2025-07-29 16:40:59+00:00

4 files changed, 955 insertions, 0 deletions

diff --git a/dev-lang/Manifest.gz b/dev-lang/Manifest.gz
index d99dc21415f25..f473fe9ac5157 100644
--- a/dev-lang/Manifest.gz
+++ b/dev-lang/Manifest.gz
diff --git a/dev-lang/spidermonkey/Manifest b/dev-lang/spidermonkey/Manifest
index 727ca9f689624..0c7a5228c359b 100644
--- a/dev-lang/spidermonkey/Manifest
+++ b/dev-lang/spidermonkey/Manifest
@@ -7,11 +7,13 @@ DIST firefox-115esr-patches-13.tar.xz 51360 BLAKE2B a048bfadba989ebbd4c6e3df97d3
 DIST firefox-128.10.1esr.source.tar.xz 568752664 BLAKE2B 6fe2da50fcc49ecd1304bd167fd73dad312ae9364ba7a33fe9216cb4fcdb6f806f637dd6aa8857516fd516366c31e19a6120c56c6568f20b2eb87bb6b5b84fff SHA512 6e7363d8cbecda1cedaf534ac10dc046b5f515399ec754492357e8a558c61ee3389f7bb90aa929dbcb4d6eba041ae1e778a0a8f90aa1e1f939eea517333b6c45
 DIST firefox-128.11.0esr.source.tar.xz 558920388 BLAKE2B 698828743acb046589b5eadaf7699d39b170c8e9491585e9704599e3a7a2519a3e5c516a10b8af9ffe425319b6c386cfbcd6694c8feb309c702eb7e44a9a2c8e SHA512 80af64c1dce6d7a25111480567a3251cc2d1edce00acc4d85bbaa44590f5bbf4c0716f9490c3ab8ef1e6fc2bbabb2379029c2dee51ce477933c7a5935092d279
 DIST firefox-128.12.0esr.source.tar.xz 560934320 BLAKE2B ba87d758e9f0d6803db2090fec27a24d8eece75226401190d76d11163424ad24d9db4882876bb88c872a84205265fac4a7b11b5e2826ce667466452b062f4807 SHA512 442d0b2b6ce02adcd878975f01e86548ca8fe93840185d77a1acb41ec99440c7abfdc8757e6f30d60593dcf2c7f50563b6ea6ccd4d239beea01305615b73c359
+DIST firefox-128.13.0esr.source.tar.xz 560782432 BLAKE2B 1be2fb1e76167f83061fa805dc09b2f32dc7c813655cde72eea4b0ccc44a02570a78e2f177c909f2faed96eed6f47d08b783cae3f19c1d8e44dc8e531eb1ecc2 SHA512 9e6f3af535e0904219bcac947d458789cc43cbfaf476ac287328323662391eaaadeff57b244599acf3626a2fadc0bc41b70d07e33ca6af4412006ad01ceff034
 DIST firefox-128.8.0esr.source.tar.xz 563554116 BLAKE2B 3fdfa2539b42a6a659d05ef9ad60d3dd7a0097abf3c5038150316d775e3eb864056a56edc58ae4e49ca36b3ccf2f05d68a07f8493a7649388e340cd81640e584 SHA512 7c0ef22bc14d4fa248cbae14d629174c9c967f891f4525f609760595f5a108aedf7dd804d1b63b97ec268613fa98378f4742a9b6ab562454351cf21175fdb802
 DIST firefox-128esr-patches-09.tar.xz 17976 BLAKE2B 78f64f5086951f7bf2b304c1148154647aef5c4e699257cba5e94a83d8d8c159a591d0b2a7a5f8bc0f8ec28d5eae66a0783b45f94b4ef713282a6f88e46c75be SHA512 159d8c94af0f90c10baf7446e573a37397b3be7103e7001fb6b38845a28a41793c21ad24c23e0b3cfc4daa2c3a6040ef701f612693c9f4dfff8534f82e7b18a1
 DIST firefox-128esr-patches-11.tar.xz 18696 BLAKE2B 0f35eaa29f1daf9beb09c7303b3e92676eea84337683b8f7393e8b52e36ec1f37683a050e1e8d7939ebb1bdc190acaac887bebe88812c1b64785e38980f18be3 SHA512 04bf8bbf3c4e7901a6681fec66f179f797615613be838cf35a4b03cd9a347656b1264524ac7355f0c3978a5e740ddc5dc438610e5cae6ffcad73a8988cf0e572
