avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib -Wa,-ahlms=main.lst -mmcu=at90s2343 -I/media/sandbox/xtools/avr-dev/build/avr/include -I/media/sandbox/xtools/avr-dev/build/avr/avr/include -I. main.c -o main.o In file included from main.c:19: /media/sandbox/xtools/avr-dev/build/avr/lib/gcc/avr/3.4.4/../../../../avr/include/avr/signal.h:36:2: warning: #warning "This header file is obsolete. Use ." main.c: In function `timerTest': main.c:75: error: `DDRD' undeclared (first use in this function) main.c:75: error: (Each undeclared identifier is reported only once main.c:75: error: for each function it appears in.) main.c:75: error: `PD4' undeclared (first use in this function) main.c:76: error: `PD5' undeclared (first use in this function) make: *** [main.o] Error 1