specified as 0, it does a strlen on the data. This was ok for DB
1.x, but isn't for DB 2.x.
+1.59
+ Updated the license section.
+
+ Berkeley DB 2.4.10 disallows zero length keys. Tests 32 & 42 in
+ db-btree.t and test 27 in db-hash.t failed because of this change.
+ Those tests have been zapped.
+
+ Added dbinfo to the distribution.
+
+1.60
+ Changed the test to check for full tied array support
+
+1.61 19th November 1998
+
+ Added a note to README about how to build Berkeley DB 2.x when
+ using HP-UX.
+ Minor modifications to get the module to build with DB 2.5.x
+ Fixed a typo in the definition of O_RDONLY, courtesy of Mark Kettenis.
+
+1.62 30th November 1998
+
+ Added hints/dynixptx.pl.
+ Fixed typemap -- 1.61 used PL_na instead of na
+
+1.63 19th December 1998
+
+ * Fix to allow DB 2.6.x to build with DB_File
+ * Documentation updated to use push,pop etc in the RECNO example &
+ to include the find_dup & del_dup methods.
+
+1.64 21st February 1999
+
+ * Tidied the 1.x to 2.x flag mapping code.
+ * Added a patch from Mark Kettenis <kettenis@wins.uva.nl> to fix a flag
+ mapping problem with O_RDONLY on the Hurd
+ * Updated the message that db-recno.t prints when tests 51, 53 or 55 fail.
+
+1.65 6th March 1999
+
+ * Fixed a bug in the recno PUSH logic.
+ * The BOOT version check now needs 2.3.4 when using Berkeley DB version 2
+
+1.66 15th March 1999
+
+ * Added DBM Filter code
+
+1.67 6th June 1999
+
+ * Added DBM Filter documentation to DB_File.pm
+
+ * Fixed DBM Filter code to work with 5.004
+
+ * A few instances of newSVpvn were used in 1.66. This isn't available in
+ Perl 5.004_04 or earlier. Replaced with newSVpv.
+
+1.68 22nd July 1999
+
+ * Merged changes from 5.005_58
+
+ * Fixed a bug in R_IBEFORE & R_IAFTER procesing in Berkeley DB
+ 2 databases.
+
+ * Added some of the examples in the POD into the test harness.
+
+1.69 3rd August 1999
+
+ * fixed a bug in push -- DB_APPEND wasn't working properly.
+
+ * Fixed the R_SETCURSOR bug introduced in 1.68
+
+ * Added a new Perl variable $DB_File::db_ver
+
+1.70 4th August 1999
+
+ * Initialise $DB_File::db_ver and $DB_File::db_version with
+ GV_ADD|GV_ADDMULT -- bug spotted by Nick Ing-Simmons.
+
+ * Added a BOOT check to test for equivalent versions of db.h &
+ libdb.a/so.
+
+1.71 7th September 1999
+
+ * Fixed a bug that prevented 1.70 from compiling under win32
+
+ * Updated to support Berkeley DB 3.x
+
+ * Updated dbinfo for Berkeley DB 3.x file formats.
+
+1.72 16th January 2000
+
+ * Added hints/sco.pl
+
+ * The module will now use XSLoader when it is available. When it
+ isn't it will use DynaLoader.
+
+ * The locking section in DB_File.pm has been discredited. Many thanks
+ to David Harris for spotting the underlying problem, contributing
+ the updates to the documentation and writing DB_File::Lock (available
+ on CPAN).
+
+1.73 31st May 2000
+
+ * Added support in version.c for building with threaded Perl.
+
+ * Berkeley DB 3.1 has reenabled support for null keys. The test
+ harness has been updated to reflect this.
+
+1.74 10th December 2000
+
+ * A "close" call in DB_File.xs needed parenthesised to stop win32 from
+ thinking it was one of its macros.
+
+ * Updated dbinfo to support Berkeley DB 3.1 file format changes.
+
+ * DB_File.pm & the test hasness now use the warnings pragma (when
+ available).
+
+ * Included Perl core patch 7703 -- size argument for hash_cb is different
+ for Berkeley DB 3.x
+
+ * Included Perl core patch 7801 -- Give __getBerkeleyDBInfo the ANSI C
+ treatment.
+
+ * @a = () produced the warning 'Argument "" isn't numeric in entersub'
+ This has been fixed. Thanks to Edward Avis for spotting this bug.
+
+ * Added note about building under Linux. Included patches.
+
+ * Included Perl core patch 8068 -- fix for bug 20001013.009
+ When run with warnings enabled "$hash{XX} = undef " produced an
+ "Uninitialized value" warning. This has been fixed.
+
+1.75 17th December 2000
+
+ * Fixed perl core patch 7703
+
+ * Added suppport to allow DB_File to be built with Berkeley DB 3.2 --
+ btree_compare, btree_prefix and hash_cb needed to be changed.
+
+ * Updated dbinfo to support Berkeley DB 3.2 file format changes.
+
+
+1.76 15th January 2001
+
+ * Added instructions for using LD_PRELOAD to get Berkeley DB 2.x to work
+ with DB_File on Linux. Thanks to Norbert Bollow for sending details of
+ this approach.
+
+
+1.77 26th April 2001
+
+ * AIX is reported to need -lpthreads, so Makefile.PL now checks for AIX and
+ adds it to the link options.
+
+ * Minor documentation updates.
+
+ * Merged Core patch 9176
+
+ * Added a patch from Edward Avis that adds support for splice with
+ recno databases.
+
+ * Modified Makefile.PL to only enable the warnings pragma if using perl
+ 5.6.1 or better.
+
+1.78 30th July 2001
+
+ * the test in Makefile.PL for AIX used -plthreads. Should have been
+ -lpthreads
+
+ * merged Core patches
+ 10372, 10335, 10372, 10534, 10549, 10643, 11051, 11194, 11432
+
+ * added documentation patch regarding duplicate keys from Andrew Johnson
+