Clojure's primary target is the JVM and they had an officially supported CLR(.NET) branch for a while (and it's now supported by a 3rd party https://github.com/

Clojure's primary target is the JVM and they had an officially supported CLR(.NET) branch for a while (and it's now supported by a 3rd party https://github.com/richhickey/clojure-clr https://github.com/richhickey/clojure-clr). I wouldn't be surprised if in the future portability became a bigger concern within the Clojure community (http://blog.n01se.net/?p=41 http://blog.n01se.net/?p=41). (That said I realize you were looking for a Common Lisp, but sometimes good enough is good enough ;) )