[MLton] starting builds

[Stephen Weeks]

> > +                | HPPA => (align := Align8; codegen := CCodegen)
...
> That was the only required change.

Glad to hear it was simple.  I've committed the fix.

> The other problems all came down to a corrupt constants file.
> Somehow or another, different options lead to different constants.

Hmmm.  I don't think that's the case.  I'm not sure what the issue
was, but it may not be worth figuring out.

As an easy attempt, if you could send the two different constants
files, I'd be interested to see what changed.