??undefined reference to TiXmlString::nullrep

[Mee@china]

g++ -g -O -Wall   -I.  -I/home/mee/c2c2/comm/export_include/cgi_comm_include -I./tinyxml/   -o c2c_error_tool c2c_error_tool.cpp c2c_error_manager.cpp -L./tinyxml/ -ltinyxml
/tmp/ccPqU54E.o: In function `TiXmlString::quit(void)':
/usr/lib/gcc-lib/i386-slackware-linux/2.95.3/../../../../include/g++-3/stl_vector.h(.TiXmlString::gnu.linkonce.t.quit(void)+0xb): undefined reference to `TiXmlString::nullrep_'
collect2: ld returned 1 exit status
make: *** [c2c_error_tool] Error 1

why?

[Davidbrcz]

I have in makefile desactivated STL_SUPPORT and I have no problem at compilation.