I am building a itkDB/sample/DB using g++ version 3.4.6, on x86_64- redhat-linux machine. during linking, I see some strange undefs. ..... .... : undefined reference to `std:_default_alloc_template<true, 0>::alloacate(...)` <cadence_5141_install_path: tools/itkDB/lib64/ itkDB.a(bCompTypeRoot.o(.gnu.linkonce.t....: In function `std:_Rb_tree<unsigned long, unsigned long....>::_M_create_node(unsigned long const&) .... ... something is missing in Makefile? any clues? thanks,