[gentoo-commits] repo/gentoo:master commit in: dev-lang/python/

["Michał Górny" <mgorny@gentoo.org>]

commit:     ecfd873d30b02f04c5a1522c471ff65a312b3084
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Wed Oct 16 04:40:47 2024 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Wed Oct 16 04:54:33 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ecfd873d

dev-lang/python: Bump to 3.14.0_alpha1

Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 dev-lang/python/Manifest                    |   3 +
 dev-lang/python/python-3.14.0_alpha1.ebuild | 667 ++++++++++++++++++++++++++++
 2 files changed, 670 insertions(+)

diff --git a/dev-lang/python/Manifest b/dev-lang/python/Manifest
index daddb0dad1f4..38e0a28aa9e8 100644
--- a/dev-lang/python/Manifest
+++ b/dev-lang/python/Manifest
@@ -10,6 +10,8 @@ DIST Python-3.12.7.tar.xz 20444032 BLAKE2B eed8744261cab3b401963ec5187a8b814adb9
 DIST Python-3.12.7.tar.xz.asc 963 BLAKE2B 8c7db3d1971d93a10c611a2e6dd3679d0b331b48df87b5fe410b089061e48753d98af67084d4f051a31ae803fce3aa3c7af7cba9c692640f50068bd1e46f40e6 SHA512 4d0a7a0da2c81888e93d8ff89ca2ed4bb85a7b0bd00f0d54a14e2c201affac2677ef3984d2b5aea253e624f6465548d9032eefdd9033c1eb3864d82cfd8d3df0
 DIST Python-3.13.0.tar.xz 22532980 BLAKE2B 4a4e397199402de8c9fe8e4d63443ed972cbe8a4f541743908d699c7987127d159d600fd14145b6a946e8671426279d230c9155fdc5863c1e49a945eedcbf21b SHA512 44a143c9b96b55b01885ec020c3364265bda55289615cd7d5071915b0d0178a6f35e7551a89090001fcb7f3172d38177a56bf8b8532b15c9dbc50295c9210152
 DIST Python-3.13.0.tar.xz.asc 963 BLAKE2B d05f02692a9fea42b73dbfe5dc42bd6533555e5ecb848510d2b94bb7f0e55d4a0f89bcd20b073ed2c7f7a68be35b12cb6dbff6bc16fc9a4592ded2c339ada7fd SHA512 1b8bb0fe4eb93e31ec1770e90b94d44b5864c0391aad5dcba3a30d8e505d9b17107385414353c0060007f8a536254f49b8e919f36ddf6421a6e4330f817f1a3e
+DIST Python-3.14.0a1.tar.xz 22613224 BLAKE2B 1427d8a8e500bceb667852dd227bf00d1dc77cde6513e3202d5e0fb8e0019b4f214ac1ee1686e833d52f4200c667da573e84bea6eb19f463d018d484b82cfa9f SHA512 f96e8923662c1ba5ffb99673e59f5ce2366b13ea853e21e5a5c74efcf0a36f20d00612a9b882caf6482d2179b7315ae0331dcb45be19b7b9676f0ed4bf2256b8
+DIST Python-3.14.0a1.tar.xz.sigstore 4799 BLAKE2B 79c271a133e49f46aa478f9645a9c6998081538a05bd20395155c9b490cf13e11c47bb72a60f82b8297fb870af1c67922af648c9ba8fab6e3b31f7040991c39f SHA512 5115325d0a2f43bd0cc3d0888cad78deb90dfb36976c3341f0c237b15334883d1df3fee1dce53af7fe70ff9d630a98c9df4c2524f36183f61a74dd69f69e6257
 DIST Python-3.8.20.tar.xz 18962788 BLAKE2B 715c75e0c0a3d3b77af7f07478311bb0554b80aac72915be703aa2d0dd6459a972e5669808e64da14a0b91bb183e00655055c1726f302dc3ccd8721e3b4ae3e6 SHA512 3c9341ee1fd33cb687958dcf2b7c0c7700489726c4d530c3e9d9537d46a6ab534541a4b312232d8505bea395a07e4518c42d75fb7571103e6b266f8f44115c61
 DIST Python-3.8.20.tar.xz.asc 833 BLAKE2B 5c86c15a1090b42e42bb7512565b1a7ad9d2137d59e9fd1ab0f83fdfc37dfcf184389418d6703db809e9c8c04a169af292665a2b58bf5dc61b7724ecbb4132d9 SHA512 a751ae0407a593d97acac4d5f8a0456580c753efa12a7d960125c219b4897fdb26fc1ffd43d8ea33ad1449162dd3b2904c16b6c51c57561ba73de3ffa62e0eed
