RSC is meant to improve the C++ std lib for robotic systems without pulling in many additional dependencies. Boost is ok, everything else probably not. The aim is to create a lightweight library that is also usable on embedded systems. Part of this philosophy is to create wrapper interfaces to common library functions like logging and make a flexible solution for backends. E.g. on embedded systems log4cxx is hardly usable but it may still be desired to use it on normal desktop computers. Hence, a flexible backend selection mechanism is available for such features with a minimalistic implementation as a fallback backend.