dev-libs/protobuf: add 3.19.6, 3.20.3, 21.8

Signed-off-by: Thibaud CANALE <thican@thican.net>
Signed-off-by: Sam James <sam@gentoo.org>

6 files changed, 705 insertions, 10 deletions

diff --git a/dev-libs/protobuf/Manifest b/dev-libs/protobuf/Manifest
index dfb0564c5120..74313749d43f 100644
--- a/dev-libs/protobuf/Manifest
+++ b/dev-libs/protobuf/Manifest
@@ -1,2 +1,5 @@
+DIST protobuf-21.8.tar.gz 5110670 BLAKE2B 3c1b0c857a86e9586481d63896341d0cb11290dbd710d87a6f7889d34f5f262abe2986a29ed19a730f8fa5df0b5c62d77a4db6aa415a72b239f7483ae8d6380c SHA512 cb17be759311e91172801add1f88fe7a0291b547170c40d2e3303f5c248570dddeade96bd48740edd628215f55269c97475e2f4c4a41c50f1018d525f52036cb
 DIST protobuf-3.19.3.tar.gz 5293258 BLAKE2B c05b70ffca97f7166ea6a511a36907eed125edf1ebf17f908718221d9b851be84dfb2b1b39973f2faf35f6ade630e6ba4f9e8b91b8fbc922c5db97079323ee6e SHA512 1c003e7cbc8eae6a038f46e688b401ee202ba47f502561e909df79770f6e8b7daf3dc1ccc727e31bfb5b52cd04cb4fef7d2d2a28d650c13f396872ad4aa076c6
+DIST protobuf-3.19.6.tar.gz 5299501 BLAKE2B 3121f76b95f83c5309ce49ce296b738eff7be9d3a5093c564fbe2339fb5f3729e406f1b44bfcc05feb0d31ab63838bb4f54685017977c73a33b91215a6776072 SHA512 8f92242f2be8e1bbfba41341c87709ad91ad83b8b3e3df88bb430411541d3399295f49291fd52b50e3487b0fce33181cb4d175685fd25aac72adfaee26a612d4
 DIST protobuf-3.20.1.tar.gz 5368262 BLAKE2B 1ce1aef2e4c4f3ea4863629cc75d89fe17d0c7ac0c342ac641c787456fd4a12756c2892a27ddadedc94a7201494ec84566638ce33a03cb0c867b04e9eee0edb3 SHA512 fde3eb9f13946887ddfd87df428c5615ad09aaf191e4478b24e98e5e13231feeff4e70b4ca6a2ff7d9b9b2e2c60bc1d5479526edeafa78f9a8ed3bef2e0bacb0
+DIST protobuf-3.20.3.tar.gz 5374320 BLAKE2B fb51f2a0ecf5b83235f5252051f8192ae377bb7a5e030c3f3e9435ccde25919c059830cf476e840fa6c970928a32c0075e213c9d5d4d9e3d3b24732c39a9fbfa SHA512 01d6703bdbe769a1200ee6e4ebcdcb99688ec21f576988c60d82ec36e0822820fb245fcb4ca53293143d53e666d748b5a0c6937bc659fb3cdc4cd9b05ed12a1c
diff --git a/dev-libs/protobuf/files/protobuf-3.20.2-protoc_input_output_files.patch b/dev-libs/protobuf/files/protobuf-3.20.2-protoc_input_output_files.patch
new file mode 100644
index 000000000000..e4bf6858974a
--- /dev/null
+++ b/dev-libs/protobuf/files/protobuf-3.20.2-protoc_input_output_files.patch
@@ -0,0 +1,240 @@
+https://github.com/protocolbuffers/protobuf/pull/235
+
+--- a/src/google/protobuf/compiler/command_line_interface.cc
++++ b/src/google/protobuf/compiler/command_line_interface.cc
+@@ -1112,6 +1112,28 @@
+   }
+
+   if (mode_ == MODE_ENCODE || mode_ == MODE_DECODE) {
++    bool success = false;
++    int in_fd = STDIN_FILENO;
++    int out_fd = STDOUT_FILENO;
++
++    if (!protobuf_in_path_.empty()) {
++      in_fd = open(protobuf_in_path_.c_str(), O_RDONLY);
++      if (in_fd == -1) {
++        std::cerr << protobuf_in_path_ << ": error: failed to open file." << std::endl;
++        return 1;
++      }
++    }
++    if (!protobuf_out_path_.empty()) {
++      out_fd = open(protobuf_out_path_.c_str(),
++                    O_WRONLY | O_CREAT | O_TRUNC,
++                    0644);
++      if (out_fd == -1) {
++        std::cerr << protobuf_out_path_ << ": error: failed to open file." << std::endl;
++        close(in_fd);
++        return 1;
++      }
++    }
++
+     if (codec_type_.empty()) {
+       // HACK:  Define an EmptyMessage type to use for decoding.
