avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib -Wa,-ahlms=main.lst -mmcu=attiny261 -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:18: /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warning: #warning "This header file is obsolete.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 ." avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib -Wa,-ahlms=/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/buffer.lst -mmcu=attiny261 -I/media/sandbox/xtools/avr-dev/build/avr/include -I/media/sandbox/xtools/avr-dev/build/avr/avr/include -I. /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/buffer.c -o /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/buffer.o avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib -Wa,-ahlms=/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.lst -mmcu=attiny261 -I/media/sandbox/xtools/avr-dev/build/avr/include -I/media/sandbox/xtools/avr-dev/build/avr/avr/include -I. /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c -o /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.o In file included from /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:20: /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warning: #warning "This header file is obsolete.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 ." /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c: In function `uartInit': /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: `UCR' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: (Each undeclared identifier is reported only once /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: for each function it appears in.) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: `RXCIE' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: `TXCIE' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: `RXEN' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:53: error: `TXEN' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c: In function `uartSetBaudRate': /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:94: error: `UBRRL' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c: In function `uartSendByte': /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:120: error: `UDR' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c: In function `SIG_UART_TRANS': /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:240: error: `UDR' undeclared (first use in this function) /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c: In function `SIG_UART_RECV': /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.c:264: error: `UDR' undeclared (first use in this function) make: *** [/media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/uart.o] Error 1 rm /media/sandbox/xtools/avr-dev/build/avr/lib/avrlib/buffer.o