Porting GCC/G++

[Witness]

I am working on a project to create an operating system. We would like to have 
GCC/G++ on it from the start and use it to do development. However, I can't 
find any documentation on what I need to support the compiler. All the Porting 
docs I come across are related to porting between processor architectures. 
Could someone please point me to some good material?  Thanks

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Benjamen R. Meyer                            Witness
bm_witness@yahoo.com                    bmeyer67@calvin.edu
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