* [UFO] ... linking  (-ldl  -lm   -lz -lcurl -ljpeg -lpng -lSDL_ttf -lvorbisfile -lvorbis -logg  -L/usr/lib -Wl,-rpath,/usr/lib -lSDL -lpthread)
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x10): In function `S_Music_Stop':
 src/client/cl_sound.c:70: undefined reference to `Mix_HaltMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x1e):src/client/cl_sound.c:71: undefined reference to `Mix_FreeMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xef): In function `S_Music_Start':
 src/client/cl_sound.c:112: undefined reference to `Mix_PlayingMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x100):src/client/cl_sound.c:113: undefined reference to `Mix_FadeOutMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x1dc):src/client/cl_sound.c:127: undefined reference to `Mix_LoadMUS_RW'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x235):src/client/cl_sound.c:132: undefined reference to `Mix_FadeInMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x2af): In function `S_Music_Play_f':
 src/client/cl_sound.c:150: undefined reference to `Mix_PlayingMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x2c0):src/client/cl_sound.c:151: undefined reference to `Mix_FadeOutMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x850): In function `S_LoadSound':
 src/client/cl_sound.c:273: undefined reference to `Mix_LoadWAV_RW'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x8a6):src/client/cl_sound.c:276: undefined reference to `Mix_LoadWAV_RW'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x9c4): In function `S_PlaySoundFromMem':
 src/client/cl_sound.c:318: undefined reference to `Mix_PlayChannelTimed'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xd4f): In function `S_StartSound':
 src/client/cl_sound.c:411: undefined reference to `Mix_VolumeChunk'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xd91):src/client/cl_sound.c:414: undefined reference to `Mix_PlayChannelTimed'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xe53): In function `S_StopAllSounds':
 src/client/cl_sound.c:448: undefined reference to `Mix_HaltChannel'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xf7f): In function `S_Frame':
 src/client/cl_sound.c:514: undefined reference to `Mix_VolumeMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0xf9c):src/client/cl_sound.c:518: undefined reference to `Mix_PlayingMusic'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x10ca): In function `SND_Init':
 src/client/cl_sound.c:549: undefined reference to `Mix_OpenAudio'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x1105):src/client/cl_sound.c:554: undefined reference to `Mix_QuerySpec'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x13c1): In function `S_Shutdown':
 src/client/cl_sound.c:621: undefined reference to `Mix_FreeChunk'
 debug-linux-gnu-i386/client/client/cl_sound.o(.text+0x13db):src/client/cl_sound.c:624: undefined reference to `Mix_CloseAudio'
 collect2: ld returned 1 exit status
 make: *** [ufo] Error 1