--- /dev/null
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define PAGE_SIZE 4096
+#define LONG_BIT 32
+#endif
+
+#define LONG_MAX 0x7fffffffL
+#define LLONG_MAX 0x7fffffffffffffffLL