gcc 3.2에서 stl쓰기?

stl을 이용해서 프로그램을 짯는데
gcc 2.96에서는 별문제 없는게 3.2에서는 문제가 많네여

unsigned char타입의 String class가 필요해서 담과 같이 정의해서 쓰고있읍니다.
typedef basic_string<unsigned char> USTRING;

Object파일을 만들때는 별문제 없던게 실행화일을 만들때 담과 같은 에러가 떨어집니다.

g++ -g  -DDEBUG  -o TPacket.o -c TPacket.cpp -I../common 
g++ -g  -DDEBUG  -o smp.o -c smp.cpp -I../common 
g++ -g  -DDEBUG  -o Queue.o -c Queue.cpp -I../common 
g++ -g  -DDEBUG  -o sml.o -c sml.cpp -I../common 
g++ -g  -DDEBUG  -o sma.o -c sma.cpp -I../common 
g++ -g  -DDEBUG  -o monitoring.o -c monitoring.cpp -I../common 
g++ -g  -DDEBUG   -D_REENTRANT -D_PTHREADS -o sma TPacket.o smp.o Queue.o sml.o  sma.o  monitoring.o  -lpthread   -L../common	-lpmsb_return 
Queue.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::assign(unsigned char const*)':
/home/mclee77/PMSB/monitoring/Queue.cpp:6: undefined reference to `std::char_traits<unsigned char>::length(unsigned char const*)'
Queue.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::assign(unsigned char const*, unsigned)':
/home/mclee77/PMSB/monitoring/Queue.cpp:8: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
/home/mclee77/PMSB/monitoring/Queue.cpp:8: undefined reference to `std::char_traits<unsigned char>::move(unsigned char*, unsigned char const*, unsigned)'
Queue.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::_Rep::_M_clone(std::allocator<unsigned char> const&, unsigned)':
/home/mclee77/PMSB/monitoring/Queue.cpp:8: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
Queue.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::_M_mutate(unsigned, unsigned, unsigned)':
/home/mclee77/PMSB/monitoring/Queue.cpp:8: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
/home/mclee77/PMSB/monitoring/Queue.cpp:8: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
/home/mclee77/PMSB/monitoring/Queue.cpp:23: undefined reference to `std::char_traits<unsigned char>::move(unsigned char*, unsigned char const*, unsigned)'
Queue.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::_S_copy_chars(unsigned char*, unsigned char const*, unsigned char const*)':
/home/mclee77/PMSB/monitoring/Queue.cpp:6: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
sml.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::basic_string[in-charge](unsigned char const*, std::allocator<unsigned char> const&)':
/home/mclee77/PMSB/monitoring/sml.cpp:5: undefined reference to `std::char_traits<unsigned char>::length(unsigned char const*)'
sml.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::append(unsigned char const*)':
/home/mclee77/PMSB/monitoring/sml.cpp:5: undefined reference to `std::char_traits<unsigned char>::length(unsigned char const*)'
sml.o: In function `std::basic_string<unsigned char, std::char_traits<unsigned char>, std::allocator<unsigned char> >::_S_copy_chars(unsigned char*, unsigned char*, unsigned char*)':
/home/mclee77/PMSB/monitoring/sml.cpp:5: undefined reference to `std::char_traits<unsigned char>::copy(unsigned char*, unsigned char const*, unsigned)'
collect2: ld returned 1 exit status
make: *** [sma] 오류 1

그리구 unsinged char형으로 string 같은 클래스를 구현할려면 stl에서 어떤걸로 해야되나여?