From a4b214b93ac741edef9c41e55865b0b867ca2587 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Tue, 25 Oct 2022 23:45:03 +0300
Subject: [PATCH] Build: Use AC_CONFIG_HEADERS instead of the ancient
 AC_CONFIG_HEADER.

We require Autoconf >= 2.69 and that has AC_CONFIG_HEADERS.

There is a warning about AC_PROG_CC_C99 being obsolete but
it cannot be removed because it is needed with Autoconf 2.69.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 170f48ec..fe4a2a82 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ AC_INIT([XZ Utils], m4_esyscmd([/bin/sh build-aux/version.sh]),
 AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
-AC_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 
 echo
 echo "$PACKAGE_STRING"