diff options
Diffstat (limited to 'sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild')
-rw-r--r-- | sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild b/sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild new file mode 100644 index 000000000000..f96bd980dbf9 --- /dev/null +++ b/sys-libs/zlib-ng/zlib-ng-2.1.2-r1.ebuild @@ -0,0 +1,89 @@ +# Copyright 1999-2023 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 + +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="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86" + +CPU_USE=( + x86_{avx2,avx512f,sse2,ssse3,sse4_2,pclmul} + arm_{crc32,neon} + ppc_{altivec,vsx2,vsx3} +) +IUSE="compat ${CPU_USE[@]/#/cpu_flags_} test" + +RESTRICT="!test? ( test )" + +RDEPEND="compat? ( !sys-libs/zlib )" + +PATCHES=( + "${FILESDIR}"/zlib-ng-2.1.2-cmake.patch +) + +multilib_src_configure() { + local mycmakeargs=( + -DZLIB_COMPAT=$(usex compat) + -DZLIB_ENABLE_TESTS=$(usex test) + + # Unaligned access is controversial and undefined behaviour + # Let's keep it off for now + # https://github.com/gentoo/gentoo/pull/17167 + -DWITH_UNALIGNED=OFF + ) + + # 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=OFF # TODO, see bug #908556 + -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=OFF # TODO, see bug #908556 + ) + 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 + + cmake_src_configure +} + +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 +} |