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https://issues.apache.org/jira/browse/SPARK-5669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327133#comment-14327133
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Sean Owen commented on SPARK-5669:
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[~mengxr] That just applies to GCC, right? it still wouldn't change the LGPL
license for libgfortran. I also don't know if Spark qualifies given the
definition of "Eligible Compilation Process". My understanding is that without
this exception, anything compiled by GCC would be copyleft, and this prevents
that. I don't know if it generally allows redistribution of libgcc.
> Spark assembly includes incompatibly licensed libgfortran, libgcc code via
> JBLAS
> --------------------------------------------------------------------------------
>
> Key: SPARK-5669
> URL: https://issues.apache.org/jira/browse/SPARK-5669
> Project: Spark
> Issue Type: Bug
> Components: Build
> Reporter: Sean Owen
> Assignee: Sean Owen
> Priority: Blocker
> Fix For: 1.3.0
>
>
> Sorry for "Blocker", but it's a license issue. The Spark assembly includes
> the following, from JBLAS:
> {code}
> lib/
> lib/static/
> lib/static/Mac OS X/
> lib/static/Mac OS X/x86_64/
> lib/static/Mac OS X/x86_64/libjblas_arch_flavor.jnilib
> lib/static/Mac OS X/x86_64/sse3/
> lib/static/Mac OS X/x86_64/sse3/libjblas.jnilib
> lib/static/Windows/
> lib/static/Windows/x86/
> lib/static/Windows/x86/libgfortran-3.dll
> lib/static/Windows/x86/libgcc_s_dw2-1.dll
> lib/static/Windows/x86/jblas_arch_flavor.dll
> lib/static/Windows/x86/sse3/
> lib/static/Windows/x86/sse3/jblas.dll
> lib/static/Windows/amd64/
> lib/static/Windows/amd64/libgfortran-3.dll
> lib/static/Windows/amd64/jblas.dll
> lib/static/Windows/amd64/libgcc_s_sjlj-1.dll
> lib/static/Windows/amd64/jblas_arch_flavor.dll
> lib/static/Linux/
> lib/static/Linux/i386/
> lib/static/Linux/i386/sse3/
> lib/static/Linux/i386/sse3/libjblas.so
> lib/static/Linux/i386/libjblas_arch_flavor.so
> lib/static/Linux/amd64/
> lib/static/Linux/amd64/sse3/
> lib/static/Linux/amd64/sse3/libjblas.so
> lib/static/Linux/amd64/libjblas_arch_flavor.so
> {code}
> Unfortunately the libgfortran and libgcc libraries included for Windows are
> not licensed in a way that's compatible with Spark and the AL2 -- LGPL at
> least.
> It's easy to exclude them. I'm not clear what it does to running on Windows;
> I assume it can still work but the libs would have to be made available
> locally and put on the shared library path manually. I don't think there's a
> package manager as in Linux that would make it easily available. I'm not able
> to test on Windows.
> If it doesn't work, the follow-up question is whether that means JBLAS has to
> be removed on the double, or treated as a known issue for 1.3.0.
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