Quoth David Drum: > I have been using nm to poke around and believe I know what is going on, > even if I don't know how to fix it: > > david@Cynosure ~ > $ nm -o lib/libsgscreen.a FlightGear/src/GUI/gui_funcs.o | egrep >'trTileSize|trImageSize|trTileBuffer' > lib/libsgscreen.a:tr.o:00001564 S _Z10trTileSizeP6_TRctxiii.eh > lib/libsgscreen.a:tr.o:0000158c S _Z11trImageSizeP6_TRctxii.eh > lib/libsgscreen.a:tr.o:000001d4 T __Z10trTileSizeP6_TRctxiii > FlightGear/src/GUI/gui_funcs.o: U __Z10trTileSizeP6_TRctxlll > lib/libsgscreen.a:tr.o:000003c8 T __Z11trImageSizeP6_TRctxii > FlightGear/src/GUI/gui_funcs.o: U __Z11trImageSizeP6_TRctxll > lib/libsgscreen.a:tr.o:0000036c T __Z12trTileBufferP6_TRctxjjPv > FlightGear/src/GUI/gui_funcs.o: U __Z12trTileBufferP6_TRctxmmPv > > If you look closely at the "T" lines and the "U" lines, you will see that > the symbol names do not match! No wonder the final link fails. I guess > I need some way to get the compiler to generate the same symbol names.
I have just solved this problem using the brute-force method: # get rid of the current object file david@Cynosure ~/FlightGear/src/GUI $ rm gui_funcs.o # remake the object file david@Cynosure ~/FlightGear/src/GUI $ make source='gui_funcs.cxx' object='gui_funcs.o' libtool=no \ depfile='.deps/gui_funcs.Po' tmpdepfile='.deps/gui_funcs.TPo' \ depmode=gcc3 /bin/sh ../../depcomp \ g++ -DHAVE_CONFIG_H -I. -I. -I../../src/Include -I../.. -I../../src -I/Users/david/include -I/usr/X11R6/include -g -O2 -D_REENTRANT -c -o gui_funcs.o `test -f 'gui_funcs.cxx' || echo './'`gui_funcs.cxx rm -f libGUI.a ar cru libGUI.a new_gui.o dialog.o menubar.o gui.o gui_funcs.o gui_local.o mouse.o net_dlg.o preset_dlg.o prop_picker.o sgVec3Slider.o trackball.o ranlib libGUI.a # verify that the wrong symbol names are still being generated david@Cynosure ~/FlightGear/src/GUI $ egrep -l '__Z10trTileSizeP6_TRctxlll|__Z11trImageSizeP6_TRctxll|__Z12trTileBufferP6_TRctxmmPv' gui_funcs.o gui_funcs.o # change to correct symbol names david@Cynosure ~/FlightGear/src/GUI $ perl -p -i -e 's+__Z10trTileSizeP6_TRctxlll+__Z10trTileSizeP6_TRctxiii+g;s+__Z11trImageSizeP6_TRctxll+__Z11trImageSizeP6_TRctxii+g;s+__Z12trTileBufferP6_TRctxmmPv+__Z12trTileBufferP6_TRctxjjPv+g;' gui_funcs.o # remake david@Cynosure ~/FlightGear/src/GUI $ rm libGUI.a david@Cynosure ~/FlightGear/src/GUI $ make rm -f libGUI.a ar cru libGUI.a new_gui.o dialog.o menubar.o gui.o gui_funcs.o gui_local.o mouse.o net_dlg.o preset_dlg.o prop_picker.o sgVec3Slider.o trackball.o ranlib libGUI.a # see if the final link likes the new library david@Cynosure ~/FlightGear/src/GUI $ cd ../Main david@Cynosure ~/FlightGear/src/Main $ make g++ -DPKGLIBDIR=\"/Users/david/lib/FlightGear\" -g -O2 -D_REENTRANT -L/Users/david/lib -L/usr/X11R6/lib -o fgfs main.o fg_commands.o fg_init.o fg_io.o fg_props.o fgfs.o globals.o logger.o options.o splash.o util.o viewer.o viewmgr.o location.o ../../src/Aircraft/libAircraft.a ../../src/ATC/libATC.a ../../src/Autopilot/libAutopilot.a ../../src/Cockpit/libCockpit.a ../../src/Cockpit/built_in/libBuilt_in.a ../../src/Controls/libControls.a ../../src/FDM/libFlight.a ../../src/FDM/Balloon/libBalloon.a ../../src/FDM/ExternalNet/libExternalNet.a ../../src/FDM/JSBSim/libJSBSim.a ../../src/FDM/YASim/libYASim.a ../../src/FDM/JSBSim/filtersjb/libfiltersjb.a ../../src/FDM/LaRCsim/libLaRCsim.a ../../src/FDM/UIUCModel/libUIUCModel.a ../../src/GUI/libGUI.a ../../src/Input/libInput.a ../../src/Instrumentation/libInstrumentation.a ../../src/Model/libModel.a ../../src/Navaids/libNavaids.a ../../src/Scenery/libScenery.a ../../src/Scripting/libScripting.a ../../src/Sound/libSound.a ../../src/Airports/libAirports.a ../../src/Network/libNetwork.a ../../src/NetworkOLK/libNetworkOLK.a ../../src/Objects/libObjects.a ../../src/Systems/libSystems.a ../../src/Time/libTime.a ../../src/Environment/libEnvironment.a -lsgroute -lsgsky -lsgephem -lsgtiming -lsgio -lsgscreen -lsgmath -lsgbucket -lsgdebug -lsgmagvar -lsgmisc -lsgxml -lsgserial -lsgthreads -lplibpu -lplibfnt -lplibjs -lplibnet -lplibssg -lplibsg -lplibul -lplibpsl -lmk4 -lz -lpthread -lm -framework GLUT -framework OpenGL -framework Carbon -lobjc -lplibsl -lplibsm -framework IOKit -framework CoreFoundation -lm ld: warning table of contents of library: ../../src/FDM/JSBSim/libJSBSim.a not sorted slower link editing will result (use the ranlib(1) -s option) ld: Undefined symbols: ssgVtxTable::ssgVtxTable[in-charge](unsigned, ssgVertexArray*, ssgNormalArray*, ssgTexCoordArray*, ssgColourArray*) make: *** [fgfs] Error 1 Woo-hoo! An ugly method, but I'll take it. Now for the last error... Regards, David K. Drum [EMAIL PROTECTED] _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
