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-rw-r--r--doc/new_chapters/preface.texi23
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diff --git a/doc/new_chapters/preface.texi b/doc/new_chapters/preface.texi
index 7c0468da88..83e85dfafa 100644
--- a/doc/new_chapters/preface.texi
+++ b/doc/new_chapters/preface.texi
@@ -11,11 +11,24 @@
@end ifinfo
@unnumbered Preface
-This is the user's guide for the POSIX API support for RTEMS.
+This is the User's Guide for the POSIX API support
+provided in RTEMS.
-At this point, this is just a basic shell of what this manual
-should ultimately be.
+The functionality described in this document is based
+on the following standards:
+
+@itemize @bullet
+
+@item POSIX 1003.1b-1993.
+
+@item POSIX 1003.1h/D3.
+
+@end itemize
Much of the POSIX API standard is actually implemented in the
-newlib ANSI C Library. Please refer to documentation on
-newlib for more information on what it supplies.
+Cygnus Newlib ANSI C Library. Please refer to documentation on
+Newlib for more information on what it supplies.
+
+At this point, this is just beginning to become what it
+ultimately should be.
+