https://bugs.gentoo.org/707206
--- a/src/globals.h
+++ b/src/globals.h
@@ -90,7 +90,7 @@ typedef enum {
 	RUNMODE_INETD    /* Running through inetd or similar */
 } ftp_runmode_t;
 
-ftp_runmode_t ftp_runmode;
+extern ftp_runmode_t ftp_runmode;
 
 void exit_program (void);
 
--- a/src/gui_helper.c
+++ b/src/gui_helper.c
@@ -39,6 +39,7 @@
 #include "binreloc.h"
 #include "system_accounts.h"
 
+extern ftp_runmode_t ftp_runmode;
 EggStatusIcon *status_icon = NULL;
 
 static gchar *sec_to_time (gulong sec)
--- a/src/main.c
+++ b/src/main.c
@@ -53,6 +53,7 @@
 gboolean timeout_update_activity (gpointer data);
 gboolean timeout_check_for_availability (gpointer data);
 
+ftp_runmode_t ftp_runmode;
 static ftp_runmode_t get_ftp_runmode (void);
 static void activity_show_error_message (const gchar *errmsg);
 static void activity_show_welcome_message (void);
--- a/src/mainwin_cb.c
+++ b/src/mainwin_cb.c
@@ -46,6 +46,7 @@
 
 popup_src_t popup_source;
 
+extern ftp_runmode_t ftp_runmode;
 gboolean usermanager_initialized = FALSE;
 
 static void update_adv_info (void)