-extern void SysDebug(char *fmt, ...); //!< Now implemented in main.c
-extern void SysDebugV(char *fmt, ...);
-extern Uint SysLoadBin(char *path, Uint *entry);
+extern void SysDebug(const char *fmt, ...); //!< Now implemented in main.c
+extern void SysDebugV(const char *fmt, ...);
+extern Uint SysLoadBin(const char *path, Uint *entry);