1 files changed, 36 insertions, 0 deletions
diff --git a/meta/classes-recipe/python_pyo3.bbclass b/meta/classes-recipe/python_pyo3.bbclass
new file mode 100644
index 0000000000..9a32eac6fd
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+++ b/meta/classes-recipe/python_pyo3.bbclass
@@ -0,0 +1,36 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+#
+# This class helps make sure that Python extensions built with PyO3
+# and setuptools_rust properly set up the environment for cross compilation
+#
+
+inherit cargo python3-dir siteinfo
+
+export PYO3_CROSS="1"
+export PYO3_CROSS_PYTHON_VERSION="${PYTHON_BASEVERSION}"
+export PYO3_CROSS_LIB_DIR="${STAGING_LIBDIR}"
+export CARGO_BUILD_TARGET="${RUST_HOST_SYS}"
+export RUSTFLAGS
+export PYO3_PYTHON="${PYTHON}"
+export PYO3_CONFIG_FILE="${WORKDIR}/pyo3.config"
+
+python_pyo3_do_configure () {
+    cat > ${WORKDIR}/pyo3.config << EOF
+implementation=CPython
+version=${PYTHON_BASEVERSION}
+shared=true
+abi3=false
+lib_name=${PYTHON_DIR}
+lib_dir=${STAGING_LIBDIR}
+pointer_width=${SITEINFO_BITS}
+build_flags=WITH_THREAD
+suppress_build_script_link_lines=false
+EOF
+}
+
+EXPORT_FUNCTIONS do_configure