Fix cross compilation for Python 3.10

.github/workflows/test.yml

@@ -201,19 +201,24 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        platform: [
-          { target: "aarch64-unknown-linux-gnu", arch: "aarch64" },
-          { target: "armv7-unknown-linux-gnueabihf", arch: "armv7" },
-          { target: "s390x-unknown-linux-gnu", arch: "s390x" },
-        ]
+        platform:
+          - target: aarch64-unknown-linux-gnu
+            arch: aarch64
+            abi: cp36-cp36m
+          - target: armv7-unknown-linux-gnueabihf
+            arch: armv7
+            abi: cp39-cp39
+          # - target: s390x-unknown-linux-gnu
+          #   arch: s390x
+          #   abi: cp310-cp310
     steps:
       - uses: actions/checkout@v2
       - name: Build Wheels
         run: |
           echo 'curl -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
           source ~/.cargo/env
           rustup target add ${{ matrix.platform.target }}
-          export PYO3_CROSS_LIB_DIR=/opt/python/cp36-cp36m/lib
+          export PYO3_CROSS_LIB_DIR=/opt/python/${{ matrix.platform.abi }}/lib
           cargo run --target x86_64-unknown-linux-gnu -- build -i python3.9 --release --out dist --no-sdist --target ${{ matrix.platform.target }} -m test-crates/pyo3-mixed/Cargo.toml
           ' > build-wheel.sh
           docker run --rm -v "$PWD":/io -w /io messense/manylinux2014-cross:${{ matrix.platform.arch }} bash build-wheel.sh

Changelog.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Fix finding conda Python interpreters on Windows by RobertColton in [#644](https://github.com/PyO3/maturin/pull/644)
 * Fix Unicode metadata when uploading to PyPI in [#645](https://github.com/PyO3/maturin/pull/645)
 * Fix incorrectly folded long `Summary` metadata
+* Fix cross compilation for Python 3.10 in [#646](https://github.com/PyO3/maturin/pull/646)
 
 ## [0.11.4] - 2021-09-28
 

src/cross_compile.rs

@@ -49,7 +49,7 @@ pub fn parse_sysconfigdata(
     let mut script = fs::read_to_string(config_path)?;
     script += r#"
 print("version_major", build_time_vars["VERSION"][0])  # 3
-print("version_minor", build_time_vars["VERSION"][2])  # E.g., 8
+print("version_minor", build_time_vars["VERSION"][2:])  # E.g., 8, 10
 KEYS = [
     "ABIFLAGS",
     "EXT_SUFFIX",