From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH] port: fix build when KNI support is not
	enabled
Date: Wed, 22 Jun 2016 13:49:39 +0200
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References: <191edb8105649612fab5f0e691f587715b78e664.1466595242.git.pmatilai@redhat.com>
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Cc: dev@dpdk.org, cristian.dumitrescu@intel.com, zhuangwj@gmail.com,
 olivier.matz@6wind.com
To: Panu Matilainen <pmatilai@redhat.com>
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2016-06-22 14:34, Panu Matilainen:
> --- a/lib/librte_port/Makefile
> +++ b/lib/librte_port/Makefile
> @@ -82,6 +82,8 @@ DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_mempool
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_ether
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_ip_frag
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_sched
> +ifeq ($(CONFIG_RTE_LIBRTE_KNI),y)
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_kni
> +endif

I do not remember why $(CONFIG_RTE_LIBRTE_PORT) is needed in its Makefile.
I think we can do
	DEPDIRS-$(CONFIG_RTE_LIBRTE_KNI) += lib/librte_kni
and set DEPDIRS-y everywhere else.