faebcc1087
This commit updates the `ToolBuild` step to stream Cargo's JSON messages, parse them, and record all libraries built. If we build anything twice (aka Cargo) it'll most likely happen due to dependencies being recompiled which is caught by this check.
59 lines
2.2 KiB
TOML
59 lines
2.2 KiB
TOML
[package]
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authors = ["The Rust Project Developers"]
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name = "rustc"
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version = "0.0.0"
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[lib]
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name = "rustc"
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path = "lib.rs"
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crate-type = ["dylib"]
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[dependencies]
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arena = { path = "../libarena" }
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bitflags = "1.0"
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fmt_macros = { path = "../libfmt_macros" }
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graphviz = { path = "../libgraphviz" }
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jobserver = "0.1"
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lazy_static = "1.0.0"
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log = { version = "0.4", features = ["release_max_level_info", "std"] }
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proc_macro = { path = "../libproc_macro" }
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rustc_apfloat = { path = "../librustc_apfloat" }
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rustc_back = { path = "../librustc_back" }
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rustc_const_math = { path = "../librustc_const_math" }
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rustc_data_structures = { path = "../librustc_data_structures" }
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rustc_errors = { path = "../librustc_errors" }
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serialize = { path = "../libserialize" }
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syntax = { path = "../libsyntax" }
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syntax_pos = { path = "../libsyntax_pos" }
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backtrace = "0.3.3"
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byteorder = { version = "1.1", features = ["i128"]}
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# Note that these dependencies are a lie, they're just here to get linkage to
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# work.
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#
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# We're creating a bunch of dylibs for the compiler but we're also compiling a
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# bunch of crates.io crates. Everything in the compiler is compiled as an
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# rlib/dylib pair but all crates.io crates tend to just be rlibs. This means
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# we've got a problem for dependency graphs that look like:
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#
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# foo - rustc_trans
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# / \
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# rustc ---- rustc_driver
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# \ /
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# foo - rustc_metadata
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#
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# Here the crate `foo` is linked into the `rustc_trans` and the
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# `rustc_metadata` dylibs, meaning we've got duplicate copies! When we then
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# go to link `rustc_driver` the compiler notices this and gives us a compiler
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# error.
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#
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# To work around this problem we just add these crates.io dependencies to the
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# `rustc` crate which is a shared dependency above. That way the crate `foo`
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# shows up in the dylib for the `rustc` crate, deduplicating it and allowing
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# crates like `rustc_trans` to use `foo` *through* the `rustc` crate.
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#
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# tl;dr; this is not needed to get `rustc` to compile, but if you remove it then
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# later crate stop compiling. If you can remove this and everything
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# compiles, then please feel free to do so!
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flate2 = "1.0"
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tempdir = "0.3"
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