[atk] meson: Use the appropriate soversion

[Emmanuele Bassi <ebassi src gnome org>]

commit b54a6abd89710fb0956ca0b121b7358d777d3358
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon May 22 21:11:30 2017 +0100

    meson: Use the appropriate soversion
    
    The shared library should have a soversion of 0, so that Meson can
    create the appropriate symlinks to match what Autotools do.

 atk/meson.build |    1 +
 meson.build     |    3 ++-
 2 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/atk/meson.build b/atk/meson.build
index d92b6f0..83ae5ba 100644
--- a/atk/meson.build
+++ b/atk/meson.build
@@ -112,6 +112,7 @@ atk_inc = include_directories('.')
 libatk = shared_library('atk-@0@'.format(atk_api_version),
                         sources: atk_sources + atk_enums + atk_marshals,
                         soversion: atk_soversion,
+                        version: atk_libversion,
                         install: true,
                         dependencies: gobject_dep,
                         include_directories: [ root_inc, atk_inc ],
diff --git a/meson.build b/meson.build
index 1fd2ed5..af9b3dd 100644
--- a/meson.build
+++ b/meson.build
@@ -35,7 +35,8 @@ atk_conf.set_quoted('VERSION', meson.project_version())
 atk_conf.set_quoted('GETTEXT_PACKAGE', meson.project_name())
 
 # Maintain version scheme with libtool
-atk_soversion = '0.@0@.@1@'.format((atk_binary_age - atk_interface_age), atk_interface_age)
+atk_soversion = 0
+atk_libversion = '@0@.@1@.@2@'.format(atk_soversion, (atk_binary_age - atk_interface_age), atk_interface_age)
 
 add_project_arguments([ '-DG_DISABLE_SINGLE_INCLUDES', '-DATK_DISABLE_SINGLE_INCLUDES' ], language: 'c')