dev-lang/zig: add 0.12.0

Signed-off-by: 0x5a4 <arthur@wienstroer.net>
Closes: https://github.com/gentoo/gentoo/pull/36517
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 174 insertions, 0 deletions

diff --git a/dev-lang/zig/Manifest b/dev-lang/zig/Manifest
index 0041c029d4ff..e4ec481d676a 100644
--- a/dev-lang/zig/Manifest
+++ b/dev-lang/zig/Manifest
@@ -1 +1,2 @@
 DIST zig-0.11.0.tar.xz 15275316 BLAKE2B 603e4995a36d214ba71cf05b719a04732c8927995c8207ab8fdd574dca3410cdc5ccc8f6aa9964807afc04a5cbce1a3910a6cde4cf12e585cdf7684833217eb2 SHA512 c19a8ae6d440a16dd5e77941fc77c036d1f284f1784376625e63b65f30b4acad62f9f4217bc818c401f88c2c33f8722f26fc467c3e23c29a89178c4b1882d1c4
+DIST zig-0.12.0.tar.xz 17099152 BLAKE2B 2a1248302868156c4ddcb154d075af29886a95a4c29de02ff0981e76a85f5d4109dd5c38f95c2c16f5c942bab7d120ae068c1e122ab8ad421c0213b7e996956c SHA512 0c3d9396fea4905245c7e32ce6bd9b4ff140f061cd8a957929e4c84cf105f5bbcbf2e7c030013ac649edb569e909f65d928b3e8a86f35c9076fb62e996feea14
diff --git a/dev-lang/zig/zig-0.12.0.ebuild b/dev-lang/zig/zig-0.12.0.ebuild
new file mode 100644
index 000000000000..73a78c57226a
--- /dev/null
+++ b/dev-lang/zig/zig-0.12.0.ebuild
@@ -0,0 +1,173 @@
+# Copyright 2019-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LLVM_MAX_SLOT=17
+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}/${P}.tar.xz"
+	KEYWORDS="~amd64 ~arm ~arm64"
+fi
+
+# project itself: MIT
+# There are bunch of projects under "lib/" folder that are needed for cross-compilation.
+# Files that are unnecessary for cross-compilation are removed by upstream
+# and therefore their licenses (if any special) are not included.
+# lib/libunwind: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
+# lib/libcxxabi: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
+# lib/libcxx: Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )
+# lib/libc/wasi: || ( Apache-2.0-with-LLVM-exceptions Apache-2.0 MIT BSD-2 ) public-domain
+# lib/libc/musl: MIT BSD-2
+# lib/libc/mingw: ZPL public-domain BSD-2 ISC HPND
+# lib/libc/glibc: BSD HPND ISC inner-net LGPL-2.1+
+LICENSE="MIT Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT ) || ( Apache-2.0-with-LLVM-exceptions Apache-2.0 MIT BSD-2 ) public-domain BSD-2 ZPL ISC HPND BSD inner-net LGPL-2.1+"
+SLOT="$(ver_cut 1-2)"
+IUSE="doc"
+
+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() {
+	# 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"
+
+	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
+
+	"${BUILD_DIR}/stage3/bin/zig" env || die "Zig compilation failed"
+
+	if use doc; then
+		cd "${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=$(get_zig_mcpu)"
+	local ZIG_TEST_STEPS=(
+		test-cases test-fmt test-behavior test-compiler-rt test-universal-libc test-compare-output
+		test-standalone test-c-abi test-link test-stack-traces test-cli test-asm-link test-translate-c
+		test-run-translated-c test-std
+	)
+
+	local step
+	for step in "${ZIG_TEST_STEPS[@]}" ; do
+		edob ./stage3/bin/zig build ${step} ${ZIG_TEST_ARGS}
+	done
+}
+
+src_install() {
+	use doc && local HTML_DOCS=( "docgen/doc/langref.html" "docgen/doc/std" )
+	cmake_src_install
+
+	cd "${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
+}