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CMUCL is a high-performance, free Common Lisp implementation which runs on most major Unix platforms.

Common Lisp Project Manager - A project/library manager for Common Lisp that strives to cleanly separate the project manager process itself from the client image that uses it.

hg clone svn+https://abcl.org/svn/trunk/abcl

Quickref is a global documentation project for Common Lisp. It automatically builds a website aggregating reference manuals for all Quicklisp libraries. The manuals are generated with Declt in Texinfo format, and then processed to HTML with Makeinfo.

CL-SMTP is a simple lisp smtp client. It works in ACL, SBCL, CMUCL, OPENMCL, LISPWORKS, CLISP and ECL.

Antik provides a foundation for scientific and engineering computation in Common Lisp. It is designed not only to facilitate numerical computations, but to permit the use of numerical computation libraries and the interchange of data and procedures, whether foreign (non-Lisp) or Lisp libraries. It is named after the Antikythera mechanism, one of the oldest examples of a scientific computer known.

The GNU Scientific Library for Lisp (GSLL) allows the use of the GNU Scientific Library (GSL) from Common Lisp. This library provides a full range of common mathematical operations useful to scientific and engineering applications. The design of the GSLL interface is such that access to most of the GSL library is possible in a Lisp-natural way; the intent is that the user not be hampered by the restrictions of the C language in which GSL has been written. GSLL thus provides interactive use of GSL for getting quick answers, even for someone not intending to program in Lisp.

Web pages for cmucl, separate from the cmucl wiki. See https://cmucl.common-lisp.dev/

Thinlisp 1.0 with patches to fix build problems, in 2004. Thinlisp has not been updated since. Thinlisp is licensed under an Apache 1.0 style license, which is incompatible with the GPL. For these reasons, you are much better off using ECL instead.

A Common Lisp version of The Reasoned Schemer.

CL-SMTP is a simple lisp smtp client. It works in ACL, SBCL, CMUCL, OPENMCL, LISPWORKS, CLISP and ECL.

The GNU Scientific Library for Lisp (GSLL) allows the use of the GNU Scientific Library (GSL) from Common Lisp. This library provides a full range of common mathematical operations useful to scientific and engineering applications. The design of the GSLL interface is such that access to most of the GSL library is possible in a Lisp-natural way; the intent is that the user not be hampered by the restrictions of the C language in which GSL has been written. GSLL thus provides interactive use of GSL for getting quick answers, even for someone not intending to program in Lisp.

Common Lisp Project Manager - A project/library manager for Common Lisp that strives to cleanly separate the project manager process itself from the client image that uses it.