From 3804ac39becf1496d369969dd440951c3f34287e Mon Sep 17 00:00:00 2001
From: Gluzskiy Alexandr <sss@sss.chaoslab.ru>
Date: Fri, 22 Dec 2017 11:48:50 +0300
Subject: llvm-5-git from gentoo //they have removed 5x git ebuilds after
 release

---
 .../clang-runtime/clang-runtime-5.0.9999.ebuild    |  26 ++
 sys-devel/clang/clang-5.0.9999.ebuild              | 289 +++++++++++++++++++++
 sys-devel/lld/lld-5.0.9999.ebuild                  |  74 ++++++
 sys-devel/llvm-common/llvm-common-5.0.9999.ebuild  |  37 +++
 sys-devel/llvm/llvm-5.0.9999.ebuild                | 230 ++++++++++++++++
 5 files changed, 656 insertions(+)
 create mode 100644 sys-devel/clang-runtime/clang-runtime-5.0.9999.ebuild
 create mode 100644 sys-devel/clang/clang-5.0.9999.ebuild
 create mode 100644 sys-devel/lld/lld-5.0.9999.ebuild
 create mode 100644 sys-devel/llvm-common/llvm-common-5.0.9999.ebuild
 create mode 100644 sys-devel/llvm/llvm-5.0.9999.ebuild

(limited to 'sys-devel')

diff --git a/sys-devel/clang-runtime/clang-runtime-5.0.9999.ebuild b/sys-devel/clang-runtime/clang-runtime-5.0.9999.ebuild
new file mode 100644
index 0000000..f7f0042
--- /dev/null
+++ b/sys-devel/clang-runtime/clang-runtime-5.0.9999.ebuild
@@ -0,0 +1,26 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit multilib-build
+
+DESCRIPTION="Meta-ebuild for clang runtime libraries"
+HOMEPAGE="https://clang.llvm.org/"
+SRC_URI=""
+
+LICENSE="metapackage"
+# Note: keep it matching clang-9999 version
+SLOT="5.0.1"
+KEYWORDS=""
+IUSE="+compiler-rt libcxx openmp +sanitize"
+
+RDEPEND="
+	compiler-rt? (
+		~sys-libs/compiler-rt-${PV}:${SLOT}
+		sanitize? ( ~sys-libs/compiler-rt-sanitizers-${PV}:${SLOT} )
+	)
+	libcxx? ( >=sys-libs/libcxx-${PV}[${MULTILIB_USEDEP}] )
+	openmp? ( >=sys-libs/libomp-${PV}[${MULTILIB_USEDEP}] )"
+
+REQUIRED_USE="sanitize? ( compiler-rt )"
diff --git a/sys-devel/clang/clang-5.0.9999.ebuild b/sys-devel/clang/clang-5.0.9999.ebuild
new file mode 100644
index 0000000..458f535
--- /dev/null
+++ b/sys-devel/clang/clang-5.0.9999.ebuild
@@ -0,0 +1,289 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils eapi7-ver flag-o-matic git-r3 llvm \
+	multilib-minimal pax-utils python-single-r1 toolchain-funcs
+
+DESCRIPTION="C language family frontend for LLVM"
+HOMEPAGE="https://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/clang.git
+	https://github.com/llvm-mirror/clang.git"
+EGIT_BRANCH="release_50"
+
+# Keep in sync with sys-devel/llvm
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC Sparc SystemZ X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
+
+LICENSE="UoI-NCSA"
+SLOT="$(ver_cut 1)"
+KEYWORDS=""
+IUSE="debug default-compiler-rt default-libcxx doc +static-analyzer
+	test xml z3 kernel_FreeBSD ${ALL_LLVM_TARGETS[*]}"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	~sys-devel/llvm-${PV}:${SLOT}=[debug=,${LLVM_TARGET_USEDEPS// /,},${MULTILIB_USEDEP}]
+	static-analyzer? (
+		dev-lang/perl:*
+		z3? ( sci-mathematics/z3:0= )
+	)
+	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+	${PYTHON_DEPS}"
+# configparser-3.2 breaks the build (3.3 or none at all are fine)
+DEPEND="${RDEPEND}
+	doc? ( dev-python/sphinx )
+	xml? ( virtual/pkgconfig )
+	!!<dev-python/configparser-3.3.0.2
+	${PYTHON_DEPS}"
+RDEPEND="${RDEPEND}
+	!<sys-devel/llvm-4.0.0_rc:0
+	!sys-devel/clang:0"
+PDEPEND="
+	~sys-devel/clang-runtime-${PV}
+	default-compiler-rt? ( =sys-libs/compiler-rt-${PV%_*}* )
+	default-libcxx? ( sys-libs/libcxx )"
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}
+	|| ( ${ALL_LLVM_TARGETS[*]} )"
+
+# We need extra level of indirection for CLANG_RESOURCE_DIR
+S=${WORKDIR}/x/y/${P}
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+PATCHES=(
+	# fix finding compiler-rt libs
+	"${FILESDIR}"/5.0.0/0001-Driver-Use-arch-type-to-find-compiler-rt-libraries-o.patch
+)
+
+# Multilib notes:
+# 1. ABI_* flags control ABIs libclang* is built for only.
