Someone

linking picodriveds.arm9.elf
ym2612.o: In function `init_tables':
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1188: undefined reference to `pow'
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1189: undefined reference to `floor'
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1217: undefined reference to `sin'
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1222: undefined reference to `log'
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1224: undefined reference to `log'
~/source/picodriveds/branches/restructure/picodriveds/arm9/source/pico/sound/ym2612.c:1224: undefined reference to `log'
collect2: ld returned 1 exit status
make[2]: *** [~/source/picodriveds/branches/restructure/picodriveds/arm9/picodriveds.arm9.elf] Error 1
make[1]: *** [build] Error 2
make[1]: Leaving directory `~/source/picodriveds/branches/restructure/picodriveds/arm9'
make: *** [arm9/picodriveds.elf] Error 2