[atk] meson: follow option convetions

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 67ffa20b53210b16972419bcf02f8a0702712cf9
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Tue Apr 17 08:44:15 2018 +0200

    meson: follow option convetions
    
    https://bugzilla.gnome.org/show_bug.cgi?id=795301

 atk/meson.build   |    4 +---
 meson.build       |    2 +-
 meson_options.txt |    8 ++++----
 3 files changed, 6 insertions(+), 8 deletions(-)
---
diff --git a/atk/meson.build b/atk/meson.build
index 7b5a683..616a3e6 100644
--- a/atk/meson.build
+++ b/atk/meson.build
@@ -137,9 +137,7 @@ libatk_dep = declare_dependency(link_with: libatk,
                                 dependencies: gobject_dep,
                                 sources: atk_enum_h)
 
-disable_introspection = get_option('disable_introspection')
-
-if not meson.is_cross_build() and not disable_introspection
+if not meson.is_cross_build() and get_option('introspection')
   gnome.generate_gir(libatk,
                      sources: atk_sources + atk_headers + [ atk_enum_h ] + [ atk_version_h ],
                      namespace: 'Atk',
diff --git a/meson.build b/meson.build
index b2384bd..539afbc 100644
--- a/meson.build
+++ b/meson.build
@@ -130,6 +130,6 @@ subdir('atk')
 subdir('tests')
 subdir('po')
 
-if get_option('enable_docs')
+if get_option('docs')
   subdir('docs')
 endif
diff --git a/meson_options.txt b/meson_options.txt
index 562a498..c4542dc 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,8 +1,8 @@
-option('enable_docs',
+option('docs',
        description: 'Build API reference for ATK using GTK-Doc',
        type: 'boolean',
        value: false)
-option('disable_introspection',
-       description: 'Do not build introspection files, even when GObject-Introspection is found',
+option('introspection',
+       description: 'Whether to build introspection files',
        type: 'boolean',
-       value: false)
+       value: true)