 DIST firefox-139-patches-03.tar.xz 11536 BLAKE2B a7610d1348a2a4d02305c8d694a1648997040c69cb1445b901fe456045d0b1a73f28b0102ed03d34f70d8cc1ea9ab0245599a104b0063c7fb0dcb5a8fdd6f60b SHA512 4733d34a842d525824fbcf6ef5d8f33e26b4f37a16aa87043427eaaf1e0665aa257cb8487bd692e4fd095c2a78553ab3f0213208124c3455e534394576fb5614
 DIST firefox-140.0esr.source.tar.xz 628567364 BLAKE2B c53de3ef536acbd72813ba4a8087f3cb363e380f16570ad2840db60235d55c7b2706ce9d694d029e8a2304bfb47a50cf8fa7a169a9c0631b9e7533ea4af6ad09 SHA512 12e40b81627ac4b44d43edb94aa1cd2a6c50bb49503e3b1b6f80259eed197ecb5847a0f0520ad204340dfe0ab7b5a4aa1ced2bc21ee0258471e8fdb121f6aaf4
+DIST firefox-140.1.0esr.source.tar.xz 638937036 BLAKE2B 8a6c1f50802cafc171a4c5a197afd3c724053203d5d92fe35a7453fa1a8c05c743c246b1ac257f073f70b485fb0d5a68071254587677c55926aeeed0e0bc87cc SHA512 1b5caff9b381cd449c40d148542501f7a31a7151a3f2f888e789c9743af8ee1d1eddbd970f8c0054902d1e1d739221db0cfcf1dc6ab704bb83bbb7b7b6a20055
 DIST spidermonkey-115-patches-02.tar.xz 4896 BLAKE2B f78d9804c1427b45d6fda496b4991ec6f672dec9ce031ed57a2920fa1968c942a235f46e40166c8ab8d731a1963f322d34bb2f6984133179175e6f7376d27d13 SHA512 11fd01152d1e7b8ca89bf628076e1f4fb4f1ba6c9dc0f9dd544252495c580c04e4d5ffc238d5587f9e993aa91a47828333564ca55f60e008bd370089cd07d2e6
 DIST spidermonkey-128-patches-03.tar.xz 3636 BLAKE2B 99517642e255762c57a9e65f4c4c4107b8d6a1630dd2e68dea4527ac0e5d70fc435122e6b4068a8223c9b2a6e06503c242659d1895b9a2ff6d75212e9c917498 SHA512 71e059861318073f09f7892094e6d44ec04385385086b2e126de8e4f80cff99410bbfd352a10f325e950441c398f7ba0ac82c861ce417c10a37ab5ea063c6be2
 DIST spidermonkey-140-patches-01.tar.xz 3324 BLAKE2B 551566e4e150dbe5cbe5400e27751a0da878e3cefab2cdb38d72f99b19b2403b3786ea2230b4477fba8d3e6799743a51652de5c0136811b0213134ce506e5534 SHA512 63327436c51b82c307a883a46c147ad8f3b9ea5b2d4c18b8c8cb475fe1c2c25e4d00af1e6c6c83899089df88794962725125c8572dbb31e201c2298bb3ad30c9
@@ -21,6 +23,8 @@ EBUILD spidermonkey-128.10.1.ebuild 13217 BLAKE2B b3d665a6b1eba5f9b8ab200ec24c2f
 EBUILD spidermonkey-128.11.0.ebuild 13222 BLAKE2B f195a84b486cbe34d52771b0a9f8c80ed2f7b03e0f417915a46d0244117dd0773f59149173c73037964a8d744088ca7780ce3cb1735cd94f67304b8c19aaf581 SHA512 ee42bd16858f0d40247a6722187f1e28d19dc521fec74acfa0c9699c99e77ce8558b8d5213da899257039edd81ae9453b4d0252d171bb3f1a38a08afd6467cd0
 EBUILD spidermonkey-128.12.0-r1.ebuild 13222 BLAKE2B 5745ad57400f18bd5e9d9685cae1d289780c6d27a894461205eb28b8660aac688d9982441f32fe43ef3155f52dfb0da223bb1b79c07f8f718554820abfee1586 SHA512 7eb7c58ddc9b9eeb79ecc4c6f73f487acaa9056f245f43fdc004f27bc4e33f89789a8c22384a6db2ea1395c6298f3e9b34e5743afcf2b0b6e0ecdec5d21081d3
