MFC r314659,r314676:

r314659:

usr.sbin: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

r314676:

Fix build after r314656

Some of the changes I introduced to use .ALLSRC were correct in spirit,
but incorrect in reality -- in particular, ../Makefile.inc hadn't been
pulled in via bsd.init.mk (via bsd.lib.mk, bsd.prog.mk), so the value
of .ALLSRC (evaluated immediately) was empty. .include bsd.init.mk
explicitly so we can be certain that the values used as dependencies in
the targets are defined when the target recipe has been evaluated.

Reminder: thou shalt separate out separate functional changes before
committing them.

(YUGE) Pointyhat to: ngie
In collaboration with: bdrewery

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Add META_MODE support.

Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision: D2796
Reviewed by: brooks imp

NO_MAN= has been deprecated in favor of MAN= for some time, go ahead
and finish the job. ncurses is now the only Makefile in the tree that
uses it since it wasn't a simple mechanical change, and will be
addressed in a future commit.

Shrink encoded line length from 76 to 72 characters.

Some Exchange systems wrap lines over 75 characters long while converting
messages to quoted-printable, preventing ctm_rmail from reassembling
emailed deltas. For a negligible loss of encoding efficiency, this change
allows ctm deltas to once more pass through Exchange undamaged.

The last big commit: let usr.sbin/ use WARNS=6 by default.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

From the PR:

I am the maintainer of CTM. There is a problem that when very large deltas
are created, that the program ctm_smail, which is responsible for mailing
the deltas out, will instead create a single message that says the delta
is too large. However, if the -q option is set, instead of placing this
message in the queue (as it would have done with the deltas), it mails it
out directly. This conflicts with the current working of CTM in that the
email address is set as %%REPLACE-ME%% so that the created mailing pieces
can be signed by gnu-pgp, and then have the mailing address changed.

This fix means that if the -q option is set, and the delta is too large,
the "too large" message is placed in the queue.

Also, I made the "too large" message a little more up to date.

Submitted by: Stephen Montgomery-Smith <stephen@math.missouri.edu>
PR: bin/50328
MFC After: 2 weeks

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

Remove GCC'isms in CFLAGS.

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Removed unnecessary locking. Simplified. Tidied.

make it slightly less verbose while creating queue entries..

- resync with configs running on freefall
- add ctm_conf.gnats from freefall
- add support for doing both the immediate mailout and the queued mailout.
- use "sendmail -odq -t" rather than "sendamil -t" to make it queue to
the mailqueue rather than immediately begin transmission. This allows
us to take advantage of our ordered dequeueing system without blowing
WC's T1 to hell with a 50 part mailout in parallel.
- bump the max ctm size from 3MB to 10MB.... This is mainly for the fast
list.

Add a facility for a ``slow'' CTM delta queue, allowing `x' number
of delta's to be mailed out every hour (or however often you schedule
the cron job).

ctm_dequeue is the cron job which takes the stuff from the
queue directory and punts it into sendmail. The chunks of
the deltas (and the complete deltas if they are that small)
are sorted into order before being dispatched, so the people
subscribing should still get the bits in the right order.

The changes to ctm_smail should be fairly safe as they won't be
activated unless you go for the new queue directory option.

Updated howmany() to be once again identical with the namespace-polluting
one in <sys/types.h>. Lite2 changed the white space in the latter.

Remove -g from CFLAGS.

Remove trailing whitespace.

Various nitpicking from Stephen.

Reviewed by: phk
Submitted by: Stephen McKay <syssgm@devetir.qld.gov.au>

Clean up some details, to make it clear to gcc that we do not try to do
something stupid.

CTM email tools.

Reviewed by: phk
Submitted by: Stephen McKay <syssgm@devetir.qld.gov.au>