From: Matt Jolly <kan...@gentoo.org>

Firefox is a bit unusual in that the LTO via the USE=clang path
requires a strong dependency between the selected Rust and LLVM
slots, while building with GCC (and without LTO) does not.

Leverage llvm-r1 to add `llvm_slot_x` USE and use these to ensure
that an appropriate Rust impl is always available. The Rust dependency
is not gated by `clang?` so that if a user selects `llvm_slot_19`
portage will attempt to pick an appraopriate Rust impl.

This may pull LLVM in on a few more systems, but they likely had
it anyway.

Signed-off-by: Matt Jolly <kan...@gentoo.org>
---
 www-client/firefox/firefox-132.0-r1.ebuild | 1341 ++++++++++++++++++++
 1 file changed, 1341 insertions(+)
 create mode 100644 www-client/firefox/firefox-132.0-r1.ebuild

diff --git a/www-client/firefox/firefox-132.0-r1.ebuild 
b/www-client/firefox/firefox-132.0-r1.ebuild
new file mode 100644
index 000000000000..6a8687fea3bb
--- /dev/null
+++ b/www-client/firefox/firefox-132.0-r1.ebuild
@@ -0,0 +1,1341 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+FIREFOX_PATCHSET="firefox-132-patches-01.tar.xz"
+
+LLVM_COMPAT=( 17 18 19 )
+# This will also filter Rust versions in the non-llvm-r1 case, but this is 
fine.
+RUST_NEEDS_LLVM=1
+
+PYTHON_COMPAT=( python3_{10..12} )
+PYTHON_REQ_USE="ncurses,sqlite,ssl"
+
+WANT_AUTOCONF="2.1"
+
+VIRTUALX_REQUIRED="manual"
+
+MOZ_ESR=
+
+MOZ_PV=${PV}
+MOZ_PV_SUFFIX=
+if [[ ${PV} =~ (_(alpha|beta|rc).*)$ ]] ; then
+       MOZ_PV_SUFFIX=${BASH_REMATCH[1]}
+
+       # Convert the ebuild version to the upstream Mozilla version
+       MOZ_PV="${MOZ_PV/_alpha/a}" # Handle alpha for SRC_URI
+       MOZ_PV="${MOZ_PV/_beta/b}"  # Handle beta for SRC_URI
+       MOZ_PV="${MOZ_PV%%_rc*}"    # Handle rc for SRC_URI
+fi
+
+if [[ -n ${MOZ_ESR} ]] ; then
+       # ESR releases have slightly different version numbers
+       MOZ_PV="${MOZ_PV}esr"
+       HOMEPAGE="https://www.mozilla.com/firefox 
https://www.mozilla.org/firefox/enterprise/";
+       SLOT="esr"
+else
+       HOMEPAGE="https://www.mozilla.com/firefox";
+       SLOT="rapid"
+fi
+
+MOZ_PN="${PN%-bin}"
+MOZ_P="${MOZ_PN}-${MOZ_PV}"
+MOZ_PV_DISTFILES="${MOZ_PV}${MOZ_PV_SUFFIX}"
+MOZ_P_DISTFILES="${MOZ_PN}-${MOZ_PV_DISTFILES}"
+
+inherit autotools check-reqs desktop flag-o-matic gnome2-utils linux-info 
llvm-r1 multiprocessing \
+       optfeature pax-utils python-any-r1 rust readme.gentoo-r1 
toolchain-funcs virtualx xdg
+
+MOZ_SRC_BASE_URI="https://archive.mozilla.org/pub/${MOZ_PN}/releases/${MOZ_PV}";
+
+if [[ ${PV} == *_rc* ]] ; then
+       
MOZ_SRC_BASE_URI="https://archive.mozilla.org/pub/${MOZ_PN}/candidates/${MOZ_PV}-candidates/build${PV##*_rc}";
+fi
+
+PATCH_URIS=(
+       https://dev.gentoo.org/~juippis/mozilla/patchsets/${FIREFOX_PATCHSET}
+)
+
+DESCRIPTION="Firefox Web Browser"
+SRC_URI="${MOZ_SRC_BASE_URI}/source/${MOZ_P}.source.tar.xz -> 
${MOZ_P_DISTFILES}.source.tar.xz
+       ${PATCH_URIS[@]}"
+S="${WORKDIR}/${PN}-${PV%_*}"
+LICENSE="MPL-2.0 GPL-2 LGPL-2.1"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
+
+IUSE="clang dbus debug eme-free hardened hwaccel jack +jumbo-build libproxy 
openh264 pgo"
+IUSE+=" pulseaudio sndio selinux +system-av1 +system-harfbuzz +system-icu 
+system-jpeg"
+IUSE+=" +system-jpeg +system-libevent +system-libvpx system-png +system-webp 
+telemetry valgrind"
+IUSE+=" wayland wifi +X"
+
+# Firefox-only IUSE
+IUSE+=" +gmp-autoupdate gnome-shell"
+
+# !jumbo-build? ( clang ) -> bmo#1914774, bgo#939004 - causes seemingly random 
compile crashes with gcc.
+# A side effect of supporting both the clang and non-clang path; 
LLVM_REQUIRED_USE here
+# prevents users from disabling all `llvm_slot_#` USE flags, ensuring that a 
suitable Rust can be selected.
