make your Arduino 0007 sketch smaller!

I don't know if it was even considered in the design of the patch, but I'm running Arduino with an ATMega168, and I get the error:

/Applications/arduino-0007/tools/avr/bin/../lib/gcc/avr/4.0.3/../../../../avr/lib/avr5/crtm168.o: In function `__bad_interrupt':

../../../../crt1/gcrt1.S:123: undefined reference to `main'

Couldn't determine program size: tools/avr/bin/avr-size: '/tmp/build38608.tmp/led_blink.hex': No such file

when I try to compile. Is it possible to use this patch for the ATMega168, and are there any other ways to eliminate 1 KB in Arduino0007?
Thanks in advance,

Fred