From 46f998d7308cb18832666bc34ee54b1d9c27739f Mon Sep 17 00:00:00 2001
From: Nathaniel Russell <naterussell83@gmail.com>
Date: Sat, 13 Jan 2024 00:29:49 +0000
Subject: [PATCH] build: Add elogind support

---
 meson.build                           | 17 ++++++++++++-----
 meson_options.txt                     |  2 +-
 plugins/sharing/gsd-sharing-manager.c |  5 ++++-
 plugins/sharing/meson.build           |  7 ++++++-
 4 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/meson.build b/meson.build
index deecd3f1e..e07fa841b 100644
--- a/meson.build
+++ b/meson.build
@@ -111,13 +111,20 @@ x11_dep = dependency('x11')
 xfixes_dep = dependency('xfixes', version: '>= 6.0')
 
 enable_systemd = get_option('systemd')
-systemd_dep = dependency('systemd', version: '>= 243', required: enable_systemd)
-if systemd_dep.found()
-  systemd_userunitdir = systemd_dep.get_variable(pkgconfig: 'systemduserunitdir',
-                                                 pkgconfig_define: ['prefix', gsd_prefix])
+enable_elogind = get_option('elogind')
+
+if enable_systemd and enable_elogind
+  error('Only systemd or elogind support should be activated')
+elif enable_systemd
+  systemd_dep = dependency('systemd', version: '>= 243', required: true)
+  libsystemd_dep = dependency('libsystemd', version: '>= 243', required: true)
+  systemd_userunitdir = systemd_dep.get_pkgconfig_variable('systemduserunitdir',
+                                                           define_variable: ['prefix', gsd_prefix])
+elif enable_elogind
+  elogind_dep = dependency('libelogind', version: '>= 209', required: true)
 endif
-libsystemd_dep = dependency('libsystemd', version: '>= 243', required: enable_systemd)
 
+config_h.set10('HAVE_SYSTEMD_LIB', enable_systemd or enable_elogind)
 
 m_dep = cc.find_library('m')
 
diff --git a/meson_options.txt b/meson_options.txt
index 1d913b4d2..5e2cccab6 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,6 +1,6 @@
 option('udev_dir', type: 'string', value: '', description: 'Absolute path of the udev base directory')
 option('systemd', type: 'boolean', value: true, description: 'Enable systemd integration')
-
+option('elogind', type: 'boolean', value: false, description: 'Use elogind')
 option('alsa', type: 'boolean', value: true, description: 'build with ALSA support (not optional on Linux platforms)')
 option('gudev', type: 'boolean', value: true, description: 'build with gudev device support (not optional on Linux platforms)')
 option('cups', type: 'boolean', value: true, description: 'build with CUPS support')
diff --git a/plugins/sharing/gsd-sharing-manager.c b/plugins/sharing/gsd-sharing-manager.c
index 2ab2cb054..c669e7bde 100644
--- a/plugins/sharing/gsd-sharing-manager.c
+++ b/plugins/sharing/gsd-sharing-manager.c
@@ -20,12 +20,15 @@
 #include "config.h"
 
 #include <locale.h>
-#include <systemd/sd-login.h>
 #include <glib.h>
 #include <gio/gio.h>
 #include <gio/gdesktopappinfo.h>
 #include <glib/gstdio.h>
 
+#if HAVE_SYSTEMD_LIB
+#include <systemd/sd-login.h>
+#endif
+
 #if HAVE_NETWORK_MANAGER
 #include <NetworkManager.h>
 #endif /* HAVE_NETWORK_MANAGER */
diff --git a/plugins/sharing/meson.build b/plugins/sharing/meson.build
index bda21608a..c65c4f9a5 100644
--- a/plugins/sharing/meson.build
+++ b/plugins/sharing/meson.build
@@ -6,9 +6,14 @@ sources = files(
 deps = plugins_deps + [
   gio_unix_dep,
   libnotify_dep,
-  libsystemd_dep
 ]
 
+if enable_systemd
+  deps += libsystemd_dep
+elif enable_elogind
+  deps += elogind_dep
+endif
+
 if enable_network_manager
   deps += libnm_dep
 endif
-- 
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