On Thu, Feb 14, 2008 at 11:46 AM, Andreas Eder <aeder at arcor.de> wrote: > > Error in COND [or a callee]: The function FIXP is undefined. > > That fixp should be changed to fixnump, then it should run if you > also change add1 to 1+ in the 2 places where it occurs. I wonder (without looking at this in any detail) if INTEGERP would work. Robert