misc: Fix compilation warnings
bsc_api.c:417:3: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ [-Wformat]
bsc_api.c: In function ‘handle_ass_fail’:
bsc_api.c:458:3: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ [-Wformat]
db.c: In function ‘db_sync_subscriber’:
db.c:785:3: warning: format ‘%i’ expects argument of type ‘int’, but argument 8 has type ‘time_t’ [-Wformat]
osmo_msc.c: In function ‘msc_release_connection’:
osmo_msc.c:145:20: warning: unused variable ‘trans’ [-Wunused-variable]
smpp_smsc.c: In function ‘link_accept_cb’:
smpp_smsc.c:891:24: warning: assignment from incompatible pointer type [enabled by default]
smpp_smsc.c:271:1: warning: ‘esme_by_system_id’ defined but not used [-Wunused-function]
smpp_openbsc.c: In function ‘smpp_openbsc_init’:
smpp_openbsc.c:545:2: warning: implicit declaration of function ‘smpp_vty_init’ [-Wimplicit-function-declaration]
osmo_bsc_ctrl.c: In function ‘verify_bts_loc’:
osmo_bsc_ctrl.c:340:19: warning: variable ‘height’ set but not used [-Wunused-but-set-variable
smpp_mirror.c: In function ‘main’:
smpp_mirror.c:297:2: warning: implicit declaration of function ‘osmo_init_logging’ [-Wimplicit-function-declaration]
diff --git a/openbsc/src/utils/smpp_mirror.c b/openbsc/src/utils/smpp_mirror.c
index 213c681..59e341d 100644
--- a/openbsc/src/utils/smpp_mirror.c
+++ b/openbsc/src/utils/smpp_mirror.c
@@ -10,6 +10,7 @@
#include <smpp34_structs.h>
#include <smpp34_params.h>
+#include <osmocom/core/application.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/talloc.h>