Avoid function declarator with no prototype errors

This is for SDCC 4.4.0 at least.

1 files changed, 4 insertions, 4 deletions

diff --git a/game/src/main.c b/game/src/main.c
index c95fcc8..577fd5c 100644
--- a/game/src/main.c
+++ b/game/src/main.c
@@ -12,7 +12,7 @@
 // generated
 #include "tiles.h"
 
-void draw_menu()
+void draw_menu(void)
 {
     uint8_t i;
 
@@ -39,7 +39,7 @@ void draw_menu()
     ubox_enable_screen();
 }
 
-void draw_end_game()
+void draw_end_game(void)
 {
     ubox_disable_screen();
 
@@ -63,7 +63,7 @@ void draw_end_game()
     }
 }
 
-void draw_game_over()
+void draw_game_over(void)
 {
     ubox_disable_screen();
 
@@ -78,7 +78,7 @@ void draw_game_over()
     ubox_wait_for(128);
 }
 
-void main()
+void main(void)
 {
     //  PAL: 50/2 = 25 FPS
     // NTSC: 60/2 = 30 FPS