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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 77538C18E5B for ; Mon, 16 Mar 2020 17:53:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4AFCA20658 for ; Mon, 16 Mar 2020 17:53:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ndufresne-ca.20150623.gappssmtp.com header.i=@ndufresne-ca.20150623.gappssmtp.com header.b="CgMYHWNt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732181AbgCPRxg (ORCPT ); Mon, 16 Mar 2020 13:53:36 -0400 Received: from mail-qt1-f194.google.com ([209.85.160.194]:40774 "EHLO mail-qt1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730437AbgCPRxf (ORCPT ); Mon, 16 Mar 2020 13:53:35 -0400 Received: by mail-qt1-f194.google.com with SMTP id n5so15006420qtv.7 for ; Mon, 16 Mar 2020 10:53:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ndufresne-ca.20150623.gappssmtp.com; s=20150623; h=message-id:subject:from:to:cc:date:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=VUY3XhQvkgyRIWAbAJy5uAmmekImTEzF/mbKeTLe9p0=; b=CgMYHWNtcR/Fn9GdCqAf+azaOLsISz956XogFKumD0kaInz/U7zBYk4asy2N7iONhh rxPG/Ph1YKW+uRF5KiL79LfnwhmEqGe9SnSFMuy0N0OGhxHkW9Yps5Cj6CCssTUxb6IC Eq7lwsqw/OE62O/VLyXk1ov1UvBRYTFUil+RB0EEnxUgq0pfWIk/QEhYBz1n19Ne6xMD 7lC1b+5fJdBwlXA70TLKwNQhcaujtO1WTqOORyhXmDCcLIQIskRBD/TaKZ6HMxkLgujq i7cv4Y3oqGvdv8QRhwwqQi4VTXH0WSQhzwdnM5TLS5Jg61D+XixlDXjHIGOqVYiAgLuc rLjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=VUY3XhQvkgyRIWAbAJy5uAmmekImTEzF/mbKeTLe9p0=; b=I7+dIzT//0SZlk5rzGIIbClX909Fo+4XKvjTT0wtjT/8TBt0YkRSD4anPFioSceNhz UXnyYoSycLo6zKZMJ4NYqeIuhSl1fOeCAvmfJCkVrGKlkUYRIlj27J7tHmsJW9qcZdVm vbPYEvlzvI4vKuy8TLCIjB45TNstpOXT7zzZzxbUHpoxCXwtfK179AjUxF7oyn5MBYnu SYxZiI2K+EjV5LirT10A/KpRrIjYFRw6k/z/O9wetwXPKLsE5BE9qYEjArvNm4qFgWaz r1v3XXxScXAONXz5SyowrkwgZu2dkggbY/Qq5DJEwhyNgSAIvcgKCRBG2MOEi/nuLqvL 8PIw== X-Gm-Message-State: ANhLgQ35HGaJ99IvZUnGtq0b2o/298uWhIWSgP7/j2pdBQOkjd5e0Co8 EAyz1nUJ48GyyRgNVHVECIx+ZatJBh4= X-Google-Smtp-Source: ADFU+vulJXel28+4c/Z1rA5jFy/GtqRDH6ax+MISSNXnrxEWaqjXiF/U9ZeF8ZGdBhceiFLsEv5Xzw== X-Received: by 2002:aed:200f:: with SMTP id 15mr1331904qta.152.1584381214223; Mon, 16 Mar 2020 10:53:34 -0700 (PDT) Received: from skullcanyon ([192.222.193.21]) by smtp.gmail.com with ESMTPSA id z18sm304991qtz.77.2020.03.16.10.53.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2020 10:53:33 -0700 (PDT) Message-ID: <20f09be5066a1b85a7ef6152ff48d5417c47bac6.camel@ndufresne.ca> Subject: Re: [RFC PATCH v4l-utils 0/1] Introduce the meson build system From: Nicolas Dufresne To: Ezequiel Garcia , Hans Verkuil , linux-media@vger.kernel.org Cc: Sean Young , Philipp Zabel , Laurent Pinchart Date: Mon, 16 Mar 2020 13:53:32 -0400 In-Reply-To: References: <20200315205421.28797-1-ezequiel@collabora.com> <3479ebe3-1a62-f888-8b11-97ecd5b30cd2@xs4all.nl> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.34.4 (3.34.4-1.fc31) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Le lundi 16 mars 2020 à 13:29 -0300, Ezequiel Garcia a écrit : > Hi Hans, > > On Mon, 2020-03-16 at 10:17 +0100, Hans Verkuil wrote: > > On 3/15/20 9:54 PM, Ezequiel Garcia wrote: > > > Here's a first step towards using meson: > > > > > > https://mesonbuild.com/ > > > > > > As you can see, this doesn't include all tools and libraries > > > (are there any libv4l1 users?), > > > > Probably yes. > > > > but otherwise tries to cover > > > as much as possible. > > > > Last week I added options to build 32 bit variants of v4l2-ctl and v4l2-compliance, > > it will be interesting to see how meson does that. > > > > I'm not opposed to changing over to meson, but then the old system has to be removed > > either at the same time or in a second patch. > > > > I think some projects kept autotools for a while until the > transition to meson is complete. > > Any reason why we'd have to do the transition atomically? Having two (or more) build systems is usually of great pain. In GStreamer we went that route as we had to develop some extra features into Meson to support our much more complex use case. Today, meson is mature enough to allow a quick transition. Of course, having patches merged with few days of delay helps if you have CI and other Bot to update. An atomic transition would cause downtime in that context. > > Thanks, > Ezequiel >