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=-7.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 5BB7CC433DF for ; Fri, 21 Aug 2020 14:40:07 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 282162078B for ; Fri, 21 Aug 2020 14:40:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DFVaJriE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 282162078B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56422 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k98D8-0007RF-CC for qemu-devel@archiver.kernel.org; Fri, 21 Aug 2020 10:40:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34128) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k98CX-00071E-Dh for qemu-devel@nongnu.org; Fri, 21 Aug 2020 10:39:29 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:24993 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k98CV-000094-14 for qemu-devel@nongnu.org; Fri, 21 Aug 2020 10:39:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1598020765; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Sq9NM5bhOX0fWu58pya/c7atIOIPUEuLv4T9H4mtjbU=; b=DFVaJriENgDPAwr/Gyts9C2R61qe5jjydXOO+Zeur9BxbPFfwr0Tkx+2HscceUWFxRgUJY XqHQoldx2K2PWjRTTAonwcObTGaaK5d5kT6TGwsyfvMG1BYQRyXXpbjDl5q54OZtrNMxhe AEC7IERqQN0Yy85f9TifcR0YUgO0adE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-462--Y9LKQbxNBuHBg09xTkVPA-1; Fri, 21 Aug 2020 10:39:22 -0400 X-MC-Unique: -Y9LKQbxNBuHBg09xTkVPA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CEFD681F039; Fri, 21 Aug 2020 14:39:21 +0000 (UTC) Received: from [10.3.114.53] (ovpn-114-53.phx2.redhat.com [10.3.114.53]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 64E8A7BE99; Fri, 21 Aug 2020 14:39:21 +0000 (UTC) Subject: Re: ANNOUNCE: build system conversion to Meson has landed To: Peter Maydell , QEMU Developers References: From: Eric Blake Organization: Red Hat, Inc. Message-ID: Date: Fri, 21 Aug 2020 09:39:20 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eblake@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=205.139.110.120; envelope-from=eblake@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/20 23:41:39 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/21/20 8:49 AM, Peter Maydell wrote: > Hi; we've just merged Paolo's patchset that converts the build system > to use Meson. This should mostly be fairly seamless for the average > developer (we hope) but there are a few things to be aware of: > > * you probably want to do a distclean or otherwise do a clean build > when you first update your git tree to a version of master with Meson > (especially if you do in-tree builds) > * out-of-tree builds should continue to work basically normally > * we have retained compatibility for an "in-tree build" workflow where > you run configure/make in the source tree, but this is now implemented > by having configure create a build tree for you under-the-hood > (but do consider switching to just doing out-of-tree builds) If you do an in-tree build, do the 'make distclean' _before_ a 'git pull' of the new code. If you don't clean first, the pull attempt is likely to complain about various trace.h files, so that is a good reminder. And if you manage to pull anyway, you may need to rewind your tree back to v5.1.0 before attempting the in-tree 'make distclean', then re-try the pull. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org