 EBUILD spidermonkey-128.12.0.ebuild 13222 BLAKE2B f195a84b486cbe34d52771b0a9f8c80ed2f7b03e0f417915a46d0244117dd0773f59149173c73037964a8d744088ca7780ce3cb1735cd94f67304b8c19aaf581 SHA512 ee42bd16858f0d40247a6722187f1e28d19dc521fec74acfa0c9699c99e77ce8558b8d5213da899257039edd81ae9453b4d0252d171bb3f1a38a08afd6467cd0
+EBUILD spidermonkey-128.13.0.ebuild 13348 BLAKE2B a6679984f14564f3bf29e3c2e43fbbca25977976c633cbdddfea24452e08cf064d3000978fb5e6f00b51a67269a226652dad70d0d9472850c70f1957e016d188 SHA512 a3a253e5d5ddae0349542ec2a7e18fde1a38590d7c6ddf34a9d7abadba16dc674aed14021c5bf8c64d835bb31f1a37fd6e10b21ee49540aa9ad14b6430bf0632
 EBUILD spidermonkey-128.8.0.ebuild 13216 BLAKE2B 7afaabc2cec2eeac76a0b8129f74dcc6b6f33ec2e11b1da65576798725c98475789e4cd7042eca517e24f347b6b9c6015322d6306c42e8557c5fd70718f3935e SHA512 5c49f7280e34f5cf0865fb7f5920a58115500aaeb1da763da92ce9e35d8bc7affe1ddbeb9e7370d55b4fae1b99f34ccea0d5d6ddc3929944700fc80741760a87
 EBUILD spidermonkey-140.0.ebuild 12582 BLAKE2B be2505dc54828e66e10f6773cdbff82aa3180621a28556d287b3f7498f59c97c9c65bac58ae121afe5f94c102606394cea7e3a11679de919fa27922abfe8a776 SHA512 452e67cc9a8cd284309b55502f41ab395ce62d7074a3ff3500c25358a3793fa64f7cf0eba5798dfe0e39a3623b1e4d1c7929e1c9068971557ae2099b0598797c
+EBUILD spidermonkey-140.1.0.ebuild 12582 BLAKE2B be2505dc54828e66e10f6773cdbff82aa3180621a28556d287b3f7498f59c97c9c65bac58ae121afe5f94c102606394cea7e3a11679de919fa27922abfe8a776 SHA512 452e67cc9a8cd284309b55502f41ab395ce62d7074a3ff3500c25358a3793fa64f7cf0eba5798dfe0e39a3623b1e4d1c7929e1c9068971557ae2099b0598797c
 MISC metadata.xml 513 BLAKE2B 58ffd474492f03c16bda95e48511fb6281e03067d2ad77e994f8117345ecece5da9591dccedafe75b037d98e06851a3759caa4b993adc2910dbb76e1c01a7fa3 SHA512 1ee02bff37e2dabbd72b7f719463b12299270c7960b4cf5a92afab17c954c50e6acb826d4a91db4954fb4a7b0f8669988f2cdb5be991df90e3a605c6b35fdbfb
diff --git a/dev-lang/spidermonkey/spidermonkey-128.13.0.ebuild b/dev-lang/spidermonkey/spidermonkey-128.13.0.ebuild
new file mode 100644
index 0000000000000..e5c85f7055ef7
--- /dev/null
+++ b/dev-lang/spidermonkey/spidermonkey-128.13.0.ebuild
@@ -0,0 +1,484 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="8"
+
+FIREFOX_PATCHSET="firefox-128esr-patches-11.tar.xz"
+SPIDERMONKEY_PATCHSET="spidermonkey-128-patches-03.tar.xz"
+
+LLVM_COMPAT=( 17 18 19 )
+RUST_NEEDS_LLVM=1
+
+PYTHON_COMPAT=( python3_{10..13} )
+PYTHON_REQ_USE="ncurses,ssl,xml(+)"
+
+WANT_AUTOCONF="2.1"
+
+inherit autotools check-reqs flag-o-matic llvm-r1 multiprocessing python-any-r1 rust toolchain-funcs
+
+MY_PN="mozjs"
+MY_PV="${PV/_pre*}"
+
+MY_MAJOR=$(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/mozilla/patchsets/${FIREFOX_PATCHSET}
+	https://dev.gentoo.org/~juippis/mozilla/patchsets/${SPIDERMONKEY_PATCHSET}
+)
+
+DESCRIPTION="Mozilla's JavaScript engine written in C and C++"
+HOMEPAGE="https://spidermonkey.dev https://firefox-source-docs.mozilla.org/js/index.html"
