--- /dev/null
+#define BUFSIZ 1024
+
+#define FILENAME_MAX 4095
+#define FOPEN_MAX 1000
+#define TMP_MAX 10000
+
+#define L_cuserid 20
+#define L_tmpnam 20
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+#define L_ctermid 20
+#endif
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+#define P_tmpdir "/tmp"
+#endif