/media/sandbox/xtools/avr-dev/build/avr/bin/avr-gcc -g -Wall -O2 -mmcu=atmega2561    -c -o main.o main.c
In file included from /media/sandbox/xtools/avr-dev/build/avr/lib/gcc/avr/3.4.4/../../../../avr/include/avr/io.h:182,
                 from main.c:1:
/media/sandbox/xtools/avr-dev/build/avr/lib/gcc/avr/3.4.4/../../../../avr/include/avr/iom2561.h:36:22: iomxx0_1.h: No such file or directory
main.c:3: warning: return type defaults to `int'
main.c: In function `main':
main.c:4: warning: unused variable `c'
main.c:5: warning: control reaches end of non-void function
make: *** [main.o] Error 1