Clozure CL，曾用名 OpenMCL，也叫CCL。它是一款高性能的开源 Common Lisp 实现, 可运行于以下平台：
Mac OS X 10.4 and later (PowerPC and x86) Linux (PowerPC and x86) FreeBSD 6.x and later (x86) Solaris (x86) Microsoft Windows XP and later (x86)
ftp://ftp.clozure.com/pub/release/
