Is there a list of what open source software is installed with Snow Leopard?

"Here's a link from Apple's site. Here's what it says, among other things:

Mac OS X provides the most popular
open source development tools,
including the GNU Compiler Collection
(GCC), the GNU Debugger (GDB), make,
autoconf, and more.

In addition to compiler tools, Mac OS
X also provides a large number of
scripting languages.

Many of the compiler tools are
available under the GPL license.

The following open source projects are
available via CVS: cygnus gcc gcc2 gcc3 gdb keymgr

And here are the scripting languages supported:

Scripting languages harness the power
of the Unix command line. Mac OS X
includes the most popular open source
scripting languages ready to use out
of the box.

The following shells and scripting
languages are available as open
source:

awk bash ksh perl PHP (apache_mod_php)
python ruby sed (text_cmds) tcl tcsh
XSLT (libxslt) zsh

Some of these things come installed with XCode. You can find more information on the link above."