dev-libs/protobuf: Sync with Gentoo

It's from Gentoo commit 39e137a9c96716ca452085cc09a005704d340329.

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/Manifest

@@ -6,7 +6,11 @@ DIST protobuf-23.4.tar.gz 5043507 BLAKE2B bf6a50771eb977ef92b779a32fd909693faae6
 DIST protobuf-24.4.tar.gz 5180235 BLAKE2B 1c7e9035d9f3810886baaea7d679414c882463c79828c99dd8895a9549638c1ca17f9ab3b38d461019f3e1412d9cb9584b995b1da99866eb6fdbb8bdeb063e6f SHA512 52b6ab5587d03cbd1f35cf3cdc388e1710fa50f3031559ac53cf754965407ded7602cdead56080444ab695588112cc3391a1d7fdd5e565d90d0af7ad08706315
 DIST protobuf-25.3.tar.gz 5878962 BLAKE2B 9268f9bd993a1cfd6d3937a2ad56ba4cfe3d84923756513841cbf13039d4a07acb260468745cb1294f30334cb34b45c6fde272f5c40d9de63ac6a4ce5c263077 SHA512 1f73e237c919082e5423ae9e2ea8813dccf672c059051d1531fe89ffaa45872d3cf3052b8c3af26f674296ec17d7dc861c67b8f0834ed80261ce4a6a14ed7115
 DIST protobuf-25.4.tar.gz 5878444 BLAKE2B 9b40985bda31a84dd3ab7a1d18f746d5f88660d9e036a20234cbc85e79322005d2ffd4e60d72c55a8b5f624d7cc50522771f0804f203f2eabca7b0b8ace0545e SHA512 1b3ba1a1575bcc9d52ddce93d466912863d600dfbb40f64845b8e66c8000047d05508b8f1baba8d5eef42a7ff90eb778f7c8a553c9ec2778fd3a9a18122c67ab
+DIST protobuf-25.5.tar.gz 5877036 BLAKE2B a8174c7cbda47afa3f31d64c7a7aa7f233efd5df5a783abedd229613c8c27a2380684fb5851dad67f76f063688dd8060a0a373f2c95441c2ad91630eb187af22 SHA512 9fe130f5c04919accc99113e13096df93db4c2254a9c2428faf9459416907c77fbf4adefbae3fe644e1f26d9c1fc597165e2c5b6219156c97500d6ef3fdc0793
 DIST protobuf-26.1.tar.gz 5957903 BLAKE2B 1a7faab2f56aa0995801a80f73a812c7fc38a00af0bf25bdd5eecf7aec27a86a575ea2fb8484787d19c9ac6e46007c9864e79464f529c446f31af732981feed1 SHA512 0363ac09f92d8e040491425d444c8dca0b9b430e02d2dff6e2b28a0c2b2bea0d33a47f50bc9e2e2d4e8e22b65a02009a20c0066fb89c75df93a7b703dda42ed4
