dev-lang/rust: version bump to 1.26.2

Also add support for WebAssembly target.

Fixes: https://bugs.gentoo.org/657110
Package-Manager: Portage-2.3.40, Repoman-2.3.9

3 files changed, 235 insertions, 0 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index db4a09c3a931..4522591cc259 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -7,3 +7,4 @@ DIST rust-1.25.0-x86_64-unknown-linux-gnu.tar.xz 111059260 BLAKE2B ae982976a735c
 DIST rustc-1.25.0-src.tar.gz 98639156 BLAKE2B 1408d5dd0611d4830de3b6b3d00e3fad4198a47599b639d0ac0bd05aaba401f743056a942e9df04a4d192c6b12e8cfe9a9cdf8cd26e48b72104ce9b423df049e SHA512 7d8886f4d5a621eb794e814deb60be681fa38cf086f87ffa14e5a3500c640b237c549a632de1331a0f1b71963de41f6d31a4df3866b7e597424002316fed81ce
 DIST rustc-1.26.0-src.tar.xz 54613664 BLAKE2B 798985e4060c28828066118f39fc296e52b3796ae02f3917912680154047eb6f91806b3d45f3a0e9afcef55d95cea3079debae12d2ddf2d9c46f992e12519094 SHA512 563b910ecf4b2a0d798a1201177f733333e64efad49e5aceec5adc66a8c6903df391c9afc0fdd8284348c08082e0c4de1e5cb68efe6797594de43ca93e4ad7a2
 DIST rustc-1.26.1-src.tar.xz 54604108 BLAKE2B 73e14d835812a42f32342732db448294c98e5cfdcb76b4a5d11085bef6302ae340abadba564c38319882b558df6dbe826ed73347229599f2f8718085a6cdbe10 SHA512 219b8d4dbc1aa087422d8227de8a6be10c0579fd9d1aae83af0a0305baf2c3a72222c6bdca8635c550b5b754d08a7a5b03b81b8b28019b23250327be1c7f8b00
+DIST rustc-1.26.2-src.tar.xz 54613640 BLAKE2B f361b7a0ed40ccb026750b4a70b99931f1abf52024e907b588e339902de2fbbd15501d237ac048d0537005834b0a2f49935f654a8c75d40ed95c65894f611481 SHA512 a598858ddce0e05d1d431be383400f44fc551eb2e368f37b01670c0b65ea5da6a7d5b2b68bb6ef806d2107cfa0d5007008442ad4d5ddb17d18d04e0ab31600b0
diff --git a/dev-lang/rust/metadata.xml b/dev-lang/rust/metadata.xml
index 78ed62129557..c03ce153031e 100644
--- a/dev-lang/rust/metadata.xml
+++ b/dev-lang/rust/metadata.xml
@@ -10,5 +10,7 @@
     alongside the compiler and stdlib</flag>
     <flag name="jemalloc">Use <pkg>dev-libs/jemalloc</pkg> as the
     standard memory allocator</flag>
+    <flag name="wasm">Build support for the wasm32-unknown-unknown
+    target</flag>
   </use>
 </pkgmetadata>
diff --git a/dev-lang/rust/rust-1.26.2.ebuild b/dev-lang/rust/rust-1.26.2.ebuild
new file mode 100644
index 000000000000..00f7c8354c45
--- /dev/null
+++ b/dev-lang/rust/rust-1.26.2.ebuild
@@ -0,0 +1,232 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 python3_{5,6} pypy )
+
+inherit multiprocessing multilib-build python-any-r1 versionator toolchain-funcs
+
+if [[ ${PV} = *beta* ]]; then
+	betaver=${PV//*beta}
+	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+	MY_P="rustc-beta"
+	SLOT="beta/${PV}"
+	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
+	KEYWORDS=""
+else
+	ABI_VER="$(get_version_component_range 1-2)"
+	SLOT="stable/${ABI_VER}"
+	MY_P="rustc-${PV}"
+	SRC="${MY_P}-src.tar.xz"
+	KEYWORDS="~amd64 ~arm64 ~x86"
+fi
+
+CHOST_amd64=x86_64-unknown-linux-gnu
+CHOST_x86=i686-unknown-linux-gnu
+CHOST_arm64=aarch64-unknown-linux-gnu
+
+RUST_STAGE0_VERSION="1.$(($(get_version_component_range 2) - 1)).0"
+RUST_STAGE0_amd64="rust-${RUST_STAGE0_VERSION}-${CHOST_amd64}"
+RUST_STAGE0_x86="rust-${RUST_STAGE0_VERSION}-${CHOST_x86}"
+RUST_STAGE0_arm64="rust-${RUST_STAGE0_VERSION}-${CHOST_arm64}"
+
+CARGO_DEPEND_VERSION="0.$(($(get_version_component_range 2) + 1)).0"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="http://www.rust-lang.org/"
+
+SRC_URI="https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz
+	amd64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_amd64}.tar.xz )
+	x86? ( https://static.rust-lang.org/dist/${RUST_STAGE0_x86}.tar.xz )
+	arm64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_arm64}.tar.xz )
+"
+
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC Sparc SystemZ X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="debug doc extended +jemalloc wasm ${ALL_LLVM_TARGETS[*]}"
+
+RDEPEND=">=app-eselect/eselect-rust-0.3_pre20150425
+		jemalloc? ( dev-libs/jemalloc )"
+DEPEND="${RDEPEND}
+	${PYTHON_DEPS}
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	dev-util/cmake
+"
+PDEPEND="!extended? ( >=dev-util/cargo-${CARGO_DEPEND_VERSION} )"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+	usex "$1" true false
+}
+
+src_prepare() {
+	local rust_stage0_root="${WORKDIR}"/rust-stage0
