datastore/contrib/google-protobuf-cmake/CMakeLists.txt

option(ENABLE_PROTOBUF "Enable protobuf" ${ENABLE_LIBRARIES})

if(NOT ENABLE_PROTOBUF)
  message(STATUS "Not using protobuf")
  return()
endif()

# To avoid errors "'X' does not refer to a value" while using `offsetof` function.
set(CMAKE_CXX_STANDARD 17)

set(Protobuf_INCLUDE_DIR "${Datastore_SOURCE_DIR}/contrib/google-protobuf/src")
if(OS_FREEBSD AND SANITIZE STREQUAL "address")
  # ../contrib/protobuf/src/google/protobuf/arena_impl.h:45:10: fatal error: 'sanitizer/asan_interface.h' file not found
  # #include <sanitizer/asan_interface.h>
  if(LLVM_INCLUDE_DIRS)
    set(Protobuf_INCLUDE_DIR "${Protobuf_INCLUDE_DIR}" ${LLVM_INCLUDE_DIRS})
  else()
    message(${RECONFIGURE_MESSAGE_LEVEL} "Can't use protobuf on FreeBSD with address sanitizer without LLVM")
    return()
  endif()
endif()

set(protobuf_source_dir "${Datastore_SOURCE_DIR}/contrib/google-protobuf")
set(protobuf_binary_dir "${Datastore_BINARY_DIR}/contrib/google-protobuf")

add_definitions(-DGOOGLE_PROTOBUF_CMAKE_BUILD)

add_definitions(-DHAVE_PTHREAD)
add_definitions(-DHAVE_ZLIB)

include_directories(
  ${protobuf_binary_dir}
  ${protobuf_source_dir}/src
)

add_library(utf8_range
    ${protobuf_source_dir}/third_party/utf8_range/naive.c
    ${protobuf_source_dir}/third_party/utf8_range/range2-neon.c
    ${protobuf_source_dir}/third_party/utf8_range/range2-sse.c
)
include_directories(${protobuf_source_dir}/third_party/utf8_range)

add_library(utf8_validity
    ${protobuf_source_dir}/third_party/utf8_range/utf8_range.c
)
target_link_libraries(utf8_validity PUBLIC absl::strings)

set(protobuf_absl_used_targets
    absl::absl_check
    absl::absl_log
    absl::algorithm
    absl::base
    absl::bind_front
    absl::bits
    absl::btree
    absl::cleanup
    absl::cord
    absl::core_headers
    absl::debugging
    absl::die_if_null
    absl::dynamic_annotations
    absl::flags
    absl::flat_hash_map
    absl::flat_hash_set
    absl::function_ref
    absl::hash
    absl::layout
    absl::log_initialize
    absl::log_severity
    absl::memory
    absl::node_hash_map
    absl::node_hash_set
    absl::optional
    absl::span
    absl::status
    absl::statusor
    absl::strings
    absl::synchronization
    absl::time
    absl::type_traits
    absl::utility
    absl::variant
)

set(libprotobuf_lite_files
  ${protobuf_source_dir}/src/google/protobuf/any_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/arena.cc
  ${protobuf_source_dir}/src/google/protobuf/arena_align.cc
  ${protobuf_source_dir}/src/google/protobuf/arenastring.cc
  ${protobuf_source_dir}/src/google/protobuf/arenaz_sampler.cc
  ${protobuf_source_dir}/src/google/protobuf/extension_set.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_enum_util.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_tctable_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_util.cc
  ${protobuf_source_dir}/src/google/protobuf/implicit_weak_message.cc
  ${protobuf_source_dir}/src/google/protobuf/inlined_string_field.cc
  ${protobuf_source_dir}/src/google/protobuf/io/coded_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/io/io_win32.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/map.cc
  ${protobuf_source_dir}/src/google/protobuf/message_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/parse_context.cc
  ${protobuf_source_dir}/src/google/protobuf/repeated_field.cc
  ${protobuf_source_dir}/src/google/protobuf/repeated_ptr_field.cc
  ${protobuf_source_dir}/src/google/protobuf/stubs/common.cc
  ${protobuf_source_dir}/src/google/protobuf/wire_format_lite.cc
)

