The library path is special in that there are two methods of
establishing and finding library search paths.
Although file_search_path/2 is more general
and more powerful, you may choose to define library_directory/1 if it
is adequate for your needs.
The default clauses for library_directory/1 in the Prolog system can
be seen by calling listing/[0,1], or by usint the +p library option
to prolog (see too-too-prolog). They are also shown in
ref-fdi-fsp-pre. To specify an additional directory
to be searched before the default ones, add a goal of the form
:- asserta(library_directory(Directory)).
to your
prolog.ini file. See ref-pro for a description of
prolog.ini files.