=head2 Threaded Perl on Tru64
-If you want to use threads, you should primarily use the new Perl
+If you want to use threads, you should primarily use the Perl
5.8.0 threads model by running Configure with -Duseithreads.
-The old Perl 5.005 threads is obsolete, unmaintained, and its use is
-discouraged. If you really want it, run Configure with the
--Dusethreads -Duse5005threads options as described in INSTALL.
-
-Either thread model is going to work only in Tru64 4.0 and newer
-releases, older operating releases like 3.2 aren't probably going
-to work properly with threads.
+Perl threading is going to work only in Tru64 4.0 and newer releases,
+older operating releases like 3.2 aren't probably going to work
+properly with threads.
=head2 Long Doubles on Tru64
has not yet been patched, you'll get a warning from Configure when
selecting long doubles.
+=head2 db-hash.t failing on Tru64
+
+The Berkeley DB 1.85 coming with the Tru64 is unfortunately buggy.
+In general in Tru64 V4.* it seemed to be more stable, but in V5.*
+something broke (even though the DB stayed at release 1.85) and
+the DB_File extension test db-hash.t may fail by dumping core after
+the subtest 21. There really is no good cure as of Tru64 V5.1A expect
+installing a newer Berkeley DB and supplying the right directories for
+-Dlocincpth=/some/include and -Dloclibpth=/some/lib when running Configure.
+
+You can also work around the problem by disabling the DB_File by
+specifying -Ui_db to Configure, and then using the BerkeleyFile module
+from CPAN instead of DB_File. The BerkeleyFile works with Berkeley DB
+versions 2.* or greater.
+
+The Berkeley DB 4.0.14 has been tested with Tru64 V5.1A and found
+to work. The latest Berkeley DB can be found from F<http://www.sleepycat.com>.
+
=head2 64-bit Perl on Tru64
In Tru64 Perl's integers are automatically 64-bit wide, there is
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