Trying to use clang/head and XCC

[Dave Seifert]

sean typed:
> No documentation of what CFLAGS are required to build and ignore warnings.

Are you *sure* that ignoring those warnings is a good idea?

Brooks typed:
> In principle clang could be used as the cross compiler
> since it's multi-target, but gcc could never work unless the host and
> target are the same.

I have compiled NetBSD/alpha on FreeBSD/amd64 using gcc and it worked fine.