Extended Runtime Library Add-On
Applications written in Quintus Prolog and destined for end-users must
be packaged as runtime systems.
The runtime system, which contains the Quintus runtime
library, is a binary program that can be invoked from the
operating system; it has a restricted set of built-in predicates and
no Prolog top-level.
The Quintus extended runtime library Add-On, in addition
to the above restricted set of built-in runtime predicates, includes
the compiler. If the application needs the compiler at run-time, a
runtime system linked with the Quintus extended runtime
library provides that.
There are many packages available
for Quintus Prolog
ProXL and ProXT Graphical Interfaces (UNIX only)
ProXL and ProXT provide comprehensive graphical interface programming facilities
including support for X-Windows environments including OpenLook and Motif.