+REQUIRED_USE="|| ( X wayland )
+       debug? ( !system-av1 )
+       !jumbo-build? ( clang )
+       wayland? ( dbus )
+       wifi? ( dbus )
+"
+
+FF_ONLY_DEPEND="!www-client/firefox:0
+       selinux? ( sec-policy/selinux-mozilla )"
+BDEPEND="${PYTHON_DEPS}
+       $(llvm_gen_dep '
+               sys-devel/clang:${LLVM_SLOT}
+               sys-devel/llvm:${LLVM_SLOT}
+               clang? (
+                       sys-devel/lld:${LLVM_SLOT}
+               )
+               pgo? ( sys-libs/compiler-rt-sanitizers:${LLVM_SLOT}[profile] )
+       ')
+       ${RUST_LLVM_DEPS}
+       app-alternatives/awk
+       app-arch/unzip
+       app-arch/zip
+       >=dev-util/cbindgen-0.26.0
+       net-libs/nodejs
+       virtual/pkgconfig
+       amd64? ( >=dev-lang/nasm-2.14 )
+       x86? ( >=dev-lang/nasm-2.14 )
+       pgo? (
+               X? (
+                       sys-devel/gettext
+                       x11-base/xorg-server[xvfb]
+                       x11-apps/xhost
+               )
+               !X? (
+                       || (
+                               gui-wm/tinywl
+                               <gui-libs/wlroots-0.17.3[tinywl(-)]
+                       )
+                       x11-misc/xkeyboard-config
+               )
+       )"
+COMMON_DEPEND="${FF_ONLY_DEPEND}
+       >=app-accessibility/at-spi2-core-2.46.0:2
+       dev-libs/expat
+       dev-libs/glib:2
+       dev-libs/libffi:=
+       >=dev-libs/nss-3.105
+       >=dev-libs/nspr-4.35
+       media-libs/alsa-lib
+       media-libs/fontconfig
+       media-libs/freetype
+       media-libs/mesa
+       media-video/ffmpeg
+       sys-libs/zlib
+       virtual/freedesktop-icon-theme
+       x11-libs/cairo
+       x11-libs/gdk-pixbuf:2
+       x11-libs/pango
+       x11-libs/pixman
+       dbus? (
+               sys-apps/dbus
+       )
+       jack? ( virtual/jack )
+       pulseaudio? (
+               || (
+                       media-libs/libpulse
+                       >=media-sound/apulse-0.1.12-r4[sdk]
+               )
+       )
+       libproxy? ( net-libs/libproxy )
+       selinux? ( sec-policy/selinux-mozilla )
+       sndio? ( >=media-sound/sndio-1.8.0-r1 )
+       system-av1? (
+               >=media-libs/dav1d-1.0.0:=
+               >=media-libs/libaom-1.0.0:=
+       )
+       system-harfbuzz? (
+               >=media-gfx/graphite2-1.3.13
+               >=media-libs/harfbuzz-2.8.1:0=
+       )
+       system-icu? ( >=dev-libs/icu-73.1:= )
+       system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1:= )
+       system-libevent? ( >=dev-libs/libevent-2.1.12:0=[threads(+)] )
+       system-libvpx? ( >=media-libs/libvpx-1.8.2:0=[postproc] )
+       system-png? ( >=media-libs/libpng-1.6.35:0=[apng] )
+       system-webp? ( >=media-libs/libwebp-1.1.0:0= )
+       valgrind? ( dev-debug/valgrind )
+       wayland? (
+               >=media-libs/libepoxy-1.5.10-r1
+               x11-libs/gtk+:3[wayland]
+       )
+       wifi? (
+               kernel_linux? (
+                       || (
+                               net-misc/networkmanager
+                               net-misc/connman[networkmanager]
+                       )
+                       sys-apps/dbus
+               )
+       )
+       X? (
+               virtual/opengl
+               x11-libs/cairo[X]
+               x11-libs/gtk+:3[X]
+               x11-libs/libX11
+               x11-libs/libXcomposite
+               x11-libs/libXdamage
+               x11-libs/libXext
+               x11-libs/libXfixes
+               x11-libs/libXrandr
+               x11-libs/libxcb:=
+       )"
+RDEPEND="${COMMON_DEPEND}
+       hwaccel? (
+               media-video/libva-utils
+               sys-apps/pciutils
+       )
+       jack? ( virtual/jack )
+       openh264? ( media-libs/openh264:*[plugin] )"
+DEPEND="${COMMON_DEPEND}
+       X? (
+               x11-base/xorg-proto
+               x11-libs/libICE
+               x11-libs/libSM
+       )"
+
+# ESR and rapid dependencies.
+if [[ -n ${MOZ_ESR} ]] ; then
+       RDEPEND+=" !www-client/firefox:rapid"
+else
+       RDEPEND+=" !www-client/firefox:esr"
+fi
+
+# Allow MOZ_GMP_PLUGIN_LIST to be set in an eclass or
+# overridden in the enviromnent (advanced hackers only)
+if [[ -z "${MOZ_GMP_PLUGIN_LIST+set}" ]] ; then
+       MOZ_GMP_PLUGIN_LIST=( gmp-gmpopenh264 gmp-widevinecdm )
+fi
+
+llvm_check_deps() {
+       if ! has_version -b "sys-devel/clang:${LLVM_SLOT}" ; then
+               einfo "sys-devel/clang:${LLVM_SLOT} is missing! Cannot use LLVM 
slot ${LLVM_SLOT} ..." >&2
+               return 1
+       fi
+
+       if use clang && ! tc-ld-is-mold ; then
+               if ! has_version -b "sys-devel/lld:${LLVM_SLOT}" ; then
+                       einfo "sys-devel/lld:${LLVM_SLOT} is missing! Cannot 
use LLVM slot ${LLVM_SLOT} ..." >&2
+                       return 1
+               fi
+
+               if use pgo ; then
+                       if ! has_version -b 
"=sys-libs/compiler-rt-sanitizers-${LLVM_SLOT}*[profile]" ; then
+                               einfo 
"=sys-libs/compiler-rt-sanitizers-${LLVM_SLOT}*[profile] is missing!" >&2
+                               einfo "Cannot use LLVM slot ${LLVM_SLOT} ..." 
>&2
+                               return 1
+                       fi
+               fi
+       fi
+
+       einfo "Using LLVM slot ${LLVM_SLOT} to build" >&2
+}
+
+MOZ_LANGS=(
+       af ar ast be bg br ca cak cs cy da de dsb
+       el en-CA en-GB en-US es-AR es-ES et eu
+       fi fr fy-NL ga-IE gd gl he hr hsb hu
+       id is it ja ka kab kk ko lt lv ms nb-NO nl nn-NO
+       pa-IN pl pt-BR pt-PT rm ro ru
+       sk sl sq sr sv-SE th tr uk uz vi zh-CN zh-TW
+)
+
+# Firefox-only LANGS
+MOZ_LANGS+=( ach )
+MOZ_LANGS+=( an )
+MOZ_LANGS+=( az )
+MOZ_LANGS+=( bn )
+MOZ_LANGS+=( bs )
+MOZ_LANGS+=( ca-valencia )
+MOZ_LANGS+=( eo )
+MOZ_LANGS+=( es-CL )
+MOZ_LANGS+=( es-MX )
+MOZ_LANGS+=( fa )
+MOZ_LANGS+=( ff )
+MOZ_LANGS+=( fur )
+MOZ_LANGS+=( gn )
+MOZ_LANGS+=( gu-IN )
+MOZ_LANGS+=( hi-IN )
+MOZ_LANGS+=( hy-AM )
+MOZ_LANGS+=( ia )
+MOZ_LANGS+=( km )
+MOZ_LANGS+=( kn )
+MOZ_LANGS+=( lij )
+MOZ_LANGS+=( mk )
+MOZ_LANGS+=( mr )
+MOZ_LANGS+=( my )
+MOZ_LANGS+=( ne-NP )
+MOZ_LANGS+=( oc )
+MOZ_LANGS+=( sc )
+MOZ_LANGS+=( sco )
+MOZ_LANGS+=( si )
+MOZ_LANGS+=( skr )
+MOZ_LANGS+=( son )
+MOZ_LANGS+=( szl )
+MOZ_LANGS+=( ta )
+MOZ_LANGS+=( te )
+MOZ_LANGS+=( tl )
+MOZ_LANGS+=( trs )
+MOZ_LANGS+=( ur )
+MOZ_LANGS+=( xh )
+
+mozilla_set_globals() {
+       # https://bugs.gentoo.org/587334
+       local MOZ_TOO_REGIONALIZED_FOR_L10N=(
+               fy-NL ga-IE gu-IN hi-IN hy-AM nb-NO ne-NP nn-NO pa-IN sv-SE
+       )
+
+       local lang xflag
+       for lang in "${MOZ_LANGS[@]}" ; do
+               # en and en_US are handled internally
+               if [[ ${lang} == en ]] || [[ ${lang} == en-US ]] ; then
+                       continue
+               fi
+
+               # strip region subtag if $lang is in the list
+               if has ${lang} "${MOZ_TOO_REGIONALIZED_FOR_L10N[@]}" ; then
+                       xflag=${lang%%-*}
+               else
+                       xflag=${lang}
+               fi
+
+               SRC_URI+=" l10n_${xflag/[_@]/-}? ("
+               SRC_URI+=" ${MOZ_SRC_BASE_URI}/linux-x86_64/xpi/${lang}.xpi -> 
${MOZ_P_DISTFILES}-${lang}.xpi"
+               SRC_URI+=" )"
+               IUSE+=" l10n_${xflag/[_@]/-}"
+       done
+}
+mozilla_set_globals
+
+moz_clear_vendor_checksums() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -ne 1 ]] ; then
+               die "${FUNCNAME} requires exact one argument"
+       fi
+
+       einfo "Clearing cargo checksums for ${1} ..."
