environment_mgr.cxx environment_mgr.hxx \
environment_ctrl.cxx environment_ctrl.hxx \
fgmetar.cxx fgmetar.hxx fgclouds.cxx fgclouds.hxx \
+ fgwind.cxx fgwind.hxx \
atmosphere.cxx atmosphere.hxx \
precipitation_mgr.cxx precipitation_mgr.hxx \
ridge_lift.cxx ridge_lift.hxx