[libmediaart] meson: Add with-docs option

[Carlos Garnacho <carlosg src gnome org>]

commit 01c6eb37dc77120c6a05fb26e3e97ad19af53844
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Aug 10 13:12:43 2017 +0200

    meson: Add with-docs option
    
    Allows disabling the API reference docs.

 docs/reference/libmediaart/meson.build |   16 +++++++++-------
 meson_options.txt                      |    1 +
 2 files changed, 10 insertions(+), 7 deletions(-)
---
diff --git a/docs/reference/libmediaart/meson.build b/docs/reference/libmediaart/meson.build
index 7ecb911..601ea43 100644
--- a/docs/reference/libmediaart/meson.build
+++ b/docs/reference/libmediaart/meson.build
@@ -1,8 +1,10 @@
-version_xml = configure_file(input: 'version.xml.in',
-    output: 'version.xml',
-    configuration: conf)
+if get_option('with-docs') != 'no'
+    version_xml = configure_file(input: 'version.xml.in',
+        output: 'version.xml',
+        configuration: conf)
 
-gnome.gtkdoc('libmediaart',
-    src_dir: 'libmediaart',
-    main_xml: 'libmediaart-docs.xml',
-    install: true)
+    gnome.gtkdoc('libmediaart',
+        src_dir: 'libmediaart',
+        main_xml: 'libmediaart-docs.xml',
+        install: true)
+endif
diff --git a/meson_options.txt b/meson_options.txt
index 9fc8221..6169e46 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,2 +1,3 @@
 option('image_library', type: 'combo', choices: ['auto', 'gdk-pixbuf', 'qt4', 'qt5'],
        description: 'Which image processing backend to use')
+option('with-docs', type : 'combo', choices : ['auto', 'yes', 'no'], value : 'auto')