Portable (POSIX) subset of the X-Ray unofficial toolset used for modding the
S.T.A.L.K.E.R. game series by GSC Game World.  Currently includes standalone
converter utility which is useful for casual gamers to unpack game resources
in order to adjust various game parameters.

Usage examples, the first for Russian release version of Shadow of Chernobyl
and the second for Clear Sky and Call of Pripyat:

  $ xr_converter -unpack /path/to/gamedata.db0 -2947ru -dir ./put_it_here
  $ xr_converter -unpack /path/to/resources.db0 -xdb -dir ./put_it_here