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Fix macOS CI: set SDKROOT/CONDA_BUILD_SYSROOT for conda-forge cross-compiler #342

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Merged
briantoby merged 3 commits into from
Jun 26, 2026
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Fix macOS CI: set SDKROOT/CONDA_BUILD_SYSROOT for conda-forge cross-compiler #342

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Copilot Jun 26, 2026
d44f32d
Fix macOS CI: set SDKROOT/CONDA_BUILD_SYSROOT for conda-forge cross-c…
Copilot Jun 26, 2026
178392b
Add comment explaining MACOSX_DEPLOYMENT_TARGET=11.0 choice
Copilot Jun 26, 2026
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13 changes: 13 additions & 0 deletions .github/workflows/smoke_test.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,19 @@ jobs:
pixi-version: v0.39.5
manifest-path: pixi/pixi.toml

# On macOS, the conda-forge cross-compiler (arm64-apple-darwin20.0.0-clang)
# requires SDKROOT/CONDA_BUILD_SYSROOT to link against libSystem.dylib.
# Without this, meson's C compiler sanity check fails on newer Xcode versions
# (e.g. Xcode 26+) because dyld rejects executables missing LC_LOAD_DYLIB.
# MACOSX_DEPLOYMENT_TARGET=11.0 matches the compiler's darwin20 target triplet.
- name: Set macOS SDK paths
if: runner.os == 'macOS'
run: |
SDKROOT=$(xcrun --sdk macosx --show-sdk-path)
echo "SDKROOT=$SDKROOT" >> $GITHUB_ENV
echo "CONDA_BUILD_SYSROOT=$SDKROOT" >> $GITHUB_ENV
echo "MACOSX_DEPLOYMENT_TARGET=11.0" >> $GITHUB_ENV

# run install to see if it works
- name: Build
# run: pixi run --manifest-path pixi/pixi.toml -e ${{ matrix.env }} install${{ matrix.os.cmd_extra }}
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