master updated (166685a7d95 -> c3e6923b004)

[Paul Eggert]

eggert pushed a change to branch master.

      from  166685a7d95 Merge from savannah/emacs-30
       new  35365620e4c Refactor timefns more functionally
       new  0e221d3789a Refactor timefns order
       new  c45ae286b54 Refactor decode_ticks_hz via switch
       new  22a3a90f763 Split lisp_to_timespec in two
       new  34bde2f790d Push some time conversions down
       new  a6a3f322453 Speed up decode-time when not doing subseconds
       new  5e8a38ecb2a Rename timefns internals
       new  6ef052d9b23 Reduce size of integer product in timefns
       new  abafc6ca014 In timefns, prefer ui mul and div
       new  b6cbf0cbb66 In timefns, do gcd reduction more often
       new  2fb7bb41bee In timefns, call natnump only for non-fixnums
       new  1c8e64a9536 New FASTER_BIGNUM macro to test slow-path code
       new  0c850df888e Optimize smallish mpz to native int conversion
       new  75f53d7c2c1 In timefns.c avoid by-hand overflow checking
       new  e8b3c4cb58c Decode current time directly to timespec
       new  e30706fd12b Avoid mpz for some common timestamp cases
       new  c3e6923b004 Rename timefns static function lisp_time_struct


Summary of changes:
 src/bignum.c   |  34 ++-
 src/bignum.h   |  16 +-
 src/keyboard.c |  22 +-
 src/systime.h  |  14 +-
 src/timefns.c  | 858 ++++++++++++++++++++++++++++++++-------------------------
 5 files changed, 548 insertions(+), 396 deletions(-)