This is an omission by purpose.

Citing from comment 1 in bug 439403:
> That's on purpose.  Linux doesn't support STREAMS (many years ago it was
> available as a third party module, but it hasn't worked for years).
> stropts.h is part of a POSIX XSR option, which Linux now, matching reality, 
> says it is not supported.
>
> No idea why graphviz needs it (when all the syscalls are stubbed), but it needs
> fixing (either by adding configure checks, or by using the POSIX recommended
> check - #include <unistd.h>, 
> #if defined _XOPEN_STREAMS && _XOPEN_STREAMS == -1
> /* XSR option is not available, headers, data types etc. may not be 
> available.  */
> #endif
> see http://www.opengroup.org/onlinepubs/009695399/basedefs/unistd.h.html
> for more details).

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Changing component to man-pages:

I sugguest The following man-pages should be updated:

fattach(3P), fdetach(3P), getmsg(3P), getpmsg(3P), ioctl(3P), isastream(3P), putmsg(3), putpmsg(3P), stropts.h(0P) 

to link to an UNIMPLEMENTED man page similar to getmsg(2P) i.e. man -s2 getmsg.

The manual pages mentioned in comment 7 are in posix part which is the description of posix norm. All of them include a head which tells this is norm description and the the functions could not be implemented on the each version of linux.
All of them except of fattach have a version in section 2 which link to unimplemented.2 manual page.
Thus the only think which can be done from man-pages side is to add fattach.2 as a link to unimplemented.2.

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Prior to this update, a manual page for the fattach function was missing. This update adds the fattach(2) manual page.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1571.html

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days