From patchwork Thu Jul 21 23:50:35 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Theodore Ts'o X-Patchwork-Id: 106188 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id EC9F9B6F71 for ; Fri, 22 Jul 2011 09:50:43 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752978Ab1GUXul (ORCPT ); Thu, 21 Jul 2011 19:50:41 -0400 Received: from li9-11.members.linode.com ([67.18.176.11]:49490 "EHLO test.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752194Ab1GUXul (ORCPT ); Thu, 21 Jul 2011 19:50:41 -0400 Received: from root (helo=tytso-glaptop) by test.thunk.org with local-esmtp (Exim 4.69) (envelope-from ) id 1Qk30p-0005A3-Au; Thu, 21 Jul 2011 23:50:39 +0000 Received: from tytso by tytso-glaptop with local (Exim 4.71) (envelope-from ) id 1Qk30n-00015a-U7; Thu, 21 Jul 2011 19:50:37 -0400 From: Theodore Ts'o To: Ext4 Developers List , xfs@oss.sgi.com Cc: Theodore Ts'o Subject: [PATCH XFSPROGS 1/3] configure.in: Declare a requirement for at least autoconf 2.50 Date: Thu, 21 Jul 2011 19:50:35 -0400 Message-Id: <1311292237-4155-1-git-send-email-tytso@mit.edu> X-Mailer: git-send-email 1.7.4.1.22.gec8e1.dirty X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on test.thunk.org); SAEximRunCond expanded to false Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Debian/Ubuntu systems, if autoconf version 2.13 is installed, autoconf will try to automatically figure out whether autoconf 2.13 or something more modern is required (since the autoconf maintainers, curses be upon them, didn't bother to maintain compatibility between autoconf 2.13 and 2.50). Unfortunately, the hueristics aren't perfect, and although the configure.in file looks superficially like it will be compatible with autoconf 2.13, it isn't. You will end up with a number of very subtle compilation failures if you use autoconf 2.13. So declare a requirement for autoconf 2.50 using AC_PREREQ(2.50). Signed-off-by: "Theodore Ts'o" --- configure.in | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/configure.in b/configure.in index 10c4c61..664c0e9 100644 --- a/configure.in +++ b/configure.in @@ -1,4 +1,5 @@ AC_INIT(include/libxfs.h) +AC_PREREQ(2.50) AC_CONFIG_AUX_DIR([.]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_HEADER(include/platform_defs.h)