-void *_Mem_Alloc(mempool_t *pool, int size, char *filename, int fileline);
-void _Mem_Free(void *data, char *filename, int fileline);
-mempool_t *_Mem_AllocPool(char *name, char *filename, int fileline);
-void _Mem_FreePool(mempool_t **pool, char *filename, int fileline);
-void _Mem_EmptyPool(mempool_t *pool, char *filename, int fileline);
-void _Mem_CheckSentinels(void *data, char *filename, int fileline);
-void _Mem_CheckSentinelsGlobal(char *filename, int fileline);
+void *_Mem_Alloc(mempool_t *pool, int size, const char *filename, int fileline);
+void _Mem_Free(void *data, const char *filename, int fileline);
+mempool_t *_Mem_AllocPool(const char *name, const char *filename, int fileline);
+void _Mem_FreePool(mempool_t **pool, const char *filename, int fileline);
+void _Mem_EmptyPool(mempool_t *pool, const char *filename, int fileline);
+void _Mem_CheckSentinels(void *data, const char *filename, int fileline);
+void _Mem_CheckSentinelsGlobal(const char *filename, int fileline);