Gentoo Packages

# Copyright 2009-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{11..13} )
PYTHON_REQ_USE="xml(+)"

CHROMIUM_LANGS="af am ar as az be bg bn bs ca cs cy da de el en-GB es es-419 et eu fa fi fil
	fr fr-CA gl gu he hi hr hu hy id is it ja ka kk km kn ko ky lo lt lv mk ml mn mr ms my
	nb ne nl or pa pl pt-BR pt-PT ro ru si sk sl sq sr sr-Latn sv sw ta te th tr uk ur uz
	vi zh-CN zh-HK zh-TW zu"

inherit check-reqs chromium-2 desktop flag-o-matic llvm ninja-utils pax-utils
inherit python-any-r1 readme.gentoo-r1 toolchain-funcs xdg-utils

CHROMIUM_VERSION_WARNING="false"
CHROMIUM_VERSION="144.0.7559.60"
CHROMIUM_P="chromium-${CHROMIUM_VERSION}"
NODE_VERSION="24.11.1"
NODE_P="node-v${NODE_VERSION}"
UGC_PVR="144.0.7559.59-1"
UGC_PF="ungoogled-chromium-${UGC_PVR}"
UGC_WD="${WORKDIR}/${UGC_PF}"

# Use following environment variables to customise the build
# EXTRA_GN — pass extra options to gn
# NINJAOPTS="-k0 -j8" useful to populate ccache even if ebuild is still failing
# UGC_SKIP_PATCHES — space-separated list of patches to skip
# UGC_KEEP_BINARIES — space-separated list of binaries to keep
# UGC_SKIP_SUBSTITUTION — space-separated list of files to skip domain substitution

DESCRIPTION="Cross platform application development framework based on web technologies"
HOMEPAGE="https://electronjs.org/"
PPC64_HASH="c0eeb291f9b9f4d493a0bd8d775a1eda7c335b10"
PATCH_V="${CHROMIUM_VERSION%%\.*}"
SRC_URI="mirror+https://commondatastorage.googleapis.com/chromium-browser-official/${CHROMIUM_P}-lite.tar.xz
	mirror+https://nodejs.org/dist/v${NODE_VERSION}/node-v${NODE_VERSION}.tar.xz
	https://github.com/electron/electron/archive/v${PV}.tar.gz -> ${P}.tar.gz
	ppc64? (
		https://gitlab.raptorengineering.com/raptor-engineering-public/chromium/openpower-patches/-/archive/${PPC64_HASH}/openpower-patches-${PPC64_HASH}.tar.bz2 -> chromium-openpower-${PPC64_HASH:0:10}.tar.bz2
	)
"

LICENSE="BSD"
SLOT="$(ver_cut 1)/$(ver_cut 2-)"
KEYWORDS="amd64 ~arm64 ~ppc64 ~x86"
IUSE_SYSTEM_LIBS="abseil-cpp av1 brotli crc32c double-conversion ffmpeg +harfbuzz +icu jsoncpp +libusb libvpx +openh264 openjpeg +png re2 snappy woff2 +zstd"
IUSE="+X bluetooth +clang cups cpu_flags_arm_neon cpu_flags_ppc_vsx3 custom-cflags debug dev-dependencies gtk4 hangouts kerberos libcxx nvidia optimize-thinlto optimize-webui pax-kernel pgo +proprietary-codecs pulseaudio screencast selinux thinlto ungoogled vaapi wayland"
RESTRICT="
	!system-ffmpeg? ( proprietary-codecs? ( bindist ) )
	!system-openh264? ( bindist )
	mirror
	network-sandbox
"
REQUIRED_USE="
	thinlto? ( clang )
	optimize-thinlto? ( thinlto )
	pgo? ( clang )
	x86? ( !thinlto )
	vaapi? ( !system-av1 !system-libvpx )
"

# UGC_COMMIT_ID="9756f4778855da36c246852e669495f9e124bab3"

# declare -A CHROMIUM_COMMITS=(
# 	["069d424e41f42c6f4a4551334eafc7cfaed6e880"]="." #143+
# 	["bd9e1afdde061d4870cf69de39b04caac26960f2"]="." #143+
	# ["-da443d7bd3777a5dd0587ecff1fbad1722b106b5"]="."
	# ["e56b8ce0bafe9df578625be6973be95358b91785"]="third_party/perfetto"
# )

UGC_URL="https://github.com/ungoogled-software/ungoogled-chromium/archive/"

if [ -z "$UGC_COMMIT_ID" ]; then
	UGC_URL="${UGC_URL}${UGC_PVR}.tar.gz -> ${UGC_PF}.tar.gz"
	UGC_WD="${WORKDIR}/${UGC_PF}"
else
	UGC_URL="${UGC_URL}${UGC_COMMIT_ID}.tar.gz -> ungoogled-chromium-${UGC_COMMIT_ID}.tar.gz"
	UGC_WD="${WORKDIR}/ungoogled-chromium-${UGC_COMMIT_ID}"
fi

SRC_URI+="ungoogled? ( ${UGC_URL} )
"

if [ ! -z "${CHROMIUM_COMMITS[*]}" ]; then
	# for i in "${CHROMIUM_COMMITS[@]}"; do
	for i in "${!CHROMIUM_COMMITS[@]}"; do
		if [[ ${CHROMIUM_COMMITS[$i]} =~ webrtc ]]; then
		#TODO: is it safe to use this mirror?
		SRC_URI+="https://github.com/webrtc-mirror/webrtc/commit/${i/-}.patch?full_index=true -> webrtc-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ angle ]]; then
		SRC_URI+="https://github.com/google/angle/commit/${i/-}.patch?full_index=true -> angle-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ quiche ]]; then
		SRC_URI+="https://github.com/google/quiche/commit/${i/-}.patch?full_index=true -> quiche-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ dawn ]]; then
		SRC_URI+="https://github.com/google/dawn/commit/${i/-}.patch?full_index=true -> dawn-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ perfetto ]]; then
		SRC_URI+="https://github.com/google/perfetto/commit/${i/-}.patch?full_index=true -> perfetto-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ ink ]]; then
		SRC_URI+="https://github.com/google/ink/commit/${i/-}.patch?full_index=true -> ink-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ vulkan-utility-libraries ]]; then
		SRC_URI+="https://github.com/KhronosGroup/Vulkan-Utility-Libraries/commit/${i/-}.patch?full_index=true -> vulkan-utility-libraries-${i/-}.patch
		"
		elif [[ ${CHROMIUM_COMMITS[$i]} =~ ruy ]]; then
		SRC_URI+="https://github.com/google/ruy/commit/${i/-}.patch?full_index=true -> ruy-${i/-}.patch
		"
		else
		SRC_URI+="https://github.com/chromium/chromium/commit/${i/-}.patch?full_index=true -> chromium-${i/-}.patch
		"
		fi
	done
fi

for i in ${IUSE_SYSTEM_LIBS}; do
	[[ $i =~ ^(\+)?(.*)$ ]]
	IUSE+=" ${BASH_REMATCH[1]}system-${BASH_REMATCH[2]}"
done

COMMON_X_DEPEND="
	x11-libs/libXcomposite:=
	x11-libs/libXcursor:=
	x11-libs/libXdamage:=
	x11-libs/libXfixes:=
	>=x11-libs/libXi-1.6.0:=
	x11-libs/libXrandr:=
	x11-libs/libXrender:=
	x11-libs/libXtst:=
	x11-libs/libxshmfence:=
"

COMMON_SNAPSHOT_DEPEND="
	system-icu? ( >=dev-libs/icu-73.0:= )
	system-abseil-cpp? ( >=dev-cpp/abseil-cpp-20250512.0 )
	system-brotli? ( >=app-arch/brotli-9999 )
	system-crc32c? ( dev-libs/crc32c )
	system-double-conversion? ( dev-libs/double-conversion )
	system-woff2? ( media-libs/woff2 )
	system-snappy? ( app-arch/snappy )
	system-jsoncpp? ( dev-libs/jsoncpp )
	system-openjpeg? ( media-libs/openjpeg:2= )
	system-re2? ( >=dev-libs/re2-0.2019.08.01:= )
	system-libvpx? ( >=media-libs/libvpx-1.13.0:=[postproc] )
	system-libusb? ( virtual/libusb:1 )
	x11-libs/libnotify
	>=dev-libs/libxml2-2.12.4:=[icu]
	dev-libs/nspr:=
	>=dev-libs/nss-3.26:=
	dev-libs/libxslt:=
	media-libs/fontconfig:=
	>=media-libs/freetype-2.11.0-r1:=
	system-harfbuzz? ( >=media-libs/harfbuzz-3:0=[icu(-)] )
	media-libs/libjpeg-turbo:=
	system-png? ( media-libs/libpng:= )
	system-zstd? ( >=app-arch/zstd-1.5.5:= )
	>=media-libs/libwebp-0.4.0:=
	media-libs/mesa:=[gbm(+)]
	>=media-libs/openh264-1.6.0:=
	system-av1? (
		>=media-libs/dav1d-1.0.0:=
		>=media-libs/libaom-3.7.0:=
	)
	sys-libs/zlib:=
	>=media-libs/libavif-1.2.0:=
	dev-libs/glib:2
	>=media-libs/alsa-lib-1.0.19:=
	pulseaudio? (
		|| (
			media-libs/libpulse
			>=media-sound/apulse-0.1.9
		)
	)
	sys-apps/pciutils:=
	kerberos? ( virtual/krb5 )
	vaapi? ( >=media-libs/libva-2.7:=[X?,wayland?] )
	X? (
	x11-base/xorg-proto:=
	x11-libs/libX11:=
	x11-libs/libxcb:=
	x11-libs/libXext:=
	)
	x11-libs/libxkbcommon:=
	wayland? (
		dev-libs/libffi:=
		dev-libs/wayland:=
		screencast? (
			media-video/pipewire:=
			|| (
				sys-apps/xdg-desktop-portal-gnome
				sys-apps/xdg-desktop-portal-gtk
				kde-plasma/xdg-desktop-portal-kde
				gui-libs/xdg-desktop-portal-lxqt
				gui-libs/xdg-desktop-portal-wlr
			)
		)
	)
"

