On 2024-04-30 11:24, Alan Coopersmith wrote:
the biggest source of problems was not function prototypes,
but the change of "true" and "false" to no longer be acceptable lvalues,
and of "bool" to be a builtin type.
Thanks for mentioning that, as I hadn't run into that problem. I
installed the attached.From 76ac2c1d735a3cc1646b452d38633ec1c6a3ce0d Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@xxxxxxxxxxx>
Date: Tue, 30 Apr 2024 11:41:36 -0700
Subject: [PATCH] Mention C keywords in NEWS
Thanks to Alan Coopersmith for mentioning this in:
https://lists.gnu.org/r/autoconf/2024-04/msg00011.html
---
NEWS | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/NEWS b/NEWS
index 952a7cc6..60c6dcdd 100644
--- a/NEWS
+++ b/NEWS
@@ -5,8 +5,10 @@ GNU Autoconf NEWS - User visible changes.
** Backward incompatibilities
*** AC_PROG_CC now prefers C23 if available.
- C23 has removed old-style (K&R) function definitions/declarations.
- Old-style functions should be updated to use prototypes.
+ Older code may need to be updated, as C23 has removed old-style
+ (K&R) function definitions and declarations, and has new keywords
+ alignas, alignof, bool, constexpr, false, nullptr, static_assert,
+ thread_local, typeof, typeof_unqual, true.
*** AC_PROG_CC no longer tests for VLAs, or whether __STDC__ is defined.
This ports better to MSVC, which does not support variable length
--
2.44.0
