From efa0731b9d75498c6ebaceb190b7a216b982bb11 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Sat, 2 Apr 2022 10:50:26 -0700
Subject: [PATCH] configure.ac: use LT_INIT if available

AC_PROG_LIBTOOL is deprecated. quiets a warning from autoconf 2.71:
configure.ac:12: warning: The macro `AC_PROG_LIBTOOL' is obsolete.

Change-Id: I3b131f5ee636a8df48057862e600759f25ad7289
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 68c3b2fc..22885107 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,7 +9,8 @@ dnl === automake >= 1.12 requires this for 'unusual archivers' support.
 dnl === it must occur before LT_INIT (AC_PROG_LIBTOOL).
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
-AC_PROG_LIBTOOL
+dnl === AC_PROG_LIBTOOL is deprecated.
+m4_ifdef([LT_INIT], [LT_INIT], [AC_PROG_LIBTOOL])
 AC_PROG_SED
 AM_PROG_CC_C_O