MFC r314655:

bin: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

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

Use more appropriate ${SHAREDIR} rather than /usr/share.

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

Convert sbin/ to LIBADD
Reduce overlinking

Fix atmconfig compilation when MK_ATM == yes and MK_BSNMP == no

Makefile.inc1:
Always compile gensnmptree with bootstrap-tools when MK_BSNMP != no
instead of depending on a potentially stale tool installed on the build host

sbin/atm/atmconfig/Makefile:
- Always remove oid.h to avoid cluttering up the build/src tree.
- Consolidate all of the RESCUE/MK_BSNMP != no logic under one
conditional to improve readability
- Remove unnecessary ${.OBJDIR} prefixing for oid.h and use ${.TARGET} instead
of spelling out oid.h
- Add a missing DPADD for ${LIBCRYPTO} when compiled MK_BSNMP == yes and
MK_OPENSSL == yes and not compiling for /rescue/rescue

sbin/atm/atmconfig/main.c:
Change #ifndef RESCUE to #ifdef WITH_BSNMP in main.c to make it
clear that we're compiling bsnmp support into atmconfig

Approved by: jmmv (mentor)
Phabric: D579
PR: 143830
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division

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

Unbreak NO_DYNAMICROOT by explicitely linking to libcrypto if MK_OPENSSL isn't
set to no, as libbsnmp needs it.

MFtbemd:

Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want
to test of all the CPUs of a given family conform.

Switch the default WARNS level for sbin/ to 6.

Submitted by: Ulrich Spörlein

Forgot to change the pointer to the snmp_atm sources after repo-copy.
Correct this by pointing to the new location.

Pointy hat to: harti

Submitted by: keramida

Back the warnings down from 9 to 6, since that is the highest we have. If
we added a WARNS 7 level, it shouldn't be assumed this code will pass it.

Add support for the examination and modification of the devices.
This is implemented through SNMP and requires the ilmi daemon to
run on the system. To prevent bloat in rescue the atmconfig for
rescue is compiled without this stuff.

Allow the help file path and name to be overwritten by cc -D...
Also remove the current directory from the default help file path
and add an appropriate directory in /usr/local instead.

Use WARNS?=3 for these in the arm case for now, due to toolchain issues.

style.Makefile(5):
Use WARNS?= instead of WARNS=.

style.Makefile(5)

Add a program for configuration of the ATM drivers and the IP over ATM
stuff. This utility allows inspection of the ATM characteristics,
the PHY layer, including statistics of both, the retrival of the
list of currently open channels and also allows access to utopia(4).