Recommended by Nick Allen

Interesting distributed version control system, programmed in Haskell (but a Common Lisp client exists).

An extension to the Common-Lisp System Definition Facility ASDF to support C code (interfaced via either UFFI or CFFI).

Repository of open source/free software for OSX. Appears to be more up-to-date than Fink.

NewI\O is an internet application system. The basic idea is to create a new browser which needs to be ported to all client platforms and communicates with servers over a new (non http) protocol.

Marc Feeley demonstrated how to write a simple Scheme to C compiler, in Scheme. In only 90 minutes! Presentation material (slides?), source code and video (200MB) are available.

The XPL programming language is a derivative of PL/I designed for compiler writing. XPL was first announced 1968

A tiny C program to avoid some problems with the way Unix is handling #! in script, by Aubrey Jaffer. Here is the (obfuscated) code: char* g(s,t) char * s ; char*t ;{int l = strlen (s);s =realloc(s,l+strlen(t)+1); strcat (s +l ,t ); return s ; } main (c,v) int c ;char **v;{ int j=1;char*m=calloc(j,j) ;for( ;j

A build tool which supposedly (comp.lang.lisp Msg-id=<1157589547.321598.175720@d34g2000cwd.googlegroups.com>) can replace the GNU auto* tools. From the page: "Welcome to CMake, the cross-platform, open-source make system. CMake is used to control the software compilation process using simple platform and compiler independent configuration files. CMake generates native makefiles and workspaces that can be used in the compiler environment of your choice. CMake is quite sophisticated: it is possible to support complex environments requiring system configuration, pre-processor generation, code generation, and template instantiation.