SPEC file question

I know this might be a little off topic here, but I think it is a valid
question

With FC5 coming soon it looks like they are changing the X packages into
modules.

So say in my current spec file I have

BuildRequires: xorg-x11-devel mozilla-devel > 1.5 gtk2-devel > 2.2.1

In FC5 this might be a different list so how can I say

BuildRequires: (xorg-x11-devel or (xorg-xpm-devel and
xorg-something-devel) and mozilla-devel > 1.5 and gtk2-devel > 2.2.1


Basically I want to be able to use the same spec file for FC3 thru FC5.

Any ideas on this?

Thanks,

Kevin

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