doc/meson.build: convert option "documentation" to Meson "feature"

This allows automatic optional detection of Sphinx. This will be useful when we start building the manpages with Sphinx, which many users may want to have.
MusicPlayerDaemon · Aug 14, 2020 · 2e73e60 · 2e73e60
1 parent 2bcd851
commit 2e73e60
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Showing 3 changed files with 7 additions and 5 deletions.
diff --git a/doc/meson.build b/doc/meson.build
@@ -1,6 +1,10 @@
 install_man(['mpd.1', 'mpd.conf.5'])
 
-sphinx = find_program('sphinx-build')
+sphinx = find_program('sphinx-build', required: get_option('documentation'))
+if not sphinx.found()
+  subdir_done()
+endif
+
 sphinx_output = custom_target(
   'HTML documentation',
   output: 'html',

diff --git a/meson.build b/meson.build
@@ -543,9 +543,7 @@ install_data(
   install_dir: join_paths(get_option('datadir'), 'doc', meson.project_name()),
 )
 
-if get_option('documentation')
-  subdir('doc')
-endif
+subdir('doc')
 
 if get_option('test')
   subdir('test')

diff --git a/meson_options.txt b/meson_options.txt
@@ -1,4 +1,4 @@
-option('documentation', type: 'boolean', value: false, description: 'Build documentation')
+option('documentation', type: 'feature', description: 'Build documentation')
 
 option('test', type: 'boolean', value: false, description: 'Build the unit tests and debug programs')