could not find `linkme` in the list of imported crates

[PonasKovas]

Hello, thanks for another great crate!

I am trying to wrap this functionality in my own crate, but I am getting this error when trying to use it:

error[E0433]: failed to resolve: could not find `linkme` in the list of imported crates

This is because here I use my own "wrapper" crate and don't import linkme directly. I don't want to burden my users with importing internal crates like this.

I assume this happens because your macro needs to access linkme::DistributedSlice type to construct it.

Would you mind adding an option to give the path to the linkme crate in the macro invocation to solve this issue?

I think something like this would work well:

#[distributed_slice(@my::reexported::path::to::linkme)]
pub static BENCHMARKS: [fn(&mut Bencher)];
#[distributed_slice(@my::reexported::path::to::linkme, BENCHMARKS)]
fn bench_deserialize(b: &mut Bencher) {}

Basically adding an optional argument that starts with @ in the distributed_slice macro to give a path to linkme.

If this is fine to you, I will make a PR.

Wishing you a blessed Christmas and a joyful New Year, filled with the peace and love of Christ.

Edit: if anyone stumbles upon this with the same problem in the future, I actually found that this is already implemented. Lol. Don't tell dtolnay though, as he appears to not be a big fan of the idea.

[dtolnay]

I would prefer not to support such a workaround in this crate. But in case you are interested in working on this instead, rust-lang/rust#54363 (comment) describes what I think is a good design for proc macro re-exporting.