Found the following significant warnings:
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/Rcpp/include/Rcpp/Language.h:180:36: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/Rcpp/include/Rcpp/Language.h:197:37: warning: ‘template<class _Arg1, class _Arg2, class _Result> struct std::binary_function’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/Rcpp/include/Rcpp/StringTransformer.h:30:47: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/RcppParallel/include/tbb/concurrent_hash_map.h:343:23: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/RcppParallel/include/tbb/internal/_concurrent_queue_impl.h:744:21: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/RcppParallel/include/tbb/internal/_concurrent_queue_impl.h:1003:21: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/RcppParallel/include/tbb/internal/_concurrent_unordered_impl.h:67:36: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
  /home/hornik/tmp/R.check/r-devel-gcc/Work/build/Packages/RcppParallel/include/RcppParallel/RMatrix.h:18:24: warning: ‘template<class _Category, class _Tp, class _Distance, class _Pointer, class _Reference> struct std::iterator’ is deprecated [-Wdeprecated-declarations]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/seqR.Rcheck/00install.out’ for details.