4 files changed, 423 insertions, 2 deletions
diff --git a/dev-lang/Manifest.gz b/dev-lang/Manifest.gz
index d60d9a1923b4..29fe58d88a55 100644
--- a/dev-lang/Manifest.gz
+++ b/dev-lang/Manifest.gz
diff --git a/dev-lang/spidermonkey/Manifest b/dev-lang/spidermonkey/Manifest
index 0120e4e8a4f9..ea8afb2e6c5f 100644
--- a/dev-lang/spidermonkey/Manifest
+++ b/dev-lang/spidermonkey/Manifest
@@ -1,10 +1,12 @@
 AUX spidermonkey-102-known-test-failures.txt 6640 BLAKE2B 3158083ec95cfcdb552a077562a0851809c7ffbd7dc346e346eda73035ecdf97bda2bc87a9eb84382e42ff49d969c4b37e5e83d7d339511f3f52782e4d0478c9 SHA512 5d57efcf3fee66c6e31a6c5b6fcd3f1f4a9ca2cf51caa324b25be4695709637e6028a980482f9532749af9006844320c117627dd748848f5c81d0936d72b60a3
 AUX spidermonkey-91-known-test-failures.txt 10531 BLAKE2B 905a76f6c4b6a00dd7ffe0eff1c92c467bd48105ab612272fa5768f661fafffa3db691882674816ac38039fc74a97e2d7ca1b87b3d87966e3b35d7e6d911401f SHA512 3439eca54200c638f80f23762d358f47c43b0a9b522e72c023e158cb310d15e16f1b6c5fb95f8e4f1fdaf32cf6b3d2ca7e1d0d44fc437873ba23695de539704c
+DIST firefox-102.10.0esr.source.tar.xz 479026088 BLAKE2B b4d8eaa6d72b009d12b435781c360f043bca7554d8b069b8d858399ece03f20703d7e36427a3f92d0b801a94b1c3f132904f21e51ba4118116bbfa4e5668d651 SHA512 f2b53c35bdd22a3de6f32699b832babcbf499667197c02dd50cf0b6cd956e0f4471f420938c2ab72f0a0686ed99fe74e3184afe9b5f7169130879b8f8fd99f0b
 DIST firefox-102.6.0esr.source.tar.xz 478856656 BLAKE2B 2094bbb3ba00fc2d726a620e9946ca1ec98ad4c930ed611486ac92a7c74aa84da9c15b1353603eb36ce0a9098bd1f311dea2bea255f2bb6dd06fafbc7808d52c SHA512 c0f0160bea612d0ae74c29dd44beb7fd9a1c292694b8cd5c4faf2e54feb5c27684eee821b67dd40df714d69866a4e3a8b19e22182d9bc3023050d2d96b02d308
 DIST firefox-102.8.0esr.source.tar.xz 479172816 BLAKE2B 0b4cbf11028abc73a8479fb94670e98f0a293fc12381b1eccbadd64a33db068ab7434357abbe3ce0773382c7c90b8fe4d2258cc55abe8bdc2f551bba1dc2b797 SHA512 93ea87997b66088b94c6e943b6e99e9a71d1908444d096c0f65b6876d2c584e55ff6120266f3851f986b664bd1f12fa31206b03479c2b751e7c3ca097ac14275
 DIST firefox-102.9.0esr.source.tar.xz 484308672 BLAKE2B dffd3928c268562802b9d9788cc83203ca932c85758b822c344e54259d81ef84668231149f3452cec3c2bf32c654db321303bcb9f81f8ccaac477ad2499ce346 SHA512 3923212ce4b7d1f589129025961ff1b380b8aaf1dd074674f3bd63cf14e9a44ff051bda556b7796c25634e153de00ce62243ece15a520f63dd0791a19b2a6685
 DIST firefox-102esr-patches-07j.tar.xz 23012 BLAKE2B 41b706f5ae8695ddd33e971cf1aa99317382a57618cf19163c5bca09ed5d430dba672ac51b7ab3072360452cc89ac50397bb7992882a61a3adda37022239e654 SHA512 7048353ea5504e34d9d3950e3e5e3125f631f95269d5c9e422ca052173a316718fdd4b57ea7980a452139b1192805cb598f47f398fb148a426a85a5e979c6cdd
 DIST firefox-102esr-patches-09j.tar.xz 20236 BLAKE2B 35431fbc56c5470dac2839fd218d2a589558cf964eab2373f2db7a01e6e0dfee329b1b63f6a421bfd4c9bf8c3ed9877067cdc462742a1cc59d78d1d10264ebac SHA512 7fb82ff3ef2cbca339ab05ac07f0409088a87dfe37314d31d441bae1beb181cbea799dcd63dd560d0ccde24b665379118e5e99a1c1a2385d859378901593089b
