[avr-gcc-list] strange behaviour with ceil()

[Jamie Morken]

Hi,

The code below gives errors of
undefined reference to 'sin'  and
undefined reference to 'ceil'

When I remove the line:
"m = ceil(a);"

the errors go away but I need to use ceil in my code.
I spent an hour trying to find why this is an error with no luck! 
Please help! :)

Here is the code that has an error in it somewhere..:

#include <io.h>
#include <progmem.h>
#include <float.h>
#include <math.h>  

int calc()
{
float a;
float m;
a = sin(30);
m = ceil(a);
return m;
}

int main(void)
{
float i;
i = calc();
}




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