+ * Revision 1.12 2001/01/20 11:49:37 mdw
+ * Export tuning parameters from header file, for the benefit of other
+ * hashtable implementations. Change the storage of symbol names: store
+ * the name after the allocated symbol block in all cases. This replaces
+ * the previous complicated and slightly wasteful arrangement.
+ *
+ * Revision 1.11 2000/06/17 10:37:39 mdw
+ * Add support for arena management.
+ *
+ * Revision 1.10 1999/12/10 23:42:04 mdw
+ * Change header file guard names.
+ *
+ * Revision 1.9 1999/08/02 16:53:48 mdw
+ * Improve type safety for sym_iter objects.
+ *
+ * Revision 1.8 1999/08/02 14:45:48 mdw
+ * Break low-level hashtable code out from sym.
+ *
+ * Revision 1.7 1999/06/01 09:49:33 mdw
+ * Allow things to be looked up by just their caller-supplied hashes. This
+ * actually needs to be thought through better.
+ *
+ * Revision 1.6 1999/05/26 21:08:31 mdw
+ * Rename symbols in line with newer conventions.
+ *
+ * Revision 1.5 1999/05/13 22:48:37 mdw
+ * Change `-ise' to `-ize' throughout.
+ *
+ * Revision 1.4 1999/05/06 19:51:35 mdw
+ * Reformatted the LGPL notice a little bit.
+ *