Luís Oliveira wrote: 
On Thu, Apr 8, 2010 at 12:18 AM, David Davis <dabukun@gmail.com> wrote:
  
I want to use gluUnProject in order to do things on-screen when the user
clicks with the mouse.  I'm using Ubuntu, and it seems that the opengl
libraries that come with it do not come with the glu(Un)Project methods
defined.
    

They're defined in the CL-GLU system, which you need to load.

HTH,
Hi Luís,

A 'egrep "[pP]roject" /usr/share/common-lisp/source/opengl/opengl/glu.lisp' returns nothing for me.  Maybe the CL opengl code in Ubuntu 9.10 is way out of date?

-Dave