osmo-bts: Include lapdm.h to fix autoconf usability test
Include the LAPDm header file so the size of struct lapdm_channel
is known and gsm_data_shared.h can be included by itself.
diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h
index 3a75398..fda3b09 100644
--- a/openbsc/include/openbsc/gsm_data_shared.h
+++ b/openbsc/include/openbsc/gsm_data_shared.h
@@ -19,6 +19,10 @@
#include <osmocom/abis/e1_input.h>
+#ifndef ROLE_BSC
+#include <osmocom/gsm/lapdm.h>
+#endif
+
struct osmo_bsc_data;
struct osmo_bsc_sccp_con;