+DIST firefox-102esr-patches-10j.tar.xz 21744 BLAKE2B 326f206dfcd5b6ea2f06f5f537505e23d358f6d7930f7e72fd8e54af88d97172170999c246af888278143810df42be9414541e47feb48b60732565a4ee38579e SHA512 5efa50b221abedbb84c1b3d19d8ac089ac5752448e8c90c6aed9f43bf3eee876b7e7050a1678bca65f6b23734c4945b016bf059a3921ad7290b0150538111bbd
 DIST firefox-78.15.0esr.source.tar.xz 330819568 BLAKE2B dc8785613c2f72c55d484642c89c2545765a9efbd609bc7c2cf57b4a3a06a2ea22e6959e42b5b8af867db782e8b2097a67dec858796b744e47008a8e575e2316 SHA512 ac3de735b246ce4f0e1619cd2664321ffa374240ce6843e785d79a350dc30c967996bbcc5e3b301cb3d822ca981cbea116758fc4122f1738d75ddfd1165b6378
 DIST firefox-78esr-patches-19.tar.xz 88424 BLAKE2B fdc7bf8f28b3e799551a70f1cec7a695f52c4712f3b28733648fcd7dac5a599613f4c3d2cfa169266dc62b65619b7f28c0e06d32317adb8ec0056ca79c87e9f6 SHA512 3c81dadc9bf74207c4e361605127ef6141d77700c5c54f1f9cd5ad3be13df9f73c6eec2f51d779558e4bdad1e7395c6aa8943a93415bd1786d461042bc03550a
 DIST firefox-91.13.0esr.source.tar.xz 380053584 BLAKE2B 75d0daa512b3a2d41974a0169778be9ef19a100de2bd382add9831860ca93976585a41e760b6a7ec753268fb78f9f61049780fa7961834248bc8157cfdcc2827 SHA512 38b4cc52de21e76d6061e6ba175e1cbfd888a16070aa951f5a44283f2db9d7e94f2504621f0da78feac6e71491a6d0e7038f63dd0ae112dcad700eb02e9aa516
@@ -13,9 +15,10 @@ DIST spidermonkey-102-patches-04j.tar.xz 3996 BLAKE2B 468697521adacc5d647b04f222
 DIST spidermonkey-102-patches-05j.tar.xz 4596 BLAKE2B 215b770bbdf17973d7b3fd1df6cee9647459d2b02b0be5bdb289d457e5dbdb06ceac7a3082fc2f5836e991a4ac4486d73330b0276a466b5c528dab226a27829c SHA512 d2b8e32dac87d60a00fd93479dc34d8adab4feec24a38591cebeb4cf271aa2fd964f4dc26e67ebfb127a47bc8f684d50b32b2cff18ed5286701a04a289058185
 DIST spidermonkey-78-patches-05.tar.xz 4480 BLAKE2B aaba61d1ee72496ef02463333a9fa9cc18b873953d1875411667fec73cd9f485224371cde65be0506fa3853368a0885cba3a109e052a3408e7d0ff22a8066e22 SHA512 c2522081bcc58d6f517320c344747403e1525c887b2f7ad6d23df76a954cdac1660d7fe5e2ae7a040763d6a6e0e6eaf127c8bffbd9d3ac0283d19d0d6f1f5edd
 DIST spidermonkey-91-patches-05j.tar.xz 5964 BLAKE2B 13f09f77bf16bc61b03c9488b7ab521552e179bfb123e390d0883ea4a3f55e87e0a5d5a246f31a9ddc35f212ea84655fe9d4fc364bbdddc1aac421eb28dbe41f SHA512 4d9cf21b712234ff6a18554a010badd756028e6147597040c423f7e27d260e3984938f956d9bc3572557163a144345ed28d9f88e459fc959aaa6fd448f6deab7
+EBUILD spidermonkey-102.10.0.ebuild 11178 BLAKE2B 310df370c261b46a364903deb46c5d2c41809c2c074da53544c25ebc46c08a35d2a8e732548878feb44f0dc905a7e0da928c6c7e8f31258330e4d3fb23589cd5 SHA512 fc5882e8a20d2c899ba45bac080f42e39d6e32a04f9175fac4487aedc96decc5f5da11d19633502bc4469d599597aca167c486dfa6b45221d8d2d00a7394150a
