[MITgcm-support] MITgcm on Snow Leopard

[Dimitris Menemenlis]

Thank you Samar, this

> Try setting CFLAGS (or whatever it is in the opt  
> file) to "-arch i386".

fixed the Snow Leopard compilation problem.

I have added above flag to darwin_ia32_gfortran
assuming (without being able to test) that it
will do no harm to older 32-bit Mac OS X versions.

OS X gfortran users, please complain if your compilation breaks.

Dimitris