GCC compiler error under Linux

[RPG]

Code:

g++ -O3 -fomit-frame-pointer -I/usr/X11R6/include -I../enet/include -I../src `sdl-config --cflags`  -o ac_client client.o clientgame.o clients2c.o command.o console.o docs.o editing.o entities.o log.o main.o menus.o packetqueue.o physics.o protocol.o rendercubes.o rendergl.o renderhud.o rendermodel.o renderparticles.o rendertext.o rndmap.o scoreboard.o server.o serverbrowser.o serverms.o shadow.o sound.o texture.o tools.o water.o weapon.o wizard.o world.o worldio.o worldlight.o worldocull.o worldrender.o bot/bot.o bot/botmanager.o bot/bot_ai.o bot/bot_util.o bot/bot_waypoint.o bot/ac_bot.o bot/ac_bot_ai.o  -L/usr/X11R6/lib -L../enet/.libs -lenet `sdl-config --libs` -lSDL_image -lz -lGL -lopenal -lvorbisfile
renderparticles.o: In function `addshotline(playerent*, vec const&, vec const&, int)':
renderparticles.cpp:(.text+0x4897): undefined reference to `hudgunTag(playerent*, char const*)'
collect2: ld returned 1 exit status
make: *** [client] Ошибка 1

Ubuntu 32 bit