 EBUILD spidermonkey-102.6.0.ebuild 11294 BLAKE2B 03ab2e77a5b35ae1daa33c958ad2318d72d7a8a0ad75ee6f63eb6b72ee1b3c35ed6ec9c21dcd1f85fb477d71c5d5a62ae18db95aec1c62dc04ed4f85b93471d5 SHA512 4028151d1aa5a46d365250ecdf513265f3c784c03bddf1250cbeeefd25bb9c5df3f5baeac1a5dd62e3ae3b860659e3ed750f8d5003e580bcbf0480b7a2168b94
 EBUILD spidermonkey-102.8.0.ebuild 11173 BLAKE2B 31a73de3f92ee13786d26b9d257333abfb665e7c172b6bcaeaeb75ffc71993781d2a88f0e3d44d3347b5a2ab2c24295c55839f273d8d2079314a47427795c655 SHA512 0c63f2cfa3c78e53810ace109b06412bd0b93e8b6b85a69b448e18f9c0fe12c4ad85ecf3e3c13b1f2ab98f2f1ecb1d2f8cf7ef9e8c4d002d51fa3d5a1e7fc601
-EBUILD spidermonkey-102.9.0.ebuild 11178 BLAKE2B feb1881b0572a52d97a60617ec84b8e52ccbd3c94f0ea436b771e0e739fb0a86a67140409dbf9d86d61f2a82785bf58b69152da028510f9554c37140fa9ad67c SHA512 dcb7168906827dc9addecdb1982f6a236b30db612bbceed3564daa10e2dac40be5a673f6d3d6b1260f2bcb7ba0134bc989c95b7f9eda342cf1e220e0e0514e0d
+EBUILD spidermonkey-102.9.0.ebuild 11513 BLAKE2B 795b6aad193494239acae2bcff42959697ab7c8166c8718281a5a8f55c759a5400bbc9d414a8e7d8be4c9ee77b6de6d96d0807b60bba615e4dd815e900961cd9 SHA512 f6eee807acd0e11620f8130254ac3721c14c73e8dab0e2d6eeec81e6ac142017cfd5919e7c0873cb310ed736d2299cd5f45ad1c892af9b454d71cc14c989c6de
 EBUILD spidermonkey-78.15.0.ebuild 13112 BLAKE2B 6d9174edbdffd08974c015b2e8d2f26ae386422e732de28bd9f8c5f58755e3785d18025d508a795a78210e99035929ba42b72b7a0182110552d2ea5c24573643 SHA512 cda61f308cf4d6a67bd6f2510a430643da4629cc7622f9f0897102091862a6064fe3bae5eac7fb1382f07c7a6a61e889135a810f983cc57f7cd08842d8a79454
 EBUILD spidermonkey-91.13.0-r1.ebuild 15292 BLAKE2B f30309c1590ed7ba56c2563bc20163781a04cb45d0ad5dea46442709d505d30f98f6f9d8c6fe1ba115c1e3895f44cd05d9e634e635c669e43f71e4a06283a8b3 SHA512 affe566c6ac89baef29b5b610a0d4db8fb98a42ce040eff5f30e6c0217adbd40129d0280589bef63c0a788364285d8921e7dda05d4a1f1d2c179e6cd3b14cabf
 MISC metadata.xml 575 BLAKE2B e7f3717d36ba723ed41a6dc5adc798390ec98cbd018447b52b4b59a692cea93a4430524a3d545649e08057210e3d5427943d15e97aa5e33da859d8b8e352274d SHA512 9fc1545caf99002b574a675fdf8b8ee0cfa2791129109dcb40e01e658d3de283848d63958876208ff1c384ca6041b20d4e6d34b84a445521df3e240c9ea9dfe2
diff --git a/dev-lang/spidermonkey/spidermonkey-102.10.0.ebuild b/dev-lang/spidermonkey/spidermonkey-102.10.0.ebuild
new file mode 100644
index 000000000000..ac84d68cfa80
--- /dev/null
+++ b/dev-lang/spidermonkey/spidermonkey-102.10.0.ebuild
@@ -0,0 +1,411 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="8"
+
+# Patch version
+FIREFOX_PATCHSET="firefox-102esr-patches-10j.tar.xz"
+SPIDERMONKEY_PATCHSET="spidermonkey-102-patches-05j.tar.xz"
+
+LLVM_MAX_SLOT=15
+
+PYTHON_COMPAT=( python3_{9..11} )
+PYTHON_REQ_USE="ssl,xml(+)"
+
+WANT_AUTOCONF="2.1"
+
+inherit autotools check-reqs flag-o-matic llvm multiprocessing prefix python-any-r1 toolchain-funcs
+
+MY_PN="mozjs"
+MY_PV="${PV/_pre*}" # Handle Gentoo pre-releases
+
+MY_MAJOR=$(ver_cut 1)
+
+MOZ_ESR=yes
+
+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"
+fi