 DIST Python-3.9.20.tar.xz 19648968 BLAKE2B 80a337ff406130599b8320068d11bc275d23473cedd7c85fcb9e40134f0f2d533be6e712139e788a6423cdc74cea938f306aa37c2a5099e3051f3e390159279c SHA512 c828f33edf1704e3149499d6d34e89264cb5cdb2b09ff05561641b359716d7996f0fe928629e09f006b1fd7850fdaf937275919c7fdd83f5efc32707c64d814b
@@ -21,5 +23,6 @@ DIST python-gentoo-patches-3.12.6_p2.tar.xz 8144 BLAKE2B 2f36ce972e0b3e2884c9df6
 DIST python-gentoo-patches-3.12.6_p4-r1.tar.xz 9072 BLAKE2B 831f6c4284035832e0536ad3211d10c078e6c356e1fa593dd45984b29253deaf703bcb71e1b488508992dd37d5a140591c9193f1620bb966e39b048e4d5c6746 SHA512 9c61e0396c98fb45f3dccad9165e3f2b7bbeabd4a6fe88cc6e05a9d3012e39068571e63527dc831efaf24cb0e8fee75f60454481b2d1a0a44bedba69a7ed5c95
 DIST python-gentoo-patches-3.12.7_p1-r1.tar.xz 10552 BLAKE2B c71ffbbaa4dccd012fced7979c54f2b895ac207a892fd4b0118ab9ef678931c5449f6205855bf5fab9bc7fb5e5af0fc7c5b89bab608e5539855db571bb9d3aa4 SHA512 62207e2eb44e4eeb464ba4bdcefe15b3e03793793cbd033c153cdbf1c9a861779f3bb7259dc09e786c183450123ea283583d9870eca9d6c7b25e5f3dba6f89d6
 DIST python-gentoo-patches-3.13.0.tar.xz 8316 BLAKE2B 8fb8ba8f41f310140ad7066b614952023112d5043e5d82058364125611785144c1843e87eecb7669bcbab51c40d0694069526219f7419a7009517ce0821b74ba SHA512 0eb31ebfa3411020aa70b3b66fd7eec98b4b7a686b0e8f1f7ed76a8186a7c1ee85ccd9565a86a1d7ec13b975855eeb7303036af05e2dfdce3d64e4ad99299df4
+DIST python-gentoo-patches-3.14.0a1.tar.xz 5700 BLAKE2B 900c4e98a4549decf2dcbee0e9b7d190ba4efa416164986a5a600d55d2b9461dab7472cb8e5795db8d47ac0e72f237943f3cb4f962695a6a50f121123ed393e5 SHA512 22c612cdaa2cab4c845b73ab7d514969e1fffae66c96a040097a2b4b6a166f3bcaeb5b9e93ade5d5d76f04247c0d91bd554f3d0d5afefafae26cf7a8ff85ad6d
 DIST python-gentoo-patches-3.8.20_p2.tar.xz 42296 BLAKE2B c0f2c4d0adcb6c10eb68342b911016666cb68308717a5ca1369100a39229ce16c6e9dfdf9e1b4cffe0191d03ca5ee7d9568cd24885fd0f4f32f14e2e8c0a96a3 SHA512 cb9e98c0dd823b6e4f8a60e9095ab58e596cd9411b675678a0d4adefc92b37e14cecc7cecb82e287ac34a9ce1d4595f261b0736bcc9fc62c43c7d8c0b3be70e7
 DIST python-gentoo-patches-3.9.20_p1.tar.xz 34944 BLAKE2B 332454661adc03033c7e8a5fcc91081b7d405826e9bf89bb2c2e178a0795e4415c9e87ae923756470ee973441f242e194b397354964b8f43dadd4965d210a4f4 SHA512 19bf7227535526a733633723b75d49786dfd8738595c1115b4e05665bc13a1ea70cbf0cc62cb27e81c75f5db2aa56ab985eaa5abde6243697caccb2cb5288005

diff --git a/dev-lang/python/python-3.14.0_alpha1.ebuild b/dev-lang/python/python-3.14.0_alpha1.ebuild
new file mode 100644
index 000000000000..6d5320ac8d1a
--- /dev/null
+++ b/dev-lang/python/python-3.14.0_alpha1.ebuild
@@ -0,0 +1,667 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="8"
+
+LLVM_COMPAT=( 18 )
+LLVM_OPTIONAL=1
+WANT_LIBTOOL="none"
+
+inherit autotools check-reqs flag-o-matic linux-info llvm-r1
+inherit multiprocessing pax-utils python-utils-r1 toolchain-funcs
+inherit verify-sig
+
+MY_PV=${PV/_alpha/a}
+MY_P="Python-${MY_PV%_p*}"
+PYVER=$(ver_cut 1-2)
