Found the following significant warnings:
  vcglib/vcg/space/index/spatial_hashing.h:39:38: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:125:33: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:182:34: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:254:39: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:578:40: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:692:41: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:783:44: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:846:37: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine.h:892:44: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine_loop.h:343:42: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/refine_loop.h:430:43: warning: ‘template<class _Arg, class _Result> struct std::unary_function’ is deprecated [-Wdeprecated-declarations]
  vcglib/vcg/complex/algorithms/geodesic.h:216:28: warning: ‘template<class _Arg1, class _Arg2, class _Result> struct std::binary_function’ is deprecated [-Wdeprecated-declarations]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/Rvcg.Rcheck/00install.out’ for details.