+
+MOZ_PN="firefox"
+MOZ_P="${MOZ_PN}-${MOZ_PV}"
+MOZ_PV_DISTFILES="${MOZ_PV}${MOZ_PV_SUFFIX}"
+MOZ_P_DISTFILES="${MOZ_PN}-${MOZ_PV_DISTFILES}"
+
+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,whissi}/mozilla/patchsets/${FIREFOX_PATCHSET}
+	https://dev.gentoo.org/~{juippis,whissi}/mozilla/patchsets/${SPIDERMONKEY_PATCHSET}
+)
+
+SRC_URI="${MOZ_SRC_BASE_URI}/source/${MOZ_P}.source.tar.xz -> ${MOZ_P_DISTFILES}.source.tar.xz
+	${PATCH_URIS[@]}"
+
+DESCRIPTION="SpiderMonkey is Mozilla's JavaScript engine written in C and C++"
+HOMEPAGE="https://spidermonkey.dev https://firefox-source-docs.mozilla.org/js/index.html "
+
+KEYWORDS="~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+
+SLOT="$(ver_cut 1)"
+LICENSE="MPL-2.0"
+IUSE="clang cpu_flags_arm_neon debug +jit lto test"
+
+#RESTRICT="test"
+RESTRICT="!test? ( test )"
+
+BDEPEND="${PYTHON_DEPS}
+	|| (
+		(
+			sys-devel/llvm:15
+			clang? (
+				sys-devel/clang:15
+				virtual/rust:0/llvm-15
+				lto? ( sys-devel/lld:15 )
+			)
+		)
+		(
+			sys-devel/llvm:14
+			clang? (
+				sys-devel/clang:14
+				virtual/rust:0/llvm-14
+				lto? ( sys-devel/lld:14 )
+			)
+		)
+	)
+	!clang? ( virtual/rust )
+	virtual/pkgconfig
+	test? (
+		$(python_gen_any_dep 'dev-python/six[${PYTHON_USEDEP}]')
+	)"
+DEPEND=">=dev-libs/icu-71.1:=
+	dev-libs/nspr
+	sys-libs/readline:0=
+	sys-libs/zlib"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/firefox-${MY_PV}/js/src"
+
+llvm_check_deps() {
+	if ! has_version -b "sys-devel/llvm:${LLVM_SLOT}" ; then
+		einfo "sys-devel/llvm:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+		return 1
+	fi
+
+	if use clang ; then
+		if ! has_version -b "sys-devel/clang:${LLVM_SLOT}" ; then
+			einfo "sys-devel/clang:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if ! has_version -b "virtual/rust:0/llvm-${LLVM_SLOT}" ; then
+			einfo "virtual/rust:0/llvm-${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if use lto ; then
+			if ! has_version -b "sys-devel/lld:${LLVM_SLOT}" ; then
+				einfo "sys-devel/lld:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+				return 1
+			fi
+		fi
+	fi
+
+	einfo "Using LLVM slot ${LLVM_SLOT} to build" >&2
+}
+
+python_check_deps() {
+	if use test ; then
+		python_has_version "dev-python/six[${PYTHON_USEDEP}]"
+	fi
+}
+
+pkg_pretend() {
+	if use test ; then
+		CHECKREQS_DISK_BUILD="7000M"
+	else
+		CHECKREQS_DISK_BUILD="6000M"
+	fi
+
+	check-reqs_pkg_pretend
+}
+
+pkg_setup() {
+	if [[ ${MERGE_TYPE} != binary ]] ; then
+		if use test ; then
+			CHECKREQS_DISK_BUILD="7000M"
+		else
+			CHECKREQS_DISK_BUILD="6000M"
+		fi
+
+		check-reqs_pkg_setup
+
+		llvm_pkg_setup
+
+		if use clang && use lto ; then
+			local version_lld=$(ld.lld --version 2>/dev/null | awk '{ print $2 }')
+			[[ -n ${version_lld} ]] && version_lld=$(ver_cut 1 "${version_lld}")
+			[[ -z ${version_lld} ]] && die "Failed to read ld.lld version!"