COMMON_DEPEND="
	app-eselect/eselect-electron
	${COMMON_SNAPSHOT_DEPEND}
	app-arch/bzip2:=
	dev-libs/expat:=
	system-ffmpeg? (
		>=media-video/ffmpeg-6.1:=
		|| (
			media-video/ffmpeg[-samba]
			>=net-fs/samba-4.5.10-r1[-debug(-)]
		)
		>=media-libs/opus-1.3.1:=
	)
	net-misc/curl[ssl]
	sys-apps/dbus:=
	media-libs/flac:=
	sys-libs/zlib:=[minizip]
	X? ( ${COMMON_X_DEPEND} )
	>=app-accessibility/at-spi2-core-2.46.0:2
	media-libs/mesa:=[X?,wayland?]
	cups? ( >=net-print/cups-1.3.11:= )
	virtual/udev
	x11-libs/cairo:=
	x11-libs/gdk-pixbuf:2
	x11-libs/pango:=
"

RDEPEND="${COMMON_DEPEND}
	|| (
		x11-libs/gtk+:3[X?,wayland?]
		gui-libs/gtk:4[X?,wayland?]
	)
	virtual/ttf-fonts
	selinux? ( sec-policy/selinux-chromium )
"

DEPEND="${COMMON_DEPEND}
	gtk4? ( gui-libs/gtk:4[X?,wayland?] )
	!gtk4? ( x11-libs/gtk+:3[X?,wayland?] )
"

BDEPEND="
	${COMMON_SNAPSHOT_DEPEND}
	${PYTHON_DEPS}
	$(python_gen_any_dep '
		dev-python/setuptools[${PYTHON_USEDEP}]
	')
	>=app-arch/gzip-1.7
	>=dev-build/gn-0.2114
	app-alternatives/ninja
	dev-lang/perl
	>=dev-util/gperf-3.2
	dev-vcs/git
	>=net-libs/nodejs-7.6.0[inspector,npm]
	>=sys-devel/bison-2.4.3
	sys-devel/flex
	virtual/pkgconfig
	clang? (
		pgo? ( >=llvm-core/clang-22.0.0_pre20260106 >=llvm-core/lld-22.0.0_pre20260106	)
		!pgo? ( llvm-core/clang llvm-core/lld )
	)
	sys-apps/yarn
"

S="${WORKDIR}/${CHROMIUM_P}"

python_check_deps() {
	python_has_version "dev-python/setuptools[${PYTHON_USEDEP}]"
}

pre_build_checks() {
	# Check build requirements: bugs #471810, #541816, #914220
	# We're going to start doing maths here on the size of an unpacked source tarball,
	# this should make updates easier as chromium continues to balloon in size.
	local BASE_DISK=18
	local EXTRA_DISK=1
	local CHECKREQS_MEMORY="4G"
	tc-is-cross-compiler && EXTRA_DISK=2
	if use thinlto || use pgo; then
		CHECKREQS_MEMORY="9G"
		tc-is-cross-compiler && EXTRA_DISK=4
		use pgo && EXTRA_DISK=8
	fi
	if is-flagq '-g?(gdb)?([1-9])'; then
		if use custom-cflags; then
			EXTRA_DISK=13
		fi
		CHECKREQS_MEMORY="16G"
	fi
	CHECKREQS_DISK_BUILD="$((BASE_DISK + EXTRA_DISK))G"
	check-reqs_${EBUILD_PHASE_FUNC}
}

pkg_pretend() {
	if use libcxx; then
		ewarn
		ewarn "Building with libcxx, please be aware that system-*"
		ewarn "and some other c++ dependencies need to be compiled"
		ewarn "with the same c++ library as ungoogled-chromium itself"
		ewarn "dev-libs/jsoncpp is most problematic, see #58 #49 #119 for details"
		ewarn "Simplest solution would be to disable corresponding system-* flags"
		ewarn
	fi
	pre_build_checks

	if [ "$CHROMIUM_VERSION_WARNING" = "true" ]; then
		ewarn
		ewarn "Chromium ${CHROMIUM_VERSION} will be used instead of the required one"
		ewarn
	fi

	ewarn
	ewarn "network-sandbox is disabled because of yarn"
	ewarn "Please do not file a bug unless you have a better solution"
	ewarn
}

pkg_setup() {
	pre_build_checks

	chromium_suid_sandbox_check_kernel_config
}

src_unpack() {
	# Here be dragons!
	local XCLD="--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/instrumented_libs  \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/llvm \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/llvm-build \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/node/linux \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/rust-src \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/rust-toolchain \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/build/linux/debian_bullseye_i386-sysroot \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/build/linux/debian_bullseye_amd64-sysroot \
		--exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/angle/third_party/VK-GL-CTS \
	"

	if ! use libcxx ; then
		XCLD+=" --exclude=chromium-${CHROMIUM_VERSION/_*}/third_party/libc++"
	fi

	if ! use pgo ; then
		XCLD+=" --exclude=chromium-${CHROMIUM_VERSION/_*}/chrome/build/pgo_profiles"
	fi

	einfo "Unpacking chromium-${CHROMIUM_VERSION/_*}.tar.xz to ${WORKDIR}"
	tar ${XCLD} -xf "${DISTDIR}/chromium-${CHROMIUM_VERSION/_*}-lite.tar.xz" -C "${WORKDIR}" || die

	unpack "${P}.tar.gz"
	unpack "node-v${NODE_VERSION}.tar.xz"

	use ungoogled && unpack ${UGC_URL#*->}
	#unpack chromium-patches-${PATCH_V}.tar.bz2
	# Warned you!

	if use ppc64; then
		unpack chromium-openpower-${PPC64_HASH:0:10}.tar.bz2
	fi
}

remove_compiler_builtins() {
	# We can't use the bundled compiler builtins with the system toolchain
	# We used to `grep` then `sed`, but it was indirect. Combining the two into a single
	# `awk` command is more efficient and lets us document the logic more clearly.

	local pattern='    configs += [ "//build/config/clang:compiler_builtins" ]'
	local target='build/config/compiler/BUILD.gn'

	# Create a secure temporary file to store the output.
	local tmpfile
	tmpfile=$(mktemp) || die "Failed to create temporary file."

	if awk -v pat="${pattern}" '
	BEGIN {
		match_found = 0
	}

	# If the delete countdown is active, decrement it and skip to the next line.
	d > 0 { d--; next }

	# If the current line matches the pattern...
	$0 == pat {
		match_found = 1   # ...set our flag to true.
		d = 2             # Set delete counter for this line and the next two.
		prev = ""         # Clear the buffered previous line so it is not printed.
		next
	}

	# For any other line, print the buffered previous line.
	NR > 1 { print prev }

	# Buffer the current line to be printed on the next cycle.
	{ prev = $0 }

	END {
		# Print the last line if it was not part of a deleted block.
		if (d == 0) { print prev }

		# If the pattern was never found, exit with a failure code.
		if (match_found == 0) {
		exit 1
		}
	}
	' "${target}" > "${tmpfile}"; then
		# AWK SUCCEEDED (exit code 0): The pattern was found and edited.
		# This is to avoid gawk's `-i inplace` option which users complain about.
		mv "${tmpfile}" "${target}"
	else
		# AWK FAILED (exit code 1): The pattern was not found.
		rm -f "${tmpfile}"
		die "Awk patch failed: Pattern not found in ${target}."
	fi
}

src_prepare() {
	# Calling this here supports resumption via FEATURES=keepwork
	python_setup

	#cp -f ${WORKDIR}/chromium-patches-${PATCH_V}/*-compiler.patch "${T}/compiler.patch"
	cp -f ${FILESDIR}/chromium-144-compiler.patch "${T}/compiler.patch"
	if ! use custom-cflags; then #See #25 #92
		sed -i '/default_stack_frames/Q' "${T}/compiler.patch" || die
	fi

	# einfo "Disabling dugite"
	# sed -i '/dugite/d' "${WORKDIR}/${P}/package.json" || die

	# pushd "${WORKDIR}/${NODE_P}" > /dev/null || die
	# eapply "${FILESDIR}/openssl_fips-r2.patch" || die
	# popd > /dev/null || die

	pushd "${WORKDIR}/${P}" > /dev/null || die
		# sed -i '/web_tests/Q' "patches/chromium/cherry-pick-1eb1e18ad41d.patch" || die

		sed -i 's/std::vector<const/std::vector</' patches/chromium/feat_add_data_parameter_to_processsingleton.patch || die
		sed -i 's/std::vector<const/std::vector</' shell/browser/api/electron_api_app.cc || die
		sed -i 's/std::vector<const/std::vector</' shell/browser/api/electron_api_app.h || die
		# sed -i 's/std::variant/absl::variant/' shell/browser/electron_browser_context.h || die
		# sed -i 's/std::get_if/absl::get_if/' shell/browser/electron_browser_context.cc || die
		sed -i 's/constexpr CodeAndShiftedChar/CodeAndShiftedChar/' shell/common/keyboard_util.cc || die

		# sed -i 's/NODE_DIR = os.path.join/NODE_DIR = os.path.abspath(os.path.join/' script/generate-config-gypi.py || die
		# sed -i "s/'electron_node')/'electron_node'))/" script/generate-config-gypi.py || die

		# sed -i 's/Path(__file__).resolve()/Path(__file__).absolute()/' script/node/generate_node_headers.py || die
		# sed -i 's/os.path.join(node_root_dir, file)/os.path.abspath(os.path.join(node_root_dir, file))/' script/node/generate_node_headers.py || die