 DIST protobuf-27.2.tar.gz 6282174 BLAKE2B 86d12e9f87e8e1c2961ad517115c8689a8dd984722513816d8d626e59a76f5e7a698a90cbf6007daacf66c6053c9ff28108ff113579a442ce61cd221178bda44 SHA512 664c66b62cf1ed0c65d9b910d8e67d4d5d471113697f1b8edf1573cd5c0fc8e850ac53ce984e48e6c6b9cbbefa12f8530058384e7388e65a59c1e46d03772397
 DIST protobuf-27.4.tar.gz 9156456 BLAKE2B 004427f4923e523bf77298600bf91a8fe4ca8be4bd6da5b7efcfe9186a032155e525426f83f683e1bed1e799ed1e62d250053386c1463cbd0c062bd05da786d0 SHA512 d076ce7e075096d0dba7ee2314b12e3223c4239c019e25670636a0ef812ddf0ce3f1fd9b9fe8517319db87b14bbdb2653cc4e06023f90032dfedb014457b2863
+DIST protobuf-27.5.tar.gz 9153935 BLAKE2B 08b1b5927188e68ef2ae8ce8cdc6f21c34ee8453f4dfaeb362a7f5a5f0ee5ddc24772e5583ab10fbf193aa43e7fdd316e8fbbe4d066df704aef5469dae01fc8d SHA512 bb266483b11268c207aa0e8ce76442351a331f30151586714d57ed7c9bae05f09aabf5042b90eac85658f708671ba0b33c64d1c58a91a24c00bbf4f4ffdce1bb
 DIST protobuf-28.0.tar.gz 9259114 BLAKE2B 328e09ebffb296d838557ea72a4fc4da8e0ad5f1edfccebcc8ee7c9e0e74d06e5e6dbad741fd89f6a4502c1cb246a973fd60c035ccdbf89700b7baff49e2a65e SHA512 8745f625ac781f3bbefe9494cbf570143d38aecc1521edef7a52ffb403b8be24df2c71f4f2410b5a5b78a0f3e8a38a7d19be2cf916b1b9125349d2da18262cd1
+DIST protobuf-28.3.tar.gz 9256608 BLAKE2B 05162124676abe18300481e9f985fd2cfb09b052d06670a993e79ef02f3daf0d5380b521977ebc2362d4094486151ea285fe1c98a1d2f3799b18a1fa422fdc13 SHA512 a91e175fed7eb01c4240842a5af73a7d3cefccbb10885434bceeb7bc89ab6c56a74912cee290bf46e81d4026f3c9c2b10faad5545816064e215c4bae7908263d
+DIST protobuf-29.2.tar.gz 9348408 BLAKE2B 847798474bc6a76b9badfdbf605e118dece5e321e81242d7fa1bf5f5d17ee05a3d365ec112dc6d861cade97efff8be1d5d04006a5144f613bdb3ff5eacc63b99 SHA512 aeb21773edc3dd92a6c1ba6ccd721cc8a20d61230a5309c75ee3ef19baa554c228a6d1095f191ccc18f10183b646f3140dfe6526f5812bcaa64b7d5260572643