+# 2. clang is always capable of compiling code for all ABIs for enabled
+#    target. However, you will need appropriate crt* files (installed
+#    e.g. by sys-devel/gcc and sys-libs/glibc).
+# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
+#    in the current profile (i.e. alike supported by sys-devel/gcc).
+#
+# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
+# multilib clang* libraries (not runtime, not wrappers).
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${SLOT} llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	# create extra parent dir for CLANG_RESOURCE_DIR
+	mkdir -p x/y || die
+	cd x/y || die
+
+	git-r3_fetch "https://git.llvm.org/git/clang-tools-extra.git
+		https://github.com/llvm-mirror/clang-tools-extra.git"
+	if use test; then
+		# needed for patched gtest
+		git-r3_fetch "https://git.llvm.org/git/llvm.git
+			https://github.com/llvm-mirror/llvm.git"
+	fi
+	git-r3_fetch
+
+	git-r3_checkout https://llvm.org/git/clang-tools-extra.git \
+		"${S}"/tools/extra
+	if use test; then
+		git-r3_checkout https://llvm.org/git/llvm.git \
+			"${WORKDIR}"/llvm '' utils/{lit,llvm-lit,unittest}
+	fi
+	git-r3_checkout "${EGIT_REPO_URI}" "${S}"
+}
+
+multilib_src_configure() {
+	local llvm_version=$(llvm-config --version) || die
+	local clang_version=$(ver_cut 1-3 "${llvm_version}")
+
+	local mycmakeargs=(
+		# ensure that the correct llvm-config is used
+		-DLLVM_CONFIG="$(type -P "${CHOST}-llvm-config")"
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
+		# relative to bindir
+		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${clang_version}"
+
+		-DBUILD_SHARED_LIBS=ON
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+		-DLLVM_BUILD_TESTS=$(usex test)
+
+		# these are not propagated reliably, so redefine them
+		-DLLVM_ENABLE_EH=ON
+		-DLLVM_ENABLE_RTTI=ON
+
+		-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
+		# libgomp support fails to find headers without explicit -I
+		# furthermore, it provides only syntax checking
+		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
+
+		# override default stdlib and rtlib
+		-DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
+		-DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
+
+		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
+		-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
+		# z3 is not multilib-friendly
+		-DCLANG_ANALYZER_BUILD_Z3=$(multilib_native_usex z3)
+	)
+	use test && mycmakeargs+=(
+		-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+	)
+
+	if multilib_is_native_abi; then
+		mycmakeargs+=(
+			# normally copied from LLVM_INCLUDE_DOCS but the latter
+			# is lacking value in stand-alone builds
+			-DCLANG_INCLUDE_DOCS=$(usex doc)
+			-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=$(usex doc)
+		)
+		use doc && mycmakeargs+=(
+			-DLLVM_BUILD_DOCS=ON
+			-DLLVM_ENABLE_SPHINX=ON
+			-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+			-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
+			-DSPHINX_WARNINGS_AS_ERRORS=OFF
+		)
+		use z3 && mycmakeargs+=(
+			-DZ3_INCLUDE_DIR="${EPREFIX}/usr/include/z3"
+		)
+	else
+		mycmakeargs+=(
+			-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
+		)
+	fi
+
+	if tc-is-cross-compiler; then
+		[[ -x "/usr/bin/clang-tblgen" ]] \
+			|| die "/usr/bin/clang-tblgen not found or usable"
+		mycmakeargs+=(
