/* Support signed or unsigned plain-char */
-#if '\0'-1 > 0
+#if '\xff' > 0
#define CHAR_MIN 0
#define CHAR_MAX 255
#else
#define PIPE_BUF 4096
#define FILESIZEBITS 64
#define NAME_MAX 255
-#define SYMLINK_MAX 255
#define PATH_MAX 4096
#define NGROUPS_MAX 32
#define ARG_MAX 131072