[Pkg-rust-maintainers] Upstream has changed the bootstrap process

[Ximin Luo]

OK, looks like it's working:

https://anonscm.debian.org/cgit/pkg-rust/rust.git/log/

I've tested this with DEB_BUILD_PROFILES=dlstage0 and also without this; both builds work and all tests pass. :D Please review and upload if good!

In particular, @Angus: I updated add-soname.patch - upstream now has a CrateType enum to represent the type of library, instead of a "dylib" boolean. The values this enum can take are:

src/librustc/session/config.rs:
pub enum CrateType {
    CrateTypeExecutable,
    CrateTypeDylib,
    CrateTypeRlib,
    CrateTypeStaticlib,
    CrateTypeCdylib,
}

I replaced the "if dylib" check with "crate_type == config::CrateTypeDylib", but I'm not sure if this is entirely correct. If you run "git log -p src/librustc_trans/back/link.rs" on the upstream repo, you will see that they sometimes did what I did, but sometimes replaced it to check "crate_type != config::CrateTypeExecutable" instead. Please fix this, if appropriate.

X

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