+			-DCMAKE_CROSSCOMPILING=ON
+			-DCLANG_TABLEGEN=/usr/bin/clang-tblgen
+		)
+	fi
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake-utils_src_configure
+}
+
+multilib_src_compile() {
+	cmake-utils_src_compile
+
+	# provide a symlink for tests
+	if [[ ! -L ${WORKDIR}/lib/clang ]]; then
+		mkdir -p "${WORKDIR}"/lib || die
+		ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake-utils_src_make check-clang
+	# clang-tidy requires [static-analyzer] and tests are not split
+	# correctly, so they are all disabled when static-analyzer is off
+	if multilib_is_native_abi && use static-analyzer; then
+		cmake-utils_src_make check-clang-tools
+	fi
+}
+
+src_install() {
+	MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/clang/Config/config.h
+	)
+
+	multilib-minimal_src_install
+
+	# Move runtime headers to /usr/lib/clang, where they belong
+	mv "${ED%/}"/usr/include/clangrt "${ED%/}"/usr/lib/clang || die
+	# move (remaining) wrapped headers back
+	mv "${ED%/}"/usr/include "${ED%/}"/usr/lib/llvm/${SLOT}/include || die
+
+	# Apply CHOST and version suffix to clang tools
+	# note: we use two version components here (vs 3 in runtime path)
+	local llvm_version=$(llvm-config --version) || die
+	local clang_version=$(ver_cut 1-2 "${llvm_version}")
+	local clang_full_version=$(ver_cut 1-3 "${llvm_version}")
+	local clang_tools=( clang clang++ clang-cl clang-cpp )
+	local abi i
+
+	# cmake gives us:
+	# - clang-X.Y
+	# - clang -> clang-X.Y
+	# - clang++, clang-cl, clang-cpp -> clang
+	# we want to have:
+	# - clang-X.Y
+	# - clang++-X.Y, clang-cl-X.Y, clang-cpp-X.Y -> clang-X.Y
+	# - clang, clang++, clang-cl, clang-cpp -> clang*-X.Y
+	# also in CHOST variant
+	for i in "${clang_tools[@]:1}"; do
+		rm "${ED%/}/usr/lib/llvm/${SLOT}/bin/${i}" || die
+		dosym "clang-${clang_version}" "/usr/lib/llvm/${SLOT}/bin/${i}-${clang_version}"
+		dosym "${i}-${clang_version}" "/usr/lib/llvm/${SLOT}/bin/${i}"
+	done
+
+	# now create target symlinks for all supported ABIs
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		for i in "${clang_tools[@]}"; do
+			dosym "${i}-${clang_version}" \
+				"/usr/lib/llvm/${SLOT}/bin/${abi_chost}-${i}-${clang_version}"
+			dosym "${abi_chost}-${i}-${clang_version}" \
+				"/usr/lib/llvm/${SLOT}/bin/${abi_chost}-${i}"
+		done
+	done
+
+	# Remove unnecessary headers on FreeBSD, bug #417171
+	if use kernel_FreeBSD; then
+		rm "${ED}"usr/lib/clang/${clang_full_version}/include/{std,float,iso,limits,tgmath,varargs}*.h || die
+	fi
+}
+
+multilib_src_install() {
+	cmake-utils_src_install
+
+	# move headers to /usr/include for wrapping & ABI mismatch checks
+	# (also drop the version suffix from runtime headers)
+	rm -rf "${ED%/}"/usr/include || die
+	mv "${ED%/}"/usr/lib/llvm/${SLOT}/include "${ED%/}"/usr/include || die
+	mv "${ED%/}"/usr/lib/llvm/${SLOT}/$(get_libdir)/clang "${ED%/}"/usr/include/clangrt || die
+}
+
+multilib_src_install_all() {
+	python_fix_shebang "${ED}"
+	if use static-analyzer; then
+		python_optimize "${ED}"usr/lib/llvm/${SLOT}/share/scan-view
+	fi
+
+	docompress "/usr/lib/llvm/${SLOT}/share/man"
+	# match 'html' non-compression
+	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
+	# +x for some reason; TODO: investigate
+	use static-analyzer && fperms a-x "/usr/lib/llvm/${SLOT}/share/man/man1/scan-build.1"
+}
+
+pkg_postinst() {