+
+			local version_llvm_rust=$(rustc -Vv 2>/dev/null | grep -F -- 'LLVM version:' | awk '{ print $3 }')
+			[[ -n ${version_llvm_rust} ]] && version_llvm_rust=$(ver_cut 1 "${version_llvm_rust}")
+			[[ -z ${version_llvm_rust} ]] && die "Failed to read used LLVM version from rustc!"
+
+			if ver_test "${version_lld}" -ne "${version_llvm_rust}" ; then
+				eerror "Rust is using LLVM version ${version_llvm_rust} but ld.lld version belongs to LLVM version ${version_lld}."
+				eerror "You will be unable to link ${CATEGORY}/${PN}. To proceed you have the following options:"
+				eerror "  - Manually switch rust version using 'eselect rust' to match used LLVM version"
+				eerror "  - Switch to dev-lang/rust[system-llvm] which will guarantee matching version"
+				eerror "  - Build ${CATEGORY}/${PN} without USE=lto"
+				eerror "  - Rebuild lld with llvm that was used to build rust (may need to rebuild the whole "
+				eerror "    llvm/clang/lld/rust chain depending on your @world updates)"
+				die "LLVM version used by Rust (${version_llvm_rust}) does not match with ld.lld version (${version_lld})!"
+			fi
+		fi
+
+		python-any-r1_pkg_setup
+
+		# Build system is using /proc/self/oom_score_adj, bug #604394
+		addpredict /proc/self/oom_score_adj
+
+		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
+
+		# Ensure we use C locale when building, bug #746215
+		export LC_ALL=C
+	fi
+}
+
+src_prepare() {
+	pushd ../.. &>/dev/null || die
+
+	use lto && rm -v "${WORKDIR}"/firefox-patches/*-LTO-Only-enable-LTO-*.patch
+
+	eapply "${WORKDIR}"/firefox-patches
+	eapply "${WORKDIR}"/spidermonkey-patches
+
+	default
+
+	# Make cargo respect MAKEOPTS
+	export CARGO_BUILD_JOBS="$(makeopts_jobs)"
+
+	# sed-in toolchain prefix
+	sed -i \
+		-e "s/objdump/${CHOST}-objdump/" \
+		python/mozbuild/mozbuild/configure/check_debug_ranges.py \
+		|| die "sed failed to set toolchain prefix"
+
+	# use prefix shell in wrapper linker scripts, bug #789660
+	hprefixify "${S}"/../../build/cargo-{,host-}linker
+
+	einfo "Removing pre-built binaries ..."
+	find third_party -type f \( -name '*.so' -o -name '*.o' \) -print -delete || die
+
+	MOZJS_BUILDDIR="${WORKDIR}/build"
+	mkdir "${MOZJS_BUILDDIR}" || die
+
+	popd &>/dev/null || die
+	eautoconf
+}
+
+src_configure() {
+	# Show flags set at the beginning
+	einfo "Current CFLAGS:    ${CFLAGS}"
+	einfo "Current CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Current LDFLAGS:   ${LDFLAGS}"
+	einfo "Current RUSTFLAGS: ${RUSTFLAGS}"
+
+	local have_switched_compiler=
+	if use clang; then
+		# Force clang
+		einfo "Enforcing the use of clang due to USE=clang ..."
