AC_CONFIG_HEADER has been replaced with AC_CONFIG_HEADERS in 2001
and is no longer documented.
>From 8955d84252dddaa661a412618984aefd7fe1bdf5 Mon Sep 17 00:00:00 2001
From: Bruno Haible <br...@clisp.org>
Date: Tue, 23 Jan 2018 09:04:05 +0100
Subject: [PATCH] Don't use an undocumented Autoconf macro.
* configure.ac: Use AC_CONFIG_HEADERS instead of AC_CONFIG_HEADER.
---
configure.ac | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 681ba6d..a76f831 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,7 +30,7 @@ AM_INIT_AUTOMAKE([1.11 dist-xz no-dist-gzip subdir-objects
color-tests parallel-tests])
AM_SILENT_RULES([yes]) # make --enable-silent-rules the default.
-AC_CONFIG_HEADER([lib/config.h:lib/config.hin])
+AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
AC_PROG_AWK
AC_PROG_CC
--
2.7.4
