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https://issues.apache.org/jira/browse/ARROW-4720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16781373#comment-16781373
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Kouhei Sutou commented on ARROW-4720:
-------------------------------------
Ruby users use MinGW build.
R users will also use MinGW build.
> [CI] Mark MinGW build failures allowed
> --------------------------------------
>
> Key: ARROW-4720
> URL: https://issues.apache.org/jira/browse/ARROW-4720
> Project: Apache Arrow
> Issue Type: Wish
> Components: C++, Continuous Integration
> Reporter: Antoine Pitrou
> Priority: Major
>
> Currently we are requiring MinGW tests to pass on AppVeyor. Almost nobody
> will use MinGW builds if regular MSVC builds work fine. So it should be on
> the onus of the few people caring about MinGW to ensure that the build chain
> works on those platforms.
> Example here, apparently the uriparser library doesn't build on MinGW:
> https://ci.appveyor.com/project/pitrou/arrow/build/job/t64xwyj2axhl1jgr
> There is a tendency to inflate the number of different configurations in our
> CI matrices. Not only it makes builds longer and adds delays (see how long
> you have to wait before you get a CI result on AppVeyor), but it's of dubious
> utility. I'm not sure it serves the project's general interest.
> Rant off ;)
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