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Fri, 21 Aug 2020 10:54:40 +0000 (UTC) Date: Fri, 21 Aug 2020 12:54:39 +0200 From: Kevin Wolf To: Paolo Bonzini Subject: Re: [PATCH v2] configure: add support for pseudo-"in source tree" builds Message-ID: <20200821105439.GE5153@linux.fritz.box> References: <20200820173124.243984-1-berrange@redhat.com> <814594a0-391c-01fb-a418-234e477793d3@redhat.com> <20200821100426.GB5153@linux.fritz.box> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=205.139.110.61; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/21 01:00:15 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: Peter Maydell , Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , Stefan Hajnoczi , qemu-devel@nongnu.org, Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Am 21.08.2020 um 12:15 hat Paolo Bonzini geschrieben: > On 21/08/20 12:04, Kevin Wolf wrote: > >> So I'm not sure why the first build gets as far as it does, but does NOT > >> complete things and yet does not fail make, but my advice is that you should > >> NOT try to an incremental build on in-tree build when crossing the meson > >> epoch. If you are a fan of in-tree convenience, you need a ONE-TIME > >> distclean when pulling in these changes (the fact that you HAVE to clean up > >> trace.h files to merge in the meson stuff should be a hint for that). After > >> that has been done, you can go back to pretending meson supports in-tree. > > Sounds like it will be painful to switch between branches based on make > > and branches based on meson. By extension, it will also be painful to > > check out and build old versions for comparison, or doing that even more > > than once during git bisect. :-( > > Not if you switch to out-of-tree builds... I don't see what out-of-tree builds change about this unless I delete and reconfigure them after each step? Even in those cases where I use out-of-tree builds, I often reuse the same directory. Kevin