patch 9.0.1823: Autoconf 2.69 too old Commit: https://github.com/vim/vim/commit/a96d544bc355b1a6021feccf5fa2bd5659bc5269 Author: Illia Bobyr <illia.bobyr@gmail.com> Date: Wed Aug 30 16:30:15 2023 +0200 patch 9.0.1823: Autoconf 2.69 too old Problem: Autoconf 2.69 too old Solution: Migrate to Autoconf 2.71 Autoconf 2.69 is almost 10 years old. And 2.71 is also a few years old as well. Should be pretty well tested by now. It brings a lot of improvements and there seems to be an ongoing work on autoconf 2.72 already. This change just addresses two minor changes `autoupdate` suggested, and then `src/auto/configure` is regenerated by running cd src make AUTOCONF=autoconf2.71 autoconf closes: #12958 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Illia Bobyr <illia.bobyr@gmail.com>

#!/bin/sh
# toolcheck -- check for tools that have severe bugs. Good that all the buggy
#	       tools identify by version numbers. This is the spirit of GNU :-)
#
# 24.7.95 jw.

retval=0
reply="`sh -version -c exit 2>&1 < /dev/null`"
case "$reply" in
	GNU*1.14.3*)
		echo "- sh is	'$reply'";
		echo "  CAUTION: This shell has a buggy 'trap' command.";
		echo "           The configure script may fail silently.";
		retval=1;
		;;
	GNU*)
		echo "- sh is	'$reply' - probably OK.";
		;;
	*)	;;
esac

reply="`sed --version 2>&1 < /dev/null`"
case "$reply" in
	GNU\ sed\ version\ 2.0[34])
		echo "- sed is	'$reply'";
		echo "  CAUTION: This sed cannot configure screen properly."
		retval=1;
		;;
	GNU\ sed\ version\ 2.05|GNU\ sed\ version\ 2.03\ kevin)
		echo "- sed is	'$reply' - good.";
		;;
	GNU*)	echo "- sed is	'$reply'.";
		;;
	*)	;;
esac
exit $retval