cli: declare external variable nm_cli in <nmcli.h> header

clients/cli/common.c

@@ -1170,10 +1170,6 @@ nmc_set_in_readline (gboolean in_readline)
 	pthread_mutex_unlock (&readline_mutex);
 }
 
-/* Global variable defined in nmcli.c */
-extern NmCli nm_cli;
-
-
 static char *
 nmc_readline_helper (const char *prompt)
 {

clients/cli/connections.c

@@ -261,9 +261,6 @@ typedef struct {
 } TabCompletionInfo;
 static TabCompletionInfo nmc_tab_completion = {NULL, NULL, NULL, NULL};
 
-/* Global variable defined in nmcli.c - used for TAB completion */
-extern NmCli nm_cli;
-
 static char *gen_connection_types (const char *text, int state);
 
 static void

clients/cli/devices.c

@@ -3572,9 +3572,6 @@ is_single_word (const char* line)
 		return FALSE;
 }
 
-/* Global variable defined in nmcli.c */
-extern NmCli nm_cli;
-
 static char *
 gen_func_ifnames (const char *text, int state)
 {

clients/cli/nmcli.h

@@ -161,6 +161,8 @@ typedef struct _NmCli {
 	NmcTermColor editor_prompt_color;                 /* Color of prompt in connection editor */
 } NmCli;
 
+extern NmCli nm_cli;
+
 /* Error quark for GError domain */
 #define NMCLI_ERROR (nmcli_error_quark ())
 GQuark nmcli_error_quark (void);
@@ -169,5 +171,4 @@ gboolean nmc_seen_sigint (void);
 void     nmc_clear_sigint (void);
 void     nmc_set_sigquit_internal (void);
 
-
 #endif /* NMC_NMCLI_H */

clients/cli/settings.c

@@ -2082,13 +2082,6 @@ typedef struct {
 	NmcPropertyFuncsFields
 } NmcPropertyFuncs;
 
-/*
- * We need NmCli in some _set_property functions, and they aren't passed NmCli.
- * So use the global variable.
- */
-/* Global variable defined in nmcli.c */
-extern NmCli nm_cli;
-
 NMSetting *
 nmc_setting_new_for_name (const char *name)
 {