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

src/video/vid_f82c425.c

@@ -96,7 +96,7 @@ f82c425_display_set(uint8_t internal)
 }
 
 uint8_t
-f82c425_display_get()
+f82c425_display_get(void)
 {
     return (uint8_t) st_display_internal;
 }

src/video/vid_genius.c

@@ -783,7 +783,7 @@ genius_close(void *p)
 }
 
 static int
-genius_available()
+genius_available(void)
 {
     return rom_present(BIOS_ROM_PATH);
 }

src/video/vid_im1024.c

@@ -1034,7 +1034,7 @@ im1024_close(void *priv)
 }
 
 static int
-im1024_available()
+im1024_available(void)
 {
     return rom_present(BIOS_ROM_PATH);
 }

src/video/vid_ogc.c

@@ -535,7 +535,7 @@ ogc_speed_changed(void *priv)
 }
 
 void
-ogc_mdaattr_rebuild()
+ogc_mdaattr_rebuild(void)
 {
     int c;
 

src/video/vid_svga.c

@@ -74,9 +74,8 @@ svga_log(const char *fmt, ...)
 #    define svga_log(fmt, ...)
 #endif
 
-svga_t
-    *
-    svga_get_pri()
+svga_t *
+svga_get_pri(void)
 {
     return svga_pri;
 }

src/video/vid_voodoo.c

@@ -876,7 +876,7 @@ voodoo_force_blit(void *p)
 }
 
 void *
-voodoo_card_init()
+voodoo_card_init(void)
 {
     int       c;
     voodoo_t *voodoo = malloc(sizeof(voodoo_t));
@@ -1152,7 +1152,7 @@ voodoo_2d3d_card_init(int type)
 }
 
 void *
-voodoo_init()
+voodoo_init(const device_t *info)
 {
     voodoo_set_t *voodoo_set = malloc(sizeof(voodoo_set_t));
     uint32_t      tmuConfig  = 1;