-if USE_SDL
-GFX_CODE = fg_os_sdl.cxx fg_os.hxx
-else
-if USE_OSGVIEWER
-GFX_CODE = fg_os_osgviewer.cxx fg_os.hxx
-else
-GFX_CODE = fg_os.cxx fg_os.hxx
-endif
-endif
-
-if USE_OSGDEBUG
-OSG_LIBS = -losgViewerd -losgGAd -losgTextd -losgFXd -losgUtild -losgDBd -losgSimd -losgd -lOpenThreadsd
-else
-OSG_LIBS = -losgViewer -losgGA -losgText -losgFX -losgUtil -losgDB -losgSim -losg -lOpenThreads
-endif