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-25.5.ebuild

@@ -0,0 +1,169 @@
+# Copyright 2008-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake-multilib elisp-common multilib
+
+# NOTE from https://github.com/protocolbuffers/protobuf/blob/main/.gitmodules
+ABSEIL_BRANCH="lts_2023_08_02"
+
+ABSEIL_MIN_VER="${ABSEIL_BRANCH//lts_}"
+ABSEIL_MIN_VER="${ABSEIL_MIN_VER//_/}"
+
+if [[ "${PV}" == *9999 ]]; then
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=( '-*' )
+	MY_SLOT="28.0"
+
+	inherit git-r3
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/releases/download/v${PV}/${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	MY_SLOT=$(ver_cut 1-2)
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="https://protobuf.dev/"
+
+LICENSE="BSD"
+SLOT="0/${MY_SLOT}.0"
+IUSE="conformance debug emacs examples +libprotoc libupb +protobuf +protoc test zlib"
+
+# Require protobuf for the time being
+REQUIRED_USE="
+	protobuf
+	examples? ( protobuf protoc )
+	libprotoc? ( protobuf )
+	libupb? (	protobuf )
+	protoc? ( protobuf )
+"
+
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	emacs? ( app-editors/emacs:* )
+"
+
+COMMON_DEPEND="
+	>=dev-cpp/abseil-cpp-${ABSEIL_MIN_VER}:=[${MULTILIB_USEDEP}]
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	conformance? ( dev-libs/jsoncpp[${MULTILIB_USEDEP}] )
+	test? ( >=dev-cpp/gtest-1.11[${MULTILIB_USEDEP}] )
+"
+RDEPEND="
+	${COMMON_DEPEND}
+	${BDEPEND}
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-26.1-disable-32-bit-tests.patch"
+	"${FILESDIR}/${PN}-23.3-static_assert-failure.patch"
+	"${FILESDIR}/${PN}-27.4-findJsonCpp.patch"
+)
+
+DOCS=( CONTRIBUTORS.txt README.md )
+
+src_prepare() {
+	cmake_src_prepare
+
+	cp "${FILESDIR}/FindJsonCpp.cmake" "${S}/cmake" || die
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-Dprotobuf_ABSL_PROVIDER="package"
+		-Dprotobuf_JSONCPP_PROVIDER="package"
+
+		-Dprotobuf_BUILD_CONFORMANCE="$(usex test "$(usex conformance)")"
+		-Dprotobuf_BUILD_LIBPROTOC="$(usex libprotoc)"
+		-Dprotobuf_BUILD_LIBUPB="$(usex libupb)"
+		-Dprotobuf_BUILD_PROTOBUF_BINARIES="$(usex protobuf)"
+		-Dprotobuf_BUILD_PROTOC_BINARIES="$(usex protoc)"
+		-Dprotobuf_BUILD_SHARED_LIBS="yes"
+		-Dprotobuf_BUILD_TESTS="$(usex test)"
+
+		-Dprotobuf_DISABLE_RTTI="no"
+
+		-Dprotobuf_INSTALL="yes"
+		-Dprotobuf_TEST_XML_OUTDIR="$(usex test)"
+
+		-Dprotobuf_WITH_ZLIB="$(usex zlib)"
+		-Dprotobuf_VERBOSE="$(usex debug)"
+		-DCMAKE_MODULE_PATH="${S}/cmake"
+	)
+	if use protobuf ; then
+		if use examples ; then
+			mycmakeargs+=(
+				-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
+				-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=( -Dprotobuf_USE_EXTERNAL_GTEST="yes" )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	cmake-multilib_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+src_test() {
+	local -x srcdir="${S}/src"
+
+	local -x TEST_TMPDIR="${T%/}/TEST_TMPDIR_${ABI}"
+	mkdir -m 777 "${TEST_TMPDIR}" || die
+
+	setup_test_env() {
+		ln -sr "${S}/src" "${BUILD_DIR}/include" || die
+	}
+
+	multilib_foreach_abi setup_test_env
+
+	cmake-multilib_src_test
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${FILESDIR}/proto.vim"
+
+	if use emacs; then
+		elisp-install "${PN}" editors/protobuf-mode.el*
+		elisp-site-file-install "${FILESDIR}/70${PN}-gentoo.el"
+	fi
+
+	if use examples; then
+		DOCS+=(examples)
+		docompress -x "/usr/share/doc/${PF}/examples"
+	fi
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-27.5.ebuild

