g++  -g -O2  -rdynamic -Wl,-z,defs -o warzone2100 action.o advvis.o ai.o aiexperience.o astar.o atmos.o aud.o baseobject.o bridge.o bucket3d.o cheat.o clparse.o cluster.o cmddroid.o combat.o component.o configuration.o console.o data.o design.o difficulty.o display3d.o display.o drive.o droid.o e3demo.o edit3d.o effects.o environ.o feature.o force-linker.o formation.o fpath.o frontend.o function.o game.o gateway.o geometry.o group.o hci.o ingameop.o init.o intdisplay.o intelmap.o intimage.o intorder.o keybind.o keyedit.o keymap.o level_lexer.lex.o levels.o lighting.o loadsave.o loop.o main.o map.o mapdisplay.o mapgrid.o mechanics.o message.o message_lexer.lex.o message_parser.tab.o miscimd.o mission.o move.o multibot.o multigifts.o multiint.o multijoin.o multilimit.o multimenu.o multiopt.o multiplay.o multistat.o multistruct.o multisync.o objects.o objmem.o oprint.o order.o parsetest.o power.o projectile.o radar.o raycast.o research.o scores.o scriptai.o scriptcb.o scriptextern.o scriptfuncs.o scriptobj.o scripttabs.o scriptvals.o scriptvals_lexer.lex.o scriptvals_parser.tab.o selection.o seqdisp.o stats.o structure.o target.o text.o texture.o transporter.o version.o visibility.o warcam.o warzoneconfig.o wrappers.o ../lib/widget/libwidget.a ../lib/sequence/libsequence.a ../lib/sound/libsound.a ../lib/script/libscript.a ../lib/netplay/libnetplay.a ../lib/ivis_opengl/libivis_opengl.a ../lib/ivis_common/libivis_common.a ../lib/gamelib/libgamelib.a ../lib/framework/libframework.a ../lib/exceptionhandler/libexceptionhandler.a  -lSDL   -lSDL_net -lphysfs -lpng12   -lvorbisfile -lvorbis -lm -logg   -ltheora -logg   -lopenal   -lGLC -lGL -lGLU -lpopt  
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function lost_scrap:scrap.c:319: error: undefined reference to 'XGetSelectionOwner'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function convert_format:scrap.c:100: error: undefined reference to 'XInternAtom'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function get_scrap:scrap.c:448: error: undefined reference to 'XGetSelectionOwner'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function get_scrap:scrap.c:480: error: undefined reference to 'XGetWindowProperty'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function get_scrap:scrap.c:493: error: undefined reference to 'XFree'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function get_scrap:scrap.c:462: error: undefined reference to 'XInternAtom'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function get_scrap:scrap.c:463: error: undefined reference to 'XConvertSelection'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function put_scrap:scrap.c:345: error: undefined reference to 'XChangeProperty'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function put_scrap:scrap.c:349: error: undefined reference to 'XSetSelectionOwner'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function clipboard_filter:scrap.c:608: error: undefined reference to 'XGetWindowProperty'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function clipboard_filter:scrap.c:625: error: undefined reference to 'XFree'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function clipboard_filter:scrap.c:627: error: undefined reference to 'XSendEvent'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function clipboard_filter:scrap.c:628: error: undefined reference to 'XSync'
/usr/bin/ld: ../lib/widget/libwidget.a(scrap.o): in function clipboard_filter:scrap.c:620: error: undefined reference to 'XChangeProperty'
collect2: ld returned 1 exit status
make[4]: *** [warzone2100] Error 1