I downloaded the xerces-c-3.0.1 zip file and searched it. I could find
no reference to xcoff, aouthdr, filehdr or syms within the source code.
The question is, what file is generating a compilation error? A
xerces file, or your own source code? What, precisely, is the error,
and what compiler level are you using? If this is your source code,
you might have to separate XML function from object file function.
Finally, have you tried to ascertain exactly why syms.h is getting
included (xlC -E)?
Gary R. Hook
Vocatus atque non vocatus deus aderit