		# #? Funny, huh?
		# sed -i "s/module.exports.getElectronVersion = () => {/module.exports.getElectronVersion = () => {return '${PV}';/" \
		# 	script/lib/get-version.js || die
		# mkdir -p .git/packed-refs .git/HEAD;
		# sed -i '/git\/packed-refs/d' BUILD.gn || die
		# sed -i '/git\/HEAD/d' BUILD.gn || die

		grep "'--openssl-no-asm'" script/generate-config-gypi.py > /dev/null || die
		NODE_CONFIG_ARGS="'--without-bundled-v8', '--shared-openssl', '--shared-zlib', '--without-npm', '--shared-cares', '--shared-http-parser', '--shared-nghttp2'"
		use system-icu && NODE_CONFIG_ARGS+=", '--with-intl=system-icu'"
		sed -i "s/'--openssl-no-asm'/$NODE_CONFIG_ARGS/" script/generate-config-gypi.py || die

		# See #166
		sed -i '/proprietary_codecs/d' build/args/all.gn || die
		sed -i '/ffmpeg_branding/d' build/args/all.gn || die
		sed -i '/rtc_use_h264/d' build/args/release.gn || die

		use bluetooth || eapply "${FILESDIR}/disable-bluez-electron-r4.patch"

		if use ungoogled; then
			# sed -i '/SecurityStateTabHelper::GetMaliciousContentStatus/Q' "patches/chromium/ssl_security_state_tab_helper.patch" || die
			sed -i "s/https/trk:173:https/" "patches/chromium/feat_add_support_for_overriding_the_base_spellchecker_download_url.patch" || die
			sed -i "s/AfterWriteCheckResult)> callback) override;/AfterWriteCheckResult)> callback);/" \
				"shell/browser/file_system_access/file_system_access_permission_context.h" || die
			sed -i '/@@ -38/,+7d' "patches/chromium/refactor_expose_file_system_access_blocklist.patch" || die
			sed -i '/test\/BUILD.gn/Q' "patches/chromium/build_do_not_depend_on_packed_resource_integrity.patch" || die
		fi
		eapply "${FILESDIR}/misc-fixes.patch" || die
	popd > /dev/null || die

	local PATCHES=(
		"${T}/compiler.patch"
		"${FILESDIR}/chromium-cross-compile.patch"
		"${FILESDIR}/chromium-109-system-openh264.patch"
		"${FILESDIR}/chromium-109-system-zlib.patch"
		"${FILESDIR}/chromium-135-oauth2-client-switches.patch"
		"${FILESDIR}/chromium-138-nodejs-version-check.patch"
		"${FILESDIR}/chromium-144-revert-libpng-testiness.patch"
		"${FILESDIR}/chromium-125-cloud_authenticator.patch"
		"${FILESDIR}/chromium-144-qrcode.patch"
		"${FILESDIR}/perfetto-system-zlib.patch"
		"${FILESDIR}/chromium-127-cargo_crate.patch"
		"${FILESDIR}/chromium-128-cfi-split-lto-unit.patch"
		"${FILESDIR}/restore-x86-r3.patch"
		"${FILESDIR}/chromium-133-webrtc-fixes.patch"
		"${FILESDIR}/chromium-141-fix-for-kde.patch"
		"${FILESDIR}/chromium-134-stdatomic.patch"
		"${FILESDIR}/font-gc-asan.patch"
		"${FILESDIR}/chromium-141-crabby.patch"
		"${FILESDIR}/chromium-144-no-rust.patch"
		"${FILESDIR}/chromium-144-fontations.patch"
		"${FILESDIR}/chromium-144-gcc.patch"
	)

	# https://issues.chromium.org/issues/442698344
	# Unreleased fontconfig changed magic numbers and google have rolled to this version
	if has_version "<=media-libs/fontconfig-2.17.1"; then
		PATCHES+=( "${FILESDIR}/chromium-142-work-with-old-fontconfig.patch" )
	fi

	#shopt -s globstar nullglob
	## 130: moved the PPC64 patches into the chromium-patches repo
	#local patch
	#for patch in "${WORKDIR}/chromium-patches-${PATCH_V}"/**/*.patch; do
	#		if [[ ${patch} == *"ppc64le"* ]]; then
	#				use ppc64 && PATCHES+=( "${patch}" )
	#		else
	#				PATCHES+=( "${patch}" )
	#		fi
	#done
	#shopt -u globstar nullglob

	remove_compiler_builtins

	# Strictly speaking this doesn't need to be gated (no bundled toolchain for ppc64); it keeps the logic together
	if use ppc64; then
		local patchset_dir="${WORKDIR}/openpower-patches-${PPC64_HASH}/patches"
		# patch causes build errors on 4K page systems (https://bugs.gentoo.org/show_bug.cgi?id=940304)
		local page_size_patch="ppc64le/third_party/use-sysconf-page-size-on-ppc64.patch"
		local isa_3_patch="ppc64le/core/baseline-isa-3-0.patch"
		# Apply the OpenPOWER patches (check for page size and isa 3.0)
		openpower_patches=( $(grep -E "^ppc64le|^upstream" "${patchset_dir}/series" | grep -v "${page_size_patch}" |
			grep -v "${isa_3_patch}" || die) )
		for patch in "${openpower_patches[@]}"; do
			PATCHES+=( "${patchset_dir}/${patch}" )
		done
		if [[ $(getconf PAGESIZE) == 65536 ]]; then
			PATCHES+=( "${patchset_dir}/${page_size_patch}" )
		fi
		# We use vsx3 as a proxy for 'want isa3.0' (POWER9)
		if use cpu_flags_ppc_vsx3 ; then
			PATCHES+=( "${patchset_dir}/${isa_3_patch}" )
		fi
	fi

	ewarn
	ewarn "Fontations Rust font stack is disabled"
	ewarn "Using media-libs/libavif instead of CrabbyAvif"
	ewarn

	if [ ! -z "${CHROMIUM_COMMITS[*]}" ]; then
		# for i in "${CHROMIUM_COMMITS[@]}"; do
		for i in "${!CHROMIUM_COMMITS[@]}"; do
			if [[ ${CHROMIUM_COMMITS[$i]} =~ webrtc ]]; then
				patch_prefix="webrtc"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ angle ]]; then
				patch_prefix="angle"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ quiche ]]; then
				patch_prefix="quiche"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ dawn ]]; then
				patch_prefix="dawn"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ perfetto ]]; then
				patch_prefix="perfetto"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ ink ]]; then
				patch_prefix="ink"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ vulkan-utility-libraries ]]; then
				patch_prefix="vulkan-utility-libraries"
			elif [[ ${CHROMIUM_COMMITS[$i]} =~ ruy ]]; then
				patch_prefix="ruy"
			else
				patch_prefix="chromium"
			fi
			pushd "${CHROMIUM_COMMITS[$i]}" > /dev/null || die
			if [[ $i = -*  ]]; then
				einfo "Reverting ${patch_prefix}-${i/-}.patch"
				git apply -R --exclude="*unittest.cc" --exclude="DEPS" \
					-p1 < "${DISTDIR}/${patch_prefix}-${i/-}.patch" || die
			else
				einfo "Applying ${patch_prefix}-${i/-}.patch"
				git apply --exclude="*unittest.cc" --exclude="DEPS" \
					-p1 < "${DISTDIR}/${patch_prefix}-${i/-}.patch" || die
			fi
			popd > /dev/null || die
		done
	fi

	if ! use bluetooth ; then
		PATCHES+=(
			"${FILESDIR}/disable-bluez-r6.patch"
		)
	fi

	if ! use libcxx ; then
		PATCHES+=(
			"${FILESDIR}/fix-wayland-oncecallback-copy.patch"
		)
	fi

	if use system-ffmpeg; then
		PATCHES+=(
			"${FILESDIR}/chromium-141-opus-mp3.patch"
			"${FILESDIR}/chromium-135-hevc.patch"
		)
		sed -i "\!AVFMT_FLAG_NOH264PARSE!d" media/filters/ffmpeg_glue.cc || die
		ewarn "You need to expose \"av_stream_get_first_dts\" in ffmpeg via user patch"
	fi

	if use system-av1; then
		PATCHES+=(
			"${FILESDIR}/chromium-system-av1.patch"
		)
	fi

	if ! use system-png; then
		PATCHES+=(
			"${FILESDIR}/chromium-144-revert-revert-libpng-testiness.patch"
		)
	fi

	if use system-libvpx; then
		PATCHES+=(
			"${FILESDIR}/chromium-system-libvpx.patch"
		)
	fi

	if use system-openjpeg ; then
		PATCHES+=(
			"${FILESDIR}/chromium-system-openjpeg-r4.patch"
		)
	fi

	default

	mv "${WORKDIR}/${P}" electron || die
	mv "${WORKDIR}/${NODE_P}" third_party/electron_node || die

	# if [[ ${LLVM_SLOT} == "19" ]]; then
	# 	# Upstream now hard depend on a feature that was added in LLVM 20.1, but we don't want to stabilise that yet.
	# 	# Do the temp file shuffle in case someone is using something other than `gawk`
	# 	{
	# 		awk '/config\("clang_warning_suppression"\) \{/	{ print $0 " }"; sub(/clang/, "xclang"); print; next }
	# 			{ print }' build/config/compiler/BUILD.gn > "${T}/build.gn" && \
	# 			mv "${T}/build.gn" build/config/compiler/BUILD.gn
	# 	} || die "Unable to disable warning suppression"
	# fi

	# Not included in -lite tarballs, but we should check for it anyway.
	if [[ -f third_party/node/linux/node-linux-x64/bin/node ]]; then
		rm third_party/node/linux/node-linux-x64/bin/node || die
	else
		mkdir -p third_party/node/linux/node-linux-x64/bin || die
	fi
	ln -s "${EPREFIX}"/usr/bin/node third_party/node/linux/node-linux-x64/bin/node || die

