diff --git a/simgear/CMakeLists.txt b/simgear/CMakeLists.txt
index 3ad734fa..7612bb8d 100644
--- a/simgear/CMakeLists.txt
+++ b/simgear/CMakeLists.txt
@@ -70,8 +70,6 @@ if(SIMGEAR_SHARED)
     endif(LIBSVN_FOUND)
 
     if(NOT SIMGEAR_HEADLESS)
-        list(APPEND sceneSources scene/util/SGCoreOSGDependant.cxx)
-
         add_library(SimGearScene SHARED ${sceneSources})
       # set_property(TARGET SimGearScene PROPERTY FRAMEWORK 1)
       # set_property(TARGET SimGearScene PROPERTY PUBLIC_HEADER "${publicHeaders}")
diff --git a/simgear/scene/util/SGCoreOSGDependant.cxx b/simgear/scene/util/SGCoreOSGDependant.cxx
deleted file mode 100644
index b46064e9..00000000
--- a/simgear/scene/util/SGCoreOSGDependant.cxx
+++ /dev/null
@@ -1,61 +0,0 @@
-
-
-// Copyright (C) 2011  Curtis L Olson <curt@flightgear.org>
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Library General Public
-// License as published by the Free Software Foundation; either
-// version 2 of the License, or (at your option) any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// Library General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-//
-
-#ifdef HAVE_CONFIG_H
-#  include <simgear_config.h>
-#endif
-
-#include <simgear/math/SGMath.hxx>
-
-#include <osg/Math>
-#include <osg/Matrixd>
-
-osg::Matrix SGGeod::makeSimulationFrameRelative() const
-{
-    SGQuatd hlOr = SGQuatd::fromLonLat(*this);
-    return osg::Matrix(toOsg(hlOr));
-}
-
-osg::Matrix SGGeod::makeSimulationFrame() const
-{
-    osg::Matrix result(makeSimulationFrameRelative());
-    SGVec3d coord;
-    SGGeodesy::SGGeodToCart(*this, coord);
-    result.setTrans(toOsg(coord));
-    return result;
-}
-
-osg::Matrix SGGeod::makeZUpFrameRelative() const
-{
-    osg::Matrix result(makeSimulationFrameRelative());
-    // 180 degree rotation around Y axis
-    osg::Quat flip(0.0, 1.0, 0.0, 0.0);
-    result.preMult(osg::Matrix(flip));
-    return result;
-}
-
-osg::Matrix SGGeod::makeZUpFrame() const
-{
-    osg::Matrix result(makeZUpFrameRelative());
-    SGVec3d coord;
-    SGGeodesy::SGGeodToCart(*this, coord);
-    result.setTrans(toOsg(coord));
-    return result;
-}
-