GNU Common Lisp

{{Use mdy dates|date=April 2024}}

{{Short description|Implementation of Common Lisp}}

{{Distinguish|text=CLISP, another Common Lisp implementation by GNU}}

{{Infobox software

| name = GNU Common Lisp

| logo =

| screenshot =

| caption =

| developer = GNU Project

| latest release version = 2.7.1

| latest release date = {{start date and age|2025|04|11}}{{cite web |title=GCL – an implementation of Common Lisp |date=2025-04-11 |url=https://www.gnu.org/software/gcl/ |publisher=GNU Project |access-date=April 11, 2025}}

| operating system = Unix-like, Microsoft Windows

| programming language =

| genre = Interpreter, compiler

| license = LGPLv2{{cite web |url=http://directory.fsf.org/wiki/gcl |title=GNU Common Lisp |date=October 28, 2014 |website=Free Software Directory |publisher=Free Software Foundation |access-date=August 30, 2022}}

| website = {{Official URL}}

}}

GNU Common Lisp (GCL) is the GNU Project's ANSI Common Lisp compiler, an evolutionary development of Kyoto Common Lisp. It produces native object code by first generating C code and then calling a C compiler.

GCL is the implementation of choice for several large projects including the mathematical tools Maxima, AXIOM, HOL88, and ACL2. GCL runs under eleven different architectures on Linux, and under FreeBSD, Solaris, Mac OS X, and Microsoft Windows.

Last stable release of GCL is of April 11, 2025.