From 85ce12e08c5a337a14976269485b593d5ee8d18e Mon Sep 17 00:00:00 2001
From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Date: Sat, 18 Jun 2022 08:08:09 +0900
Subject: [PATCH] configure.ac: use LT_INIT instead of AC_PROG_LIBTOOL

The latter is diagnosed as obsolete in Autoconf 2.70.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 6475c2e..36bee9e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,8 @@ AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
 AC_USE_SYSTEM_EXTENSIONS
-AC_PROG_LIBTOOL
+LT_PREREQ([2.4])
+LT_INIT
 AC_PATH_PROG([LDCONFIG], [ldconfig],
 	[AC_MSG_ERROR([ldconfig not found])],
 	[$PATH:/sbin])