Build x86_64 binaries with AMD

[ghostec]

Hi!

First of all, sorry for possible mistakes with my english skills.

I finally have a almost 100% working OSX in my AMD pc... But..
I need to use homebrew to setup my developing environment, and every single program I try to build with it goes wrong.
I've figured out that the problem was that brew tries to make a Universal (x86_64 + i386) binaries. Then, editing brew formulas to make only i386 solved that.

But is that any way to build x86_64 binaries with AMD? =)

Thx