From 430c82a7e6e48e2457e5d1be397cff9eaca12d29 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Grubbstr=C3=B6m=20=28Grubba=29?=
 <grubba@grubba.org>
Date: Sat, 27 Nov 2021 15:55:06 +0100
Subject: [PATCH] Configure: More autoconf 2.71 fixes.

---
 src/aclocal.m4 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/aclocal.m4 b/src/aclocal.m4
index e9d483b2f4..53aac95064 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -501,7 +501,8 @@ EOF
   ORIG_AC_CHECK_SIZEOF([$1],[$2],[$3])
 ])
 
-define([ORIG_CHECK_HEADERS], defn([AC_CHECK_HEADERS]))
+m4_copy([AC_CHECK_HEADERS], [ORIG_CHECK_HEADERS])
+ifdef([_AC_CHECK_HEADERS], m4_copy([_AC_CHECK_HEADERS], [_ORIG_CHECK_HEADERS]))
 define([AC_CHECK_HEADERS],
 [
   if test "x$enable_binary" != "xno"; then
-- 
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