Сравнение zlib-ng-2.0.7 с zlib-ng-2.1.2-r1

/usr/portage/sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild 2023-10-09 14:52:35.564368503 +0300
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# Worth keeping an eye on 'develop' branch upstream for possible backports,
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# as they copied this practice from sys-libs/zlib upstream.
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inherit cmake
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inherit cmake-multilib
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DESCRIPTION="Fork of the zlib data compression library"
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HOMEPAGE="https://github.com/zlib-ng/zlib-ng"
......
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SLOT="0"
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KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86"
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CPU_USE=( cpu_flags_{x86_{avx2,sse2,ssse3,sse4a,pclmul},arm_{crc32,neon},ppc_vsx2} )
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IUSE="compat ${CPU_USE[@]} test"
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CPU_USE=(
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	x86_{avx2,avx512f,sse2,ssse3,sse4_2,pclmul}
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	arm_{crc32,neon}
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	ppc_{altivec,vsx2,vsx3}
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)
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IUSE="compat ${CPU_USE[@]/#/cpu_flags_} test"
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RESTRICT="!test? ( test )"
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RDEPEND="compat? ( !sys-libs/zlib )"
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src_configure() {
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PATCHES=(
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	"${FILESDIR}"/zlib-ng-2.1.2-cmake.patch
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)
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multilib_src_configure() {
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	local mycmakeargs=(
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		-DZLIB_COMPAT="$(usex compat)"
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		-DZLIB_ENABLE_TESTS="$(usex test)"
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		-DZLIB_COMPAT=$(usex compat)
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		-DZLIB_ENABLE_TESTS=$(usex test)
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		-DWITH_GTEST=$(usex test)
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		# Unaligned access is controversial and undefined behaviour
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		# Let's keep it off for now
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		# https://github.com/gentoo/gentoo/pull/17167
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		-DWITH_UNALIGNED="OFF"
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		-DWITH_UNALIGNED=OFF
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	)
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	# The intrinsics options are all defined conditionally, so we need
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	# to enable them on/off per-arch here for now.
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	# TODO: There's no s390x USE_EXPAND yet
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	if use amd64 || use x86 ; then
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		mycmakeargs+=(
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			-DWITH_AVX2=$(usex cpu_flags_x86_avx2)
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			-DWITH_AVX512=$(usex cpu_flags_x86_avx512f)
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			-DWITH_AVX512VNNI=OFF # TODO, see bug #908556
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			-DWITH_SSE2=$(usex cpu_flags_x86_sse2)
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			-DWITH_SSSE3=$(usex cpu_flags_x86_ssse3)
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			-DWITH_SSE4=$(usex cpu_flags_x86_sse4a)
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			-DWITH_SSE42=$(usex cpu_flags_x86_sse4_2)
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			-DWITH_PCLMULQDQ=$(usex cpu_flags_x86_pclmul)
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			-DWITH_VPCLMULQDQ=OFF # TODO, see bug #908556
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		)
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	fi
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......
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		# The POWER8 support is VSX which was introduced
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		# VSX2 was introduced with POWER8, so use that as a proxy for it
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		mycmakeargs+=(
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			-DWITH_ALTIVEC=$(usex cpu_flags_ppc_altivec)
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			-DWITH_POWER8=$(usex cpu_flags_ppc_vsx2)
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			-DWITH_POWER9=$(usex cpu_flags_ppc_vsx3)
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		)
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	fi
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	# TODO: There's no s390x USE_EXPAND yet
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	cmake_src_configure
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}
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src_install() {
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	cmake_src_install
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pkg_postinst() {
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	if use compat ; then
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		ewarn "zlib-ng is experimental and replacing the system zlib is dangerous"
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		ewarn "Please be careful!"
Спасибо!