It's not clear that you want it to work; since it's an incompatible
interface, you might only want newer versions of nautilus to work with
the new libexif.  However, I wanted to provide the trivial patch,
which I will attach.

The latest version of libexif changes to requiring a buffer be passed
into it instead of providing a static buffer, presumably to allow
threaded programs to use libexif without a mutex.  I'm not sure how
you would want to handle supporting both interfaces, buf if you are
interested in moving to the latest exif unconditionally, this patch
should give identical functionality.  (The buffer in old exif was
1024 characters; this patch just reproduces that exact behavior.)