Installation of SICStus under UNIX is performed by an installation (Shell)
script InstallSICStus, which interacts with the user to obtain
options such as where to install SICStus. As of SICStus 3.9.1, the Java
based SICStus Installer Tool is a graphical front-end to the
installation script, which automates downloading and
installation. The SICStus Installer Tool is available from the download
page. Use of the SICStus Installer Tool is strictly optional but may be
convenient, especially on platforms such as Mac OS X, that, by default,
lack C compiler.