php5 port and dba_open()

[AstroDrabb]

Hey group,

I just setup apache2, mysql5 and php5.  However, I get an error when I
make a call
to dba_open().

Fatal error: Call to undefined function dba_open() in /...

Looking at the output of a call to phpinfo() I see this compile option:
--enable-dba

I looked around for any loadable modules, but did not find any
modules.  Is this a bug
in the php5 build or am I missing something?

Thanks,

Jim