Thanks for the pointer:) I hadn't encountered that module in my peruse of CPAN.

For various reasons, the header files I am using are actually assembler header files (.inc) rather than C header files which kyboshes it somewhat. Also, from my quick look at the module, it would require the header files to be available on the target system (which could be a legal problem unless they got them from a C compiler distribution ) and (I think) it would export everything in the header rather than just those things used, which doesn't suit my purpose.