Making all in Main
make[2]: Entering directory `/usr/local/src/flightgear/src/Main'
g++ -DPKGLIBDIR=\"/usr/local/FlightGear/share/FlightGear\" -g -O2 -D_REENTRANT  -L/usr/X11R6/lib -L/usr/local/lib -o fgfs  bootstrap.o ../../src/Main/libMain.a ../../src/Aircraft/libAircraft.a ../../src/ATC/libATC.a ../../src/Cockpit/libCockpit.a ../../src/Cockpit/built_in/libBuilt_in.a ../../src/FDM/libFlight.a ../../src/FDM/Balloon/libBalloon.a ../../src/FDM/ExternalNet/libExternalNet.a ../../src/FDM/ExternalPipe/libExternalPipe.a ../../src/FDM/JSBSim/libJSBSim.a ../../src/FDM/JSBSim/initialization/libInit.a ../../src/FDM/JSBSim/models/libModels.a ../../src/FDM/JSBSim/models/flight_control/libFlightControl.a ../../src/FDM/JSBSim/models/atmosphere/libAtmosphere.a ../../src/FDM/JSBSim/models/propulsion/libPropulsion.a ../../src/FDM/JSBSim/input_output/libInputOutput.a ../../src/FDM/JSBSim/math/libMath.a ../../src/FDM/YASim/libYASim.a ../../src/FDM/LaRCsim/libLaRCsim.a ../../src/FDM/UIUCModel/libUIUCModel.a ../../src/FDM/SP/libSPFDM.a ../../src/GUI/libGUI.a ../../src/Autopilot/libAutopilot.a ../../src/Input/libInput.a ../../src/Instrumentation/KLN89/libKLN89.a ../../src/Instrumentation/libInstrumentation.a ../../src/Model/libModel.a ../../src/Network/libNetwork.a ../../src/Navaids/libNavaids.a ../../src/Scenery/libScenery.a ../../src/Scripting/libScripting.a ../../src/Sound/libSound.a ../../src/Airports/libAirports.a ../../src/MultiPlayer/libMultiPlayer.a ../../src/AIModel/libAIModel.a ../../src/Systems/libSystems.a ../../src/Time/libTime.a ../../src/Traffic/libTraffic.a ../../src/Environment/libEnvironment.a -lsgroute -lsgsky -lsgsound -lsgephem -lsgmaterial -lsgtgdb -lsgmodel -lsgtiming -lsgio -lsgscreen -lsgmath -lsgbucket -lsgprops -lsgdebug -lsgmagvar -lsgmisc -lsgnasal -lsgxml -lsgsound -lsgserial -lsgstructure -lsgenvironment -lsgthreads -lpthread  -lplibpuaux -lplibpu -lplibfnt -lplibjs -lplibnet -lplibssgaux -lplibssg -lplibsg -lplibul  -lz -lglut -lGLU -lGL -lXt -lSM -lICE -lXext -lX11 -ldl -lm  -lalut -lopenal -ldl -lm   -lpthread
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgWarpMouse(int, int)':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:264: undefined reference to `SDL_PumpEvents'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:265: undefined reference to `SDL_PeepEvents'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:266: undefined reference to `SDL_WarpMouse'
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgSetMouseCursor(int)':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:372: undefined reference to `SDL_ShowCursor'
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgOSOpenWindow(int, int, int, bool, bool, bool)':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:72: undefined reference to `SDL_Init'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:75: undefined reference to `SDL_Quit'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:77: undefined reference to `SDL_WM_SetCaption'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:79: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:80: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:81: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:86: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:87: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:92: undefined reference to `SDL_SetVideoMode'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:100: undefined reference to `SDL_EnableUNICODE'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:101: undefined reference to `SDL_EnableKeyRepeat'
../../src/Main/libMain.a(fg_os_sdl.o): In function `initCursors':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:407: undefined reference to `SDL_CreateCursor'
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgOSOpenWindow(int, int, int, bool, bool, bool)':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:72: undefined reference to `SDL_Init'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:74: undefined reference to `SDL_GetError'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:92: undefined reference to `SDL_SetVideoMode'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:94: undefined reference to `SDL_GetError'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:85: undefined reference to `SDL_GL_SetAttribute'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:83: undefined reference to `SDL_GL_SetAttribute'
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgOSMainLoop()':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:210: undefined reference to `SDL_PollEvent'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:210: undefined reference to `SDL_PollEvent'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:250: undefined reference to `SDL_GL_SwapBuffers'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:238: undefined reference to `SDL_SetVideoMode'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:240: undefined reference to `SDL_GetError'
../../src/Main/libMain.a(fg_os_sdl.o): In function `fgSetMouseCursor(int)':
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:369: undefined reference to `SDL_ShowCursor'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:382: undefined reference to `SDL_SetCursor'
/usr/local/src/flightgear/src/Main/fg_os_sdl.cxx:382: undefined reference to `SDL_SetCursor'
../../src/GUI/libGUI.a(gui.o): In function `puGetWindowSizeSDL(int*, int*)':
/usr/include/plib/puSDL.h:42: undefined reference to `SDL_GetVideoSurface'
collect2: ld returned 1 exit status
make[2]: *** [fgfs] Error 1
make[2]: Leaving directory `/usr/local/src/flightgear/src/Main'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/