@@ -0,0 +1,170 @@
+# Copyright 2008-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake-multilib elisp-common multilib
+
+# NOTE from https://github.com/protocolbuffers/protobuf/blob/main/.gitmodules
+ABSEIL_BRANCH="lts_2023_08_02"
+
+ABSEIL_MIN_VER="${ABSEIL_BRANCH//lts_}"
+ABSEIL_MIN_VER="${ABSEIL_MIN_VER//_/}"
+
+if [[ "${PV}" == *9999 ]]; then
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=( '-*' )
+	MY_SLOT="28.0"
+
+	inherit git-r3
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/releases/download/v${PV}/${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	MY_SLOT=$(ver_cut 1-2)
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="https://protobuf.dev/"
+
+LICENSE="BSD"
+SLOT="0/${MY_SLOT}.0"
+IUSE="conformance debug emacs examples +libprotoc libupb +protobuf +protoc test zlib"
+
+# Require protobuf for the time being
+REQUIRED_USE="
+	protobuf
+	examples? ( protobuf protoc )
+	libprotoc? ( protobuf )
+	libupb? (	protobuf )
+	protoc? ( protobuf )
+"
+
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	emacs? ( app-editors/emacs:* )
+"
+
+COMMON_DEPEND="
+	>=dev-cpp/abseil-cpp-${ABSEIL_MIN_VER}:=[${MULTILIB_USEDEP}]
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	conformance? ( dev-libs/jsoncpp[${MULTILIB_USEDEP}] )
+	test? ( >=dev-cpp/gtest-1.11[${MULTILIB_USEDEP}] )
+"
+RDEPEND="
+	${COMMON_DEPEND}
+	${BDEPEND}
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-26.1-disable-32-bit-tests.patch"
+	"${FILESDIR}/${PN}-23.3-static_assert-failure.patch"
+	"${FILESDIR}/${PN}-27.4-findJsonCpp.patch"
+	"${FILESDIR}/${PN}-28.0-disable-test_upb-lto.patch"
+)
+
+DOCS=( CONTRIBUTORS.txt README.md )
+
+src_prepare() {
+	cmake_src_prepare
+
+	cp "${FILESDIR}/FindJsonCpp.cmake" "${S}/cmake" || die
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-Dprotobuf_ABSL_PROVIDER="package"
+		-Dprotobuf_JSONCPP_PROVIDER="package"
+
+		-Dprotobuf_BUILD_CONFORMANCE="$(usex test "$(usex conformance)")"
+		-Dprotobuf_BUILD_LIBPROTOC="$(usex libprotoc)"
+		-Dprotobuf_BUILD_LIBUPB="$(usex libupb)"
+		-Dprotobuf_BUILD_PROTOBUF_BINARIES="$(usex protobuf)"
+		-Dprotobuf_BUILD_PROTOC_BINARIES="$(usex protoc)"
+		-Dprotobuf_BUILD_SHARED_LIBS="yes"
+		-Dprotobuf_BUILD_TESTS="$(usex test)"
+
+		-Dprotobuf_DISABLE_RTTI="no"
+
+		-Dprotobuf_INSTALL="yes"
+		-Dprotobuf_TEST_XML_OUTDIR="$(usex test)"
+
+		-Dprotobuf_WITH_ZLIB="$(usex zlib)"
+		-Dprotobuf_VERBOSE="$(usex debug)"
+		-DCMAKE_MODULE_PATH="${S}/cmake"
+	)
+	if use protobuf ; then
+		if use examples ; then
+			mycmakeargs+=(
+				-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
+				-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=( -Dprotobuf_USE_EXTERNAL_GTEST="yes" )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	cmake-multilib_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+src_test() {
+	local -x srcdir="${S}/src"
+
+	local -x TEST_TMPDIR="${T%/}/TEST_TMPDIR_${ABI}"
+	mkdir -m 777 "${TEST_TMPDIR}" || die
+
+	setup_test_env() {
+		ln -sr "${S}/src" "${BUILD_DIR}/include" || die
+	}
+
+	multilib_foreach_abi setup_test_env
+
+	cmake-multilib_src_test
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${FILESDIR}/proto.vim"
+
+	if use emacs; then
+		elisp-install "${PN}" editors/protobuf-mode.el*
+		elisp-site-file-install "${FILESDIR}/70${PN}-gentoo.el"
+	fi
+
+	if use examples; then
+		DOCS+=(examples)
+		docompress -x "/usr/share/doc/${PF}/examples"
+	fi
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-28.0.ebuild

