ccl- 1.7 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version among the program users is 1.7. The software is categorized as Communication Tools. This free Mac application was originally produced by clozure. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Clozure CL is a free Common Lisp implementation with a long history. Some distinguishing features of the implementation include fast compilation speed, native threads, a precise, generational, compacting garbage collector, and a convenient foreign-function interface. Everyone interested in Clozure CL is welcome to participate in #ccl on irc.freenode.net. The channel logs are available.
You may want to check out more software for Mac, such as Craft Control Lite, Common Core Library or Collage Creator Lite, which might be similar to ccl-.