+       DescriptorPool pool;
+@@ -1120,13 +1142,20 @@
+       file.add_message_type()->set_name("EmptyMessage");
+       GOOGLE_CHECK(pool.BuildFile(file) != nullptr);
+       codec_type_ = "EmptyMessage";
+-      if (!EncodeOrDecode(&pool)) {
+-        return 1;
+-      }
++      success = EncodeOrDecode(&pool, in_fd, out_fd);
+     } else {
+-      if (!EncodeOrDecode(descriptor_pool.get())) {
+-        return 1;
+-      }
++      success = EncodeOrDecode(descriptor_pool.get(), in_fd, out_fd);
++    }
++
++    if (in_fd != STDIN_FILENO) {
++      close(in_fd);
++    }
++    if (out_fd != STDOUT_FILENO) {
++      close(out_fd);
++    }
++
++    if (!success) {
++      return 1;
+     }
+   }
+
+@@ -1165,6 +1194,11 @@
+   for (int i = 0; i < proto_path_.size(); i++) {
+     source_tree->MapPath(proto_path_[i].first, proto_path_[i].second);
+   }
++  if (mode_ == MODE_COMPILE &&
++      (!protobuf_in_path_.empty() || !protobuf_out_path_.empty())) {
++    std::cerr << "--protobuf_in and --protobuf_out are only valid with "
++         << "decode operations. Ignoring.";
++  }
+
+   // Map input files to virtual paths if possible.
+   if (!MakeInputsBeProtoPathRelative(source_tree, fallback_database)) {
+@@ -1888,6 +1922,12 @@
+   } else if (name == "--deterministic_output") {
+     deterministic_output_ = true;
+
++  } else if (name == "--protobuf_in") {
++    protobuf_in_path_ = value;
++
++  } else if (name == "--protobuf_out") {
++    protobuf_out_path_ = value;
++
+   } else if (name == "--error_format") {
+     if (value == "gcc") {
+       error_format_ = ERROR_FORMAT_GCC;
+@@ -2021,22 +2061,38 @@
+   --version                   Show version info and exit.
+   -h, --help                  Show this text and exit.
+   --encode=MESSAGE_TYPE       Read a text-format message of the given type
+-                              from standard input and write it in binary
+-                              to standard output.  The message type must
++                              from input protobuf file and write it in binary
++                              to output protobuf file.  The message type must
+                               be defined in PROTO_FILES or their imports.
++                              The input/output protobuf files are specified
++                              using the --protobuf_in and --protobuf_out
++                              command line flags.
+   --deterministic_output      When using --encode, ensure map fields are
+                               deterministically ordered. Note that this order
+                               is not canonical, and changes across builds or
+                               releases of protoc.
+   --decode=MESSAGE_TYPE       Read a binary message of the given type from
+-                              standard input and write it in text format
+-                              to standard output.  The message type must
++                              input protobuf file and write it in text format
++                              to output protobuf file.  The message type must
+                               be defined in PROTO_FILES or their imports.
++                              The input/output protobuf files are specified
++                              using the --protobuf_in and --protobuf_out
++                              command line flags.
