[Boost-users] Problems with building filesystem under win32 using vc6 and stlport

Recently I begin to use stlport in my programs, and I build boost filesystem under win32 using bjam, vc6 and stlport 5.0. But when I linke to the libfilesystem.lib, the error said that that the libsystem.lib doesn't consist of interfaces that have parameters of _STL::string type. I guess I must have not correctly configure the bjam to build filesystem. But how can I make it to recognize _STL namespace?