Building fglrx on Lenny

[koffiejunkie <koffiejunkielistlurker@koffiejunkie.za.net>]

I just noticed that kernel 2.6.21 is available in Lenny.  Finally - my 
CPU fan will work correctly!

So I have one problem,  building the fglrx module fails with this message:

 Building modules, stage 2.
 MODPOST 1 modules
FATAL: modpost: GPL-incompatible module fglrx.ko uses GPL-only symbol 
'paravirt_ops'
make[2]: *** [__modpost] Error 1
make[1]: *** [modules] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.21-2-k7'
make: *** [kmod_build] Error 2

Is there a way around this?   Strangely, it doesn't happen on 2.6.18

Thanks