Lpc2000

Hi,
Wondering if anyone can shed some light on this...
using Keil and the GNU compiler for LPC2114.

I have a function that it to output a value to the terminal and 
converts it to a decimal in ASCII Characters, and the length of this 
can be determined by the function call.

Anyway, the following compile error results:
"
.\flash\terminal_fncs.o(.text+0xe38): In function `Print_DEC':
: undefined reference to `__udivsi3'
.\flash\terminal_fncs.o(.text+0xe6c): In function `Print_DEC':
: undefined reference to `__umodsi3'
collect2: ld returned 1 exit status
Target not created
"

I have commented out line by line and found 3 culprit lines they are 
marked with comments indicating they are a problem,. and the entire 
function can be seen here:

void Print_DEC(unsigned int value,unsigned int order)
{
unsigned char trailing_spaces;	// how many spaces to pad at end 
unsigned char digit_flag;	// set when first digit is hit
unsigned char calculate_value;

trailing_spaces = 0;
digit_flag = FALSE;

while (order > 0)
	{	
	// must show last digit if it is zero 
	if (order == 1)	
	   {
	   digit_flag = TRUE;
	   }
	// determine if digit is present 
	if (value >= order)
	 {
	 calculate_value= (value / order)+48;
	 Term_Tx(calculate_value);	 //WHY DOES THIS NOT WORK????
	 digit_flag = TRUE;
	 }
	else 
	 {
	 // no leading zeros, only in body of number 
	 if (digit_flag)
	   {
	   Term_Tx('0');
	   }
	else
	   {
	   trailing_spaces++;
	   }
	}
	
	value %= order;		 //WHY DO THIS NOT WORK?????
	order /= 10; 		 //WHY DO THIS NOT WORK?????
	}

// now pad spaces to overwrite previous number which may have had 
more digits 
while (trailing_spaces > 0)
	{
	Term_Tx(' ');
	trailing_spaces--;				
	}
}

the function Term_TX simply transmits an unsigned char to the com 
port.

Any ideas what these compiler errors mean, and what is causing the 
problem????

Thanks in advance

kind regards
pete