From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 5E6AF3858D28 for ; Fri, 7 Jan 2022 09:56:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5E6AF3858D28 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1641549409; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=VwoDC0pQNoAnszgD8PiXJmFFNmQuwHdrhIoEBy8SkkU=; b=QJaglxz/PlSPPSBo3O0tU+qeBrRPZ6En5IZSohYFzRvOQBIeZFfpMeY6UURyFqeEgUAbPa zZUnzmQA+3J19J3VB1PS4MA6kcG4TkSW3nv2m52jJFvOqowiQ45EFuelhWzXSkhN6duyCc OAwxDlNg3GO/f9tG+E2lJ/u9R84LBB0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-278-ks3rGqGeOAiwDKgktYnLlA-1; Fri, 07 Jan 2022 04:56:47 -0500 X-MC-Unique: ks3rGqGeOAiwDKgktYnLlA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 181CA1023F4D for ; Fri, 7 Jan 2022 09:56:47 +0000 (UTC) Received: from calimero.vinschen.de (ovpn-112-6.ams2.redhat.com [10.36.112.6]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DD1561059156 for ; Fri, 7 Jan 2022 09:56:46 +0000 (UTC) Received: by calimero.vinschen.de (Postfix, from userid 500) id 5BDE6A8093E; Fri, 7 Jan 2022 10:56:45 +0100 (CET) Date: Fri, 7 Jan 2022 10:56:45 +0100 From: Corinna Vinschen To: newlib@sourceware.org Subject: Re: newlib: require autoconf-2.69 Message-ID: Reply-To: newlib@sourceware.org Mail-Followup-To: newlib@sourceware.org References: MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vinschen@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Spam-Status: No, score=-6.5 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_NUMSUBJECT, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: newlib@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Jan 2022 09:56:50 -0000 On Jan 5 20:46, Mike Frysinger wrote: > On 05 Jan 2022 13:10, Corinna Vinschen wrote: > > On Dec 30 13:39, Mike Frysinger wrote: > > > The top-level newlib dir is already using autoconf-2.69, and all the > > > subdirs are using autoconf-2.68. Update them all to use 2.69 as a > > > prereq and then regenerate them accordingly. > > > > > > The README file already says to use autoconf-2.69. > > > > Yeah, but... > > > > The AC_PREREQ only checks for the minimum required autoconf version for > > *this* specific autoconf file. AC_PREREQ([2.52]) doesn't mean we have to > > use 2.52, but any later version will suffice. All current autoconf > > files are compatible with 2.69. Neither binutils-gdb, nor gcc changed > > their files to require 2.69. So it's note quite clear to me what this > > patch accomplishes. > > that's incorrect. gcc & binutils-gdb have config/override.m4 which requires > autoconf-2.69 exactly is used. no older versions, no newer versions, only > 2.69 is permitted. You're right, but that's not what I was up to. Requiring 2.69 doesn't mean we have to (or even should) change AC_PREREQ in every single file. But, anyway, it probably won't hurt either, so just go ahead. > > Autoconf 2.71 is the next version introducing backward incompatibilities. > > Wouldn't it make more sense to fix up the incompatibilities (if any) > > and update the affected files to 2.71 to be more future-proof? > > since newlib keeps its top-level files & config/ files in sync with the > binutils-gdb & gcc repos, i don't think moving to a version diff from them > is a good idea. unless you want to completely throw away all of the top > level files and have newlib/libgloss go their own completely independent > route. > -mike Ok. Thanks, Corinna