[musl] [C23 divers headers 00/17] boring header update

[Jens Gustedt <Jens.Gustedt@inria.fr>]

These are patches that should be more or less boring for new features
that have been already in POSIX and similar.

But evidently they need critical eyes.

Jens Gustedt (17):
  C23: add the WIDTH macros for the standard integer types
  C23: Add the *_WIDTH macros to stdint.h
  C23: add call_once to stdlib.h
  C23: add timegm, gmtime_r and localtime_r to time.h in C23 mode
  C23: memccpy, strdup and strndup are now standard C
  C23: adapt setjmp.h
  C23: change the noreturn functions in stdlib.h
  C23: change the noreturn function in threads.h
  C23: update stdbool.h
  C23: remove the contents of stdalign.h
  C23: remove the static_assert macro
  C23: change the assert macro to ... arguments
  C23: add the __STDC_VERSION_ASSERT_H__ macro
  C23: allow va_start to receive only one argument
  C23: add the unreachable macro
  C23: add the nullptr_t type
  C23: add the __STDC_VERSION_STDDEF_H__ macro

 include/assert.h       | 17 +++++++---
 include/limits.h       | 18 ++++++++++
 include/setjmp.h       |  6 ++--
 include/stdalign.h     | 18 +++++-----
 include/stdarg.h       |  9 +++--
 include/stdbool.h      | 10 ++++--
 include/stddef.h       | 16 +++++++--
 include/stdint.h       | 77 ++++++++++++++++++++++++++++++++++++++++--
 include/stdlib.h       | 12 ++++---
 include/string.h       | 11 +++---
 include/threads.h      |  2 +-
 include/time.h         |  7 ++--
 src/exit/_Exit.c       |  2 +-
 src/exit/abort.c       |  2 +-
 src/exit/exit.c        |  2 +-
 src/exit/quick_exit.c  |  2 +-
 src/thread/thrd_exit.c |  2 +-
 17 files changed, 168 insertions(+), 45 deletions(-)

-- 
2.34.1