Re: Help packaging a "C" library written in Rust

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On Wed, Sep 07, 2022 at 10:05:55AM +0100, Richard W.M. Jones wrote:
> 
> https://gitlab.com/libblkio/libblkio
> 
> This is a library that offers a C API.  It happens to be implemented
> in Rust, but it's not a "Crate" or anything like that.
> 
> I wrote a spec file for it assuming it's a C library and it works fine
> when building locally:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=2124697
> 
> However it turns out that it downloads stuff during the build and
> therefore won't build in Koji.  Apart from reading the Rust packaging
> guidelines which don't seem applicable here (as this is not a Rust
> Crate), that's as far as I've got on this one.
> 
> Has anyone packaged anything like this for Fedora?

It was pointed out on the bug that librsvg2 is in a similar situation.
The answer there was to bundle ("vendor") all the Rust dependencies
into the tarball.  The command "cargo vendor" does this.

For librsvg2 that's 278MB of dependencies (10 times larger than the
sources of librsvg2 itself) in 265 separate Rust libraries.  For
libblkio it's 123MB of dependencies in a mere 21 libraries.

Also there's no Provides: bundled(...) in the librsvg2 package.

Rich.

-- 
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