+PATCHSET="python-gentoo-patches-${MY_PV}"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="
+	https://www.python.org/
+	https://github.com/python/cpython/
+"
+SRC_URI="
+	https://www.python.org/ftp/python/${PV%%_*}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~mgorny/dist/python/${PATCHSET}.tar.xz
+	verify-sig? (
+		https://www.python.org/ftp/python/${PV%%_*}/${MY_P}.tar.xz.sigstore
+	)
+"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="PSF-2"
+SLOT="${PYVER}"
+IUSE="
+	bluetooth build debug +ensurepip examples gdbm jit
+	libedit +ncurses pgo +readline +sqlite +ssl test tk valgrind
+"
+REQUIRED_USE="jit? ( ${LLVM_REQUIRED_USE} )"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="
+	app-arch/bzip2:=
+	app-arch/xz-utils:=
+	app-crypt/libb2
+	>=dev-libs/expat-2.1:=
+	dev-libs/libffi:=
+	dev-libs/mpdecimal:=
+	dev-python/gentoo-common
+	>=sys-libs/zlib-1.1.3:=
+	virtual/libintl
+	ensurepip? ( dev-python/ensurepip-pip )
+	gdbm? ( sys-libs/gdbm:=[berkdb] )
+	kernel_linux? ( sys-apps/util-linux:= )
+	ncurses? ( >=sys-libs/ncurses-5.2:= )
+	readline? (
+		!libedit? ( >=sys-libs/readline-4.1:= )
+		libedit? ( dev-libs/libedit:= )
+	)
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? ( >=dev-libs/openssl-1.1.1:= )
+	tk? (
+		>=dev-lang/tcl-8.0:=
+		>=dev-lang/tk-8.0:=
+		dev-tcltk/blt:=
+		dev-tcltk/tix
+	)
+"
+# bluetooth requires headers from bluez
+DEPEND="
+	${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? (
+		dev-python/ensurepip-pip
+		dev-python/ensurepip-setuptools
+		dev-python/ensurepip-wheel
+	)
+	valgrind? ( dev-debug/valgrind )
+"
+# autoconf-archive needed to eautoreconf
+BDEPEND="
+	dev-build/autoconf-archive
+	app-alternatives/awk
+	virtual/pkgconfig
+	jit? (
+		$(llvm_gen_dep '
+			sys-devel/clang:${LLVM_SLOT}
+			sys-devel/llvm:${LLVM_SLOT}
+		')
+	)
+	verify-sig? ( >=sec-keys/openpgp-keys-python-20221025 )
+"
+RDEPEND+="
+	!build? ( app-misc/mime-types )
+"
+if [[ ${PV} != *_alpha* ]]; then
+	RDEPEND+="
+		dev-lang/python-exec[python_targets_python${PYVER/./_}(-)]
+	"
+fi
+
+# https://www.python.org/downloads/metadata/sigstore/
+VERIFY_SIG_METHOD=sigstore
+VERIFY_SIG_CERT_IDENTITY=hugo@python.org
+VERIFY_SIG_CERT_OIDC_ISSUER=https://github.com/login/oauth
+
+# large file tests involve a 2.5G file being copied (duplicated)
+CHECKREQS_DISK_BUILD=5500M
+
+QA_PKGCONFIG_VERSION=${PYVER}
+# false positives -- functions specific to *BSD
+QA_CONFIG_IMPL_DECL_SKIP=( chflags lchflags )
+
+declare -rA PYTHON_KERNEL_CHECKS=(
+	["CROSS_MEMORY_ATTACH"]="test_external_inspection" #bug 938589
+	["DNOTIFY"]="test_fcntl" # bug 938662
+)
+
+pkg_pretend() {
+	if use pgo || use test; then
+		check-reqs_pkg_pretend
+	fi
+
+	if use jit; then
+		ewarn "USE=jit is considered experimental upstream.  Using it"
+		ewarn "could lead to unexpected breakage, including race conditions"
+		ewarn "and crashes, respectively.  Please do not file Gentoo bugs, unless"
+		ewarn "you can reproduce the problem with dev-lang/python[-jit].  Instead,"
+		ewarn "please consider reporting JIT problems upstream."