+
+       sed -i \
+               -e 's/\("files":{\)[^}]*/\1/' \
+               "${S}"/third_party/rust/${1}/.cargo-checksum.json || die
+}
+
+moz_install_xpi() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -lt 2 ]] ; then
+               die "${FUNCNAME} requires at least two arguments"
+       fi
+
+       local DESTDIR=${1}
+       shift
+
+       insinto "${DESTDIR}"
+
+       local emid xpi_file xpi_tmp_dir
+       for xpi_file in "${@}" ; do
+               emid=
+               xpi_tmp_dir=$(mktemp -d --tmpdir="${T}")
+
+               # Unpack XPI
+               unzip -qq "${xpi_file}" -d "${xpi_tmp_dir}" || die
+
+               # Determine extension ID
+               if [[ -f "${xpi_tmp_dir}/install.rdf" ]] ; then
+                       emid=$(sed -n -e '/install-manifest/,$ { /em:id/!d; 
s/.*[\">]\([^\"<>]*\)[\"<].*/\1/; p; q }' "${xpi_tmp_dir}/install.rdf")
+                       [[ -z "${emid}" ]] && die "failed to determine 
extension id from install.rdf"
+               elif [[ -f "${xpi_tmp_dir}/manifest.json" ]] ; then
+                       emid=$(sed -n -e 's/.*"id": "\([^"]*\)".*/\1/p' 
"${xpi_tmp_dir}/manifest.json")
+                       [[ -z "${emid}" ]] && die "failed to determine 
extension id from manifest.json"
+               else
+                       die "failed to determine extension id"
+               fi
+
+               einfo "Installing ${emid}.xpi into ${ED}${DESTDIR} ..."
+               newins "${xpi_file}" "${emid}.xpi"
+       done
+}
+
+mozconfig_add_options_ac() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -lt 2 ]] ; then
+               die "${FUNCNAME} requires at least two arguments"
+       fi
+
+       local reason=${1}
+       shift
+
+       local option
+       for option in ${@} ; do
+               echo "ac_add_options ${option} # ${reason}" >>${MOZCONFIG}
+       done
+}
+
+mozconfig_add_options_mk() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -lt 2 ]] ; then
+               die "${FUNCNAME} requires at least two arguments"
+       fi
+
+       local reason=${1}
+       shift
+
+       local option
+       for option in ${@} ; do
+               echo "mk_add_options ${option} # ${reason}" >>${MOZCONFIG}
+       done
+}
+
+mozconfig_use_enable() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -lt 1 ]] ; then
+               die "${FUNCNAME} requires at least one arguments"
+       fi
+
+       local flag=$(use_enable "${@}")
+       mozconfig_add_options_ac "$(use ${1} && echo +${1} || echo -${1})" 
"${flag}"
+}
+
+mozconfig_use_with() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       if [[ ${#} -lt 1 ]] ; then
+               die "${FUNCNAME} requires at least one arguments"
+       fi
+
+       local flag=$(use_with "${@}")
+       mozconfig_add_options_ac "$(use ${1} && echo +${1} || echo -${1})" 
"${flag}"
+}
+
+virtwl() {
+       debug-print-function ${FUNCNAME} "$@"
+
+       [[ $# -lt 1 ]] && die "${FUNCNAME} needs at least one argument"
+       [[ -n $XDG_RUNTIME_DIR ]] || die "${FUNCNAME} needs XDG_RUNTIME_DIR to 
be set; try xdg_environment_reset"
+       tinywl -h >/dev/null || die 'tinywl -h failed'
+
+       local VIRTWL VIRTWL_PID
+       coproc VIRTWL { WLR_BACKENDS=headless exec tinywl -s 'echo 
$WAYLAND_DISPLAY; read _; kill $PPID'; }
+       local -x WAYLAND_DISPLAY
+       read WAYLAND_DISPLAY <&${VIRTWL[0]}
+
+       debug-print "${FUNCNAME}: $@"
+       "$@"
+       local r=$?
+
+       [[ -n $VIRTWL_PID ]] || die "tinywl exited unexpectedly"
+       exec {VIRTWL[0]}<&- {VIRTWL[1]}>&-
+       return $r
+}
+
+pkg_pretend() {
+       if [[ ${MERGE_TYPE} != binary ]] ; then
+               if use pgo ; then
+                       if ! has usersandbox $FEATURES ; then
+                               die "You must enable usersandbox as X server 
can not run as root!"
+                       fi
+               fi
+
+               # Ensure we have enough disk space to compile
+               if use pgo || tc-is-lto || use debug ; then
+                       CHECKREQS_DISK_BUILD="13500M"
+               else
+                       CHECKREQS_DISK_BUILD="6600M"
+               fi
+
+               check-reqs_pkg_pretend
+       fi
+}
+
+pkg_setup() {
+
+       # Get LTO from environment; export after this phase for use in 
src_configure (etc)
+       use_lto=no
+
+       if [[ ${MERGE_TYPE} != binary ]] ; then
+
+               if tc-is-lto; then
+                       use_lto=yes
+                       # LTO is handled via configure
+                       # -Werror=lto-type-mismatch -Werror=odr are going to 
fail with GCC,
+                       # bmo#1516758, bgo#942288
+                       filter-lto
+                       filter-flags -Werror=lto-type-mismatch -Werror=odr
+               fi
+
+               if use pgo ; then
+                       if [[ ${use_lto} == "yes" ]]; then
+                               eerror "Building ${PN} with USE=pgo requires 
LTO!"
+                               die "Please fix your CFLAGS/CXXFLAGS."
+                       fi
+                       if ! has userpriv ${FEATURES} ; then
+                               eerror "Building ${PN} with USE=pgo and 
FEATURES=-userpriv is not supported!"
+                       fi
+               fi
+
+               # Ensure we have enough disk space to compile
+               if [[ ${use_lto} == "yes" ]] || use pgo || use debug ; then
+                       CHECKREQS_DISK_BUILD="13500M"
+               else
+                       CHECKREQS_DISK_BUILD="6400M"
+               fi
+
+               check-reqs_pkg_setup
+
+               llvm-r1_pkg_setup
+               rust_pkg_setup
+
+               if [[ ${use_lto} == "yes" ]]; then
+                       if use clang; then
+                               if ! (tc-ld-is-lld || tc-ld-is-mold) ; then
+                                       eerror "Building ${PN} with lto and 
requires the sys-devel/lld or sys-devel/mold linker!"
+                                       die "Please fix your toolchain 
configuration."
+                               fi
+                       else
+                               die "Building ${PN} with lto requires clang!"
+                       fi
+               fi
+
+               python-any-r1_pkg_setup
+
+               # Avoid PGO profiling problems due to enviroment leakage
+               # These should *always* be cleaned up anyway
+               unset \
+                       DBUS_SESSION_BUS_ADDRESS \
+                       DISPLAY \
+                       ORBIT_SOCKETDIR \
+                       SESSION_MANAGER \
+                       XAUTHORITY \
+                       XDG_CACHE_HOME \
+                       XDG_SESSION_COOKIE
+
+               # Build system is using /proc/self/oom_score_adj, bug #604394
+               addpredict /proc/self/oom_score_adj
+
+               if use pgo ; then
+                       # Update 105.0: "/proc/self/oom_score_adj" isn't enough 
anymore with pgo, but not sure
+                       # whether that's due to better OOM handling by Firefox 
(bmo#1771712), or portage
+                       # (PORTAGE_SCHEDULING_POLICY) update...
