dev-python/ruamel-yaml-clib: Workaround Cython build failure

Closes: https://bugs.gentoo.org/898716
Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/ruamel-yaml-clib/ruamel-yaml-clib-0.2.7.ebuild

@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
 PYTHON_COMPAT=( pypy3 python3_{9..11} )
 
@@ -16,23 +17,28 @@ HOMEPAGE="
 	https://pypi.org/project/ruamel.yaml.clib/
 	https://sourceforge.net/projects/ruamel-yaml-clib/
 "
-# Lacks .pyx files for cythonizing for py3.11
-#SRC_URI="mirror://pypi/${MY_PN:0:1}/${MY_PN}/${MY_P}.tar.gz"
+# sdist lacks .pyx files for cythonizing
 SRC_URI="mirror://sourceforge/ruamel-dl-tagged-releases/${MY_P}.tar.xz"
-S=${WORKDIR}/${MY_P}
+# workaround https://bugs.gentoo.org/898716
+S=${WORKDIR}/ruamel_yaml_clib
 
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="amd64 arm arm64 ~hppa ~ia64 ppc ppc64 ~riscv sparc x86"
 
 BDEPEND="
-	<dev-python/cython-2.99[${PYTHON_USEDEP}]
+	dev-python/cython[${PYTHON_USEDEP}]
 "
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-0.2.7-clang-16.patch
 )
 
+src_unpack() {
+	default
+	mv "${MY_P}" ruamel_yaml_clib || die
+}
+
 src_configure() {
 	cythonize -3 _ruamel_yaml.pyx || die
 }