avrdude.exe: set SCK frequency to 187500 Hz
avrdude.exe: warning: cannot set sck period. please check for usbasp firmware update.
avrdude.exe: error: programm enable: target doesn't answer. 1
avrdude.exe: initialization failed, rc=-1
avrdude.exe: AVR device initialized and ready to accept instructions
avrdude.exe: Device signature = 0x000000
avrdude.exe: Yikes!  Invalid device signature.
avrdude.exe: Expected signature for ATMEGA8 is 1E 93 07

avrdude.exe done.  Thank you.

Compiled special for http://forum.atnel.pl (v5.11.1)

avrdude: set SCK frequency to 93750 Hz
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.01s

avrdude: Device signature = 0x1e9307
avrdude: reading lfuse memory:

Reading | ################################################## | 100% 0.00s

avrdude: writing output file "C:\Users\DrexonPl\Documents\mkAVRCalculator\tmp_fuse_lo.hex"
avrdude: reading hfuse memory:

Reading | ################################################## | 100% 0.00s

avrdude: writing output file "C:\Users\DrexonPl\Documents\mkAVRCalculator\tmp_fuse_hi.hex"
avrdude: reading lock memory:

Reading | ################################################## | 100% 0.00s

avrdude: writing output file "C:\Users\DrexonPl\Documents\mkAVRCalculator\tmp_fuse_lock.hex"

avrdude done.  Thank you.

Compiled special for http://forum.atnel.pl (v5.11.1)

c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/lib/avr4/crtm8.o:(.init9+0x0): undefined reference to `main'
make: *** [test.elf] Error 1

#include <avr/io.h>
#include <util/delay.h>

int main(void) {
   while (1) {

   }
}