- workflow fix

.github/workflows/publish_pypi.yml

@@ -72,13 +72,14 @@ jobs:
       - name: Install osxcross
         run: |
           export PATH="$HOME/.osxcross/bin:$PATH"
-          if ! command -v osxcross >/dev/null 2>&1; then
+          if [ ! -d "$HOME/.osxcross/bin" ]; then
             wget ${{ secrets.OSXCROSS_LINK }} -O osxcross.tar.gz
             tar -xzf osxcross.tar.gz -C ~/
             mv ~/osxcross ~/.osxcross
           fi
 
       - name: Build wheels
+        shell: bash
         run: |
           export PATH="$HOME/.osxcross/bin:$PATH"
           echo "HOME=$HOME CARGO_HOME=$CARGO_HOME RUSTUP_HOME=$RUSTUP_HOME"
@@ -103,10 +104,52 @@ jobs:
           rustup target add aarch64-pc-windows-msvc
           maturin build --release --out dist --target aarch64-pc-windows-msvc --auditwheel repair -m ome-metadata/Cargo.toml
 
+          # Use osxcross, not Zig, for macOS SDK linking.
+          shopt -s nullglob
+          sdks=("$HOME"/.osxcross/SDK/MacOSX*.sdk)
+          if [ "${#sdks[@]}" -ne 1 ] || [ ! -d "${sdks[0]}" ]; then
+            echo "Expected exactly one macOS SDK under $HOME/.osxcross/SDK" >&2
+            exit 1
+          fi
+          export SDKROOT="$(realpath "${sdks[0]}")"
+          echo "Using SDKROOT=$SDKROOT"
+
+          find_osxcross_tool() {
+            local arch="$1" tool="$2" candidate
+            local matches=()
+            for candidate in "$HOME"/.osxcross/bin/"$arch"-apple-darwin*-"$tool"; do
+              if [ -x "$candidate" ]; then
+                matches+=("$candidate")
+              fi
+            done
+            if [ "${#matches[@]}" -ne 1 ]; then
+              echo "Expected exactly one osxcross $tool for $arch; found ${#matches[@]}" >&2
+              return 1
+            fi
+            printf '%s\n' "${matches[0]}"
+          }
+
+          CARGO_TARGET_X86_64_APPLE_DARWIN_LINKER="$(find_osxcross_tool x86_64 clang)"
+          export CC_x86_64_apple_darwin="$CARGO_TARGET_X86_64_APPLE_DARWIN_LINKER"
+          CXX_x86_64_apple_darwin="$(find_osxcross_tool x86_64 clang++)"
+          # osxcross distributions may call the ARM64 architecture arm64 or aarch64.
+          arm_arch=arm64
+          arm_compilers=("$HOME"/.osxcross/bin/arm64-apple-darwin*-clang)
+          if [ "${#arm_compilers[@]}" -eq 0 ]; then
+            arm_arch=aarch64
+          fi
+          CARGO_TARGET_AARCH64_APPLE_DARWIN_LINKER="$(find_osxcross_tool "$arm_arch" clang)"
+          export CC_aarch64_apple_darwin="$CARGO_TARGET_AARCH64_APPLE_DARWIN_LINKER"
+          CXX_aarch64_apple_darwin="$(find_osxcross_tool "$arm_arch" clang++)"
+          export CARGO_TARGET_X86_64_APPLE_DARWIN_LINKER CXX_x86_64_apple_darwin
+          export CARGO_TARGET_AARCH64_APPLE_DARWIN_LINKER CXX_aarch64_apple_darwin
+          "$CC_x86_64_apple_darwin" --version
+          "$CC_aarch64_apple_darwin" --version
+
           rustup target add x86_64-apple-darwin
-          maturin build --release --out dist --target x86_64-apple-darwin --zig --auditwheel repair -m ome-metadata/Cargo.toml
+          MACOSX_DEPLOYMENT_TARGET=10.13 maturin build --release --out dist --target x86_64-apple-darwin --auditwheel repair -m ome-metadata/Cargo.toml
           rustup target add aarch64-apple-darwin
-          maturin build --release --out dist --target aarch64-apple-darwin --zig --auditwheel repair -m ome-metadata/Cargo.toml
+          MACOSX_DEPLOYMENT_TARGET=11.0 maturin build --release --out dist --target aarch64-apple-darwin --auditwheel repair -m ome-metadata/Cargo.toml
 
       - name: Store cache
         uses: actions/cache/save@v4