add_library(_libprotobuf-lite ${libprotobuf_lite_files})
if (NOT USE_MUSL)
    target_link_libraries(_libprotobuf-lite pthread)
endif()
target_link_libraries(_libprotobuf-lite
    utf8_validity)
if(${CMAKE_SYSTEM_NAME} STREQUAL "Android")
    target_link_libraries(_libprotobuf-lite log)
endif()
target_include_directories(_libprotobuf-lite SYSTEM PUBLIC ${protobuf_source_dir}/src)
add_library(protobuf::libprotobuf-lite ALIAS _libprotobuf-lite)


set(libprotobuf_files
  ${protobuf_source_dir}/src/google/protobuf/any.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/api.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/duration.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/empty.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/field_mask.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/source_context.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/struct.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/timestamp.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/type.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/wrappers.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/any.cc
  ${protobuf_source_dir}/src/google/protobuf/any_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/arena.cc
  ${protobuf_source_dir}/src/google/protobuf/arena_align.cc
  ${protobuf_source_dir}/src/google/protobuf/arenastring.cc
  ${protobuf_source_dir}/src/google/protobuf/arenaz_sampler.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/importer.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/parser.cc
  ${protobuf_source_dir}/src/google/protobuf/cpp_features.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/descriptor.cc
  ${protobuf_source_dir}/src/google/protobuf/descriptor.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/descriptor_database.cc
  ${protobuf_source_dir}/src/google/protobuf/dynamic_message.cc
  ${protobuf_source_dir}/src/google/protobuf/extension_set.cc
  ${protobuf_source_dir}/src/google/protobuf/extension_set_heavy.cc
  ${protobuf_source_dir}/src/google/protobuf/feature_resolver.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_enum_util.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_bases.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_reflection.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_tctable_full.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_tctable_gen.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_tctable_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/generated_message_util.cc
  ${protobuf_source_dir}/src/google/protobuf/implicit_weak_message.cc
  ${protobuf_source_dir}/src/google/protobuf/inlined_string_field.cc
  ${protobuf_source_dir}/src/google/protobuf/io/coded_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/io/gzip_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/io/io_win32.cc
  ${protobuf_source_dir}/src/google/protobuf/io/printer.cc
  ${protobuf_source_dir}/src/google/protobuf/io/strtod.cc
  ${protobuf_source_dir}/src/google/protobuf/io/tokenizer.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_sink.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl.cc
  ${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/lexer.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/message_path.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/parser.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/unparser.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/untyped_message.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/writer.cc
  ${protobuf_source_dir}/src/google/protobuf/json/internal/zero_copy_buffered_stream.cc
  ${protobuf_source_dir}/src/google/protobuf/json/json.cc
  ${protobuf_source_dir}/src/google/protobuf/map.cc
  ${protobuf_source_dir}/src/google/protobuf/map_field.cc
  ${protobuf_source_dir}/src/google/protobuf/micro_string.cc
  ${protobuf_source_dir}/src/google/protobuf/message.cc
  ${protobuf_source_dir}/src/google/protobuf/message_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/parse_context.cc
  ${protobuf_source_dir}/src/google/protobuf/port.cc
  ${protobuf_source_dir}/src/google/protobuf/raw_ptr.cc
  ${protobuf_source_dir}/src/google/protobuf/reflection_mode.cc
  ${protobuf_source_dir}/src/google/protobuf/reflection_ops.cc
  ${protobuf_source_dir}/src/google/protobuf/repeated_field.cc
  ${protobuf_source_dir}/src/google/protobuf/repeated_ptr_field.cc
  ${protobuf_source_dir}/src/google/protobuf/service.cc
  ${protobuf_source_dir}/src/google/protobuf/stubs/common.cc
  ${protobuf_source_dir}/src/google/protobuf/text_format.cc
  ${protobuf_source_dir}/src/google/protobuf/unknown_field_set.cc
  ${protobuf_source_dir}/src/google/protobuf/util/delimited_message_util.cc
  ${protobuf_source_dir}/src/google/protobuf/util/field_comparator.cc
  ${protobuf_source_dir}/src/google/protobuf/util/field_mask_util.cc
  ${protobuf_source_dir}/src/google/protobuf/util/message_differencer.cc
  ${protobuf_source_dir}/src/google/protobuf/util/time_util.cc
  ${protobuf_source_dir}/src/google/protobuf/util/type_resolver_util.cc
  ${protobuf_source_dir}/src/google/protobuf/wire_format.cc
  ${protobuf_source_dir}/src/google/protobuf/wire_format_lite.cc
)

