Version 9.5.0 of Icon is available in source and binary form. For details about the changes in this version, see the release notes.
Icon runs on Unix-like systems, including Linux and the Darwin environment of the Macintosh. Icon can run on Microsoft Windows if the Cygwin environment is present.
Documentation is on line:
Precompiled binaries are available for the Unix systems listed below. These binaries are built with graphics enabled, so the X Window system must be present on the target platform. Each package includes the translator, interpreter, interface builder, and library procedures. To install Icon from binaries,
icon-v950 directory.
Binary packages are 1.5 MB gzipped tar files.
Unpack by gunzip <file.tgz | tar xf –.
The source code package is a 3.1 MB gzipped tar file that includes the complete Icon program library. It can be configured for most Unix platforms including Cygwin and Darwin.