dev-python/cython: Bump to 0.28.4

dev-python/cython/Manifest

@@ -1,3 +1,4 @@
 DIST Cython-0.25.2.tar.gz 1703315 BLAKE2B e458604d0843afa128c6019244220bd6b3dd6653013698aa67ee2f71555f09813a8136ef92d6dc51ca38fe085e7bedc5e01d1a32bbd0885e62bd91c2e482bebd SHA512 1974b9374aeedb030307dc95aa6560ce9d5e1652783cd4552e96ef11663c73dd263e3521b68e7712abbb31628011e2e66320c5ee2577968684e2679eb80726e1
 DIST Cython-0.26.1.tar.gz 1725133 BLAKE2B b2c0433e8154ad76d921677608cae42a793326015ff320d8cd61818e5eb5fb4daf73ad4e72760d84f4cdaa2386b87d719cf9cd41584b781d4e2021e377a58422 SHA512 cdf31afaba78209c37a224345471c5c822b78c6d26c51583c46669b6b2b57b4952b33a839a51d06c3330fdff889345ac611fbaa2b2f17498cb02f3b5675f7948
 DIST Cython-0.28.2.tar.gz 1878797 BLAKE2B f04ae2b39ace94f33341bdc4f5e0871d34523070345340adcbfbfb1629e5bd6e2e6db6a0cf24dc392e245fd3c4ae162eae2e14af1c5dcf20896e5d2983c1ea0a SHA512 7d09d1fdc10f96eb6121657b71e059c38c479b4ca180965a8e5adb89ac0f9be50260ea46197c45e8ddc7c1339b9b88c140dac2c4a7a49e1943fb4bf24a73d082
+DIST Cython-0.28.4.tar.gz 1880943 BLAKE2B a97314147294c95fa0bd6d3fa1a1315d81f8abb46a1f2196009c1ef6f0dd7f47f81a7b31ab81d1fd00e8de37878a18a22d225055181ee74ffe4cc8105d84cd75 SHA512 67d2da2d776fc02193cfe98c8942e93905ec5e30bf4e0f9d5c965d930a034936d4c29c8248fccefff5db6d4dee054ec854994bea63fa3f64ff65df7550997c29

dev-python/cython/cython-0.28.4.ebuild

@@ -0,0 +1,78 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 python3_{4,5,6} )
+PYTHON_REQ_USE="threads(+)"
+
+inherit distutils-r1 toolchain-funcs elisp-common
+
+MY_PN="Cython"
+MY_P="${MY_PN}-${PV/_/}"
+
+DESCRIPTION="A Python to C compiler"
+HOMEPAGE="http://cython.org https://pypi.org/project/Cython/"
+SRC_URI="mirror://pypi/${MY_PN:0:1}/${MY_PN}/${MY_P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x64-solaris ~x86-solaris"
+
+IUSE="doc emacs test"
+
+RDEPEND="
+	emacs? ( virtual/emacs )
+"
+DEPEND="${RDEPEND}
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	doc? ( dev-python/sphinx[${PYTHON_USEDEP}] )
+	test? ( dev-python/numpy[${PYTHON_USEDEP}] )"
+
+SITEFILE=50cython-gentoo.el
+S="${WORKDIR}/${MY_PN}-${PV%_*}"
+
+python_compile() {
+	if ! python_is_python3; then
+		local CFLAGS="${CFLAGS} -fno-strict-aliasing"
+		local CXXFLAGS="${CXXFLAGS} -fno-strict-aliasing"
+	fi
+
+	# Python gets confused when it is in sys.path before build.
+	local -x PYTHONPATH=
+
+	distutils-r1_python_compile
+}
+
+python_compile_all() {
+	use emacs && elisp-compile Tools/cython-mode.el
+
+	use doc && unset XDG_CONFIG_HOME && emake -C docs html
+}
+
+python_test() {
+	tc-export CC
+	# https://github.com/cython/cython/issues/1911
+	local -x CFLAGS="${CFLAGS} -fno-strict-overflow"
+	"${PYTHON}" runtests.py -vv --work-dir "${BUILD_DIR}"/tests \
+		|| die "Tests fail with ${EPYTHON}"
+}
+
+python_install_all() {
+	local DOCS=( CHANGES.rst README.rst ToDo.txt USAGE.txt )
+	use doc && local HTML_DOCS=( docs/build/html/. )
+	distutils-r1_python_install_all
+
+	if use emacs; then
+		elisp-install ${PN} Tools/cython-mode.*
+		elisp-site-file-install "${FILESDIR}/${SITEFILE}"
+	fi
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}