xorg-x11-drivers [inappropriately] requires all drivers modules

[David Timms]

I attempted to remove some of the xorg-x11-drv-mga /s3 etc since I have
only an ATI card, but found that the particular drivers "is needed by
(installed) xorg-x11-drivers".

Can the .spec be modified so that -drivers requires one-or-more -drv?
Also, the -drv-* would then need be a provider of -drv. This means an
update would only need to dl/install one of the 50 or so drivers.

I guess by default it would make sense to install a few base drv that
can be used as a fallback when no specific driver exists. The installer 
would need to "know" which drv to install above the fallbacks, perhaps 
such code needs to be invented first ?

Or doesn't the modular X + rpm requires/provides work this way ?