[sysprof] libsysprof: backport autoptr cleanups when necessary

[Christian Hergert <chergert src gnome org>]

commit 280f4b9415b35faf97e8e672c3b1934a1c46dbb3
Author: Christian Hergert <chergert redhat com>
Date:   Fri May 10 12:53:36 2019 -0700

    libsysprof: backport autoptr cleanups when necessary

 src/libsysprof/sysprof-backport-autocleanups.h | 12 ++++++++++++
 src/libsysprof/sysprof-helpers.c               |  1 +
 2 files changed, 13 insertions(+)
---
diff --git a/src/libsysprof/sysprof-backport-autocleanups.h b/src/libsysprof/sysprof-backport-autocleanups.h
new file mode 100644
index 0000000..2ff3792
--- /dev/null
+++ b/src/libsysprof/sysprof-backport-autocleanups.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include "config.h"
+
+#ifndef HAVE_POLKIT_AUTOPTR
+# include <polkit/polkit.h>
+
+  G_DEFINE_AUTOPTR_CLEANUP_FUNC (PolkitAuthority, g_object_unref)
+  G_DEFINE_AUTOPTR_CLEANUP_FUNC (PolkitAuthorizationResult, g_object_unref)
+  G_DEFINE_AUTOPTR_CLEANUP_FUNC (PolkitSubject, g_object_unref)
+#endif
+
diff --git a/src/libsysprof/sysprof-helpers.c b/src/libsysprof/sysprof-helpers.c
index 87d0061..740806f 100644
--- a/src/libsysprof/sysprof-helpers.c
+++ b/src/libsysprof/sysprof-helpers.c
@@ -26,6 +26,7 @@
 #include <polkit/polkit.h>
 
 #include "sysprof-helpers.h"
+#include "sysprof-backport-autocleanups.h"
 
 #include "helpers.h"
 #include "ipc-service.h"