+                       addpredict /proc
+
+                       # Clear tons of conditions, since PGO is 
hardware-dependant.
+                       addpredict /dev
+               fi
+
+               if ! mountpoint -q /dev/shm ; then
+                       # If /dev/shm is not available, configure is known to 
fail with
+                       # a traceback report referencing 
/usr/lib/pythonN.N/multiprocessing/synchronize.py
+                       ewarn "/dev/shm is not mounted -- expect build 
failures!"
+               fi
+
+               # Google API keys (see 
http://www.chromium.org/developers/how-tos/api-keys)
+               # Note: These are for Gentoo Linux use ONLY. For your own 
distribution, please
+               # get your own set of keys.
+               if [[ -z "${MOZ_API_KEY_GOOGLE+set}" ]] ; then
+                       
MOZ_API_KEY_GOOGLE="AIzaSyDEAOvatFogGaPi0eTgsV_ZlEzx0ObmepsMzfAc"
+               fi
+
+               if [[ -z "${MOZ_API_KEY_LOCATION+set}" ]] ; then
+                       
MOZ_API_KEY_LOCATION="AIzaSyB2h2OuRgGaPicUgy5N-5hsZqiPW6sH3n_rptiQ"
+               fi
+
+               # Mozilla API keys (see 
https://location.services.mozilla.com/api)
+               # Note: These are for Gentoo Linux use ONLY. For your own 
distribution, please
+               # get your own set of keys.
+               if [[ -z "${MOZ_API_KEY_MOZILLA+set}" ]] ; then
+                       
MOZ_API_KEY_MOZILLA="edb3d487-3a84-46m0ap1e3-9dfd-92b5efaaa005"
+               fi
+
+               # Ensure we use C locale when building, bug #746215
+               export LC_ALL=C
+       fi
+
+       export use_lto
+
+       CONFIG_CHECK="~SECCOMP"
+       WARNING_SECCOMP="CONFIG_SECCOMP not set! This system will be unable to 
play DRM-protected content."
+       linux-info_pkg_setup
+}
+
+src_unpack() {
+       local _lp_dir="${WORKDIR}/language_packs"
+       local _src_file
+
+       if [[ ! -d "${_lp_dir}" ]] ; then
+               mkdir "${_lp_dir}" || die
+       fi
+
+       for _src_file in ${A} ; do
+               if [[ ${_src_file} == *.xpi ]]; then
+                       cp "${DISTDIR}/${_src_file}" "${_lp_dir}" || die 
"Failed to copy '${_src_file}' to '${_lp_dir}'!"
+               else
+                       unpack ${_src_file}
+               fi
+       done
+}
+
+src_prepare() {
+       if [[ ${use_lto} = "yes" ]]; then
+               rm -v 
"${WORKDIR}"/firefox-patches/*-LTO-Only-enable-LTO-*.patch || die
+       fi
+
+       # Workaround for bgo#917599
+       if has_version ">=dev-libs/icu-74.1" && use system-icu ; then
+               eapply 
"${WORKDIR}"/firefox-patches/*-bmo-1862601-system-icu-74.patch
+       fi
+       rm -v "${WORKDIR}"/firefox-patches/*-bmo-1862601-system-icu-74.patch || 
die
+
+       # Workaround for bgo#915651 on musl
+       if use elibc_glibc ; then
+               rm -v 
"${WORKDIR}"/firefox-patches/*bgo-748849-RUST_TARGET_override.patch || die
+       fi
+
+       eapply "${WORKDIR}/firefox-patches"
+
+       # Allow user to apply any additional patches without modifing ebuild
+       eapply_user
+
+       # Make cargo respect MAKEOPTS
+       export CARGO_BUILD_JOBS="$(makeopts_jobs)"
+
+       # Workaround for bgo#915651
+       if ! use elibc_glibc ; then
+               if use amd64 ; then
+                       export RUST_TARGET="x86_64-unknown-linux-musl"
+               elif use x86 ; then
+                       export RUST_TARGET="i686-unknown-linux-musl"
+               elif use arm64 ; then
+                       export RUST_TARGET="aarch64-unknown-linux-musl"
+               elif use ppc64 ; then
+                       export RUST_TARGET="powerpc64le-unknown-linux-musl"
+               else
+                       die "Unknown musl chost, please post your rustc -vV 
along with emerge --info on Gentoo's bug #915651"
+               fi
+       fi
+
+       # Make LTO respect MAKEOPTS
+       sed -i -e "s/multiprocessing.cpu_count()/$(makeopts_jobs)/" \
+               "${S}"/build/moz.configure/lto-pgo.configure || die "Failed 
sedding multiprocessing.cpu_count"
+
+       sed -i -e "s/multiprocessing.cpu_count()/$(makeopts_jobs)/" \
+               "${S}"/third_party/libwebrtc/build/toolchain/get_cpu_count.py 
|| die "Failed sedding multiprocessing.cpu_count"
+
+       sed -i -e "s/multiprocessing.cpu_count()/$(makeopts_jobs)/" \
+               
"${S}"/third_party/libwebrtc/build/toolchain/get_concurrent_links.py ||
+                       die "Failed sedding multiprocessing.cpu_count"
+
+       sed -i -e "s/multiprocessing.cpu_count()/$(makeopts_jobs)/" \
+               "${S}"/third_party/python/gyp/pylib/gyp/input.py || die "Failed 
sedding multiprocessing.cpu_count"
+
+       # sed-in toolchain prefix
+       sed -i \
+               -e "s/objdump/${CHOST}-objdump/" \
+               "${S}"/python/mozbuild/mozbuild/configure/check_debug_ranges.py 
|| die "sed failed to set toolchain prefix"
+
+       sed -i \
+               -e 's/ccache_stats = None/return None/' \
+               "${S}"/python/mozbuild/mozbuild/controller/building.py || die 
"sed failed to disable ccache stats call"
+
+       einfo "Removing pre-built binaries ..."
+
+       find "${S}"/third_party -type f \( -name '*.so' -o -name '*.o' \) 
-print -delete || die
+
+       # Clear checksums from cargo crates we've manually patched.
+       # moz_clear_vendor_checksums xyz
+
+       # Respect choice for "jumbo-build"
+       # Changing the value for FILES_PER_UNIFIED_FILE may not work, see 
#905431
+       if [[ -n ${FILES_PER_UNIFIED_FILE} ]] && use jumbo-build; then
+               local my_files_per_unified_file=${FILES_PER_UNIFIED_FILE:=16}
+               elog ""
+               elog "jumbo-build defaults modified to 
${my_files_per_unified_file}."
+               elog "if you get a build failure, try undefining 
FILES_PER_UNIFIED_FILE,"
+               elog "if that fails try -jumbo-build before opening a bug 
report."
