/* Support signed or unsigned plain-char */
-#ifdef __CHAR_UNSIGNED__
+#if '\0'-1 > 0
#define CHAR_MIN 0
#define CHAR_MAX 255
#else
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define PIPE_BUF 4096
+#ifdef PAGE_SIZE
#define PAGESIZE PAGE_SIZE
+#endif
#define FILESIZEBITS 64
#define NAME_MAX 255
#define SYMLINK_MAX 255
#define NL_ARGMAX 9
#define NL_LANGMAX 32
#define NL_MSGMAX 32767
-#define NL_NMAX (MB_LEN_MAX*4)
#define NL_SETMAX 255
#define NL_TEXTMAX 2048
#endif
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
+ || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
+
+#define NL_NMAX 16
+
+#endif
+
/* POSIX/SUS requirements follow. These numbers come directly
* from SUS and have nothing to do with the host system. */