+   --decode_raw                Read an arbitrary protocol message from
+-                              standard input and write the raw tag/value
+-                              pairs in text format to standard output.  No
++                              input protobuf file and write the raw tag/value
++                              pairs in text format to output protobuf file.  No
+                               PROTO_FILES should be given when using this
+-                              flag.
++                              flag.  The input/output protobuf files are
++                              specified using the --protobuf_in and
++                              --protobuf_out command line flags.
++  --protobuf_in=FILE          Absolute path to the protobuf file from which
++                              input of encoding/decoding operation will be
++                              read.  If omitted, input will be read from
++                              standard input.
++  --protobuf_out=FILE         Absolute path to the protobuf file to which
++                              output of encoding/decoding operation will be
++                              written.  If omitted, output will be written to
++                              standard output.
+   --descriptor_set_in=FILES   Specifies a delimited list of FILES
+                               each containing a FileDescriptorSet (a
+                               protocol buffer defined in descriptor.proto).
+@@ -2347,7 +2403,9 @@
+   return true;
+ }
+
+-bool CommandLineInterface::EncodeOrDecode(const DescriptorPool* pool) {
++bool CommandLineInterface::EncodeOrDecode(const DescriptorPool* pool,
++                                          int in_fd,
++                                          int out_fd) {
+   // Look up the type.
+   const Descriptor* type = pool->FindMessageTypeByName(codec_type_);
+   if (type == nullptr) {
+@@ -2359,15 +2417,15 @@
+   std::unique_ptr<Message> message(dynamic_factory.GetPrototype(type)->New());
+
+   if (mode_ == MODE_ENCODE) {
+-    SetFdToTextMode(STDIN_FILENO);
+-    SetFdToBinaryMode(STDOUT_FILENO);
++    SetFdToTextMode(in_fd);
++    SetFdToBinaryMode(out_fd);
+   } else {
+-    SetFdToBinaryMode(STDIN_FILENO);
+-    SetFdToTextMode(STDOUT_FILENO);
++    SetFdToBinaryMode(in_fd);
++    SetFdToTextMode(out_fd);
+   }
+
+-  io::FileInputStream in(STDIN_FILENO);
+-  io::FileOutputStream out(STDOUT_FILENO);
++  io::FileInputStream in(in_fd);
++  io::FileOutputStream out(out_fd);
+
+   if (mode_ == MODE_ENCODE) {
+     // Input is text.
+--- a/src/google/protobuf/compiler/command_line_interface.h
++++ b/src/google/protobuf/compiler/command_line_interface.h
+@@ -294,7 +294,9 @@
+       GeneratorContext* generator_context, std::string* error);
+
+   // Implements --encode and --decode.
+-  bool EncodeOrDecode(const DescriptorPool* pool);
++  bool EncodeOrDecode(const DescriptorPool* pool,
++                      int in_fd,
++                      int out_fd);
+
+   // Implements the --descriptor_set_out option.
+   bool WriteDescriptorSet(
+@@ -429,6 +431,13 @@
+   // parsed FileDescriptorSets to be used for loading protos.  Otherwise, empty.
+   std::vector<std::string> descriptor_set_in_names_;
+
++  // When using --encode / --decode / --decode_raw absolute path to the output
++  // file. (Empty string indicates write to STDOUT).
++  std::string protobuf_out_path_;
++  // When using --encode / --decode / --decode_raw, absolute path to the input
++  // file. (Empty string indicates read from STDIN).
++  std::string protobuf_in_path_;
++
+   // If --descriptor_set_out was given, this is the filename to which the
+   // FileDescriptorSet should be written.  Otherwise, empty.
+   std::string descriptor_set_out_name_;
+--- a/src/google/protobuf/compiler/command_line_interface_unittest.cc
++++ b/src/google/protobuf/compiler/command_line_interface_unittest.cc
+@@ -99,7 +99,7 @@
+   void SetUp() override;
+   void TearDown() override;
+
+-  // Runs the CommandLineInterface with the given command line.  The
++  // Run the CommandLineInterface with the given command line.  The
+   // command is automatically split on spaces, and the string "$tmpdir"
+   // is replaced with TestTempDir().
