Start generating libm tests automatically with MPFR

[David Miller]

From: "Joseph S. Myers" <joseph@codesourcery.com>
Date: Wed, 27 Nov 2013 02:29:11 +0000

> As proposed in
> <https://sourceware.org/ml/libc-alpha/2013-05/msg00059.html>, this
> patch implements automatic generation of expected results for libm
> tests using MPFR, to provide a replacement of cut-and-paste of results
> computed by ad hoc programs using MPFR (or other tools).

I just wanted to say that this is fantastic work, thanks for doing
this!