	# adjust python interpreter version
	sed -i -e "s|\(^script_executable = \).*|\1\"${EPYTHON}\"|g" .gn || die

	cp "${FILESDIR}/libusb.gn" build/linux/unbundle || die
	sed -i '/^REPLACEMENTS.*$/{s++REPLACEMENTS = {"libusb":"third_party/libusb/BUILD.gn",+;h};${x;/./{x;q0};x;q1}' \
		build/linux/unbundle/replace_gn_files.py || die
	sed -i '/^.*deps.*third_party\/jsoncpp.*$/{s++public_deps \+= [ "//third_party/jsoncpp" ]+;h};${x;/./{x;q0};x;q1}' \
		third_party/webrtc/rtc_base/BUILD.gn || die

	cp -f "${FILESDIR}/rust_static_library.gni" build/rust || die
	cp -f "${FILESDIR}/json_parser.cc" base/json || die
	cp -f "${FILESDIR}/json_parser.h" base/json || die
	cp -f "${FILESDIR}/avif_image_decoder.cc" third_party/blink/renderer/platform/image-decoders/avif || die
	cp -f "${FILESDIR}/avif_image_decoder.h" third_party/blink/renderer/platform/image-decoders/avif || die
	cp -f "${FILESDIR}/png_image_decoder.cc" third_party/blink/renderer/platform/image-decoders/png || die
	cp -f "${FILESDIR}/png_image_decoder.h" third_party/blink/renderer/platform/image-decoders/png || die
	cp -f "${FILESDIR}/font_format_check.cc" third_party/blink/renderer/platform/fonts/opentype || die
	cp -f "${FILESDIR}/font_format_check.h" third_party/blink/renderer/platform/fonts/opentype || die


	if use system-abseil-cpp; then
		eapply "${FILESDIR}/chromium-144-system-abseil.patch"
		#TODO: not sure about this one :-/ vvvvvvvvvvvvvvvv Any better solution?
		eapply "${FILESDIR}/chromium-141-system-abseil-cord.patch"
		#TODO: not sure about this one :-/ ^^^^^^^^^^^^^^^^ Any better solution?
		cp -f /usr/include/absl/base/options.h third_party/abseil-cpp/absl/base/options.h
		sed -i '/^#define ABSL_OPTION_USE_STD_ORDERING.*$/{s++#define ABSL_OPTION_USE_STD_ORDERING 1+;h};${x;/./{x;q0};x;q1}' \
			third_party/abseil-cpp/absl/base/options.h || die
	fi


	if use ungoogled; then
		# From here we adapt ungoogled-chromium's patches to our needs
		local ugc_pruning_list="${UGC_WD}/pruning.list"
		local ugc_patch_series="${UGC_WD}/patches/series"
		local ugc_substitution_list="${UGC_WD}/domain_substitution.list"

		#! conflicting patches
		sed -i '/print_view_manager_base.cc/,+37d' \
			"${UGC_WD}/patches/core/ungoogled-chromium/fix-building-without-safebrowsing.patch" || die
		sed -i '/print_view_manager_base.h/,+10d' \
			"${UGC_WD}/patches/core/ungoogled-chromium/fix-building-without-safebrowsing.patch" || die
		sed -i '/chrome_file_system_access_permission_context.cc/,+166d' \
			"${UGC_WD}/patches/core/ungoogled-chromium/fix-building-without-safebrowsing.patch" || die

		UGC_SKIP_SUBSTITUTION="${UGC_SKIP_SUBSTITUTION} flag-metadata.json histograms.xml \
			chrome_file_system_access_permission_context.cc layer_tree_view.cc http_response_headers.cc"

		local ugc_unneeded=(
			# GN bootstrap
			extra/debian/gn/parallel
		)

		#* Temporary fix
		sed -i "\!ios/!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/icu/!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/libjpeg_turbo/!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/snappy/!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/closure_compiler/!d" "${ugc_pruning_list}" || die

		#* Didn't unpack them at the first place
		sed -i "\!build/linux/debian_bullseye_i386-sysroot!d" "${ugc_pruning_list}" || die
		sed -i "\!build/linux/debian_bullseye_amd64-sysroot!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/llvm-build!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/node/linux!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/rust-src!d" "${ugc_pruning_list}" || die
		sed -i "\!third_party/rust-toolchain!d" "${ugc_pruning_list}" || die
		if ! use libcxx ; then
			sed -i "\!third_party/libc!d" "${ugc_pruning_list}" || die
		fi
		sed -i "s|debug('files|error('files|" \
			"${UGC_WD}/utils/prune_binaries.py" || die
		sed -i "\!third_party/node/linux!d" \
			"${UGC_WD}/utils/prune_binaries.py" || die

		local ugc_p ugc_dir
		for p in "${ugc_unneeded[@]}"; do
			einfo "Removing ${p}.patch"
			sed -i "\!${p}.patch!d" "${ugc_patch_series}" || die
		done

		if [ ! -z "${UGC_SKIP_PATCHES}" ]; then
		for p in ${UGC_SKIP_PATCHES}; do
			ewarn "Removing ${p}"
			sed -i "\!${p}!d" "${ugc_patch_series}" || die
		done
		fi

		if [ ! -z "${UGC_KEEP_BINARIES}" ]; then
		for p in ${UGC_KEEP_BINARIES}; do
			ewarn "Keeping binary ${p}"
			sed -i "\!${p}!d" "${ugc_pruning_list}" || die
		done
		fi

		if [ ! -z "${UGC_SKIP_SUBSTITUTION}" ]; then
		for p in ${UGC_SKIP_SUBSTITUTION}; do
			ewarn "No substitutions in ${p}"
			sed -i "\!${p}!d" "${ugc_substitution_list}" || die
		done
		fi

		ebegin "Pruning binaries"
		"${UGC_WD}/utils/prune_binaries.py" -q . "${UGC_WD}/pruning.list"
		eend $? || die

		ebegin "Applying ungoogled-chromium patches"
		"${UGC_WD}/utils/patches.py" -q apply . "${UGC_WD}/patches"
		eend $? || die

		ebegin "Applying domain substitution"
		"${UGC_WD}/utils/domain_substitution.py" -q apply -r "${UGC_WD}/domain_regex.list" -f "${UGC_WD}/domain_substitution.list" .
		eend $? || die

		sed -i '/packed_resources_integrity_header/d' chrome/test/BUILD.gn || die
	else
		eapply "${FILESDIR}/more-locales.patch"
		eapply "${FILESDIR}/misc-fixes-ung-r1.patch"
	fi

	if use system-zstd; then
		sed -i '/zstd:headers/{s++zstd:zstd_headers+;h};${x;/./{x;q0};x;q1}' \
			electron/patches/node/build_add_gn_build_files.patch || die
	fi

	declare -A patches=(
		["electron/patches/chromium"]="."
		["electron/patches/boringssl"]="third_party/boringssl/src"
		["electron/patches/devtools_frontend"]="third_party/devtools-frontend/src"
		["electron/patches/ffmpeg"]="third_party/ffmpeg"
		["electron/patches/v8"]="v8"
		["electron/patches/node"]="third_party/electron_node"
		["electron/patches/perfetto"]="third_party/perfetto"
		["electron/patches/webrtc"]="third_party/webrtc"
		["electron/patches/sqlite"]="third_party/sqlite/src"
	)
	for patch_folder in "${!patches[@]}";
	do
		readarray -t topatch < "${patch_folder}/.patches"
		einfo "- ${patch_folder}"
		for i in "${topatch[@]}"; do
			# if	[ "$i" = "feat_add_uv_loop_interrupt_on_io_change_option_to_uv_loop_configure.patch" ]; then
			# 	einfo "Partially applying ${i}"
			# 	pushd "${patches[$patch_folder]}" > /dev/null || die
			# 	git apply -p1 --exclude="test" --exclude="loop.rst" < "${FILESDIR}/$i" || die
			# 	popd > /dev/null || die
			# 	continue;
			# fi
			# if [ "$i" = "cherry-pick-5902d1aa722a.patch" ] ||
			# if	[ "$i" = "regexp_add_a_currently_failing_cctest_for_irregexp_reentrancy.patch" ]; then
			# 	einfo "Skipping ${i}: No files to patch."
			# 	continue;
			# fi
			if [ "$i" = "cherry-pick-dd8e2822e507.patch" ] ||
				[ "$i" = "revert_enable_crel_for_arm32_targets.patch" ]; then
				ewarn "Skipping ${i} due to... reasons..."
				continue;
			fi
			if [ "$i" = "sysroot.patch" ] ||
				[ "$i" = "build_disable_print_content_analysis.patch" ]; then
				if use ungoogled; then
					ewarn "Skipping ${i} due to ungoogled."
					continue;
				fi
			fi
			# if [ "$i" = "fix_preserve_proper_method_names_as-is_in_error_stack.patch" ]; then
			# 	einfo "Git binary patch: ${i}"
			# 	pushd "${patches[$patch_folder]}" > /dev/null || die
			# 	git apply -p1 < "${S}/${patch_folder}/$i" || die
			# 	popd > /dev/null || die
			# 	continue;
			# fi
			# pushd "${patches[$patch_folder]}" > /dev/null || die
			# eapply "${S}/${patch_folder}/$i" || die
			# popd > /dev/null || die
			pushd "${patches[$patch_folder]}" > /dev/null || die
			einfo "$i"
			# ebegin "$i"
			git apply --exclude="*/web_tests/*" --exclude="*/test-list/*" \
				--exclude="*/uv/test/*" --exclude="*.rst" \
				--exclude="*/cctest/*" --exclude="*/unittests/*" \
				--exclude="*/test/data/*" --exclude="*/.eslintrc*" \
				--exclude="*/__config_site" \
				-p1 < "${S}/${patch_folder}/$i" || die
			# eend $? || die
			popd > /dev/null || die
		done
	done

