[jira] [Commented] (LEGAL-316) Use of struct definitions and #defines from LGPL source

["Roman Shaposhnik (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LEGAL-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16060475#comment-16060475 ] 

Roman Shaposhnik commented on LEGAL-316:
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FWIW: I agree with your interpretation of LGPL as applied to structs. I think it should be OK to distribute it within the ALv2 licensed body of work. That said, you would still have to call it out in the LICENSE file for the provenance's sake.

> Use of struct definitions and #defines from LGPL source
> -------------------------------------------------------
>
>                 Key: LEGAL-316
>                 URL: https://issues.apache.org/jira/browse/LEGAL-316
>             Project: Legal Discuss
>          Issue Type: Question
>            Reporter: Todd Lipcon
>
> In Kudu, we are looking to make use of an XFS-specific ioctl() which requires a specific struct xfs_flock64 to be passed as its argument. The struct is not available in commonly-distributed headers but is part of the public API of XFS, and defined in the Linux source tree in an [LGPL-licensed header|https://github.com/torvalds/linux/blob/fe7a719b30dfdb4d55680461954b99b257ebe671/fs/xfs/libxfs/xfs_fs.h#L126]. We also need the definition of XFS_IOC_UNRESVSP64 defined [here|https://github.com/torvalds/linux/blob/fe7a719b30dfdb4d55680461954b99b257ebe671/fs/xfs/libxfs/xfs_fs.h#L509].
> Since the file isn't commonly installed by default, we would like to copy-paste the struct definition and define into our own code. According to Richard Stallman on http://lkml.iu.edu/hypermail/linux/kernel/0301.1/0362.html:
> {quote}
>  Our view is that just using structure 
> definitions, typedefs, enumeration constants, macros with simple 
> bodies, etc., is NOT enough to make a derivative work
> {quote}
> Additionally, Google has been extracting struct definitions from Linux and redistributing them as part of their BSD-licensed bionic library for the past 6 years on Android. So, we believe there is precedent and this should be fine for us. Just looking for confirmation from ASF Legal.



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