From 3f2174676e7ff15fd7fbbfab2afcf2ecceb346ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
Date: Fri, 27 Nov 2020 18:21:29 +0100
Subject: [PATCH] device: Re-define polkit auto-pointer funcs if not defined

In case we're using an old polkit version that does not support
auto-pointers, we need to re-define such functions manually or fprintd
won't compile.

Given that polkit doesn't provide us version informations in headers we
need to get that from pkg-config
---
 config.h.in  | 3 +++
 meson.build  | 1 +
 src/device.c | 6 ++++++
 3 files changed, 10 insertions(+)

diff --git a/config.h.in b/config.h.in
index ebab457..d45da15 100644
--- a/config.h.in
+++ b/config.h.in
@@ -9,3 +9,6 @@
 
 /* Define to the version of this package. */
 #mesondefine VERSION
+
+/* Whether current polkit version supports autopointers */
+#mesondefine POLKIT_HAS_AUTOPOINTERS
diff --git a/meson.build b/meson.build
index 90ab529..d0aa764 100644
--- a/meson.build
+++ b/meson.build
@@ -139,6 +139,7 @@ cdata.set_quoted('GETTEXT_PACKAGE', meson.project_name())
 cdata.set_quoted('PACKAGE_VERSION', meson.project_version())
 cdata.set_quoted('VERSION', meson.project_version())
 cdata.set_quoted('SYSCONFDIR', sysconfdir)
+cdata.set('POLKIT_HAS_AUTOPOINTERS', polkit_gobject_dep.version().version_compare('>= 0.114'))
 
 config_h = configure_file(
   input: 'config.h.in',
diff --git a/src/device.c b/src/device.c
index 8c2dc2b..0ebf4bf 100644
--- a/src/device.c
+++ b/src/device.c
@@ -129,6 +129,12 @@ enum fprint_device_signals {
 static guint32 last_id = ~0;
 static guint signals[NUM_SIGNALS] = { 0, };
 
+#ifndef POLKIT_HAS_AUTOPOINTERS
+/* FIXME: Remove this once we're fine to depend on polkit 0.114 */
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (PolkitAuthorizationResult, g_object_unref)
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (PolkitSubject, g_object_unref)
+#endif
+
 static void
 session_data_unref(SessionData *session)
 {