	# Use the system copy of hwdata's usb.ids; upstream is woefully out of date (2015!)
	sed 's|//third_party/usb_ids/usb.ids|/usr/share/hwdata/usb.ids|g' \
		-i services/device/public/cpp/usb/BUILD.gn || die "Failed to set system usb.ids path"

	local keeplibs=(
		base/third_party/cityhash
	)
	use system-double-conversion || keeplibs+=(
		base/third_party/double_conversion
	)
	keeplibs+=(
		base/third_party/icu
		base/third_party/nspr
		base/third_party/superfasthash
		base/third_party/symbolize
		base/third_party/xdg_user_dirs
		buildtools/third_party/libc++
		buildtools/third_party/libc++abi
		net/third_party/mozilla_security_manager
		net/third_party/quic
		net/third_party/uri_template
		third_party/abseil-cpp/absl/base
	)
	use system-abseil-cpp || keeplibs+=(
		third_party/abseil-cpp
	)
	keeplibs+=(
		third_party/angle
		third_party/angle/src/common/third_party/xxhash
		third_party/angle/src/third_party/ceval
	)
	use nvidia || keeplibs+=(
		third_party/angle/src/third_party/libXNVCtrl
	)
	keeplibs+=(
		third_party/angle/src/third_party/volk
		third_party/anonymous_tokens
		third_party/apple_apsl
		third_party/axe-core
		third_party/bidimapper
		third_party/blink
		third_party/boringssl
		third_party/boringssl/src/third_party/fiat
		third_party/breakpad
		third_party/breakpad/breakpad/src/third_party/curl
	)
	use system-brotli || keeplibs+=(
		third_party/brotli
	)
	keeplibs+=(
		third_party/catapult
		third_party/catapult/common/py_vulcanize/third_party/rcssmin
		third_party/catapult/common/py_vulcanize/third_party/rjsmin
		third_party/catapult/third_party/beautifulsoup4-4.9.3
		third_party/catapult/third_party/html5lib-1.1
		third_party/catapult/third_party/polymer
		third_party/catapult/third_party/six
		third_party/catapult/tracing/third_party/d3
		third_party/catapult/tracing/third_party/gl-matrix
		third_party/catapult/tracing/third_party/jpeg-js
		third_party/catapult/tracing/third_party/jszip
		third_party/catapult/tracing/third_party/mannwhitneyu
		third_party/catapult/tracing/third_party/oboe
		third_party/catapult/tracing/third_party/pako
		third_party/ced
		third_party/cld_3
		third_party/closure_compiler
	)
	use libcxx && keeplibs+=(
		third_party/compiler-rt
	)
	keeplibs+=(
		third_party/content_analysis_sdk
		third_party/cpuinfo
		third_party/crabbyavif
		third_party/crashpad
		third_party/crashpad/crashpad/third_party/lss
		third_party/crashpad/crashpad/third_party/zlib
	)
	use system-crc32c || keeplibs+=(
		third_party/crc32c
	)
	keeplibs+=(
		third_party/cros_system_api
		third_party/d3
		third_party/dawn
		third_party/dawn/third_party/gn/webgpu-cts
		third_party/dawn/third_party/khronos
		third_party/dawn/third_party/webgpu-headers
		third_party/depot_tools
		third_party/devscripts
		third_party/devtools-frontend
		third_party/devtools-frontend/src/front_end/third_party/acorn
		third_party/devtools-frontend/src/front_end/third_party/additional_readme_paths.json
		third_party/devtools-frontend/src/front_end/third_party/axe-core
		third_party/devtools-frontend/src/front_end/third_party/chromium
		third_party/devtools-frontend/src/front_end/third_party/codemirror
		third_party/devtools-frontend/src/front_end/third_party/csp_evaluator
		third_party/devtools-frontend/src/front_end/third_party/diff
		third_party/devtools-frontend/src/front_end/third_party/i18n
		third_party/devtools-frontend/src/front_end/third_party/intl-messageformat
		third_party/devtools-frontend/src/front_end/third_party/json5
		third_party/devtools-frontend/src/front_end/third_party/legacy-javascript
		third_party/devtools-frontend/src/front_end/third_party/lighthouse
		third_party/devtools-frontend/src/front_end/third_party/lit
		third_party/devtools-frontend/src/front_end/third_party/marked
		third_party/devtools-frontend/src/front_end/third_party/puppeteer
		third_party/devtools-frontend/src/front_end/third_party/puppeteer/package/lib/esm/third_party/mitt
		third_party/devtools-frontend/src/front_end/third_party/puppeteer/package/lib/esm/third_party/parsel-js
		third_party/devtools-frontend/src/front_end/third_party/puppeteer/package/lib/esm/third_party/rxjs
		third_party/devtools-frontend/src/front_end/third_party/source-map-scopes-codec
		third_party/devtools-frontend/src/front_end/third_party/third-party-web
		third_party/devtools-frontend/src/front_end/third_party/vscode.web-custom-data
		third_party/devtools-frontend/src/front_end/third_party/wasmparser
		third_party/devtools-frontend/src/front_end/third_party/web-vitals
		third_party/devtools-frontend/src/third_party
		third_party/dom_distiller_js
		third_party/dragonbox
		third_party/eigen3
		third_party/electron_node
		third_party/emoji-segmenter
		third_party/farmhash
		third_party/fast_float
		third_party/fdlibm
		third_party/federated_compute/chromium/fcp/confidentialcompute
		third_party/federated_compute/src/fcp/base
		third_party/federated_compute/src/fcp/confidentialcompute
		third_party/federated_compute/src/fcp/protos/confidentialcompute
		third_party/federated_compute/src/fcp/protos/federatedcompute
		third_party/fft2d
		third_party/flatbuffers
		third_party/fp16
		third_party/freetype
		third_party/fusejs
		third_party/fxdiv
		third_party/gemmlowp
		third_party/google_input_tools
		third_party/google_input_tools/third_party/closure_library
		third_party/google_input_tools/third_party/closure_library/third_party/closure
		third_party/googletest
		third_party/highway
		third_party/hunspell
		third_party/ink_stroke_modeler/src/ink_stroke_modeler
		third_party/ink_stroke_modeler/src/ink_stroke_modeler/internal
		third_party/ink/src/ink/brush
		third_party/ink/src/ink/color
		third_party/ink/src/ink/geometry
		third_party/ink/src/ink/rendering
		third_party/ink/src/ink/rendering/skia/common_internal
		third_party/ink/src/ink/rendering/skia/native
		third_party/ink/src/ink/rendering/skia/native/internal
		third_party/ink/src/ink/strokes
		third_party/ink/src/ink/types
		third_party/inspector_protocol
		third_party/ipcz
		third_party/jinja2
	)
	use system-jsoncpp || keeplibs+=(
		third_party/jsoncpp
	)
	keeplibs+=(
		third_party/khronos
		third_party/lens_server_proto
		third_party/leveldatabase
		third_party/libaddressinput
		third_party/libdrm
		third_party/libgav1
		third_party/libjingle
		third_party/libpfm4
		third_party/libphonenumber
		third_party/libsecret
		third_party/libsrtp
		third_party/libsync
		third_party/libtess2/libtess2
		third_party/libtess2/src/Include
		third_party/libtess2/src/Source
		third_party/liburlpattern
	)
	use system-libusb || keeplibs+=(
		third_party/libusb
	)
	keeplibs+=(
		third_party/libva_protected_content
	)
	use system-libvpx || keeplibs+=(
		third_party/libvpx
		third_party/libvpx/source/libvpx/third_party/x86inc
	)
	keeplibs+=(
		third_party/libwebm
		third_party/libx11
		third_party/libxcb-keysyms
		third_party/libxml/chromium
		third_party/libyuv
		third_party/libzip
		third_party/lit
		third_party/lottie
		third_party/lss
		third_party/lzma_sdk
		third_party/mako
		third_party/markupsafe
		third_party/material_color_utilities
		third_party/metrics_proto
		third_party/minigbm
		third_party/ml_dtypes
		third_party/modp_b64
		third_party/nasm
		third_party/nearby
		third_party/neon_2_sse
		third_party/node
		third_party/oak/chromium/proto
		third_party/oak/chromium/proto/attestation
		third_party/omnibox_proto
		third_party/one_euro_filter
		third_party/openscreen
		third_party/openscreen/src/third_party/
		third_party/openscreen/src/third_party/tinycbor/src/src
		third_party/ots
		third_party/pdfium
		third_party/pdfium/third_party/agg23
		third_party/pdfium/third_party/bigint
		third_party/pdfium/third_party/freetype
		third_party/pdfium/third_party/lcms
	)
	use system-openjpeg || keeplibs+=(
		third_party/pdfium/third_party/libopenjpeg
	)
	keeplibs+=(
		third_party/pdfium/third_party/libtiff
		third_party/perfetto
		third_party/perfetto/protos/third_party/chromium
		third_party/perfetto/protos/third_party/pprof
		third_party/perfetto/protos/third_party/simpleperf
		third_party/pffft
		third_party/ply
		third_party/polymer
		third_party/private_membership
		third_party/private-join-and-compute
		third_party/protobuf
		third_party/protobuf/third_party/utf8_range
		third_party/pthreadpool
		third_party/puffin
		third_party/pyjson5
		third_party/pyyaml
		third_party/rapidhash
		third_party/readability
		third_party/rnnoise
		third_party/ruy
		third_party/s2cellid
		third_party/search_engines_data
		third_party/securemessage
		third_party/selenium-atoms
		third_party/sentencepiece
		third_party/sentencepiece/src/third_party/darts_clone
		third_party/shell-encryption
		third_party/simdutf
		third_party/simplejson
		third_party/six
		third_party/skia
		third_party/skia/include/third_party/vulkan
		third_party/skia/third_party/vulkan
		third_party/smhasher
	)
	use system-snappy || keeplibs+=(
		third_party/snappy
	)
	keeplibs+=(
		third_party/spirv-headers
		third_party/spirv-tools
		third_party/sqlite
		third_party/swiftshader
		third_party/swiftshader/third_party/astc-encoder
		third_party/swiftshader/third_party/llvm-subzero
		third_party/swiftshader/third_party/marl
		third_party/swiftshader/third_party/SPIRV-Headers/include/spirv
		third_party/swiftshader/third_party/SPIRV-Tools
		third_party/swiftshader/third_party/subzero
		third_party/tensorflow_models
		third_party/tensorflow-text
		third_party/tflite
		third_party/tflite/src/third_party/fft2d
		third_party/tflite/src/third_party/xla/third_party/tsl
		third_party/tflite/src/third_party/xla/xla/tsl/framework
		third_party/tflite/src/third_party/xla/xla/tsl/lib/random
		third_party/tflite/src/third_party/xla/xla/tsl/platform
		third_party/tflite/src/third_party/xla/xla/tsl/protobuf
		third_party/tflite/src/third_party/xla/xla/tsl/util
		third_party/ukey2
	)
	use ungoogled && keeplibs+=(
		third_party/ungoogled-chromium
	)
	keeplibs+=(
		third_party/utf
		third_party/vulkan
		third_party/wayland
		third_party/webdriver
		third_party/webgpu-cts
		third_party/webrtc
		third_party/webrtc/common_audio/third_party/ooura
		third_party/webrtc/common_audio/third_party/spl_sqrt_floor
		third_party/webrtc/modules/third_party/fft
		third_party/webrtc/modules/third_party/g711
		third_party/webrtc/modules/third_party/g722
		third_party/webrtc/rtc_base/third_party/sigslot
		third_party/widevine
	)
	use system-woff2 || keeplibs+=(
		third_party/woff2
	)
	keeplibs+=(
		third_party/wuffs
		third_party/x11proto
		third_party/xcbproto
		third_party/xnnpack
		third_party/zlib/google
		third_party/zxcvbn-cpp
		url/third_party/mozilla
		v8/third_party/glibc
		v8/third_party/inspector_protocol
		v8/third_party/rapidhash-v8
		v8/third_party/siphash
		v8/third_party/utf8-decoder
		v8/third_party/v8
		v8/third_party/valgrind

