> -----Original Message-----
> From: Bruce Richardson <bruce.richard...@intel.com>
> Sent: 03 November 2023 22:21
> To: Srikanth Yalavarthi <syalavar...@marvell.com>
> Cc: David Marchand <david.march...@redhat.com>; Aaron Conole
> <acon...@redhat.com>; Igor Russkikh <irussk...@marvell.com>;
> dev@dpdk.org; Shivah Shankar Shankar Narayan Rao
> <sshankarn...@marvell.com>; Anup Prabhu <apra...@marvell.com>;
> Prince Takkar <ptak...@marvell.com>; sta...@dpdk.org
> Subject: [EXT] Re: [PATCH v4 1/1] build: add libarchive to external deps
>
> External Email
>
> ----------------------------------------------------------------------
> On Fri, Nov 03, 2023 at 09:38:53AM -0700, Srikanth Yalavarthi 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: sta...@dpdk.org
> >
> > Signed-off-by: Srikanth Yalavarthi <syalavar...@marvell.com>
>
> I think this is the cleanest solution to the problem you were having.
>
> Acked-by: Bruce Richardson <bruce.richard...@intel.com>
>
> One minor comment below. Patch is ok without taking it on board if you like.
>
> > ---
> > v4:
> > - Rebase over latest main
> > v3:
> > - Add to libarchive ext_deps
> > v2:
> > - Update ml/cnxk meson config
> > v1:
> > - Initial patch
> >
> > config/meson.build | 5 -----
> > drivers/ml/cnxk/meson.build | 1 +
> > lib/eal/meson.build | 3 +++
> > 3 files changed, 4 insertions(+), 5 deletions(-)
> >
> > diff --git a/config/meson.build b/config/meson.build index
> > 0968351740..250833d0a4 100644
> > --- a/config/meson.build
> > +++ b/config/meson.build
> > @@ -241,11 +241,6 @@ dpdk_conf.set('RTE_BACKTRACE',
> > cc.has_header('execinfo.h') or is_windows) libarchive =
> > dependency('libarchive', required: false, method: 'pkg-config') if
> libarchive.found()
> > dpdk_conf.set('RTE_HAS_LIBARCHIVE', 1)
> > - # Push libarchive link dependency at the project level to support
> > - # statically linking dpdk apps. Details at:
> > - # https://urldefense.proofpoint.com/v2/url?u=https-
> 3A__inbox.dpdk.org_dev_20210605004024.660267a1-
> 40sovereign_&d=DwIBAg&c=nKjWec2b6R0mOyPaz7xtfQ&r=SNPqUkGl0n_M
> s1iJa_6wD6LBwX8efL_NOyXvAX-iCMI&m=6Lg7j9wRNcl4gjqh1r9DHzydY-
> ufK1K63u-
> HpinJ3wSa4B3z1AUzWiaAsg3C5Cwp&s=PFchwx1MTzUrXGTLrJiy1bWDf4M7Y
> cSM8t3BNbGxLUg&e=
> > - add_project_link_arguments('-larchive', language: 'c')
> > - dpdk_extra_ldflags += '-larchive'
> > endif
> >
> > # check for libbsd
> > diff --git a/drivers/ml/cnxk/meson.build b/drivers/ml/cnxk/meson.build
> > index 0680a0faa5..921dc7e89b 100644
> > --- a/drivers/ml/cnxk/meson.build
> > +++ b/drivers/ml/cnxk/meson.build
> > @@ -67,6 +67,7 @@ sources += files(
> > 'mvtvm_ml_model.c',
> > )
> >
> > +ext_deps += libarchive
>
> minor nit - I don't think this is necessary. If libarchive is found, then
> DPDK eal
> will be linked against it, and so all other drivers should simply have that
> as a
> transitive dependency.
Agreed, this would not be necessary for libarchive. Removed in v5.
>
> Same probably applies to jansson.
Jansson is added to ext_deps by lib/metrics. However, 'lib/metrics' is optional
and can be disabled through -Ddisable_libs'
I think it would be good to add jansson_dep to ext_deps here to handle the case
when 'lib/metrics' is disabled.
Also, I am working on change that would remove Jansson as a dependency for
ml/cnxk. We will submit a separate patch for this.
>
> > ext_deps += jansson_dep
> > ext_deps += dlpack_dep
> > ext_deps += dmlc_dep
> > diff --git a/lib/eal/meson.build b/lib/eal/meson.build index
> > 9942104386..e1d6c4cf17 100644
> > --- a/lib/eal/meson.build
> > +++ b/lib/eal/meson.build
> > @@ -21,6 +21,9 @@ endif
> > if dpdk_conf.has('RTE_USE_LIBBSD')
> > ext_deps += libbsd
> > endif
> > +if dpdk_conf.has('RTE_HAS_LIBARCHIVE')
> > + ext_deps += libarchive
> > +endif
> > if cc.has_function('getentropy', prefix : '#include <unistd.h>')
> > cflags += '-DRTE_LIBEAL_USE_GETENTROPY'
> > endif
> > --
> > 2.42.0
> >