+SRC_URI="${MOZ_SRC_BASE_URI}/source/${MOZ_P}.source.tar.xz -> ${MOZ_P_DISTFILES}.source.tar.xz
+	${PATCH_URIS[@]}"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86"
+
+LICENSE="MPL-2.0"
+SLOT="$(ver_cut 1)"
+IUSE="clang cpu_flags_arm_neon debug +jit test"
+
+# Tests are restricted as they haven't been ported to python-3.13, but there doesn't seem to be
+# runtime issues. Bug #952299
+RESTRICT="test"
+#RESTRICT="!test? ( test )"
+
+BDEPEND="${PYTHON_DEPS}
+	$(llvm_gen_dep '
+		clang? (
+			llvm-core/clang:${LLVM_SLOT}
+			llvm-core/lld:${LLVM_SLOT}
+			llvm-core/llvm:${LLVM_SLOT}
+		)
+	')
+	>=dev-util/cbindgen-0.26.0
+	virtual/pkgconfig
+	test? (
+		$(python_gen_any_dep 'dev-python/six[${PYTHON_USEDEP}]')
+	)"
+DEPEND=">=dev-libs/icu-73.1:=
+	dev-libs/nspr
+	sys-libs/readline:0=
+	sys-libs/zlib"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/firefox-${PV%_*}"
+
+llvm_check_deps() {
+	if use clang ; then
+		if ! has_version -b "llvm-core/clang:${LLVM_SLOT}" ; then
+			einfo "llvm-core/clang:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if ! has_version -b "llvm-core/llvm:${LLVM_SLOT}" ; then
+			einfo "llvm-core/llvm:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if ! tc-ld-is-mold ; then
+			if ! has_version -b "llvm-core/lld:${LLVM_SLOT}" ; then
+				einfo "llvm-core/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
+}
+
+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}"
+}
+
+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="4400M"
+	else
+		CHECKREQS_DISK_BUILD="4300M"
+	fi
+
+	check-reqs_pkg_pretend
+}
+
+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
+			filter-lto
+		fi
+
+		if [[ ${use_lto} = yes ]]; then
+			# -Werror=lto-type-mismatch -Werror=odr are going to fail with GCC,
+			# bmo#1516758, bgo#942288
+			filter-flags -Werror=lto-type-mismatch -Werror=odr
+		fi
+
+		if use test ; then
+			CHECKREQS_DISK_BUILD="4400M"
+		else
+			CHECKREQS_DISK_BUILD="4300M"
+		fi
+
+		check-reqs_pkg_setup
+		llvm-r1_pkg_setup
+		rust_pkg_setup
+		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
+
+	export use_lto
+}
+
+src_prepare() {
+	if [[ ${use_lto} == "yes" ]]; then
+		rm -v "${WORKDIR}"/firefox-patches/*-LTO-Only-enable-LTO-*.patch || die
+	fi
+
+	# Workaround for bgo #915651,915651,929013 on musl
+	if use elibc_glibc ; then
+		rm -v "${WORKDIR}"/firefox-patches/*bgo-748849-RUST_TARGET_override.patch || die
+	fi
+
+	eapply "${WORKDIR}"/firefox-patches
+	eapply "${WORKDIR}"/spidermonkey-patches
+
+	default
+
+	# Make cargo respect MAKEOPTS
+	export CARGO_BUILD_JOBS="$(makeopts_jobs)"
+
+	# Workaround for bgo #915651,915651,929013 on musl
+	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
+
+	# 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"
+
+	einfo "Removing pre-built binaries ..."
