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build: link libatomic on Linux static builds #39

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Merged
adsharma merged 1 commit into from
Sep 19, 2026
Merged

build: link libatomic on Linux static builds #39

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5 changes: 5 additions & 0 deletions build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,11 @@ fn link_libraries(link_bundled_deps: bool) {
println!("cargo:rustc-link-lib=dylib=c++");
} else {
println!("cargo:rustc-link-lib=dylib=stdc++");
// The perf build's buffer manager does 16-byte atomic operations,
// which GCC lowers to libatomic calls (`__atomic_compare_exchange`).
// The linker passes --as-needed, so builds that don't use it
// (compat) get no extra runtime dependency.
println!("cargo:rustc-link-lib=dylib=atomic");
}

link_openssl();
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