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Revised description of standards under CONFORMING TO.
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man2/intro.2
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man2/intro.2
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@ -175,7 +175,7 @@ SVID
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System V Interface Definition, as described in "The System V Interface
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Definition, Fourth Edition".
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.TP
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POSIX.1
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POSIX.1-1990
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IEEE 1003.1-1990 part 1, aka ISO/IEC 9945-1:1990s, aka "IEEE Portable
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Operating System Interface for Computing Environments", as elucidated
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in Donald Lewine's "POSIX Programmer's Guide" (O'Reilly & Associates,
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@ -187,11 +187,38 @@ for portable operating systems, aka ISO/IEC 9945-1:1996, as elucidated in
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"Programming for the real world \- POSIX.4"
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by Bill O. Gallmeister (O'Reilly & Associates, Inc. ISBN 1-56592-074-0).
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.TP
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POSIX.1c
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IEEE Std 1003.1c-1995 describing the POSIX threads interfaces.
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.TP
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POSIX.1-1996
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A 1996 revision of POSIX.1 which incorporated POSIX.1b and POSIX.1c.
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.TP
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SUS, SUSv2
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Single Unix Specification.
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(Developed by X/Open and The Open Group. See also
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http://www.UNIX-systems.org/version2/ .)
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.TP
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POSIX.1-2001, SUSv3
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The 2001 revision and consolidation of the POSIX.1 and SUS standards
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into a single document, conducted under the auspices of the Austin group
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(http://www.opengroup.org/austin/ .)
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The standard is available online at
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http://www.unix-systems.org/version3/ ,
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and the interfaces that it describes are also available in the Linux
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manual pages package under sections 1p and 3p (e.g., "man 3p open").
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The standard defines two levels of conformance:
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.IR "POSIX conformance" ,
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which is a baseline set of interfaces required of a conforming system;
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and
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.IR "XSI Conformance",
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which additionally mandates a set of interfaces
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(the "XSI extension") which are only optional for POSIX conformance.
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XSI-conformant systems can be branded
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.IR "UNIX 03" .
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Two Technical Corrigenda (minor fixes and improvements)
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of the original 2001 standard have occurred:
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TC1 in 2003, and TC2 in 2004.
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.TP
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4.3BSD/4.4BSD
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The 4.3 and 4.4 distributions of Berkeley Unix. 4.4BSD was
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upward-compatible from 4.3.
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