port only builds with build_arch=i386 on command line -- any way to specify that in the portfile?

[Ryan Schmidt]

On Sep 2, 2016, at 12:00, Lawrence Velázquez <larryv at macports.org> wrote:

>> Indeed I have the new portfile working to the latest github commits, BUT because of the current BasiliskII JIT compiler internals, it requires gcc-4.0 only
> 
> This is ludicrous. GCC 4.0 is a decade old.
> 
>> (I'm hoping that apple-gcc40 will build it on newer OSs once I get this working here)
> 
> NB: We don't support building apple-gcc40 on anything newer than Mountain Lion.

Would it work with apple-gcc42? We have that for newer systems.