The Common-Lisp-Posix project has two purposes:

The programming language will be Common-Lisp.

The target OSes will be all SuSv3/POSIX compliant OSes.

One reference implementation may use the UFFI package.

  1. Generalities

The Single UNIX Specification Version 3 consists of:

The Preface of the The Open Group Base Specifications, Issue 6 lists the following principle that guided the development of that standard: