load-foreign-library-error, error,
serious-condition, condition, t
Signalled when a foreign library load completely fails. The exact
meaning of this varies depending on the real conditions at work, but
almost universally, the implementation's error message is useless.
However, CFFI does provide the useful restarts retry and
use-value; invoke the retry restart to try loading the
foreign library again, or the use-value restart to try loading
a different foreign library designator.