Python doesn't detect Berkeley DB 4.8. After updating setup.py, _bsddb
module fails to build due to some changes in Berkeley DB.

I'm attaching patch which seems to fix these problems.
Changes in setup.py were made by me.
Changes in Modules/_bsddb.c were copied from bsddb3-4.8.0 [1].

[1] http://www.jcea.es/programacion/pybsddb.htm

with this patch the following test cases fail. the tests need backports as well. with this patch there's still one test failure, which I do see with db4.7 as well.

will wait for test results on different platforms and then submit to the trunk. the setup.py change should go to the py3k branch as well.

======================================================================
ERROR: test02_DBEnv_dealloc (bsddb.test.test_basics.CrashAndBurn)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_basics.py", line 1038, in test02_DBEnv_dealloc
    self.assertRaises(db.DBInvalidArgError, db.DBEnv, ~db.DB_RPCCLIENT)
AttributeError: 'module' object has no attribute 'DB_RPCCLIENT'

======================================================================
ERROR: test01_distributed_transactions (bsddb.test.test_distributed_transactions.DBTxn_distributed)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 53, in setUp
    return self._create_env(must_open_db=True)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 38, in _create_env
    self.db.set_re_len(db.DB_XIDDATASIZE)
AttributeError: 'module' object has no attribute 'DB_XIDDATASIZE'

======================================================================
ERROR: test01_distributed_transactions (bsddb.test.test_distributed_transactions.DBTxn_distributedSYNC)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 53, in setUp
    return self._create_env(must_open_db=True)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 38, in _create_env
    self.db.set_re_len(db.DB_XIDDATASIZE)
AttributeError: 'module' object has no attribute 'DB_XIDDATASIZE'
======================================================================
ERROR: test01_distributed_transactions (bsddb.test.test_distributed_transactions.DBTxn_distributed_must_open_db)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 53, in setUp
    return self._create_env(must_open_db=True)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 38, in _create_env
    self.db.set_re_len(db.DB_XIDDATASIZE)
AttributeError: 'module' object has no attribute 'DB_XIDDATASIZE'

======================================================================
ERROR: test01_distributed_transactions (bsddb.test.test_distributed_transactions.DBTxn_distributedSYNC_must_open_db)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 53, in setUp
    return self._create_env(must_open_db=True)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_distributed_transactions.py", line 38, in _create_env
    self.db.set_re_len(db.DB_XIDDATASIZE)
AttributeError: 'module' object has no attribute 'DB_XIDDATASIZE'

the remaining test failure is

test_bsddb3
Berkeley DB 4.8.24: (August 14, 2009)
Test path prefix:  /tmp/z-test_bsddb3-25705
Exception in thread reader 0:
Traceback (most recent call last):
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/threading.py", line 532, in __bootstrap_inner
    self.run()
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/threading.py", line 484, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/test/test_thread.py", line 306, in readerThread
    rec = dbutils.DeadlockWrap(c.next, max_retries=10)
  File "/home/packages/python/2.6/python2.6-2.6.5~rc2/Lib/bsddb/dbutils.py", line 68, in DeadlockWrap
    return function(*_args, **_kwargs)
DBLockDeadlockError: (-30994, 'DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock')

checked in after testing on {arm,i486,x86_64,powerpc,sparc,ia64}-linux with no test failures.

fixed in r78974 on the trunk
fixed in r78975 on the py3k branch

I am about to integrate pybsddb 4.8.4, that compiles against BDB 4.8.

Oracle is going to publish a new Berkeley DB lib in a month or less. I have the pybsddb release ready, too.

Doko, bsddb3 is suppose to be "out" of py3k.

jcea: yes, but we want _dbm be able to build with 4.8.x as well.