From 8bf25b4b838fe04ad3b9c28573c313deed4ef7c9 Mon Sep 17 00:00:00 2001
From: Flatcar Buildbot <buildbot@flatcar-linux.org>
Date: Mon, 29 Jul 2024 07:15:11 +0000
Subject: [PATCH] eclass/distutils-r1: Sync with Gentoo

It's from Gentoo commit 80a7960b9faa73152efd81e316f1083644817a02.
---
 .../portage-stable/eclass/distutils-r1.eclass    | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/sdk_container/src/third_party/portage-stable/eclass/distutils-r1.eclass b/sdk_container/src/third_party/portage-stable/eclass/distutils-r1.eclass
index 61c0a80323..fa8edb5cdf 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/distutils-r1.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/distutils-r1.eclass
@@ -195,7 +195,6 @@ esac
 # @CODE
 
 # @ECLASS_VARIABLE: DISTUTILS_ALLOW_WHEEL_REUSE
-# @DEFAULT_UNSET
 # @USER_VARIABLE
 # @DESCRIPTION:
 # If set to a non-empty value, the eclass is allowed to reuse a wheel
@@ -205,6 +204,7 @@ esac
 # This is an optimization that can avoid the overhead of calling into
 # the build system in pure Python packages and packages using the stable
 # Python ABI.
+DISTUTILS_ALLOW_WHEEL_REUSE=1
 
 # @ECLASS_VARIABLE: BUILD_DIR
 # @OUTPUT_VARIABLE
@@ -572,6 +572,9 @@ distutils_enable_sphinx() {
 # with the specified test runner.  Also copies the current value
 # of RDEPEND to test?-BDEPEND.  The test-runner argument must be one of:
 #
+# - import-check: `pytest --import-check` fallback (for use when there are
+#   no tests to run)
+#
 # - pytest: dev-python/pytest
 #
 # - setup.py: setup.py test (no deps included)
@@ -597,9 +600,13 @@ distutils_enable_tests() {
 	[[ ${#} -eq 1 ]] || die "${FUNCNAME} takes exactly one argument: test-runner"
 
 	local test_deps=${RDEPEND}
+	local test_pkgs=
 	case ${1} in
+		import-check)
+			test_pkgs+=' dev-python/pytest-import-check[${PYTHON_USEDEP}]'
+			;&
 		pytest)
-			local test_pkgs='>=dev-python/pytest-7.4.4[${PYTHON_USEDEP}]'
+			test_pkgs+=' >=dev-python/pytest-7.4.4[${PYTHON_USEDEP}]'
 			if [[ -n ${EPYTEST_TIMEOUT} ]]; then
 				test_pkgs+=' dev-python/pytest-timeout[${PYTHON_USEDEP}]'
 			fi
@@ -1560,6 +1567,9 @@ distutils-r1_python_test() {
 	_python_check_EPYTHON
 
 	case ${_DISTUTILS_TEST_RUNNER} in
+		import-check)
+			epytest --import-check "${BUILD_DIR}/install$(python_get_sitedir)"
+			;;
 		pytest)
 			epytest
 			;;
@@ -1933,7 +1943,7 @@ _distutils-r1_compare_installed_files() {
 	# Perform the check only if at least one potentially reusable wheel
 	# has been produced.  Nonpure packages (e.g. NumPy) may install
 	# interpreter configuration details into sitedir.
-	if [[ ${!DISTUTILS_WHEELS[*]} != *-none-any.whl* &&
+	if [[ ${!DISTUTILS_WHEELS[*]} != *py3-none-any.whl* &&
 			${!DISTUTILS_WHEELS[*]} != *-abi3-*.whl ]]; then
 		return
 	fi