fix: link libc++ instead of libstdc++ for Rust FFI on Linux#21203
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notnotraju merged 1 commit intomerge-train/barretenbergfrom Mar 6, 2026
Merged
fix: link libc++ instead of libstdc++ for Rust FFI on Linux#21203notnotraju merged 1 commit intomerge-train/barretenbergfrom
notnotraju merged 1 commit intomerge-train/barretenbergfrom
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barretenberg is built with Clang/libc++ on all platforms, so the Rust build script must link libc++ everywhere. Linking libstdc++ on Linux causes undefined references to std::__1:: symbols from libc++. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
johnathan79717
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Actually we don't need to backfill as clang20 does not use zig in v4 https://github.com/AztecProtocol/aztec-packages/blob/v4.0.4/barretenberg/cpp/CMakePresets.json |
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BEGIN_COMMIT_OVERRIDE fix: add -g0 to zig presets to eliminate 11GB debug info bloat (#21071) fix: resolve flaky p2p_client test race condition on ARM64 (#21088) chore: remove domain iteration macros and address backing memory race (#20988) fix: [ECCVM] added domain separation for the multiset equality check. (#20352) feat: hybrid CRS hash verification — 8MB chunks, parallel, span-based (#21113) chore: unify splitting scalars interface (#20805) chore: add a unique id to each origin tag (#20924) chore: Native curve audit (#20936) chore: Update bootstrap in test vk haven't changed script (#21153) fix: use reduced form in WASM FromMontgomeryForm test (#21164) chore: erase ephemeral secrets from memory in schnorr and aes (#21106) chore: suppress clangd target triple version diagnostic (#21180) feat: Optimise new claim calculation (#21179) docs: add Quick Start build instructions to barretenberg README (#20951) feat: batched chonk verification (#21083) fix: link libc++ instead of libstdc++ for Rust FFI on Linux (#21203) fix: [ECCVM] in the transcript table, no-ops force the next accumulator to be 0. (#20849) fix: resolve merge-train conflict with next (zig wrapper scripts + -g0) (#21201) fix: [ECCVM] rare edge case completeness issue when `z1 == 0` but `z2 != 0` (#20858) fix: use actual data extent for CommitmentKey in HypernovaDeciderProver (#21206) END_COMMIT_OVERRIDE
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Adds `bb-rs` and `bb-rs-tests` targets to the root Makefile so the Rust FFI crate is built and link-tested as part of `fast` and `full` CI (not only `ci-barretenberg-full`). Also adds iOS and Android cross-compile targets (`bb-cpp-cross-arm64-ios`, `bb-cpp-cross-arm64-ios-sim`, `bb-cpp-cross-arm64-android`, `bb-cpp-cross-x86_64-android`) to the Makefile, wired into `bb-cpp-cross` so they get built during `release`. These were previously only built via the legacy `build_with_makefile` path in bootstrap.sh. This would have caught the libc++/libstdc++ mismatch (fixed in #21203) that was introduced when the Zig preset became the default.
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Summary
libstdc++on Linux, but barretenberg is built with Clang/libc++ (std::__1::ABI)cargo test --release --features ffilibc++on all platforms since barretenberg uses Clang/libc++ everywhere