This apache module requires db-4.3 compiled with c++ extensions 
and libmm (a shared memory manager).

To build this apache module, perform the following steps:

> ./configure --with-apxs=/path/to/apxs
--with-db4=/usr/local/BerkeleyDb-4.3 --with-mm=/usr/local
> make
> su -
# make install

Post-installation, modules can use this extension via the functions
documented in $APACHE_INCLUDEDIR/mod_db4_export.h