Fix standalone build
Add extern declarations and optional dependencies to fix build done directly via `cargo build`.
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4 changed files with 17 additions and 2 deletions
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@ -14,6 +14,16 @@
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#![feature(local_key_cell_methods)]
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#![feature(ptr_metadata)]
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// Declare extern rustc_* crates to enable building this crate separately from the compiler.
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#[cfg(not(feature = "default"))]
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extern crate rustc_hir;
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#[cfg(not(feature = "default"))]
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extern crate rustc_middle;
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#[cfg(not(feature = "default"))]
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extern crate rustc_span;
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#[cfg(not(feature = "default"))]
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extern crate rustc_target;
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pub mod rustc_internal;
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pub mod stable_mir;
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