[cl-opengl-devel] Patch for 2d mipmap generation and more mouse buttons

[Charlie McMackin]

> IIRC, I get that weird -1 when using the glut:mouse-wheel event.
>

You were right, removing the mouse-wheel method allowed me to access
the new enums with the normal mouse method. Feels much nicer as well.

Handling the -1 with a different keyword name than I provided might
still be a good idea for the sorry that stumble upon the
glut:mouse-wheel trap :)

cm