Log Message:
Update databases/libdbi to 0.9.0.

Bugfixes

- libdbi now supports using custom driver functions correctly
  (none of the drivers had implemented this feature before
  libdbi-drivers 0.9.0, so this was not really a problem).

- a variety of other bug fixes too numerous to list here, see
  ChangeLog

Improvements

- libdbi now supports several independent "instances" per
  process. This makes the library safe to use in programs that
  dlopen() plugins at runtime which in turn are linked against
  libdbi. The new function dbi_initialize_r() creates a handle
  which the functions dbi_shutdown_r(), dbi_set_verbosity_r(),
  dbi_driver_list_r(), dbi_driver_open_r(), and dbi_conn_new_r()
  use to operate on a particular instance. A new function
  dbi_driver_get_instance() helps to determine the instance at
  runtime.
  The old interface (with just one instance per process which is
  managed internally) is still around but deprecated. See the file
  UPGRADING for detailed instructions.

- libdbi now provides functions for managing transactions and
  savepoints

- libdbi now provides a hint to drivers indicating the current
  position in a result set. This allows drivers to implement
  additional optimizations

- the libtool library versioning numbers were now set
  appropriately (they had fallen out of maintenance somehow in
  the past), and starting with this release the release number
  will match the libtool numbering scheme. libtool manages shared
  objects in a way to allow the loader to detect whether an
  application was linked against a compatible version of
  a library. This will avoid runtime errors in future releases
  if backwards-incompatible changes are necessary.

- pgk-config (http://pkg-config.freedesktop.org/wiki/) is now
  supported

- if CFLAGS is set in the environment, it is now used
  appropriately in ./configure