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https://issues.apache.org/jira/browse/ARROW-13493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Neal Richardson resolved ARROW-13493.
-------------------------------------
Resolution: Fixed
Issue resolved by pull request 10833
[https://github.com/apache/arrow/pull/10833]
> [C++] Anonymous structs in an anonymous union are a GNU extension
> -----------------------------------------------------------------
>
> Key: ARROW-13493
> URL: https://issues.apache.org/jira/browse/ARROW-13493
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, R
> Reporter: Neal Richardson
> Assignee: Niranda Perera
> Priority: Major
> Labels: pull-request-available
> Fix For: 5.0.1, 6.0.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> CRAN reports on 5.0.0:
> {code}
> checking whether package ‘arrow’ can be installed ... [43m/20m] WARNING
> Found the following significant warnings:
>
> /data/gannet/ripley/R/packages/tests-clang/arrow/libarrow/arrow-5.0.0/include/arrow/util/bitmap_reader.h:242:5:
> warning: anonymous structs are a GNU extension [-Wgnu-anonymous-struct]
>
> /data/gannet/ripley/R/packages/tests-clang/arrow/libarrow/arrow-5.0.0/include/arrow/util/bitmap_reader.h:242:5:
> warning: anonymous types declared in an anonymous union are an extension
> [-Wnested-anon-types]
>
> /data/gannet/ripley/R/packages/tests-clang/arrow/libarrow/arrow-5.0.0/include/arrow/util/bitmap_writer.h:263:5:
> warning: anonymous structs are a GNU extension [-Wgnu-anonymous-struct]
>
> /data/gannet/ripley/R/packages/tests-clang/arrow/libarrow/arrow-5.0.0/include/arrow/util/bitmap_writer.h:263:5:
> warning: anonymous types declared in an anonymous union are an extension
> [-Wnested-anon-types]
> See
> https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-fedora-clang/arrow-00install.html
> for details.
> {code}
> https://github.com/apache/arrow/blob/apache-arrow-5.0.0/cpp/src/arrow/util/bitmap_reader.h#L242-L247
> https://github.com/apache/arrow/blob/apache-arrow-5.0.0/cpp/src/arrow/util/bitmap_writer.h#L263-L268
> This change was introduced in ARROW-13010 (cc [~niranda])
> Aside from the fix, I'm not sure which of the build settings on
> https://www.stats.ox.ac.uk/pub/bdr/Rconfig/r-devel-linux-x86_64-fedora-clang
> is missing from our `fedora-clang-devel` build we test on nightly, but we
> should figure it out (or work with the r-hub maintainers on making a better
> base image).
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