We are not conformant in terms of supporting required POSIX functionalities in POSIX profile 51, 52, 53, and 54. For some of the POSIX features (such as, run-time libraries, math libraries, and so on) we are dependent on the underlying OS, but we plan to provide all of this directly from MapuSoft in the future. For example, OS Abstractor APIs for VxWorks is pretty close to profile 53. OS Abstractor APIs for LynxOS would be close to profile 54. However, the listed APIs in the POSIX Interface API list comes from MapuSoft libraries.