The quick-and-dirty solution would be to type
Code:
-I/path/to/libraries
every time you compile, but that gets real annoying real fast.
Did you install this yourself, or did you get Xcode? If you built yourself, how did you do it, and what went wrong? (As autotools shouldn't have gotten us this wedged up.) I'm not sure what the system path is on BSD, and I'm not on the Mac at the moment, so I don't know whether or not your files are in the right place and the system is misconfigured, or the system is configured normally but your files ended up somewhere else.