		# gyp -> gn leftovers
		third_party/speech-dispatcher
		third_party/usb_ids
		third_party/xdg-utils
	)
	if ! use system-harfbuzz; then
		keeplibs+=( third_party/harfbuzz-ng )
	fi

	if ! use system-ffmpeg; then
		keeplibs+=( third_party/ffmpeg third_party/opus )
	fi

	if ! use system-icu; then
		keeplibs+=( third_party/icu )
	fi

	if ! use system-png; then
		keeplibs+=( third_party/libpng )
	fi

	if ! use system-zstd; then
		keeplibs+=( third_party/zstd )
	fi

	if ! use system-av1; then
		keeplibs+=(
			third_party/dav1d
			third_party/libaom
			third_party/libaom/source/libaom/third_party/fastfeat
			third_party/libaom/source/libaom/third_party/SVT-AV1
			third_party/libaom/source/libaom/third_party/vector
			third_party/libaom/source/libaom/third_party/x86inc
		)
	fi

	if use libcxx; then
		keeplibs+=(
				third_party/libc++
				third_party/llvm-libc
		)
	fi

	if ! use system-openh264; then
		keeplibs+=( third_party/openh264 )
	fi

	if ! use system-re2; then
		keeplibs+=( third_party/re2 )
	fi

	# Arch-specific
	if use arm64 || use ppc64 ; then
		keeplibs+=( third_party/swiftshader/third_party/llvm-10.0 )
	fi
	# we need to generate ppc64 stuff because upstream does not ship it yet
	# it has to be done before unbundling.
	if use ppc64; then
		pushd third_party/libvpx >/dev/null || die
		mkdir -p source/config/linux/ppc64 || die
		# requires git and clang, bug #832803
		# Revert https://chromium.googlesource.com/chromium/src/+/b463d0f40b08b4e896e7f458d89ae58ce2a27165%5E%21/third_party/libvpx/generate_gni.sh
		# and https://chromium.googlesource.com/chromium/src/+/71ebcbce867dd31da5f8b405a28fcb0de0657d91%5E%21/third_party/libvpx/generate_gni.sh
		# since we're not in a git repo
		sed -i -e "s|^update_readme||g; s|clang-format|${EPREFIX}/bin/true|g; /^git -C/d; /git cl/d; /cd \$BASE_DIR\/\$LIBVPX_SRC_DIR/ign format --in-place \$BASE_DIR\/BUILD.gn\ngn format --in-place \$BASE_DIR\/libvpx_srcs.gni" \
			generate_gni.sh || die
		./generate_gni.sh || die
		popd >/dev/null || die

		pushd third_party/ffmpeg >/dev/null || die
		cp libavcodec/ppc/h264dsp.c libavcodec/ppc/h264dsp_ppc.c || die
		cp libavcodec/ppc/h264qpel.c libavcodec/ppc/h264qpel_ppc.c || die
		popd >/dev/null || die
	fi

	# Sanity check keeplibs, on major version bumps it is often necessary to update this list
	# and this enables us to hit them all at once.
	# There are some entries that need to be whitelisted (TODO: Why? The file is understandable, the rest seem odd)
	whitelist_libs=(
		net/third_party/quic
		third_party/devtools-frontend/src/front_end/third_party/additional_readme_paths.json
		third_party/libjingle
		third_party/mesa
		third_party/skia/third_party/vulkan
		third_party/vulkan
	)
	local not_found_libs=()
	for lib in "${keeplibs[@]}"; do
		if [[ ! -d "${lib}" ]] && ! has "${lib}" "${whitelist_libs[@]}"; then
			not_found_libs+=( "${lib}" )
		fi
	done

	if [[ ${#not_found_libs[@]} -gt 0 ]]; then
		ewarn "The following \`keeplibs\` directories were not found in the source tree:"
		for lib in "${not_found_libs[@]}"; do
			ewarn "  ${lib}"
		done
	fi

	# Remove most bundled libraries. Some are still needed.
	einfo "Unbundling third-party libraries ..."
	build/linux/unbundle/remove_bundled_libraries.py "${keeplibs[@]}" --do-remove || die

	# bundled eu-strip is for amd64 only and we don't want to pre-stripped binaries
	mkdir -p buildtools/third_party/eu-strip/bin || die
	ln -s "${EPREFIX}"/bin/true buildtools/third_party/eu-strip/bin/eu-strip || die

	cp "${FILESDIR}/electron-launcher.sh" "${WORKDIR}"
	sed -i "s|@ELECTRON@|electron-${PV%%.*}|" "${WORKDIR}/electron-launcher.sh"
	sed -i "s|@LIBDIR@|$(get_libdir)|" "${WORKDIR}/electron-launcher.sh"
}

src_configure() {
	# Calling this here supports resumption via FEATURES=keepwork
	python_setup

	pushd electron > /dev/null || die
	#!v No control over what happens here
	einfo "Installing node_modules"
	# yarn config set disable-self-update-check true || die
	# yarn config set yarn-offline-mirror "${DISTDIR}" || die
	# yarn config set cacheFolder "${DISTDIR}" || die
	# yarn install --frozen-lockfile --offline --no-progress --ignore-scripts || die
	# export YARN_CACHE_FOLDER=${DISTDIR}
	# export YARN_ENABLE_OFFLINE_MODE=1
	yarn config set --home enableTelemetry 0 || die
	# yarn config set --home cacheFolder ${DISTDIR}
	yarn install || die
	#!^ No control over what happens here
	popd > /dev/null || die

	local myconf_gn=""

	# Make sure the build system will use the right tools, bug #340795.
	tc-export AR CC CXX NM

	if use clang && ! tc-is-clang ; then
		einfo "Enforcing the use of clang due to USE=clang ..."
		if tc-is-cross-compiler; then
			CC="${CBUILD}-clang -target ${CHOST} --sysroot ${ESYSROOT}"
			CXX="${CBUILD}-clang++ -target ${CHOST} --sysroot ${ESYSROOT}"
			BUILD_CC=${CBUILD}-clang
			BUILD_CXX=${CBUILD}-clang++
		else
			CC=${CHOST}-clang
			CXX=${CHOST}-clang++
		fi
		strip-unsupported-flags
	elif ! use clang && ! tc-is-gcc ; then
		einfo "Enforcing the use of gcc due to USE=-clang ..."
		CC=${CHOST}-gcc
		CXX=${CHOST}-g++
		strip-unsupported-flags
	fi

	if tc-is-clang; then
		myconf_gn+=" is_clang=true clang_use_chrome_plugins=false use_clang_modules=false"
	else
		myconf_gn+=" is_clang=false"
	fi

	# Force lld for lto or pgo builds only, otherwise disable, bug 641556
	if use thinlto || use pgo || use clang || use nvidia; then
		myconf_gn+=" use_lld=true"
	else
		myconf_gn+=" use_lld=false"
	fi

	if use thinlto || use pgo; then
		AR=llvm-ar
		NM=llvm-nm
		if tc-is-cross-compiler; then
			BUILD_AR=llvm-ar
			BUILD_NM=llvm-nm
		fi
	fi

	# Define a custom toolchain for GN
	myconf_gn+=" custom_toolchain=\"//build/toolchain/linux/unbundle:default\""

	if tc-is-cross-compiler; then
		tc-export BUILD_{AR,CC,CXX,NM}
		myconf_gn+=" host_toolchain=\"//build/toolchain/linux/unbundle:host\""
		myconf_gn+=" v8_snapshot_toolchain=\"//build/toolchain/linux/unbundle:host\""
		myconf_gn+=" pkg_config=\"$(tc-getPKG_CONFIG)\""
		myconf_gn+=" host_pkg_config=\"$(tc-getBUILD_PKG_CONFIG)\""

		# setup cups-config, build system only uses --libs option
		if use cups; then
			mkdir "${T}/cups-config" || die
			cp "${ESYSROOT}/usr/bin/${CHOST}-cups-config" "${T}/cups-config/cups-config" || die
			export PATH="${PATH}:${T}/cups-config"
		fi

