/opt/project/gary/projects/avr-toolchain/2008-04-15/avr1/bin/avr-gcc -g -Wall -O2 -mmcu=at90s1200 -Wa,-gstabs -c -o main.o main.c main.c:1: error: MCU 'at90s1200' supported for assembler only In file included from /mnt/hdc1/gary/projects/avr-toolchain/2008-04-15/avr1/lib/gcc/avr/4.2.2/../../../../avr/include/avr/io.h:300, from main.c:3: /mnt/hdc1/gary/projects/avr-toolchain/2008-04-15/avr1/lib/gcc/avr/4.2.2/../../../../avr/include/avr/io1200.h:51:4: warning: #warning "MCU not supported by the C compiler" main.c:12: warning: return type of 'main' is not 'int' make: *** [main.o] Error 1