* sverk/maximmai-pr640-autoconf/OTP-12646:
  Update config.guess and config.sub to latest versions

* rickard/time_api/OTP-11997: (22 commits)
  Update primary bootstrap
  inets: Suppress deprecated warning on erlang:now/0
  inets: Cleanup of multiple copies of functions Add inets_lib with common functions used by multiple modules
  inets: Update comments
  Suppress deprecated warning on erlang:now/0
  Use new time API and be back-compatible in inets Remove unused functions and removed redundant test
  asn1 test SUITE: Eliminate use of now/0
  Disable deprecated warning on erlang:now/0 in diameter_lib
  Use new time API and be back-compatible in ssh
  Replace all calls to now/0 in CT with new time API functions
  test_server: Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  Replace usage of erlang:now() with usage of new API
  otp_SUITE: Warn for calls to erlang:now/0
  Replace usage of erlang:now() with usage of new API
  Multiple timer wheels
  Erlang based BIF timer implementation for scalability
  Implement ethread events with timeout
  ...

Conflicts:
	bootstrap/bin/start.boot
	bootstrap/bin/start_clean.boot
	bootstrap/lib/compiler/ebin/beam_asm.beam
	bootstrap/lib/compiler/ebin/compile.beam
	bootstrap/lib/kernel/ebin/auth.beam
	bootstrap/lib/kernel/ebin/dist_util.beam
	bootstrap/lib/kernel/ebin/global.beam
	bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
	bootstrap/lib/kernel/ebin/inet_db.beam
	bootstrap/lib/kernel/ebin/inet_dns.beam
	bootstrap/lib/kernel/ebin/inet_res.beam
	bootstrap/lib/kernel/ebin/os.beam
	bootstrap/lib/kernel/ebin/pg2.beam
	bootstrap/lib/stdlib/ebin/dets.beam
	bootstrap/lib/stdlib/ebin/dets_utils.beam
	bootstrap/lib/stdlib/ebin/erl_tar.beam
	bootstrap/lib/stdlib/ebin/escript.beam
	bootstrap/lib/stdlib/ebin/file_sorter.beam
	bootstrap/lib/stdlib/ebin/otp_internal.beam
	bootstrap/lib/stdlib/ebin/qlc.beam
	bootstrap/lib/stdlib/ebin/random.beam
	bootstrap/lib/stdlib/ebin/supervisor.beam
	bootstrap/lib/stdlib/ebin/timer.beam
	erts/aclocal.m4
	erts/emulator/beam/bif.c
	erts/emulator/beam/erl_bif_info.c
	erts/emulator/beam/erl_db_hash.c
	erts/emulator/beam/erl_init.c
	erts/emulator/beam/erl_process.h
	erts/emulator/beam/erl_thr_progress.c
	erts/emulator/beam/utils.c
	erts/emulator/sys/unix/sys.c
	erts/preloaded/ebin/erlang.beam
	erts/preloaded/ebin/erts_internal.beam
	erts/preloaded/ebin/init.beam
	erts/preloaded/src/erts_internal.erl
	lib/common_test/test/ct_hooks_SUITE_data/cth/tests/empty_cth.erl
	lib/diameter/src/base/diameter_lib.erl
	lib/kernel/src/os.erl
	lib/ssh/test/ssh_basic_SUITE.erl
	system/doc/efficiency_guide/advanced.xml

The old time API is based on erlang:now/0. The major issue with
erlang:now/0 is that it was intended to be used for so many
unrelated things. This tied these unrelated operations together
and unnecessarily caused performance, scalability as well as
accuracy, and precision issues for operations that do not need
to have such issues. The new API spreads different functionality
over multiple functions in order to improve on this.

The new API consists of a number of new BIFs:
- erlang:convert_time_unit/3
- erlang:monotonic_time/0
- erlang:monotonic_time/1
- erlang:system_time/0
- erlang:system_time/1
- erlang:time_offset/0
- erlang:time_offset/1
- erlang:timestamp/0
- erlang:unique_integer/0
- erlang:unique_integer/1
- os:system_time/0
- os:system_time/1

and a number of extensions of existing BIFs:
- erlang:monitor(time_offset, clock_service)
- erlang:system_flag(time_offset, finalize)
- erlang:system_info(os_monotonic_time_source)
- erlang:system_info(time_offset)
- erlang:system_info(time_warp_mode)
- erlang:system_info(time_correction)
- erlang:system_info(start_time)

See the "Time and Time Correction in Erlang" chapter of the
ERTS User's Guide for more information.

Perfctr is a Linux kernel extension that allows programmatic access
to the performance monitoring counters found in most current CPUs.
However, development of perfctr ceased after 2010, and it cannot be
used with Linux kernels newer than 2.6.32.

Therefore the perfctr support code in the Erlang VM is effectively
dead code, so this patch removes it.