		# Don't inherit PKG_CONFIG_PATH from environment
		local -x PKG_CONFIG_PATH=
	else
		myconf_gn+=" host_toolchain=\"//build/toolchain/linux/unbundle:default\""
	fi

	# Disable rust for now; it's only used for testing and we don't need the additional bdep
	myconf_gn+=" enable_rust=false"

	# GN needs explicit config for Debug/Release as opposed to inferring it from build directory.
	myconf_gn+=" is_debug=$(usex debug true false)"

	# enable DCHECK with USE=debug only, increases chrome binary size by 30%, bug #811138.
	# DCHECK is fatal by default, make it configurable at runtime, #bug 807881.
	myconf_gn+=" dcheck_always_on=$(usex debug true false)"
	myconf_gn+=" dcheck_is_configurable=$(usex debug true false)"

	myconf_gn+=" enable_iterator_debugging=$(usex debug true false)"

	if use debug; then
		myconf_gn+=" symbol_level=2"
		myconf_gn+=" blink_symbol_level=2"
		myconf_gn+=" v8_symbol_level=2"
	else
		myconf_gn+=" symbol_level=0"
		myconf_gn+=" blink_symbol_level=0"
		myconf_gn+=" v8_symbol_level=0"
	fi

	# Component build isn't generally intended for use by end users. It's mostly useful
	# for development and debugging.
	myconf_gn+=" is_component_build=false"

	local gn_system_libraries=(
		flac
		fontconfig
		freetype
		libjpeg
		libwebp
		libxml
		libxslt
		zlib
	)
	if use system-abseil-cpp; then
	gn_system_libraries+=(
		absl_algorithm
		absl_base
		absl_cleanup
		absl_container
		absl_crc
		absl_debugging
		absl_flags
		absl_functional
		absl_hash
		absl_log
		absl_log_internal
		absl_memory
		absl_meta
		absl_numeric
		absl_random
		absl_status
		absl_strings
		absl_synchronization
		absl_time
		absl_types
		absl_utility
	)
	fi
	if use system-brotli; then
		gn_system_libraries+=( brotli )
	fi
	if use system-crc32c; then
		gn_system_libraries+=( crc32c )
	fi
	if use system-double-conversion; then
		gn_system_libraries+=( double-conversion )
	fi
	if use system-woff2; then
		gn_system_libraries+=( woff2 )
	fi
	if use nvidia; then
		gn_system_libraries+=( libXNVCtrl )
	fi
	if use system-ffmpeg; then
		gn_system_libraries+=( ffmpeg opus )
	fi
	if use system-jsoncpp; then
		gn_system_libraries+=( jsoncpp )
	fi
	if use system-icu; then
		gn_system_libraries+=( icu )
	fi
	if use system-png; then
		gn_system_libraries+=( libpng )
		myconf_gn+=" use_system_libpng=true"
	fi
	if use system-zstd; then
		gn_system_libraries+=( zstd )
	fi
	if use system-av1; then
		gn_system_libraries+=( dav1d libaom )
	fi
	if use system-libusb; then
		gn_system_libraries+=( libusb )
	fi
	if use system-libvpx; then
		gn_system_libraries+=( libvpx )
	fi
	use system-openh264 && gn_system_libraries+=(
		openh264
	)
	use system-re2 && gn_system_libraries+=(
		re2
	)
	use system-snappy && gn_system_libraries+=(
		snappy
	)

	build/linux/unbundle/replace_gn_files.py --system-libraries "${gn_system_libraries[@]}" ||
		die "Failed to replace GN files for system libraries"

	# TODO 131: The above call clobbers `enable_freetype = true` in the freetype gni file
	# drop the last line, then append the freetype line and a new curly brace to end the block
	local freetype_gni="build/config/freetype/freetype.gni"
	sed -i -e '$d' ${freetype_gni} || die
	echo "  enable_freetype = true" >> ${freetype_gni} || die
	echo "}" >> ${freetype_gni} || die

	# See dependency logic in third_party/BUILD.gn
	myconf_gn+=" use_system_harfbuzz=$(usex system-harfbuzz true false)"

	# Optional dependencies.
	myconf_gn+=" enable_hangout_services_extension=$(usex hangouts true false)"
	myconf_gn+=" use_cups=$(usex cups true false)"
	myconf_gn+=" use_kerberos=$(usex kerberos true false)"
	myconf_gn+=" use_pulseaudio=$(usex pulseaudio true false)"
	myconf_gn+=" use_vaapi=$(usex vaapi true false)"
	myconf_gn+=" rtc_use_pipewire=$(usex screencast true false)"
	myconf_gn+=" gtk_version=$(usex gtk4 4 3)"

	myconf_gn+=" disable_fieldtrial_testing_config=true"

	# The sysroot is the oldest debian image that chromium supports, we don't need it
	myconf_gn+=" use_sysroot=false"

	# This determines whether or not GN uses the bundled libcxx
	if use libcxx; then
		myconf_gn+=" use_custom_libcxx=true"
	else
		myconf_gn+=" use_custom_libcxx=false"
		myconf_gn+=" use_llvm_libatomic=false"
		append-cppflags -U_GLIBCXX_ASSERTIONS #See #318
	fi

	myconf_gn+=" use_bluez=$(usex bluetooth true false)"

	if use pgo; then
		myconf_gn+=" chrome_pgo_phase=2"
		myconf_gn+=" v8_enable_builtins_optimization=true"
	else
		myconf_gn+=" chrome_pgo_phase=0"
	fi

	myconf_gn+=" optimize_webui=$(usex optimize-webui true false)"
	myconf_gn+=" use_system_freetype=$(usex system-harfbuzz true false)"
	myconf_gn+=" use_system_libopenjpeg2=$(usex system-openjpeg true false)"
	myconf_gn+=" enable_pdf=true"
	myconf_gn+=" use_system_lcms2=true"
	myconf_gn+=" enable_print_preview=true"

	# Ungoogled flags
	myconf_gn+=" enable_mse_mpeg2ts_stream_parser=$(usex proprietary-codecs true false)"
	myconf_gn+=" enable_remoting=false"
	myconf_gn+=" enable_reporting=false"
	if use ungoogled; then
	myconf_gn+=" build_with_tflite_lib=false"
	myconf_gn+=" enable_mdns=false"
	myconf_gn+=" enable_service_discovery=false"
	fi
	myconf_gn+=" exclude_unwind_tables=true"
	myconf_gn+=" google_api_key=\"\""
	myconf_gn+=" google_default_client_id=\"\""
	myconf_gn+=" google_default_client_secret=\"\""
	myconf_gn+=" safe_browsing_mode=0"
	myconf_gn+=" use_official_google_api_keys=false"
	myconf_gn+=" use_unofficial_version_number=false"

	# myconf_gn+=" enable_swiftshader=false"
	myconf_gn+=" enterprise_local_content_analysis=false"

	# Additional flags
	myconf_gn+=" perfetto_use_system_zlib=true"
	myconf_gn+=" use_system_zlib=true"
	myconf_gn+=" use_system_libjpeg=true"
	myconf_gn+=" rtc_build_examples=false"
	myconf_gn+=" enable_chromium_prelude=false"
	myconf_gn+=" enable_updater=false"
	myconf_gn+=" enable_update_notifications=false"
	myconf_gn+=" enable_constraints=false"
	myconf_gn+=" rtc_rusty_base64=false"
	myconf_gn+=" enable_rust_mojo=false"
	myconf_gn+=" v8_enable_temporal_support=false"
	myconf_gn+=" media_use_symphonia=false"
	myconf_gn+=" pdf_enable_rust_png=false"
	myconf_gn+=" skia_use_libpng_encode=true"
	myconf_gn+=" skia_use_libpng_decode=true"
	myconf_gn+=" skia_use_rust_png_decode=false"
	myconf_gn+=" skia_use_rust_png_encode=false"
	myconf_gn+=" override_electron_version=\"${PV}\""

	# Disable pseudolocales, only used for testing
	myconf_gn+=" enable_pseudolocales=false"

	# Disable code formating of generated files
	myconf_gn+=" blink_enable_generated_code_formatting=false"

	ffmpeg_branding="$(usex proprietary-codecs Chrome Chromium)"
	myconf_gn+=" proprietary_codecs=$(usex proprietary-codecs true false)"
	myconf_gn+=" rtc_use_h264=$(usex proprietary-codecs true false)"
	myconf_gn+=" ffmpeg_branding=\"${ffmpeg_branding}\""

	local myarch="$(tc-arch)"

	# Avoid CFLAGS problems
	if ! use custom-cflags; then
		filter-flags "-O*" "-Wl,-O*" #See #25
		strip-flags

		# Prevent linker from running out of address space, bug #471810 .
		if use x86; then
			filter-flags "-g*"
		fi

		# Prevent libvpx/xnnpack build failures. Bug 530248, 544702, 546984, 853646.
		if [[ ${myarch} == amd64 || ${myarch} == x86 ]]; then
			filter-flags -mno-mmx -mno-sse2 -mno-ssse3 -mno-sse4.1 -mno-avx -mno-avx2 -mno-fma -mno-fma4 -mno-xop -mno-sse4a
		fi

		if tc-is-gcc; then
			# https://bugs.gentoo.org/904455
			local -x CPP="$(tc-getCXX) -E"
			# https://bugs.gentoo.org/912381
			filter-lto
		fi
	fi

	local dest_cpu=""

	if [[ $myarch = amd64 ]] ; then
		dest_cpu=x64
		myconf_gn+=" target_cpu=\"x64\""
		ffmpeg_target_arch=x64
		dest_cpu="x64"
	elif [[ $myarch = x86 ]] ; then
		myconf_gn+=" target_cpu=\"x86\""
		ffmpeg_target_arch=ia32
		dest_cpu="x86"

