[grilo-plugins] build: Support controlling gnome-online-accounts dep

[Bastien Nocera <hadess src gnome org>]

commit 2eb45242a939c8590a4689a37e91e0603640b4f7
Author: Mart Raudsepp <leio gentoo org>
Date:   Sat Feb 16 14:44:44 2019 +0200

    build: Support controlling gnome-online-accounts dep
    
    On Gentoo, some users prefer to disable gnome-online-accounts since it
    brings in the large WebKitGTK dependency.
    
    Since this commit adds a 'feature' option, raise the meson requirement
    to 0.47.0 which is the version that introduced the feature.

 meson.build       | 4 ++--
 meson_options.txt | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 74a5d2a9..5f8c7cd4 100644
--- a/meson.build
+++ b/meson.build
@@ -13,7 +13,7 @@ project('grilo-plugins', 'c',
             'warning_level=1'
         ],
         license: 'LGPL 2.1',
-        meson_version: '>= 0.44.0')
+        meson_version: '>= 0.47.0')
 
 plugin_version = meson.project_version()
 version_array = plugin_version.split('.')
@@ -52,7 +52,7 @@ avahi_glib_dep = dependency('avahi-glib', required: false)
 avahi_gobject_dep = dependency('avahi-gobject', required: false)
 gio_dep = dependency('gio-2.0', required: false)
 gio_unix_dep = dependency('gio-unix-2.0', required: false)
-goa_dep = dependency('goa-1.0', version: '>= 3.17.91', required: false)
+goa_dep = dependency('goa-1.0', version: '>= 3.17.91', required: get_option('goa'))
 gom_dep = dependency('gom-1.0', version: '>= 0.4', required: false)
 grilo_net_dep = dependency('grilo-net-0.3', version: '>= 0.3.0', required: false,
                            fallback: ['grilo', 'libgrlnet_dep'])
diff --git a/meson_options.txt b/meson_options.txt
index f5132228..1e0ea090 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -21,4 +21,5 @@ option('enable-tmdb', type: 'combo', choices: [ 'auto', 'yes', 'no' ], value: 'a
 option('enable-tracker', type: 'combo', choices: [ 'auto', 'yes', 'no' ], value: 'auto', description: 
'Enable Tracker plugin (DEPRECATED)')
 option('enable-tracker3', type: 'combo', choices: [ 'auto', 'yes', 'no' ], value: 'auto', description: 
'Enable Tracker3 plugin')
 option('enable-youtube', type: 'combo', choices: [ 'auto', 'yes', 'no' ], value: 'auto', description: 
'Enable YouTube plugin')
+option('goa', type: 'feature', value: 'auto', description: 'Enable gnome-online-accounts usage')
 option('help', type: 'combo', choices: [ 'yes', 'no' ], value: 'yes', description: 'Build examples 
developers')