+               elog ""
+
+               sed -i -e "s/\"FILES_PER_UNIFIED_FILE\", 
16/\"FILES_PER_UNIFIED_FILE\", "${my_files_per_unified_file}"/" \
+                       python/mozbuild/mozbuild/frontend/data.py ||
+                               die "Failed to adjust FILES_PER_UNIFIED_FILE in 
python/mozbuild/mozbuild/frontend/data.py"
+               sed -i -e "s/FILES_PER_UNIFIED_FILE = 6/FILES_PER_UNIFIED_FILE 
= "${my_files_per_unified_file}"/" \
+                       js/src/moz.build ||
+                               die "Failed to adjust FILES_PER_UNIFIED_FILE in 
js/src/moz.build"
+       fi
+
+       # Create build dir
+       BUILD_DIR="${WORKDIR}/${PN}_build"
+       mkdir -p "${BUILD_DIR}" || die
+
+       # Write API keys to disk
+       echo -n "${MOZ_API_KEY_GOOGLE//gGaPi/}" > "${S}"/api-google.key || die
+       echo -n "${MOZ_API_KEY_LOCATION//gGaPi/}" > "${S}"/api-location.key || 
die
+       echo -n "${MOZ_API_KEY_MOZILLA//m0ap1/}" > "${S}"/api-mozilla.key || die
+
+       xdg_environment_reset
+}
+
+src_configure() {
+       # Show flags set at the beginning
+       einfo "Current BINDGEN_CFLAGS:\t${BINDGEN_CFLAGS:-no value set}"
+       einfo "Current CFLAGS:\t\t${CFLAGS:-no value set}"
+       einfo "Current CXXFLAGS:\t\t${CXXFLAGS:-no value set}"
+       einfo "Current LDFLAGS:\t\t${LDFLAGS:-no value set}"
+       einfo "Current RUSTFLAGS:\t\t${RUSTFLAGS:-no value set}"
+
+       local have_switched_compiler=
+       if use clang; then
+               # Force clang
+               einfo "Enforcing the use of clang due to USE=clang ..."
+
+               local version_clang=$(clang --version 2>/dev/null | grep -F -- 
'clang version' | awk '{ print $3 }')
+               [[ -n ${version_clang} ]] && version_clang=$(ver_cut 1 
"${version_clang}")
+               [[ -z ${version_clang} ]] && die "Failed to read clang version!"
+
+               if tc-is-gcc; then
+                       have_switched_compiler=yes
+               fi
+
+               AR=llvm-ar
+               CC=${CHOST}-clang-${version_clang}
+               CXX=${CHOST}-clang++-${version_clang}
+               NM=llvm-nm
+               RANLIB=llvm-ranlib
+       elif ! use clang && ! tc-is-gcc ; then
+               # Force gcc
+               have_switched_compiler=yes
+               einfo "Enforcing the use of gcc due to USE=-clang ..."
+               AR=gcc-ar
+               CC=${CHOST}-gcc
+               CXX=${CHOST}-g++
+               NM=gcc-nm
+               RANLIB=gcc-ranlib
+       fi
+
+       if [[ -n "${have_switched_compiler}" ]] ; then
+               # Because we switched active compiler we have to ensure
+               # that no unsupported flags are set
+               strip-unsupported-flags
+       fi
+
+       # Ensure we use correct toolchain,
+       # AS is used in a non-standard way by upstream, #bmo1654031
+       export HOST_CC="$(tc-getBUILD_CC)"
+       export HOST_CXX="$(tc-getBUILD_CXX)"
+       export AS="$(tc-getCC) -c"
+
+       # Configuration tests expect llvm-readelf output, bug 913130
+       READELF="llvm-readelf"
+
+       tc-export CC CXX LD AR AS NM OBJDUMP RANLIB READELF PKG_CONFIG
+
+       # Pass the correct toolchain paths through cbindgen
+       if tc-is-cross-compiler ; then
+               export BINDGEN_CFLAGS="${SYSROOT:+--sysroot=${ESYSROOT}} 
--target=${CHOST} ${BINDGEN_CFLAGS-}"
+       fi
+
+       # Set MOZILLA_FIVE_HOME
+       export MOZILLA_FIVE_HOME="/usr/$(get_libdir)/${PN}"
+
+       # python/mach/mach/mixin/process.py fails to detect SHELL
+       export SHELL="${EPREFIX}/bin/bash"
+
+       # Set state path
+       export MOZBUILD_STATE_PATH="${BUILD_DIR}"
+
+       # Set MOZCONFIG
+       export MOZCONFIG="${S}/.mozconfig"
+
+       # Initialize MOZCONFIG
+       mozconfig_add_options_ac '' --enable-application=browser
+       mozconfig_add_options_ac '' --enable-project=browser
+
+       # Set Gentoo defaults
+       if use telemetry; then
+               export MOZILLA_OFFICIAL=1
+       fi
+
+       mozconfig_add_options_ac 'Gentoo default' \
+               --allow-addon-sideload \
+               --disable-cargo-incremental \
+               --disable-crashreporter \
+               --disable-disk-remnant-avoidance \
+               --disable-geckodriver \
+               --disable-install-strip \
+               --disable-legacy-profile-creation \
+               --disable-parental-controls \
+               --disable-strip \
+               --disable-tests \
+               --disable-updater \
+               --disable-wmf \
+               --enable-negotiateauth \
+               --enable-new-pass-manager \
+               --enable-official-branding \
+               --enable-release \
+               --enable-system-ffi \
+               --enable-system-pixman \
+               --enable-system-policies \
+               --host="${CBUILD:-${CHOST}}" \
+               --libdir="${EPREFIX}/usr/$(get_libdir)" \
+               --prefix="${EPREFIX}/usr" \
+               --target="${CHOST}" \
+               --without-ccache \
+               --without-wasm-sandboxed-libraries \
+               --with-intl-api \
+               --with-libclang-path="$(llvm-config --libdir)" \
+               --with-system-nspr \
+               --with-system-nss \
+               --with-system-zlib \
+               --with-toolchain-prefix="${CHOST}-" \
+               --with-unsigned-addon-scopes=app,system \
+               --x-includes="${ESYSROOT}/usr/include" \
+               --x-libraries="${ESYSROOT}/usr/$(get_libdir)"
+
+       # Set update channel
+       local update_channel=release
+       [[ -n ${MOZ_ESR} ]] && update_channel=esr
+       mozconfig_add_options_ac '' --update-channel=${update_channel}
+
+       if ! use x86 ; then
+               mozconfig_add_options_ac '' --enable-rust-simd
+       fi
+
+       # For future keywording: This is currently (97.0) only supported on:
+       # amd64, arm, arm64 & x86.
+       # Might want to flip the logic around if Firefox is to support more 
arches.
+       # bug 833001, bug 903411#c8
+       if use ppc64 || use riscv; then
+               mozconfig_add_options_ac '' --disable-sandbox
+       elif use valgrind; then
+               mozconfig_add_options_ac 'valgrind requirement' 
--disable-sandbox
+       else
+               mozconfig_add_options_ac '' --enable-sandbox
+       fi
+
+       # Enable JIT on riscv64 explicitly
+       # Can be removed once upstream enable it by default in the future.
+       use riscv && mozconfig_add_options_ac 'Enable JIT for RISC-V 64' 
--enable-jit
+
+       if [[ -s "${S}/api-google.key" ]] ; then
+               local key_origin="Gentoo default"
+               if [[ $(cat "${S}/api-google.key" | md5sum | awk '{ print $1 
}') != 709560c02f94b41f9ad2c49207be6c54 ]] ; then
+                       key_origin="User value"
+               fi
+
+               mozconfig_add_options_ac "${key_origin}" \
+                       
--with-google-safebrowsing-api-keyfile="${S}/api-google.key"
+       else
+               einfo "Building without Google API key ..."
