Makefile produziert undefined reference to

> "make.exe" all

-------- begin --------

avr-gcc (WinAVR 20081205) 4.3.2

Copyright (C) 2008 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiling C: main.c

avr-gcc -c -mmcu=atmega32 -I. -gdwarf-2 -DF_CPU=11059200UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=obj/main.lst  -std=gnu99 --combine -fwhole-program -Wundef -MD -MP -MF .dep/main.o.d main.c -o obj/main.o

main.c:224: warning: return type of 'main' is not 'int'

Compiling C: lcd.c

avr-gcc -c -mmcu=atmega32 -I. -gdwarf-2 -DF_CPU=11059200UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=obj/lcd.lst  -std=gnu99 --combine -fwhole-program -Wundef -MD -MP -MF .dep/lcd.o.d lcd.c -o obj/lcd.o

Linking: main.elf

avr-gcc -mmcu=atmega32 -I. -gdwarf-2 -DF_CPU=11059200UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wundef -Wa,-adhlns=obj/main.o  -std=gnu99 --combine -fwhole-program -Wundef -MD -MP -MF .dep/main.elf.d obj/main.o obj/lcd.o   --output main.elf -Wl,-Map=main.map,--cref    -lm

obj/main.o: In function `main':

C:\C\AVR\NEC IR/main.c:230: undefined reference to `lcd_init'

C:\C\AVR\NEC IR/main.c:231: undefined reference to `lcd_clrscr'

C:\C\AVR\NEC IR/main.c:256: undefined reference to `lcd_clrscr'

C:\C\AVR\NEC IR/main.c:259: undefined reference to `lcd_gotoxy'

C:\C\AVR\NEC IR/main.c:359: undefined reference to `lcd_puts'

make.exe: *** [main.elf] Error 1

> Process Exit Code: 2

> Time Taken: 00:01