+	find third_party -type f \( -name '*.so' -o -name '*.o' \) -print -delete || die
+
+	# Create build dir
+	BUILD_DIR="${WORKDIR}/${PN}_build"
+	mkdir -p "${BUILD_DIR}" || die
+}
+
+src_configure() {
+	# Show flags set at the beginning
+	einfo "Current BINDGEN_CFLAGS:\t${BINDGEN_CFLAGS:-no value set}"
+	einfo "Current CFLAGS:    ${CFLAGS}"
+	einfo "Current CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Current LDFLAGS:   ${LDFLAGS}"
+	einfo "Current RUSTFLAGS: ${RUSTFLAGS}"
+
+	local have_switched_compiler=
+	if use clang ; then
+		# Force clang
+		einfo "Enforcing the use of clang due to USE=clang ..."
+
+		local version_clang=$(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++-${version_clang}
+		NM=llvm-nm
+		RANLIB=llvm-ranlib
+		READELF=llvm-readelf
+		OBJDUMP=llvm-objdump
+
+	elif ! use clang && ! tc-is-gcc ; then
+		# Force gcc
+		have_switched_compiler=yes
+		einfo "Enforcing the use of gcc due to USE=-clang ..."
+		AR=gcc-ar
+		CC=${CHOST}-gcc
+		CXX=${CHOST}-g++
+		NM=gcc-nm
+		RANLIB=gcc-ranlib
+		READELF=readelf
+		OBJDUMP=objdump
+	fi
+
+	if [[ -n "${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="$(tc-getCC) -c"
+
+	tc-export CC CXX LD AR AS NM OBJDUMP RANLIB READELF PKG_CONFIG
+
+	# Pass the correct toolchain paths through cbindgen
+	if tc-is-cross-compiler ; then
+		export BINDGEN_CFLAGS="${SYSROOT:+--sysroot=${ESYSROOT}} --target=${CHOST} ${BINDGEN_CFLAGS-}"
+	fi
+
+	# ../python/mach/mach/mixin/process.py fails to detect SHELL
+	export SHELL="${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-project=js
+
+	mozconfig_add_options_ac 'Gentoo default' \
+		--host="${CBUILD:-${CHOST}}" \
+		--target="${CHOST}" \
+		--disable-ctype \
+		--disable-jemalloc \
+		--disable-smoosh \
+		--disable-strip \
+		--enable-readline \
+		--enable-release \
+		--enable-shared-js \
+		--libdir="${EPREFIX}/usr/$(get_libdir)" \
+		--prefix="${EPREFIX}/usr" \
+		--with-intl-api \
+		--with-system-icu \
+		--with-system-nspr \
+		--with-system-zlib \
+		--with-toolchain-prefix="${CHOST}-" \
+		--x-includes="${ESYSROOT}/usr/include" \
+		--x-libraries="${ESYSROOT}/usr/$(get_libdir)"
+
+	mozconfig_use_enable debug
+	mozconfig_use_enable jit
+	mozconfig_use_enable test tests
+
+	if use debug ; then
+		mozconfig_add_options_ac '+debug' --disable-optimize
+		mozconfig_add_options_ac '+debug' --enable-debug-symbols
+		mozconfig_add_options_ac '+debug' --enable-real-time-tracing
+	else
+		mozconfig_add_options_ac '-debug' --enable-optimize
+		mozconfig_add_options_ac '-debug' --disable-debug-symbols
+		mozconfig_add_options_ac '-debug' --disable-real-time-tracing
+	fi
+
+	# We always end up disabling this at some point due to newer rust versions. bgo#933372
+	mozconfig_add_options_ac '--disable-rust-simd' --disable-rust-simd
+
+	# Modifications to better support ARM, bug 717344
+	if use cpu_flags_arm_neon ; then
+		mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-fpu=neon
+
+		if ! tc-is-clang ; then
+			# thumb options aren't supported when using clang, bug 666966
+			mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-thumb=yes
+			mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-thumb-interwork=no
+		fi
+	fi
+
+	# Tell build system that we want to use LTO
+	if [[ ${use_lto} == "yes" ]] ; then
