-You *must* have the plib version 1.1.x or later installed on your
-system to build the FGFS simulator!" Special note: Flight Gear is no
-longer compatible with the 1.0.x versions of plib.
+[This file is mirrored in both the FlightGear and SimGear packages.]
+
+You *must* have plib version 1.6.0 or later installed on your system
+to build FlightGear!" Flight Gear is no longer compatible with the
+earlier versions of the library.