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