@@ -1,4 +1,4 @@
-# Copyright 2008-2024 Gentoo Authors
+# Copyright 2008-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -19,7 +19,7 @@ if [[ "${PV}" == *9999 ]]; then
 	inherit git-r3
 else
 	SRC_URI="https://github.com/protocolbuffers/protobuf/releases/download/v${PV}/${P}.tar.gz"
-	KEYWORDS="~alpha amd64 arm arm64 ~loong ~mips ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	KEYWORDS="~alpha amd64 arm arm64 ~loong ~mips ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
 	MY_SLOT=$(ver_cut 1-2)
 fi
 
@@ -127,6 +127,14 @@ src_test() {
 
 	multilib_foreach_abi setup_test_env
 
+	# Do headstands for LTO # 942985
+	local -x GTEST_FILTER
+	GTEST_FILTER="-FileDescriptorSetSource/EncodeDecodeTest*"
+
+	cmake-multilib_src_test
+
+	GTEST_FILTER="${GTEST_FILTER//-/}"
+
 	cmake-multilib_src_test
 }
 

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-28.3-r1.ebuild

@@ -0,0 +1,178 @@
+# Copyright 2008-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake-multilib elisp-common multilib
+
+# NOTE from https://github.com/protocolbuffers/protobuf/blob/main/.gitmodules
+ABSEIL_BRANCH="lts_2023_08_02"
+
+ABSEIL_MIN_VER="${ABSEIL_BRANCH//lts_}"
+ABSEIL_MIN_VER="${ABSEIL_MIN_VER//_/}"
+
+if [[ "${PV}" == *9999 ]]; then
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=( '-*' )
+	MY_SLOT="28.0"
+
+	inherit git-r3
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/releases/download/v${PV}/${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	MY_SLOT=$(ver_cut 1-2)
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="https://protobuf.dev/"
+
+LICENSE="BSD"
+SLOT="0/${MY_SLOT}.0"
+IUSE="conformance debug emacs examples +libprotoc libupb +protobuf +protoc test zlib"
+
+# Require protobuf for the time being
+REQUIRED_USE="
+	protobuf
+	examples? ( protobuf protoc )
+	libprotoc? ( protobuf )
+	libupb? (	protobuf )
+	protoc? ( protobuf )
+"
+
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	emacs? ( app-editors/emacs:* )
+"
+
+COMMON_DEPEND="
+	>=dev-cpp/abseil-cpp-${ABSEIL_MIN_VER}:=[${MULTILIB_USEDEP}]
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	conformance? ( dev-libs/jsoncpp[${MULTILIB_USEDEP}] )
+	test? ( >=dev-cpp/gtest-1.11[${MULTILIB_USEDEP}] )
+"
+RDEPEND="
+	${COMMON_DEPEND}
+	${BDEPEND}
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-26.1-disable-32-bit-tests.patch"
+	"${FILESDIR}/${PN}-23.3-static_assert-failure.patch"
+	"${FILESDIR}/${PN}-27.4-findJsonCpp.patch"
+	"${FILESDIR}/${PN}-28.0-disable-test_upb-lto.patch"
+)
+
+DOCS=( CONTRIBUTORS.txt README.md )
+
+src_prepare() {
+	cmake_src_prepare
+
+	cp "${FILESDIR}/FindJsonCpp.cmake" "${S}/cmake" || die
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-Dprotobuf_ABSL_PROVIDER="package"
+		-Dprotobuf_JSONCPP_PROVIDER="package"
+
+		-Dprotobuf_BUILD_CONFORMANCE="$(usex test "$(usex conformance)")"
+		-Dprotobuf_BUILD_LIBPROTOC="$(usex libprotoc)"
+		-Dprotobuf_BUILD_LIBUPB="$(usex libupb)"
+		-Dprotobuf_BUILD_PROTOBUF_BINARIES="$(usex protobuf)"
+		-Dprotobuf_BUILD_PROTOC_BINARIES="$(usex protoc)"
+		-Dprotobuf_BUILD_SHARED_LIBS="yes"
+		-Dprotobuf_BUILD_TESTS="$(usex test)"
+
+		-Dprotobuf_DISABLE_RTTI="no"
+
+		-Dprotobuf_INSTALL="yes"
+		-Dprotobuf_TEST_XML_OUTDIR="$(usex test)"
+
+		-Dprotobuf_WITH_ZLIB="$(usex zlib)"
+		-Dprotobuf_VERBOSE="$(usex debug)"
+		-DCMAKE_MODULE_PATH="${S}/cmake"
+	)
+	if use protobuf ; then
+		if use examples ; then
+			mycmakeargs+=(
+				-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
+				-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=( -Dprotobuf_USE_EXTERNAL_GTEST="yes" )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	cmake-multilib_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+src_test() {
+	local -x srcdir="${S}/src"
+
+	local -x TEST_TMPDIR="${T%/}/TEST_TMPDIR_${ABI}"
+	mkdir -m 777 "${TEST_TMPDIR}" || die
+
+	setup_test_env() {
+		ln -sr "${S}/src" "${BUILD_DIR}/include" || die
+	}
+
+	multilib_foreach_abi setup_test_env
+
+	# Do headstands for LTO # 942985
+	local -x GTEST_FILTER
+	GTEST_FILTER="-FileDescriptorSetSource/EncodeDecodeTest*"
+
+	cmake-multilib_src_test
+
+	GTEST_FILTER="${GTEST_FILTER//-/}"
+
+	cmake-multilib_src_test
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${FILESDIR}/proto.vim"
+
+	if use emacs; then
+		elisp-install "${PN}" editors/protobuf-mode.el*
+		elisp-site-file-install "${FILESDIR}/70${PN}-gentoo.el"
+	fi
+
+	if use examples; then
+		DOCS+=(examples)
+		docompress -x "/usr/share/doc/${PF}/examples"
+	fi
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-29.2.ebuild

