Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

pkgbase: Put the mibs and defs in the bnsmp package

Differential Revision: https://reviews.freebsd.org/D30756
Sponsored by: Diablotin Systems

Rework some multi-output target dependency handling.

This reworks my last commit in r301285 to more closely match what was in
r241298 (but reverted in r294878).

This is addressing "missing .meta file" rebuilds but also ensuring that
files are always generated when needed in each case.

Note that this is not a complete rework of the problem areas identified
in r301285 as most are "good enough" right now as the new pattern
is too verbose. It's only worth making this current change where headers
may be generated in the INCS list; where missing .meta file rebuilds are
spotted.

--- Technical details follow ---

Several attempts to deal with this problem of multi-output targets, with and
without META MODE, were explained in r241298, r294878, and r301285.

The general problem is with multi-output targets such as:
foo.c foo.h:
touch foo.c foo.h
foo.c foo.h:
touch foo.c
touch foo.h
foo.c foo.h: foo.in
./generator ${.ALLSRC}

This pattern is problematic in jobs mode as both files end up being
built concurrently and leads to races. With META MODE it is worse
as both targets end up rebuilding if they lack a .meta file. So the
generator is force built twice even though it is only needed once.
There are also problems in that 'make foo.h' may be ran before 'make foo.c';
The order of make generating the targets is not guaranteed.

An older attempted workaround to this (discussed in r294878) was:
foo.h: foo.c
foo.c: foo.in
./generator ${.ALLSRC}
This appears fine except that if foo.h is missing and foo.c exists then
foo.h will never be regenerated. This pattern is close to the solution
in this commit though:

foo.h: foo.c .NOMETA
.if !exists(foo.h)
foo.c: .PHONY .META
.endif
foo.c: foo.in
./generator ${.ALLSRC}

There's 2 differences here:
1. foo.h will never expect to have a .meta file since the foo.c target
will generate both and own the .meta file.
2. If foo.h does not exist then it needs to force foo.c to be rebuilt
with .PHONY. That normally disables META MODE though so .META is
given to tell bmake we do really expect a .meta file.

This pattern cannot work with implicit suffix rules since the .c and .h files
may be generated at different times (buildincludes vs depend/all).

Sponsored by: Dell EMC
MFC after: 2 weeks

Update bsnmp to version 1.13. This does not bring user-visible changes.
For developers gensnmptree can now generate functions for enums to convert
between enums and strings and to check the validity of a value.
The sources in FreeBSD are now in sync with the upstream which allows to
bring in IPv6 modifications.

Add a make target (smilint) for running smilint tool against BMIBS

Running smilint against MIB definitions is useful in finding
functional problems with MIB definitions/descriptions.

This is inspired by the smilint targets defined in
usr.sbin/bsnmpd/modules/{snmp_hostres,snmp_mibII}/Makefile

Document all of the variables that are involved in running the
smilint target, as well as all of the prerequisites to running
it.

MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D9099

WITH_META_MODE: Don't expect meta files for side-effect generated files.

The first file in these lists will generate everything else so only
it should be getting a .meta file. With bmake's missing=yes meta
feature these would otherwise cause a rebuild without the
.NOMETA hint.

Sponsored by: EMC / Isilon Storage Division

Allow overriding FILESDIRs for snmp files.

Sponsored by: EMC / Isilon Storage Division

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Add an additional make variable EXTRAMIBSYMS which allows to specify
definition files that are used only for extracting symbols. This is useful
for inter-module dependencies and files containing only enum-definitions.

MFC after: 4 weeks

Don't include bsd.init.mk so early - it's just not needed here.
Use . instead of ${.OBJDIR}.
Move DEFSDIR and BMIBSDIR under the resp. .if clauses so that they
get defined only if DEFS and BMIBS are defined.

Submitted by: ru

Add a .mk file for building modules for the SNMP daemon. This may be
use in-tree as well as for 3rd party modules. This file is more or less
what was in usr.sbin/bsnmpd/modules/Makefile.inc with some modifications
and omissions. Usage examples can be found under usr.sbin/bsnmpd/modules/*.

Idea by: phk