+	fi
+}
+
+pkg_setup() {
+	if [[ ${MERGE_TYPE} != binary ]]; then
+		use jit && llvm-r1_pkg_setup
+		if use test || use pgo; then
+			check-reqs_pkg_setup
+
+			local CONFIG_CHECK
+			for f in "${!PYTHON_KERNEL_CHECKS[@]}"; do
+				CONFIG_CHECK+="~${f} "
+			done
+			linux-info_pkg_setup
+		fi
+	fi
+}
+
+src_unpack() {
+	if use verify-sig; then
+		verify-sig_verify_detached "${DISTDIR}"/${MY_P}.tar.xz{,.sigstore}
+	fi
+	default
+}
+
+src_prepare() {
+	# Ensure that internal copies of expat and libffi are not used.
+	# TODO: Makefile has annoying deps on expat headers
+	#rm -r Modules/expat || die
+
+	local PATCHES=(
+		"${WORKDIR}/${PATCHSET}"
+	)
+
+	default
+
+	# force the correct number of jobs
+	# https://bugs.gentoo.org/737660
+	sed -i -e "s:-j0:-j$(makeopts_jobs):" Makefile.pre.in || die
+
+	# breaks tests when using --with-wheel-pkg-dir
+	rm -r Lib/test/wheeldata || die
+
+	eautoreconf
+}
+
+build_cbuild_python() {
+	# Hack to workaround get_libdir not being able to handle CBUILD, bug #794181
+	local cbuild_libdir=$(unset PKG_CONFIG_PATH ; $(tc-getBUILD_PKG_CONFIG) --keep-system-libs --libs-only-L libffi)
+
+	# pass system CFLAGS & LDFLAGS as _NODIST, otherwise they'll get
+	# propagated to sysconfig for built extensions
+	#
+	# -fno-lto to avoid bug #700012 (not like it matters for mini-CBUILD Python anyway)
+	local -x CFLAGS_NODIST="${BUILD_CFLAGS} -fno-lto"
+	local -x LDFLAGS_NODIST=${BUILD_LDFLAGS}
+	local -x CFLAGS= LDFLAGS=
+	local -x BUILD_CFLAGS="${CFLAGS_NODIST}"
+	local -x BUILD_LDFLAGS=${LDFLAGS_NODIST}
+
+	# We need to build our own Python on CBUILD first, and feed it in.
+	# bug #847910
+	local myeconfargs_cbuild=(
+		"${myeconfargs[@]}"
+
+		--prefix="${BROOT}"/usr
+		--libdir="${cbuild_libdir:2}"
+
+		# Avoid needing to load the right libpython.so.
+		--disable-shared
+
+		# As minimal as possible for the mini CBUILD Python
+		# we build just for cross to satisfy --with-build-python.
+		--without-lto
+		--without-readline
+		--disable-optimizations
+	)
+
+	mkdir "${WORKDIR}"/${P}-${CBUILD} || die
+	pushd "${WORKDIR}"/${P}-${CBUILD} &> /dev/null || die
+
+	# Avoid as many dependencies as possible for the cross build.
