ffi: replace native-decide C shim with Rust dynlib - #534
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samuelburnham
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Replace the `ix-rs-dyn` crate with a Lake target that assembles the elaboration-time dynlib from artifacts that already exist, so no FFI ABI is mirrored by hand: - Boxed entry points come from Lean's generated objects for the declaring modules (`Blake3`, `Blake3.Rust`, `Ix.Unsigned`), fetched via each module's `oExport` facet — the same code linked into normal executables. - Raw symbols come from the `blake3_rs` and `ix-ffi` `cdylib` outputs, recorded as load-time dependencies by absolute path (no `LD_LIBRARY_PATH`). The toolchain's `libgmp.a` is folded in to satisfy `ix-ffi`'s Nat bridge. This drops the duplicated BLAKE3 backend and its independent `=1.8.4` pin (restoring blake3 1.8.5 in Cargo.lock), and removes the `ix-rs-dyn` crate. `ix-ffi` and the pinned Blake3 dependency now build a `cdylib` alongside their staticlib.
arthurpaulino
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arthurpaulino
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August 4, 2026 18:55
johnchandlerburnham
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Aug 4, 2026
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