+		if use clang ; then
+			if tc-ld-is-mold ; then
+				mozconfig_add_options_ac '+lto' --enable-linker=mold
+			else
+				mozconfig_add_options_ac '+lto' --enable-linker=lld
+			fi
+			mozconfig_add_options_ac '+lto' --enable-lto=cross
+
+		else
+			mozconfig_add_options_ac '+lto' --enable-linker=bfd
+			mozconfig_add_options_ac '+lto' --enable-lto=full
+		fi
+	fi
+
+	# LTO flag was handled via configure
+	filter-lto
+
+	# Pass MAKEOPTS to build system
+	export MOZ_MAKE_FLAGS="${MAKEOPTS}"
+
+	# Use system's Python environment
+	export MACH_BUILD_PYTHON_NATIVE_PACKAGE_SOURCE="none"
+	export PIP_NETWORK_INSTALL_RESTRICTED_VIRTUALENVS=mach
+
+	# 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:    ${CFLAGS}"
+	einfo "Build CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Build LDFLAGS:   ${LDFLAGS}"
+	einfo "Build RUSTFLAGS: ${RUSTFLAGS}"
+
+	./mach configure || die
+}
+
+src_compile() {
+	./mach build --verbose || die
+}
+
+src_test() {
+	if "${BUILD_DIR}/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 "${T}"/known_test_failures.list || die
+
+	if use ppc ; then
+		echo "non262/extensions/reviver-mutates-holder-object-nonnative.js" >> "${T}"/known_test_failures.list
+		echo "non262/extensions/typedarray-set-detach.js" >> "${T}"/known_test_failures.list
+	fi
+
+	if use ppc64 ; then
+		echo "test262/built-ins/TypedArray/prototype/set/typedarray-arg-set-values-same-buffer-other-type.js" >> "${T}"/known_test_failures.list
+	fi
+
+	if use x86 ; then
+		echo "non262/Intl/DateTimeFormat/timeZone_version.js" >> "${T}"/known_test_failures.list
+		echo "test262/intl402/Locale/constructor-non-iana-canon.js" >> "${T}"/known_test_failures.list
+	fi
+
+	./mach jstests --exclude-file="${T}"/known_test_failures.list || die
+}
+
+src_install() {
+	cd "${BUILD_DIR}" || 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-140.1.0.ebuild b/dev-lang/spidermonkey/spidermonkey-140.1.0.ebuild
new file mode 100644
index 0000000000000..17714dbf083cc
--- /dev/null
+++ b/dev-lang/spidermonkey/spidermonkey-140.1.0.ebuild
@@ -0,0 +1,467 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="8"
+
+FIREFOX_PATCHSET="firefox-139-patches-03.tar.xz"
+SPIDERMONKEY_PATCHSET="spidermonkey-140-patches-01.tar.xz"
+
+LLVM_COMPAT=( 19 20 )
+RUST_NEEDS_LLVM=1
+RUST_MIN_VER=1.82.0
+
+PYTHON_COMPAT=( python3_{11..13} )
+PYTHON_REQ_USE="ncurses,ssl,xml(+)"
+
+WANT_AUTOCONF="2.1"
+
+inherit check-reqs flag-o-matic llvm-r1 multiprocessing python-any-r1 rust toolchain-funcs
+
+MY_PN="mozjs"
+MY_PV="${PV/_pre*}"
+
+MY_MAJOR=$(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/mozilla/patchsets/${FIREFOX_PATCHSET}
+	https://dev.gentoo.org/~juippis/mozilla/patchsets/${SPIDERMONKEY_PATCHSET}
+)
+
+DESCRIPTION="Mozilla's JavaScript engine written in C and C++"
+HOMEPAGE="https://spidermonkey.dev https://firefox-source-docs.mozilla.org/js/index.html"
+SRC_URI="${MOZ_SRC_BASE_URI}/source/${MOZ_P}.source.tar.xz -> ${MOZ_P_DISTFILES}.source.tar.xz
+	${PATCH_URIS[@]}"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86"
+
+LICENSE="MPL-2.0"
+SLOT="$(ver_cut 1)"
+IUSE="clang cpu_flags_arm_neon debug +jit test"
+
+#RESTRICT="test"
+RESTRICT="!test? ( test )"
+
+BDEPEND="${PYTHON_DEPS}
+	$(llvm_gen_dep '
+		clang? (
+			llvm-core/clang:${LLVM_SLOT}
