From 7349940bdbc802aefeb792cb36c4b6d9e7043413 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 23 Oct 2001 07:54:16 +0000
Subject: added AC_PREREQ(2.50) to prevent autoconf mistakes

---
 configure.in | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.in b/configure.in
index dd80c394e..abc91383a 100644
--- a/configure.in
+++ b/configure.in
@@ -1,9 +1,16 @@
 dnl $Id$
 dnl Process this file with autoconf to produce a configure script.
+
+dnl Ensure that this file is processed with autoconf 2.50 or newer
+dnl Don't even think about removing this check!
+AC_PREREQ(2.50)
+
+dnl First some basic init macros
 AC_INIT
 AC_CONFIG_SRCDIR([lib/urldata.h])
 AM_CONFIG_HEADER(config.h src/config.h)
 
+dnl figure out the libcurl version
 VERSION=`sed -ne 's/^#define LIBCURL_VERSION "\(.*\)"/\1/p' ${srcdir}/include/curl/curl.h`
 AM_INIT_AUTOMAKE(curl,$VERSION)
 
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