--- /dev/null
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+#define PIPE_BUF 4096
+#define PAGESIZE 4096
+#define PAGE_SIZE PAGESIZE
+#define FILESIZEBITS 64
+#define NAME_MAX 255
+#define SYMLINK_MAX 255
+#define PATH_MAX 4096
+#define NZERO 20
+#define NGROUPS_MAX 32
+#define ARG_MAX 131072
+#define IOV_MAX 1024
+#define SYMLOOP_MAX 40
+#define WORD_BIT 32
+#define LONG_BIT 32
+#endif
+
+#define SHRT_MIN (-1-0x7fff)
+#define SHRT_MAX 0x7fff
+#define USHRT_MAX 0xffff
+
+#define INT_MIN (-1-0x7fffffff)
+#define INT_MAX 0x7fffffff
+#define UINT_MAX 0xffffffff
+
+#define LONG_MIN (-1-0x7fffffffL)
+#define LONG_MAX 0x7fffffffL
+#define ULONG_MAX 0xffffffffL
+
+#define LLONG_MIN (-1-0x7fffffffffffffffLL)
+#define LLONG_MAX 0x7fffffffffffffffLL
+#define ULLONG_MAX 0xffffffffffffffffULL