Pushes after holdiday
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# Copyright 2019-2024 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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LLVM_COMPAT=( 18 )
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LLVM_OPTIONAL=1
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inherit check-reqs cmake edo llvm-r1 toolchain-funcs
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DESCRIPTION="A robust, optimal, and maintainable programming language"
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HOMEPAGE="https://ziglang.org/"
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if [[ ${PV} == 9999 ]]; then
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EGIT_REPO_URI="https://github.com/ziglang/zig.git"
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inherit git-r3
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else
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VERIFY_SIG_METHOD=minisig
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VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/minisig-keys/zig-software-foundation.pub
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inherit verify-sig
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SRC_URI="
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https://ziglang.org/download/${PV}/${P}.tar.xz
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verify-sig? ( https://ziglang.org/download/${PV}/${P}.tar.xz.minisig )
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"
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KEYWORDS="~amd64 ~arm ~arm64"
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BDEPEND="verify-sig? ( sec-keys/minisig-keys-zig-software-foundation )"
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fi
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# project itself: MIT
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# There are bunch of projects under "lib/" folder that are needed for cross-compilation.
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# Files that are unnecessary for cross-compilation are removed by upstream
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# and therefore their licenses (if any special) are not included.
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# lib/libunwind: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
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# lib/libcxxabi: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
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# lib/libcxx: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
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# lib/libc/wasi: || ( Apache-2.0-with-LLVM-exceptions Apache-2.0 MIT BSD-2 ) public-domain
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# lib/libc/musl: MIT BSD-2
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# lib/libc/mingw: ZPL public-domain BSD-2 ISC HPND
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# lib/libc/glibc: BSD HPND ISC inner-net LGPL-2.1+
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LICENSE="MIT Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT ) || ( Apache-2.0-with-LLVM-exceptions Apache-2.0 MIT BSD-2 ) public-domain BSD-2 ZPL ISC HPND BSD inner-net LGPL-2.1+"
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SLOT="$(ver_cut 1-2)"
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IUSE="doc +llvm"
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REQUIRED_USE="
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!llvm? ( !doc )
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llvm? ( ${LLVM_REQUIRED_USE} )
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"
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BUILD_DIR="${S}/build"
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# Zig requires zstd and zlib compression support in LLVM, if using LLVM backend.
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# (non-LLVM backends don't require these)
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# They are not required "on their own", so please don't add them here.
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# You can check https://github.com/ziglang/zig-bootstrap in future, to see
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# options that are passed to LLVM CMake building (excluding "static" ofc).
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DEPEND="
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llvm? (
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$(llvm_gen_dep '
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sys-devel/clang:${LLVM_SLOT}
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sys-devel/lld:${LLVM_SLOT}
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sys-devel/llvm:${LLVM_SLOT}[zstd]
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')
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)
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"
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RDEPEND="
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${DEPEND}
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"
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IDEPEND="app-eselect/eselect-zig"
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# see https://github.com/ziglang/zig/issues/3382
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# For now, Zig Build System doesn't support enviromental CFLAGS/LDFLAGS/etc.
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QA_FLAGS_IGNORED="usr/.*/zig/${PV}/bin/zig"
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RESTRICT="!llvm? ( test )"
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# Since commit https://github.com/ziglang/zig/commit/e7d28344fa3ee81d6ad7ca5ce1f83d50d8502118
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# Zig uses self-hosted compiler only
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CHECKREQS_MEMORY="4G"
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ctarget_to_zigtarget() {
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# Zig's Target Format: arch-os-abi
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local CTARGET="${CTARGET:-${CHOST}}"
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local ZIG_ARCH
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case "${CTARGET%%-*}" in
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i?86) ZIG_ARCH=x86;;
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sparcv9) ZIG_ARCH=sparc64;;
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*) ZIG_ARCH="${CTARGET%%-*}";; # Same as in CHOST
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esac
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local ZIG_OS
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case "${CTARGET}" in
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*linux*) ZIG_OS=linux;;
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*apple*) ZIG_OS=macos;;
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esac
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local ZIG_ABI
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case "${CTARGET##*-}" in
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gnu) ZIG_ABI=gnu;;
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solaris*) ZIG_OS=solaris ZIG_ABI=none;;
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darwin*) ZIG_ABI=none;;
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*) ZIG_ABI="${CTARGET##*-}";; # Same as in CHOST
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esac
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echo "${ZIG_ARCH}-${ZIG_OS}-${ZIG_ABI}"
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}
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get_zig_mcpu() {
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local ZIG_DEFAULT_MCPU=native
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tc-is-cross-compiler && ZIG_DEFAULT_MCPU=baseline
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echo "${ZIG_MCPU:-${ZIG_DEFAULT_MCPU}}"
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}
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get_zig_target() {
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local ZIG_DEFAULT_TARGET=native
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tc-is-cross-compiler && ZIG_DEFAULT_TARGET="$(ctarget_to_zigtarget)"
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echo "${ZIG_TARGET:-${ZIG_DEFAULT_TARGET}}"
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}
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pkg_setup() {
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# Useful for debugging and a little bit more deterministic.
