MFC after:	1 week
Sponsored by:	Klara, Inc.
Reviewed by:	fuz
Differential Revision:	https://reviews.freebsd.org/D53908

Add a new per-group SUBPACKAGE option to bsd.man.mk.  When MANSPLITPKG
is enabled, this is forced to "-man", otherwise it defaults to empty
but can be overridden by the caller.

Use this in bsd.lib.mk to install library manpages in the -dev package
instead of the base package.  This is nearly always preferable, since
library manpages are usually in section 2 or 3 and are only relevant
to people with development packages installed.

For manpages which should be installed in the base package even for
libraries, add a new MANNODEV group in bsd.lib.mk.  Update existing
Makefiles to use this where appropriate.

MFC after:	3 days
Discussed with:	olce
Reviewed by:	olce
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D52832

wchar_t is unsigned on ARM platforms, and signed pretty much everywhere
else.  On signed platforms, `nm` ends up with bogus upper bits set if we
did in-fact have a valid CS2 or CS3 (MSB set).  Mask just the low byte
to avoid sign bit garbage.

Bare basic test of converting a CS2 widechar in eucCN, which would
previously kick back an EILSEQ.

Reviewed by:	bapt, rew
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D43262

This change adds support for matching single and multi-character
equivalence classes and collating symbols, as specified
by POSIX1, section 9.3.5.

Sponsored by:	Klara, Inc.
Obtained from:	https://github.com/apple-oss-distributions/Libc
Differential Revision:	https://reviews.freebsd.org/D49659
Reviewed by:	markj

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

xlocale.3: Comment out reference to atof_l(3), atoi_l(3), atol_l(3), atoll_l(3)
  These manual page references do not exist.

lagg.4: Change the reference for /etc/rc.conf from a reference link
  .Xr -> .Pa based on the context within the manual page it is used.

buf.9: Remove .Xr entries from the file
  The buf.9 manual page contains a commented out .Xr reference.
  The <filmmein> 9 entry is a placeholder and has been removed for
  clarity.

Reviewed by:	mhorne
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1114

From "approprate" to "appropriate".

Signed-off-by: rilysh <nightquick@proton.me>
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1119

The private symbol __collate_load_error was removed in 2015 in commit
2a6abeebef96.  While it had previously been accidently removed in 2011
(commit 3c87aa1d3dc1a) and restored in 2012 (commit bb4317bf3c99) I
think it's time to write it off after four major releases without it.

Fixes:		2a6abeebef96 The collate functions within libc have...

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D44182

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by:		Netflix

These wide char support files were copied from the previous versions
with expanded $FreeBSD$ strings in #if 0 blocks.  Remove them and the
scssid definitions in the same #if 0 blocks.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D42688