+	if [[ ${ROOT} == / && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow update all
+	fi
+}
+
+pkg_postrm() {
+	if [[ ${ROOT} == / && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow clean all
+	fi
+}
diff --git a/sys-devel/lld/lld-5.0.9999.ebuild b/sys-devel/lld/lld-5.0.9999.ebuild
new file mode 100644
index 0000000..018ca40
--- /dev/null
+++ b/sys-devel/lld/lld-5.0.9999.ebuild
@@ -0,0 +1,74 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils git-r3 llvm python-any-r1
+
+DESCRIPTION="The LLVM linker (link editor)"
+HOMEPAGE="https://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/lld.git
+	https://github.com/llvm-mirror/lld.git"
+EGIT_BRANCH="release_50"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS=""
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="~sys-devel/llvm-${PV}"
+DEPEND="${RDEPEND}
+	test? ( $(python_gen_any_dep "~dev-python/lit-${PV}[\${PYTHON_USEDEP}]") )"
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	if use test; then
+		# needed for patched gtest
+		git-r3_fetch "https://git.llvm.org/git/llvm.git
+			https://github.com/llvm-mirror/llvm.git"
+	fi
+	git-r3_fetch
+
+	if use test; then
+		git-r3_checkout https://llvm.org/git/llvm.git \
+			"${WORKDIR}"/llvm '' utils/{lit,unittest}
+	fi
+	git-r3_checkout
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+
+		-DLLVM_INCLUDE_TESTS=$(usex test)
+	)
+	use test && mycmakeargs+=(
+		-DLLVM_BUILD_TESTS=ON
+		-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+		-DLIT_COMMAND="${EPREFIX}/usr/bin/lit"
+	)
+
+	cmake-utils_src_configure
+}
+
+src_test() {
+	cmake-utils_src_make check-lld
+}
diff --git a/sys-devel/llvm-common/llvm-common-5.0.9999.ebuild b/sys-devel/llvm-common/llvm-common-5.0.9999.ebuild
new file mode 100644
index 0000000..cc7ed2a
--- /dev/null
+++ b/sys-devel/llvm-common/llvm-common-5.0.9999.ebuild
@@ -0,0 +1,37 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit git-r3
+
+DESCRIPTION="Common files shared between multiple slots of LLVM"
+HOMEPAGE="https://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/llvm.git
+	https://github.com/llvm-mirror/llvm.git"
+EGIT_BRANCH="release_50"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS=""
+IUSE=""
+
+RDEPEND="!sys-devel/llvm:0"
+
+src_unpack() {
+	git-r3_fetch
+	git-r3_checkout '' '' '' utils/vim
+}
+
+src_configure() { :; }
+src_compile() { :; }
+src_test() { :; }
+
+src_install() {
+	insinto /usr/share/vim/vimfiles
+	doins -r utils/vim/*/
+	# some users may find it useful
+	newdoc utils/vim/README README.vim
+	dodoc utils/vim/vimrc
+}
diff --git a/sys-devel/llvm/llvm-5.0.9999.ebuild b/sys-devel/llvm/llvm-5.0.9999.ebuild
new file mode 100644
index 0000000..f41a0c9
--- /dev/null
+++ b/sys-devel/llvm/llvm-5.0.9999.ebuild
@@ -0,0 +1,230 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils eapi7-ver flag-o-matic git-r3 multilib-minimal \
+	pax-utils python-any-r1 toolchain-funcs
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="https://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/llvm.git
+	https://github.com/llvm-mirror/llvm.git"
+EGIT_BRANCH="release_50"
+
+# Keep in sync with CMakeLists.txt
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC Sparc SystemZ X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+
+# Additional licenses:
+# 1. OpenBSD regex: Henry Spencer's license ('rc' in Gentoo) + BSD.