+	mkdir Modules || die
+	cat > Modules/Setup.local <<-EOF || die
+		*disabled*
+		nis
+		_dbm _gdbm
+		_sqlite3
+		_hashlib _ssl
+		_curses _curses_panel
+		readline
+		_tkinter
+		pyexpat
+		zlib
+		# We disabled these for CBUILD because Python's setup.py can't handle locating
+		# libdir correctly for cross. This should be rechecked for the pure Makefile approach,
+		# and uncommented if needed.
+		#_ctypes
+	EOF
+
+	ECONF_SOURCE="${S}" econf_build "${myeconfargs_cbuild[@]}"
+
+	# Unfortunately, we do have to build this immediately, and
+	# not in src_compile, because CHOST configure for Python
+	# will check the existence of the --with-build-python value
+	# immediately.
+	emake
+	popd &> /dev/null || die
+}
+
+src_configure() {
+	# disable automagic bluetooth headers detection
+	if ! use bluetooth; then
+		local -x ac_cv_header_bluetooth_bluetooth_h=no
+	fi
+
+	append-flags -fwrapv
+	filter-flags -malign-double
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	# PKG_CONFIG needed for cross.
+	tc-export CXX PKG_CONFIG
+
+	local dbmliborder=
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	# Set baseline test skip flags.
+	COMMON_TEST_SKIPS=(
+		# this is actually test_gdb.test_pretty_print
+		-x test_pretty_print
+	)
+
+	# Arch-specific skips.  See #931888 for a collection of these.
+	case ${CHOST} in
+		alpha*)
+			COMMON_TEST_SKIPS+=(
+				-x test_builtin
+				-x test_capi
+				-x test_cmath
+				-x test_float
+				# timeout
+				-x test_free_threading
+				-x test_math
+				-x test_numeric_tower
+				-x test_random
+				-x test_statistics
+				# bug 653850
+				-x test_resource
+				-x test_strtod
+			)
+			;;
+		mips*)
+			COMMON_TEST_SKIPS+=(
+				-x test_ctypes
+				-x test_external_inspection
+				-x test_statistics
+			)
+			;;
+		powerpc64-*) # big endian
+			COMMON_TEST_SKIPS+=(
+				-x test_descr
+			)
+			;;
+		riscv*)
+			COMMON_TEST_SKIPS+=(
+				-x test_urllib2
+			)
+			;;
+		sparc*)
+			COMMON_TEST_SKIPS+=(
+				# bug 788022
+				-x test_multiprocessing_fork
+				-x test_multiprocessing_forkserver
+
+				-x test_ctypes
+				-x test_descr
+				# bug 931908
+				-x test_exceptions
+			)
+			;;
+	esac
+
+	# Kernel-config specific skips
+	for option in "${!PYTHON_KERNEL_CHECKS[@]}"; do
+		if ! linux_config_exists || ! linux_chkconfig_present "${option}"
+		then
+			COMMON_TEST_SKIPS+=( -x "${PYTHON_KERNEL_CHECKS[${option}]}" )
+		fi
+	done
+
+	# musl-specific skips
+	use elibc_musl && COMMON_TEST_SKIPS+=(
+		# various musl locale deficiencies
+		-x test__locale
+		-x test_c_locale_coercion
+		-x test_locale
+		-x test_re
+
+		# known issues with find_library on musl
+		# https://bugs.python.org/issue21622
+		-x test_ctypes
+
+		# fpathconf, ttyname errno values
+		-x test_os
+	)
+
+	if use pgo; then
+		local profile_task_flags=(
+			-m test
+			"-j$(makeopts_jobs)"
+			--pgo-extended
+			--verbose3
+			-u-network
+
+			# We use a timeout because of how often we've had hang issues
+			# here. It also matches the default upstream PROFILE_TASK.
+			--timeout 1200
+
+			"${COMMON_TEST_SKIPS[@]}"
+
+			-x test_dtrace
+
+			# All of these seem to occasionally hang for PGO inconsistently
+			# They'll even hang here but be fine in src_test sometimes.
