diff -pNarZu5 daemon.orig/vcom_client.c daemon/vcom_client.c
--- daemon.orig/vcom_client.c	2018-11-14 11:29:12.000000000 -0500
+++ daemon/vcom_client.c	2020-05-20 22:49:01.768339863 -0400
@@ -35,11 +35,12 @@
 #include "vcom.h"
 //#include "vcom_debug.h"
 
 #define RBUF_SIZE	4096
 
-extern void * stk_mon; 
+void * stk_mon; 
+struct vc_monitor vc_mon;
 
 int recv_second_chance(int sock, char * buf, int buflen)
 {
 	int ret;
 	struct timeval tv;
diff -pNarZu5 daemon.orig/vcom.h daemon/vcom.h
--- daemon.orig/vcom.h	2018-11-14 11:29:12.000000000 -0500
+++ daemon/vcom.h	2020-05-20 22:48:26.010912918 -0400
@@ -112,11 +112,11 @@ static inline struct vc_ops * stk_curnt(
 #define INO_PUSH_SWITCH 0
 #define INO_POP_SWITCH 0
 #define INO_RPLS_SWITCH 0
 #define INO_RESTART_SWITCH 0
 
-void * stk_mon;
+extern void * stk_mon;
 
 /* 
  *	state machine stack
  */
 #define _expmsg(msg, len) \
diff -pNarZu5 daemon.orig/vcom_monitor_dbg.h daemon/vcom_monitor_dbg.h
--- daemon.orig/vcom_monitor_dbg.h	2018-11-14 11:29:12.000000000 -0500
+++ daemon/vcom_monitor_dbg.h	2020-05-20 22:48:48.918064379 -0400
@@ -29,11 +29,11 @@ struct vc_monitor{
 	int pid;
 	int max_statl;
 	int dbg_first;
 	char fname[FNAME_LEN];
 };
-struct vc_monitor vc_mon;
+extern struct vc_monitor vc_mon;
 
 static inline int mon_init(char * fname)
 {
 	vc_mon.fd = -1;
 	vc_mon.addr = 0;
diff -pNarZu5 daemon.orig/vcom_monitor.h daemon/vcom_monitor.h
--- daemon.orig/vcom_monitor.h	2018-11-14 11:29:12.000000000 -0500
+++ daemon/vcom_monitor.h	2020-05-20 22:49:32.225667990 -0400
@@ -27,11 +27,11 @@ struct vc_monitor{
 	int fd;
 	int pid;
 	int msgl;
 	char fname[FNAME_LEN];
 };
-struct vc_monitor vc_mon;
+extern struct vc_monitor vc_mon;
 
 static inline int mon_init(char * fname)
 {
 	vc_mon.fd = -1;
 	vc_mon.addr = 0;
diff -pNarZu5 daemon.orig/vcom_monitor_pre_stat.h daemon/vcom_monitor_pre_stat.h
--- daemon.orig/vcom_monitor_pre_stat.h	2018-11-14 11:29:12.000000000 -0500
+++ daemon/vcom_monitor_pre_stat.h	2020-05-20 22:43:28.883368206 -0400
@@ -27,11 +27,11 @@ struct vc_monitor{
 	int pid;
 	int msgl;
 	char pre_stat[16];
 	char fname[FNAME_LEN];
 };
-struct vc_monitor vc_mon;
+extern struct vc_monitor vc_mon;
 
 static inline int mon_init(char * fname)
 {
 	vc_mon.fd = -1;
 	vc_mon.addr = 0;