--- src/pipe.c.orig 2000-08-06 04:27:10.000000000 +0900 +++ src/pipe.c 2020-11-21 15:44:20.000000000 +0900 @@ -32,6 +32,8 @@ #include <stdio.h> +#include <stdlib.h> +#include <string.h> #include <unistd.h> #include <sys/types.h> /* #include <bstring.h> */