2.6.8:

* Fix the build when using --enable-api-properties, --enable-api-vfuncs, or 
  --enable-api-exceptions when configuring glibmm.
  When using these, the API, and any API generated by gmmproc, will be 
  changed. This allows users of embedded platforms to reduce the code size of *mm 
  libraries and *mm-using applications, at the small cost of losing some rarely-used 
  API. Alternatives exist for that API, as show in the examples.