common-lisp ECL (Embeddable Common Lisp) is an implementation of the Common Lisp language as described in the X3J13 Ansi specification, featuring CLOS (Common Lisp Object System), conditions, loops, etc, plus a translator to C, which can produce standalone executables. Use generational garbage collection (experimental) Use type information during garbage collection (experimental) Use dev-libs/libatomic_ops library ecls