+ * Revision 1.6 2001/02/03 16:05:41 mdw
+ * Now @mp_drop@ checks its argument is non-NULL before attempting to free
+ * it. Note that the macro version @MP_DROP@ doesn't do this.
+ *
+ * Revision 1.5 2000/12/06 20:30:10 mdw
+ * Change secret sharing interface: present the secret at share
+ * construction time.
+ *
+ * Revision 1.4 2000/10/08 12:16:17 mdw
+ * Use @MP_EQ@ instead of @MP_CMP@.
+ *
+ * Revision 1.3 2000/06/24 18:29:05 mdw
+ * Interface change: allow shares to be extracted from a context on demand,
+ * rather than building them all up-front.
+ *