timedated: use libsystemd-bus instead of libdbus for bus communication

Among other things this also adds a few things necessary for the change:

- Considerably more powerful error returning APIs in libsystemd-bus

- Adapter for connecting an sd_bus to an sd_event

- As I reworked the PolicyKit logic to the new library I also made it
  asynchronous, so that PolicyKit requests of one user cannot block out
  another user anymore.

- We always use the macro names for common bus error. That way it is
  harder to mistype them since the compiler will notice

1 files changed, 1 insertions, 0 deletions

diff --git a/src/libsystemd-bus/test-bus-kernel.c b/src/libsystemd-bus/test-bus-kernel.c
index 680dcde5b4..075903c2f4 100644
--- a/src/libsystemd-bus/test-bus-kernel.c
+++ b/src/libsystemd-bus/test-bus-kernel.c
@@ -28,6 +28,7 @@
 #include "bus-message.h"
 #include "bus-error.h"
 #include "bus-kernel.h"
+#include "bus-util.h"
 
 int main(int argc, char *argv[]) {
         _cleanup_close_ int bus_ref = -1;