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From Chris Olivier <cjolivie...@gmail.com>
Subject Re: Stop redistributing source code of 3rdparty dependencies to avoid licensing issues
Date Fri, 17 Jan 2020 18:59:28 GMT
+1

On Fri, Jan 17, 2020 at 10:19 AM Lausen, Leonard <lausen@amazon.com.invalid>
wrote:

> Dear MXNet community,
>
> as per recent mail on general@incubator.apache.org [1] there are a number
> of
> licensing issues in MXNet 1.6rc1. Based on anecdotal evidence I believe
> there
> has been no release so far without any licensing issues, which is a
> blocker to
> MXNet graduating from it's incubating status. One contributing factor is
> that we
> bundle 3rdparty source code in our releases [2].
>
> One key factor is that 3rdparty projects don't always enforce licensing
> best
> practice in the way we do. For example, 3rdparty/ps-lite doesn't enforce
> license
> headers in the source files and there has been confusion about the license
> of
> recent contributions by ByteDance (See [1]).
>
> To avoid such licensing issues in MXNet releases a simple solution is to
> stop
> distributing the 3rdparty code in our source releases. Instead, we can
> adapt our
> buildsystem to download 3rdparty code as part of the build configuration
> process. CMake makes this very easy with the FetchContent module [3].
>
> For development purpose involving changes to the 3rdparty source or build
> systems that can't access the internet, there are easy means for
> specifying the
> location of local sources (instead of downloading), via the
> FETCHCONTENT_SOURCE_DIR_<someName> variable [4].
>
> Would there be any concerns about such approach? Obviously it can only be
> fully
> implemented as soon as the CMake build system is feature complete and the
> Makefile build can be dropped. (Note that the Makefile build is being
> deprecated
> and removed as part of MXNet 2 roadmap [5])
>
> Best regards
> Leonard
>
> [1]:
>
> https://lists.apache.org/thread.html/rb83ff64bdac464df2f0cf2fe8fb4c6b9d3b8fa62b645763dc606045f%40%3Cgeneral.incubator.apache.org%3E
> [2]: See the .tar.gz files at
> https://incubator.apache.org/clutch/mxnet.html
> [3]: https://cmake.org/cmake/help/latest/module/FetchContent.html
> [4]: https://cmake.org/pipermail/cmake/2019-June/069709.html
> [5]: https://github.com/apache/incubator-mxnet/issues/16167
>

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