thanks!! i added the SDK repository, and yes gcc was there, now i have a new error:

make: arm-linux-gcc: program not found
make: Entering directory `/usr/src/kernel-power-headers'
CC [M] /targets/FREMANTLE_ARMEL/usr/src/rtl8187_linux_26.1010.0622.2006/ieee80211/ieee80211_softmac.o
/bin/sh: arm-linux-gcc: not found
make[1]: *** [/targets/FREMANTLE_ARMEL/usr/src/rtl8187_linux_26.1010.0622.2006/ieee80211/ieee80211_softmac.o] Error 127
make: *** [_module_/targets/FREMANTLE_ARMEL/usr/src/rtl8187_linux_26.1010.0622.2006/ieee80211] Error 2
make: Leaving directory `/usr/src/kernel-power-headers'

look like it needs too the packet: arm-linux-gcc
and it´s not in SDK or any other repository I have.
Could you do me a favor please?? type in your teminal:

apt-cache search arm-linux-gcc

to see if you have in your repositories that packet and i´m missing some other repository.