Re: new snapshot available: grep-3.9.4-c83f

[Bruno Haible]

Jim Meyering wrote:
> this snapshot really was built with
> the very latest autoconf from master. Compare with grep-3.9, which
> was bootstrapped using a version of autoconf from October.
> ...
> grep snapshot:
>   https://meyering.net/grep/grep-ss.tar.xz      1.7 MB
>   https://meyering.net/grep/grep-ss.tar.xz.sig
>   https://meyering.net/grep/grep-3.9.4-c83f.tar.xz

The following platform-oriented tests showed no problems:
  * Compilation succeeded and all tests passed on
    - Ubuntu 22.04
    - Alpine Linux 3.14, 3.17
    - macOS 12.5
    - FreeBSD 13.1
    - OpenBSD 7.2 with gcc, with cc
    - Cygwin 2.9.0
    - Solaris 11.4
    - Solaris 11 OpenIndiana
    - AIX 7.1, 7.2
  * Compilation succeeded and only 1 test failure (known) on
    - NetBSD 9.0

I also did compiler-oriented tests: Compilation with
  - gcc 4.2.4, 4.3.6, 4.4.7, 4.5.4, 4.6.4, 4.7.4, 4.8.5, 4.9.4, 5.5.0,
    6.5.0, 7.5.0, 8.5.0, 9.5.0, 10.4.0, 11.3.0, 12.2.0,
  - clang 15, 16
and noticed

* From autoconf: only expected effects:

  gcc versions 4.2.4 ... 4.6.4 : uses -std=gnu99 by default
  gcc versions 4.7.3 ... 4.9.4 : uses -std=gnu11 by default
  gcc versions 5.5.0 ... 12.2.0 : uses no -std option by default

  clang version 15: ac_cv_c_undeclared_builtin_options=-fno-builtin
  clang version 16: ac_cv_c_undeclared_builtin_options='none needed'

* From gnulib: The test "checking whether stdint.h conforms to C99..."
  reported 'no' for gcc 4.7.3, 4.8.5. This is because of this code
  | #if 201112 <= __STDC_VERSION__
  | int k = _Generic (SIZE_MAX, size_t: 0);
  The effect is harmless: It just means that Gnulib prepares a substitute
  stdint.h although none would be necessary.

SUMMARY: No autoconf related problem is visible from this snapshot tarball.

Bruno