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Enable LTO for wit-dylib testing #2422

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Merged
alexcrichton merged 1 commit into from
Jan 20, 2026
+7 −1
Merged

Enable LTO for wit-dylib testing #2422

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2 changes: 1 addition & 1 deletion .github/workflows/main.yml
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Expand Up @@ -112,7 +112,7 @@ jobs:
- os: ubuntu-latest
rust: beta
- os: ubuntu-latest
rust: nightly-2025-12-05
rust: nightly-2026-01-20
- os: macos-latest
rust: stable
- os: windows-latest
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6 changes: 6 additions & 0 deletions crates/wit-dylib/test-programs/artifacts/build.rs
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Expand Up @@ -33,6 +33,12 @@ https://github.com/webassembly/wasi-sdk
format!("CARGO_TARGET_{upcase}_LINKER"),
wasi_sdk_path.join("bin/clang"),
)
// FIXME: this is needed since the Rust standard library is depending on
// a buggy libc crate which has bindings for symbols that don't exist.
// Once libc is updated in rust-lang/rust and that propagates to stable
// this can be removed.
.env("CARGO_PROFILE_DEV_LTO", "true")
.env("CARGO_PROFILE_RELEASE_LTO", "true")
.env_remove("CARGO_ENCODED_RUSTFLAGS");
if !debug {
cargo.arg("--release");
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