(GX) Buildfix/warning fix

libretro_version_1.c

@@ -675,6 +675,8 @@ void retro_init_libretro_cbs(void *data)
    if (!cbs)
       return;
 
+   (void)driver;
+
    pretro_set_video_refresh(video_frame);
    pretro_set_audio_sample(audio_sample);
    pretro_set_audio_sample_batch(audio_sample_batch);

menu/drivers/rgui.c

@@ -355,6 +355,9 @@ static void rgui_render(void)
    const char *core_version = NULL;
    menu_handle_t *menu = menu_driver_resolve();
    runloop_t *runloop = rarch_main_get_ptr();
+   driver_t *driver   = driver_get_ptr();
+
+   (void)driver;
 
    if (!menu)
       return;

retroarch.c

@@ -888,6 +888,8 @@ static void init_cheats(void)
    driver_t *driver = driver_get_ptr();
    bool allow_cheats = true;
 
+   (void)driver;
+
 #ifdef HAVE_NETPLAY
    allow_cheats &= !driver->netplay_data;
 #endif
@@ -904,6 +906,8 @@ static void init_rewind(void)
    void *state = NULL;
    driver_t *driver = driver_get_ptr();
 
+   (void)driver;
+
 #ifdef HAVE_NETPLAY
    if (driver->netplay_data)
       return;

runloop.c

@@ -568,6 +568,8 @@ static int do_state_checks(
 {
    driver_t *driver = driver_get_ptr();
 
+   (void)driver;
+
    if (g_runloop.is_idle)
       return 1;