Found the following significant warnings:
  ./third_party/protobuf-lite/google/protobuf/arena.h:306:24: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/repeated_field.h:441:34: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/repeated_field.h:504:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:206:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:207:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:208:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:209:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:210:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven.h:211:20: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven_lite.h:90:22: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven_lite.h:107:22: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
  ./third_party/protobuf-lite/google/protobuf/generated_message_table_driven_lite.h:129:22: warning: ‘template<class _Tp> struct std::is_pod’ is deprecated: use 'is_standard_layout && is_trivial' instead [-Wdeprecated-declarations]
See ‘/data/gannet/ripley/R/packages/tests-devel/sentencepiece.Rcheck/00install.out’ for details.
* used C++ compiler: ‘g++ (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)’