+       fi
+
+       if [[ -s "${S}/api-location.key" ]] ; then
+               local key_origin="Gentoo default"
+               if [[ $(cat "${S}/api-location.key" | md5sum | awk '{ print $1 
}') != ffb7895e35dedf832eb1c5d420ac7420 ]] ; then
+                       key_origin="User value"
+               fi
+
+               mozconfig_add_options_ac "${key_origin}" \
+                       
--with-google-location-service-api-keyfile="${S}/api-location.key"
+       else
+               einfo "Building without Location API key ..."
+       fi
+
+       if [[ -s "${S}/api-mozilla.key" ]] ; then
+               local key_origin="Gentoo default"
+               if [[ $(cat "${S}/api-mozilla.key" | md5sum | awk '{ print $1 
}') != 3927726e9442a8e8fa0e46ccc39caa27 ]] ; then
+                       key_origin="User value"
+               fi
+
+               mozconfig_add_options_ac "${key_origin}" \
+                       --with-mozilla-api-keyfile="${S}/api-mozilla.key"
+       else
+               einfo "Building without Mozilla API key ..."
+       fi
+
+       mozconfig_use_with system-av1
+       mozconfig_use_with system-harfbuzz
+       mozconfig_use_with system-harfbuzz system-graphite2
+       mozconfig_use_with system-icu
+       mozconfig_use_with system-jpeg
+       mozconfig_use_with system-libevent
+       mozconfig_use_with system-libvpx
+       mozconfig_use_with system-png
+       mozconfig_use_with system-webp
+
+       mozconfig_use_enable dbus
+       mozconfig_use_enable libproxy
+       mozconfig_use_enable valgrind
+
+       use eme-free && mozconfig_add_options_ac '+eme-free' --disable-eme
+
+       if use hardened ; then
+               mozconfig_add_options_ac "+hardened" --enable-hardening
+               append-ldflags "-Wl,-z,relro -Wl,-z,now"
+
+               # Increase the FORTIFY_SOURCE value, #910071.
+               sed -i -e '/-D_FORTIFY_SOURCE=/s:2:3:' 
"${S}"/build/moz.configure/toolchain.configure || die
+       fi
+
+       local myaudiobackends=""
+       use jack && myaudiobackends+="jack,"
+       use sndio && myaudiobackends+="sndio,"
+       use pulseaudio && myaudiobackends+="pulseaudio,"
+       ! use pulseaudio && myaudiobackends+="alsa,"
+
+       mozconfig_add_options_ac '--enable-audio-backends' 
--enable-audio-backends="${myaudiobackends::-1}"
+
+       mozconfig_use_enable wifi necko-wifi
+
+       ! use jumbo-build && mozconfig_add_options_ac '--disable-unified-build' 
--disable-unified-build
+
+       if use X && use wayland ; then
+               mozconfig_add_options_ac '+x11+wayland' 
--enable-default-toolkit=cairo-gtk3-x11-wayland
+       elif ! use X && use wayland ; then
+               mozconfig_add_options_ac '+wayland' 
--enable-default-toolkit=cairo-gtk3-wayland-only
+       else
+               mozconfig_add_options_ac '+x11' 
--enable-default-toolkit=cairo-gtk3-x11-only
+       fi
+
+       if [[ ${use_lto} = "yes" ]] ; then
+               if use clang ; then
+                       # Upstream only supports lld or mold when using clang.
+                       if tc-ld-is-mold ; then
+                               # mold expects the -flto line from *FLAGS 
configuration, bgo#923119
+                               append-ldflags "-flto=thin"
+                               mozconfig_add_options_ac "using ld=mold due to 
system selection" --enable-linker=mold
+                       else
+                               mozconfig_add_options_ac "forcing ld=lld due to 
USE=clang and USE=lto" --enable-linker=lld
+                       fi
+
+                       mozconfig_add_options_ac '+lto' --enable-lto=cross
+
+               else
+                       # ThinLTO is currently broken, see bmo#1644409.
+                       # mold does not support gcc+lto combination.
+                       mozconfig_add_options_ac '+lto' --enable-lto=full
+                       mozconfig_add_options_ac "linker is set to bfd" 
--enable-linker=bfd
+               fi
+
+               if use pgo ; then
+                       mozconfig_add_options_ac '+pgo' MOZ_PGO=1
+
+                       if use clang ; then
+                               # Used in build/pgo/profileserver.py
+                               export LLVM_PROFDATA="llvm-profdata"
+                       fi
+               fi
+       else
+               # Avoid auto-magic on linker
+               if use clang ; then
+                       # lld is upstream's default
+                       if tc-ld-is-mold ; then
+                               mozconfig_add_options_ac "using ld=mold due to 
system selection" --enable-linker=mold
+                       else
+                               mozconfig_add_options_ac "forcing ld=lld due to 
USE=clang" --enable-linker=lld
+                       fi
+
+               else
+                       if tc-ld-is-mold ; then
+                               mozconfig_add_options_ac "using ld=mold due to 
system selection" --enable-linker=mold
+                       else
+                               mozconfig_add_options_ac "linker is set to bfd 
due to USE=-clang" --enable-linker=bfd
+                       fi
+               fi
+       fi
+
+       mozconfig_use_enable debug
+       if use debug ; then
+               mozconfig_add_options_ac '+debug' --disable-optimize
+               mozconfig_add_options_ac '+debug' --enable-jemalloc
+               mozconfig_add_options_ac '+debug' --enable-real-time-tracing
+       else
+               mozconfig_add_options_ac 'Gentoo defaults' 
--disable-real-time-tracing
+
+               if is-flag '-g*' ; then
+                       if use clang ; then
+                               mozconfig_add_options_ac 'from CFLAGS' 
--enable-debug-symbols=$(get-flag '-g*')
+                       else
+                               mozconfig_add_options_ac 'from CFLAGS' 
--enable-debug-symbols
+                       fi
+               else
+                       mozconfig_add_options_ac 'Gentoo default' 
--disable-debug-symbols
+               fi
+
+               if is-flag '-O0' ; then
+                       mozconfig_add_options_ac "from CFLAGS" 
--enable-optimize=-O0
+               elif is-flag '-O4' ; then
+                       mozconfig_add_options_ac "from CFLAGS" 
--enable-optimize=-O4
+               elif is-flag '-O3' ; then
+                       mozconfig_add_options_ac "from CFLAGS" 
--enable-optimize=-O3
+               elif is-flag '-O1' ; then
+                       mozconfig_add_options_ac "from CFLAGS" 
--enable-optimize=-O1
+               elif is-flag '-Os' ; then
+                       mozconfig_add_options_ac "from CFLAGS" 
--enable-optimize=-Os
+               else
+                       mozconfig_add_options_ac "Gentoo default" 
--enable-optimize=-O2
+               fi
+       fi
+
+       # Debug flag was handled via configure
+       filter-flags '-g*'
+
+       # Optimization flag was handled via configure
+       filter-flags '-O*'
+
+       # elf-hack
+       # Filter "-z,pack-relative-relocs" and let the build system handle it 
instead.
