[PATCH 4.5 0/N]: Integrate GCC with the complex math library MPC

[Kaveh Ghazi]

From: "Joseph S. Myers" <joseph@codesourcery.com>

> These illustrate why the right answer is simply to make it required like
> MPFR (at the point when the support is added, rather than some time
> later).
>
> It might slow down development for a bit while people set up local MPC
> installations, but at the start of Stage 1 when lots of major developments
> are being merged I think slowing down development for a bit is probably a
> good thing.

Making MPC mandatory is fine with me if that is the consensus.