build: add weston-launch-group option

This allows to set the weston-launch group during the build. This may be useful for the compliance with the target system policy.

The default is weston-launch.

Signed-off-by: Vladimir D. Seleznev vseleznv@altlinux.org

libweston/meson.build

@@ -235,6 +235,10 @@ if get_option('weston-launch')
 		error('pam_open_session not found for weston-launch')
 	endif
 
+	weston_launch_group = get_option('weston-launch-group')
+	config_h.set_quoted('WESTON_LAUNCH_GROUP', weston_launch_group)
+	message('weston-launch group is set to ' + weston_launch_group)
+
 	executable(
 		'weston-launch',
 		'weston-launch.c',