[cl-store](http://common-lisp.net/project/cl-store/),
[flexi-streams](http://weitz.de/flexi-streams/),
and [zlib](http://common-lisp.net/project/zlib/).
[cl-store](http://common-lisp.net/project/cl-store/),
[flexi-streams](http://weitz.de/flexi-streams/),
and [zlib](http://common-lisp.net/project/zlib/).