diff --git a/man2/intro.2 b/man2/intro.2
index 5c0762088..712e90453 100644
--- a/man2/intro.2
+++ b/man2/intro.2
@@ -164,136 +164,9 @@ On these architectures,
 must be used.
 .SH "CONFORMING TO"
 Certain codes are used to indicate Unix variants and standards to
-which calls in the section conform.  These are:
-.TP
-SVr4
-System V Release 4 Unix, as described in the "Programmer's Reference
-Manual: Operating System API (Intel processors)" (Prentice-Hall
-1992, ISBN 0-13-951294-2)
-.TP
-SVID
-System V Interface Definition, as described in "The System V Interface
-Definition, Fourth Edition".
-Available online at http://www.sco.com/developers/devspecs/ .
-.TP 
-C89 
-This was the first C language standard, ratified by ANSI 
-(American National Standards Institute) in 1989 
-.RI ( X3.159-1989 ).
-Sometimes this is known as 
-.IR "ANSI C" , 
-but since C99 is also an
-ANSI standard, this term is ambiguous.
-This standard was also ratified by 
-ISO (International Standards Organization) in 1990 
-.RI ( "ISO/IEC 9899:1990" ),
-and is thus occasionally referred to as 
-.IR "ISO C90" .
-.TP
-C99
-This revision of the C language standard was ratified by ISO in 1999 
-.RI ( "ISO/IEC 9899:1999" ).
-.TP
-POSIX.1-1990
-"Portable Operating System Interface for Computing Environments".
-IEEE 1003.1-1990 part 1, ratified by ISO in 1990
-.RI ( "ISO/IEC 9945-1:1990" ).
-Further information can be found 
-in Donald Lewine's "POSIX Programmer's Guide" (O'Reilly & Associates,
-Inc., 1991, ISBN 0-937175-73-0).
-The term "POSIX" was coined by Richard Stallman.
-.TP 
-POSIX.2
-IEEE Std 1003.2-1992, 
-describing commands and utilities, ratified by ISO in 1993
-.RI ( "ISO/IEC 9945-2:1993" ).
-.TP
-POSIX.1b
-IEEE Std 1003.1b-1993, describing real-time facilities
-for portable operating systems, ratified by ISO in 1996
-.RI ( "ISO/IEC 9945-1:1996" ).
-For further information, see
-"POSIX.4: Programming for the real world"
-by Bill O. Gallmeister (O'Reilly & Associates, Inc. ISBN 1-56592-074-0).
-.TP
-POSIX.1c
-IEEE Std 1003.1c-1995 describing the POSIX threads interfaces.
-.TP
-POSIX.1-1996
-A 1996 revision of POSIX.1 which incorporated POSIX.1b and POSIX.1c.
-.TP
-XPG3
-Released in 1989, this was the first significant release of the
-.IR "X/Open Portability Guide" ,
-produced by the
-X/Open Company, a multi-vendor consortium.
-This multi-volume guide was based on the POSIX standards.
-.TP
-XPG4
-A revision of the X/Open Portability Guide, released in 1992.
-.TP
-XPG4v2
-A 1994 revision of XPG4.
-This is also referred to as
-.IR "Spec 1170" ,
-where 1170 referred to the number of interfaces 
-defined by this standard.
-.TP
-SUS
-Single Unix Specification.
-This was a repackaging of XPGv2 and other X/Open standards
-(X/Open Curses Issue 4 version 2, 
-X/Open Networking Service (XNS) Issue 4).
-Systems conforming to this standard can be branded
-.IR "UNIX 95" .
-.TP
-SUSv2
-Single Unix Specification version 2.
-Sometimes also referred to as
-.IR XPG5 .
-This standard appeared in 1997.
-Systems conformin to this standard can be branded
-.IR "UNIX 98" .
-See also
-http://www.UNIX-systems.org/version2/ .)
-.TP
-POSIX.1-2001, SUSv3
-This was a 2001 revision and consolidation of the 
-POSIX.1, POSIX.2, and SUS standards into a single document, 
-conducted under the auspices of the Austin group
-(http://www.opengroup.org/austin/ .)  
-The standard is available online at 
-http://www.unix-systems.org/version3/ , 
-and the interfaces that it describes are also available in the Linux 
-manual pages package under sections 1p and 3p (e.g., "man 3p open").
-.sp
-The standard defines two levels of conformance: 
-.IR "POSIX conformance" ,
-which is a baseline set of interfaces required of a conforming system; 
-and
-.IR "XSI Conformance", 
-which additionally mandates a set of interfaces
-(the "XSI extension") which are only optional for POSIX conformance.  
-XSI-conformant systems can be branded
-.IR "UNIX 03" .
-.sp
-POSIX.1-2001 is aligned with C99, so that all of the
-library functions standardised in C99 are also
-standardised in POSIX.1-1001.
-.sp
-Two Technical Corrigenda (minor fixes and improvements) 
-of the original 2001 standard have occurred:
-TC1 in 2003 (referred to as 
-.IR POSIX.1-2003 ), 
-and TC2 in 2004 (referred to as 
-.IR POSIX.1-2004 ).
-.TP
-4.3BSD/4.4BSD
-The 4.3 and 4.4 distributions of Berkeley Unix.  4.4BSD was
-upward-compatible from 4.3BSD.
-.TP
-V7
-Version 7, the ancestral Unix from Bell Labs.
+which calls in the section conform. 
+See
+.BR standards (7).
 .SH FILES
 .I /usr/include/linux/unistd.h
 .SH "SEE ALSO"