ortools: utils: keep compatibility with protobuf < 26

2025-06-18 18:05:38 +02:00
parent 9fa309b358
commit 78b662a2b2
1 changed files with 4 additions and 0 deletions
--- a/ortools/util/file_util.cc
+++ b/ortools/util/file_util.cc
@@ -166,7 +166,11 @@ absl::Status WriteProtoToFile(absl::string_view filename,
    case ProtoWriteFormat::kJson: {
      google::protobuf::util::JsonPrintOptions options;
      options.add_whitespace = true;
+#if PROTOBUF_VERSION >= 5026000  // Version 26.0.0
      options.always_print_fields_with_no_presence = true;
+#else
+      options.always_print_primitive_fields = true;
+#endif
      options.preserve_proto_field_names = true;
      if (!google::protobuf::util::MessageToJsonString(proto, &output_string,
                                                       options)