+   void Run(const std::string& command);
+@@ -2626,6 +2626,17 @@
+               std::string::npos);
+   }
+
++  void ExpectBinaryFilesMatch(const std::string &expected_file,
++                              const std::string &actual_file) {
++    std::string expected_output, actual_output;
++    ASSERT_TRUE(File::ReadFileToString(expected_file, &expected_output));
++    ASSERT_TRUE(File::ReadFileToString(actual_file, &actual_output));
++
++    // Don't use EXPECT_EQ because we don't want to print raw binary data to
++    // stdout on failure.
++    EXPECT_TRUE(expected_output == actual_output);
++  }
++
+  private:
+   void WriteUnittestProtoDescriptorSet() {
+     unittest_proto_descriptor_set_filename_ =
+@@ -2749,6 +2760,19 @@
+       "Can only use --deterministic_output with --encode.\n");
+ }
+
++TEST_P(EncodeDecodeTest, RedirectInputOutput) {
++  std::string out_file = TestTempDir() + "/golden_message_out.pbf";
++  EXPECT_TRUE(
++      Run(TestUtil::MaybeTranslatePath("net/proto2/internal/unittest.proto") +
++          " --encode=protobuf_unittest.TestAllTypes" +
++          " --protobuf_in=" + TestUtil::GetTestDataPath(
++              "net/proto2/internal/"
++              "testdata/text_format_unittest_data_oneof_implemented.txt") +
++          " --protobuf_out=" + out_file));
++  ExpectBinaryFilesMatch(out_file, TestUtil::GetTestDataPath(
++      "net/proto2/internal/testdata/golden_message_oneof_implemented"));
++}
++
+ INSTANTIATE_TEST_SUITE_P(FileDescriptorSetSource, EncodeDecodeTest,
+                          testing::Values(PROTO_PATH, DESCRIPTOR_SET_IN));
+ }  // anonymous namespace
diff --git a/dev-libs/protobuf/protobuf-21.8.ebuild b/dev-libs/protobuf/protobuf-21.8.ebuild
new file mode 100644
index 000000000000..523c763c265c
--- /dev/null
+++ b/dev-libs/protobuf/protobuf-21.8.ebuild
@@ -0,0 +1,148 @@
+# Copyright 2008-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools elisp-common flag-o-matic multilib-minimal toolchain-funcs
+
+if [[ "${PV}" == *9999 ]]; then
+	inherit git-r3
+
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=()
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos"
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="
+	https://developers.google.com/protocol-buffers/
+"
+
+LICENSE="BSD"
+SLOT="0/32"
+IUSE="emacs examples static-libs test zlib"
+RESTRICT="!test? ( test )"
+
+BDEPEND="emacs? ( app-editors/emacs:* )"
+DEPEND="test? ( >=dev-cpp/gtest-1.9[${MULTILIB_USEDEP}] )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+RDEPEND="emacs? ( app-editors/emacs:* )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-3.19.0-disable_no-warning-test.patch"
+	"${FILESDIR}/${PN}-3.19.0-system_libraries.patch"
+	"${FILESDIR}/${PN}-3.20.2-protoc_input_output_files.patch"
+)
+
+DOCS=(CHANGES.txt CONTRIBUTORS.txt README.md)
+
+src_prepare() {
+	default
+
+	# https://github.com/protocolbuffers/protobuf/issues/7413
+	sed -e "/^AC_PROG_CXX_FOR_BUILD$/d" -i configure.ac || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8082
+	sed -e "/^TEST_F(IoTest, LargeOutput) {$/,/^}$/d" -i src/google/protobuf/io/zero_copy_stream_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8459
+	sed \
+		-e "/^TEST(ArenaTest, BlockSizeSmallerThanAllocation) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-e "/^TEST(ArenaTest, SpaceAllocated_and_Used) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-i src/google/protobuf/arena_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8460
+	sed -e "/^TEST(AnyTest, TestPackFromSerializationExceedsSizeLimit) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" -i src/google/protobuf/any_test.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/9433
+	sed -e "/^[[:space:]]*static_assert(alignof(U) <= 8, \"\");$/d" -i src/google/protobuf/descriptor.cc || die
+
+	eautoreconf
+}
+
+src_configure() {
+	append-cppflags -DGOOGLE_PROTOBUF_NO_RTTI
+
+	if tc-ld-is-gold; then
+		# https://sourceware.org/bugzilla/show_bug.cgi?id=24527
+		tc-ld-disable-gold
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	local options=(
+		$(use_enable static-libs static)
+		$(use_with zlib)
+	)
+
+	if tc-is-cross-compiler; then
+		# Build system uses protoc when building, so protoc copy runnable on host is needed.
