%PATH%
is extended with the provided directory.
AbsDir may be specified in the Prolog canonical syntax. See
prolog_to_os_filename/2.
Note that use_foreign_library/1
passes an absolute path to the DLL if the destination DLL can be located
from the specification using absolute_file_name/3.
This predicate is available from library library(shlib)
and
can be autoloaded.