+       if use amd64 || use x86 ; then
+               filter-flags "-z,pack-relative-relocs"
+
+               if tc-ld-is-mold ; then
+                       # relr-elf-hack is currently broken with mold, 
bgo#916259
+                       mozconfig_add_options_ac 'disable elf-hack with mold 
linker' --disable-elf-hack
+               else
+                       mozconfig_add_options_ac 'relr elf-hack' 
--enable-elf-hack=relr
+               fi
+       elif use ppc64 || use riscv ; then
+               # '--disable-elf-hack' is not recognized on ppc64/riscv,
+               # see bgo #917049, #930046
+               :;
+       else
+               mozconfig_add_options_ac 'disable elf-hack on non-supported 
arches' --disable-elf-hack
+       fi
+
+       if ! use elibc_glibc; then
+               mozconfig_add_options_ac '!elibc_glibc' --disable-jemalloc
+       fi
+
+       if use valgrind; then
+               mozconfig_add_options_ac 'valgrind requirement' 
--disable-jemalloc
+       fi
+
+       # System-av1 fix
+       use system-av1 && append-ldflags "-Wl,--undefined-version"
+
+       # Make revdep-rebuild.sh happy; Also required for musl
+       append-ldflags -Wl,-rpath="${MOZILLA_FIVE_HOME}",--enable-new-dtags
+
+       # Pass $MAKEOPTS to build system
+       export MOZ_MAKE_FLAGS="${MAKEOPTS}"
+
+       # Use system's Python environment
+       export PIP_NETWORK_INSTALL_RESTRICTED_VIRTUALENVS=mach
+
+       export MACH_BUILD_PYTHON_NATIVE_PACKAGE_SOURCE="none"
+
+       if ! use telemetry; then
+               mozconfig_add_options_mk '-telemetry setting' 
"MOZ_CRASHREPORTER=0"
+               mozconfig_add_options_mk '-telemetry setting' 
"MOZ_DATA_REPORTING=0"
+               mozconfig_add_options_mk '-telemetry setting' 
"MOZ_SERVICES_HEALTHREPORT=0"
+               mozconfig_add_options_mk '-telemetry setting' 
"MOZ_TELEMETRY_REPORTING=0"
+       fi
+
+       # Disable notification when build system has finished
+       export MOZ_NOSPAM=1
+
+       # Portage sets XARGS environment variable to "xargs -r" by default which
+       # breaks build system's check_prog() function which doesn't support 
arguments
+       mozconfig_add_options_ac 'Gentoo default' 
"XARGS=${EPREFIX}/usr/bin/xargs"
+
+       # Set build dir
+       mozconfig_add_options_mk 'Gentoo default' "MOZ_OBJDIR=${BUILD_DIR}"
+
+       # Show flags we will use
+       einfo "Build BINDGEN_CFLAGS:\t${BINDGEN_CFLAGS:-no value set}"
+       einfo "Build CFLAGS:\t\t${CFLAGS:-no value set}"
+       einfo "Build CXXFLAGS:\t\t${CXXFLAGS:-no value set}"
+       einfo "Build LDFLAGS:\t\t${LDFLAGS:-no value set}"
+       einfo "Build RUSTFLAGS:\t\t${RUSTFLAGS:-no value set}"
+
+       # Handle EXTRA_CONF and show summary
+       local ac opt hash reason
+
+       # Apply EXTRA_ECONF entries to $MOZCONFIG
+       if [[ -n ${EXTRA_ECONF} ]] ; then
+               IFS=\! read -a ac <<<${EXTRA_ECONF// --/\!}
+               for opt in "${ac[@]}"; do
+                       mozconfig_add_options_ac "EXTRA_ECONF" --${opt#--}
+               done
+       fi
+
+       echo
+       echo "=========================================================="
+       echo "Building ${PF} with the following configuration"
+       grep ^ac_add_options "${MOZCONFIG}" | while read ac opt hash reason; do
+               [[ -z ${hash} || ${hash} == \# ]] \
+                       || die "error reading mozconfig: ${ac} ${opt} ${hash} 
${reason}"
+               printf "    %-30s  %s\n" "${opt}" "${reason:-mozilla.org 
default}"
+       done
+       echo "=========================================================="
+       echo
+
+       if use valgrind; then
+               sed -i -e 's/--enable-optimize=-O[0-9s]/--enable-optimize="-g 
-O2"/' .mozconfig || die
+       fi
+
+       ./mach configure || die
+}
+
+src_compile() {
+       local virtx_cmd=
+
+       if [[ ${use_lto} == "yes" ]] && tc-ld-is-mold; then
+               # increase ulimit with mold+lto, bugs #892641, #907485
+               if ! ulimit -n 16384 1>/dev/null 2>&1 ; then
+                       ewarn "Unable to modify ulimits - building with 
mold+lto might fail due to low ulimit -n resources."
+                       ewarn "Please see bugs #892641 & #907485."
+               else
+                       ulimit -n 16384
+               fi
+       fi
+
+       if use pgo; then
+               # Reset and cleanup environment variables used by GNOME/XDG
+               gnome2_environment_reset
+
+               addpredict /root
+
+               if ! use X; then
+                       virtx_cmd=virtwl
+               else
+                       virtx_cmd=virtx
+               fi
+       fi
+
+       if ! use X; then
+               local -x GDK_BACKEND=wayland
+       else
+               local -x GDK_BACKEND=x11
+       fi
+
+       ${virtx_cmd} ./mach build --verbose || die
+}
+
+src_install() {
+       # xpcshell is getting called during install
+       pax-mark m \
+               "${BUILD_DIR}"/dist/bin/xpcshell \
+               "${BUILD_DIR}"/dist/bin/${PN} \
+               "${BUILD_DIR}"/dist/bin/plugin-container
+
+       DESTDIR="${D}" ./mach install || die
+
+       # Upstream cannot ship symlink but we can (bmo#658850)
+       rm "${ED}${MOZILLA_FIVE_HOME}/${PN}-bin" || die
+       dosym ${PN} ${MOZILLA_FIVE_HOME}/${PN}-bin
+
+       # Don't install llvm-symbolizer from sys-devel/llvm package
+       if [[ -f "${ED}${MOZILLA_FIVE_HOME}/llvm-symbolizer" ]] ; then
+               rm -v "${ED}${MOZILLA_FIVE_HOME}/llvm-symbolizer" || die
+       fi
+
+       # Install policy (currently only used to disable application updates)
+       insinto "${MOZILLA_FIVE_HOME}/distribution"
+       newins "${FILESDIR}"/distribution.ini distribution.ini
+       newins "${FILESDIR}"/disable-auto-update.policy.json policies.json
+
+       # Install system-wide preferences
+       local PREFS_DIR="${MOZILLA_FIVE_HOME}/browser/defaults/preferences"
+       insinto "${PREFS_DIR}"
+       newins "${FILESDIR}"/gentoo-default-prefs.js gentoo-prefs.js
+
+       local GENTOO_PREFS="${ED}${PREFS_DIR}/gentoo-prefs.js"
+
+       # Set dictionary path to use system hunspell
+       cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to set 
spellchecker.dictionary_path pref"
+       pref("spellchecker.dictionary_path", "${EPREFIX}/usr/share/myspell");
+       EOF
+
+       # Force hwaccel prefs if USE=hwaccel is enabled
+       if use hwaccel ; then
+               cat "${FILESDIR}"/gentoo-hwaccel-prefs.js-r2 \
+               >>"${GENTOO_PREFS}" \
+               || die "failed to add prefs to force hardware-accelerated 
rendering to all-gentoo.js"
+
+               if use wayland; then
+                       cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to set 
hwaccel wayland prefs"
+                       pref("gfx.x11-egl.force-enabled", false);
+                       EOF
+               else
+                       cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to set 
hwaccel x11 prefs"
+                       pref("gfx.x11-egl.force-enabled", true);
+                       EOF
+               fi
+
+               # Install the vaapitest binary on supported arches (122.0 
supports all platforms, bmo#1865969)
+               exeinto "${MOZILLA_FIVE_HOME}"
+               doexe "${BUILD_DIR}"/dist/bin/vaapitest
+
+               # Install the v4l2test on supported arches (+ arm, + riscv64 
when keyworded)
+               if use arm64 ; then
+                       exeinto "${MOZILLA_FIVE_HOME}"
+                       doexe "${BUILD_DIR}"/dist/bin/v4l2test
+               fi
+       fi
+
+       if ! use gmp-autoupdate ; then
+               local plugin
+               for plugin in "${MOZ_GMP_PLUGIN_LIST[@]}" ; do
+                       einfo "Disabling auto-update for ${plugin} plugin ..."
