From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [PATCH v2 2/2] build: add drivers_install_subdir
	meson option
Date: Tue, 2 Oct 2018 15:28:05 +0100
Message-ID: <20181002142805.GA13012@bricha3-MOBL.ger.corp.intel.com>
References: <20180928175803.12955-1-bluca@debian.org>
 <20181002130646.14919-1-bluca@debian.org>
 <20181002130646.14919-2-bluca@debian.org>
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Cc: dev@dpdk.org, tredaelli@redhat.com, christian.ehrhardt@canonical.com,
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To: Luca Boccassi <bluca@debian.org>
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On Tue, Oct 02, 2018 at 02:06:46PM +0100, Luca Boccassi wrote:
> Allow users and packagers to override the default dpdk/drivers
> subdirectory where the PMDs get installed under $lib.
> 
> Signed-off-by: Luca Boccassi <bluca@debian.org>
> ---
>  meson.build       | 10 ++++++++--
>  meson_options.txt |  2 ++
>  2 files changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/meson.build b/meson.build
> index 4bd04b9de3..9f7f17f7fe 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -20,8 +20,14 @@ dpdk_extra_ldflags = []
>  pver = meson.project_version().split('.')
>  major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
>  
> -driver_install_path = join_paths(get_option('libdir'), 'dpdk',
> -	'pmds-' + major_version)
> +pmd_subdir_opt = get_option('drivers_install_subdir')
> +if pmd_subdir_opt == 'dpdk/pmds-XX.YY'
> +	driver_install_path = join_paths(get_option('libdir'),
> +		'dpdk', 'pmds-' + major_version)
> +else
> +	driver_install_path = join_paths(get_option('libdir'),
> +		pmd_subdir_opt)
> +endif

Not sure I like this degree of hard-coding of paths. While meson doesn't
have a string replace function, we can still use "sed" via run_command to
perform some substitution, or else get a little creative using split if it
can be made work. That would allow us to put in e.g "<VERSION>" as a
generic placeholder in the text.

/Bruce