+		mkdir -p "${WORKDIR}/build" || die
+		pushd "${WORKDIR}/build" > /dev/null || die
+		ECONF_SOURCE="${S}" econf_build "${options[@]}"
+		options+=(--with-protoc="$(pwd)/src/protoc")
+		popd > /dev/null || die
+	fi
+
+	ECONF_SOURCE="${S}" econf "${options[@]}"
+}
+
+src_compile() {
+	multilib-minimal_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+multilib_src_compile() {
+	if tc-is-cross-compiler; then
+		emake -C "${WORKDIR}/build/src" protoc
+	fi
+
+	default
+}
+
+multilib_src_test() {
+	emake check
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${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
+}
diff --git a/dev-libs/protobuf/protobuf-3.19.6.ebuild b/dev-libs/protobuf/protobuf-3.19.6.ebuild
new file mode 100644
index 000000000000..8784499c1fd7
--- /dev/null
+++ b/dev-libs/protobuf/protobuf-3.19.6.ebuild
@@ -0,0 +1,151 @@
+# Copyright 2008-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools elisp-common flag-o-matic multilib-minimal toolchain-funcs
+
+if [[ "${PV}" == *9999 ]]; then
+	inherit git-r3
+
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=()
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos"
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="
+	https://developers.google.com/protocol-buffers/
+"
+
+LICENSE="BSD"
+SLOT="0/30"
+IUSE="emacs examples static-libs test zlib"
+RESTRICT="!test? ( test )"
+
+BDEPEND="emacs? ( app-editors/emacs:* )"
+DEPEND="test? ( >=dev-cpp/gtest-1.9[${MULTILIB_USEDEP}] )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+RDEPEND="emacs? ( app-editors/emacs:* )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-3.19.0-disable_no-warning-test.patch"
+	"${FILESDIR}/${PN}-3.19.0-system_libraries.patch"
+	"${FILESDIR}/${PN}-3.16.0-protoc_input_output_files.patch"
+)
+
+DOCS=(CHANGES.txt CONTRIBUTORS.txt README.md)
+
+src_prepare() {
+	default
+
+	# https://github.com/protocolbuffers/protobuf/issues/7413
+	sed -e "/^AC_PROG_CXX_FOR_BUILD$/d" -i configure.ac || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8082
+	sed -e "/^TEST_F(IoTest, LargeOutput) {$/,/^}$/d" -i src/google/protobuf/io/zero_copy_stream_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8459
+	sed \
+		-e "/^TEST(ArenaTest, BlockSizeSmallerThanAllocation) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-e "/^TEST(ArenaTest, SpaceAllocated_and_Used) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-i src/google/protobuf/arena_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8460
+	sed -e "/^TEST(AnyTest, TestPackFromSerializationExceedsSizeLimit) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" -i src/google/protobuf/any_test.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/9392
+	sed -e "s/^AC_PROG_OBJC$/AS_CASE([\$target_os], [darwin*], [AC_PROG_OBJC], [AM_CONDITIONAL([am__fastdepOBJC], [false])])/" -i configure.ac || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/9433
+	sed -e "/^[[:space:]]*static_assert(alignof(T) <= 8, \"\");$/d" -i src/google/protobuf/descriptor.cc || die
+
+	eautoreconf
+}
+
+src_configure() {
+	append-cppflags -DGOOGLE_PROTOBUF_NO_RTTI
+
+	if tc-ld-is-gold; then
+		# https://sourceware.org/bugzilla/show_bug.cgi?id=24527
+		tc-ld-disable-gold
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	local options=(
+		$(use_enable static-libs static)
+		$(use_with zlib)
+	)
+
+	if tc-is-cross-compiler; then
+		# Build system uses protoc when building, so protoc copy runnable on host is needed.
