[tz] [PROPOSED 0/5] Finish off support for C23 standard attributes

[Paul Eggert]

The attached patches update tzcode to use the remaining C23 standard
attributes that look useful for tzcode. I don't see any tzcode use for
the C23 attributes 'deprecated' and 'nodiscard'.

Paul Eggert (5):
  Use C23 [[noreturn]] if available
  Pacify gcc -std=c89 -pedantic with new attributes
  Use C23 [[reproducible]] if available.
  Use C23 [[unsequenced]] if available
  Use C23 [[fallthrough]] if available

 Makefile    |  2 +-
 date.c      |  2 +-
 localtime.c |  4 +--
 private.h   | 77 ++++++++++++++++++++++++++++++++++++++++++++---------
 zdump.c     | 10 +++----
 zic.c       | 32 +++++++++++-----------
 6 files changed, 90 insertions(+), 37 deletions(-)

--
2.37.2