From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <bruce.richardson@intel.com>
Received: from mga07.intel.com (mga07.intel.com [134.134.136.100])
 by dpdk.org (Postfix) with ESMTP id 36DDD2BA1
 for <dev@dpdk.org>; Fri,  9 Jun 2017 11:05:19 +0200 (CEST)
Received: from fmsmga002.fm.intel.com ([10.253.24.26])
 by orsmga105.jf.intel.com with ESMTP; 09 Jun 2017 02:05:18 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.39,317,1493708400"; d="scan'208";a="1180306197"
Received: from bricha3-mobl3.ger.corp.intel.com ([10.237.221.28])
 by fmsmga002.fm.intel.com with SMTP; 09 Jun 2017 02:05:16 -0700
Received: by  (sSMTP sendmail emulation); Fri, 09 Jun 2017 10:05:15 +0100
Date: Fri, 9 Jun 2017 10:05:15 +0100
From: Bruce Richardson <bruce.richardson@intel.com>
To: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>, dev <dev@dpdk.org>
Message-ID: <20170609090515.GB59768@bricha3-MOBL3.ger.corp.intel.com>
References: <20170607104743.275149-1-bruce.richardson@intel.com>
 <20170607162617.00d009ff@xeon-e3>
 <20170608085901.GC58216@bricha3-MOBL3.ger.corp.intel.com>
 <20170608092658.6a4bfc5c@xeon-e3>
 <CAATJJ0K3Nn0Oo8j+twO6zG5XRtCjRtBWGS1gx_qp2Pu5E7N-kQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAATJJ0K3Nn0Oo8j+twO6zG5XRtCjRtBWGS1gx_qp2Pu5E7N-kQ@mail.gmail.com>
Organization: Intel Research and =?iso-8859-1?Q?De=ACvel?=
 =?iso-8859-1?Q?opment?= Ireland Ltd.
User-Agent: Mutt/1.8.1 (2017-04-11)
Subject: Re: [dpdk-dev] [RFC PATCH] replace DPDK config and build system
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Fri, 09 Jun 2017 09:05:20 -0000

On Thu, Jun 08, 2017 at 12:07:05PM -0600, Christian Ehrhardt wrote:
> On Thu, Jun 8, 2017 at 10:26 AM, Stephen Hemminger <
> stephen@networkplumber.org> wrote:
> 
> > On a side note, it would be good to use the GCC extensions that allow
> > building different versions of the same routine into one binary.
> >
> 
> And we are back to the discussion we had two years ago about how to deliver
> generic yet also optimized binaries in one shot.
> But if the new build system can enable us to do so I'm all in for that.
> 
> Thanks for bringing this up in that context Stephen - might be just the
> right time to look at it again.
> 
Yep, we can do that. First though, we need to decide what our minimum
supported compiler baseline is going to be.
Also, if the replace the build system, do we want to do a complete
on-shot replacement, or do we want to keep the older one around in
parallel for a while e.g. to support older OS's and compilers.

/Bruce