+		mkdir -p "${WORKDIR}/build" || die
+		pushd "${WORKDIR}/build" > /dev/null || die
+		ECONF_SOURCE="${S}" econf_build "${options[@]}"
+		options+=(--with-protoc="$(pwd)/src/protoc")
+		popd > /dev/null || die
+	fi
+
+	ECONF_SOURCE="${S}" econf "${options[@]}"
+}
+
+src_compile() {
+	multilib-minimal_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+multilib_src_compile() {
+	if tc-is-cross-compiler; then
+		emake -C "${WORKDIR}/build/src" protoc
+	fi
+
+	default
+}
+
+multilib_src_test() {
+	emake check
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${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
+}
diff --git a/dev-libs/protobuf/protobuf-3.20.3.ebuild b/dev-libs/protobuf/protobuf-3.20.3.ebuild
new file mode 100644
index 000000000000..cade7f688a49
--- /dev/null
+++ b/dev-libs/protobuf/protobuf-3.20.3.ebuild
@@ -0,0 +1,148 @@
+# Copyright 2008-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools elisp-common flag-o-matic multilib-minimal toolchain-funcs
+
+if [[ "${PV}" == *9999 ]]; then
+	inherit git-r3
+
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
+	EGIT_SUBMODULES=()
+else
+	SRC_URI="https://github.com/protocolbuffers/protobuf/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos"
+fi
+
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="
+	https://developers.google.com/protocol-buffers/
+"
+
+LICENSE="BSD"
+SLOT="0/31"
+IUSE="emacs examples static-libs test zlib"
+RESTRICT="!test? ( test )"
+
+BDEPEND="emacs? ( app-editors/emacs:* )"
+DEPEND="test? ( >=dev-cpp/gtest-1.9[${MULTILIB_USEDEP}] )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+RDEPEND="emacs? ( app-editors/emacs:* )
+	zlib? ( sys-libs/zlib[${MULTILIB_USEDEP}] )"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-3.19.0-disable_no-warning-test.patch"
+	"${FILESDIR}/${PN}-3.19.0-system_libraries.patch"
+	"${FILESDIR}/${PN}-3.20.2-protoc_input_output_files.patch"
+)
+
+DOCS=(CHANGES.txt CONTRIBUTORS.txt README.md)
+
+src_prepare() {
+	default
+
+	# https://github.com/protocolbuffers/protobuf/issues/7413
+	sed -e "/^AC_PROG_CXX_FOR_BUILD$/d" -i configure.ac || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8082
+	sed -e "/^TEST_F(IoTest, LargeOutput) {$/,/^}$/d" -i src/google/protobuf/io/zero_copy_stream_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8459
+	sed \
+		-e "/^TEST(ArenaTest, BlockSizeSmallerThanAllocation) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-e "/^TEST(ArenaTest, SpaceAllocated_and_Used) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" \
+		-i src/google/protobuf/arena_unittest.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/8460
+	sed -e "/^TEST(AnyTest, TestPackFromSerializationExceedsSizeLimit) {$/a\\  if (sizeof(void*) == 4) {\n    GTEST_SKIP();\n  }" -i src/google/protobuf/any_test.cc || die
+
+	# https://github.com/protocolbuffers/protobuf/issues/9433
+	sed -e "/^[[:space:]]*static_assert(alignof(U) <= 8, \"\");$/d" -i src/google/protobuf/descriptor.cc || die
+
+	eautoreconf
+}
+
+src_configure() {
+	append-cppflags -DGOOGLE_PROTOBUF_NO_RTTI
+
+	if tc-ld-is-gold; then
+		# https://sourceware.org/bugzilla/show_bug.cgi?id=24527
+		tc-ld-disable-gold
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	local options=(
+		$(use_enable static-libs static)
+		$(use_with zlib)
+	)
+
+	if tc-is-cross-compiler; then
+		# Build system uses protoc when building, so protoc copy runnable on host is needed.