+		if tc-is-gcc; then
+			have_switched_compiler=yes
+		fi
+		AR=llvm-ar
+		CC=${CHOST}-clang
+		CXX=${CHOST}-clang++
+		NM=llvm-nm
+		RANLIB=llvm-ranlib
+	elif ! use clang && ! tc-is-gcc ; then
+		# Force gcc
+		have_switched_compiler=yes
+		einfo "Enforcing the use of gcc due to USE=-clang ..."
+		AR=gcc-ar
+		CC=${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
+	export HOST_CC="$(tc-getBUILD_CC)"
+	export HOST_CXX="$(tc-getBUILD_CXX)"
+	export AS="$(tc-getCC) -c"
+	tc-export CC CXX LD AR AS NM OBJDUMP RANLIB PKG_CONFIG
+
+	cd "${MOZJS_BUILDDIR}" || die
+
+	# ../python/mach/mach/mixin/process.py fails to detect SHELL
+	export SHELL="${EPREFIX}/bin/bash"
+
+	local -a myeconfargs=(
+		--host="${CBUILD:-${CHOST}}"
+		--target="${CHOST}"
+
+		--disable-ctype
+		--disable-jemalloc
+		--disable-smoosh
+		--disable-strip
+
+		--enable-readline
+		--enable-release
+		--enable-shared-js
+
+		--with-intl-api
+		--with-system-icu
+		--with-system-nspr
+		--with-system-zlib
+		--with-toolchain-prefix="${CHOST}-"
+
+		$(use_enable debug)
+		$(use_enable jit)
+		$(use_enable test tests)
+	)
+
+	if use debug; then
+		myeconfargs+=( --disable-optimize )
+	else
+		myeconfargs+=( --enable-optimize )
+	fi
+
+	if ! use x86 && [[ ${CHOST} != armv*h* ]] ; then
+		myeconfargs+=( --enable-rust-simd )
+	fi
+
+	# Modifications to better support ARM, bug 717344
+	if use cpu_flags_arm_neon ; then
+		myeconfargs+=( --with-fpu=neon )
+
+		if ! tc-is-clang ; then
+			# thumb options aren't supported when using clang, bug 666966
+			myeconfargs+=( --with-thumb=yes )
+			myeconfargs+=( --with-thumb-interwork=no )
+		fi
+	fi
+
+	# Tell build system that we want to use LTO
+	if use lto ; then
+		if use clang ; then
+			myeconfargs+=( --enable-linker=lld )
+			myeconfargs+=( --enable-lto=cross )
+		else
+			myeconfargs+=( --enable-linker=bfd )
+			myeconfargs+=( --enable-lto=full )
+		fi
+	fi
+
+	# LTO flag was handled via configure
+	filter-flags '-flto*'
+
+	# Use system's Python environment
+	export MACH_BUILD_PYTHON_NATIVE_PACKAGE_SOURCE="none"
+	export PIP_NETWORK_INSTALL_RESTRICTED_VIRTUALENVS=mach
+
+	# Show flags we will use
+	einfo "Build CFLAGS:    ${CFLAGS}"
+	einfo "Build CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Build LDFLAGS:   ${LDFLAGS}"
+	einfo "Build RUSTFLAGS: ${RUSTFLAGS}"
+
+	# Forcing system-icu allows us to skip patching bundled ICU for PPC
+	# and other minor arches
+	ECONF_SOURCE="${S}" \
+		econf \
+		${myeconfargs[@]} \
+		XARGS="${EPREFIX}/usr/bin/xargs"
+}
+
+src_compile() {
+	cd "${MOZJS_BUILDDIR}" || die
+	default
+}
+
+src_test() {
+	if "${MOZJS_BUILDDIR}/js/src/js" -e 'print("Hello world!")'; then
+		einfo "Smoke-test successful, continuing with full test suite"
+	else
+		die "Smoke-test failed: did interpreter initialization fail?"
