Installing Clozure CL and QuickLisp on CentOS 7 Download Clozure CL Open up terminal and enter the command: svn co http://svn.clozure.com/publicsvn/openmcl/release/1.11/linuxx86/ccl Where linuxx86 is one of: darwinx86 linuxx86 freebsdx86 solarisx86 windows linuxarm Download and Install QuickLisp Download QuickLisp from https://beta.quicklisp.org/quicklisp.lisp Enter the command: ./ccl/lx86cl64 --load /path/to/quicklisp.lisp In the CCL prompt enter: (quicklisp-quickstart:install)(ql:add-to-init-file) Creating Scripts to Run CCL Edit ./ccl/scripts/ccl and ./ccl/scripts/ccl64 to change CCL_DEFAULT_DIRECTORY=/usr/local/src/ccl line to CCL_DEFAULT_DIRECTORY=~/ccl Copy the scripts to /usr/local/bin directory: sudo cp ./ccl/scripts/ccl* /usr/local/bin/ References Linux Format Article Clozure CL Official Download Page