Da isser...

Code:
**** Build of configuration Release for project AVR01 ****

make all 
Building target: AVR01.elf
Invoking: AVR C Linker
avr-gcc -Wl,-Map,AVR01.map -L"D:\Eclipse IDE\avr gcc\files" -L"D:\Eclipse IDE\avr-libc" -mmcu=atmega32 -o"AVR01.elf"  ./Main.o   
./Main.o: In function `uart_puts':
Main.c:(.text+0x344): undefined reference to `uart_putc'
./Main.o: In function `main':
Main.c:(.text+0x3ae): undefined reference to `uart_init'
make: *** [AVR01.elf] Error 1