@@ -0,0 +1,177 @@
+# Copyright 2008-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake-multilib elisp-common multilib
+
+# NOTE from https://github.com/protocolbuffers/protobuf/blob/main/.gitmodules
+ABSEIL_BRANCH="lts_2023_08_02"
+
+ABSEIL_MIN_VER="${ABSEIL_BRANCH//lts_}"
+ABSEIL_MIN_VER="${ABSEIL_MIN_VER//_/}"
+
+if [[ "${PV}" == *9999 ]]; then
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=( '-*' )
+	MY_SLOT="28.0"
+
+	inherit git-r3
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/releases/download/v${PV}/${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	MY_SLOT=$(ver_cut 1-2)
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="https://protobuf.dev/"
+
+LICENSE="BSD"
+SLOT="0/${MY_SLOT}.0"
+IUSE="conformance debug emacs examples +libprotoc libupb +protobuf +protoc test zlib"
+
+# Require protobuf for the time being
+REQUIRED_USE="
+	protobuf
+	examples? ( protobuf protoc )
+	libprotoc? ( protobuf )
+	libupb? (	protobuf )
+	protoc? ( protobuf )
+"
+
+RESTRICT="!test? ( test )"
+
+BDEPEND="
+	emacs? ( app-editors/emacs:* )
+"
+
+COMMON_DEPEND="
+	>=dev-cpp/abseil-cpp-${ABSEIL_MIN_VER}:=[${MULTILIB_USEDEP}]
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	conformance? ( dev-libs/jsoncpp[${MULTILIB_USEDEP}] )
+	test? ( >=dev-cpp/gtest-1.11[${MULTILIB_USEDEP}] )
+"
+RDEPEND="
+	${COMMON_DEPEND}
+	${BDEPEND}
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-23.3-static_assert-failure.patch"
+	"${FILESDIR}/${PN}-27.4-findJsonCpp.patch"
+	"${FILESDIR}/${PN}-28.0-disable-test_upb-lto.patch"
+)
+
+DOCS=( CONTRIBUTORS.txt README.md )
+
+src_prepare() {
+	cmake_src_prepare
+
+	cp "${FILESDIR}/FindJsonCpp.cmake" "${S}/cmake" || die
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-Dprotobuf_ABSL_PROVIDER="package"
+		-Dprotobuf_JSONCPP_PROVIDER="package"
+
+		-Dprotobuf_BUILD_CONFORMANCE="$(usex test "$(usex conformance)")"
+		-Dprotobuf_BUILD_LIBPROTOC="$(usex libprotoc)"
+		-Dprotobuf_BUILD_LIBUPB="$(usex libupb)"
+		-Dprotobuf_BUILD_PROTOBUF_BINARIES="$(usex protobuf)"
+		-Dprotobuf_BUILD_PROTOC_BINARIES="$(usex protoc)"
+		-Dprotobuf_BUILD_SHARED_LIBS="yes"
+		-Dprotobuf_BUILD_TESTS="$(usex test)"
+
+		-Dprotobuf_DISABLE_RTTI="no"
+
+		-Dprotobuf_INSTALL="yes"
+		-Dprotobuf_TEST_XML_OUTDIR="$(usex test)"
+
+		-Dprotobuf_WITH_ZLIB="$(usex zlib)"
+		-Dprotobuf_VERBOSE="$(usex debug)"
+		-DCMAKE_MODULE_PATH="${S}/cmake"
+	)
+	if use protobuf ; then
+		if use examples ; then
+			mycmakeargs+=(
+				-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
+				-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=( -Dprotobuf_USE_EXTERNAL_GTEST="yes" )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	cmake-multilib_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+src_test() {
+	local -x srcdir="${S}/src"
+
+	local -x TEST_TMPDIR="${T%/}/TEST_TMPDIR_${ABI}"
+	mkdir -m 777 "${TEST_TMPDIR}" || die
+
+	setup_test_env() {
+		ln -sr "${S}/src" "${BUILD_DIR}/include" || die
+	}
+
+	multilib_foreach_abi setup_test_env
+
+	# Do headstands for LTO # 942985
+	local -x GTEST_FILTER
+	GTEST_FILTER="-FileDescriptorSetSource/EncodeDecodeTest*"
+
+	cmake-multilib_src_test
+
+	GTEST_FILTER="${GTEST_FILTER//-/}"
+
+	cmake-multilib_src_test
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf$(get_libname ${SLOT#*/})"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${FILESDIR}/proto.vim"
+
+	if use emacs; then
+		elisp-install "${PN}" editors/protobuf-mode.el*
+		elisp-site-file-install "${FILESDIR}/70${PN}-gentoo.el"
+	fi
+
+	if use examples; then
+		DOCS+=(examples)
+		docompress -x "/usr/share/doc/${PF}/examples"
+	fi
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}

sdk_container/src/third_party/portage-stable/dev-libs/protobuf/protobuf-9999.ebuild

