Add siginfo.

Add a manpage for pthread_atfork(3). This copies a lot of the text of
the Open Group manpage for pthread_atfork(), available online at:

http://www.opengroup.org/onlinepubs/009695399/functions/pthre

Add a manpage for pthread_atfork(3). This copies a lot of the text of
the Open Group manpage for pthread_atfork(), available online at:

http://www.opengroup.org/onlinepubs/009695399/functions/pthread_atfork.html

which should be ok, since Daniel Eischen had mailed me about Open
Group manpages and the fact that they have granted permission to
FreeBSD to use their material. Any differences from the OG text are
my changes to the original manpage text submitted by Alex Vasylenko:

- In an effort to clean up the part that describes hooks and their
calling order, I used a list instead of a single paragraph for all the three
types of fork() hooks.
- After a short discussion with Dima Dorfman a long long time ago in a
far away galaxy, I changed the RETURN VALUES section to look more
like the rest of the pthread_xxx.3 manpages.

PR: docs/68201
Submitted by: Alex Vasylenko <lxv@omut.org>

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Remove fpsetsticky(). This was added for SysV compatibility, but due
to mistakes from day 1, it has always had semantics inconsistent with
SVR4 and its successors. In particular, given argument M:

Remove fpsetsticky(). This was added for SysV compatibility, but due
to mistakes from day 1, it has always had semantics inconsistent with
SVR4 and its successors. In particular, given argument M:

- On Solaris and FreeBSD/{alpha,sparc64}, it clobbers the old flags
and *sets* the new flag word to M. (NetBSD, too?)
- On FreeBSD/{amd64,i386}, it *clears* the flags that are specified in M
and leaves the remaining flags unchanged (modulo a small bug on amd64.)
- On FreeBSD/ia64, it is not implemented.

There is no way to fix fpsetsticky() to DTRT for both old FreeBSD apps
and apps ported from other operating systems, so the best approach
seems to be to kill the function and fix any apps that break. I
couldn't find any ports that use it, and any such ports would already
be broken on FreeBSD/ia64 and Linux anyway.

By the way, the routine has always been undocumented in FreeBSD,
except for an MLINK to a manpage that doesn't describe it. This
manpage has stated since 5.3-RELEASE that the functions it describes
are deprecated, so that must mean that functions that it is *supposed*
to describe but doesn't are even *more* deprecated. ;-)

Note that fpresetsticky() has been retained on FreeBSD/i386. As far
as I can tell, no other operating systems or ports of FreeBSD
implement it, so there's nothing for it to be inconsistent with.

PR: 75862
Suggested by: bde

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NOLIBC_R -> NO_LIBC_R
NOLIBPTHREAD -> NO_LIBPTHREAD
NOLIBTHR -> NO_LIBTHR

Sort MAN and MLINKS in dictionary order ignoring case.

Add a man page for tgmath.h.

Reviewed by: keramida

Add missing links.

Implement PThreads barriers and barrier attributes.

o Implement the pthread_spin_* functions in libthr.
o Man pages

Use a single style for share/man/ makefiles:

- Sort MAN and MLINKS in "dictionary" order ignoring case.

- For multi-value MAN and multi-pair MLINKS, put each value/pair
on its own line, for easie

Use a single style for share/man/ makefiles:

- Sort MAN and MLINKS in "dictionary" order ignoring case.

- For multi-value MAN and multi-pair MLINKS, put each value/pair
on its own line, for easier sorting and so that further diffs
are easier to see.

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Add an implementation of pthread_rwlock_timed{rd,wr}lock() to libthr with
attendant documentation.

Have a single set of POSIX threads man pages. The LIBRARY section
of each manpage lists libraries that have corresponding interfaces
implemented.

Prodded by: threads
Reviewed by: deischen

o Implement pthread_mutex_timedlock(), which does not block indefinitely on
a mutex locked by another thread.
o document it: pthread_mutex_timedlock(3)

Implement C99's va_copy() macro.

Install the tree(3) man page.

Document STAILQ_CONCAT and TAILQ_CONCAT.

PR: 20024
Submitted by: Tony Finch <dot@dotat.at> (TAILQ_CONCAT, slightly changed
by me)
Reviewed by: ru (earlier version)

fix MLINKS for timeradd.3

Add manpage for timeradd macros and friends. A companion page for
timespecadd should be added at a future point...

PR: 13079

MAN[1-9] -> MAN.

Remove CIRCLEQ manual page links now that CIRCLEQ has been axed.

Add MLINKS for queue(3) FOREACH_REVERSE and HEAD_INITIALIZER macros.

Forgotten by: jake, archie

Add MLINKS for all macros decribed in queue.3 manpage.

$Id$ -> $FreeBSD$

fix the links to the bitstring man page..

fix wording in man page, through != to

Document the fpgetprec/fpsetprec functions in their man page.
Add cross-references to the elusive fpsetmask() function to various other
man pages.
Reviewed by: bde