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From: Thomas Monjalon <thomas@monjalon.net>
To: "Loftus, Ciara" <ciara.loftus@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"ferruh.yigit@xilinx.com" <ferruh.yigit@xilinx.com>
Subject: Re: [PATCH] net/af_xdp: limit libbpf version to <= v0.7.0
Date: Fri, 24 Jun 2022 12:10:26 +0200
Message-ID: <3237285.2IRrRt1zHL@thomas>
In-Reply-To: <MW4PR11MB5872B6A1801C8D6BDB4335438EB49@MW4PR11MB5872.namprd11.prod.outlook.com>
References: <20220624060634.295136-1-ciara.loftus@intel.com>
<9193135.JRmrKFJ9eK@thomas>
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Errors-To: dev-bounces@dpdk.org
24/06/2022 10:37, Loftus, Ciara:
> >
> > 24/06/2022 08:06, Ciara Loftus:
> > > Linking with libbpf v0.8.0 causes deprication warnings. As a temporary
> > > measure, prevent linking with libbpf versions v0.8.0 and greater. This
> > > limitation should be removed in the future when appropriate
> > > compatibility measures are introduced.
> > >
> > > Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
> > > ---
> > > -bpf_dep = dependency('libbpf', required: false, method: 'pkg-config')
> > > -if not bpf_dep.found()
> > > - bpf_dep = cc.find_library('bpf', required: false)
> > > -endif
> > > +bpf_dep = dependency('libbpf', version : '<=0.7.0', required: false,
> > method: 'pkg-config')
> >
> > It is also removing the find_library() method.
> > Any reason it was there?
> >
>
> My understanding is that one can't check the library version using that method.
> So it was a valid method of picking up the library until now where we always need to check the version before linking.
OK I see