zxbox: make source files include their header file and make function static where possible

Change-Id: I0c87563ee29f46948e3a559c27b1b22d4404cec1

apps/plugins/zxbox/interf.c

@@ -19,6 +19,7 @@
  */
 
 #include "zxconfig.h"
+#include "zxmisc.h"
 #include "interf.h"
 
 #include <stdio.h>

apps/plugins/zxbox/spconf.h

@@ -30,7 +30,7 @@ extern char *spcf_init_tapefile;
 extern int   spcf_init_tapefile_type;
 
 
-/*extern int  spcf_read_conf_file(const char *filename);*/
+extern int  spcf_read_conf_file(const char *filename);
 extern void spcf_read_command_line(const void* parameter);
 extern void spcf_read_xresources(void);
 extern int  spcf_find_file_type(char *filename, int *ftp, int *ftsubp);

apps/plugins/zxbox/spscr.h

@@ -23,7 +23,6 @@
 
 #include "z80_type.h"
 
-extern int scrmul;
 extern volatile int screen_visible;
 
 extern void init_spect_scr(void);

apps/plugins/zxbox/spsound.c

@@ -189,7 +189,7 @@ void autoclose_sound(void)
   }
 #endif
 }
-void get_more(unsigned char** start, size_t* size)
+static void get_more(unsigned char** start, size_t* size)
 {
     doneplay = 1;
     rb->pcm_play_stop();
@@ -199,7 +199,7 @@ void get_more(unsigned char** start, size_t* size)
 
 /* sp_sound_buf is Unsigned 8 bit, Rate 8000 Hz, Mono */
 
-void write_buf(void){
+static void write_buf(void){
     int i,j;
 
     /* still not sure what is the best way to do this */

apps/plugins/zxbox/zxbox.c

@@ -21,6 +21,7 @@
 
 #include "zxconfig.h"
 #include "spkey_p.h"
+#include "spkey.h"
 
 spkeyboard kb_mkey;
 bool exit_requested=false;
@@ -28,7 +29,6 @@ bool clear_kbd=0;
 extern bool zxbox_menu(void);
 
 /* DUMMIES ... to clean */
-unsigned int scrmul=0;
 int privatemap;
 int use_shm = 0;
 int small_screen,pause_on_iconify;

apps/plugins/zxbox/zxbox_keyb.c

@@ -1,4 +1,5 @@
 #include "zxconfig.h"
+#include "zxbox_keyb.h"
 
 //#define ZX_WRITE_OUT_TEXT
 

apps/plugins/zxbox/zxvid_com.h

@@ -7,6 +7,7 @@
 #endif
 
 #include "spscr_p.h"
+#include "spscr.h"
 #include "spmain.h"
 #include "spperif.h"