请问怎样才能正常编译这些三角函数？

在进入嵌入式开发时，只要包含有sin，cos，sqrt 等三角函数的时候总是无法正常的编译，而且会产生一些很奇怪的错误
lcd.o(.text+0x85c): In function `draw_heart':
: undefined reference to `cos'
lcd.o(.text+0x870): In function `draw_heart':
: undefined reference to `__muldf3'
lcd.o(.text+0x874): In function `draw_heart':
: undefined reference to `__fixdfsi'
lcd.o(.text+0x884): In function `draw_heart':
: undefined reference to `sin'
lcd.o(.text+0x898): In function `draw_heart':
: undefined reference to `__muldf3'
lcd.o(.text+0x89c): In function `draw_heart':
: undefined reference to `__fixdfsi'
lcd.o(.text+0x8b0): In function `draw_heart':
: undefined reference to `__floatsidf'
lcd.o(.text+0x8b4): In function `draw_heart':
: undefined reference to `sqrt'
lcd.o(.text+0x8b8): In function `draw_heart':
: undefined reference to `__fixdfsi'
lcd.o(.text+0x8e0): In function `draw_heart':
: undefined reference to `__adddf3'
lcd.o(.text+0x8fc): In function `draw_heart':
: undefined reference to `__ltdf2'
make: *** [lcd.bin] Error 1


我要怎样才能正常编译呢？makefile如下：
CFLAGS         := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -ffreestanding
lcd.bin : start.S  lcd.c  
        ARM-linux-gcc $(CFLAGS) -c -o start.o start.S
        arm-linux-gcc $(CFLAGS) -c -o lcd.o lcd.c
        arm-linux-ld -Ttext 0x0000000 start.o lcd.o -o lcds_elf
        arm-linux-ld -Tlcd.lds  start.o lcd.o  -o lcds_elf
        arm-linux-objcopy -O binary -S lcds_elf lcd.bin
        arm-linux-objdump -D -m arm  lcds_elf > lcd.dis
clean:
        rm -f   lcd.dis lcd.bin lcds_elf *.o