(ITS#3837) configure --disable-bdb not working as expected

[allan@rahab.wycliffe.ca]

Full_Name: Allan Lyons
Version: 2.3.4
OS: OpenBSD 3.7
URL: 
Submission from: (NULL) (207.54.125.136)


When trying to run ./configure --disable-bdb the configure script still tests
for BDB and dies with an error if a current BDB really isn't there.

checking for Berkeley DB thread support... no
checking Berkeley DB version for BDB backend... no
configure: error: BDB/HDB: BerkeleyDB version incompatible

I would expect that configure --disable-bdb  would skip that check since it is
not supposed to use it anyways.  I suppose that normally one would want to use
BDB, but the configuration option should still work.