From ee3bc62f621e2812824b86f3efdb05f4ead134ab Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Fri, 9 Jul 2021 13:55:15 -0700
Subject: [PATCH] Do not use AC_HEADER_STDC

This fixes compatibility with autotools 2.70+
---
 configure.ac | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index 01b61097f..2823ecd7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -101,14 +101,8 @@ AM_WITH_DMALLOC
 #
 # Checks for header files.
 #
-AC_HEADER_STDC
 AC_CHECK_HEADERS([strings.h libgen.h unistd.h direct.h sys/stat.h])
 
-# REQUIRE standard C headers
-if test "$ac_cv_header_stdc" != yes; then
-	AC_MSG_ERROR([Standard (ANSI/ISO C89) header files are required.])
-fi
-
 #
 # Checks for typedefs, structures, and compiler characteristics.
 #