From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH] app/testpmd: fix static build link ordering
Date: Fri, 13 Jan 2017 16:53:46 +0100
Message-ID: <2563842.f8ghPspXGG@xps13>
References: <1484207214-13638-1-git-send-email-jerin.jacob@caviumnetworks.com>
 <6167bd74-c515-fc12-744d-9168a633c646@intel.com>
 <20170113032155.GA31838@localhost.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7Bit
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dev@dpdk.org, stable@dpdk.org
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44])
 by dpdk.org (Postfix) with ESMTP id E5DF5AB08
 for <dev@dpdk.org>; Fri, 13 Jan 2017 16:53:47 +0100 (CET)
Received: by mail-wm0-f44.google.com with SMTP id r126so70890109wmr.0
 for <dev@dpdk.org>; Fri, 13 Jan 2017 07:53:47 -0800 (PST)
In-Reply-To: <20170113032155.GA31838@localhost.localdomain>
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>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

2017-01-13 08:51, Jerin Jacob:
> On Thu, Jan 12, 2017 at 03:27:30PM +0000, Ferruh Yigit wrote:
> > On 1/12/2017 1:58 PM, Jerin Jacob wrote:
> > > On Thu, Jan 12, 2017 at 10:26:08AM +0100, Thomas Monjalon wrote:
> > >> 2017-01-12 13:16, Jerin Jacob:
> > >>> +ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
> > >>>  _LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe
> > >>> +endif
> > >>
> > >> _LDLIBS is an internal variable of rte.app.mk.
> > >> Please could you check that there is no issue when using LDLIBS instead
> > >> of _LDLIBS?
> > > 
> LDLIBS is not helping the situation as LDLIBS comes before the _LDLIBS-y
> mk/rte.app.mk:LDLIBS += $(_LDLIBS-y) $(CPU_LDLIBS) $(EXTRA_LDLIBS)
> 
> But moving to EXTRA_LDLIBS looks OK.But it has to be under CONFIG_RTE_LIBRTE_IXGBE_PMD
> 
> Thomas, Ferruh
> Let me know if you have any objection on below mentioned diff
> 
> -ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
> -_LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe
> +ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y)
> +EXTRA_LDLIBS += -lrte_pmd_ixgbe
>  endif

You need to keep the shared lib check.
Anyway, EXTRA_LDLIBS should be reserved to users and not used in a Makefile.
I prefer your initial patch using _LDLIBS.

Any objection to merge initial proposal?