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# Copyright 2019-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
LLVM_MAX_SLOT=16
inherit edo cmake llvm check-reqs toolchain-funcs
DESCRIPTION="A robust, optimal, and maintainable programming language"
HOMEPAGE="https://ziglang.org/"
if [[ ${PV} == 9999 ]]; then
EGIT_REPO_URI="https://github.com/ziglang/zig.git"
inherit git-r3
else
SRC_URI="https://ziglang.org/download/${PV}/${P}.tar.xz"
KEYWORDS="~amd64 ~arm ~arm64"
fi
LICENSE="MIT"
SLOT="$(ver_cut 1-2)"
IUSE="doc"
BUILD_DIR="${S}/build"
# Zig requires zstd and zlib compression support in LLVM, if using LLVM backend.
# (non-LLVM backends don't require these)
# They are not required "on their own", so please don't add them here.
# You can check https://github.com/ziglang/zig-bootstrap in future, to see
# options that are passed to LLVM CMake building (excluding "static" ofc).
DEPEND="
sys-devel/clang:${LLVM_MAX_SLOT}=
sys-devel/lld:${LLVM_MAX_SLOT}=
sys-devel/llvm:${LLVM_MAX_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"
# Since commit https://github.com/ziglang/zig/commit/e7d28344fa3ee81d6ad7ca5ce1f83d50d8502118
# Zig uses self-hosted compiler only
CHECKREQS_MEMORY="4G"
llvm_check_deps() {
has_version "sys-devel/clang:${LLVM_SLOT}"
}
ctarget_to_zigtarget() {
# Zig's Target Format: arch-os-abi
local CTARGET="${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() {
llvm_pkg_setup
check-reqs_pkg_setup
}
src_configure() {
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 ${LLVM_MAX_SLOT})"
-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/$(get_libdir)/zig/${PV}"
)
cmake_src_configure
}
src_compile() {
cmake_src_compile
if use doc; then
cd "${BUILD_DIR}" || die
edo ./zig2 run ../doc/docgen.zig -- --zig ./zig2 ../doc/langref.html.in "${S}/langref.html"
edo ./zig2 test ../lib/std/std.zig --zig-lib-dir ../lib -fno-emit-bin -femit-docs="${S}/std"
fi
}
src_test() {
cd "${BUILD_DIR}" || die
local ZIG_TEST_ARGS="-Dstatic-llvm=false -Denable-llvm -Dskip-non-native \
-Drelease -Dtarget=$(get_zig_target) -Dcpu=$(get_zig_mcpu)"
# TBF zig2 -> stage3/bin/zig when (if) https://github.com/ziglang/zig/pull/14255 will be merged
edo ./zig2 build test ${ZIG_TEST_ARGS}
}
src_install() {
use doc && local HTML_DOCS=( "langref.html" "std" )
cmake_src_install
cd "${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
}
pkg_postrm() {
eselect zig update ifunset
}
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