux 2023, a Cloud-Optimized Linux Distribution with >> Long-Term Support >> https://aws.amazon.com/blogs/aws/amazon-linux-2023-a-cloud-optimized-linux-distribution-with-long-term-support/ >> FYI2: Amazon Linux 2 was scheduled to reach EOL on >> 2023-06-30 but has been extended to 2025-06-30: >> https://aws.amazon.com/amazon-linux-2/faqs/ >> >>> Amazon Linux 2 end of support date (End of Life, or EOL) >>> has been extended by two years from 2023-06-30 to >>> 2025-06-30 to provide customers with ample time to migrate >>> to the next version. >> FYI3: We'll support Amazon Linux 2023 in Apache Arrow C++ >> 13.0.0: >> https://github.com/apache/arrow/pull/36081 >> Related issue: >> [C++] Require CMake 3.16 or later >> https://github.com/apache/arrow/issues/34921 >> Thanks,