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export ZIG_LOCAL_CACHE_DIR="${T}/zig-local-cache"
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export ZIG_GLOBAL_CACHE_DIR="${T}/zig-global-cache"
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export ZIG_SYS_INSTALL_DEST="${EPREFIX}/usr/$(get_libdir)/zig/${PV}"
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use llvm && llvm-r1_pkg_setup
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check-reqs_pkg_setup
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}
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src_configure() {
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if ! use llvm; then
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mkdir -p "${BUILD_DIR}/stage3" || die
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# Currently, Zig without LLVM extensions lacks most optimizations.
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export ZIG_BOOTSTRAP_STAGE3_FLAGS=(
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-Dtarget="$(get_zig_target)"
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-Dcpu="$(get_zig_mcpu)"
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-Doptimize=Debug
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-Dstd-docs=false
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-Dno-langref
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-Denable-llvm=false
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-Dforce-link-libc
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)
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return
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fi
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local mycmakeargs=(
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-DZIG_USE_CCACHE=OFF
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-DZIG_SHARED_LLVM=ON
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-DZIG_TARGET_TRIPLE="$(get_zig_target)"
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-DZIG_TARGET_MCPU="$(get_zig_mcpu)"
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-DZIG_USE_LLVM_CONFIG=ON
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-DCMAKE_PREFIX_PATH="$(get_llvm_prefix)"
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-DCMAKE_INSTALL_PREFIX="${ZIG_SYS_INSTALL_DEST}"
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)
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cmake_src_configure
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}
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src_compile() {
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# Remove "limit memory usage" flags, it's already verified by
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# CHECKREQS_MEMORY and causes unneccessary errors. Upstream set them
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# according to CI OOM failures, which are higher than during Gentoo build.
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sed -i -e '/\.max_rss = .*,/d' build.zig || die
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if ! use llvm; then
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$(tc-getCC) -o bootstrap bootstrap.c || die "Zig's bootstrap.c compilation failed"
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edob ./bootstrap
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edo ./zig2 build install --prefix "${BUILD_DIR}/stage3/" "${ZIG_BOOTSTRAP_STAGE3_FLAGS[@]}"
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return
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fi
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cmake_src_compile
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"${BUILD_DIR}/stage3/bin/zig" env || die "Zig compilation failed"
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if use doc; then
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cd "${BUILD_DIR}" || die
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edo ./stage3/bin/zig build std-docs --prefix "${S}/docgen/"
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edo ./stage3/bin/zig build langref --prefix "${S}/docgen/"
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fi
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}
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src_test() {
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cd "${BUILD_DIR}" || die
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local ZIG_TEST_ARGS="-Dstatic-llvm=false -Denable-llvm -Dskip-non-native \
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-Doptimize=ReleaseSafe -Dtarget=$(get_zig_target) -Dcpu=$(get_zig_mcpu)"
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local ZIG_TEST_STEPS=(
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test-fmt test-cases test-behavior test-c-import test-compiler-rt test-universal-libc test-compare-output
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test-standalone test-c-abi test-link test-stack-traces test-cli test-asm-link test-translate-c
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test-run-translated-c test-std
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)
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local step
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for step in "${ZIG_TEST_STEPS[@]}" ; do
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edob ./stage3/bin/zig build ${step} ${ZIG_TEST_ARGS}
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done
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}
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src_install() {
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local DOCS=( "README.md" "doc/build.zig.zon.md" )
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use doc && local HTML_DOCS=( "docgen/doc/langref.html" "docgen/doc/std" )
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if ! use llvm; then
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DESTDIR="${D}" edo ./zig2 build install --prefix "${ZIG_SYS_INSTALL_DEST}" "${ZIG_BOOTSTRAP_STAGE3_FLAGS[@]}"
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einstalldocs
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else
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cmake_src_install
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fi
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cd "${ED}/usr/$(get_libdir)/zig/${PV}/" || die
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mv lib/zig/ lib2/ || die
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rm -rf lib/ || die
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mv lib2/ lib/ || die
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dosym -r "/usr/$(get_libdir)/zig/${PV}/bin/zig" "/usr/bin/zig-${PV}"
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}
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pkg_postinst() {
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eselect zig update ifunset
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if ! use llvm; then
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elog "Currently, Zig built without LLVM support lacks some"
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elog "important features such as most optimizations, @cImport, etc."
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elog "They are listed under \"Building from Source without LLVM\""
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elog "section of the README file from \"/usr/share/doc/${PF}\" ."
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elog "It's recommended to use C backend directly with this stage2 build."
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fi
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}
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pkg_postrm() {
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eselect zig update ifunset
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}
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