+			llvm-core/lld:${LLVM_SLOT}
+			llvm-core/llvm:${LLVM_SLOT}
+		)
+	')
+	>=dev-util/cbindgen-0.27.0
+	virtual/pkgconfig
+	test? (
+		$(python_gen_any_dep 'dev-python/six[${PYTHON_USEDEP}]')
+	)"
+DEPEND=">=dev-libs/icu-76.1:=
+	>=dev-libs/nspr-4.35
+	sys-libs/readline:0=
+	sys-libs/zlib"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/firefox-${PV%_*}"
+
+llvm_check_deps() {
+	if use clang ; then
+		if ! has_version -b "llvm-core/clang:${LLVM_SLOT}" ; then
+			einfo "llvm-core/clang:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if ! has_version -b "llvm-core/llvm:${LLVM_SLOT}" ; then
+			einfo "llvm-core/llvm:${LLVM_SLOT} is missing! Cannot use LLVM slot ${LLVM_SLOT} ..." >&2
+			return 1
+		fi
+
+		if ! tc-ld-is-mold ; then
+			if ! has_version -b "llvm-core/lld:${LLVM_SLOT}" ; then
+				einfo "llvm-core/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
+}
+
+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}"
+}
+
+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="4400M"
+	else
+		CHECKREQS_DISK_BUILD="4300M"
+	fi
+
+	check-reqs_pkg_pretend
+}
+
+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
+			filter-lto
+		fi
+
+		if [[ ${use_lto} = yes ]]; then
+			# -Werror=lto-type-mismatch -Werror=odr are going to fail with GCC,
+			# bmo#1516758, bgo#942288
+			filter-flags -Werror=lto-type-mismatch -Werror=odr
+		fi
+
+		if use test ; then
+			CHECKREQS_DISK_BUILD="4400M"
+		else
+			CHECKREQS_DISK_BUILD="4300M"
+		fi
+
+		check-reqs_pkg_setup
+		llvm-r1_pkg_setup
+		rust_pkg_setup
+		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
+
+	export use_lto
+}
+
+src_prepare() {
+	if [[ ${use_lto} == "yes" ]]; then
+		rm -v "${WORKDIR}"/firefox-patches/*-LTO-Only-enable-LTO-*.patch || die
+	fi
+
+	# Workaround for bgo #915651,915651,929013 on musl
+	if use elibc_glibc ; then
+		rm -v "${WORKDIR}"/firefox-patches/*bgo-748849-RUST_TARGET_override.patch || die
+	fi
+
+	eapply "${WORKDIR}"/firefox-patches
+	eapply "${WORKDIR}"/spidermonkey-patches
+
+	default
+
+	# Make cargo respect MAKEOPTS
+	export CARGO_BUILD_JOBS="$(makeopts_jobs)"
+
+	# Workaround for bgo #915651,915651,929013 on musl
+	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
+
+	# 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"
+
+	einfo "Removing pre-built binaries ..."
+	find third_party -type f \( -name '*.so' -o -name '*.o' \) -print -delete || die
+
+	# Create build dir
+	BUILD_DIR="${WORKDIR}/${PN}_build"
+	mkdir -p "${BUILD_DIR}" || die
+}
+
+src_configure() {
+	# Show flags set at the beginning
+	einfo "Current BINDGEN_CFLAGS:\t${BINDGEN_CFLAGS:-no value set}"
+	einfo "Current CFLAGS:    ${CFLAGS}"
+	einfo "Current CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Current LDFLAGS:   ${LDFLAGS}"
+	einfo "Current RUSTFLAGS: ${RUSTFLAGS}"
+
+	local have_switched_compiler=
+	if use clang ; then
+		# Force clang
+		einfo "Enforcing the use of clang due to USE=clang ..."
+
+		local version_clang=$(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++-${version_clang}
+		NM=llvm-nm
+		RANLIB=llvm-ranlib
+		READELF=llvm-readelf
+		OBJDUMP=llvm-objdump
+
+	elif ! use clang && ! tc-is-gcc ; then
+		# Force gcc
+		have_switched_compiler=yes
+		einfo "Enforcing the use of gcc due to USE=-clang ..."
