Compiling for a specific processor

[Stephen J.Thompson <stephen@thompsonconsult.demon.co.uk>]

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Hello all,

I am downloading packages for debian using the apt-get source --compile 
<pkgname>

I would like to know how I make it compile for a specific processor. I am 
using a PII and I think the packages that I compile are for an i386. 

Thanks.

Regards,

Stephen.
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