+# 2. ARM backend: LLVM Software Grant by ARM.
+# 3. MD5 code: public-domain.
+# 4. Tests (not installed):
+#  a. gtest: BSD.
+#  b. YAML tests: MIT.
+
+LICENSE="UoI-NCSA rc BSD public-domain
+	llvm_targets_ARM? ( LLVM-Grant )"
+SLOT="$(ver_cut 1)"
+KEYWORDS=""
+IUSE="debug doc gold libedit +libffi ncurses test
+	kernel_Darwin ${ALL_LLVM_TARGETS[*]}"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	sys-libs/zlib:0=
+	gold? ( >=sys-devel/binutils-2.22:*[cxx] )
+	libedit? ( dev-libs/libedit:0=[${MULTILIB_USEDEP}] )
+	libffi? ( >=virtual/libffi-3.0.13-r1:0=[${MULTILIB_USEDEP}] )
+	ncurses? ( >=sys-libs/ncurses-5.9-r3:0=[${MULTILIB_USEDEP}] )"
+# configparser-3.2 breaks the build (3.3 or none at all are fine)
+DEPEND="${RDEPEND}
+	dev-lang/perl
+	|| ( >=sys-devel/gcc-3.0 >=sys-devel/llvm-3.5
+		( >=sys-freebsd/freebsd-lib-9.1-r10 sys-libs/libcxx )
+	)
+	|| ( >=sys-devel/binutils-2.18 >=sys-devel/binutils-apple-5.1 )
+	kernel_Darwin? ( <sys-libs/libcxx-$(ver_cut 1-3).9999 )
+	doc? ( dev-python/sphinx )
+	gold? ( sys-libs/binutils-libs )
+	libffi? ( virtual/pkgconfig )
+	!!<dev-python/configparser-3.3.0.2
+	${PYTHON_DEPS}"
+# There are no file collisions between these versions but having :0
+# installed means llvm-config there will take precedence.
+RDEPEND="${RDEPEND}
+	!sys-devel/llvm:0"
+PDEPEND="sys-devel/llvm-common
+	gold? ( sys-devel/llvmgold )"
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}
+	|| ( ${ALL_LLVM_TARGETS[*]} )"
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+src_prepare() {
+	# Fix llvm-config for shared linking and sane flags
+	# https://bugs.gentoo.org/show_bug.cgi?id=565358
+	eapply "${FILESDIR}"/9999/0007-llvm-config-Clean-up-exported-values-update-for-shar.patch
+
+	# Backport the fix for dlclose() causing option parser mess
+	# e.g. https://bugs.gentoo.org/617154
+	eapply "${FILESDIR}"/5.0.1/0001-cmake-Pass-Wl-z-nodelete-on-Linux-to-prevent-unloadi.patch
+
+	# disable use of SDK on OSX, bug #568758
+	sed -i -e 's/xcrun/false/' utils/lit/lit/util.py || die
+
+	# User patches + QA
+	cmake-utils_src_prepare
+}
+
+multilib_src_configure() {
+	local ffi_cflags ffi_ldflags
+	if use libffi; then
+		ffi_cflags=$($(tc-getPKG_CONFIG) --cflags-only-I libffi)
+		ffi_ldflags=$($(tc-getPKG_CONFIG) --libs-only-L libffi)
+	fi
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		# disable appending VCS revision to the version to improve
+		# direct cache hit ratio
+		-DLLVM_APPEND_VC_REV=OFF
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+		-DBUILD_SHARED_LIBS=ON
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+		-DLLVM_BUILD_TESTS=$(usex test)
+
+		-DLLVM_ENABLE_FFI=$(usex libffi)
+		-DLLVM_ENABLE_LIBEDIT=$(usex libedit)
+		-DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+		-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
+		-DLLVM_ENABLE_EH=ON
+		-DLLVM_ENABLE_RTTI=ON
+
+		-DWITH_POLLY=OFF # TODO
+
+		-DLLVM_HOST_TRIPLE="${CHOST}"
+
+		-DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
+		-DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