+		AR=gcc-ar
+		CC=${CHOST}-gcc
+		CXX=${CHOST}-g++
+		NM=gcc-nm
+		RANLIB=gcc-ranlib
+		READELF=readelf
+		OBJDUMP=objdump
+	fi
+
+	if [[ -n "${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="$(tc-getCC) -c"
+
+	tc-export CC CXX LD AR AS NM OBJDUMP RANLIB READELF PKG_CONFIG
+
+	# Pass the correct toolchain paths through cbindgen
+	if tc-is-cross-compiler ; then
+		export BINDGEN_CFLAGS="${SYSROOT:+--sysroot=${ESYSROOT}} --target=${CHOST} ${BINDGEN_CFLAGS-}"
+	fi
+
+	# ../python/mach/mach/mixin/process.py fails to detect SHELL
+	export SHELL="${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-project=js
+
+	mozconfig_add_options_ac 'Gentoo default' \
+		--host="${CBUILD:-${CHOST}}" \
+		--target="${CHOST}" \
+		--disable-ctype \
+		--disable-jemalloc \
+		--disable-smoosh \
+		--disable-strip \
+		--enable-packed-relative-relocs \
+		--enable-readline \
+		--enable-release \
+		--enable-shared-js \
+		--libdir="${EPREFIX}/usr/$(get_libdir)" \
+		--prefix="${EPREFIX}/usr" \
+		--with-intl-api \
+		--with-system-icu \
+		--with-system-nspr \
+		--with-system-zlib \
+		--with-toolchain-prefix="${CHOST}-"
+
+	mozconfig_use_enable debug
+	mozconfig_use_enable jit
+	mozconfig_use_enable test tests
+
+	if use debug ; then
+		mozconfig_add_options_ac '+debug' --disable-optimize
+		mozconfig_add_options_ac '+debug' --enable-debug-symbols
+		mozconfig_add_options_ac '+debug' --enable-real-time-tracing
+	else
+		mozconfig_add_options_ac '-debug' --enable-optimize
+		mozconfig_add_options_ac '-debug' --disable-debug-symbols
+		mozconfig_add_options_ac '-debug' --disable-real-time-tracing
+	fi
+
+	# We always end up disabling this at some point due to newer rust versions. bgo#933372
+	mozconfig_add_options_ac '--disable-rust-simd' --disable-rust-simd
+
+	# Modifications to better support ARM, bug 717344
+	if use cpu_flags_arm_neon ; then
+		mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-fpu=neon
+
+		if ! tc-is-clang ; then
+			# thumb options aren't supported when using clang, bug 666966
+			mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-thumb=yes
+			mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-thumb-interwork=no
+		fi
+	fi
+
+	# Tell build system that we want to use LTO
+	if [[ ${use_lto} == "yes" ]] ; then
+		if use clang ; then
+			if tc-ld-is-mold ; then
+				mozconfig_add_options_ac '+lto' --enable-linker=mold
+			else
+				mozconfig_add_options_ac '+lto' --enable-linker=lld
+			fi
+			mozconfig_add_options_ac '+lto' --enable-lto=cross
+
+		else
+			mozconfig_add_options_ac '+lto' --enable-linker=bfd
+			mozconfig_add_options_ac '+lto' --enable-lto=full
+		fi
+	fi
+
+	# LTO flag was handled via configure
+	filter-lto
+
+	# Pass MAKEOPTS to build system
+	export MOZ_MAKE_FLAGS="${MAKEOPTS}"
+
+	# Use system's Python environment
+	export MACH_BUILD_PYTHON_NATIVE_PACKAGE_SOURCE="none"
+	export PIP_NETWORK_INSTALL_RESTRICTED_VIRTUALENVS=mach
+
+	# 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:    ${CFLAGS}"
+	einfo "Build CXXFLAGS:  ${CXXFLAGS}"
+	einfo "Build LDFLAGS:   ${LDFLAGS}"
+	einfo "Build RUSTFLAGS: ${RUSTFLAGS}"
+
+	./mach configure || die
+}
+
+src_compile() {
+	./mach build --verbose || die
+}
+
+src_test() {
+	if "${BUILD_DIR}/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 "${T}"/known_test_failures.list || die
+	./mach jstests --exclude-file="${T}"/known_test_failures.list || die
+}
+
+src_install() {
+	cd "${BUILD_DIR}" || die
+	default
+
+	# fix soname links
+	pushd "${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
+}