		# This is normally defined by compiler_cpu_abi in
		# build/config/compiler/BUILD.gn, but we patch that part out.
		append-flags -msse2 -mfpmath=sse -mmmx
	elif [[ $myarch = arm64 ]] ; then
		myconf_gn+=" target_cpu=\"arm64\""
		ffmpeg_target_arch=arm64
		dest_cpu="arm64"
	elif [[ $myarch = arm ]] ; then
		myconf_gn+=" target_cpu=\"arm\""
		ffmpeg_target_arch=$(usex cpu_flags_arm_neon arm-neon arm)
		dest_cpu="arm"
	elif [[ $myarch = ppc64 ]] ; then
		myconf_gn+=" target_cpu=\"ppc64\""
		ffmpeg_target_arch=ppc64
		dest_cpu="ppc64"
	else
		die "Failed to determine target arch, got '$myarch'."
	fi

	if use thinlto; then
		# We need to change the default value of import-instr-limit in
		# LLVM to limit the text size increase. The default value is
		# 100, and we change it to 30 to reduce the text size increase
		# from 25% to 10%. The performance number of page_cycler is the
		# same on two of the thinLTO configurations, we got 1% slowdown
		# on speedometer when changing import-instr-limit from 100 to 30.
		# append-ldflags "-Wl,-plugin-opt,-import-instr-limit=30"
		sed -i '/import_instr_limit = 5/{s++import_instr_limit = 30+;h};${x;/./{x;q0};x;q1}' \
			build/config/compiler/BUILD.gn || die

		append-ldflags "-Wl,--thinlto-jobs=$(makeopts_jobs)"
	fi

	myconf_gn+=" treat_warnings_as_errors=false"
	# Disable fatal linker warnings, bug 506268.
	myconf_gn+=" fatal_linker_warnings=false"

	# Disable external code space for V8 for ppc64. It is disabled for ppc64
	# by default, but cross-compiling on amd64 enables it again.
	if tc-is-cross-compiler; then
		if ! use amd64 && ! use arm64; then
			myconf_gn+=" v8_enable_external_code_space=false"
		fi
	fi

	# Only enabled for clang, but gcc has endian macros too
	myconf_gn+=" v8_use_libm_trig_functions=true"

	# Bug 491582.
	export TMPDIR="${WORKDIR}/temp"
	mkdir -p -m 755 "${TMPDIR}" || die

	# https://bugs.gentoo.org/654216
	addpredict /dev/dri/ #nowarn

	# Disable unknown warning message from clang.
	if tc-is-clang; then
		append-flags -Wno-unknown-warning-option
		if tc-is-cross-compiler; then
			export BUILD_CXXFLAGS+=" -Wno-unknown-warning-option"
			export BUILD_CFLAGS+=" -Wno-unknown-warning-option"
		fi
	fi

	# Explicitly disable ICU data file support for system-icu builds.
	if use system-icu; then
		myconf_gn+=" icu_use_data_file=false"
	fi

	# Don't need nocompile checks and GN crashes with our config
	myconf_gn+=" enable_nocompile_tests=false"

	# 131 began laying the groundwork for replacing freetype with
	# "Rust-based Fontations set of libraries plus Skia path rendering"
	# We now need to opt-in
	myconf_gn+=" enable_freetype=true"

	# Enable ozone wayland support
	myconf_gn+=" use_ozone=true ozone_auto_platforms=false"
	myconf_gn+=" ozone_platform_headless=true"
	myconf_gn+=" use_system_minigbm=true"
	myconf_gn+=" use_xkbcommon=true"
	myconf_gn+=" ozone_platform_x11=$(usex X true false)"
	myconf_gn+=" ozone_platform_wayland=$(usex wayland true false)"
	myconf_gn+=" ozone_platform=$(usex wayland \"wayland\" \"x11\")"
	use wayland && myconf_gn+=" use_system_libffi=true"

	# Results in undefined references in chrome linking, may require CFI to work
	if use arm64; then
		myconf_gn+=" arm_control_flow_integrity=\"none\""
	fi

	# Enable official builds
	myconf_gn+=" is_official_build=true"
	myconf_gn+=" use_thin_lto=$(usex thinlto true false)"
	myconf_gn+=" thin_lto_enable_optimizations=$(usex optimize-thinlto true false)"
	# Allow building against system libraries in official builds
	sed -i 's/OFFICIAL_BUILD/GOOGLE_CHROME_BUILD/' \
		tools/generate_shim_headers/generate_shim_headers.py || die

	# user CXXFLAGS might overwrite -march=armv8-a+crc+crypto, bug #851639
	if use arm64 && tc-is-gcc; then
		sed -i '/^#if HAVE_ARM64_CRC32C/a #pragma GCC target ("+crc+crypto")' \
			third_party/crc32c/src/src/crc32c_arm64.cc || die
	fi

	# skipping typecheck is only supported on amd64, bug #876157
	if ! use amd64; then
		myconf_gn+=" devtools_skip_typecheck=false"
	fi

	# Facilitate deterministic builds (taken from build/config/compiler/BUILD.gn)
	append-cflags -Wno-builtin-macro-redefined
	append-cxxflags -Wno-builtin-macro-redefined
	append-cppflags "-D__DATE__= -D__TIME__= -D__TIMESTAMP__="

	myconf_gn+=" import(\"//electron/build/args/release.gn\")"

	local flags
	einfo "Building with the following compiler settings:"
	for flags in C{C,XX} AR NM RANLIB {C,CXX,CPP,LD}FLAGS \
		EXTRA_GN UGC_{SKIP_{PATCHES,SUBSTITUTION},KEEP_BINARIES} ; do
		einfo "  ${flags} = \"${!flags}\""
	done

	einfo "Configuring Electron ..."
	set -- gn gen --args="${myconf_gn} ${EXTRA_GN}" out/Release
	echo "$@"
	"$@" || die

	# The "if" below should not be executed unless testing
	if [ ! -z "${NODIE}" ]; then
		# List all args
		# gn args --list out/Release

		# Quick compiler check
		eninja -C out/Release protoc torque
	fi
}

src_compile() {
	# Final link uses lots of file descriptors.
	ulimit -n 2048

	# Calling this here supports resumption via FEATURES=keepwork
	python_setup

	# Don't inherit PYTHONPATH from environment, bug #789021, #812689
	local -x PYTHONPATH=

	#! Fixing things
	export ELECTRON_OUT_DIR=Release
	eninja -C out/Release electron:node_headers

	# Build mksnapshot and pax-mark it.
	if use pax-kernel; then
		local x
		for x in mksnapshot v8_context_snapshot_generator; do
			if tc-is-cross-compiler; then
				eninja -C out/Release "host/${x}"
				pax-mark m "out/Release/host/${x}"
			else
				eninja -C out/Release "${x}"
				pax-mark m "out/Release/${x}"
			fi
		done
	fi

	# Even though ninja autodetects number of CPUs, we respect
	# user's options, for debugging with -j 1 or any other reason.
	eninja -C out/Release electron

	pax-mark m out/Release/electron
}

src_install() {
	local CHROMIUM_HOME="/usr/$(get_libdir)/electron-${PV%%.*}"
	exeinto "${CHROMIUM_HOME}"
	doexe out/Release/electron
	doexe "${FILESDIR}/node"

	exeinto "/usr/bin"
	newexe "${WORKDIR}/electron-launcher.sh" "electron-${PV%%.*}"

	pushd out/Release/locales > /dev/null || die
	chromium_remove_language_paks
	popd

	insinto "${CHROMIUM_HOME}"
	doins out/Release/*.bin
	doins out/Release/*.pak
	(
		shopt -s nullglob
		local files=(out/Release/*.so out/Release/*.so.[0-9])
		[[ ${#files[@]} -gt 0 ]] && doins "${files[@]}"
	)

	# # Install bundled xdg-utils, avoids installing X11 libraries with USE="-X wayland"
	# doins out/Release/xdg-{settings,mime}

	if ! use system-icu; then
		doins out/Release/icudtl.dat
	fi

	doins -r out/Release/locales
	doins -r out/Release/resources
	#doins -r out/Release/MEIPreload

	# Install vk_swiftshader_icd.json; bug #827861
	doins out/Release/vk_swiftshader_icd.json

	if [[ -d out/Release/swiftshader ]]; then
		insinto "${CHROMIUM_HOME}/swiftshader"
		doins out/Release/swiftshader/*.so
	fi

	if use dev-dependencies; then
		doins -r electron/node_modules
		fperms -R 755 "${CHROMIUM_HOME}/node_modules/.bin/"
	fi

	insinto "${CHROMIUM_HOME}/node_modules"
	doins -r "third_party/electron_node/deps/npm"
	fperms -R 755 "${CHROMIUM_HOME}/node_modules/npm/bin/"

	exeinto "${CHROMIUM_HOME}/node_modules/npm/bin/"
	doexe "${FILESDIR}/node-gyp"

	insinto "/usr/include/electron-${PV%%.*}/node/"
	doins -r out/Release/gen/node_headers/include

}

pkg_postinst() {
	#? How to supply these flags to Electron?
	if use vaapi; then
		elog "VA-API is disabled by default at runtime. You have to enable it"
		elog "by adding --enable-features=VaapiVideoDecoder and "
		elog "--disable-features=UseChromeOSDirectVideoDecoder to CHROMIUM_FLAGS"
		elog "in /etc/chromium/default."
	fi
	if use screencast; then
		elog "Screencast is disabled by default at runtime. Either enable it"
		elog "by navigating to chrome://flags/#enable-webrtc-pipewire-capturer"
		elog "inside Chromium or add --enable-features=WebRTCPipeWireCapturer"
		elog "to CHROMIUM_FLAGS in /etc/chromium/default."
	fi
	if use gtk4; then
		elog "Chromium prefers GTK3 over GTK4 at runtime. To override this"
		elog "behavior you need to pass --gtk-version=4, e.g. by adding it"
		elog "to CHROMIUM_FLAGS in /etc/chromium/default."
	fi

	electron-config update
}

pkg_postrm() {
	electron-config update
}