MFC: Merge sendmail 8.16.1 from HEAD: See contrib/sendmail/RELEASE_NOTES for
details
Includes build infrastructure & config updates required for changes
in 8.16.1

MFC r312452-r312512:

r312452-r312512:

- Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output

- Use .CURDIR:H instead of .CURDIR to simplify pathing in output, etc

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

Merge the projects/release-pkg branch to head.

This allows packaging the base system with pkg(8), including
but not limited to providing the ability to provide upstream
binary update possibilities for non-tier-1 architectures.

This merge is a requirement of the 11.0-RELEASE, and as such,
thank you to everyone that has tested the project branch.

Documentation in build(7) etc. is still somewhat sparse, but
updates to those parts will follow.

Sponsored by: The FreeBSD Foundation

DIRDEPS_BUILD: Regenerate without local dependencies.

These are no longer needed after the recent 'beforebuild: depend' changes
and hooking DIRDEPS_BUILD into a subset of FAST_DEPEND which supports
skipping 'make depend'.

Sponsored by: EMC / Isilon Storage Division

META MODE: Don't create .meta files when symlinking sources into the obj directory.

Tracking these leads to situations where meta mode will consider the
file to be out of date if /bin/sh or /bin/ln are newer than the source
file. There's no reason for meta mode to do this as make is already
handling the rebuild dependency fine.

Sponsored by: EMC / Isilon Storage Division

Remove unneeded libutil dependency for sendmail.

It included libutil.h for setproctitle(3), which was moved from libutil to libc
in r65353 in 2000.

Reviewed by: gshapiro [sendmail change]
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D4261

Update META_MODE dependencies.

libsm/path.c is about to disappear in the merge of sendmail 8.15.2. It is an
empty file now so it is safe to remove before the merge.

MFC after: 3 days

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

Use src.opts.mk in preference to bsd.own.mk except where we need stuff
from the latter.

Add new sendmail 8.14.8 file

MFC after: 5 days

Since clang 3.2 now has an option to suppress warnings about implicitly
promoted K&R parameters, remove the workarounds added for sendmail
components in r228558.

MFC after: 1 week

Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to
get rid of testing explicitly for clang (using ${CC:T:Mclang}) in
individual Makefiles.

Instead, use the following extra macros, for use with clang:
- NO_WERROR.clang (disables -Werror)
- NO_WCAST_ALIGN.clang (disables -Wcast-align)
- NO_WFORMAT.clang (disables -Wformat and friends)
- CLANG_NO_IAS (disables integrated assembler)
- CLANG_OPT_SMALL (adds flags for extra small size optimizations)

As a side effect, this enables setting CC/CXX/CPP in src.conf instead of
make.conf! For clang, use the following:

CC=clang
CXX=clang++
CPP=clang-cpp

MFC after: 2 weeks

Fix typos in the comments about clang warnings in several
sendmail-related Makefiles.

Spotted by: arundel
MFC after: 1 week

Unfortunately, clang gives a warning about sendmail code that cannot be
turned off yet. Since this is contrib code, and we don't really care
about the warnings, just turn make them non-fatal for now.

MFC after: 1 week

Enable the use of nanosleep() instead of using pause() and signals.
This Makefile change can be removed when the next version of sendmail
is imported as it will have this built in to the FreeBSD conf.h section.

Submitted by: John Marshall
MFC after: 3 days

Build lib/ with WARNS=6 by default.

Similar to libexec/, do the same with lib/. Make WARNS=6 the norm and
lower it when needed.

I'm setting WARNS?=0 for secure/. It seems secure/ includes the
Makefile.inc provided by lib/. I'm not going to touch that directory.
Most of the code there is contributed anyway.

New files in sendmail 8.14.1

Add new libsm file from sendmail 8.13.6

MFC after: 4 days

Reimplementation of world/kernel build options. For details, see:

http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html

The src.conf(5) manpage is to follow in a few days.

Brought to you by: imp, jhb, kris, phk, ru (all bugs are mine)

Add a new source file in sendmail 8.13.4

Remove file no longer in 8.13.3

NOINET6 -> NO_INET6

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

Reflect changes in sendmail 8.13 source tree

Honor NOINET6 and disable IPv6 support in libmilter and sendmail if it
is set.

MFC after: 4 days

Remove MAINTAINER= lines from individual Makefiles in favor of the
MAINTAINER file (which already had entries for sendmail).

Removed now unused INTERNALSTATICLIB.
INTERNALLIB now implies NOPIC and NOPROFILE.
Removed gratuitous NOMAN.

Add two new libraries which are part of sendmail 8.12. libsm is used only
for building sendmail and the associated utilities. libmilter is a new
mail filtering API for sendmail.