From 015d039e5f0433f4b6af2261a13ce42973de6b7c Mon Sep 17 00:00:00 2001
From: Bryan Hundven <bryanhundven@gmail.com>
Date: Sun, 26 Jun 2022 18:44:56 -0700
Subject: [PATCH] AC_PROG_LEX set to yywrap

With autoconf 2.70 and newer, you need to define either `yywrap`
or `noyywrap` as an option to AC_PROG_LEX.

https://www.gnu.org/software/autoconf/manual/autoconf-2.71/html_node/Particular-Programs.html#index-AC_005fPROG_005fLEX-1

`yywrap` is needed for kconfig.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 9d0df964..62ba6bfb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -93,7 +93,7 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CXX
 AC_PROG_CPP
-AC_PROG_LEX
+AC_PROG_LEX(yywrap)
 AC_PROG_YACC
 AS_IF([test -z "$CC" -o -z "$CXX"],
       [AC_MSG_ERROR([no suitable compiler found])])