--- a/src/google/protobuf/message_lite.cc	(index)
+++ b/src/google/protobuf/message_lite.cc	(working tree)
@@ -98,6 +98,8 @@ void ByteSizeConsistencyError(size_t byte_size_before_serialization,
   ABSL_LOG(FATAL) << "This shouldn't be called if all the sizes are equal.";
 }
 
+} // anonymous namespace
+
 TProtoStringType InitializationErrorMessage(absl::string_view action,
                                        const MessageLite& message) {
   return absl::StrCat("Can't ", action, " message of type \"",
@@ -106,6 +108,8 @@ TProtoStringType InitializationErrorMessage(absl::string_view action,
                       message.InitializationErrorString());
 }
 
+namespace {
+
 inline absl::string_view as_string_view(const void* data, int size) {
   return absl::string_view(static_cast<const char*>(data), size);
 }