This is the source code for Clozure CL.
Because CCL is written in itself, you need an already-working version of CCL to compile it.
Please see https://github.com/Clozure/ccl/releases/latest and follow the instructions to get a copy of CCL for your platform.
To report a bug or request an enhancement, please make an issue at https://github.com/Clozure/ccl/issues.
If you run into problems, please send mail to openmcl-devel@clozure.com, ask on #ccl on libera.chat, or create an issue here, especially if you think you have found a bug.