+		mkdir -p "${WORKDIR}/build" || die
+		pushd "${WORKDIR}/build" > /dev/null || die
+		ECONF_SOURCE="${S}" econf_build "${options[@]}"
+		options+=(--with-protoc="$(pwd)/src/protoc")
+		popd > /dev/null || die
+	fi
+
+	ECONF_SOURCE="${S}" econf "${options[@]}"
+}
+
+src_compile() {
+	multilib-minimal_src_compile
+
+	if use emacs; then
+		elisp-compile editors/protobuf-mode.el
+	fi
+}
+
+multilib_src_compile() {
+	if tc-is-cross-compiler; then
+		emake -C "${WORKDIR}/build/src" protoc
+	fi
+
+	default
+}
+
+multilib_src_test() {
+	emake check
+}
+
+multilib_src_install_all() {
+	find "${ED}" -name "*.la" -delete || die
+
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+		die "Please update SLOT variable"
+	fi
+
+	insinto /usr/share/vim/vimfiles/syntax
+	doins editors/proto.vim
+	insinto /usr/share/vim/vimfiles/ftdetect
+	doins "${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
+}
diff --git a/dev-libs/protobuf/protobuf-9999.ebuild b/dev-libs/protobuf/protobuf-9999.ebuild
index 0e620717ec44..9f84c789877f 100644
--- a/dev-libs/protobuf/protobuf-9999.ebuild
+++ b/dev-libs/protobuf/protobuf-9999.ebuild
@@ -5,24 +5,23 @@ EAPI=8
 
 inherit autotools elisp-common flag-o-matic multilib-minimal toolchain-funcs
 
-if [[ "${PV}" == "9999" ]]; then
+if [[ "${PV}" == *9999 ]]; then
 	inherit git-r3
 
-	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf"
+	EGIT_REPO_URI="https://github.com/protocolbuffers/protobuf.git"
 	EGIT_SUBMODULES=()
-fi
-
-DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
-HOMEPAGE="https://developers.google.com/protocol-buffers/ https://github.com/protocolbuffers/protobuf"
-if [[ "${PV}" == "9999" ]]; then
-	SRC_URI=""
 else
-	SRC_URI="https://github.com/protocolbuffers/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	SRC_URI="https://github.com/protocolbuffers/protobuf/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos"
 fi
 
+DESCRIPTION="Google's Protocol Buffers - Extensible mechanism for serializing structured data"
+HOMEPAGE="
+	https://developers.google.com/protocol-buffers/
+"
+
 LICENSE="BSD"
-SLOT="0/31"
+SLOT="0/32"
 IUSE="emacs examples static-libs test zlib"
 RESTRICT="!test? ( test )"
 
@@ -116,6 +115,12 @@ multilib_src_test() {
 multilib_src_install_all() {
 	find "${ED}" -name "*.la" -delete || die
 
+	if [[ ! -f "${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}" ]]; then
+		eerror "No matching library found with SLOT variable, currently set: ${SLOT}\n" \
+			"Expected value: ${ED}/usr/$(get_libdir)/libprotobuf.so.${SLOT#*/}"
+		die "Please update SLOT variable"
+	fi
+
 	insinto /usr/share/vim/vimfiles/syntax
 	doins editors/proto.vim
 	insinto /usr/share/vim/vimfiles/ftdetect