#
#
# patch "migrate_ancestry.cc"
#  from [565d9351d0553d77e2d5d45ac495aaa46339adfd]
#    to [d24eba186d24fdba6d66cca44fdc455a5af3795c]
#
============================================================
--- migrate_ancestry.cc	565d9351d0553d77e2d5d45ac495aaa46339adfd
+++ migrate_ancestry.cc	d24eba186d24fdba6d66cca44fdc455a5af3795c
@@ -195,7 +195,13 @@ void anc_graph::write_certs()
     for (set<string>::const_iterator i = branches.begin(); i != branches.end(); ++i)
       {
         char buf[constants::epochlen_bytes];
-        keys.get_rng().randomize(reinterpret_cast<Botan::byte *>(buf), constants::epochlen_bytes);
+#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,7,7)
+        keys.get_rng().randomize(reinterpret_cast<Botan::byte *>(buf),
+                                 constants::epochlen_bytes);
+#else
+        Botan::Global_RNG::randomize(reinterpret_cast<Botan::byte *>(buf),
+                                     constants::epochlen_bytes);
+#endif
         epoch_data new_epoch(string(buf, buf + constants::epochlen_bytes),
                              origin::internal);
         L(FL("setting epoch for %s to %s")