+
+		# disable OCaml bindings (now in dev-ml/llvm-ocaml)
+		-DOCAMLFIND=NO
+	)
+
+#	Note: go bindings have no CMake rules at the moment
+#	but let's kill the check in case they are introduced
+#	if ! multilib_is_native_abi || ! use go; then
+		mycmakeargs+=(
+			-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
+		)
+#	fi
+
+	if multilib_is_native_abi; then
+		mycmakeargs+=(
+			-DLLVM_BUILD_DOCS=$(usex doc)
+			-DLLVM_ENABLE_OCAMLDOC=OFF
+			-DLLVM_ENABLE_SPHINX=$(usex doc)
+			-DLLVM_ENABLE_DOXYGEN=OFF
+			-DLLVM_INSTALL_UTILS=ON
+		)
+		use doc && mycmakeargs+=(
+			-DLLVM_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+			-DSPHINX_WARNINGS_AS_ERRORS=OFF
+		)
+		use gold && mycmakeargs+=(
+			-DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
+		)
+	fi
+
+	if tc-is-cross-compiler; then
+		local tblgen="${EPREFIX}/usr/lib/llvm/${SLOT}/bin/llvm-tblgen"
+		[[ -x "${tblgen}" ]] \
+			|| die "${tblgen} not found or usable"
+		mycmakeargs+=(
+			-DCMAKE_CROSSCOMPILING=ON
+			-DLLVM_TABLEGEN="${tblgen}"
+		)
+	fi
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake-utils_src_configure
+}
+
+multilib_src_compile() {
+	cmake-utils_src_compile
+
+	pax-mark m "${BUILD_DIR}"/bin/llvm-rtdyld
+	pax-mark m "${BUILD_DIR}"/bin/lli
+	pax-mark m "${BUILD_DIR}"/bin/lli-child-target
+
+	if use test; then
+		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/Orc/OrcJITTests
+		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/MCJIT/MCJITTests
+		pax-mark m "${BUILD_DIR}"/unittests/Support/SupportTests
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake-utils_src_make check
+}
+
+src_install() {
+	local MULTILIB_CHOST_TOOLS=(
+		/usr/lib/llvm/${SLOT}/bin/llvm-config
+	)
+
+	local MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/llvm/Config/llvm-config.h
+	)
+
+	local LLVM_LDPATHS=()
+	multilib-minimal_src_install
+
+	# move wrapped headers back
+	mv "${ED%/}"/usr/include "${ED%/}"/usr/lib/llvm/${SLOT}/include || die
+}
+
+multilib_src_install() {
+	cmake-utils_src_install
+
+	# move headers to /usr/include for wrapping
+	rm -rf "${ED%/}"/usr/include || die
+	mv "${ED%/}"/usr/lib/llvm/${SLOT}/include "${ED%/}"/usr/include || die
+
+	# install fuzzer libraries for clang (cmake rules were added in 6)
+	# https://bugs.gentoo.org/636840
+	into "/usr/lib/llvm/${SLOT}"
+	dolib.a "$(get_libdir)"/libLLVMFuzzer*.a
+
+	LLVM_LDPATHS+=( "${EPREFIX}/usr/lib/llvm/${SLOT}/$(get_libdir)" )
+}
+
+multilib_src_install_all() {
+	local revord=$(( 9999 - ${SLOT} ))
+	cat <<-_EOF_ > "${T}/10llvm-${revord}" || die
+		PATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
+		# we need to duplicate it in ROOTPATH for Portage to respect...
+		ROOTPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
+		MANPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
+		LDPATH="$( IFS=:; echo "${LLVM_LDPATHS[*]}" )"
+_EOF_
+	doenvd "${T}/10llvm-${revord}"
+
+	docompress "/usr/lib/llvm/${SLOT}/share/man"
+}
-- 
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