@@ -1,4 +1,4 @@
-# Copyright 2008-2024 Gentoo Authors
+# Copyright 2008-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -30,32 +30,29 @@ LICENSE="BSD"
 SLOT="0/${MY_SLOT}.0"
 IUSE="conformance debug emacs examples +libprotoc libupb +protobuf +protoc test zlib"
 
+# Require protobuf for the time being
 REQUIRED_USE="
-	|| (
-		libprotoc
-		libupb
 	protobuf
-		protoc
-	)
+	examples? ( protobuf protoc )
+	libprotoc? ( protobuf )
+	libupb? (	protobuf )
+	protoc? ( protobuf )
 "
 
 RESTRICT="!test? ( test )"
 
 BDEPEND="
 	emacs? ( app-editors/emacs:* )
-	!protobuf? (
-		>=dev-libs/protobuf-${PV}
-	)
 "
 
 COMMON_DEPEND="
-	dev-libs/jsoncpp[${MULTILIB_USEDEP}]
 	>=dev-cpp/abseil-cpp-${ABSEIL_MIN_VER}:=[${MULTILIB_USEDEP}]
 	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )
 "
 
 DEPEND="
 	${COMMON_DEPEND}
+	conformance? ( dev-libs/jsoncpp[${MULTILIB_USEDEP}] )
 	test? ( >=dev-cpp/gtest-1.11[${MULTILIB_USEDEP}] )
 "
 RDEPEND="
@@ -64,7 +61,6 @@ RDEPEND="
 "
 
 PATCHES=(
-	"${FILESDIR}/${PN}-26.1-disable-32-bit-tests.patch"
 	"${FILESDIR}/${PN}-23.3-static_assert-failure.patch"
 	"${FILESDIR}/${PN}-27.4-findJsonCpp.patch"
 	"${FILESDIR}/${PN}-28.0-disable-test_upb-lto.patch"
@@ -84,7 +80,6 @@ multilib_src_configure() {
 		-Dprotobuf_JSONCPP_PROVIDER="package"
 
 		-Dprotobuf_BUILD_CONFORMANCE="$(usex test "$(usex conformance)")"
-		-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
 		-Dprotobuf_BUILD_LIBPROTOC="$(usex libprotoc)"
 		-Dprotobuf_BUILD_LIBUPB="$(usex libupb)"
 		-Dprotobuf_BUILD_PROTOBUF_BINARIES="$(usex protobuf)"
@@ -95,13 +90,21 @@ multilib_src_configure() {
 		-Dprotobuf_DISABLE_RTTI="no"
 
 		-Dprotobuf_INSTALL="yes"
-		-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
 		-Dprotobuf_TEST_XML_OUTDIR="$(usex test)"
 
 		-Dprotobuf_WITH_ZLIB="$(usex zlib)"
 		-Dprotobuf_VERBOSE="$(usex debug)"
 		-DCMAKE_MODULE_PATH="${S}/cmake"
 	)
+	if use protobuf ; then
+		if use examples ; then
+			mycmakeargs+=(
+				-Dprotobuf_BUILD_EXAMPLES="$(usex examples)"
+				-Dprotobuf_INSTALL_EXAMPLES="$(usex examples)"
+			)
+		fi
+	fi
+
 	use test && mycmakeargs+=( -Dprotobuf_USE_EXTERNAL_GTEST="yes" )
 
 	cmake_src_configure
@@ -127,6 +130,14 @@ src_test() {
 
 	multilib_foreach_abi setup_test_env
 
+	# Do headstands for LTO # 942985
+	local -x GTEST_FILTER
+	GTEST_FILTER="-FileDescriptorSetSource/EncodeDecodeTest*"
+
+	cmake-multilib_src_test
+
+	GTEST_FILTER="${GTEST_FILTER//-/}"
+
 	cmake-multilib_src_test
 }