From 881359183f163046ccc3c9dd4ded63a11e030e0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Tue, 13 Dec 2022 16:47:48 +0100
Subject: [PATCH] =?UTF-8?q?meson:=20make=20=E2=80=98backlight=E2=80=99=20p?=
 =?UTF-8?q?lugin=20compile=20time=20optional?=
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---
 meson.build         |  2 ++
 meson_options.txt   |  7 ++++++-
 modules/meson.build | 10 ++++++++--
 plugin.c            |  4 ++++
 4 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/meson.build b/meson.build
index f176467..102cbc0 100644
--- a/meson.build
+++ b/meson.build
@@ -133,6 +133,7 @@ yambar = executable(
                 decorations + particles + modules,
   c_args: [
     plugin_alsa_enabled ? '-DPLUGIN_ENABLED_ALSA' : [],
+    plugin_backlight_enabled ? '-DPLUGIN_ENABLED_BACKLIGHT' : [],
     plugin_dwl_enabled ? '-DPLUGIN_ENABLED_DWL' : [],
     plugin_mpd_enabled ? '-DPLUGIN_ENABLED_MPD' : [],
     plugin_pipewire_enabled ? '-DPLUGIN_ENABLED_PIPEWIRE' : [],
@@ -176,6 +177,7 @@ summary(
 summary(
   {
     'ALSA': plugin_alsa_enabled,
+    'Backlight': plugin_backlight_enabled,
     'DWL (dwm for Wayland)': plugin_dwl_enabled,
     'Music Player Daemon (MPD)': plugin_mpd_enabled,
     'Pipewire': plugin_pipewire_enabled,
diff --git a/meson_options.txt b/meson_options.txt
index fd0718f..ab8837f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -6,7 +6,12 @@ option(
   'core-plugins-as-shared-libraries', type: 'boolean', value: false,
   description: 'Compiles modules, particles and decorations as shared libraries, which are loaded on-demand')
 
-option('plugin-alsa', type: 'feature', value: 'auto', description: 'ALSA')
+option('plugin-alsa', type: 'feature', value: 'auto',
+       description: 'ALSA support')
+option('plugin-backlight', type: 'feature', value: 'auto',
+       description: 'Backlight support')
+option('plugin-battery', type: 'feature', value: 'auto',
+       description: 'Battery support')
 option('plugin-dwl', type: 'feature', value: 'auto',
        description: 'DWL (dwm for wayland) support')
 option('plugin-mpd', type: 'feature', value: 'auto',
diff --git a/modules/meson.build b/modules/meson.build
index 4adc705..e4b7027 100644
--- a/modules/meson.build
+++ b/modules/meson.build
@@ -2,7 +2,7 @@ module_sdk = declare_dependency(dependencies: [pixman, threads, tllist, fcft])
 
 modules = []
 
-udev = dependency('libudev')
+udev = dependency('udev')
 json = dependency('json-c')
 xcb_xkb = dependency('xcb-xkb', required: get_option('backend-x11'))
 
@@ -10,6 +10,9 @@ xcb_xkb = dependency('xcb-xkb', required: get_option('backend-x11'))
 alsa = dependency('alsa', required: get_option('plugin-alsa'))
 plugin_alsa_enabled = alsa.found()
 
+udev_backlight = dependency('libudev', required: get_option('plugin-backlight'))
+plugin_backlight_enabled = udev_backlight.found()
+
 mpd = dependency('libmpdclient', required: get_option('plugin-mpd'))
 plugin_mpd_enabled = mpd.found()
 
@@ -23,7 +26,6 @@ plugin_dwl_enabled = get_option('plugin-dwl').allowed()
 
 # Module name -> (source-list, dep-list)
 mod_data = {
-  'backlight': [[], [m, udev]],
   'battery': [[], [udev]],
   'clock': [[], []],
   'cpu': [[], []],
@@ -41,6 +43,10 @@ if plugin_alsa_enabled
   mod_data += {'alsa': [[], [m, alsa]]}
 endif
 
+if plugin_backlight_enabled
+  mod_data += {'backlight': [[], [m, udev_backlight]]}
+endif
+
 if plugin_dwl_enabled
   mod_data += {'dwl': [[], [dynlist]]}
 endif
diff --git a/plugin.c b/plugin.c
index a83dbad..8421176 100644
--- a/plugin.c
+++ b/plugin.c
@@ -35,7 +35,9 @@
 #if defined(PLUGIN_ENABLED_ALSA)
 EXTERN_MODULE(alsa);
 #endif
+#if defined(PLUGIN_ENABLED_BACKLIGHT)
 EXTERN_MODULE(backlight);
+#endif
 EXTERN_MODULE(battery);
 EXTERN_MODULE(clock);
 EXTERN_MODULE(disk_io);
@@ -129,7 +131,9 @@ init(void)
 #if defined(PLUGIN_ENABLED_ALSA)
     REGISTER_CORE_MODULE(alsa, alsa);
 #endif
+#if defined(PLUGIN_ENABLED_BACKLIGHT)
     REGISTER_CORE_MODULE(backlight, backlight);
+#endif
     REGISTER_CORE_MODULE(battery, battery);
     REGISTER_CORE_MODULE(clock, clock);
     REGISTER_CORE_MODULE(disk-io, disk_io);