+ * Revision 1.5 2001/01/20 12:06:01 mdw
+ * Define flags with macros, to ensure unsignedness.
+ *
+ * Revision 1.4 2000/06/17 10:38:14 mdw
+ * Add support for variable buffer sizes.
+ *
+ * Revision 1.3 1999/12/10 23:42:04 mdw
+ * Change header file guard names.
+ *