bootstrap broken: nan() does not match prototype

[Zack Weinberg]

"Kaveh R. Ghazi" <ghazi@caip.rutgers.edu> writes:

> While this works around the bootstrap problem, I'm not sure whether
> the builtin conflict issue described in the PR is something that still
> needs to be addressed in the C frontend and we're just side stepping
> it.  So I'll leave the PR open and let someone else decide whether we
> can close it or not.

It does; I've just checked in a patch and a test case.

zw