wesnoth/website/forum.wesnoth.org/phpbb-3.0.4
..
README

In this directory are located several patches applied over the
vanilla phpBB distribution for the wesnoth.org forums.

Some patches may require additional fiddling with the phpBB
config or database tables. Please read every patch's
accompanying README file for additional installation steps.

In general, to apply a patch, use:

  patch -p1 < patchfile.diff

... on the phpBB root directory (e.g. /public/forum).