NEW: ophcrack port

[Cédric Luthi]

Hello,
I have written a port for ophcrack, a windows password cracker. See  
http://trac.macports.org/projects/macports/ticket/11114

Ophcrack doesn't work on powerpc machines, I think it's because of  
endianness issues. I have written a post-main (see http:// 
trac.macports.org/projects/macports/attachment/ticket/11114/Portfile)  
that checks for intel processor and exits with an error if it fails.  
Is it a good idea ? Is there a better/standard way to deal with port  
supporting only specific architectures ?

Regards.
Cédric Luthi