commit: 81fb8b5d2197a4ed4e7605390a14115ca908b0f6 Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Tue Oct 28 10:19:11 2025 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Tue Oct 28 11:32:17 2025 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=81fb8b5d
sys-libs/zlib-ng: Make USE=compat build libzlib-ng as well Build both libzlib-ng and libzlib when USE=compat is enabled. This permits users to use zlib-ng as zlib provider without breaking packages that actually need zlib-ng. Closes: https://bugs.gentoo.org/965202 Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> Part-of: https://github.com/gentoo/gentoo/pull/44364 Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> sys-libs/zlib-ng/zlib-ng-2.2.5-r1.ebuild | 107 +++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) diff --git a/sys-libs/zlib-ng/zlib-ng-2.2.5-r1.ebuild b/sys-libs/zlib-ng/zlib-ng-2.2.5-r1.ebuild new file mode 100644 index 000000000000..95f22ee5f08d --- /dev/null +++ b/sys-libs/zlib-ng/zlib-ng-2.2.5-r1.ebuild @@ -0,0 +1,107 @@ +# Copyright 1999-2025 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +# Worth keeping an eye on 'develop' branch upstream for possible backports, +# as they copied this practice from sys-libs/zlib upstream. + +inherit cmake-multilib multibuild + +DESCRIPTION="Fork of the zlib data compression library" +HOMEPAGE="https://github.com/zlib-ng/zlib-ng"; +SRC_URI="https://github.com/${PN}/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz" + +LICENSE="ZLIB" +SLOT="0" +KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86" + +CPU_USE=( + x86_{avx2,avx512f,avx512_vnni,sse2,ssse3,sse4_2,pclmul,vpclmulqdq} + arm_{crc32,neon} + ppc_{altivec,vsx2,vsx3} +) +IUSE="compat ${CPU_USE[@]/#/cpu_flags_} test" + +RESTRICT="!test? ( test )" + +DEPEND=" + test? ( dev-cpp/gtest ) +" +RDEPEND=" + compat? ( !sys-libs/zlib ) +" + +run_both() { + local MULTIBUILD_VARIANTS=( base ) + use compat && MULTIBUILD_VARIANTS+=( compat ) + + multibuild_foreach_variant "${@}" +} + +my_src_configure() { + local compat=OFF + [[ ${MULTIBUILD_VARIANT} == compat ]] && compat=ON + local mycmakeargs=( + "${mycmakeargs[@]}" + -DZLIB_COMPAT="${compat}" + ) + + cmake_src_configure +} + +multilib_src_configure() { + local mycmakeargs=( + -DZLIB_ENABLE_TESTS=$(usex test) + -DWITH_GTEST=$(usex test) + ) + + # The intrinsics options are all defined conditionally, so we need + # to enable them on/off per-arch here for now. + # TODO: There's no s390x USE_EXPAND yet + if use amd64 || use x86 ; then + mycmakeargs+=( + -DWITH_AVX2=$(usex cpu_flags_x86_avx2) + -DWITH_AVX512=$(usex cpu_flags_x86_avx512f) + -DWITH_AVX512VNNI=$(usex cpu_flags_x86_avx512_vnni) + -DWITH_SSE2=$(usex cpu_flags_x86_sse2) + -DWITH_SSSE3=$(usex cpu_flags_x86_ssse3) + -DWITH_SSE42=$(usex cpu_flags_x86_sse4_2) + -DWITH_PCLMULQDQ=$(usex cpu_flags_x86_pclmul) + -DWITH_VPCLMULQDQ=$(usex cpu_flags_x86_vpclmulqdq) + ) + fi + + if use arm || use arm64 ; then + mycmakeargs+=( + -DWITH_ACLE=$(usex cpu_flags_arm_crc32) + -DWITH_NEON=$(usex cpu_flags_arm_neon) + ) + fi + + if use ppc || use ppc64 ; then + # The POWER8 support is VSX which was introduced + # VSX2 was introduced with POWER8, so use that as a proxy for it + mycmakeargs+=( + -DWITH_ALTIVEC=$(usex cpu_flags_ppc_altivec) + -DWITH_POWER8=$(usex cpu_flags_ppc_vsx2) + -DWITH_POWER9=$(usex cpu_flags_ppc_vsx3) + ) + fi + + run_both my_src_configure +} + +multilib_src_compile() { run_both cmake_src_compile; } +multilib_src_test() { run_both cmake_src_test; } +multilib_src_install() { run_both cmake_src_install; } + +pkg_postinst() { + if use compat ; then + ewarn "zlib-ng is experimental and replacing the system zlib is dangerous" + ewarn "Please be careful!" + ewarn + ewarn "The following link explains the guarantees (and what is NOT guaranteed):" + ewarn "https://github.com/zlib-ng/zlib-ng/blob/2.0.x/PORTING.md"; + fi +}
