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Use ICF for macOS release builds #3709

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Merged
charliermarsh merged 1 commit into from
Jul 1, 2026
Merged

Use ICF for macOS release builds #3709

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8 changes: 8 additions & 0 deletions .github/workflows/build-binaries.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,10 @@ jobs:
maturin-version: v1.13.3
target: x86_64
args: --release --locked --out dist --compatibility pypi
env:
# Use Rust's bundled Mach-O LLD, which supports ICF.
# ICF reduces the macOS x86_64 ty binary size by ~1.1%.
RUSTFLAGS: "-C linker=rust-lld -C linker-flavor=ld64.lld -C link-arg=--icf=safe"
- name: "Upload wheels"
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
Expand Down Expand Up @@ -130,6 +134,10 @@ jobs:
maturin-version: v1.13.3
target: aarch64
args: --release --locked --out dist --compatibility pypi
env:
# Use Rust's bundled Mach-O LLD, which supports ICF.
# ICF reduces the macOS aarch64 ty binary size by ~0.7%.
RUSTFLAGS: "-C linker=rust-lld -C linker-flavor=ld64.lld -C link-arg=--icf=safe"
- name: "Test wheel - aarch64"
run: |
pip install dist/"${PACKAGE_NAME}"-*.whl --force-reinstall
Expand Down