braries for machine learning, neural

Clozure CL is an open source Common Lisp implementation that runs on PowerPC hardware under Mac OS X and Linux, and on x86-64 hardware under Mac OS X, Linux, and FreeBSD. A port to 32-bit x86 is progressing well; a port to 64-bit Windows is also pretty far along. There's also a Solaris x86-64 port that is mostly working.