+
+	local rust_stage0_name="RUST_STAGE0_${ARCH}"
+	local rust_stage0="${!rust_stage0_name}"
+
+	"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig --destdir="${rust_stage0_root}" --prefix=/ || die
+
+	default
+}
+
+src_configure() {
+	local rust_target="" rust_targets="" rust_target_name arch_cflags
+
+	# Collect rust target names to compile standard libs for all ABIs.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target_name="CHOST_${v##*.}"
+		rust_targets="${rust_targets},\"${!rust_target_name}\""
+	done
+	if use wasm; then
+		rust_targets="${rust_targets},\"wasm32-unknown-unknown\""
+	fi
+	rust_targets="${rust_targets#,}"
+
+	local rust_stage0_root="${WORKDIR}"/rust-stage0
+
+	rust_target_name="CHOST_${ARCH}"
+	rust_target="${!rust_target_name}"
+
+	cat <<- EOF > "${S}"/config.toml
+		[llvm]
+		optimize = $(toml_usex !debug)
+		release-debuginfo = $(toml_usex debug)
+		assertions = $(toml_usex debug)
+		targets = "${LLVM_TARGETS// /;}"
+		[build]
+		build = "${rust_target}"
+		host = ["${rust_target}"]
+		target = [${rust_targets}]
+		cargo = "${rust_stage0_root}/bin/cargo"
+		rustc = "${rust_stage0_root}/bin/rustc"
+		docs = $(toml_usex doc)
+		submodules = false
+		python = "${EPYTHON}"
+		locked-deps = true
+		vendor = true
+		verbose = 2
+		extended = $(toml_usex extended)
+		[install]
+		prefix = "${EPREFIX}/usr"
+		libdir = "$(get_libdir)"
+		docdir = "share/doc/${P}"
+		mandir = "share/${P}/man"
+		[rust]
+		optimize = $(toml_usex !debug)
+		debuginfo = $(toml_usex debug)
+		debug-assertions = $(toml_usex debug)
+		use-jemalloc = $(toml_usex jemalloc)
+		default-linker = "$(tc-getCC)"
+		rpath = false
+		lld = $(toml_usex wasm)
+	EOF
+
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target=$(get_abi_CHOST ${v##*.})
+		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+		cat <<- EOF >> "${S}"/config.env
+			CFLAGS_${rust_target}=${arch_cflags}
+		EOF
+
+		cat <<- EOF >> "${S}"/config.toml
+			[target.${rust_target}]
+			cc = "$(tc-getBUILD_CC)"
+			cxx = "$(tc-getBUILD_CXX)"
+			linker = "$(tc-getCC)"
+			ar = "$(tc-getAR)"
+		EOF
+	done
+
+	if use wasm; then
+		cat <<- EOF >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "lld"
+		EOF
+	fi
+}
+
+src_compile() {
+	env $(cat "${S}"/config.env)\
+		./x.py build --verbose --config="${S}"/config.toml -j$(makeopts_jobs) || die
+}
+
+src_install() {
+	local rust_target abi_libdir
+
+	env DESTDIR="${D}" ./x.py install || die
+
+	mv "${D}/usr/bin/rustc" "${D}/usr/bin/rustc-${PV}" || die
+	mv "${D}/usr/bin/rustdoc" "${D}/usr/bin/rustdoc-${PV}" || die
+	mv "${D}/usr/bin/rust-gdb" "${D}/usr/bin/rust-gdb-${PV}" || die
+	mv "${D}/usr/bin/rust-lldb" "${D}/usr/bin/rust-lldb-${PV}" || die
+
+	# Copy shared library versions of standard libraries for all targets
+	# into the system's abi-dependent lib directories because the rust
+	# installer only does so for the native ABI.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		if [ ${v##*.} = ${DEFAULT_ABI} ]; then
+			continue
+		fi
+		abi_libdir=$(get_abi_LIBDIR ${v##*.})
+		rust_target=$(get_abi_CHOST ${v##*.})
+		mkdir -p "${D}/usr/${abi_libdir}"
+		cp "${D}/usr/$(get_libdir)/rustlib/${rust_target}/lib/*.so" \
+		   "${D}/usr/${abi_libdir}" || die
+	done
+
+	dodoc COPYRIGHT
+
+	# FIXME:
+	# Really not sure if that env is needed, specailly LDPATH
+	cat <<-EOF > "${T}"/50${P}
+		LDPATH="/usr/$(get_libdir)/${P}"
+		MANPATH="/usr/share/${P}/man"
+	EOF
+	doenvd "${T}"/50${P}
+
+	cat <<-EOF > "${T}/provider-${P}"
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-lldb
+	EOF
+	dodir /etc/env.d/rust
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+	eselect rust update --if-unset
+
+	elog "Rust installs a helper script for calling GDB and LLDB,"
+	elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
+
+	if has_version app-editors/emacs || has_version app-editors/emacs-vcs; then
+		elog "install app-emacs/rust-mode to get emacs support for rust."
+	fi
+
+	if has_version app-editors/gvim || has_version app-editors/vim; then
+		elog "install app-vim/rust-vim to get vim support for rust."
+	fi
+
+	if has_version 'app-shells/zsh'; then
+		elog "install app-shells/rust-zshcomp to get zsh completion for rust."
+	fi
+}
+
+pkg_postrm() {
+	eselect rust unset --if-invalid
+}