Build fails for version 31.1 on linux/aarch64 with clang

[phkrl]

What version of protobuf and what language are you using?
Version: v31.1 (also had with 31.0)
Language: C++

What operating system (Linux, Windows, ...) and version?
Artix Linux, aarch64

What runtime / compiler are you using (e.g., python version or gcc version)
clang 20.1.6

What did you do?
Trying to build with clang. The following cmake arguments are used:

    -B build
    -D CMAKE_BUILD_TYPE=None
    -D CMAKE_INSTALL_PREFIX=/usr
    -D CMAKE_C_COMPILER=/usr/bin/clang
    -D CMAKE_CXX_COMPILER=/usr/bin/clang++
    -D CMAKE_C_FLAGS="$CFLAGS -ffat-lto-objects"
    -D CMAKE_CXX_FLAGS="$CXXFLAGS -ffat-lto-objects"
    -D protobuf_BUILD_SHARED_LIBS=ON
    -D protobuf_USE_EXTERNAL_GTEST=ON
    -D protobuf_ABSL_PROVIDER=package
    -S "$pkgbase"
    -W no-dev

Here CFLAGS=-march=armv8-a -O2 -pipe -fstack-protector-strong -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security -fstack-clash-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer, CXXFLAGS="$CFLAGS -Wp,-D_GLIBCXX_ASSERTIONS"

Compiling with clang was an attempt to fix #22339.

What did you expect to see
Successful build; building with gcc15 works but resulting package cannot be used for building other packages (e.g. grpc)

What did you see instead?

/usr/bin/clang++ -march=armv8-a -O2 -pipe -fstack-protector-strong -fno-plt -fexceptions         -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security         -fstack-clash-protection         -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wp,-D_GLIBCXX_ASSERTIONS -ffat-lto-objects -Wl,-O1 -Wl,--sort-common -Wl,--as-needed -Wl,-z,relro -Wl,-z,now -Xlinker --dependency-file=CMakeFiles/tests.dir/link.d CMakeFiles/tests.dir/src/google/protobuf/any_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/arena_align_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/arena_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/arenastring_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/arenaz_sampler_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/debug_counter_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/descriptor_database_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/descriptor_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/descriptor_visitor_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/drop_unknown_fields_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/dynamic_message_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/edition_message_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/extension_set_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/feature_resolver_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/generated_enum_util_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/generated_message_reflection_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/generated_message_tctable_lite_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/has_bits_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/inlined_string_field_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/internal_feature_helper_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/internal_message_util_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/map_field_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/map_test.cc.o 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CMakeFiles/tests.dir/src/google/protobuf/compiler/objectivec/line_consumer_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/objectivec/names_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/objectivec/text_format_decode_data_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/parser_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/php/generator_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/python/plugin_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/retention_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/ruby/ruby_generator_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/versions_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/coded_stream_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/io_win32_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/printer_death_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/printer_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/test_zero_copy_stream_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/tokenizer_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_sink_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_stream_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/delimited_message_util_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/field_comparator_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/field_mask_util_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/message_differencer_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/time_util_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/util/type_resolver_util_test.cc.o CMakeFiles/tests.dir/src/google/protobuf/stubs/common_unittest.cc.o CMakeFiles/tests.dir/src/google/protobuf/test_util_lite.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/annotation_test_util.cc.o CMakeFiles/tests.dir/src/google/protobuf/reflection_tester.cc.o CMakeFiles/tests.dir/src/google/protobuf/test_util.cc.o CMakeFiles/tests.dir/src/google/protobuf/testing/file.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/command_line_interface_tester.cc.o CMakeFiles/tests.dir/src/google/protobuf/compiler/mock_code_generator.cc.o CMakeFiles/tests.dir/src/google/protobuf/testing/googletest.cc.o -o tests  -Wl,-rpath,/build/protobuf/src/build:/build/protobuf/src/build/third_party/utf8_ran/usr/bin/ld: CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_stream_unittest.cc.o: in function `google::protobuf::io::(anonymous namespace)::CordInputStreamTest_SkipToEnd_Test::TestBody()':
zero_copy_stream_unittest.cc:(.text+0x71e0): undefined reference to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_'
/usr/bin/ld: zero_copy_stream_unittest.cc:(.text+0x71ec): undefined reference to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_'
/usr/bin/ld: CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_stream_unittest.cc.o: in function `google::protobuf::io::(anonymous namespace)::CordOutputStreamTest_DonateCordAndPartialCordBufferAndUseExtraCapacity_Test::TestBody()':
zero_copy_stream_unittest.cc:(.text+0xd554): undefined reference to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_'
/usr/bin/ld: zero_copy_stream_unittest.cc:(.text+0xd560): undefined reference to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_'
/usr/bin/ld: CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_stream_unittest.cc.o: in function `google::protobuf::io::(anonymous namespace)::CordOutputStreamTest_DonateFullCordBufferAndCord_Test::TestBody()':
zero_copy_stream_unittest.cc:(.text+0xef28): undefined reference to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_'
/usr/bin/ld: CMakeFiles/tests.dir/src/google/protobuf/io/zero_copy_stream_unittest.cc.o:zero_copy_stream_unittest.cc:(.text+0xef34): more undefined references to `_ZN4absl12lts_202505124CordC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEETnNSt9enable_ifIXsr3std7is_sameIT_S8_EE5valueEiE4typeELi0EEEOSA_' follow
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
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Installed abseil-cpp version: 20250512.1-1