...

src/arch/arch.h

@@ -15,7 +15,7 @@ typedef struct
     size_t num_regions;
 } memory_map_t;
 
-void panic();
-void put_char(char character);
+extern memory_map_t memory_map;
 
-extern memory_map_t memory_map;
+void panic();
+void put_char(char character);