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+Preface
+#######
+
+This is the User’s Guide for the POSIX API support
+provided in RTEMS.
+
+The functionality described in this document is based
+on the following standards:
+
+- POSIX 1003.1b-1993.
+
+- POSIX 1003.1h/D3.
+
+- Open Group Single UNIX Specification.
+
+Much of the POSIX API standard is actually implemented in the
+Cygnus Newlib ANSI C Library.  Please refer to documentation on
+Newlib for more information on the functionality it supplies.
+
+This manual is still under construction and improvements
+are welcomed from users.
+
+Acknowledgements
+================
+
+.. COMMENT: COPYRIGHT (c) 1988-2009.
+
+.. COMMENT: On-Line Applications Research Corporation (OAR).
+
+.. COMMENT: All rights reserved.
+
+.. COMMENT: The RTEMS Project has been granted permission from The Open Group
+
+.. COMMENT: IEEE to excerpt and use portions of the POSIX standards documents
+
+.. COMMENT: in the RTEMS POSIX API User's Guide and RTEMS Shell User's Guide.
+
+.. COMMENT: We have to include a specific acknowledgement paragraph in these
+
+.. COMMENT: documents (e.g. preface or copyright page) and another slightly
+
+.. COMMENT: different paragraph for each manual page that excerpts and uses
+
+.. COMMENT: text from the standards.
+
+.. COMMENT: This file should help ensure that the paragraphs are consistent
+
+.. COMMENT: and not duplicated
+
+    The Institute of Electrical and Electronics Engineers, Inc and The
+    Open Group, have given us permission to reprint portions of their
+    documentation.
+    Portions of this text are reprinted and reproduced in electronic
+    form from IEEE Std 1003.1, 2004 Edition, Standard for Information
+    Technology â Operating System Interface (POSIX), The Open
+    Group Base Specifications Issue 6, Copyright Â© 2001-2004 by the
+    Institute of Electrical and Electronics Engineers, Inc and The
+    Open Group. In the event of any discrepancy between this version
+    and the original IEEE and The Open Group Standard, the original
+    IEEE and The Open Group Standard is the referee document. The
+    original Standard can be obtained online athttp://www.opengroup.org/unix/online.html.
+    This notice shall appear on any product containing this material.
+
+.. COMMENT: COPYRIGHT (c) 1988-2002.
+
+.. COMMENT: On-Line Applications Research Corporation (OAR).
+
+.. COMMENT: All rights reserved.
+