From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 28 Mar 2023 01:10:36 +0000 (-0700)
Subject: mention prototypes more prominently in NEWS
X-Git-Tag: v2.72d~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ffc09fca39de051537fbebd7c6c33d5255a520f;p=thirdparty%2Fautoconf.git

mention prototypes more prominently in NEWS

* NEWS: Mention the function prototype issue early.
(From a suggestion by Zack Weinberg.)
---

diff --git a/NEWS b/NEWS
index cf01ee21..d64648c6 100644
--- a/NEWS
+++ b/NEWS
@@ -4,6 +4,14 @@ GNU Autoconf NEWS - User visible changes.
 
 ** Backward incompatibilities
 
+*** AC_CHECK_FUNC and similar macros now use function prototypes.
+  AC_CHECK_FUNC and and similar macros now use C declarations with
+  function prototypes, a feature introduced in C89.  The new approach
+  should work better with C23, which removed the non-prototyped K&R
+  style that AC_CHECK_FUNC previously used.  However, this change
+  means Autoconf no longer supports pre-1989 C compilers, as they do
+  not support function prototypes.
+
 *** Autoconf now requires perl 5.10 (2007) or later.
   Generated 'configure' scripts continue to run without perl.