Gentoo's Bugzilla –
Attachment 573510 Details for
Bug 683928sci-libs/tensorflow-1.13.1 with dev-libs/protobuf-3.7.1 - In file included from ???: /usr/include/google/bigtable/v2/bigtable.pb.h:1869:30: error: 'google::protobuf::uint8* google::bigtable::v2::CheckAndMutateRowResponse::InternalSerializeWithCachedSizesT