--- src/buffer.c	2023-12-15 07:29:19.000000000 +0800
+++ src/buffer.c	2023-12-22 19:07:01.000000000 +0800
@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include <string.h>
 #include "ocl.h"