CCES replacement for interrupts

Hi

I am using the CCES option to convert a VDSP ADSP-21469 project -- audio talkthrough program I modified

The only error I have is for

#include <signal.h>

with CCES compiler saying that interrupts( )  is used without a prototype and SIG_SP1 is not defined

I presume that this means I have to take a different approach to interrupts

is there a 21469 demo audio talkthrough program already converted to CCES?

The only CCES SHARC examples I can see are No_HW

When I moved the Blackfin audio talkthrough  from VDSP to CESS -- the interrupts went over smoothly

Thanks

Mike