Re: How to handle CC0 in .NET 7 (dotnet7.0) ?

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Hi Richard,

Sorry to bother you, but any advice on this?

Omair Majid <omajid@xxxxxxxxxx> writes:

> I am trying to package .NET 7 in Fedora:
> https://bugzilla.redhat.com/show_bug.cgi?id=2142178
>
> (This is a new package, though it's "just" an updated version of the .NET
> 6 package that we already include in Fedora.)
>
> The reviewer has helped identify that the source code archive includes a
> few files that include notes about Creative Commons. I am looking on
> advice on how to handle it.
>
> I found basically these 7 non-content files that have a pointer to
> creativecommons.org:
>
> https://github.com/dotnet/runtime/tree/main/src/libraries/System.Private.CoreLib/src/System/Random.Xoshiro128StarStarImpl.cs
> https://github.com/dotnet/runtime/tree/main/src/libraries/System.Private.CoreLib/src/System/Random.Xoshiro256StarStarImpl.cs
>
> These two files have an MIT license header in addition to the comment
> that the code is based on an algorithm originally licensed under CC0.
> These files are a critical part of .NET that we absolutely need to build
> and include in Fedora.
>
> Can I ignore the comment about CC0 because of the MIT license header in
> the file? Is it safe to treat these files as under MIT only? If not,
> what are my options to handle this piece of code?

Can I simply say this file is under both MIT and CC0 and the implied
patent clauses in MIT are good enough to serve as an exception to the
general no-CC0 usage policy in Fedora?

> https://github.com/dotnet/fsharp/tree/main/tests/benchmarks/CompiledCodeBenchmarks/TaskPerf/TaskPerf/TaskBuilder.fs
> https://github.com/dotnet/fsharp/tree/main/tests/FSharp.Core.UnitTests/FSharp.Core/Microsoft.FSharp.Control/Tasks.fs
> https://github.com/dotnet/fsharp/tree/main/tests/FSharp.Core.UnitTests/FSharp.Core/Microsoft.FSharp.Control/TasksDynamic.fs
>
> These 3 don't have an MIT or Apache header. Only a Creative Commons
> header.
>
> Given that these files are benchmarks and unit tests that we don't run
> during the build, I suppose I can just delete these files? Do I need to
> delete them from the source archive or can I delete them in %prep?
>
> Are other/easier options on the table here?
>
> https://github.com/dotnet/runtime/tree/main/src/mono/mono/utils/dlmalloc.c
> https://github.com/dotnet/runtime/tree/main/src/mono/mono/utils/dlmalloc.h
>
> These are under CC-PDDC and hence acceptable without any issues, right?
>
> It looks like newer versions of dlmalloc use CC0 and so are unacceptable
> to Fedora? Is there any guidance I can share with .NET upstream in terms
> of the impact of eventually switching to the newer version of dlmalloc?

Thanks,
Omair

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