File Fix-gcc10-issues.patch of Package osmocom-bb-sylvain-burst-ind

diff --git a/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h b/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h
index 4010a68..7f45f94 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h
+++ b/src/host/layer23/include/osmocom/bb/mobile/app_mobile.h
@@ -1,7 +1,7 @@
 #ifndef APP_MOBILE_H
 #define APP_MOBILE_H
 
-char *config_dir;
+extern char *config_dir;
 
 int l23_app_init(int (*mncc_recv)(struct osmocom_ms *ms, int, void *),
 	const char *config_file, uint16_t vty_port);
diff --git a/src/host/layer23/src/common/main.c b/src/host/layer23/src/common/main.c
index eb47b26..13dab05 100644
--- a/src/host/layer23/src/common/main.c
+++ b/src/host/layer23/src/common/main.c
@@ -49,7 +49,7 @@
 
 struct log_target *stderr_target;
 
-void *l23_ctx = NULL;
+extern void *l23_ctx = NULL;
 
 static char *layer2_socket_path = "/tmp/osmocom_l2";
 static char *sap_socket_path = "/tmp/osmocom_sap";
diff --git a/src/host/layer23/src/mobile/main.c b/src/host/layer23/src/mobile/main.c
index 1214077..b64fa42 100644
--- a/src/host/layer23/src/mobile/main.c
+++ b/src/host/layer23/src/mobile/main.c
@@ -48,7 +48,7 @@
 
 struct log_target *stderr_target;
 
-void *l23_ctx = NULL;
+extern void *l23_ctx = NULL;
 struct llist_head ms_list;
 static char *gsmtap_ip = 0;
 struct gsmtap_inst *gsmtap_inst = NULL;
diff --git a/src/host/layer23/src/mobile/mnccms.c b/src/host/layer23/src/mobile/mnccms.c
index 9fdc45f..ea392b8 100644
--- a/src/host/layer23/src/mobile/mnccms.c
+++ b/src/host/layer23/src/mobile/mnccms.c
@@ -32,7 +32,7 @@
 #include <osmocom/bb/mobile/mncc.h>
 #include <osmocom/bb/mobile/vty.h>
 
-void *l23_ctx;
+extern void *l23_ctx;
 static uint32_t new_callref = 1;
 static LLIST_HEAD(call_list);
 
diff --git a/src/host/layer23/src/mobile/subscriber.c b/src/host/layer23/src/mobile/subscriber.c
index b6dfc2f..0466464 100644
--- a/src/host/layer23/src/mobile/subscriber.c
+++ b/src/host/layer23/src/mobile/subscriber.c
@@ -35,7 +35,7 @@
  * if list is changed, the result is not written back to SIM */
 //#define TEST_EMPTY_FPLMN
 
-void *l23_ctx;
+extern void *l23_ctx;
 
 static void subscr_sim_query_cb(struct osmocom_ms *ms, struct msgb *msg);
 static void subscr_sim_update_cb(struct osmocom_ms *ms, struct msgb *msg);
diff --git a/src/host/layer23/src/mobile/vty_interface.c b/src/host/layer23/src/mobile/vty_interface.c
index ca1c582..1e845fb 100644
--- a/src/host/layer23/src/mobile/vty_interface.c
+++ b/src/host/layer23/src/mobile/vty_interface.c
@@ -41,7 +41,7 @@
 #include <osmocom/bb/mobile/gsm411_sms.h>
 #include <osmocom/vty/telnet_interface.h>
 
-void *l23_ctx;
+extern void *l23_ctx;
 
 int mncc_call(struct osmocom_ms *ms, char *number);
 int mncc_hangup(struct osmocom_ms *ms);