[at-spi2-atk] build: Disable deprecation warnings in stable cycles

[Emmanuele Bassi <ebassi src gnome org>]

commit b3c877c8d7ca25794a6ccd41b6cf99098204841b
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Apr 27 11:47:44 2018 +0100

    build: Disable deprecation warnings in stable cycles
    
    We know we're using deprecated API, so there's no real point in keeping
    the warnings.
    
    The deprecation warnings are useful during development cycles, so we can
    port away from deprecated API.

 meson.build |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/meson.build b/meson.build
index c6d0afd..8a0fbe0 100644
--- a/meson.build
+++ b/meson.build
@@ -17,6 +17,14 @@ host_system = host_machine.system()
 # XXX: for strcasecmp(); should use g_ascii_strcasecmp()
 add_project_arguments([ '-D_DEFAULT_SOURCE', ], language: 'c')
 
+# We are using deprecated API; don't warn if we're building stable
+# releases, to avoid making the build logs less readable. We keep
+# the warnings during development cycles, to remind us we should
+# port away from deprecated API
+if meson.project_version().split('.').get(1).to_int().is_even()
+  add_project_arguments([ '-DATK_DISABLE_DEPRECATION_WARNINGS' ], language: 'c')
+endif
+
 # XXX: Unused
 at_spi_conf = configuration_data()
 at_spi_conf.set('GETTEXT_PACKAGE', meson.project_name())