Porting X to PowerPC platform

I am writing a framebuffer device for my MPC823FADS platform, and i need to
port a simple X-server based on the framebuffer to my PowerPC.

I looked at the XFree86 sources but it's not clear hot to compile them for
PowerPC targets!

Are you already done this?
How can i proceed?

I'm in a hurry... please help me soon!

Bye,
Paolo Scaffardi.

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