Sync from Piper @acozzette/proto_github_202203101748

PROTOBUF_SYNC_PIPER
diff --git a/cmake/libprotoc.cmake b/cmake/libprotoc.cmake
index 317e4c2..22948fb 100644
--- a/cmake/libprotoc.cmake
+++ b/cmake/libprotoc.cmake
@@ -1,126 +1,126 @@
 set(libprotoc_files
-  ${protobuf_source_dir}/src/google/protobuf/compiler/code_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/command_line_interface.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_enum.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_enum_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_extension.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_file.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_helpers.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_map_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_message.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_message_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_padding_optimizer.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_parse_function_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_service.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_string_field.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/java/java_context.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_doc_comment.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_enum.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_enum_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_enum_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_enum_field_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_enum_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_extension.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_extension_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_file.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_generator_factory.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_helpers.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_kotlin_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_map_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_map_field_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message_builder.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message_builder_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message_field_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_message_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_name_resolver.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_primitive_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_primitive_field_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_service.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_shared_code_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_string_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_string_field_lite.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/js/js_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/js/well_known_types_embed.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_enum.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_enum.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_extension.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_extension.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_file.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_file.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_map_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_message.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_message.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_message_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_message_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_nsobject_methods.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_oneof.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_oneof.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_primitive_field.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_primitive_field.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/php/php_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/plugin.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/plugin.pb.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/python/python_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/python/python_helpers.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/python/python_pyi_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/ruby/ruby_generator.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/subprocess.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/zip_writer.cc
-  ${protobuf_source_dir}/src/google/protobuf/compiler/zip_writer.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/code_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/command_line_interface.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_enum.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_enum_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_extension.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_file.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_helpers.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_map_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_message.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_message_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_padding_optimizer.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_parse_function_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_primitive_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_service.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_string_field.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/java/java_context.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_doc_comment.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_enum.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_enum_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_enum_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_enum_field_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_enum_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_extension.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_extension_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_file.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_generator_factory.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_helpers.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_kotlin_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_map_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_map_field_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message_builder.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message_builder_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message_field_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_message_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_name_resolver.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_primitive_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_primitive_field_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_service.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_shared_code_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_string_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_string_field_lite.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/js/js_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/js/well_known_types_embed.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_enum.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_enum.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_enum_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_extension.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_extension.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_file.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_file.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_map_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_map_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_message.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_message.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_message_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_message_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_nsobject_methods.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_oneof.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_oneof.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_primitive_field.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_primitive_field.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/php/php_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/plugin.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/plugin.pb.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/python/python_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/python/python_helpers.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/python/python_pyi_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/ruby/ruby_generator.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/subprocess.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/zip_writer.cc
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/zip_writer.h
 )
 
 set(libprotoc_headers
-  ${protobuf_source_dir}/src/google/protobuf/compiler/code_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/command_line_interface.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_file.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_helpers.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/cpp/cpp_names.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_doc_comment.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_names.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/csharp/csharp_options.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_kotlin_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/java/java_names.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/js/js_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/objectivec/objectivec_helpers.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/php/php_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/plugin.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/python/python_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/python/python_pyi_generator.h
-  ${protobuf_source_dir}/src/google/protobuf/compiler/ruby/ruby_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/code_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/command_line_interface.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_file.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_helpers.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/cpp/cpp_names.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/csharp/csharp_doc_comment.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/csharp/csharp_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/csharp/csharp_names.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/csharp/csharp_options.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_kotlin_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/java/java_names.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/js/js_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/objectivec/objectivec_helpers.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/php/php_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/plugin.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/python/python_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/python/python_pyi_generator.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/compiler/ruby/ruby_generator.h
 )
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
@@ -132,12 +132,16 @@
 add_library(libprotoc ${protobuf_SHARED_OR_STATIC}
   ${libprotoc_files} ${libprotoc_headers} ${libprotoc_rc_files})
 if(protobuf_HAVE_LD_VERSION_SCRIPT)
-  target_link_options(libprotoc PRIVATE -Wl,--version-script=${protobuf_source_dir}/src/libprotoc.map)
+  if(${CMAKE_VERSION} VERSION_GREATER 3.13 OR ${CMAKE_VERSION} VERSION_EQUAL 3.13)
+    target_link_options(libprotoc PRIVATE -Wl,--version-script=${protobuf_SOURCE_DIR}/src/libprotoc.map)
+  elseif(protobuf_BUILD_SHARED_LIBS)
+    target_link_libraries(libprotoc PRIVATE -Wl,--version-script=${protobuf_SOURCE_DIR}/src/libprotoc.map)
+  endif()
   set_target_properties(libprotoc PROPERTIES
-    LINK_DEPENDS ${protobuf_source_dir}/src/libprotoc.map)
+    LINK_DEPENDS ${protobuf_SOURCE_DIR}/src/libprotoc.map)
 endif()
-target_link_libraries(libprotoc libprotobuf)
-if(MSVC AND protobuf_BUILD_SHARED_LIBS)
+target_link_libraries(libprotoc PRIVATE libprotobuf)
+if(protobuf_BUILD_SHARED_LIBS)
   target_compile_definitions(libprotoc
     PUBLIC  PROTOBUF_USE_DLLS
     PRIVATE LIBPROTOC_EXPORTS)
@@ -145,7 +149,7 @@
 set_target_properties(libprotoc PROPERTIES
     COMPILE_DEFINITIONS LIBPROTOC_EXPORTS
     VERSION ${protobuf_VERSION}
-    SOVERSION 30
+    SOVERSION 31
     OUTPUT_NAME ${LIB_PREFIX}protoc
     DEBUG_POSTFIX "${protobuf_DEBUG_POSTFIX}")
 add_library(protobuf::libprotoc ALIAS libprotoc)