Re: [dpdk-dev] [PATCH v3 2/2] build: add drivers_install_subdir meson option

[Bruce Richardson <bruce.richardson@intel.com>]

On Tue, Oct 02, 2018 at 04:25:56PM +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>
> ---
> v3: changed default value to <VERSION> and use string.contains rather
>     than exact equivalence
> 
>  meson.build       | 10 ++++++++--
>  meson_options.txt |  2 ++
>  2 files changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/meson.build b/meson.build
> index 4bd04b9de3..2e3cbac587 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.contains('<VERSION>')
> +	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
>  eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
>  

The diff (to your patch) below demonstrates more of what I had in mind :-)
Basically do a replace of '<VERSION>' with the version number, leaving the
remaining string unchanged.

/Bruce

diff --git a/meson.build b/meson.build
index 2e3cbac58..11697861c 100644
--- a/meson.build
+++ b/meson.build
@@ -22,12 +22,9 @@ major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
 
 pmd_subdir_opt = get_option('drivers_install_subdir')
 if pmd_subdir_opt.contains('<VERSION>')
-	driver_install_path = join_paths(get_option('libdir'),
-		'dpdk', 'pmds-' + major_version)
-else
-	driver_install_path = join_paths(get_option('libdir'),
-		pmd_subdir_opt)
+	pmd_subdir_opt = major_version.join(pmd_subdir_opt.split('<VERSION>'))
 endif
+driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
 
 # configure the build, and make sure configs here and in config folder are