Sorry about the rather late reply to this, been hectic IRL lately preparing for MCP certifications etc. What exactly is it you're trying to tell me here? I'm not understanding. You saying Cygwin now has BFD support but lacks the libiberty.h file? If these 2 files are indeed machine independent, then including a libiberty.h file from any distribution which has one should work, yes? If this is indeed the case, I'd like to know ASAP so it can be included.
Just keep in mind - we do not support installations in Windows environments. Those of us doing the actual coding for AFKMud lack the time needed to provide this support.