From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF45FC4321D for ; Mon, 20 Aug 2018 16:00:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 68D5621581 for ; Mon, 20 Aug 2018 16:00:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 68D5621581 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arndb.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726730AbeHTTQj (ORCPT ); Mon, 20 Aug 2018 15:16:39 -0400 Received: from mail-qk0-f178.google.com ([209.85.220.178]:40321 "EHLO mail-qk0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726033AbeHTTQj (ORCPT ); Mon, 20 Aug 2018 15:16:39 -0400 Received: by mail-qk0-f178.google.com with SMTP id c126-v6so11164597qkd.7 for ; Mon, 20 Aug 2018 09:00:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=A0ku84hZ3cs6lLdN/8yr5XoCp3NXz1CewyVR7QbZP8A=; b=IT5+031uClHVgqRR/vuSFS0fkSNBMvbk89esq8GdU8r6rVAgH1UQ4oNiCwn4ZTpJi0 mv0MsMylOg2Jc3iNNR1DSZPGcNFEpD9+rfX7fGxwzmFXNdFjC5ObcrS0PfI1nnh93wuw RPTAkkfBUO4sHdBUq5zbcoZbW913x5ytwYFhmltXL054ijweYlP4wcgY65fDvtfdnj0F vd6cs1zEItN/RE/qXwx3U6TvgM7HtHeasAlc8tIE/mhEPfoXXLtCt9Jv5bdkj3vaEU78 7WtVOAjX1uI/4vErxT/1zYfvD1/tHc8gRaS3TPP2JNI0IdEmerdJnsQQNIAXUghS+yw4 Oxmg== X-Gm-Message-State: AOUpUlEXSvez1WEB9GacGVGzKnm+sXD2+GTqDbUaNVrS7yeByGTqzKzg ZKiwblqVKPZx1Cve0SmOyeKDXCym2WK9i6JDDCo= X-Google-Smtp-Source: AA+uWPyi5xr28x22s1acXsUAUvXayyooGpMgzyCms3EduniTu7pgYcMkN+EFuln3rCOIhjt7fF/X4NYFYcMcTaMlnX0= X-Received: by 2002:a37:7946:: with SMTP id u67-v6mr40697115qkc.283.1534780826864; Mon, 20 Aug 2018 09:00:26 -0700 (PDT) MIME-Version: 1.0 References: <20180814170904.GA12768@roeck-us.net> <20180814143655.3acd4bb211d44747f77e74f2@linux-foundation.org> <20180814221559.GA15888@roeck-us.net> <20180814160208.4f4dd7ca142912f5894ddddd@linux-foundation.org> <87ca655c-e73a-286f-e69d-30fed9d00d77@roeck-us.net> In-Reply-To: From: Arnd Bergmann Date: Mon, 20 Aug 2018 18:00:10 +0200 Message-ID: Subject: Re: Build failures with gcc 4.5 and older To: Thomas Gleixner Cc: Guenter Roeck , Linus Torvalds , Andrew Morton , Linux Kernel Mailing List , Rik van Riel , Mike Galbraith , Dave Hansen Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 20, 2018 at 4:58 PM Thomas Gleixner wrote: > > On Tue, 14 Aug 2018, Guenter Roeck wrote: > > > > For my part I am all for making gcc 4.6 mandatory. > > No objections from my side. gcc-4.6 is also what I suggested a while ago as a good choice for a new minimum version, back then I met some objection, but as time passes these probably got less important: https://lkml.org/lkml/2016/12/16/174 To recap the distros that I looked at back then using gcc older than 4.6, I found four: RHEL6: gcc-4.4 Debian 6: gcc-4.4 Ubuntu 10.04: gcc-4.4 SLES11: gcc-4.3 The first three are all finally EOL as of this month, only SLES11 with gcc-4.3 is still supported in principle: Service Pack Release FCS Date General Ends LTSS Ends SUSE Linux Enterprise Server 11 24 Mar 2009 31 Dec 2010 N/A SUSE Linux Enterprise Server 11 SP1 02 Jun 2010 31 Aug 2012 30 Aug 2015 SUSE Linux Enterprise Server 11 SP2 29 Feb 2012 31 Jan 2014 30 Jan 2017 SUSE Linux Enterprise Server 11 SP3 01 Jul 2013 31 Jan 2016 30 Jan 2019 SUSE Linux Enterprise Server 11 SP4 15 Jul 2015 31 Mar 2019 31 Mar 2022 However, installing the disro's SDK package on SLES11-SP3 brings it up to gcc-4.7, or gcc-5.2 for SP4, so this is unlikely to cause much of a problem any more. I also have some ideas for cleanups that can be done now, in particular to deal with compiler warnings. Arnd