-/* The mode flags used in calls to _PDCLIB_open(). */
-enum _PDCLIB_iomode_e
-{
- _PDCLIB_io_read = 1,
- _PDCLIB_io_write = 2,
- _PDCLIB_io_append = 4,
- _PDCLIB_io_create = 8,
- _PDCLIB_io_truncate = 16,
-};
+/* The default size for file buffers. Must be at least 256. */
+#define _PDCLIB_BUFSIZ 1024
+
+/* The minimum number of files the implementation can open simultaneously. Must
+ be at least 8. Depends largely on how the bookkeeping is done by fopen() /
+ freopen() / fclose().
+*/
+#define _PDCLIB_FOPEN_MAX 8
+
+/* Length of the longest filename the implementation guarantees to support. */
+#define _PDCLIB_FILENAME_MAX 128
+
+/* Buffer size for tmpnam(). */
+#define _PDCLIB_L_tmpnam 100
+
+/* Number of distinct file names that can be generated by tmpnam(). */
+#define _PDCLIB_TMP_MAX 50
+
+/* The number of times fflush() tries to write a file buffer before giving up
+ if no characters can be written.
+*/
+#define _PDCLIB_FLUSH_RETRIES 3
+/* This macro is executed after each try to write characters that results in
+ no characters being written. You can define this to be empty, wait a short
+ period of time, or whatever suits your environment.
+*/
+#define _PDCLIB_FLUSH_RETRY_PREP
+