Re: rust: cargo build-system: how to handle libraries

[ng0]

David Craven <address@hidden> writes:

>> Of course I meant Cargo.lock, not Cargo.toml ... so I know what I
>> have to search for, and this makes it a bit easier than the
>> previous search.
>
> See cargo workspaces:
> https://github.com/rust-lang/libc/blob/master/Cargo.toml
> https://github.com/rust-lang/rfcs/blob/master/text/1525-cargo-workspace.md

Aha! Thanks :)

> It's a fairly new thing, you'll have to track down the relevant
> commits in cargo and check if the cargo version we are using is new
> enough and understand it's semantics and how it applies to the cargo
> build system.

Is the cargo version attached to the rustc version? In other
words, could I try and package cargo 0.15 (released 6 days ago)
and it will not care about the rustc version?

> My recommendation to fix this issue is to not run the tests if there
> isn't a Cargo.lock file, but this is likely not going to solve the
> underlying cause in this case. You can also package version 0.2.16
> which does not use workspaces.

Are there mechanisms in place in either (our) cargo build-system
or cargo in general to disable tests, or do I have to write this
(if I would run into problems with packaging 0.15 cargo)?

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