EiffelStudio Homebrew package.

I've been told to do a PR here although I'm not sure how this would work for end users to get eiffelstudio without fidling with the homebrew configuration.

Thanks,
Manu
Could you help me out with this then? We have our own names for platforms:
* macoss-x86 for x86
* macoss-x86-64 for x86_64
* macosx-ppc for PPC 32-bit

How do I get the platform name from homebrew so that I can provide the right argument to our scripts?

Also it is not clear to me if there is a way to produce a 32-bit version of an executable on the latest versions of MacOS X.