add_library(_libprotobuf ${libprotobuf_lite_files} ${libprotobuf_files})
if (ENABLE_FUZZING)
    target_compile_options(_libprotobuf PRIVATE "-fsanitize-recover=all")
endif()
if (NOT USE_MUSL)
    target_link_libraries(_libprotobuf pthread)
endif()
target_link_libraries(_libprotobuf
    ch_contrib::zlib
    utf8_validity
    ${protobuf_absl_used_targets})
if(${CMAKE_SYSTEM_NAME} STREQUAL "Android")
    target_link_libraries(_libprotobuf log)
endif()
target_include_directories(_libprotobuf SYSTEM PUBLIC ${protobuf_source_dir}/src)
add_library(protobuf::libprotobuf ALIAS _libprotobuf)


set(libprotoc_files
  ${protobuf_source_dir}/src/google/protobuf/compiler/code_generator.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/code_generator_lite.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/command_line_interface.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/enum.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/extension.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_chunk.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/cord_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/enum_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/map_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/message_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/primitive_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/string_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/field_generators/string_view_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/file.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/generator.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/helpers.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/message.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/message_layout_helper.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/parse_function_generator.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/service.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/tracker.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_enum.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_enum_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_field_base.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_generator.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_helpers.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_map_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_message.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_message_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_reflection_class.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_repeated_enum_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_repeated_message_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_repeated_primitive_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_source_generator_base.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_wrapper_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/names.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/context.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/doc_comment.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/field_common.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/file.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/enum.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/enum_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/extension.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/generator_factory.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/make_field_gens.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/map_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/message.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/message_builder.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/message_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/primitive_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/service.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/full/string_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/generator.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/helpers.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/internal_helpers.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_features.pb.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/enum.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/enum_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/extension.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/generator_factory.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/make_field_gens.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/map_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/message.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/message_builder.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/message_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/primitive_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/lite/string_field.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/message_serialization.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/java/name_resolver.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/oneof.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/plugin.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/retention.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/rust/accessors/accessors.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/rust/accessors/default_value.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/rust/accessors/repeated_field.cc
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  ${protobuf_source_dir}/src/google/protobuf/compiler/rust/accessors/singular_message.cc
  ${protobuf_source_dir}/src/google/protobuf/compiler/rust/accessors/singular_scalar.cc
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  ${protobuf_source_dir}/upb/reflection/def_pool.c
  ${protobuf_source_dir}/upb/reflection/def_type.c
  ${protobuf_source_dir}/upb/reflection/desc_state.c
  ${protobuf_source_dir}/upb/reflection/enum_def.c
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  ${protobuf_source_dir}/upb/reflection/enum_value_def.c
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  ${protobuf_source_dir}/upb/reflection/field_def.c
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  ${protobuf_source_dir}/upb/reflection/internal/strdup2.c
  ${protobuf_source_dir}/upb/reflection/message.c
  ${protobuf_source_dir}/upb/reflection/message_def.c
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  ${protobuf_source_dir}/upb/reflection/method_def.c
  ${protobuf_source_dir}/upb/reflection/oneof_def.c
  ${protobuf_source_dir}/upb/reflection/service_def.c
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  ${protobuf_source_dir}/upb/wire/encode.c
  ${protobuf_source_dir}/upb_generator/common.cc
  ${protobuf_source_dir}/upb_generator/common/names.cc
  ${protobuf_source_dir}/upb_generator/file_layout.cc
  ${protobuf_source_dir}/upb_generator/minitable/fasttable.cc
  ${protobuf_source_dir}/upb_generator/minitable/generator.cc
  ${protobuf_source_dir}/upb_generator/minitable/names.cc
  ${protobuf_source_dir}/upb_generator/minitable/names_internal.cc
  ${protobuf_source_dir}/upb_generator/plugin.cc
)