+	fi
+
+	cp "${FILESDIR}"/spidermonkey-${SLOT}-known-test-failures.txt "${T}"/known_failures.list || die
+
+	if [[ $(tc-endian) == "big" ]] ; then
+		echo "non262/extensions/clone-errors.js" >> "${T}"/known_failures.list
+		echo "test262/built-ins/Date/UTC/fp-evaluation-order.js" >> "${T}"/known_failures.list
+		echo "test262/built-ins/TypedArray/prototype/set/typedarray-arg-set-values-same-buffer-other-type.js" >> "${T}"/known_failures.list
+	fi
+
+	${EPYTHON} \
+		"${S}"/tests/jstests.py -d -s -t 1800 --wpt=disabled --no-progress \
+		--exclude-file="${T}"/known_failures.list \
+		"${MOZJS_BUILDDIR}"/js/src/js \
+		|| die
+
+	if use jit ; then
+		${EPYTHON} \
+			"${S}"/tests/jstests.py -d -s -t 1800 --wpt=disabled --no-progress \
+			--exclude-file="${T}"/known_failures.list \
+			"${MOZJS_BUILDDIR}"/js/src/js basic \
+			|| die
+	fi
+}
+
+src_install() {
+	cd "${MOZJS_BUILDDIR}" || die
+	default
+
+	# fix soname links
+	pushd "${ED}"/usr/$(get_libdir) &>/dev/null || die
+	mv lib${MY_PN}-${MY_MAJOR}.so lib${MY_PN}-${MY_MAJOR}.so.0.0.0 || die
+	ln -s lib${MY_PN}-${MY_MAJOR}.so.0.0.0 lib${MY_PN}-${MY_MAJOR}.so.0 || die
+	ln -s lib${MY_PN}-${MY_MAJOR}.so.0 lib${MY_PN}-${MY_MAJOR}.so || die
+	popd &>/dev/null || die
+
+	# remove unneeded files
+	rm \
+		"${ED}"/usr/bin/js${MY_MAJOR}-config \
+		"${ED}"/usr/$(get_libdir)/libjs_static.ajs \
+		|| die
+
+	# fix permissions
+	chmod -x \
+		"${ED}"/usr/$(get_libdir)/pkgconfig/*.pc \
+		"${ED}"/usr/include/mozjs-${MY_MAJOR}/js-config.h \
+		|| die
+}
diff --git a/dev-lang/spidermonkey/spidermonkey-102.9.0.ebuild b/dev-lang/spidermonkey/spidermonkey-102.9.0.ebuild
index eef5f13116f8..119e336940d7 100644
--- a/dev-lang/spidermonkey/spidermonkey-102.9.0.ebuild
+++ b/dev-lang/spidermonkey/spidermonkey-102.9.0.ebuild
@@ -61,7 +61,7 @@ SRC_URI="${MOZ_SRC_BASE_URI}/source/${MOZ_P}.source.tar.xz -> ${MOZ_P_DISTFILES}
 DESCRIPTION="SpiderMonkey is Mozilla's JavaScript engine written in C and C++"
 HOMEPAGE="https://spidermonkey.dev https://firefox-source-docs.mozilla.org/js/index.html "
 
-KEYWORDS="~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+KEYWORDS="amd64 ~arm arm64 ~mips ~ppc ppc64 ~riscv ~sparc x86"
 
 SLOT="$(ver_cut 1)"
 LICENSE="MPL-2.0"
@@ -365,6 +365,13 @@ src_test() {
 
 	cp "${FILESDIR}"/spidermonkey-${SLOT}-known-test-failures.txt "${T}"/known_failures.list || die
 
+	if use x86; then
+		echo "test262/language/types/number/S8.5_A2.1.js" >> "${T}"/known_failures.list
+		echo "test262/language/types/number/S8.5_A2.2.js" >> "${T}"/known_failures.list
+		echo "test262/built-ins/Date/UTC/fp-evaluation-order.js" >> "${T}"/known_failures.list
+		echo "non262/Date/timeclip.js" >> "${T}"/known_failures.list
+	fi
+
 	if [[ $(tc-endian) == "big" ]] ; then
 		echo "non262/extensions/clone-errors.js" >> "${T}"/known_failures.list
 		echo "test262/built-ins/Date/UTC/fp-evaluation-order.js" >> "${T}"/known_failures.list