+			# bug #828535 (and related: bug #788022)
+			-x test_asyncio
+			-x test_httpservers
+			-x test_logging
+			-x test_multiprocessing_fork
+			-x test_socket
+			-x test_xmlrpc
+
+			# Hangs (actually runs indefinitely executing itself w/ many cpython builds)
+			# bug #900429
+			-x test_tools
+
+			# Fails in profiling run, passes in src_test().
+			-x test_capi
+		)
+
+		# Arch-specific skips.  See #931888 for a collection of these.
+		case ${CHOST} in
+			alpha*)
+				profile_task_flags+=(
+					-x test_os
+				)
+				;;
+			hppa*)
+				profile_task_flags+=(
+					-x test_descr
+					# bug 931908
+					-x test_exceptions
+					-x test_os
+				)
+				;;
+			powerpc64-*) # big endian
+				profile_task_flags+=(
+					# bug 931908
+					-x test_exceptions
+				)
+				;;
+			riscv*)
+				profile_task_flags+=(
+					-x test_statistics
+				)
+				;;
+		esac
+
+		if has_version "app-arch/rpm" ; then
+			# Avoid sandbox failure (attempts to write to /var/lib/rpm)
+			profile_task_flags+=(
+				-x test_distutils
+			)
+		fi
+		local -x PROFILE_TASK="${profile_task_flags[*]}"
+	fi
+
+	local myeconfargs=(
+		# glibc-2.30 removes it; since we can't cleanly force-rebuild
+		# Python on glibc upgrade, remove it proactively to give
+		# a chance for users rebuilding python before glibc
+		ac_cv_header_stropts_h=no
+
+		--enable-shared
+		--without-static-libpython
+		--enable-ipv6
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--without-lto
+		--with-system-expat
+		--with-system-libmpdec
+		--with-platlibdir=lib
+		--with-pkg-config=yes
+		--with-wheel-pkg-dir="${EPREFIX}"/usr/lib/python/ensurepip
+		--enable-gil
+
+		$(use_with debug assertions)
+		$(use_enable jit experimental-jit)
+		$(use_enable pgo optimizations)
+		$(use_with readline readline "$(usex libedit editline readline)")
+		$(use_with valgrind)
+	)
+
+	# https://bugs.gentoo.org/700012
+	if tc-is-lto; then
+		append-cflags $(test-flags-CC -ffat-lto-objects)
+		myeconfargs+=(
+			--with-lto
+		)
+	fi
+
+	# Force-disable modules we don't want built.
+	# See Modules/Setup for docs on how this works. Setup.local contains our local deviations.
+	cat > Modules/Setup.local <<-EOF || die
+		*disabled*
+		nis
+		$(usev !gdbm '_gdbm _dbm')
+		$(usev !sqlite '_sqlite3')
+		$(usev !ssl '_hashlib _ssl')
+		$(usev !ncurses '_curses _curses_panel')
+		$(usev !readline 'readline')
+		$(usev !tk '_tkinter')
+	EOF
+
+	# disable implicit optimization/debugging flags
+	local -x OPT=
+
+	if tc-is-cross-compiler ; then
+		build_cbuild_python
+		myeconfargs+=(
+			# Point the imminent CHOST build to the Python we just
+			# built for CBUILD.
+			--with-build-python="${WORKDIR}"/${P}-${CBUILD}/python
+		)
+	fi
+
+	# pass system CFLAGS & LDFLAGS as _NODIST, otherwise they'll get
+	# propagated to sysconfig for built extensions
+	local -x CFLAGS_NODIST=${CFLAGS}
+	local -x LDFLAGS_NODIST=${LDFLAGS}
+	local -x CFLAGS= LDFLAGS=
+
+	# Fix implicit declarations on cross and prefix builds. Bug #674070.
+	if use ncurses; then
+		append-cppflags -I"${ESYSROOT}"/usr/include/ncursesw
+	fi
+
+	econf "${myeconfargs[@]}"
+
+	if grep -q "#define POSIX_SEMAPHORES_NOT_ENABLED 1" pyconfig.h; then
+		eerror "configure has detected that the sem_open function is broken."
+		eerror "Please ensure that /dev/shm is mounted as a tmpfs with mode 1777."
