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From: Bruce Richardson <bruce.richardson@intel.com>
To: David Marchand <david.marchand@redhat.com>
Cc: Srikanth Yalavarthi <syalavarthi@marvell.com>,
	Aaron Conole <aconole@redhat.com>,
	Igor Russkikh <irusskikh@marvell.com>, <dev@dpdk.org>,
	<sshankarnara@marvell.com>, <aprabhu@marvell.com>,
	<ptakkar@marvell.com>, <stable@dpdk.org>
Subject: Re: [PATCH v5 1/1] build: add libarchive to external deps
Date: Mon, 6 Nov 2023 16:23:59 +0000	[thread overview]
Message-ID: <ZUkTH69hX5j2GBjE@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CAJFAV8zVtkg5Mjp=6HF7WL+kufi0RxB-ov5oyde76fwOGjfhZA@mail.gmail.com>

On Mon, Nov 06, 2023 at 05:03:10PM +0100, David Marchand wrote:
> On Mon, Nov 6, 2023 at 5:12 AM Srikanth Yalavarthi
> <syalavarthi@marvell.com> wrote:
> >
> > In order to avoid linking with Libs.private, libarchive is not added to
> > ext_deps during the meson setup stage.
> >
> > Since libarchive is not added to ext_deps, cross-compilation or native
> > compilation with libarchive installed in non-standard location fails
> > with errors related to "cannot find -larchive" or "archive.h: No such
> > file or directory". In order to fix the build failures, user is
> > required to define the 'c_args' and 'c_link_args' with '-I<includedir>'
> > and '-L<libdir>'.
> >
> > This patch adds libarchive to ext_deps and further would not require
> > setting c_args and c_link_args externally.
> >
> > Fixes: 40edb9c0d36b ("eal: handle compressed firmware") Cc:
> > stable@dpdk.org
> >
> > Signed-off-by: Srikanth Yalavarthi <syalavarthi@marvell.com>
> 
> This breaks static compilation of applications.  This can be reproduced
> with test-meson-builds.sh and in GHA (which was not linking examples
> statically, I added a patch in my github repo):
> https://github.com/david-marchand/dpdk/actions/runs/6772879600/job/18406442129#step:19:19572
> 
The libarchive-dev Ubuntu package does not install all its needed
dependencies for static linking. The errors can be resolved by manually
installing the 3 missing -dev packages.

It's less than ideal, but to my mind, DPDK is behaving correctly with this
fix - it is marking that it requires libarchive as a dependency. The fact
that the libarchive.pc file lists static libraries that aren't installed is
outside of our control. The previous implementation hacked around this by
just passing -larchive in all cases, rather than using pkg-config
information. This then caused other issues that the patch submitter hit.

/Bruce

  reply	other threads:[~2023-11-06 16:24 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-20 17:01 [PATCH 1/1] build: update link args and includes for libarchive Srikanth Yalavarthi
2023-10-23  9:26 ` Bruce Richardson
2023-10-23 11:40   ` [EXT] " Srikanth Yalavarthi
2023-10-23 11:53     ` Bruce Richardson
2023-10-23 12:46       ` Srikanth Yalavarthi
2023-10-23 13:00         ` Bruce Richardson
2023-10-23 13:06           ` Bruce Richardson
2023-10-23 14:01             ` Srikanth Yalavarthi
2023-10-26 12:53               ` Srikanth Yalavarthi
2023-10-29  8:10 ` [PATCH v2 1/1] build: add libarchive to external deps Srikanth Yalavarthi
2023-10-29  8:20 ` [PATCH v3 " Srikanth Yalavarthi
2023-11-03 16:38 ` [PATCH v4 " Srikanth Yalavarthi
2023-11-03 16:50   ` Bruce Richardson
2023-11-06  4:27     ` [EXT] " Srikanth Yalavarthi
2023-11-06  4:12 ` [PATCH v5 " Srikanth Yalavarthi
2023-11-06  8:53   ` Bruce Richardson
2023-11-06 15:24     ` Thomas Monjalon
2023-11-06 15:32       ` Thomas Monjalon
2023-11-06 16:03   ` David Marchand
2023-11-06 16:23     ` Bruce Richardson [this message]
2023-11-06 18:17       ` David Marchand

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