Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Mark bsdar_errc as __dead2 to help code analysis tools.

PR: bin/172636
Submitted by: Erik Cederstrand <erik@cederstrand.dk>
Approved by: cperciva
MFC after: 3 days

Add -D (deterministic) option to ar.
When set, it forces all timestamps and owners to zero and
modes to 0644. Useful for producing libraries that are
bitwise identical across multiple build runs.

Submitted by: Erik Cederstrand
Reviewed by: Kai Wang

Removed ar(1)'s support for compressed archives. This change removes
ar(1)'s dependencies on compressor libraries -lz, -lbz2 and -llzma and
fixes building HEAD on some versions of FreeBSD[78]. Option -j and -z
is now accepted but ignored.

Compressed ar(1) archives are not useful without a ld(1) that can read
them. Also, the current ar(1) compression scheme prevents random
access of archive members and needs to be redesigned anyway.

Submitted by: kientzle (original patch)
Reviewed by: delphij
Discussed on: -current mailing list

Add support for option "-M", which is used to operate ar(1) in a
script mode like the MRI(Microtec Research Inc.) "librarian" program.

Originally this option is provided by Binutils ar(1) to ease the
transition for developers who are used to writing "librarian" scripts.

We added this option to BSD ar(1) because:

1. Further improve the compatibility with Binutils ar(1).
2. There are still a few software using this -M option. (at least one
in our ports collection)

Suggested by: rink & erwin

GNU ar did NOT implment option -q as a synonym of -r as the manual
page stated, thus BSD ar(1) option -q, which was implemented based on
the GNU ar manual page, turns out to be incompatible with GNU ar -q.

This change will make BSD ar(1) -q a *REAL* GNU ar -q:

1. It will update symbol table. (same as unfixed version)
2. It will NOT compare new members spcified in the command line args
with existing members, instead, append them directly.

Reported by: Johannes 5 Joemann <joemann@beefree.free.de>
Reported by: Timothy Bourke <timbob@bigpond.com>
Tested by: Johannes 5 Joemann <joemann@beefree.free.de>
Reviewed by: jkoshy
Approved by: jkoshy (mentor)

Re-introduce the new BSDLed 'ar' to the build.
It is installed as "bsdar" unless WANT_BSDAR is defined.

Discussed with: kaiw

Import ar(1) front-end. (aka 'BSD' ar)

Reviewed by: jkoshy
Approved by: jkoshy (mentor)
Tested by: erwin (ports build test on pointyhat)
Sponsored by: Google Summer of Code 2007
Reviewed by (earlier version): Jaakko Heinonen <jh[AT]saunalahti.fi>
Tested by (earlier version): Steve Kargl <sgk[AT]troutmask.apl.washington.edu>
Tested by (earlier version): Martin Voros <martin_voros[AT]yahoo.com>
Tested by (earlier version): swell.k[AT]gmail.com
Tested by (earlier version): joel
Tested by (earlier version): Alexey Shuvaev <shuvaev[AT]physik.uni-wuerzburg.de>
Tested by (earlier version): Arjan van Leeuwen <avleeuwen[AT]gmail.com>

Thanks to gabor@ for building ports for it.
Thanks to erwin@ and kris@ for scheduling the ports build test on pointyhat.
And thanks to many others for their feedback.