[dpdk-dev] [PATCH v2 16/17] build: add option to version libs using DPDK version

[Bruce Richardson]

Normally, each library has it's own version number based on the ABI.
Add an option to have all libs just use the DPDK version number as the
.so version.

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
Reviewed-by: Harry van Haaren <harry.van.haaren at intel.com>
---
 drivers/meson.build | 8 +++++++-
 lib/meson.build     | 8 +++++++-
 meson_options.txt   | 1 +
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/meson.build b/drivers/meson.build
index f19da16fb..0c251bd61 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -92,6 +92,12 @@ foreach class:driver_classes
 						depends: [pmdinfogen, tmp_lib])
 			endforeach
 
+			if get_option('per_library_versions')
+				so_version = '@0 at .1'.format(version)
+			else
+				so_version = meson.project_version()
+			endif
+
 			# now build the driver itself, and add to the drivers list
 			lib_name = driver_name_fmt.format(name)
 			version_map = '@0@/@1@/@2 at _version.map'.format(
@@ -105,7 +111,7 @@ foreach class:driver_classes
 				c_args: cflags,
 				link_args: '-Wl,--version-script=' + version_map,
 				link_depends: version_map,
-				version: '@0 at .1'.format(version),
+				version: so_version,
 				install: true,
 				install_dir: driver_install_path)
 
diff --git a/lib/meson.build b/lib/meson.build
index d814721de..36652cfe1 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -76,6 +76,12 @@ foreach l:libraries
 			dep_objs += [get_variable('dep_rte_' + d)]
 		endforeach
 
+		if get_option('per_library_versions')
+			so_version = '@0 at .1'.format(version)
+		else
+			so_version = meson.project_version()
+		endif
+
 		version_map = '@0@/@1@/rte_ at 2@_version.map'.format(
 				meson.current_source_dir(), dir_name, name)
 		libname = 'rte_' + name
@@ -87,7 +93,7 @@ foreach l:libraries
 				include_directories: include_directories(dir_name),
 				link_args: '-Wl,--version-script=' + version_map,
 				link_depends: version_map,
-				version: '@0 at .1'.format(version),
+				version: so_version,
 				install: true)
 		dep = declare_dependency(link_with: lib,
 				include_directories: include_directories(dir_name),
diff --git a/meson_options.txt b/meson_options.txt
index 9c45b8159..636226ce8 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -6,3 +6,4 @@ option('allow_invalid_socket_id', type: 'boolean', value: false,
 	description: 'allow out-of-range NUMA socket id\'s for platforms that don\'t report the value correctly')
 option('enable_kmods', type: 'boolean', value: true, description: 'build kernel modules')
 option('kernel_dir', type: 'string', value: '', description: 'path to the kernel for building kernel modules')
+option('per_library_versions', type: 'boolean', value: true, description: 'true: each lib gets its own version number, false: DPDK version used for each lib')
-- 
2.13.5