Relocate global sm variable to reduce include file deps

The new state machine handling is not necessary to export to external
plugins, so this patch reduces the exposure of the global variable sm

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

finit.c

@@ -54,7 +54,6 @@ char *hostname  = NULL;
 char *rcsd      = FINIT_RCSD;
 char *runparts  = NULL;
 char *console   = NULL;
-sm_t sm;
 
 uev_ctx_t *ctx  = NULL;		/* Main loop context */
 

finit.h

@@ -35,8 +35,6 @@
 #include <unistd.h>
 #include <lite/lite.h>
 
-#include "sm.h"
-
 #define CMD_SIZE                256
 #define LINE_SIZE               1024
 #define BUF_SIZE                4096
@@ -80,7 +78,6 @@ extern char  *username;
 extern char  *runparts;
 extern char  *console;
 extern char  *__progname;
-extern sm_t  sm;
 
 #endif /* FINIT_H_ */
 

sm.c

@@ -35,6 +35,8 @@
 #include "tty.h"
 #include "sm.h"
 
+sm_t sm;
+
 void sm_init(sm_t *sm)
 {
 	sm->state = SM_BOOTSTRAP_STATE;

sm.h

@@ -40,6 +40,8 @@ typedef struct sm {
 	int in_teardown;          /* Set when waiting for all processes to be halted */
 } sm_t;
 
+extern sm_t  sm;
+
 void sm_init(sm_t *sm);
 void sm_step(sm_t *sm);
 void sm_set_runlevel(sm_t *sm, int newlevel);