fix some "implicit declaration" warnings in libbsc
diff --git a/openbsc/include/openbsc/e1_config.h b/openbsc/include/openbsc/e1_config.h
new file mode 100644
index 0000000..538c0b0
--- /dev/null
+++ b/openbsc/include/openbsc/e1_config.h
@@ -0,0 +1,11 @@
+#ifndef _E1_CONFIG_H
+#define _E1_CONFIG_H
+
+#include <openbsc/gsm_data_shared.h>
+
+int e1_reconfig_ts(struct gsm_bts_trx_ts *ts);
+int e1_reconfig_trx(struct gsm_bts_trx *trx);
+int e1_reconfig_bts(struct gsm_bts *bts);
+
+#endif /* _E1_CONFIG_H */
+
diff --git a/openbsc/src/libbsc/bsc_init.c b/openbsc/src/libbsc/bsc_init.c
index 84dfa6e..28f32cc 100644
--- a/openbsc/src/libbsc/bsc_init.c
+++ b/openbsc/src/libbsc/bsc_init.c
@@ -33,6 +33,8 @@
#include <openbsc/chan_alloc.h>
#include <osmocom/core/talloc.h>
#include <openbsc/ipaccess.h>
+#include <osmocom/gsm/sysinfo.h>
+#include <openbsc/e1_config.h>
/* global pointer to the gsm network data structure */
extern struct gsm_network *bsc_gsmnet;