For AOO interacting with system provided C*+ libraries the template libraries they depend on must be binary compatible. This is best achieved by AOO employing the same STLs that the system uses:
- on Windows this is MSVC's TR1 implementation
- on MacOSX this is libc++ as provided by XCode4
- on GCC based systems this is glibcxx (eventually wrapped by boost TR1)

Another benefit is that some modern compilers fail to build stlport4. It has become obsolete with the C++11 standardization that was preceded by the TR1 recommendation. Stlport5 would be an interesting alternative as it follows that standard and has interesting features. Going native is the better solution at least for now.