+		die "Broken sem_open function (bug 496328)"
+	fi
+
+	# install epython.py as part of stdlib
+	echo "EPYTHON='python${PYVER}'" > Lib/epython.py || die
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+	export PYTHONSTRICTEXTENSIONBUILD=1
+
+	# Save PYTHONDONTWRITEBYTECODE so that 'has_version' doesn't
+	# end up writing bytecode & violating sandbox.
+	# bug #831897
+	local -x _PYTHONDONTWRITEBYTECODE=${PYTHONDONTWRITEBYTECODE}
+
+	# Gentoo hack to disable accessing system site-packages
+	export GENTOO_CPYTHON_BUILD=1
+
+	if use pgo ; then
+		# bug 660358
+		local -x COLUMNS=80
+		local -x PYTHONDONTWRITEBYTECODE=
+	fi
+
+	# also need to clear the flags explicitly here or they end up
+	# in _sysconfigdata*
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Restore saved value from above.
+	local -x PYTHONDONTWRITEBYTECODE=${_PYTHONDONTWRITEBYTECODE}
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax-kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# this just happens to skip test_support.test_freeze that is broken
+	# without bundled expat
+	# TODO: get a proper skip for it upstream
+	local -x LOGNAME=buildbot
+
+	local test_opts=(
+		--verbose3
+		-u-network
+		-j "$(makeopts_jobs)"
+		"${COMMON_TEST_SKIPS[@]}"
+	)
+
+	# bug 660358
+	local -x COLUMNS=80
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	nonfatal emake -Onone test EXTRATESTOPTS="${test_opts[*]}" \
+		CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local ret=${?}
+
+	[[ ${ret} -eq 0 ]] || die "emake test failed"
+}
+
+src_install() {
+	local libdir=${ED}/usr/lib/python${PYVER}
+
+	# -j1 hack for now for bug #843458
+	emake -j1 DESTDIR="${D}" TEST_MODULES=no altinstall
+
+	# Fix collisions between different slots of Python.
+	rm "${ED}/usr/$(get_libdir)/libpython3.so" || die
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}/usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}/usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax-kernel]; then
+		pax-mark E "${ED}/usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}/usr/bin/${abiver}"
+	fi
+
+	rm -r "${libdir}"/ensurepip/_bundled || die
+	if ! use sqlite; then
+		rm -r "${libdir}/"sqlite3 || die
+	fi
+	if ! use tk; then
+		rm -r "${ED}/usr/bin/idle${PYVER}" || die
+		rm -r "${libdir}/"{idlelib,tkinter} || die
+	fi
+
+	ln -s ../python/EXTERNALLY-MANAGED "${libdir}/EXTERNALLY-MANAGED" || die
+
+	dodoc Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		docinto examples
+		find Tools -name __pycache__ -exec rm -fr {} + || die
+		dodoc -r Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(
+		printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' |
+		emake --no-print-directory -s -f - 2>/dev/null
+	)
+	newins Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}/etc/conf.d/pydoc-${PYVER}" \
+		"${ED}/etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	local EPYTHON=python${PYVER}
+	local scriptdir=${D}$(python_get_scriptdir)
+	mkdir -p "${scriptdir}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" "${scriptdir}/python${pymajor}" || die
+	ln -s "python${pymajor}" "${scriptdir}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${scriptdir}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${scriptdir}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" "${scriptdir}/python-config" || die
+	# pydoc
+	ln -s "../../../bin/pydoc${PYVER}" "${scriptdir}/pydoc" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" "${scriptdir}/idle" || die
+	fi
+}
+
+pkg_postinst() {
+	local v
+	for v in ${REPLACING_VERSIONS}; do
+		if ver_test "${v}" -lt 3.13.0_beta2; then
+			ewarn "Python 3.13.0b2 has changed its module ABI.  The .pyc files"
+			ewarn "installed previously are no longer valid and will be regenerated"
+			ewarn "(or ignored) on the next import.  This may cause sandbox failures"
+			ewarn "when installing some packages and checksum mismatches when removing"
+			ewarn "old versions.  To actively prevent this, rebuild all packages"
+			ewarn "installing Python 3.13 modules, e.g. using:"
+			ewarn
+			ewarn "  emerge -1v /usr/lib/python3.13/site-packages"
+		fi
+	done
+}