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https://issues.apache.org/jira/browse/HADOOP-8887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14364466#comment-14364466
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Colin Patrick McCabe commented on HADOOP-8887:
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Please, -1 on automatic downloading of cmake. The build takes long enough
as-is, and cmake takes forever to download and install. Plus we would have to
somehow find the correct version for each different Linux distribution / BSD /
Mac OS release, which puts this firmly in Not Happening territory. And
building cmake from source takes a really long time, maybe almost as much as
Hadoop itself! I don't remember exactly how long it took last time I did it.
I think we could move off of supporting cmake 2.6 in branch-2 today if we
wanted to. We only supported it earlier because people wanted to run on Red
Hat 5, but that is no longer a concern. We could bump the minimum version up
to 2.8 and get rid of a bunch of quirks code.
> Use a Maven plugin to build the native code using CMake
> -------------------------------------------------------
>
> Key: HADOOP-8887
> URL: https://issues.apache.org/jira/browse/HADOOP-8887
> Project: Hadoop Common
> Issue Type: Improvement
> Components: build
> Affects Versions: 2.0.3-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HADOOP-8887.001.patch, HADOOP-8887.002.patch,
> HADOOP-8887.003.patch, HADOOP-8887.004.patch, HADOOP-8887.005.patch,
> HADOOP-8887.006.patch, HADOOP-8887.008.patch, HADOOP-8887.011.patch
>
>
> Currently, we build the native code using ant-build invocations. Although
> this works, it has some limitations:
> * compiler warning messages are hidden, which can cause people to check in
> code with warnings unintentionally
> * there is no framework for running native unit tests; instead, we use ad-hoc
> constructs involving shell scripts
> * the antrun code is very platform specific
> * there is no way to run a specific native unit test
> * it's more or less impossible for scripts like test-patch.sh to separate a
> native test failing from the build itself failing (no files are created) or
> to enumerate which native tests failed.
> Using a native Maven plugin would overcome these limitations.
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