Makefile.mingw corrections and made the code pass much stricter checks (now mandated by Makefile.mignw) to ensure GCC 14 readiness.

src/device/hwm.c

@@ -31,7 +31,7 @@
 hwm_values_t hwm_values;
 
 uint16_t
-hwm_get_vcore()
+hwm_get_vcore(void)
 {
     /* Determine Vcore for the active CPU. */
     return cpu_s->voltage;

src/device/keyboard_xt.c

@@ -367,7 +367,7 @@ kbd_log(const char *fmt, ...)
 #endif
 
 static uint8_t
-get_fdd_switch_settings()
+get_fdd_switch_settings(void)
 {
 
     int i, fdd_count = 0;
@@ -384,7 +384,7 @@ get_fdd_switch_settings()
 }
 
 static uint8_t
-get_videomode_switch_settings()
+get_videomode_switch_settings(void)
 {
 
     if (video_is_mda())

src/device/mouse.c

@@ -87,7 +87,7 @@ static mouse_t mouse_devices[] = {
 static const device_t *mouse_curr;
 static void           *mouse_priv;
 static int             mouse_nbut;
-static int (*mouse_dev_poll)();
+static int (*mouse_dev_poll)(int x, int y, int z, int b, void *priv);
 
 #ifdef ENABLE_MOUSE_LOG
 int mouse_do_log = ENABLE_MOUSE_LOG;