This work will extend the POSIX interfaces to provide 'C' language bindings for additional realtime functions for Typed Memory, Absolute Nanosleep, Barrier Synchronization, Reader/Writer Lock, Monotonic Clock, and Synchronized Clock. This standard will not change the base standard which it amends. To amend P1003.1 with 'C' binding interfaces to support source portability of applications with realtime and specialized hardware control requirements. Amendment Standard - Superseded. This standard is part of the POSIX series of standards for applications and user interfaces to open systems. It defines the applications interface to system services for synchronization, memory management, time management, and thread management. This standard is stated interms of its C language binding.