+                       cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to 
disable autoupdate for ${plugin} media plugin"
+                       pref("media.${plugin}.autoupdate", false);
+                       EOF
+               done
+       fi
+
+       # Force the graphite pref if USE=system-harfbuzz is enabled, since the 
pref cannot disable it
+       if use system-harfbuzz ; then
+               cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to set 
gfx.font_rendering.graphite.enabled pref"
+               sticky_pref("gfx.font_rendering.graphite.enabled", true);
+               EOF
+       fi
+
+       # Add telemetry config prefs, just in case something happens in future 
and telemetry build
+       # options stop working.
+       if ! use telemetry ; then
+               cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to set telemetry 
prefs"
+               sticky_pref("toolkit.telemetry.dap_enabled", false);
+               pref("toolkit.telemetry.dap_helper", "");
+               pref("toolkit.telemetry.dap_leader", "");
+               EOF
+       fi
+
+       # Install language packs
+       local langpacks=( $(find "${WORKDIR}/language_packs" -type f -name 
'*.xpi') )
+       if [[ -n "${langpacks}" ]] ; then
+               moz_install_xpi "${MOZILLA_FIVE_HOME}/distribution/extensions" 
"${langpacks[@]}"
+       fi
+
+       # Install icons
+       local icon_srcdir="${S}/browser/branding/official"
+       local icon_symbolic_file="${FILESDIR}/icon/firefox-symbolic.svg"
+
+       insinto /usr/share/icons/hicolor/symbolic/apps
+       newins "${icon_symbolic_file}" ${PN}-symbolic.svg
+
+       local icon size
+       for icon in "${icon_srcdir}"/default*.png ; do
+               size=${icon%.png}
+               size=${size##*/default}
+
+               if [[ ${size} -eq 48 ]] ; then
+                       newicon "${icon}" ${PN}.png
+               fi
+
+               newicon -s ${size} "${icon}" ${PN}.png
+       done
+
+       # Install menu
+       local app_name="Mozilla ${MOZ_PN^}"
+       local desktop_file="${FILESDIR}/icon/${PN}-r3.desktop"
+       local exec_command="${PN}"
+       local icon="${PN}"
+       local use_wayland="false"
+
+       if [[ -n ${MOZ_ESR} ]] ; then
+               local desktop_filename="${PN}-esr.desktop"
+       else
+               local desktop_filename="${PN}.desktop"
+       fi
+
+       if use wayland ; then
+               use_wayland="true"
+       fi
+
+       cp "${desktop_file}" "${WORKDIR}/${PN}.desktop-template" || die
+
+       sed -i \
+               -e "s:@NAME@:${app_name}:" \
+               -e "s:@EXEC@:${exec_command}:" \
+               -e "s:@ICON@:${icon}:" \
+               "${WORKDIR}/${PN}.desktop-template" || die
+
+       newmenu "${WORKDIR}/${PN}.desktop-template" "${desktop_filename}"
+
+       rm "${WORKDIR}/${PN}.desktop-template" || die
+
+       if use gnome-shell ; then
+               # Install search provider for Gnome
+               insinto /usr/share/gnome-shell/search-providers/
+               doins 
browser/components/shell/search-provider-files/org.mozilla.firefox.search-provider.ini
+
+               insinto /usr/share/dbus-1/services/
+               doins 
browser/components/shell/search-provider-files/org.mozilla.firefox.SearchProvider.service
+
+               # Toggle between rapid and esr desktop file names
+               sed -e "s/firefox.desktop/${desktop_filename}/g" \
+                       -i 
"${ED}/usr/share/gnome-shell/search-providers/org.mozilla.firefox.search-provider.ini"
 ||
+                               die "Failed to sed 
org.mozilla.firefox.search-provider.ini file."
+
+               # Make the dbus service aware of a previous session, bgo#939196
+               sed -e \
+                       
"s/Exec=\/usr\/bin\/firefox/Exec=\/usr\/$(get_libdir)\/firefox\/firefox 
--dbus-service \/usr\/bin\/firefox/g" \
+                       -i 
"${ED}/usr/share/dbus-1/services/org.mozilla.firefox.SearchProvider.service" ||
+                               die "Failed to sed 
org.mozilla.firefox.SearchProvider.service dbus file"
+
+               # Update prefs to enable Gnome search provider
+               cat >>"${GENTOO_PREFS}" <<-EOF || die "failed to enable 
gnome-search-provider via prefs"
+               pref("browser.gnome-search-provider.enabled", true);
+               EOF
+       fi
+
+       # Install wrapper script
+       [[ -f "${ED}/usr/bin/${PN}" ]] && rm "${ED}/usr/bin/${PN}"
+       newbin "${FILESDIR}/${PN}-r1.sh" ${PN}
+
+       # Update wrapper
+       sed -i \
+               -e "s:@PREFIX@:${EPREFIX}/usr:" \
+               -e "s:@DEFAULT_WAYLAND@:${use_wayland}:" \
+               "${ED}/usr/bin/${PN}" || die
+
+       readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+       xdg_pkg_postinst
+
+       if ! use gmp-autoupdate ; then
+               elog "USE='-gmp-autoupdate' has disabled the following plugins 
from updating or"
+               elog "installing into new profiles:"
+               local plugin
+               for plugin in "${MOZ_GMP_PLUGIN_LIST[@]}" ; do
+                       elog "\t ${plugin}"
+               done
+               elog
+       fi
+
+       # bug 835078
+       if use hwaccel && has_version "x11-drivers/xf86-video-nouveau"; then
+               ewarn "You have nouveau drivers installed in your system and 
'hwaccel' "
+               ewarn "enabled for Firefox. Nouveau / your GPU might not 
support the "
+               ewarn "required EGL, so either disable 'hwaccel' or try the 
workaround "
+               ewarn "explained in https://bugs.gentoo.org/835078#c5 if 
Firefox crashes."
+       fi
+
+       readme.gentoo_print_elog
+
+       optfeature_header "Optional programs for extra features:"
+       optfeature "desktop notifications" x11-libs/libnotify
+       optfeature "fallback mouse cursor theme e.g. on WMs" 
gnome-base/gsettings-desktop-schemas
+       optfeature "screencasting with pipewire" sys-apps/xdg-desktop-portal
+       if use hwaccel && has_version "x11-drivers/nvidia-drivers"; then
+               optfeature "hardware acceleration with NVIDIA cards" 
media-libs/nvidia-vaapi-driver
+       fi
+
+       if ! has_version "sys-libs/glibc"; then
+               elog
+               elog "glibc not found! You won't be able to play DRM content."
+               elog "See Gentoo bug #910309 or upstream bug #1843683."
+               elog
+       fi
+}
-- 
2.47.0



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