IMPORTANT:

* The 'xdesktop' version of Orca 3.x is NOT for GNOME 3.x.

* The 'xdesktop' version of Orca 3.x IS for GNOME 2.x (and other
  environments -- as long as those environments are NOT GNOME 3.x).

* If you are using GNOME 3.x, you should use the version indicated
  by 'LATEST-IS'.

* If you choose to ignore the above guidance, you are on your own.

* Seriously.

* You have been warned. :-)