[sldev] [VWR] Shadows on Linux

[Opensource Obscure]

I just moved from a Nvidia 7300 graphic card to a 9600 GT,
that AFAIK should support the shadow draft viewer.

Are shadows present in the Linux codebase?

Which branch should I check out,
and which steps should I take before and after compiling the 
sources in order to enable shadows (if possible at all) ?


(I know how to compile the viewer sources and apply patches
on my system, but not much more than this)

Thanks in advance.
Opensource Obscure