add_library(_libprotoc ${libprotoc_files})
target_link_libraries(_libprotoc
    _libprotobuf
    ${protobuf_absl_used_targets})
target_include_directories(_libprotoc PRIVATE
  ${protobuf_source_dir}
  ${protobuf_source_dir}/upb/reflection/cmake
)
add_library(protobuf::libprotoc ALIAS _libprotoc)

set(protoc_files ${protobuf_source_dir}/src/google/protobuf/compiler/main.cc)
add_executable(protoc ${protoc_files})
target_link_libraries(protoc _libprotoc _libprotobuf)
if (NOT USE_MUSL)
    target_link_libraries(protoc pthread)
endif()
target_link_libraries(protoc
    utf8_validity
    ${protobuf_absl_used_targets})
target_include_directories(protoc PRIVATE
    ${protobuf_source_dir}
    ${protobuf_source_dir}/upb/reflection/cmake
)
add_executable(protobuf::protoc ALIAS protoc)

if (ENABLE_FUZZING)
    # `protoc` will be built with sanitizer and it could fail during Datastore build
    # It easily reproduces in oss-fuzz building pipeline
    # To avoid this we can try to build `protoc` without any sanitizer with option `-fno-sanitize=all`, but
    # it this case we will face with linker errors, because libcxx still will be built with sanitizer
    # So, we can simply suppress all of these failures with a combination this flag and an environment variable
    # export MSAN_OPTIONS=exit_code=0
    target_compile_options(protoc PRIVATE "-fsanitize-recover=all")
endif()

add_native_target (protoc)
if (NOT CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME OR NOT CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL CMAKE_SYSTEM_PROCESSOR OR USE_MUSL)
    set_target_properties (protoc PROPERTIES IMPORTED_LOCATION "${PROJECT_BINARY_DIR}/native/contrib/google-protobuf-cmake/protoc")
endif()

include("${Datastore_SOURCE_DIR}/contrib/google-protobuf-cmake/protobuf_generate.cmake")

# These files needs to be installed to make it possible that users can use well-known protobuf types
set(google_proto_files
  ${protobuf_source_dir}/src/google/protobuf/any.proto
  ${protobuf_source_dir}/src/google/protobuf/api.proto
  ${protobuf_source_dir}/src/google/protobuf/descriptor.proto
  ${protobuf_source_dir}/src/google/protobuf/duration.proto
  ${protobuf_source_dir}/src/google/protobuf/empty.proto
  ${protobuf_source_dir}/src/google/protobuf/field_mask.proto
  ${protobuf_source_dir}/src/google/protobuf/source_context.proto
  ${protobuf_source_dir}/src/google/protobuf/struct.proto
  ${protobuf_source_dir}/src/google/protobuf/timestamp.proto
  ${protobuf_source_dir}/src/google/protobuf/type.proto
  ${protobuf_source_dir}/src/google/protobuf/wrappers.proto
)

add_library(_protobuf INTERFACE)
target_link_libraries(_protobuf INTERFACE _libprotobuf)
target_include_directories(_protobuf INTERFACE "${Protobuf_INCLUDE_DIR}")
set_target_properties(_protobuf PROPERTIES google_proto_files "${google_proto_files}")
add_library(ch_contrib::protobuf ALIAS _protobuf)

add_library(_protoc INTERFACE)
target_link_libraries(_protoc INTERFACE _libprotoc _libprotobuf)
target_include_directories(_protoc INTERFACE "${Protobuf_INCLUDE_DIR}")
add_library(ch_contrib::protoc ALIAS _protoc)